Adjustable injection mold runner structure

Abstract

The utility model relates to an adjustable injection mold runner structure, and relates to the technical field of injection molding. The injection mold comprises a lower mounting table and an upper mounting table, the circumferential inner walls of the lower mounting table and the upper mounting table are fixedly connected with a lower connecting column and an upper connecting column respectively, the upper ends and the lower ends of the lower connecting column and the upper connecting column are fixedly connected with a lower injection mold and an upper injection mold respectively, and the lower end of the upper connecting column is provided with a discharging hole. The upper end of the upper mounting table is provided with an injection molding opening, the circumferential inner wall of the injection molding opening is provided with a first injection molding runner and a second injection molding runner, the first injection molding runner and the second injection molding runner both communicate with the discharging hole, and the lower connecting column is internally provided with two sliding grooves; and the flow speed in the second injection molding runner and the first injection molding runner is adjusted more finely through movement of the blocking block, and the flow of the runners during injection molding can be better controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an adjustable injection mold flow channel structure. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into complex-shaped parts. Injection molding is suitable for mass production and complex-shaped products and other molding and processing fields.

[0003] Publication No. CN207105481 U A cold runner regulating mechanism for an injection mold, belonging to the field of mold technology, is used to adjust the flow of the cold runner, including a first regulating insert arranged on the mold, a first stroke regulating hole arranged on the first regulating insert, and a first slide groove arranged on the mold for accommodating the first regulating insert and slidingly cooperating with the first regulating insert, the first slide groove is connected to the cold runner, the first slide groove is provided with a first fastening screw for fixing the first regulating block, and the first fastening screw is arranged in the first stroke regulating hole. The cold runner regulating mechanism for an injection mold provided by the utility model has a simple structure, is easy to adjust, saves operation time, does not damage the mold and is conducive to improving work efficiency;

[0004] In the injection molding process of plastic production, injection molding is generally performed through one or more flow channels into the injection mold, and the flow rate of the flow channel is adjusted by a flow control device. However, the above-mentioned multiple flow channels generally have the same diameter, and the flow rate of the injection material is roughly the same. The control effect of the flow control device is not refined enough, and the control effect is not enough. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an adjustable injection mold runner structure, which has runners of different diameters. According to product requirements, the flow rate of the injection material can be controlled as a whole, and detailed flow control can be performed to improve the control effect of the injection flow rate.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] The cam is provided with a plurality of connecting rods, each of which has a plurality of connecting rods, each of which has a plurality of connecting rods, each of which has a plurality of connecting rods, each of which has a plurality of connecting rods, each of which has a plurality of connecting rods. The cam is provided with a plurality of connecting rods, each of which has a plurality of connecting rods, each of which has a plurality of connecting rods.

[0008] By adopting the above technical scheme, the first injection runner, the second injection runner, the feed hole, the sliding groove, and the block are matched to set two runners with different diameters. According to the injection molding requirements, a runner with a larger diameter or a smaller diameter can be selected to control the overall falling speed of the injection molding material. The flow rate in the second injection runner and the first injection runner can be more finely adjusted through the movement of the block, which can better control the flow rate of the runner during injection molding.

[0009] In a preferred example, the utility model can be further configured as follows: each group of the adjustment mechanism includes a bolt and two springs, the two springs are fixedly connected to the upper end of the block, and the upper ends of the two springs are fixed to the inner top wall of the sliding groove, the bolt is arranged at the upper end of the lower mounting platform, and the bolt thread passes through the inner top wall of the sliding groove and abuts against the upper end of the block.

[0010] By adopting the above technical solution, the regulating mechanism can drive the block to move up and down, thereby realizing whether the second injection molding runner and the first injection molding runner pass the injection molding material, and can also adjust the flow rate of the first injection molding runner and the second injection molding runner.

[0011] In a preferred example, the utility model can be further configured as follows: each group of the adjustment mechanism also includes two sliding rods, the two sliding rods are fixedly connected between the inner top wall and the inner bottom wall of the sliding groove, and the blocking block is slidably connected to the circumferential sides of the two sliding rods.

[0012] By adopting the above technical solution, the sliding rod and the blocking block are slidably matched, which can improve the movement stability of the blocking block.

