Die casting slag cleaning structure
By installing guide strips and scraping components in the mold groove, the problem of die casting slag residue was solved, the accurate movement of the slider and the precision of the mold cavity were achieved, the modification cost was reduced and the maintainability was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DONGKE MOLD MFG
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-21
AI Technical Summary
During the die casting process, slag can easily remain between the slider and the core of the mold, causing the slider to fail to move accurately into place and affecting product quality.
A guide strip and scraper assembly are installed in the groove of the mold. When the mold is closed, the scraper is located in the receiving groove. When the mold is opened, the scraper moves with the slider to push out the overflow residue and avoid residue.
Effective cleaning of overflow ensures accurate movement of the slider, guarantees the accuracy of the mold cavity, reduces mold modification costs, and improves maintainability.
Smart Images
Figure CN224525964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold design, specifically to a structure for cleaning slag from die casting. Background Technology
[0002] Die casting involves pouring molten metal into the cavity of a die-casting mold, where it cools and solidifies. The die typically includes a stationary mold, a moving mold, and possibly several mold-closing components. The stationary mold includes a stationary mold base and a stationary mold core nested within it. The moving mold includes a moving mold base and a moving mold core nested within it. Both the moving and stationary mold cores have mating surfaces, i.e., the product contour surfaces. For example... Figure 1 As shown, the mold clamping assembly generally includes a telescopic control mechanism 201, a slider 202, and a clamping module 203; the fixed end of the telescopic control mechanism 201 is fixed on the mold base, as shown. Figure 2 As shown, the mold base 100 is provided with a sliding groove 101 that matches the slider, and the mold core 300 is provided with a mold closing groove 301 that matches the mold closing module 203; at the same time, the outer contour of the slider 202 is usually larger than that of the mold closing module 203, so the sliding groove 101 and the mold closing groove 301 are in the form of stepped grooves.
[0003] After a die-casting mold equipped with a clamping mechanism is closed, the mold core, mold base, and clamping plate have mating surfaces. Normally, even under high pressure during die casting, molten metal will not overflow from these mating surfaces. However, with the use of molds, etc., Figure 3 As shown, there may be a situation where die casting liquid overflows and forms slag on the bonding surface.
[0004] Theoretically, there is a possibility of slag overflow on all four sides of the mold closing module. However, in practice, slag overflow is only possible on the two sides in the mold opening direction. The other two sides always maintain a tight fit with the moving mold (remaining in a clamped and embedded state) during both mold opening and closing of the die-casting mold, so slag overflow is basically not a problem on these two sides. On the two sides in the mold opening direction, during mold closing, the mutual compression of the moving and stationary molds during mold closing compresses the mold closing module, reducing the gap on these two sides, which presents a possibility of slag overflow. The surface of the mold closing module facing the other mold core is exposed after mold opening, so even if slag overflows on this surface, it can be easily cleaned. However, if slag overflows on the opposite side, during the retraction of the mold closing module, because the cross-section of the slide groove is larger than the cross-section of the mold closing groove, the slag will enter the slide groove from the mold closing groove. Simultaneously, because the slider cannot completely disengage from the slide groove, the slag that entered the slide groove will remain in that area.
[0005] Residual slag will form a blockage during the next mold closing process as the slider moves towards the mold core, preventing the slider from sliding into place. This, in turn, prevents the mold core from being properly positioned, ultimately causing dimensional deviations in the mold cavity (the surface of the product matching the mold core will be larger), resulting in a defective die-cast product. Therefore, cleaning up the slag is a technical issue that needs further resolution. Utility Model Content
[0006] In view of the above-mentioned defects of the prior art, the purpose of this utility model is to provide a die casting overflow cleaning structure that can push the overflow generated by die casting away from the space between the slider and the mold core, ensuring that the slider can be moved into place in the next mold closing, thereby ensuring the accuracy of the mold cavity.
[0007] The objective of this utility model is achieved through the following technical solution:
[0008] The die casting slag removal structure includes:
[0009] At least two lower guide rails are set in the groove of the mold base; after the slider is placed on the lower guide rails, there is a gap between the lower surface of the slider and the bottom of the groove on the mold base.
