Casting mold for flat plate or flat plate with single-side reinforcing rib

Abstract

The invention discloses a casting mold for a flat plate or a flat plate with a single-sided reinforcing rib, which is provided with an upper mold consisting of an upper mold positioning plate and a plurality of upper mold movable plates, a lower mold consisting of a flat plate and a peripheral fence, and a driving mechanism is used for driving the upper mold movable plates to expand outwards and be attached to the inner side edge of the lower mold inner fence, so that a side edge gap between the upper mold and the lower mold is eliminated; therefore, the overflow edge formed between the upper die and the lower die of the casting is eliminated, the casting without the overflow edge can be freely shrunk when the casting is shrunk, shrinkage resistance caused by the overflow edge is avoided, and casting cracks caused by the shrinkage resistance are eliminated.

Description

Technical Field

[0001] This invention relates to a casting mold, specifically to a casting mold for a flat plate or a flat plate with single-sided reinforcing ribs. Background Technology

[0002] Flat plates and flat plates with single-sided reinforcing ribs are currently all cast using sand casting. Due to the thin walls and large area, the runner needs to be made very large to meet the requirements of full pouring. However, with open pouring and the mold closing downwards, the side gap between the upper and lower molds will cause overflow around the perimeter of the casting. When the casting shrinks, the overflow will hinder the shrinkage of the casting and cause cracks in the casting. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a casting mold for a flat plate or a flat plate with single-sided reinforcing ribs, which effectively overcomes the shortcomings of the prior art.

[0004] This invention is achieved through the following technical solution: It consists of a lower mold and an upper mold. The lower mold consists of a flat plate and a peripheral barrier. The upper mold consists of an upper mold positioning plate and two or more upper mold moving plates. The upper surface of the upper mold moving plate is in contact with the upper mold positioning plate, and the lower surface is in contact with the casting. The periphery of the upper mold moving plate is divided into the outer edge of the upper mold moving plate and the gap surface between the moving plates. There is a vertical elastic fitting device or gap control device between the upper mold positioning plate and the upper mold moving plate, which allows the upper mold moving plate to move freely in the horizontal direction relative to the upper mold positioning plate. The upper mold moving plate has a driving mechanism that can drive the upper mold moving plate to expand outward so that the outer edge of the upper mold moving plate is in contact with the inner edge of the lower mold stop or moves in the opposite direction to reset.

[0005] As a preferred technical solution, the upper mold moving plate has a 4-piece distribution.

[0006] As a preferred technical solution, the upper mold moving plate is distributed in two diagonal sections.

[0007] As a preferred technical solution: the elastic bonding device between the upper mold positioning plate and the upper mold moving plate consists of a bolt flange fixed on the upper mold fixed plate and a spring between the upper mold fixed plate.

[0008] As a preferred technical solution: the gap between the upper mold positioning plate and the upper mold moving plate is controlled such that there is a gap between the vertical positioning pin of the positioning plate and the fixing flange surface of the upper mold fixed plate and the plane of the upper mold positioning flange.

[0009] As a preferred technical solution: the driving mechanism of the upper mold moving plate relative to the upper mold positioning plate is cam driven with spring reset or spring driven with cam reset.

[0010] As a preferred technical solution: the upper mold positioning plate has an inclined surface of the upper mold positioning plate and the inner side of the lower mold stop edge to form an inclined wedge space. There is an exposed gap between the moving plates to cover the inclined wedge. When the inclined wedge moves within this inclined wedge space, when the inner side of the inclined wedge contacts the inclined surface of the upper mold positioning plate and the inner side of the lower mold stop edge respectively, the inclined wedge blocks the gap between the two upper mold moving plates that cannot be covered by the upper mold positioning plate.

[0011] As a preferred technical solution: when the casting is a single-sided plate with reinforcing ribs, several mold cores are placed on the bottom plane of the lower mold.

[0012] The beneficial effects of this invention are as follows: an upper mold consisting of an upper mold positioning plate and several upper mold moving plates is provided, and a lower mold consisting of a flat plate and a surrounding barrier is provided. A driving mechanism drives the upper mold moving plates to expand outward and fit against the inner side of the lower mold inner barrier, thereby eliminating the side gap between the upper and lower molds and thus eliminating the overflow formed between the upper and lower molds. When the casting shrinks, the casting without overflow can shrink freely, avoiding the shrinkage resistance caused by overflow and eliminating the casting cracks caused by overflow. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a side view of the casting mold for flat plate castings according to the present invention;

[0015] Figure 2 This is a top view of the casting mold for flat-plate castings according to the present invention;

[0016] Figure 3 This is a schematic diagram of the outward expansion of the upper mold moving plate of the present invention;

[0017] Figure 4 This is a lateral schematic diagram of the termination of the outward expansion of the upper mold moving plate of the present invention;

[0018] Figure 5 This is a top view of the upper mold moving plate of the present invention expanding outward to terminate;

[0019] Figure 6 This is a schematic diagram of the upper and lower molds and the mold after the upper mold moving plate expands according to the present invention;

[0020] Figure 7 This is a schematic diagram illustrating the vertical elastic positioning relationship between the upper mold positioning plate and the upper mold moving plate of the present invention.

