Split type plastic molding precision mold

Abstract

The utility model discloses a split type plastic molding precision mold, which relates to the technical field of molds, and comprises a bottom plate, a bottom mold is arranged on the upper surface of the bottom plate, a molding groove is formed in the upper surface of the bottom mold, a top mold is arranged above the bottom mold, a liquid injection groove is formed in the top mold in a penetrating manner, and the liquid injection groove is communicated with the molding groove. The upper surface of the top mold is fixedly connected with a liquid injection pipe, the liquid injection pipe is communicated with a liquid injection groove, the inner wall of the liquid injection groove is fixedly connected with a flow deflector, the end, away from the inner wall of the liquid injection groove, of the flow deflector inclines downwards, the upper surface of the flow deflector is fixedly connected with a plurality of pointed cones, and an air outlet groove is formed in the top mold in a penetrating mode. An observation pipe is fixedly connected to the upper surface of the top die and communicates with the air outlet groove. According to the split type plastic molding precision mold, by arranging the flow deflector, the pointed cone and other structures, when plastic melt is injected into the molding groove through the liquid injection pipe and the liquid injection groove, bubbles can be punctured by the pointed cone, the workpiece molding quality is improved, and the workpiece precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a split type plastic molding precision mold. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material.

[0003] In the prior art, bubbles are easily generated in the casting path during the pouring slurry flow process of plastic molding, which not only affects the surface quality of the workpiece, but may also cause the workpiece to fail, and the processing efficiency needs to be improved.

[0004] Therefore, it is necessary to propose a split type plastic molding precision mold to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a split type plastic molding precision mold to solve the problem that bubbles are easily generated in the casting path during the casting slurry flow process, which not only affects the surface quality of the workpiece, but also may cause the workpiece to fail, and the processing efficiency needs to be improved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a split-type plastic molding precision mold, comprising a base plate, a bottom mold is arranged on the upper surface of the base plate, a molding groove is opened on the upper surface of the bottom mold, a top mold is arranged above the bottom mold, a liquid injection groove is opened through the top mold, a liquid injection tube is fixedly connected to the upper surface of the top mold, the liquid injection tube is communicated with the liquid injection groove, a guide plate is fixedly connected to the inner wall of the liquid injection groove, one end of the guide plate away from the inner wall of the liquid injection groove is inclined downward, a plurality of pointed cones are fixedly connected to the upper surface of the guide plate, an air outlet groove is opened through the top mold, an observation tube is fixedly connected to the upper surface of the top mold, and the observation tube is communicated with the air outlet groove.

[0007] Preferably, the guide vanes are provided in plurality, and the guide vanes are distributed in a circular array around the inner wall of the liquid injection groove.

[0008] Preferably, a top plate is arranged above the top mold, and the top plate and the bottom plate are correspondingly distributed up and down, and columns are fixedly connected to the four corners of the upper surface of the bottom plate, and the tops of the columns are fixedly connected to the lower surface of the top plate.

[0009] Preferably, an electric push rod is fixedly connected to the upper surface of the top plate, a round hole is penetrated through the top plate for the telescopic end of the electric push rod to pass through, and the top mold is fixedly connected to the telescopic end of the electric push rod.

[0010] Preferably, transverse plates are provided on both sides of the bottom mold, the internal threads of the transverse plates are connected to threaded rods, one end of the threaded rod close to the bottom mold is rotatably connected to a round block, and the side of the round block facing away from the threaded rod is fixedly connected to a clamping plate.

[0011] Preferably, both ends of the bottom mold are provided with square grooves, and a square block is fixedly connected to a surface of the clamping plate close to the bottom mold, and the square block is inserted into the corresponding square groove.

[0012] Preferably, one end of the threaded rod away from the round block is fixedly connected to a rotating block.

[0013] Preferably, a support plate is fixedly connected to the lower surface of the bottom plate, and two support plates are provided, and the two support plates are respectively distributed at two ends of the bottom plate.

[0014] The beneficial technical effect of the utility model is that: by setting structures such as guide plates and pointed cones, when the plastic melt is injected into the interior of the molding groove from the injection pipe and the injection groove, the pointed cone will puncture the bubbles, thereby improving the quality of workpiece molding and ensuring the precision of the workpiece; the plastic melt is injected into the interior of the molding groove from the injection pipe and the injection groove, and the gas inside the molding groove will be discharged from the air outlet groove, further avoiding the generation of bubbles; the injection pipe, the injection groove, the air outlet groove and other structures are set to ensure that the melt will gradually enter the molding groove, filling it more densely, thereby improving the quality of workpiece molding; when the bottom mold is replaced, the threaded rod is rotated, and the clamping plate is driven to move toward the bottom mold through the round block, and the square block is inserted into the corresponding square groove to complete the fixation of the bottom mold position, thereby ensuring the precision of molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a split-type plastic molding precision mold from one perspective of the utility model.

