Mold structure with middle vacuum application

Abstract

The utility model relates to a kind of die structures with middle vacuum extraction, including upper die frame and lower die frame, upper die core and lower die core are installed in upper and lower stack between upper die frame and lower die frame, two lower die cavities are arranged in parallel on the upper end of lower die core, and collection groove is arranged between the upper end of lower die core between two lower die cavities, a connecting channel is arranged between the end of each lower die cavity and collection groove, upper die core lower end is provided with upper die cavity corresponding to lower die cavity one by one, upper die cavity and lower die cavity are spliced to form cavity, vertically arranged vacuum extraction column is installed in the inside of upper die core, the lower end of vacuum extraction column has airway layer and honeycomb layer sequentially arranged from top to bottom, spiral coil is arranged as disc in the inside of airway layer, honeycomb layer is made of air-permeable steel material, vertically arranged airway connected with lower airway is arranged in the inside of vacuum extraction column. The utility model not only greatly shortens the distance between the basic position of vacuum extraction and cavity, effectively reduces energy consumption, and ensures that the effect of vacuum extraction is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould forming technical field, in particular to a mould structure of application middle part vacuumizing. BACKGROUND

[0002] When traditional mould is in forming complex spare, gas in cavity is difficult to discharge completely, and it is easy to cause product to appear blowhole, filling shortage and other defects. SUMMARY

[0003] The utility model provides a mould structure of application middle part vacuumizing, the collection groove is arranged on the lower mould core upper end and is located between two lower mould cavities, the honeycomb layer of vacuumizing column lower part inserts into the collection groove, and the collection groove is the basic position of vacuumizing, directly carries out vacuumizing from the middle part position of mould, not only greatly shortens the distance between the vacuumizing basic position and cavity, effectively reduces energy consumption, and guarantees that the effect of vacuumizing is better, the lower gas passage is spiral coiled into disc shape, so that there is more contact space between the lower gas passage and honeycomb layer, can improve the efficiency of vacuumizing, and improves the suction effect.

[0004] The utility model discloses a mould structure of application middle part vacuumizing, including upper mould frame and lower mould frame, the upper mould frame and lower mould frame between installation have upper and lower stack's upper mould core and lower mould core, the lower mould core upper end parallelly arranged has two lower mould cavities, and the lower mould core upper end is located between two lower mould cavities and is provided with collection groove, the collection groove with every lower mould cavity's end is all provided with a connecting channel, the upper mould core lower end is provided with with lower mould cavity one to one corresponding upper mould cavity, and the upper mould cavity and lower mould cavity splice and form cavity, the inside installation of upper mould core has the vertical arrangement vacuumizing column, and the lower end of this vacuumizing column has the gas channel layer and honeycomb layer that set up gradually from top to bottom, the inside arrangement of gas channel layer has the spiral coiled disc shape lower gas passage, and the lower gas passage is close to honeycomb layer and sets up, the honeycomb layer adopts the gas permeable steel material, the inside arrangement of vacuumizing column has the vertical gas passage connected with lower gas passage, and the vertical gas passage upper end port is connected with the gas pipe, and one end of gas pipe passes through upper mould frame and extends to the outside of mould.

[0005] As a supplement to the technical scheme of the utility model, the lower end of the lower mould frame is provided with two mould feet, and a top plate assembly is arranged between the two mould feet and slides up and down, and a thimble is arranged on the top plate assembly and vertically inserted into the cavity.

[0006] As a supplement to the technical solution described in this utility model, a horizontally sliding slide is installed on the upper end of the lower mold frame on the right side of the lower mold core. One end of the slide is provided with a core-pulling column that is horizontally inserted into the cavity. A core-pulling cylinder connected to the slide is installed on the right side of the lower mold frame.

[0007] As a supplement to the technical solution described in this utility model, a flow divider cone is installed on the upper end of the lower mold frame on the left side of the lower mold core. A flow channel is provided between the flow divider cone and the head of each lower mold cavity. A material cylinder sleeved outside the flow divider cone is installed inside the upper part of the upper mold frame.

[0008] As a supplement to the technical solution described in this utility model, the air permeability gap of the honeycomb layer is 0.03-0.05mm.

[0009] As a supplement to the technical solution described in this utility model, the collecting groove is connected to the two connecting channels by a corrugated transition groove.

[0010] As a supplement to the technical solution described in this utility model, the airway layer and the honeycomb layer are integrally formed by 3D printing.

