Extrusion casting device for flat plate with reinforcing ribs

Abstract

The invention discloses a flat plate squeeze casting device with reinforcing ribs, which comprises a lower die assembly, an upper die, an upper die lifting device, a vibration impact device, a lower die assembly, a lower die body and a plurality of die cores, the lower die body is provided with a bottom plane and a peripheral fence, the bottom plane of each die core is attached to the bottom plane of the lower die body, and a mutual fixing device is arranged between the bottom plane of each die core and the bottom plane of the lower die body. The fixing device has two states of mutually fixing the reinforcing rib mold core and the reinforcing rib mold core and releasing mutual fixation, the impact pickaxe is used for impacting or the vibration device is used for vibrating, the casting mold can realize large-area extrusion casting without a mold closing or extrusion force bearing frame in traditional extrusion casting equipment, and meanwhile, a plurality of reinforcing rib mold cores are arranged on the mold plane; and the mold core can move along with the solidification and shrinkage of the casting, so that the problem of casting edge explosion caused by large size of the mold core in the extrusion casting process is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to a casting device, in particular to a flat plate extrusion casting device with reinforcing ribs. BACKGROUND

[0002] There are many needs for flat plate castings with reinforcing ribs in engineering applications, but currently it is not possible to do so due to the limitations of die casting and extrusion casting equipment, and because the thermal shrinkage of large flat castings is large, the mold core cannot be made of a metal core with good rigidity, so currently large-area flat plate castings with reinforcing ribs can only be cast using the normal pressure sand casting method. SUMMARY

[0003] In order to solve the above problems, the present application provides a flat plate extrusion casting device with reinforcing ribs, which can effectively solve the deficiencies in the prior art.

[0004] The present application is realized by the following technical solutions: including a lower mold combination, an upper mold, an upper mold lifting device, a vibration and impact device, a lower mold combination, a lower mold body, and a plurality of mold cores, the lower mold body has a bottom plane and a peripheral surrounding, the mold core has a bottom plane and a bottom plane of the lower mold body, and there is a mutual fixing device between the two, the fixing device has two states of mutual fixation and mutual release, the lower mold body has a plurality of through holes perpendicular to the bottom plane, the through holes are aligned with the position of the reinforcing ribs, each through hole has a push rod, and there is a push rod support, each push rod is fixed with the push rod support, and there is a pushing device to push the push rod support to drive each push rod to move up and down, the upper mold lifting device drives the upper mold to move up and down, the fixing device fixes the lower mold body and each mold core, the upper mold rises after the upper mold rises, the metal liquid is poured into the lower mold, the upper mold descends after the mold is closed, the fixing device releases the relative fixation between the lower mold body and each mold core, and the metal liquid begins to cool and shrink, each mold core can move with the shrinkage of the casting, the impact or vibration device drives the upper mold or the lower mold to vibrate, the upper mold rises after the casting is completed, the fixing device fixes the lower mold body and each mold core, the pushing device pushes the push rod support upward, and each push rod pushes the casting out of the lower mold combination.

[0005] As a preferred technical solution: the impact pick impacts the upper mold.

[0006] As a preferred technical solution: the impact pick can be an electric pneumatic pick, a power machine pneumatic pick, an air compressor pneumatic pick, or a hydraulic impact pick.

[0007] As a preferred technical solution: the impact pick can be placed relatively fixed or floating to the upper mold.

[0008] As a preferred technical solution: the vibrator is fixed on the upper mold.

[0009] As a preferred technical solution: the vibrator is fixed on the lower mold.

[0010] As a preferred technical scheme: the positioning pin and the vertical direction positioning pull pin machine can be used for positioning and releasing positioning between the mold core and the multi-mold core lower mold.

[0011] As a preferred technical scheme: the hydraulic or pneumatic cylinder can be used for fixing and releasing fixing between the mold core and the multi-mold core lower mold through the pull rod control.

[0012] As a preferred technical scheme: the push rod through hole position is aligned with the position of the reinforced rib after contraction.

[0013] As a preferred technical scheme: the upper mold lifting device and the upper mold are connected by a hanging rope or a spring.