[0010] At least one scraping component is disposed in the gap between the lower surface of the slider and the bottom of the groove on the mold base; the area on the mold core opposite the groove is provided with a receiving groove that matches the scraper of the scraping component; when the mold is closed, the scraper of the scraping component is located in the receiving groove, and the outer surface of the scraper of the scraping component does not exceed the receiving groove; when the mold is opened, the scraper of the scraping component moves with the slider and pushes the overflow slag in the gap between the lower surface of the slider and the bottom of the groove on the mold base in the direction of slider movement.
[0011] Furthermore, the number of scraping components is one more than the number of lower guide strips; the scraping components and lower guide strips are arranged alternately; a plurality of scraping components and a plurality of lower guide strips fill the transverse direction of the groove.
[0012] Furthermore, a gap is left between the end face of the lower guide strip and the end face of the mold core, and the width of the gap is not less than the length of the overflow residue brought out from the mold closing module when the mold is opened.
[0013] Furthermore, a guide strip is provided in the gap between the end face of the lower guide strip and the end face of the mold core; the two ends of the guide strip are in contact with the end face of the guide strip and the end face of the mold core, respectively; the upper surface of the guide strip is provided with a guide surface to guide the overflow slag falling on its upper surface to slide to one or both sides; the outer contour of the guide strip does not interfere with the movement of the scraper of the scraping assembly.
[0014] Further, when the mold is installed vertically, there is one scraping component, which is arranged below the lowest lower guide slide bar; both ends of the scraping plate of the scraping component are respectively in contact with the side surface of the lowest lower guide slide bar and the side surface of the chute.
[0015] Further, there are two lower guide slide bars, which are arranged in parallel; there is one scraping component, which is arranged between the two lower guide slide bars; the end surface of the lower guide slide bar located below is in contact with the end surface of the mold core; slag leakage holes are provided on the lower side surface of the chute; the openings of the slag leakage holes are fitted to the end surface of the mold core; the slag leakage holes are straight holes, and the overflowing slag in the slag leakage holes is discharged from the mold base under the action of gravity.
[0016] Further, the scraping component includes:
[0017] A connecting rod, which is located in the interval left between the lower surface of the slider and the bottom of the chute on the mold base, and one end is fixedly connected to the lower surface of the slider;
[0018] A scraping plate, which is arranged in the interval left between the lower surface of the slider and the bottom of the chute on the mold base, and the outer plate surface is fixedly connected to the other end of the connecting rod.
[0019] Further, the height of the scraping plate is the same as the height between the lower surface of the slider and the bottom of the chute on the mold base; the end surface of the scraping plate is in contact with the side surface of the lower guide slide bar or the side wall of the chute;
[0020] The connecting rod is L-shaped, the "I" part of the connecting rod is connected to the sliding seat, and the "-" part is connected to the scraping plate; there is a space between the rod surface of the "-" part of the connecting rod and the lower surface of the sliding seat.
[0021] Further, the scraping component includes:
[0022] A scraping plate, which is arranged in the interval left between the lower surface of the slider and the bottom of the chute on the mold base;
[0023] At least one elastic extrapolation mechanism, which is arranged between the scraping plate and the accommodation groove of the mold core; when the mold is opened, it pushes the scraping plate to move in the sliding direction;
[0024] A limiting block, which is located in the interval left between the lower surface of the slider and the bottom of the chute on the mold base, is fixedly connected to the lower surface of the sliding seat, and the inner side surface faces the outer side surface of the scraping plate to prevent the scraping plate from detaching from the interval left between the lower surface of the slider and the bottom of the chute on the mold base.
[0025] Further, a stepped jack is provided at the bottom of the accommodation groove;
[0026] The elastic extrapolation mechanism includes:
[0027] An insertion rod, the head end of which is threadedly connected to the lower hole of the stepped jack, and the tail end passes through the scraping plate and is slidably connected to the scraping plate;
[0028] The return spring is sleeved on the insertion rod and located inside the upper hole of the stepped insertion hole. Its two ends abut against the stepped surface of the stepped insertion hole and the inner side of the scraper, respectively.
[0029] Due to the adoption of the above technical solution, this utility model has the following advantages:
[0030] 1. As the mold opens, the scraper can simultaneously scrape away the overflow residue between the mold core and the mold groove, preventing the overflow residue from falling and remaining between the mold core and the slide end face, which would cause the slider to fail to move accurately into place during the next mold closing.
