Injection mold with uniform filling effect

Abstract

The utility model relates to an injection mold, in particular to an injection mold with uniform filling effect, which comprises a bottom plate, a lower fixing block detachably mounted on the surface of the bottom plate, an upper fixing block detachably mounted on the surface of the lower fixing block, a lower mold fixedly mounted in the lower fixing block, and an upper mold fixedly mounted in the upper fixing block. The upper surface of the lower mold is movably attached to the lower surface of the upper mold, mold holes are formed in the interior of the lower mold and the surface of the upper mold, discharging openings of the guide pipes are connected with the interiors of the mold holes, liquid at the injection molding openings is guided into injection molding gaps to complete injection molding work, and the injection molding openings and the guide pipes are arranged on the side edges of the mold holes. The side injection molding can better control the flowing path of the plastic in the mold hole, so that more uniform filling and cooling can be realized, the internal stress is reduced, the defects of cavities, shrinkage cavities and the like are avoided, and the side injection molding can provide a better filling effect for some products with complex geometrical shapes, thin walls or deep cavities.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to an injection mold with uniform filling effect. 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] When the existing injection mold is used, the shape of some workpieces is relatively complex, and the injection liquid does not flow uniformly during filling. Now, an injection mold with uniform filling effect is proposed. Utility Model Content

[0004] The main purpose of the utility model is to provide an injection mold with uniform filling effect, so as to solve the problem that when the existing injection mold is used, the injection liquid flows unevenly during filling because the shapes of some workpieces are relatively complex.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, there is provided an injection mold with uniform filling effect, comprising a base plate, a lower fixed block is detachably mounted on the surface of the base plate, an upper fixed block is detachably mounted on the surface of the lower fixed block, a lower mold is fixedly mounted inside the lower fixed block, an upper mold is fixedly mounted inside the upper fixed block, the upper surface of the lower mold is movably fitted with the lower surface of the upper mold, and mold holes are provided inside the lower mold and on the surface of the upper mold.

[0006] Furthermore, an injection port is provided on the surface of the upper fixed block, a guide tube is fixedly connected inside the injection port, a discharge port is fixedly installed at one end of the guide tube, and the discharge port is fixedly connected to the inside of the mold hole.

[0007] Furthermore, a propulsion device is fixedly installed on one side of the lower fixed block, and the propulsion device includes a connecting block, and an injection head is slidably connected inside the connecting block, and the injection head is movably inserted inside the mold hole.

[0008] Furthermore, the outer diameter of the injection head is smaller than the inner diameter of the mold hole, an injection gap is formed between the injection head and the mold hole, and the discharge port is fixedly connected to the inside of the injection gap.

[0009] Furthermore, a cylinder is fixedly mounted on the surface of the connection block, a push rod is drivingly connected to the output end of the cylinder, a moving block is fixedly mounted on the end of the push rod, and the injection molding head is fixedly mounted on the surface of the moving block.

[0010] Furthermore, a moving groove is provided inside the connecting block, and the moving block is slidably connected inside the moving groove.

[0011] Furthermore, a placement groove is provided inside the upper fixing block, a pressing block is detachably installed inside the placement groove, and a sleeve block is fixedly installed inside the lower fixing block, and the end of the sleeve block is movably fitted with the bottom of the pressing block.

[0012] Furthermore, a plurality of positioning columns are fixedly mounted on the surface of the bottom plate, a plurality of positioning holes are opened inside the lower fixing block, and the positioning columns are movably inserted inside the positioning holes.

[0013] Furthermore, screw holes are provided around the bottom plate, the lower fixing block and the upper fixing block, and bolts are threadedly connected inside the screw holes.

[0014] Furthermore, the guide tube is arranged on the side of the mold hole, and the shape of the injection port is an inverted cone.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model is provided with a guide tube, the discharge port of the guide tube is connected to the inside of the mold hole, the liquid at the injection port is guided to the inside of the injection gap to complete the injection molding work, the injection port and the guide tube are arranged on the side of the mold hole, and the side injection molding can better control the flow path of the plastic in the mold hole, which helps to achieve more uniform filling and cooling, reduce internal stress, and avoid defects such as voids and shrinkage holes. For some products with complex geometric shapes, thin walls or deep cavities, side injection molding can provide better filling effects and is suitable for various types of plastic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

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

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper mold and the lower mold of the utility model;

[0021] Figure 5 This is a schematic diagram of the injection molding gap structure of the utility model.