[0014] The beneficial effects of the present application are: the impact pick directly impacts the upper mold instead of the hydraulic power extrusion head in the extrusion casting process, and the force bearing frame in the extrusion casting device is cancelled, and at the same time, the impact force of the impact pick can make the casting compensate, or the upper mold or the lower mold is driven to vibrate by the vibration device. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 Schematic diagram of an aluminum alloy casting capable of being pressure cast or extrusion cast as background technology;

[0017] Figure 2 Top view of an aluminum alloy casting capable of being pressure cast or extrusion cast as background technology;

[0018] Figure 3 Schematic diagram of an aluminum alloy casting capable of being pressure cast or extrusion cast as background technology;

[0019] Figure 4 Schematic diagram of an aluminum alloy casting capable of being pressure cast or extrusion cast as background technology;

[0020] Figure 5 Schematic diagram of an aluminum alloy casting capable of being pressure cast or extrusion cast as background technology;

[0021] Figure 6 Schematic diagram of a multi-mold core extrusion casting mold without a force bearing frame as the present application;

[0022] Figure 7 Schematic diagram of a multi-mold core extrusion casting mold core positioning lock release as the present application;

[0023] Figure 8 Schematic diagram of the impact process of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0024] Figure 9 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0025] Figure 10 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0026] Figure 11 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0027] Figure 12 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0028] Figure 13 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0029] Figure 14 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0030] Figure 15 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0031] Figure 16 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0032] Figure 17 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0033] Figure 18 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0034] Figure 19 Schematic diagram of the multi-mold core non-load-bearing frame extrusion casting of the present application;

[0035] Explanation of reference signs:

[0036] 1, Die casting or squeeze casting part drawing; 2, Die casting squeeze casting will explode edge two drawing; 3, Die casting squeeze casting edge explosion with grid reinforcement part drawing; 4, Squeeze casting part drawing; 401, Cross rib formed by the gap between the edge plate; 5, Lower die assembly; 501, Lower die seat; 502, Die core; 5011, Lower die positioning pin hole; 5012, Lower die pull rod through hole; 5013, Lower die core fitting plane; 5021, Die core positioning pin hole; 5023, Die core and lower die fitting plane; 6, Upper die; 601, Upper die plate with impact force transmission block; 6011, Coupling screw; 6012, Impact force transmission block positioning baffle; 602, Impact force transmission block; 7, Lower die core block positioning pin; 8, Lower die core block vertical pull pin; 801, Die core vertical positioning pin flange connecting rod; 802, Die core vertical positioning pin flange plane; 9, Ejector rod support; 10, Ejector rod; 11, Impact pick support; 12, Impact pick sleeve; 13, Impact pick; 14, Lower die core vertical tensioning kit; 1401, Pull rod; 1402, Pull pin; 1403, Oil cylinder; 1404, Door-shaped pressure bearing plate; 15, Vibrator; 16, Lower die vibrator connecting plate. DETAILED DESCRIPTION

[0037] All features disclosed in this specification, and / or all steps of any methods or processes disclosed in this specification, can be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0038] Any feature disclosed in this specification, unless stated otherwise, can be replaced by alternative features serving the same, equivalent or similar purpose.

[0039] Example 1

[0040] For large area plate with grid reinforcement casting, the casting is as shown in Figure 5 for building exterior wall plate, the cast aluminum piece is 3 meters high, 4 meters wide, the reinforcement spacing is as shown in Figure 1 , the reinforcement thickness is 10 millimeters, and the flat plate thickness is 5 millimeters, as shown in Figure 6 , the lower die 5 is composed of a multi-die core lower die 501 and a plurality of die cores 502, the multi-die core lower die 501 has a lower die core fitting plane 5013, and the die core 502 is fitted with the lower die fitting plane 5023, and the die core 502 can be translated on the lower die core fitting plane 5013 plane, the multi-die core lower die 501 and the die core 502 respectively have corresponding positioning pin holes, and the die core positioning pin 7 is inserted into the positioning pin hole before pouring the metal liquid into the mold, and the die core positioning pin 7 is pulled out after pouring the metal liquid, the upper die 6 and the upper die lifting device are connected by a hanging rope, the upper die 6 is gap fitted between the outer shape and the lower die, after the upper die 6 is lowered, as shown in Figure 7As shown, the groups of impact picks 13 start to impact, as Figure 8 As shown, after the castings are solidified, the upper mold 6 and the impact pick 13 device are raised, as Figure 9 As shown, the push rod support 9 is pushed upward, driving the several casting push rods 10 to push the extrusion casting parts Figure 4 The push-out multi-mold core lower mold 501 is pushed out, and the casting process is completed. The combination details of the multi-mold core lower mold 501 and the mold core 502 are as shown in Figures 12-14 As shown, the multi-mold core lower mold positioning pin hole 5011 and the mold core positioning pin hole 5021 are aligned, the multi-mold core lower mold pull rod passes through the hole 5012, the mold core 502 is in the hole 5012, the lower mold core block vertical pull pin 8 is installed below the mold core 502, the lower surface of the mold core 502 has a mold core and multi-mold core lower mold matching plane 5023 and a mold core vertical positioning pin flange plane 802 of the lower mold core block vertical pull pin 8, the distance between them is H1, H1 is greater than the thickness H2 of the part matched with the multi-mold core lower mold 501, which is about 0.05mm, the part of the mold core vertical positioning pin flange connecting rod 801 on the lower mold core block vertical pull pin 8 has a diameter D1, which is matched with the diameter D2 of the multi-mold core lower mold pull rod passing hole 5012 on the multi-mold core lower mold 501, the single-sided gap between D2 and D1 must be greater than the movement amount of the mold core moving inward due to the shrinkage of the castings, and in this embodiment Figure 5 Taking the outer wall cast aluminum plate as an example, there are 10*8=80 cores, the maximum distance between two opposite corners is 5 meters, and the maximum core displacement of two opposite corners is 10mm, so the maximum single-sided gap of D2 and D1 in the direction of the shrinkage of the castings must be greater than 10mm, and the size of a single cavity is 400*375mm 2 Each cavity corresponds to a 65-type electric pick, and in this embodiment, a 65-type electric pick produced by Wenzhou Fengba Electric Tool Co., Ltd. is used. In actual use, the electric pick is modified, the switch is uniformly pressed, and the electric pick is uniformly controlled by PLC. An electric pick sleeve 12 is added to the outside of the electric pick, as shown in Figure 6 As shown, there is a gap between the electric pick sleeve 12 and the inner hole of the bracket 11 for the free movement of the electric pick. The electric pick and the bracket 11 can also be fixed. In addition to the electric pick, oil pressure picks, air pressure picks, and power machine picks can also be used to replace the impact function of the electric pick. After casting is completed, a push-out mechanism (not shown in the figure) drives the push rod support 9 and the casting push rod 10 to rise and push the castings upward.

