Injection mold runner structure and injection mold

Abstract

The utility model provides an injection mold runner structure and an injection mold, and relates to the technical field of injection molds, the injection mold runner structure and the injection mold comprise an upper mold, a cavity is arranged on a bottom mold, and electric push rods are arranged on two symmetrical side surfaces of the bottom mold; an isolation plate is installed at the output end of each electric push rod, the isolation plates are located in the mold cavity and are in sliding connection with the mold cavity, and the direction of the output ends of the electric push rods is parallel to the length direction of the mold cavity; an electric push rod drives a partition plate to move, the length of a cavity used for forming can be changed, the length of a mold core of the injection mold can be adjusted by selecting a proper number of third mold core plates and adjusting the positions of the first mold core plate and the second mold core plate, and therefore the injection mold can be used for producing rectangular basins with large lengths, and the production efficiency is improved. And the application range of the injection mold is expanded, and the practicability of the injection mold is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold flow channel structure and an injection mold. Background Technology

[0002] Injection molds are tools used for molding plastics. Their working principle is based on the fluidity of plastics under high temperature and pressure. The injection molding machine heats plastic granules to a molten state and then injects them at high speed into the mold cavity through a screw. In the cavity, the molten plastic cools and solidifies, forming a plastic product that conforms to the shape of the cavity. After the plastic product cools and sets, the mold opens, and the product is ejected from the cavity by an ejector device, completing one injection molding cycle.

[0003] Traditional injection molds are mostly fixed-size structures, with specific dimensions for their cavities and cores. Within the same product series, different sizes may be required to meet different usage scenarios. For example, rectangular basins are generally available in various lengths on the market, but fixed-size injection molds can only produce rectangular basins of specific lengths, thus reducing the practicality of injection molds. Utility Model Content

[0004] The purpose of this invention is to provide an injection mold flow channel structure and an injection mold, aiming to solve the problems in the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides an injection mold runner structure, comprising:

[0006] Bottom mold;

[0007] A cavity is provided on the bottom mold, and two partition plates that move along the length of the cavity are provided inside the cavity;

[0008] Two electric push rods are respectively installed on two symmetrical sides of the bottom mold. The output end of the electric push rod is connected to the isolation plate, and the electric push rod and the isolation plate correspond one-to-one.

[0009] The upper mold is positioned above the lower mold;

[0010] A core plate is disposed on the upper mold, and the core plate moves along the length direction of the upper mold;

[0011] Core plate two is disposed on the upper mold, and core plate two moves along the length direction of the upper mold;

[0012] A core assembly is disposed between core plate one and core plate two. The overall length of the core assembly is adjustable. The core assembly is used to form a core with core plate one and core plate two.

[0013] Two positioning components are disposed between the core plate and the upper mold, and the positioning components are used to fix the core plate.

[0014] Two positioning components are arranged between the core plate and the upper mold. The positioning components are used to fix the core plate. The positioning components have the same structure as the positioning components.

[0015] Preferably, both positioning component one and positioning component two include a positioning block, a positioning threaded rod, a positioning nut, an adjusting groove, and a limiting groove. The positioning block on positioning component one is connected to core plate one, and the positioning block on positioning component two is connected to core plate two. The positioning threaded rod is connected to the positioning block, and the positioning nut is threadedly connected to the positioning threaded rod. The adjusting groove is located on the bottom side of the upper mold, and the positioning block is located inside the adjusting groove and slidably connected to the adjusting groove. The limiting groove is located on one side of the upper mold and communicates with the adjusting groove. The positioning threaded rod passes through the inside of the limiting groove and slidably connects to the limiting groove.