[0031] 2. The structure of this utility model is based on the original mold with minor improvements. It does not affect the design of the original mold, has low modification cost for existing molds, and has low processing difficulty and low processing cost for newly produced molds.
[0032] 3. The slag scraping mechanism does not require a separate control mechanism. It works synchronously with the mold closing and opening, making it highly maintainable and cost-effective.
[0033] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0034] The accompanying drawings of this utility model are described below:
[0035] Figure 1 This is a three-dimensional schematic diagram of the moving mold of a conventional die-casting mold.
[0036] Figure 2 This is a three-dimensional structural diagram of the mold closing assembly of a conventional die-casting mold.
[0037] Figure 3 This is a three-dimensional structural diagram of a conventional die-casting mold after assembly of the moving mold and a mold closing assembly.
[0038] Figure 4 This is a three-dimensional structural diagram of the die casting overflow cleaning structure after it is installed on the mold base in Example 1.
[0039] Figure 5 This is a front view of the die casting overflow cleaning structure after it has been installed on the mold base in Example 1.
[0040] Figure 6 for Figure 5 Schematic diagram of the structure at section AA in the middle.
[0041] Figure 7 for Figure 5 Schematic diagram of the structure at the BB section.
[0042] Figure 8 for Figure 7 Schematic diagram of the structure at the CC section.
[0043] Figure 9 for Figure 7 Schematic diagram of the structure at the DD section.
[0044] Figure 10 This is a cross-sectional view of the die casting overflow cleaning structure in Example 1, which uses a different hanging component.
[0045] Figure 11 This is a schematic diagram of the die casting overflow cleaning structure in Example 2 after it has been installed on the mold base.
[0046] Figure 12 for Figure 11 A schematic diagram of the right-side structure.
[0047] Figure 13 for Figure 12 Schematic diagram of the EE section structure.
[0048] Figure 14 for Figure 13 Schematic diagram of the structure at the FF section.
[0049] Figure 15 This is a schematic diagram of the die casting overflow cleaning structure in Example 3 after it has been installed on the mold base.
[0050] Figure 16 for Figure 15 A schematic diagram of the right-side structure.
[0051] Figure 17 for Figure 16 Schematic diagram of the structure at the GG section.
[0052] Figure 18 for Figure 17 Schematic diagram of the structure at the HH section.
[0053] Figure 19 for Figure 17 Schematic diagram of the structure at the JJ section.
[0054] In the diagram: 1. Mold base; 11. Slide groove; 12. Slag leakage hole; 2. Mold core; 21. Mold closing groove; 22. Receiving groove; 23. Stepped insertion hole; 3. Spacing; 4. Scraping assembly; 41. Connecting rod; 42. Scraper; 43. Space; 441. Insert rod; 442. Return spring; 45. Limiting block; 5. Gap; 6. Guide strip; 61. Guide surface; 7. Lower guide strip; 8. Side guide strip; 9. Mold closing module; 10. Slider. Detailed Implementation
[0055] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example
[0056] like Figures 4 to 9 As shown, the die-casting slag removal structure includes:
[0057] At least two lower guide strips 7 are set in the groove 11 of the mold base 1; after the slider 10 is placed on the lower guide strips 7, a gap 3 is left between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1.
[0058] At least one scraping component is disposed within the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1; the area on the mold core 2 opposite to the groove 11 is provided with a receiving groove 22 that matches the scraper 42 of the scraping component; when the mold is closed, the scraper 42 of the scraping component is located in the receiving groove 22, and the outer surface of the scraper 42 of the scraping component does not exceed the receiving groove 22; when the mold is opened, the scraper 42 of the scraping component moves with the slider 10, pushing the overflow residue in the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1 towards the direction of movement of the slider 10.
[0059] As the mold opens, the scraper 42 simultaneously removes the overflow residue between the mold core 9 and the mold groove 21, preventing it from falling and remaining between the mold core 2 and the slide end face, which could cause the slider 10 to fail to move accurately into place during the next mold closing. This invention features a minor improvement on the existing mold design, without affecting its functionality. It offers low modification costs for existing molds and low processing difficulty and cost for newly produced molds. The overflow removal mechanism does not require a separate control mechanism; it operates synchronously with mold closing and opening, resulting in high maintainability and low cost.