[0041] In addition to connecting with a hanging rope, the upper mold and the upper mold lifting device can also be connected with a spring, so that the upper mold can be impacted or vibrated when it is in a free state.

[0042] The impact pick 13 is used to transmit the impact force to the liquid metal and semi-solid core metal through the upper die 6, effectively solving the problem of edge explosion of large planar castings with grid-shaped reinforcing ribs. For example, the casting in this embodiment is 12 square meters. The normal extrusion casting force bearing frame 1 must bear a force of more than 120,000 tons. It is difficult to achieve in actual engineering applications. However, the use of impact pick extrusion can effectively solve this problem. Meanwhile, the mold core and the mold are arranged to move with the shrinkage of the casting, effectively solving the problem of pressure casting of large-area plate castings with reinforcing ribs.

[0043] Embodiment 2

[0044] Different from embodiment 1, the vertical positioning method of the mold core is different, as shown in Figure 15 , the lower mold core vertical tensioning kit 14 is used instead of the lower mold core block vertical pull pin 8. The lower mold core vertical tensioning kit 14 is composed of a pull rod 1401, a pull pin 1402 and an oil cylinder 1403. The pull rod 1401 has an upper part fixedly connected with the mold core 502 and a lower part with a blind hole. The end of the blind hole has a door-shaped pressure bearing plate 1404. The blind hole has a pull pin 1402 head. The lower part of the pull pin 1402 has an oil cylinder 1403 or an air cylinder control. When the oil cylinder 1403 or the air cylinder is pressed downward, the head of the pull pin 1402 presses the door-shaped pressure bearing plate 1404, and the mold core 502 is pressed tightly on the multi-mold core lower mold 501. When the oil cylinder 1403 or the air cylinder is pressed upward, the pull pin 1402 is loosened, and the mold core 502 can move relative to the multi-mold core lower mold 501. When the casting ejection rod 10 pushes out the extrusion casting part upward Figure 4 , the pull pin 1402 tightens the mold core 502. The single-sided gap between the pull pin 1402, the pull rod 1401, the door-shaped pressure bearing plate 1404, the pull rod 1401 and the lower mold pull rod of the multi-mold core lower mold 501 meets the rule that each part does not interfere when the mold core is at the maximum displacement.

[0045] Embodiment 3

[0046] Different from embodiment 2, the relative positioning of the mold core 502 and the multi-mold core lower mold 501 before pouring the liquid metal does not need the lower mold positioning pin hole 5011 and the mold core positioning pin hole 5021 as well as the lower mold core block positioning pin 7 in Figure 12 . After the mold cores 502 are placed in the correct position, the oil cylinder 1403 in Figure 15 is used to press the mold core 502 tightly on the plane of the multi-mold core lower mold 501 through the pull pin 1402, the door-shaped pressure bearing plate 1404 and the pull rod 1401. After pouring is completed, the oil cylinder 1403 is loosened, the pressing force between the mold core 502 and the multi-mold core lower mold 501 is eliminated, and the mold core 502 can move with the shrinkage of the casting. After the casting is completed, the oil cylinder 1403 presses the mold core 502 and the multi-mold core lower mold 501 tightly, the ejection rod support 9 and the casting ejection rod 10 are raised to eject the casting from the mold, and the casting is completed.