[0016] Preferably, the core assembly includes a core plate three, a connecting block one, and a core plate fixing assembly. There are multiple core plates three, and each core plate three has a connecting slot one on one side. There are multiple connecting blocks one, and the connecting blocks one is installed on the side of the core plate three away from the connecting slot one. The connecting blocks one correspond one-to-one with the core plates three, and the positions of the connecting blocks one and the connecting slots one are corresponding. The sizes of the connecting blocks one and the connecting slots one are adapted to each other. The core plate fixing assembly is disposed between the upper mold and the core plate three, and the core plate fixing assembly is used to connect the core plate three and the upper mold.

[0017] Preferably, the core plate fixing assembly includes fixing holes, guide grooves, fixing springs, sliders, and fixing rods. There are multiple fixing holes evenly distributed on one side of the core plate. The guide groove is located on one side of the core plate, and its length direction is perpendicular to the length direction of the core plate. The fixing spring is connected to the inner wall of the guide groove. The slider is connected to the end of the fixing spring and is slidably connected to the guide groove. The fixing rod is connected to the slider, penetrates the core plate, and is slidably connected to it. The fixing rod is inserted into the fixing hole.

[0018] Preferably, a connecting slot 2 is provided on one side of the core plate 1, the connecting slot 2 is adapted to the size of the connecting block 1, and a connecting block 2 is fixedly connected to one side of the core plate 2, the connecting block 2 being adapted to the size of the connecting slot 1.

[0019] An injection mold runner structure includes a main runner connected to an upper mold, two secondary runners connected to the main runner, metal telescopic hoses connected to the ends of the two secondary runners, and injection ports fixedly connected to the ends of the two metal telescopic hoses away from the secondary runners.

[0020] Preferably, the bottom side of the upper mold has two storage cavities, and the metal telescopic hose is located inside the storage cavity.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. By moving the partition plate through the electric push rod, the length of the cavity used for molding can be changed. By selecting an appropriate number of core plates and adjusting the positions of core plate one and core plate two, the length of the injection mold core can be adjusted, thereby enabling the injection mold to produce rectangular basins of a greater length, expanding the application range of the injection mold and improving its practicality.

[0023] 2. By setting up connecting slot one, connecting block one, core plate fixing component, connecting slot two, and connecting block one, the operation of adjusting the length of the core component is made easier, and the operation of installing and disassembling core plate three is also made easier. The connection operation of core plate one, core plate two, upper mold and core component is also made easier, thereby improving the efficiency of assembling the injection mold. Attached Figure Description

[0024] Figure 1 This is a first-view structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the upper mold of this utility model;

[0027] Figure 4 This is a cross-sectional structural diagram of the upper mold of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the bottom mold of this utility model;

[0029] Figure 6 This is a schematic diagram of the flow channel structure of the injection mold of this utility model;

[0030] Figure 7 This is a structural schematic diagram of the core plate three of this utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the second core plate of this utility model;

[0032] Figure 9This is a schematic diagram of the structure of the core plate of this utility model.

[0033] In the diagram: 10. Bottom mold; 11. Cavity; 12. Electric push rod; 13. Isolation plate; 20. Upper mold; 201. Adjustment groove; 202. Limiting groove; 203. Fixing hole; 204. Storage cavity; 21. Core plate one; 211. Connecting slot two; 22. Core plate two; 23. Core plate three; 231. Connecting slot one; 232. Guide groove; 24. Connecting block one; 25. Fixing spring; 26. Slider; 27. Fixing rod; 28. Connecting block two; 40. Positioning block; 41. Positioning threaded rod; 42. Positioning nut; 50. Main runner; 51. Secondary runner; 52. Metal telescopic hose; 53. Injection port. Detailed Implementation

[0034] The present invention will now be further described with reference to the accompanying drawings.