[0016] Figure 2 This is a structural schematic diagram of the utility model of a split type plastic molding precision mold from another perspective.

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the split-type plastic molding precision mold of the utility model.

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] Figure 5 For this utility model Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0020] In the figure: 1. bottom plate; 2. bottom mold; 3. forming groove; 4. top plate; 5. electric push rod; 6. top mold; 7. injection groove; 8. injection pipe; 9. guide plate; 10. pointed cone; 11. air outlet groove; 12. observation tube; 13. cross plate; 14. threaded rod; 15. rotating block; 16. round block; 17. clamping plate; 18. square groove; 19. square block; 20. support plate; 21. column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] like Figure 1-Figure 5 As shown, the utility model provides a split type plastic molding precision mold, including a base plate 1, the lower surface of the base plate 1 is fixedly connected with a support plate 20, and the support plates 20 are provided in two, and the two support plates 20 are respectively distributed at the two ends of the base plate 1. The support plate 20 is provided to support the mold structure. A bottom mold 2 is provided on the upper surface of the base plate 1, and a molding groove 3 is provided on the upper surface of the bottom mold 2. When used specifically, the molding groove 3 can be set to a suitable shape structure according to the use requirements. At the same time, a plurality of bottom molds 2 with molding grooves 3 of different structural shapes can also be prepared. Since the bottom mold 2 and the base plate 1 are of a split structure, the bottom mold 2 can be quickly replaced, thereby improving processing efficiency and reducing production costs.

[0023] Both sides of the bottom mold 2 are provided with a horizontal plate 13, the internal threads of the horizontal plate 13 are connected to a threaded rod 14, the end of the threaded rod 14 close to the bottom mold 2 is rotatably connected to a round block 16, and the side of the round block 16 facing away from the threaded rod 14 is fixedly connected to a clamping plate 17. Both ends of the bottom mold 2 are provided with square grooves 18, and the side of the clamping plate 17 close to the bottom mold 2 is fixedly connected to a square block 19, which is inserted into the corresponding square groove 18.

[0024] Specifically, when the bottom mold 2 is replaced, the threaded rod 14 is rotated, and the clamping plate 17 is driven to move toward the bottom mold 2 through the round block 16, and the square block 19 is inserted into the corresponding square groove 18 to fix the position of the bottom mold 2, thereby ensuring the precision of molding. In addition, a mark can be set between the bottom mold 2 and the bottom plate 1 to enable the bottom mold 2 to be quickly positioned.

[0025] In order to improve the rotation efficiency of the threaded rod 14 , a rotating block 15 is fixedly connected to one end of the threaded rod 14 away from the round block 16 .

[0026] A top mold 6 is arranged above the bottom mold 2. After the bottom mold 2 is fixed, the top mold 6 moves downward and is pressed and fitted on the bottom mold 2, changing from a separate state to a combined state. A liquid injection groove 7 is provided through the top mold 6. A liquid injection pipe 8 is fixedly connected to the upper surface of the top mold 6, and the liquid injection pipe 8 is connected to the liquid injection groove 7. When in use, the plastic melt is injected into the interior of the molding groove 3 through the liquid injection pipe 8 and the liquid injection groove 7, and the melt gradually enters the molding groove 3, and the melt can be filled densely without shaking separately.

[0027] Considering that bubbles are easily generated during the injection of plastic melt, a guide plate 9 is fixedly connected to the inner wall of the injection groove 7. The guide plates 9 are provided in a plurality, and the plurality of guide plates 9 are distributed in a circular array around the inner wall of the injection groove 7. The end of the guide plate 9 away from the inner wall of the injection groove 7 is tilted downward, and a plurality of sharp cones 10 are fixedly connected to the upper surface of the guide plate 9. The utility model provides structures such as the guide plate 9 and the sharp cone 10, so that when the plastic melt is injected into the molding groove 3 from the injection pipe 8 and the injection groove 7, the sharp cone 10 will puncture the bubbles, thereby improving the molding quality of the workpiece and ensuring the precision of the workpiece.