[0060] In this embodiment, the number of scraping components is the number of lower guide strips 7 plus one; the scraping components and lower guide strips 7 are arranged at intervals of 3; a plurality of scraping components and a plurality of lower guide strips 7 fill the transverse direction of the groove 11.
[0061] When the mold is installed horizontally, that is, during the mold opening and closing process, the moving mold moves up and down vertically to the ground. At this time, multiple scraping components can scrape away all the overflow residue in all areas where it may fall.
[0062] In this embodiment, a gap 5 is left between the end face of the lower guide strip 7 and the end face of the mold core 2. The width of the gap 5 is not less than the length of the overflow slag brought out from the closing module 9 when the mold is opened.
[0063] When spillage falls onto the lower guide rail 7, the gap 5 ensures that the spillage does not remain on the upper surface of the lower guide rail 7, thus preventing blockage of the slider 10.
[0064] In this embodiment, a guiding bar 6 is provided at a gap 5 between the end face of the lower guiding slide bar 7 and the end face of the die core 2; both ends of the guiding bar 6 are respectively in contact with the end face of the guiding slide bar and the end face of the die core 2; a guiding surface 61 for guiding the overflow slag falling on its upper surface to slide to one side or both sides thereof is provided on the upper surface of the guiding bar 6; the outer contour of the guiding bar 6 does not interfere with the movement of the scraping plate 42 of the scraping component.
[0065] In order to avoid the accumulation of overflow slag at the position of the lower guiding slide bar 7, the guiding bar 6 is provided and the guiding surface 61 is designed so that the overflow slag can fall into the corresponding area of the scraping plate 42, thus avoiding the "accumulation of dirt" of the overflow slag.
[0066] In this embodiment, the scraping component includes:
[0067] A connecting rod 41, located in a gap 3 left between the lower surface of the slider 10 and the bottom of the sliding groove 11 on the die base 1, and one end is fixedly connected to the lower surface of the slider 10;
[0068] A scraping plate 42, arranged in the gap 3 left between the lower surface of the slider 10 and the bottom of the sliding groove 11 on the die base 1, and the outer side plate surface is fixedly connected to the other end of the connecting rod 41.
[0069] The height of the scraping plate 42 is the same as the height between the lower surface of the slider 10 and the bottom of the sliding groove 11 on the die base 1; the end face of the scraping plate 42 is in contact with the side surface of the lower guiding slide bar 7 or the side wall of the sliding groove 11;
[0070] The connecting rod 41 is L-shaped, the "I" part of the connecting rod 41 is connected to the sliding seat, and the "-" part is connected to the scraping plate 42; there is a space 43 between the rod surface of the "-" part of the connecting rod 41 and the lower surface of the sliding seat.
[0071] There is a space 43 between the rod surface of the "-" part of the connecting rod 41 and the lower surface of the sliding seat, which can reduce the adhesion of overflow slag on the connecting rod 41, resulting in the accumulation of overflow slag.
[0072] As Figure 10 shown, the scraping component in this embodiment can also adopt the following scheme. Specifically, the scraping component in this embodiment includes:
[0073] A scraping plate 42, arranged in the gap 3 left between the lower surface of the slider 10 and the bottom of the sliding groove 11 on the die base 1;
[0074] At least one elastic extrapolation mechanism, arranged between the scraping plate 42 and the accommodation groove 22 of the die core 2; when the mold is opened, it pushes the scraping plate 42 to move in the sliding direction;
[0075] The limiting block 45 is located in the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1. It is fixed to the lower surface of the slide base, and its inner side faces the outer side of the scraper 42, thus preventing the scraper 42 from disengaging from the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1.
[0076] The bottom of the receiving groove 22 is provided with a stepped insertion hole 23;
[0077] The elastic extrapolation mechanism includes:
[0078] The insertion rod 441 has its head end threaded into the lower hole of the stepped insertion hole 23, and its tail end passes through the scraper 42 and is slidably connected to the scraper 42.