[0047] Embodiment 4

[0048] The upper mold structure differs from that of Example 1, such as... Figure 11 As shown, the upper mold 3 is composed of an upper template 601 with impact force transmission blocks and several impact force transmission blocks 602. Each impact force transmission block 602 has an independent component 1 above it. The effect of this embodiment is that the mutual interference of impact forces between various impact picks is reduced, resulting in higher impact efficiency. The specific structure is as follows: Figure 17 As shown, the upper template 601 and the impact force transmission block 602 are fixedly connected by a connecting screw 6011, as follows: Figure 17 As shown, the upper template 601 with the impact force transmission block has a fixed impact force transmission block positioning baffle 6012 that positions the impact force transmission block 602 in the horizontal direction.

[0049] Example 5

[0050] Unlike Example 1, using Figure 18 The vibrator 15 in this embodiment replaces the impact pick 13 in Example 1. This embodiment uses the Byes-12K intelligent fully automatic vibration aging machine produced by Bangyi Precision Measuring Instrument (Shanghai) Co., Ltd., equipped with a DC permanent magnet motor vibrator with a rated power of 1KW and a maximum excitation force of 10KN.

[0051] Example 6

[0052] Unlike Example 5, as Figure 19 As shown, the vibrator 15 is mounted on the lower mold assembly 5 and is fixed together with the lower mold assembly 5 on the lower mold vibrator connecting plate 16. Alternatively, the vibrator 15 and the lower mold 501 can be directly fixedly connected.

[0053] The beneficial effects of this invention are: by using an impact pick or a vibration device, the casting mold can achieve large-area extrusion casting without the need for a mold closing or extrusion pressure bearing frame in traditional extrusion casting equipment. Simultaneously, several reinforcing rib cores are set on the mold plane and can move with the solidification and shrinkage of the casting, solving the problem of edge bursting in the extrusion casting process caused by large core dimensions.

[0054] 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 plate extrusion casting apparatus with reinforcing ribs, characterized by: The invention relates to a die casting machine, comprising a lower die assembly, an upper die, an upper die lifting device, a vibration and impact device, a lower die assembly, a lower die body and a plurality of die cores, the lower die body has a bottom plane and a peripheral wall, the die core has a bottom plane and the bottom plane of the lower die body is attached to each other, and there is a mutual fixing device between the two, the fixing device has two states of mutual fixation and mutual release, the lower die body has a plurality of through holes perpendicular to the bottom plane, the through holes are aligned with the position of the reinforcing ribs, each through hole has a push rod, and there is a push rod support, each push rod is fixed to the push rod support, and there is a pushing device that can push the push rod support to drive each push rod to move up and down, the upper die lifting device drives the upper die to move up and down, the fixing device fixes the lower die body and each die core, after the upper die rises and the molten metal is poured into the lower die, the upper die is lowered to close the mold, the fixing device releases the relative fixation between the lower die body and each die core, the molten metal begins to cool and shrink, each die core can move with the shrinkage of the casting, the impact or vibration device drives the upper die or the lower die to vibrate, after the casting is completed, the upper die rises before the mold is removed, the fixing device fixes the lower die body and each die core, the pushing device pushes the push rod support upwards to drive each push rod to eject the casting from the lower die assembly.

2. The belt rib flat plate extrusion casting device according to claim 1, characterized by: The impact pick impacts the upper die.

3. The ribbed slab squeeze casting apparatus according to claim 2, characterized by: The impact pick can be an electric pneumatic pick, a power machine pneumatic pick, an air compressor pneumatic pick or a hydraulic impact pick.

4. The belt rib flat plate extrusion casting device according to claim 2 or 3, characterized by: The impact pick can be relatively fixed to the upper die or placed floatingly.

5. The ribbed slab squeeze casting apparatus according to claim 1, characterized in that: The vibrator is fixed to the upper die.

6. The ribbed slab squeeze casting apparatus according to claim 1, characterized by: The vibrator is fixed to the lower die.

7. The ribbed slab squeeze casting apparatus according to claim 1, characterized by: The die core and the multi-die core lower die can be positioned and released by positioning pins and vertical direction positioning draw lugs.

8. The ribbed slab squeeze casting apparatus according to claim 1, characterized by: The die core and the multi-die core lower die can be fixed and released by hydraulic or pneumatic cylinders through draw bars.

9. The ribbed slab squeeze casting apparatus according to claim 1, characterized in that: The push rod through hole position is aligned with the position of the reinforcing ribs after shrinkage.

10. The ribbed slab squeeze casting apparatus according to claim 1, characterized in that: The upper die lifting device and the upper die are connected by a rope or a spring.

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