[0028] The top mold 6 is provided with an air outlet groove 11, and an observation tube 12 is fixedly connected to the upper surface of the top mold 6, and the observation tube 12 is communicated with the air outlet groove 11. The observation tube 12 is made of transparent material, and whether the injection of the plastic melt is completed can be observed from the observation tube 12.

[0029] The plastic melt is injected into the interior of the molding tank 3 through the injection pipe 8 and the injection tank 7, and the gas inside the molding tank 3 is discharged through the gas outlet groove 11, so as to further avoid the generation of bubbles.

[0030] At the same time, the provision of the liquid injection pipe 8, the liquid injection groove 7, the air outlet groove 11 and other structures can ensure that the melt will gradually enter the molding groove 3, fill it more densely, and improve the quality of workpiece molding.

[0031] A top plate 4 is arranged above the top mold 6 , and the top plate 4 and the bottom plate 1 are correspondingly distributed up and down. The four corners of the upper surface of the bottom plate 1 are fixedly connected with columns 21 , and the tops of the columns 21 are fixedly connected to the lower surface of the top plate 4 .

[0032] An electric push rod 5 is fixedly connected to the upper surface of the top plate 4 . A round hole is penetrated through the top plate 4 for the telescopic end of the electric push rod 5 to pass through. The top mold 6 is fixedly connected to the telescopic end of the electric push rod 5 .

[0033] When in use, the upper and lower movements of the top mold 6 are controlled by the electric push rod 5 .

Claims

1. A split type plastic molding precision mold, characterized by: The invention comprises a bottom plate (1), wherein a bottom mold (2) is arranged on the upper surface of the bottom plate (1), a molding groove (3) is provided on the upper surface of the bottom mold (2), a top mold (6) is arranged above the bottom mold (2), a liquid injection groove (7) is provided through the top mold (6), a liquid injection pipe (8) is fixedly connected to the upper surface of the top mold (6), the liquid injection pipe (8) is communicated with the liquid injection groove (7), a guide plate (9) is fixedly connected to the inner wall of the liquid injection groove (7), one end of the guide plate (9) away from the inner wall of the liquid injection groove (7) is inclined downward, a plurality of pointed cones (10) are fixedly connected to the upper surface of the guide plate (9), and an air outlet groove (11) is provided through the top mold (6).

2. The split type plastic molding precision mold according to claim 1, characterized in that: The guide plates (9) are arranged in a plurality, and the plurality of guide plates (9) are distributed in a circular array around the inner wall of the liquid injection groove (7).

3. The split type plastic molding precision mold according to claim 1, characterized in that: A top plate (4) is arranged above the top mold (6), and the top plate (4) and the bottom plate (1) are arranged correspondingly up and down, and columns (21) are fixedly connected at the four corners of the upper surface of the bottom plate (1), and the top of the column (21) is fixedly connected to the lower surface of the top plate (4).

4. The split type plastic molding precision mold according to claim 3, characterized in that: An electric push rod (5) is fixedly connected to the upper surface of the top plate (4), a circular hole is penetrated through the top plate (4) for the telescopic end of the electric push rod (5) to pass through, and the top mold (6) is fixedly connected to the telescopic end of the electric push rod (5).

5. The split type plastic molding precision mold according to claim 1, characterized in that: A transverse plate (13) is provided on both sides of the bottom mold (2); a threaded rod (14) is connected to the internal thread of the transverse plate (13); a round block (16) is rotatably connected to one end of the threaded rod (14) close to the bottom mold (2); and a clamping plate (17) is fixedly connected to the side of the round block (16) facing away from the threaded rod (14).

6. The split type plastic molding precision mold according to claim 5, characterized in that: Both ends of the bottom mold (2) are provided with square grooves (18); a square block (19) is fixedly connected to a surface of the clamping plate (17) close to the bottom mold (2); and the square block (19) is inserted into the corresponding square groove (18).

7. The split type plastic molding precision mold according to claim 6, characterized in that: One end of the threaded rod (14) away from the round block (16) is fixedly connected to a rotating block (15).

8. The split type plastic molding precision mold according to claim 1, characterized in that: A support plate (20) is fixedly connected to the lower surface of the bottom plate (1), and two support plates (20) are provided, and the two support plates (20) are respectively distributed at two ends of the bottom plate (1).

9. The split type plastic molding precision mold according to claim 1, characterized in that: An observation tube (12) is fixedly connected to the upper surface of the top mold (6), and the observation tube (12) is in communication with the air outlet groove (11).

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