[0079] The return spring 442 is sleeved on the insertion rod 441 and located in the upper hole of the stepped insertion hole 23. Its two ends abut against the stepped surface of the stepped insertion hole 23 and the inner side surface of the scraper 42, respectively.
[0080] The scraper 42 is controlled by a return spring 442, and the position of the scraper 42 is limited by a limit block 45. When the overflow residue adheres to the chute 11, the limit block 45 releases the displacement restriction of the scraper 42 as the slider 10 retracts. If the adhered overflow residue hinders the rapid movement of the scraper 42, the return spring 442 will push the scraper 42 with all its might to scrape away the adhered overflow residue.
[0081] This technical solution allows the scraper 42 to be softly connected to the slide block instead of rigidly connected, ensuring that the scraper 42 and other structures are not damaged when there is high adhesion of overflow slag, while the maximum scraping force is controlled by the selected return spring 442. Example
[0082] like Figure 11-14 As shown, the die-casting slag removal structure includes:
[0083] At least two lower guide strips 7 are set in the groove 11 of the mold base 1; after the slider 10 is placed on the lower guide strips 7, a gap 3 is left between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1.
[0084] At least one scraping component is disposed within the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1; the area on the mold core 2 opposite to the groove 11 is provided with a receiving groove 22 that matches the scraper 42 of the scraping component; when the mold is closed, the scraper 42 of the scraping component is located in the receiving groove 22, and the outer surface of the scraper 42 of the scraping component does not exceed the receiving groove 22; when the mold is opened, the scraper 42 of the scraping component moves with the slider 10, pushing the overflow residue in the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1 towards the direction of movement of the slider 10.
[0085] With the mold opening, the scraping plate 42 can synchronously scrape away the overflow slag between the mold combining block 9 and the mold combining groove 21, preventing the overflow slag from falling and remaining between the mold core 2 and the end face of the slide base, which may cause the slider 10 to fail to move accurately into place during the next mold closing. The structure of the present utility model is improved within a small range based on the original mold, without affecting the design of the original mold, with low cost for modifying existing molds, low processing difficulty and low processing cost for newly produced molds. Scraping away the overflow slag does not require an independent control mechanism, and it works synchronously with the mold closing and opening of the mold, with high maintainability and low cost.
[0086] In this embodiment, a gap 5 is left between the end face of the lower guide slide bar 7 and the end face of the mold core 2, and the width of the gap 5 is not less than the length of the overflow slag carried out by the mold combining block 9 during mold opening.
[0087] When the overflow slag just falls on the position of the lower guide slide bar 7, the provided gap 5 enables the overflow slag not to remain on the upper surface of the lower guide slide bar 7, thereby avoiding blocking the slider 10.
[0088] In this embodiment, when the mold is installed vertically, there is one scraping component, which is arranged below the lowest lower guide slide bar 7; both ends of the scraping plate 42 of the scraping component respectively contact the side surface of the lowest lower guide slide bar 7 and the side surface of the chute 11.
[0089] In this embodiment, the scraping component can adopt the same two structures as in Embodiment 1. Specifically, the first structure of the scraping component includes:
[0090] The connecting rod 41 is located within the interval 3 left between the lower surface of the slider 10 and the bottom of the chute 11 on the mold base 1, and one end is fixedly connected to the lower surface of the slider 10;
[0091] The scraping plate 42 is arranged within the interval 3 left between the lower surface of the slider 10 and the bottom of the chute 11 on the mold base 1, and the outer plate surface is fixedly connected to the other end of the connecting rod 41.
[0092] The height of the scraping plate 42 is the same as the height between the lower surface of the slider 10 and the bottom of the chute 11 on the mold base 1; the end face of the scraping plate 42 contacts the side surface of the lower guide slide bar 7 or the side wall of the chute 11;
[0093] The connecting rod 41 is L-shaped, the "I" part of the connecting rod 41 is connected to the slide base, and the "-" part is connected to the scraping plate 42; there is a space 43 between the rod surface of the "-" part of the connecting rod 41 and the lower surface of the slide base.
[0094] There is a space 43 between the rod surface of the "-" part of the connecting rod 41 and the lower surface of the slide base, which can reduce the adhesion of the overflow slag on the connecting rod 41, resulting in the accumulation of the overflow slag.