[0035] like Figures 1 to 9 As shown, an injection mold includes a bottom mold 10 and an upper mold 20. The bottom mold 10 has a cavity 11. Electric push rods 12 are mounted on two symmetrical sides of the bottom mold 10. Each electric push rod 12 has an isolation plate 13 mounted at its output end. The isolation plate 13 is located inside the cavity 11 and is slidably connected to the cavity 11. The output direction of the electric push rod 12 is parallel to the length direction of the cavity 11. The upper mold 20 has a core plate 21 that can move along the length direction of the upper mold 20. An adjustable-length core assembly is provided between the core plate 1 21 and the core plate 22. The core assembly is used to form a core with the core plate 1 21 and the core plate 22. Two positioning components 1 are provided between the core plate 1 21 and the upper mold 20. The positioning components 1 are used to fix the core plate 1 21. Two positioning components 2 are provided between the core plate 22 and the upper mold 20. The positioning components 2 are used to fix the core plate 22. The positioning components 2 have the same structure as the positioning components 1.

[0036] Before injection molding, the core plate 21 is first adjusted to a suitable position and fixed by the positioning component 1. Then, the core assembly is connected to the core plate 21. Next, the position of the core plate 22 is adjusted so that it fits tightly against the core assembly and is connected together. Finally, the positioning component 2 is used to fix the core plate 22, thus completing the adjustment of the core length of the injection mold. The position of the partition plate 13 is adjusted by the electric push rod 12 so that the core plate 21, core plate 22 and core assembly enter the cavity 11 and are located between the two partition plates 13. Then, the injection molding operation can be performed, making the length of the injection molded product adjustable and expanding the application range of the injection mold.

[0037] Both positioning components one and positioning components two include positioning blocks 40 connected to core plate one 21 and core plate two 22. A positioning threaded rod 41 is fixedly connected to one side of the positioning block 40. A positioning nut 42 is threadedly connected to the outer surface of the positioning threaded rod 41. An adjusting slide groove 201 is provided on the bottom side of the upper mold 20. The length direction of the adjusting slide groove 201 is perpendicular to the length direction of the core plate one 21. The positioning block 40 is located inside the adjusting slide groove 201 and is slidably connected to the adjusting slide groove 201. A limiting groove 202 is provided on one side of the upper mold 20 and is connected to the adjusting slide groove 201. The positioning threaded rod 41 passes through the inside of the limiting groove 202 and is slidably connected to the limiting groove 202.

[0038] Before injection molding, the core plate 1 21 or core plate 22 is moved to move the positioning block 40. At this time, the positioning block 40 moves the positioning threaded rod 41 and the positioning nut 42. The distance between the core plate 1 21 or core plate 22 is adjusted to a suitable distance according to the length of the rectangular basin to be produced. Then, the positioning nut 42 is rotated to make it fit tightly with the upper mold 20, thereby fixing the core plate 1 21 or core plate 22 in a suitable position, making the operation of adjusting the position of the core plate 1 21 or core plate 22 relatively simple.

[0039] The core assembly includes multiple core plates 23. Each core plate 23 has a connecting slot 231 on one side. The length direction of the connecting slot 231 is parallel to the length direction of the core plate 23. Each core plate 23 has a connecting block 24 fixedly connected to the side away from the connecting slot 231. The length direction of the connecting block 24 is parallel to the length direction of the core plate 23. Both the connecting block 24 and the connecting slot 231 are rectangular in shape. The positions of the connecting block 24 and the connecting slot 231 correspond, and the sizes of the connecting block 24 and the connecting slot 231 are compatible. A core plate fixing assembly is provided between the upper mold 20 and the core plate 23. The core plate fixing assembly is used to connect the core plate 23 and the upper mold 20.

[0040] The core plate fixing assembly includes multiple fixing holes 203 formed on the bottom side of the upper mold 20 and a guide groove 232 formed on the core plate 23. The multiple fixing holes 203 are evenly arranged along the length direction of the upper mold 20. The length direction of the guide groove 232 is perpendicular to the length direction of the core plate 23. A fixing spring 25 is fixedly connected to the inner wall of the guide groove 232. A slider 26 that is slidably connected to the guide groove 232 is fixedly connected to the end of the fixing spring 25. A fixing rod 27 is fixedly connected to the side of the slider 26 near the fixing spring 25. The fixing rod 27 passes through the core plate 23 and is slidably connected to the core plate 23. The fixing rod 27 is inserted into the interior of the fixing hole 203. The size of the fixing rod 27 is adapted to the fixing hole 203.