[0013] In a preferred example, the utility model can be further configured as follows: the upper ends of the two bolts are fixedly connected with connecting rods, the upper end of the lower mounting platform is fixedly connected with two indicating rods, and the two ends of the two indicating rods are respectively in contact with the circumferential sides of the two connecting rods.

[0014] By adopting the above technical solution, the surface of the connecting rod can be provided with scales, and when the bolt moves downward, the moving distance of the block can be seen.

[0015] In a preferred example, the utility model can be further configured as follows: a cross groove is provided at the upper ends of the two connecting rods, a cross block is provided in each of the two cross grooves, and a rotating knob is fixedly connected to the upper ends of the two cross blocks.

[0016] By adopting the above technical solution, the cross groove, the cross block and the rotating knob cooperate to facilitate the rotation of the bolt.

[0017] In a preferred example, the utility model can be further configured as follows: sealing rings are sleeved on the circumferential sides of the two bolts, and a plurality of anti-slip grooves are opened on the circumferential sides of the two rotating knobs.

[0018] By adopting the above technical solution, the sealing performance of the sealing ring can be improved.

[0019] In a preferred example, the utility model can be further configured as follows: a feeding pipe is fixedly connected to the upper end of the upper mounting platform, a transfer pipe is rotatably connected to the upper end of the feeding pipe, and a threaded groove is provided on the circumferential inner wall of the transfer pipe.

[0020] By adopting the above technical solution, the feeding pipe, the transfer pipe and the threaded groove cooperate to connect the injection molding pipeline.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects:

[0022] 1. A lower mounting platform, a lower connecting column, an upper mounting platform, a lower injection mold, an upper injection mold, an upper connecting column, a first injection runner, a second injection runner, a feed hole, a sliding groove and a block are provided. The inner diameters of the first injection runner and the second injection runner are different, one having a larger diameter and the other having a smaller diameter. Two runners with different diameters can be provided. A runner with a larger diameter or a smaller diameter can be selected according to the injection molding requirements, so as to control the overall falling speed of the injection molding material. The block slides up and down in the sliding groove. The block can block the second injection runner and the first injection runner as a whole, or block a part to control the flow rate. The flow rate in the second injection runner and the first injection runner can be more finely adjusted by moving the block, so as to better control the flow rate of the runner during injection molding.

[0023] 2. An adjusting mechanism, a connecting rod, a cross slot and a rotating knob are provided. The cross slot is inserted into the cross block, and the rotating knob is turned. The rotating knob can drive the bolt to move. The length of the bolt in the block becomes longer and longer, and the spring is in a stretched state. The block moves to block the first injection runner and the second injection runner, thereby controlling the flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a stereogram of this embodiment;

[0025] Figure 2 is a first stereoscopic cross-sectional view of the present embodiment;

[0026] Figure 3 This embodiment Figure 2 A partial enlarged view of the middle A;

[0027] Figure 4 is a second stereoscopic cross-sectional view of the present embodiment;

[0028] Figure 5 This embodiment Figure 4 A partial enlarged view of point B in the middle.

[0029] In the figure, 1, lower mounting platform; 2, lower connecting column; 3, upper mounting platform; 4, lower injection mold; 5, upper injection mold; 6, indicator rod; 7, first injection flow channel; 8, second injection flow channel; 9, injection port; 10, feeding pipe; 11, adjustment mechanism; 1101, bolt; 1102, spring; 1103, slide rod; 12, connecting rod; 13, rotating knob; 14, cross groove; 15, sealing ring; 16, transfer tube; 17, threaded groove; 18, upper connecting column; 19, feed hole; 20, sliding groove; 21, blocking block; 22, cross block; 23, anti-slip groove. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Example:

[0032] Reference Figure 1-5The utility model discloses an adjustable injection mold flow channel structure, including a lower mounting platform 1 and an upper mounting platform 3, the circumferential inner walls of the lower mounting platform 1 and the upper mounting platform 3 are respectively fixedly connected with a lower connecting column 2 and an upper connecting column 18, the upper ends and lower ends of the lower connecting column 2 and the upper connecting column 18 are respectively fixedly connected with a lower injection mold 4 and an upper injection mold 5, preferably in this solution, the shape of the lower injection mold 4 and the upper injection mold 5 is circular, and a hollow sphere can be formed after injection molding. Taking this as an example, If the hollow spheres of the same color are directly injection molded, a large diameter flow channel can be used. If the upper part of the sphere needs injection molding materials of other colors, a small diameter flow channel can be used. The flow rate is slowed down and the control effect is better to prevent a large amount of injection molding materials from flowing directly downward. A discharge hole 19 is opened at the lower end of the upper connecting column 18, and the discharge hole 19 is connected to the circumferential inner wall of the upper injection mold 5. An injection port 9 is opened at the upper end of the upper mounting platform 3. The circumferential inner wall of the injection port 9 is opened with a first injection flow channel 7 and a second injection flow channel 7. Injection molding runner 8, the first injection molding runner 7 and the second injection molding runner 8 are both connected with the discharge hole 19, two sliding grooves 20 are provided in the lower connecting column 2, and a block 21 is slidably connected between the side walls of the two sliding grooves 20, and the two block blocks 21 are provided with an adjusting mechanism 11, and the two groups of adjusting mechanisms 11 are connected with the upper mounting platform 3 to realize the up and down movement of the block blocks 21. The inner diameters of the first injection molding runner 7 and the second injection molding runner 8 are different, one has a large diameter and the other has a small diameter. Two runners with different diameters are set, and a runner with a larger diameter or a smaller diameter can be selected according to the injection molding requirements, so as to control the overall falling speed of the injection molding material. The block block 21 slides up and down in the sliding groove 20, and the block block 21 can block the second injection molding runner 8 and the first injection molding runner 7 as a whole, or block a little to control the flow rate, and the flow rate in the second injection molding runner 8 and the first injection molding runner 7 can be more finely adjusted by moving the block block 21, so as to better control the flow rate of the runner during injection molding.

[0033] Each set of adjustment mechanisms 11 includes a bolt 1101 and two springs 1102. The two springs 1102 are fixedly connected to the upper end of the block 21, and the upper ends of the two springs 1102 are fixed to the inner top wall of the sliding groove 20. The bolt 1101 is arranged at the upper end of the lower mounting platform 1, and the bolt 1101 thread penetrates the inner top wall of the sliding groove 20 and abuts against the upper end of the block 21. The cross slot 14 is inserted into the cross block 22, and the rotating button 13 is turned. The rotating button 13 can drive the bolt 1101 to move. The length of the bolt 1101 in the block 21 becomes longer and longer, and the spring 1102 is in a stretched state. The block 21 moves to block the first injection channel 7 and the second injection channel 8, thereby controlling the flow.

[0034] Each set of adjustment mechanisms 11 also includes two sliding rods 1103, and the two sliding rods 1103 are fixedly connected between the inner top wall and the inner bottom wall of the sliding groove 20. The blocking block 21 is slidably connected to the circumferential sides of the two sliding rods 1103. The sliding cooperation between the sliding rod 1103 and the blocking block 21 can improve the movement stability of the blocking block 21.

[0035] The upper ends of the two bolts 1101 are fixedly connected to a connecting rod 12, and the upper end of the lower mounting platform 1 is fixedly connected to two indicator rods 6. The two ends of the two indicator rods 6 are respectively in contact with the circumferential sides of the two connecting rods 12. The surface of the connecting rod 12 can be provided with a scale. When the bolt 1101 moves downward, the moving distance of the block 21 can be seen.

[0036] A cross slot 14 is provided at the upper end of the two connecting rods 12, and a cross block 22 is provided in each of the two cross slots 14. The upper ends of the two cross blocks 22 are fixedly connected with a rotating knob 13. The cross slot 14, the cross block 22 and the rotating knob 13 cooperate to facilitate the rotation of the bolt 1101.

[0037] The circumferential sides of the two bolts 1101 are sleeved with sealing rings 15, and the circumferential sides of the two rotating knobs 13 are provided with a plurality of anti-slip grooves 23. The sealing rings 15 can improve the sealing performance.