[0011] Beneficial Effects: This utility model relates to a mold structure for central vacuuming. The collecting groove connects to the end of each lower mold cavity through a connecting channel. The honeycomb layer uniformly adsorbs the gas inside the collecting groove. The gas is discharged sequentially through the air gaps of the honeycomb layer, the lower air channel, the vertical air channel, and the air pipe, achieving directional vacuuming of the mold cavity and reducing product defects. The collecting groove is located at the upper end of the lower mold core and between the two lower mold cavities. The honeycomb layer at the lower part of the vacuuming column is inserted into the collecting groove. The collecting groove is the basic position for vacuuming. Vacuuming is performed directly from the middle of the mold, which not only greatly shortens the distance between the basic position for vacuuming and the mold cavity, effectively reducing energy consumption, but also ensures a good vacuuming effect. The lower air channel is spirally coiled into a disc shape, which provides more contact space between the lower air channel and the honeycomb layer, improving the efficiency of vacuuming and enhancing the suction effect. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the flow divider cone, lower mold core, core pulling column, slide block and core pulling cylinder described in this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the flow divider cone and the lower mold core described in this utility model;

[0015] Figure 4 This is a schematic diagram of the upper mold core and air pipe described in this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the vacuum column and gas tube described in this utility model;

[0017] Figure 6 This is a schematic diagram of the internal air passages and air pipes of the vacuum column described in this utility model.

[0018] Illustration: 1. Upper mold frame, 2. Upper mold core, 3. Lower mold frame, 4. Lower mold core, 5. Vacuum pump column, 6. Air pipe, 7. Diverter cone, 8. Material cylinder, 9. Slide block, 10. Core-pulling cylinder, 11. Corrugated transition groove, 12. Mold foot, 13. Top plate assembly, 14. Ejector pin, 15. Lower mold cavity, 16. Collection groove, 17. Flow channel, 18. Connecting channel, 19. Core-pulling column, 20. Upper mold cavity, 21. Air channel layer, 22. Honeycomb layer, 23. Vertical air channel, 24. Lower air channel. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0020] The present invention relates to a mold structure for applying a central vacuum, such as... Figures 1-6 As shown, the system includes an upper mold frame 1 and a lower mold frame 3. An upper mold core 2 and a lower mold core 4 are stacked vertically between the upper mold frame 1 and the lower mold frame 3. Two lower mold cavities 15 are arranged side-by-side at the upper end of the lower mold core 4. A collecting groove 16 is provided between the two lower mold cavities 15 at the upper end of the lower mold core 4. A connecting channel 18 is provided between the collecting groove 16 and the end of each lower mold cavity 15. The lower end of the upper mold core 2 has an upper mold cavity 20 corresponding to each lower mold cavity 15. The upper mold cavity 20 and the lower mold cavity 15 are joined to form a cavity. Vertically arranged... The vacuum column 5 has an air channel layer 21 and a honeycomb layer 22 arranged sequentially from top to bottom at its lower end. The air channel layer 21 has a lower air channel 24 spirally wound into a disc shape inside. The lower air channel 24 is arranged close to the honeycomb layer 22. The honeycomb layer 22 is made of breathable steel material. The internal gaps of the breathable steel material can only be used for gas to pass through, and molten aluminum cannot enter. The vacuum column 5 has a vertical air channel 23 connected to the lower air channel 24 inside. The upper end of the vertical air channel 23 is connected to an air pipe 6. One end of the air pipe 6 passes through the upper mold frame 1 and extends to the outside of the mold.

[0021] The lower mold frame 3 has a mold foot 12 installed on each side of its lower end, and a top plate assembly 13 that slides up and down is installed between the two mold feet 12. The top plate assembly 13 is equipped with an ejector pin 14 that is vertically inserted into the cavity.

[0022] The upper end of the lower mold frame 3 is located on the right side of the lower mold core 4 and is equipped with a horizontally sliding slide 9. One end of the slide 9 is provided with a core-pulling column 19 that is horizontally inserted into the cavity. The right side of the lower mold frame 3 is equipped with a core-pulling cylinder 10 connected to the slide 9.

[0023] The lower mold frame 3 is equipped with a flow divider cone 7 on the left side of the lower mold core 4. A flow channel 17 is provided between the flow divider cone 7 and the head of each lower mold cavity 15. The upper mold frame 1 is equipped with a material cylinder 8 that is sleeved outside the flow divider cone 7.

[0024] The collection groove 16 is connected to the two connecting channels 18 by a corrugated transition groove 11. The design of the corrugated transition groove 11 can better withstand impact and reduce the risk of deformation.

[0025] The airway layer 21 and the honeycomb layer 22 are integrally formed by 3D printing. The integrally formed airway layer 21 and honeycomb layer 22 by 3D printing avoid the seam problems caused by traditional processing and have high durability.