[0021] Figure 8This is a top view showing the expansion and contraction relationship between the upper mold positioning plate and the upper mold moving plate of the present invention;

[0022] Figure 9 This is a lateral schematic diagram of the upper mold moving plate cam drive of the present invention;

[0023] Figure 10 This is a top view of the upper mold moving plate cam drive of the present invention;

[0024] Figure 11 This is a schematic diagram of the inner edge slope of the four-piece upper mold moving plate of the present invention;

[0025] Figure 12 This is a schematic diagram of the casting ribs between the four upper mold moving plates of the present invention;

[0026] Figure 13 This is a lateral schematic diagram of the casting reinforcement between the plate with mesh reinforcement and the moving plate of the present invention;

[0027] Figure 14 This is a top view of the casting reinforcement between the grid-reinforced flat plate and the moving plate of the present invention;

[0028] Figure 15 A top view of the wedge installation for covering the exposed gap between the moving plates according to the present invention;

[0029] Figure 16 This is a lateral schematic diagram of the wedge installation for covering the exposed gap between the moving plates according to the present invention;

[0030] Figure 17 This is a schematic diagram of the wedge covering the exposed gap between the moving plates of the present invention;

[0031] Figure 18 This is a schematic diagram of the diagonally split moving plate before expansion according to the present invention;

[0032] Figure 19 This is a schematic diagram of the expanded diagonally split moving plate of the present invention;

[0033] Figure 20 This is a schematic diagram of the casting mold for the reinforced flat plate casting of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Lower mold; 101. Inner side of lower mold retaining edge; 102. Bottom plane of lower mold; 103. Reinforcing rib mold core; 2. Upper mold; 201. Upper mold positioning plate; 202. Upper mold moving plate; 2011. Inclined edge of upper mold fixed plate; 2012. Positioning plate through slot; 2021. Outer side of upper mold moving plate; 2022. Inner inclined edge of upper mold moving plate; 203. Gap surface between moving plates; 2031. Casting rib between the inner inclined edges of upper mold moving plate; 204. Connecting screws of fixed and moving plates; 205. Pressing force of fixed and moving plates. 206. Spring; 207. Elastic force bearing column of moving plate; 208. Reset cam of moving plate; 209. Expansion spring of moving plate; 210. Vertical positioning pin of fixed and moving plate; 211. Load bearing column of moving plate expansion and contraction; 212. Camshaft; 213. Exposed gap between moving plates covering wedge; 214. Wedge pressure plate; 2023. Diagonally split moving plate; 3. Molten metal; 301. Flat casting with grid-like reinforcing ribs; 4. Casting ejector rod; 5. Ejection bracket. Detailed Implementation

[0036] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0037] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0038] Example 1