[0095] The second structure of the scraping component can adopt the same as in Embodiment 1 Figure 10 The scraping structure shown includes the following scraping components:
[0096] The scraper 42 is set in the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1;
[0097] At least one elastic push mechanism is provided between the scraper 42 and the receiving groove 22 of the mold core 2; when the mold is opened, it pushes the scraper 42 to move in the sliding direction;
[0098] The limiting block 45 is located in the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1. It is fixed to the lower surface of the slide base, and its inner side faces the outer side of the scraper 42, thus preventing the scraper 42 from disengaging from the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1.
[0099] The bottom of the receiving groove 22 is provided with a stepped insertion hole 23;
[0100] The elastic extrapolation mechanism includes:
[0101] The insertion rod 441 has its head end threaded into the lower hole of the stepped insertion hole 23, and its tail end passes through the scraper 42 and is slidably connected to the scraper 42.
[0102] The return spring 442 is sleeved on the insertion rod 441 and located in the upper hole of the stepped insertion hole 23. Its two ends abut against the stepped surface of the stepped insertion hole 23 and the inner side surface of the scraper 42, respectively.
[0103] The scraper 42 is controlled by a return spring 442, and the position of the scraper 42 is limited by a limit block 45. When the overflow residue adheres to the chute 11, the limit block 45 releases the displacement restriction of the scraper 42 as the slider 10 retracts. If the adhered overflow residue hinders the rapid movement of the scraper 42, the return spring 442 will push the scraper 42 with all its might to scrape away the adhered overflow residue.
[0104] This technical solution allows the scraper 42 to be softly connected to the slide block instead of rigidly connected, ensuring that the scraper 42 and other structures are not damaged when there is high adhesion of overflow slag, while the maximum scraping force is controlled by the selected return spring 442.
[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention. Example
[0106] like Figure 15-19 As shown, the die-casting slag removal structure includes:
[0107] At least two lower guide strips 7 are set in the groove 11 of the mold base 1; after the slider 10 is placed on the lower guide strips 7, a gap 3 is left between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1.
[0108] At least one scraping component is disposed within the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1; the area on the mold core 2 opposite to the groove 11 is provided with a receiving groove 22 that matches the scraper 42 of the scraping component; when the mold is closed, the scraper 42 of the scraping component is located in the receiving groove 22, and the outer surface of the scraper 42 of the scraping component does not exceed the receiving groove 22; when the mold is opened, the scraper 42 of the scraping component moves with the slider 10, pushing the overflow residue in the gap 3 between the lower surface of the slider 10 and the bottom of the groove 11 on the mold base 1 towards the direction of movement of the slider 10.
[0109] As the mold opens, the scraper 42 simultaneously removes the overflow residue between the mold core 9 and the mold groove 21, preventing it from falling and remaining between the mold core 2 and the slide end face, which could cause the slider 10 to fail to move accurately into place during the next mold closing. This invention features a minor improvement on the existing mold design, without affecting its functionality. It offers low modification costs for existing molds and low processing difficulty and cost for newly produced molds. The overflow removal mechanism does not require a separate control mechanism; it operates synchronously with mold closing and opening, resulting in high maintainability and low cost.
[0110] In this embodiment, a gap 5 is left between the end face of the lower guide strip 7 and the end face of the mold core 2. The width of the gap 5 is not less than the length of the overflow slag brought out from the closing module 9 when the mold is opened.
[0111] When spillage falls onto the lower guide rail 7, the gap 5 ensures that the spillage does not remain on the upper surface of the lower guide rail 7, thus preventing blockage of the slider 10.
[0112] In this embodiment, when the mold is installed vertically, there are two lower guide strips 7 arranged in parallel; there is one scraping component, which is arranged between the two lower guide strips 7; the end face of the lower guide strip 7 is in contact with the end face of the mold core 2; a slag leakage hole 12 is provided on the lower side of the slide groove 11; the opening of the slag leakage hole 12 fits the end face of the mold core 2; the slag leakage hole 12 is a straight hole, and the overflow slag located in the slag leakage hole 12 is discharged from the mold base 1 under the action of gravity.