[0041] When fixing the core plate 23, firstly, the slider 26 moves the fixing rod 27 and retracts it into the guide groove 232. At this time, the fixing spring 25 is in a stretched state. After the core plate 23 is connected to the core plate 21 or the core plate 23, the fixing rod 27 corresponds to the position of a fixing hole 203. Then, the slider 26 is slowly released, and the fixing rod 27 is inserted into the fixing hole 203 under the action of the fixing spring 25, thus completing the fixing operation of the core plate 23. This makes the operation of fixing the core plate 23 relatively simple.

[0042] A connecting slot 211 is provided on one side of the core plate 21. The connecting slot 211 is adapted to the size of the connecting block 24. A connecting block 28 is fixedly connected to one side of the core plate 22. The connecting block 28 is adapted to the size of the connecting slot 231.

[0043] After adjusting the core plate 21 to the appropriate position, firstly, the connecting clip 24 on one core plate 23 is engaged into the connecting slot 211 on the core plate 21. Then, the core plate 23 is fixed by the core plate fixing assembly, thereby connecting one core plate 23 to the core plate 21. Next, the connecting clip 24 on one core plate 23 is engaged into the connecting slot 231 on the other core plate 23. The core plate is then fixed by the core plate fixing assembly. The core plate 23 is fixed, thereby connecting two adjacent core plates 23. The appropriate number of core plates 23 are selected according to the actual situation of use and the connection operation is performed. Finally, the position of the core plate 22 is adjusted and the connecting block 28 on the core plate 22 is inserted into the connecting slot 231 on the core plate 23 located at the edge. The core of the injection mold is formed by the core plate 21, multiple core plates 22 and core plates 23, thereby adjusting the length of the injection mold core.

[0044] An injection mold runner structure includes a main runner 50 connected to an upper mold 20, two secondary runners 51 connected to the main runner 50, and metal telescopic hoses 52 connected to the ends of the two secondary runners 51. An injection port 53 is fixedly connected to the end of each of the two metal telescopic hoses 52 away from the secondary runners 51. One injection port 53 penetrates through a core plate 21 and is connected to the core plate 21, and the other injection port 53 penetrates through a second core plate 22 and is connected to the second core plate 22.

[0045] Before injection molding, the injection port 53 moves with the movement of the core plate 1 21 or the core plate 22. At this time, the metal telescopic hose 52 will be extended or stretched. During injection molding, the liquid raw material enters the interior of the two secondary flow channels 51 through the main flow channel 50, and is injected into the interior of the cavity 11 through the two secondary flow channels 51, the two metal telescopic hoses 52 and the two injection ports 53 for injection molding.

[0046] It should be noted that the secondary flow channel 51 consists of an inclined section, a horizontal section, and a transition section. The inclined section is inclined downwards, the horizontal section is parallel to the length direction of the upper mold 20, and the transition section is arc-shaped, which is used to connect the inclined section and the horizontal section.

[0047] The bottom side of the upper mold 20 has two storage cavities 204, and the metal telescopic hose 52 is located inside the storage cavity 204. The storage cavity 204 is used to store the metal telescopic hose 52.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An injection mold characterized in that, The utility model relates to a bottom die (10) and cavity (11) are provided on the bottom die (10), the inside of cavity (11) is provided with two isolation plates (13) along the length direction of cavity (11) moves, two electric push rods (12) are installed on the two symmetrical sides of bottom die (10) respectively, the output end of electric push rod (12) is connected with isolation plate (13), and electric push rod (12) is one to one with isolation plate (13), upper die (20) is provided above bottom die (10), core plate no. (21) is provided on upper die (20), and core plate no. (21) moves along the length direction of upper die (20), core plate no. (22) is provided on upper die (20), and core plate no. (22) moves along the length direction of upper die (20), core assembly is provided between core plate no. (21) and core plate no. (22), and the overall length of core assembly is adjustable, and core assembly is used to form core with core plate no. (21) and core plate no. (22), two positioning assemblies no. (1) are provided between core plate no.