[0039] like Figures 1-6 As shown, Figure 1 The lower mold 1 is a flat plate with perimeter fencing, having a lower mold bottom plane 102 and an inner side 101 of the lower mold stop. The upper mold 2 has an upper mold positioning plate 201 and an upper mold moving plate 202. There are four upper mold moving plates 202, corresponding to the four corners of the lower mold 1. The upper mold moving plates 202 have outer side 2021. Figure 1 When the upper mold moving plate 202 retracts inward, the outer side 2021 of the upper mold moving plate and the inner side 101 of the lower mold stop are no longer in contact. After the molten metal 3 is poured into the lower mold 1, the upper mold 2 is lowered by the lifting system. Figure 1 Location, top view as follows Figure 2 As shown, then the upper mold moving plate 202 is as follows Figure 3 Move in the direction of the arrow until the outer side 2021 of each upper mold moving plate 202 and the inner side 101 of the lower mold stop edge are in contact. At this time, the side view is as follows. Figure 4 As shown, the top view of the upper mold positioning plate 201 is as follows: Figure 5 As shown, after the upper mold moving plate 202 expands, the upper mold 2 descends and closes with the lower mold 1. At this time, as... Figure 6 As shown, after the mold is closed, pressure can continue to be applied above the upper mold 2 to solidify the molten metal 3 under pressure, or vibration can be applied to the upper mold 2 or the lower mold 1 to solidify the molten metal 3 under vibration. A height positioning device is provided between the upper mold positioning plate 201 and the upper mold moving plate 202, such as... Figure 7 As shown, the upper mold moving plate 202 has screw holes, and the upper mold positioning plate 201 has open holes. Fixed-moving plate connecting screws 204 are screwed into the screw holes of the upper mold moving plate 202. A spring-loaded fixed-moving plate connecting screw 204 is located between the end flange plane of the fixed-moving plate connecting screw 204 and the plane of the upper mold positioning plate 201, allowing the upper mold positioning plate 201 and the upper mold moving plate 202 to elastically fit together. (Further details are needed for accurate translation.) Figure 9 As shown, the vertical positioning pin 209 of the fixed and moving plate is fixed to the upper mold moving plate 202. The end flange plane corresponds to the upper plane of the upper mold positioning plate 201, and there is a gap of 0.01-0.2mm to allow the upper mold positioning plate 201 and the upper mold moving plate 202 to move relative to each other in the horizontal direction. There is also a gap between the upper mold positioning plate 201 and the upper mold moving plate 202 to allow the upper mold moving plate 202 to connect. Figure 3 The arrowhead indicates a device that moves in the opposite direction, such as... Figure 7 and Figure 8 As shown, Figure 7 The movable plate elastic force bearing column 206 and the upper mold movable plate 202 are integrated. The upper mold positioning plate 201 has a positioning plate through groove 2012. The movable plate expansion cam 212 is as follows: Figure 8 The diagram shows a top view of the device. A fixed-moving plate compression spring 205 pushes the upper mold moving plate 202 toward the moving plate reset cam. When the upper mold moving plate 202 needs to expand outward, the moving plate reset cam 207 is rotated to the short side. Figure 8 (The middle part is aligned with the long side of the spring) and the alignment of the moving plate expansion spring 208 and Figure 8 The state rotates 90°, and the elastic force bearing column 206 of the moving plate drives the upper mold moving plate 202 to press down under the action of the moving plate expansion spring 208. Figure 3 The upper mold moving plate 202 moves in the direction of the arrow until the outer edge 2021 of the upper mold moving plate and the upper mold positioning plate 201 are in contact. When the upper mold moving plate 202 needs to be moved back, simply rotate the rotating moving plate reset cam 207 to... Figure 8 The position in the middle can cause the upper mold moving plate 202 to retract inward, allowing the upper mold moving plate 202 to translate relative to the upper mold positioning plate 201. Another solution is as follows: Figure 9 and Figure 10As shown, several movable plate expansion and contraction support columns 210 are fixed on the upper mold movable plate 202. Each upper mold positioning plate 201 corresponds to a camshaft 211 and a movable plate expansion cam 212. The camshaft 211 rotates vertically and the movable plate expansion cam 212 rotates synchronously, which can push the movable plate expansion and contraction support columns 210 to drive the upper mold movable plate 202 to translate. A return spring (not shown in the figure) pulls the movable plate expansion and contraction support columns 210 inward. When the movable plate expansion cam 212 rotates to the short side, the upper mold movable plate 202 automatically retracts. The inner inclined sides 2022 of the four upper mold movable plates 202 are... Figure 11 The slope in the middle causes the casting ribs 2031 to be cast between the inner inclined edges of the upper mold moving plate in the space between the inner sides of the gap surface 203 between the four moving plates, such as... Figure 12 As shown, when the casting shrinks inward, the inner inclined edge 2022 of the upper mold moving plate will not obstruct the shrinkage of the cast ribs. Figures 7-10 The upper part of the camshaft 211 can be equipped with sprockets, and then each sprocket is driven to rotate by a unified chain.

[0040] Example 2

[0041] Unlike Embodiment 1, the exposed gap between the moving plates covers the wedge 213, such as... Figures 15-17 As shown, the upper mold positioning plate 201 has an upper mold fixed plate inclined edge 2011, positioned relative to the gap between the two upper mold moving plates 202. The upper mold fixed plate inclined edge 2011 and the inner side 101 of the lower mold stop edge form a wedge space. The exposed gap between the moving plates covers the inclined wedge 213, which can move within this space. When the upper mold moving plate 202 expands outward, the exposed gap between the moving plates covers the inclined wedge 213. Figure 15 Moving the wedge 213 in the direction of the center arrow causes the exposed gap between the moving plates to be covered, so that the two sides of the wedge 213 are respectively in contact with the inclined edge 2011 of the upper mold fixed plate and the inner side 101 of the lower mold stop edge, thus covering the exposed gap between the two upper mold moving plates 202 (the part not covered by the upper mold positioning plate 201). Figure 16 The inclined wedge pressure plate 214 and the upper mold positioning plate 201 are fixed relative to each other in the vertical direction, and the exposed gap between the positioning moving plates covers the inclined wedge 213.