[0113] If there is relatively more overflow slag after a single die casting, use the scraping plate 42 to clean the overflow slag in the area where the overflow slag can fall as much as possible, and the remaining part is naturally discharged through the slag leakage hole 12. In this embodiment, side guide slide bars 8 are provided on opposite sides of the slider 10 and the chute 11 to reduce the friction between the slider 10 and the die base 1. In order for the overflow slag to smoothly enter the slag leakage hole 12, corresponding gaps are provided on the corresponding side guide slide bars 8.
[0114] In this embodiment, the scraping and separating component can adopt the same two structures as in Embodiment 1. Specifically, the first structure of the scraping and separating component includes:
[0115] The connecting rod 41 is located in the interval 3 left between the lower surface of the slider 10 and the bottom of the chute 11 on the die base 1, and one end is fixedly connected to the lower surface of the slider 10;
[0116] The scraping plate 42 is arranged in the interval 3 left between the lower surface of the slider 10 and the bottom of the chute 11 on the die base 1, and the outer plate surface is fixedly connected to the other end of the connecting rod 41.
[0117] The height of the scraping plate 42 is the same as the height between the lower surface of the slider 10 and the bottom of the chute 11 on the die base 1; the end surface of the scraping plate 42 contacts the side surface of the lower guide slide bar 7 or the side wall of the chute 11;
[0118] The connecting rod 41 is L-shaped. The "I" part of the connecting rod 41 is connected to the sliding seat, and the "-" part is connected to the scraping plate 42; there is a space 43 between the rod surface of the "-" part of the connecting rod 41 and the lower surface of the sliding seat.
[0119] There is a space 43 between the rod surface of the "-" part of the connecting rod 41 and the lower surface of the sliding seat, which can reduce the adhesion of the overflow slag on the connecting rod 41 and cause the accumulation of the overflow slag.
[0120] The second structure of the scraping and separating component can adopt the scraping and separating structure shown in Embodiment 1 Figure 10 The scraping and separating component includes:
[0121] The scraping plate 42 is arranged in the interval 3 left between the lower surface of the slider 10 and the bottom of the chute 11 on the die base 1;
[0122] At least one elastic extrapolation mechanism is arranged between the scraping plate 42 and the accommodating groove 22 of the die core 2; when the mold is opened, it pushes the scraping plate 42 to move in the sliding direction;
[0123] The limiting block 45 is located in the interval 3 left between the lower surface of the slider 10 and the bottom of the chute 11 on the die base 1, is fixedly connected to the lower surface of the sliding seat, and the inner side surface faces the outer side surface of the scraping plate 42 to limit the scraping plate 42 from separating from the interval 3 left between the lower surface of the slider 10 and the bottom of the chute 11 on the die base 1.
[0124] The bottom of the receiving groove 22 is provided with a stepped insertion hole 23;
[0125] The elastic extrapolation mechanism includes:
[0126] The insertion rod 441 has its head end threaded into the lower hole of the stepped insertion hole 23, and its tail end passes through the scraper 42 and is slidably connected to the scraper 42.
[0127] The return spring 442 is sleeved on the insertion rod 441 and located in the upper hole of the stepped insertion hole 23. Its two ends abut against the stepped surface of the stepped insertion hole 23 and the inner side surface of the scraper 42, respectively.
[0128] The scraper 42 is controlled by a return spring 442, and the position of the scraper 42 is limited by a limit block 45. When the overflow residue adheres to the chute 11, the limit block 45 releases the displacement restriction of the scraper 42 as the slider 10 retracts. If the adhered overflow residue hinders the rapid movement of the scraper 42, the return spring 442 will push the scraper 42 with all its might to scrape away the adhered overflow residue.
[0129] This technical solution allows the scraper 42 to be softly connected to the slide block instead of rigidly connected, ensuring that the scraper 42 and other structures are not damaged when there is high adhesion of overflow slag, while the maximum scraping force is controlled by the selected return spring 442.