[0022] Illustrations: 1. Base plate; 11. Socket block; 12. Positioning column; 2. Lower fixing block; 21. Lower mold; 22. Screw hole; 23. Positioning hole; 3. Upper fixing block; 31. Upper mold; 32. Pressing block; 33. Injection port; 34. Guide tube; 35. Mold hole; 36. Discharge port; 37. Placement slot; 38. Injection gap; 39. Bolt; 4. Propelling device; 41. Connecting block; 42. Cylinder; 43. Push rod; 44. Moving block; 45. Moving slot; 46. Injection head. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] See also Figures 1 to 5 , an injection mold with uniform filling effect provided by an embodiment of the utility model, includes a bottom plate 1, the bottom plate 1 supports the device, a lower fixing block 2 is detachably mounted on the surface of the bottom plate 1, an upper fixing block 3 is detachably mounted on the surface of the lower fixing block 2, the upper fixing block 3 is fitted with the lower fixing block 2 to form a whole and start injection molding, a lower mold 21 is fixedly mounted inside the lower fixing block 2, an upper mold 31 is fixedly mounted inside the upper fixing block 3, the upper mold 31 and the lower mold 21 form a complete mold hole 35, the mold hole 35 is used for injection molding of the workpiece, the upper surface of the lower mold 21 is movably fitted with the lower surface of the upper mold 31, and mold holes 35 are opened inside the lower mold 21 and on the surface of the upper mold 31.

[0025] Specifically, an injection port 33 is opened on the surface of the upper fixed block 3 , a guide tube 34 is fixedly connected inside the injection port 33 , a discharge port 36 is fixedly installed at one end of the guide tube 34 , and the discharge port 36 is fixedly connected to the inside of the mold hole 35 .

[0026] In the embodiment of the utility model, the injection port 33 and the guide tube 34 are arranged in cooperation so that the plastic liquid can be transported to the inside of the injection gap 38 through the discharge port 36 .

[0027] Specifically, a propulsion device 4 is fixedly installed on one side of the lower fixed block 2 . The propulsion device 4 includes a connecting block 41 . An injection head 46 is slidably connected inside the connecting block 41 . The injection head 46 is movably inserted inside the mold hole 35 .

[0028] In the embodiment of the present invention, the injection head 46 is inserted into the mold hole 35 to form an injection gap 38, so that the workpiece can be injection molded.

[0029] Specifically, the outer diameter of the injection head 46 is smaller than the inner diameter of the mold hole 35 , an injection gap 38 is formed between the injection head 46 and the mold hole 35 , and the discharge port 36 is fixedly connected to the inside of the injection gap 38 .

[0030] In the embodiment of the utility model, the shape of the injection molding gap 38 is consistent with the shape of the workpiece, and the injection molding is completed by connecting the discharge port 36 with the inside of the injection molding gap 38.

[0031] Specifically, a cylinder 42 is fixedly mounted on the surface of the connecting block 41 , a push rod 43 is drivingly connected to the output end of the cylinder 42 , a moving block 44 is fixedly mounted on the end of the push rod 43 , and an injection head 46 is fixedly mounted on the surface of the moving block 44 .

[0032] In the embodiment of the utility model, the injection head 46 can be inserted into the mold hole 35 by the arrangement of the cylinder 42 .

[0033] Specifically, a moving groove 45 is defined inside the connecting block 41 , and the moving block 44 is slidably connected inside the moving groove 45 .

[0034] In the embodiment of the present invention, the moving groove 45 makes the moving block 44 more stable when moving inside the connecting block 41 .

[0035] Specifically, a placement groove 37 is provided inside the upper fixing block 3 , a pressing block 32 is detachably installed inside the placement groove 37 , and a sleeve block 11 is fixedly installed inside the lower fixing block 2 , and the end of the sleeve block 11 is movably fitted with the bottom of the pressing block 32 .

[0036] In the embodiment of the utility model, the front end shape of the workpiece is injection molded by the cooperation between the pressing block 32 and the sleeve block 11.

[0037] Specifically, a plurality of positioning columns 12 are fixedly mounted on the surface of the bottom plate 1 , a plurality of positioning holes 23 are opened inside the lower fixing block 2 , and the positioning columns 12 are movably inserted inside the positioning holes 23 .

[0038] In the embodiment of the utility model, the lower fixing block 2 can be fixed on the surface of the bottom plate 1 by the cooperation between the positioning column 12 and the positioning hole 23, so as to ensure the accuracy during injection molding.