2. An injection mold according to claim 1, characterized in that: (21) and upper die (20), and positioning assembly no. (1) is used to fix core plate no. (21), two positioning assemblies no. (2) are provided between core plate no. (22) and upper die (20), and positioning assembly no. (2) is used to fix core plate no. (22), and positioning assembly no. (1) and positioning assembly no. (2) are same in structure. Positioning assembly no. (1) and positioning assembly no. (2) all include positioning block (40), positioning threaded rod (41), positioning nut (42), adjusting sliding slot (201) and limiting groove (202), the positioning block (40) the positioning block (40) on positioning assembly no. (1) is connected with core plate no. (21), and the positioning block (40) on positioning assembly no. (2) is connected with core plate no. (22), positioning threaded rod (41) is connected with positioning block (40), positioning nut (42) is connected with positioning threaded rod (41) in screw thread, adjusting sliding slot (201) is set up in the bottom side of upper die (20), positioning block (40) is located in the inside of adjusting sliding slot (201) and is connected with adjusting sliding slot (201) slidingly, limiting groove (202) is set up in one side of upper die (20), limiting groove (202) is connected with adjusting sliding slot (201), and positioning threaded rod (41) passes through from the inside of limiting groove (202) and is connected with limiting groove (202) slidingly.

3. An injection mold according to claim 2, characterized in that: The core assembly includes core plate three (23), connecting block one (24) and core plate fixing assembly, the number of core plate three (23) is multiple, one side of each core plate three (23) is provided with connecting groove one (231), the number of connecting block one (24) is multiple, connecting block one (24) is installed on the side of core plate three (23) away from connecting groove one (231), connecting block one (24) corresponds to core plate three (23), the position of connecting block one (24) corresponds to connecting groove one (231), the size of connecting block one (24) is adapted to connecting groove one (231), the core plate fixing assembly is arranged between the upper die (20) and core plate three (23), and the core plate fixing assembly is used to connect core plate three (23) and the upper die (20).

4. An injection mold according to claim 3, characterized in that: The core plate fixing assembly includes fixing hole (203), guide groove (232), fixing spring (25), sliding block (26) and fixing plug (27), the number of fixing hole (203) is multiple, multiple fixing holes (203) are evenly arranged on the side of core plate three (23), the guide groove (232) is arranged on the side of core plate three (23), the length direction of the guide groove (232) is perpendicular to the length direction of core plate three (23), the fixing spring (25) is connected with the inner wall of the guide groove (232), the sliding block (26) is connected with the end of the fixing spring (25), and the sliding block (26) is connected with the guide groove (232) in a sliding mode, the fixing plug (27) is connected with the sliding block (26), the fixing plug (27) penetrates through core plate three (23) and is connected with core plate three (23) in a sliding mode, and the fixing plug (27) is inserted into the inside of the fixing hole (203).

5. An injection mold according to claim 4, characterized in that: One side of the core plate one (21) is provided with connecting groove two (211), the size of the connecting groove two (211) is adapted to the connecting block one (24), and one side of the core plate two (22) is fixedly connected with the connecting block two (28).

6. A flow channel structure of an injection mold, applied to the injection mold of claim 5, characterized in that: The main flow channel (50) is connected with two auxiliary flow channels (51), and the end of the two auxiliary flow channels (51) is connected with a metal telescopic hose (52).

7. A flow channel structure for an injection mold according to claim 6, wherein: The bottom side of the upper die (20) is provided with two accommodation cavities (204), and the metal telescopic hose (52) is located in the accommodation cavity (204).

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