[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A structure for cleaning slag from die casting, characterized in that, Comprising: At least two lower guide sliders, arranged in the chute of the die base; after the slider is placed on the lower guide sliders, there is a gap between the lower surface of the slider and the bottom of the chute on the die base; At least one scraping and separating component, arranged in the gap between the lower surface of the slider and the bottom of the chute on the die base; a receiving groove matching the scraper of the scraping and separating component is provided in the area of the die core facing the chute; when the mold is closed, the scraper of the scraping and separating component is located in the receiving groove, and the outer surface of the scraper of the scraping and separating component does not exceed the receiving groove; when the mold is opened, the scraper of the scraping and separating component moves along with the slider, and pushes the overflow slag in the gap between the lower surface of the slider and the bottom of the chute on the die base in the direction of the slider movement.
2. The die-casting slag removal structure according to claim 1, characterized in that, The number of the scraping and separating components is one more than the number of the lower guide sliders; the scraping and separating components and the lower guide sliders are arranged at intervals in sequence; several scraping and separating components and several lower guide sliders fill the transverse direction of the chute.
3. The die-casting slag cleaning structure according to claim 1, characterized in that, There is a gap between the end face of the lower guide slider and the end face of the die core, and the width of this gap is not less than the length of the overflow slag brought out from the combined module when the mold is opened.
4. The die-casting slag removal structure according to claim 2, characterized in that, A guiding strip is provided at the gap between the end face of the lower guide slider and the end face of the die core; both ends of the guiding strip are respectively in contact with the end face of the guide slider and the end face of the die core; a guiding surface for guiding the overflow slag falling on its upper surface to slide to one side or both sides is provided on the upper surface of the guiding strip; the outer contour of the guiding strip does not interfere with the movement of the scraper of the scraping and separating component.
5. The die-casting slag cleaning structure according to claim 3, characterized in that, When the mold is installed vertically, there is one scraping and separating component, arranged below the lowest lower guide slider; both ends of the scraper of the scraping and separating component are respectively in contact with the side surface of the lowest lower guide slider and the side wall of the chute.
6. The die-casting slag cleaning structure according to claim 3, characterized in that, There are two lower guide sliders, arranged in parallel; there is one scraping and separating component, arranged between the two lower guide sliders; the end face of the lower guide slider located below is in contact with the end face of the die core; a slag leakage hole is provided on the lower side surface of the chute; the opening of the slag leakage hole is in contact with the end face of the die core; the slag leakage hole is a straight hole, and the overflow slag located in the slag leakage hole is discharged from the die base under the action of gravity.
7. The die-casting slag removal structure according to any one of claims 1-6, characterized in that, The scraping and separating component includes: A connecting rod, located in the gap between the lower surface of the slider and the bottom of the chute on the die base, and one end is fixedly connected to the lower surface of the slider; A scraper, arranged in the gap between the lower surface of the slider and the bottom of the chute on the die base, and the outer side plate surface is fixedly connected to the other end of the connecting rod.
8. The die-casting slag removal structure according to claim 7, characterized in that, The height of the scraper is the same as the height between the lower surface of the slider and the bottom of the chute on the die base; the end face of the scraper is in contact with the side surface of the lower guide slider or the side wall of the chute; The connecting rod is L-shaped, the "I" part of the connecting rod is connected to the slider, and the "-" part is connected to the scraper; there is a space between the rod surface of the "-" part of the connecting rod and the lower surface of the slider.
9. The die-casting slag removal structure according to any one of claims 1-6, characterized in that, The scraping and separating component includes: A scraper, arranged in the gap between the lower surface of the slider and the bottom of the chute on the die base; At least one elastic outward pushing mechanism, arranged between the scraper and the receiving groove of the die core; when the mold is opened, it pushes the scraper to move in the sliding movement direction; A limiting block, located in the gap between the lower surface of the slider and the bottom of the chute on the die base, is fixedly connected to the lower surface of the slider, and the inner side face faces the outer side face of the scraper, restricting the scraper from separating from the gap between the lower surface of the slider and the bottom of the chute on the die base.
10. The die-casting slag removal structure according to claim 9, characterized in that, A stepped jack is provided at the bottom of the receiving groove; The elastic outward pushing mechanism includes: The insertion rod has its head end threaded into the lower hole of the stepped insertion hole, and its tail end passes through the scraper and is slidably connected to the scraper. The return spring is sleeved on the insertion rod and located inside the upper hole of the stepped insertion hole. Its two ends abut against the stepped surface of the stepped insertion hole and the inner side of the scraper, respectively.