[0039] Specifically, screw holes 22 are formed around the bottom plate 1 , the lower fixing block 2 and the upper fixing block 3 , and bolts 39 are threadedly connected inside the screw holes 22 .

[0040] In the embodiment of the utility model, the bottom plate 1, the lower fixing block 2 and the upper fixing block 3 are connected to form a whole through the cooperation of the bolts 39 and the screw holes 22, so as to perform the injection molding work.

[0041] Specifically, the guide tube 34 is disposed on the side of the mold hole 35 , and the shape of the injection port 33 is an inverted cone.

[0042] In the embodiment of the utility model, side injection molding can better control the flow path of the plastic in the mold hole 35, which helps to achieve more uniform filling and cooling. The injection port 33 is set to an inverted cone to facilitate the flow of plastic liquid.

[0043] When in use, the bottom plate 1, the lower fixing block 2 and the upper fixing block 3 are connected to form a whole through the cooperation of the bolts 39 and the screw holes 22, and the upper mold 31 and the lower mold 21 form a complete mold hole 35. The cylinder 42 is started to allow the injection head 46 to be inserted into the mold hole 35. The outer diameter of the injection head 46 is smaller than the inner diameter of the mold hole 35 to form an injection gap 38. The discharge port 36 is connected to the injection gap 38, so that the plastic liquid can be transported to the injection gap 38 to complete the injection molding.

[0044] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An injection mold with uniform filling effect, comprising a base plate (1), characterized in that: A lower fixing block (2) is detachably mounted on the surface of the bottom plate (1), an upper fixing block (3) is detachably mounted on the surface of the lower fixing block (2), a lower mold (21) is fixedly mounted inside the lower fixing block (2), an upper mold (31) is fixedly mounted inside the upper fixing block (3), an upper surface of the lower mold (21) is movably fitted with a lower surface of the upper mold (31), and mold holes (35) are provided inside the lower mold (21) and on the surface of the upper mold (31).

2. An injection mold with uniform filling effect according to claim 1, characterized in that: An injection port (33) is provided on the surface of the upper fixed block (3), a guide tube (34) is fixedly connected to the inside of the injection port (33), a discharge port (36) is fixedly installed at one end of the guide tube (34), and the discharge port (36) is fixedly connected to the inside of the mold hole (35).

3. An injection mold with uniform filling effect according to claim 2, characterized in that: A propulsion device (4) is fixedly mounted on one side of the lower fixed block (2), the propulsion device (4) comprising a connection block (41), an injection head (46) being slidably connected inside the connection block (41), and the injection head (46) being movably inserted inside the mold hole (35).

4. An injection mold with uniform filling effect according to claim 3, characterized in that: The outer diameter of the injection head (46) is smaller than the inner diameter of the mold hole (35), an injection gap (38) is formed between the injection head (46) and the mold hole (35), and the discharge port (36) is fixedly connected to the inside of the injection gap (38).

5. The injection mold with uniform filling effect according to claim 3, characterized in that: A cylinder (42) is fixedly mounted on the surface of the connection block (41); a push rod (43) is drivingly connected to the output end of the cylinder (42); a moving block (44) is fixedly mounted on the end of the push rod (43); and the injection head (46) is fixedly mounted on the surface of the moving block (44).

6. An injection mold with uniform filling effect according to claim 5, characterized in that: A moving groove (45) is provided inside the connecting block (41), and the moving block (44) is slidably connected inside the moving groove (45).

7. The injection mold with uniform filling effect according to claim 1, characterized in that: The upper fixing block (3) has a placement groove (37) formed inside, a pressing block (32) is detachably mounted inside the placement groove (37), and a sleeve block (11) is fixedly mounted inside the lower fixing block (2), an end of the sleeve block (11) being movably fitted with the bottom of the pressing block (32).

8. The injection mold with uniform filling effect according to claim 1, characterized in that: A plurality of positioning columns (12) are fixedly mounted on the surface of the bottom plate (1), a plurality of positioning holes (23) are provided inside the lower fixing block (2), and the positioning columns (12) are movably inserted inside the positioning holes (23).

9. The injection mold with uniform filling effect according to claim 1, characterized in that: The bottom plate (1), the lower fixing block (2) and the upper fixing block (3) are all provided with screw holes (22) on their peripheries, and the screw holes (22) are internally threadedly connected with bolts (39).

10. The injection mold with uniform filling effect according to claim 2, characterized in that: The guide tube (34) is arranged on the side of the mold hole (35), and the shape of the injection port (33) is an inverted cone.

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