[0042] Example 3

[0043] Unlike Embodiment 1, the upper mold moving plate 202 is composed of two diagonally split moving plates 2023, with the moving and fitting direction as follows: Figure 18 As shown by the arrow above, Figure 19 This is a top view of the state after the moving plate 2023 and the moving plate expansion and contraction load-bearing column 210 are attached, divided diagonally.

[0044] Example 4

[0045] Unlike Example 1, as Figure 20As shown, the casting is a flat plate with reinforcing ribs. The flat side of the plate contacts the upper mold 2, and the side with reinforcing ribs faces down. Several reinforcing rib mold cores 103 are attached to the bottom plane of the lower mold 102. There are also casting ejection rods 4 and ejection brackets 5. The completed casting is shown in Figure 13.

[0046] Example 5

[0047] Based on the above embodiments, an upward pressure device is added to the upper mold to press the upper mold 2 downward and tighten the casting. The pressure device can be the direct pressure generated by the hydraulic cylinder, or the intermittent force generated by the impact pick impacting the upper mold, or the vibration force generated by the vibrator.

[0048] Example 6

[0049] Unlike Example 5, a vibrator is installed on the lower mold 1 to make the lower mold 1 vibrate, creating an intermittent pressure difference between the upper and lower molds, which compacts the casting.

[0050] The beneficial effects of this invention are as follows: an upper mold consisting of an upper mold positioning plate and several upper mold moving plates is provided, and a lower mold consisting of a flat plate and a surrounding barrier is provided. A driving mechanism drives the upper mold moving plates to expand outward and fit against the inner side of the lower mold inner barrier, thereby eliminating the side gap between the upper and lower molds and thus eliminating the overflow formed between the upper and lower molds. When the casting shrinks, the casting without overflow can shrink freely, avoiding the shrinkage resistance caused by overflow and eliminating the casting cracks caused by overflow.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A flat plate or a flat plate with single-sided reinforcing rib casting mold having a casting ejection mechanism, characterized by: The lower die is composed of a flat plate and a peripheral blocking part, and the upper die is composed of an upper die positioning plate and two or more upper die movable plates. The upper surface of the upper die movable plate is attached to the upper die positioning plate, and the lower surface is in contact with the casting. The peripheral edge of the upper die movable plate is divided into an outer side and a gap between the movable plates. The upper die positioning plate and the upper die movable plate have vertical elastic attachment devices or gap control devices to allow the upper die movable plate to move freely in the horizontal direction relative to the upper die positioning plate. The upper die movable plate has a driving mechanism that can drive the upper die movable plate to expand outward, allowing the outer side of the upper die movable plate to attach to the inner side of the lower die blocking part or to move in the opposite direction to reset.

2. The single-face ribbed slab or belt cast formwork according to claim 1, characterized in that: The upper die movable plate has a 4-block distribution.

3. The plate or belt single-face ribbed plate casting mold according to claim 1, characterized by: The upper die movable plate has a diagonal two-block distribution.

4. The single-face ribbed slab or belt cast formwork according to claim 1, characterized in that: The elastic attachment device between the upper die positioning plate and the upper die movable plate is a spring between the bolt flange fixed on the upper die positioning plate and the upper die fixed plate.

5. The single-face ribbed slab or belt cast formwork according to claim 1, characterized in that: The gap control between the upper die positioning plate and the upper die movable plate is a gap between the vertical positioning pins of the positioning plate, the fixed flange surface of the upper die positioning plate, and the upper die positioning flange plane.

6. The single-face ribbed slab or belt cast mold according to claim 1, characterized in that: The driving mechanism of the upper die movable plate relative to the upper die positioning plate is a cam drive with a spring reset or a spring drive with a cam reset.

7. The single-face ribbed slab or belt cast mold according to claim 1, characterized in that: The upper die positioning plate has an upper die positioning plate inclined surface that forms a wedge space with the inner side of the lower die blocking part. The exposed gap between the movable plates covers the wedge, and the wedge moves in the wedge space. When the inner side of the wedge contacts the inclined surface of the upper die positioning plate and the inner side of the lower die blocking part, the wedge blocks the gap between the two upper die movable plates that cannot be covered by the upper die positioning plate.

8. The single-face ribbed slab or belt cast mold according to claim 1, characterized in that: When the casting is a single-sided flat plate with reinforcing ribs, a number of mold cores are placed on the lower die bottom plane.

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