[0026] During molding, molten aluminum enters from the barrel 8, is split into two paths by the flow divider cone 7, and then is injected into the corresponding cavities through the two flow channels 17. The external vacuum equipment is activated, and it performs evacuation through the air pipe 6. The collecting groove 16 is connected to the end of each lower mold cavity 15 through the connecting channel 18. The honeycomb layer 22 uniformly adsorbs the gas inside the collecting groove 16. The gas is discharged sequentially through the air gap of the honeycomb layer 22, the lower air channel 24, the vertical air channel 23, and the air pipe 6, realizing directional evacuation of the cavity and reducing product defects. The collecting groove 16 is located at the upper end of the lower mold core 4 and between the two lower mold cavities 15. The honeycomb layer 22 at the lower part of the vacuum column 5 is inserted into the collecting groove 16. The collecting groove 16 is the basic position for vacuuming. Vacuuming is performed directly from the middle of the mold, which not only greatly shortens the distance between the basic position for vacuuming and the cavity, effectively reducing energy consumption, but also ensures a good vacuuming effect. The lower air channel 24 is spirally coiled into a disc shape, which makes the lower air channel 24 and the honeycomb layer 22 have more contact space, which can improve the efficiency of vacuuming and enhance the suction effect.

[0027] The air gap of the honeycomb layer 22 is 0.03-0.05mm, which balances air permeability and anti-clogging performance. The internal gap of the honeycomb layer 22 can only be used for gas to pass through, and molten aluminum cannot enter.

[0028] After the product is formed, the upper mold frame 1 and the upper mold core 2 separate from the lower mold frame 3 and the lower mold core 4, thus opening the mold. Then, the core-pulling cylinder 10 drives the two core-pulling pillars 19 to slide to the right to complete the lateral core pulling. The top plate assembly 13 pushes the ejector pin 14 to eject the product.

[0029] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0032] The above provides a detailed description of a mold structure for vacuuming the middle part of the mold provided in this application. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A mold structure for applying central vacuuming, comprising an upper mold frame (1) and a lower mold frame (3), wherein an upper mold core (2) and a lower mold core (4) stacked vertically are installed between the upper mold frame (1) and the lower mold frame (3), characterized in that: The lower mold core (4) has two lower mold cavities (15) arranged side by side at its upper end. A collection groove (16) is provided between the two lower mold cavities (15) at the upper end of the lower mold core (4). A connecting channel (18) is provided between the collection groove (16) and the end of each lower mold cavity (15). The lower end of the upper mold core (2) is provided with an upper mold cavity (20) that corresponds one-to-one with the lower mold cavity (15). The upper mold cavity (20) and the lower mold cavity (15) are spliced ​​together to form a cavity. A vertically arranged vacuum column (5) is installed inside the upper mold core (2). The lower end of the empty column (5) has an air channel layer (21) and a honeycomb layer (22) arranged from top to bottom. The air channel layer (21) has a lower air channel (24) arranged inside, which is spirally coiled into a disc shape. The lower air channel (24) is arranged close to the honeycomb layer (22). The honeycomb layer (22) is made of breathable steel. The vacuum column (5) has a vertical air channel (23) connected to the lower air channel (24) inside. The upper end of the vertical air channel (23) is connected to an air pipe (6). One end of the air pipe (6) passes through the upper mold frame (1) and extends to the outside of the mold.

2. The mold structure for applying central vacuuming according to claim 1, characterized in that: The lower mold frame (3) has a mold foot (12) installed on each side of its lower end. A top plate assembly (13) that slides up and down is installed between the two mold feet (12). An ejector pin (14) that is vertically inserted into the cavity is installed on the top plate assembly (13).

3. The mold structure for applying central vacuuming according to claim 1, characterized in that: The upper end of the lower mold frame (3) is located on the right side of the lower mold core (4) and is equipped with a horizontally sliding slide (9). One end of the slide (9) is provided with a core-pulling column (19) that is horizontally inserted into the cavity. The right side of the lower mold frame (3) is equipped with a core-pulling cylinder (10) connected to the slide (9).

4. The mold structure for applying central vacuuming according to claim 1, characterized in that: The lower mold frame (3) is equipped with a flow divider cone (7) on the left side of the lower mold core (4). A flow channel (17) is provided between the flow divider cone (7) and the head of each lower mold cavity (15). The upper mold frame (1) is equipped with a material cylinder (8) sleeved outside the flow divider cone (7).

5. A mold structure for applying central vacuuming according to claim 1, characterized in that: The air permeability gap of the honeycomb layer (22) is 0.03-0.05mm.

6. The mold structure for applying central vacuuming according to claim 1, characterized in that: The collection groove (16) is connected to the two connecting channels (18) by a corrugated transition groove (11).

7. A mold structure for applying central vacuuming according to claim 1, characterized in that: The airway layer (21) and the honeycomb layer (22) are integrally formed by 3D printing.

Images