[0038] The upper end of the upper mounting platform 3 is fixedly connected with a feeding pipe 10, and the upper end of the feeding pipe 10 is rotatably connected with a transfer pipe 16. The circumferential inner wall of the transfer pipe 16 is provided with a threaded groove 17. The feeding pipe 10, the transfer pipe 16 and the threaded groove 17 cooperate to connect the injection molding pipeline.

[0039] The implementation principle of the above embodiment is: the inner diameters of the first injection molding runner 7 and the second injection molding runner 8 are different, one has a larger diameter and the other has a smaller diameter. Two runners with different diameters are set. According to the injection molding requirements, a runner with a larger diameter or a smaller diameter can be selected to control the overall falling speed of the injection molding material. The block 21 slides up and down in the sliding groove 20. The block 21 can block the second injection molding runner 8 and the first injection molding runner 7 as a whole, or block a part to control the flow rate. The flow rate in the second injection molding runner 8 and the first injection molding runner 7 can be more finely adjusted by moving the block 21, and the flow rate of the runner during injection molding can be better controlled.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable injection mold runner structure, comprising a lower mounting platform (1) and an upper mounting platform (3), characterized in that: The circumferential inner walls of the lower mounting platform (1) and the upper mounting platform (3) are respectively fixedly connected with a lower connecting column (2) and an upper connecting column (18); the upper ends and lower ends of the lower connecting column (2) and the upper connecting column (18) are respectively fixedly connected with a lower injection mold (4) and an upper injection mold (5); a discharge hole (19) is provided at the lower end of the upper connecting column (18), and the discharge hole (19) is communicated with the circumferential inner wall of the upper injection mold (5); an injection port (9) is provided at the upper end of the upper mounting platform (3); and the injection port (9) A first injection channel (7) and a second injection channel (8) are provided on the circumferential inner wall, and the first injection channel (7) and the second injection channel (8) are both connected to the feed hole (19). Two sliding grooves (20) are provided in the lower connecting column (2), and a block (21) is slidably connected between the side walls of the two sliding grooves (20). Adjustment mechanisms (11) are provided on the two block blocks (21), and the two groups of adjustment mechanisms (11) are connected to the upper mounting platform (3) to realize the up and down movement of the block blocks (21).

2. The adjustable injection mold runner structure according to claim 1, characterized in that: Each set of the adjustment mechanism (11) comprises a bolt (1101) and two springs (1102), the two springs (1102) are fixedly connected to the upper end of the block (21), and the upper ends of the two springs (1102) are fixed to the inner top wall of the sliding groove (20), the bolt (1101) is arranged at the upper end of the lower mounting platform (1), and the bolt (1101) thread passes through the inner top wall of the sliding groove (20) and abuts against the upper end of the block (21).

3. The adjustable injection mold runner structure according to claim 2, characterized in that: Each group of the adjustment mechanism (11) further includes two sliding rods (1103), and the two sliding rods (1103) are fixedly connected between the inner top wall and the inner bottom wall of the sliding groove (20), and the blocking block (21) is slidably connected to the circumferential sides of the two sliding rods (1103).

4. The adjustable injection mold runner structure according to claim 2, characterized in that: The upper ends of the two bolts (1101) are fixedly connected to a connecting rod (12), and the upper end of the lower mounting platform (1) is fixedly connected to two indicating rods (6), and the two ends of the two indicating rods (6) are respectively in contact with the circumferential sides of the two connecting rods (12).

5. The adjustable injection mold runner structure according to claim 4, characterized in that: The upper ends of the two connecting rods (12) are each provided with a cross groove (14), a cross block (22) is disposed in each of the two cross grooves (14), and the upper ends of the two cross blocks (22) are each fixedly connected with a rotating knob (13).

6. The adjustable injection mold runner structure according to claim 5, characterized in that: The circumferential sides of the two bolts (1101) are both sleeved with sealing rings (15), and the circumferential sides of the two rotating knobs (13) are both provided with a plurality of anti-slip grooves (23).

7. The adjustable injection mold runner structure according to claim 1, characterized in that: The upper end of the upper mounting platform (3) is fixedly connected to a feeding pipe (10), and the upper end of the feeding pipe (10) is rotatably connected to a transfer pipe (16), and a threaded groove (17) is provided on the circumferential inner wall of the transfer pipe (16).

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