Synchronous-lifting casting device

By introducing synchronous lifting and mold clamping locking mechanisms into differential die casting equipment, the problems of insufficient mold opening force and sealing are solved, and the uniform tightening and sealing of the mold are achieved, and product quality and equipment reliability are improved.

WO2025179611A1PCT designated stage Publication Date: 2025-09-04ZHEJIANG WANFENG TECH DEV CO LTD
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Patent Information

Application Number
PCT/CN2024/080106
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-27
Filing Date
2024-03-05
Publication Date
2025-09-04

AI Technical Summary

Technical Problem

Traditional differential die casting equipment has shortcomings in mold opening force, running stability and mold sealing, which leads to problems such as strain and air leakage during casting production.

Method used

Synchronous lift casting equipment is adopted, and by setting a synchronous lifting mechanism and a mold clamping locking mechanism at the four corners of the equipment, ensuring uniform clamping force when the mold is opened, improving the sealing ability, thereby improving the rigidity and stability of the equipment.

Benefits of technology

It improves the uniformity of mold opening, avoids casting strain, enhances the sealing of the equipment, and improves the product yield and the stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

A synchronous-lifting casting device, comprising a device body (1), wherein the inside of the device body is provided with a movable mold plate (2) connected to an upper mold (21) and a worktable plate (3) connected to a lower mold (31), and the four corners of the device body are each fitted with a mold-closing locking mechanism (4) and a vertically-arranged synchronous lifting mechanism (5), a lifting end of each synchronous lifting mechanism being connected to one corner of the movable mold plate, and two sets of opposite sides of the movable mold plate each being provided with a transverse synchronous lifting mechanism (6) and a longitudinal synchronous lifting mechanism (7). By means of the provision of a synchronous lifting mechanisms on each of the four corners, and the provision of a transverse synchronous lifting mechanism and a longitudinal synchronous lifting mechanism on each of the two sets of opposite sides of the movable mold plate, the synchronous-lifting casting device ensures that the movable mold plate can ascend and descend horizontally, such that the holding force during mold opening is uniform, and the sealing performance during the filling of a mold and a sealed tank is high, thereby enhancing the rigidity of the device, improving the mechanical performance, increasing the stability and reliability of the device, and improving product pass rates.
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Description

Synchronous lifting casting equipment Technical Field

[0001] The present invention relates to the technical field of casting equipment, and in particular to a synchronous lifting casting equipment. Background Art

[0002] Differential pressure casting is a casting method derived from low-pressure casting. Based on low-pressure casting, a sealed tank is added to the outer cavity of the mold. Compressed air is then pumped in to increase the pressure. During liquid filling, the pressure of the gas in the holding furnace is increased to a higher level than that in the mold. This allows the molten metal to fill, maintain, and increase pressure, just as in low-pressure casting. However, the casting crystallizes and solidifies under higher pressure, resulting in a higher-density casting.

[0003] However, traditional differential pressure casting equipment needs further improvement in terms of mold opening force, operating smoothness, and mold sealing. The mold opening force is particularly critical; the mold must have sufficient opening force to ensure smooth opening during casting production. When inflating the tank, traditional differential pressure casting equipment generates a significant reaction force due to its large internal area. The hydraulic cylinder clamping method cannot meet the required mold closing force. Due to non-parallel and unstable mold openings, the parting surface of the casting is often scratched and strained, ultimately affecting product quality.

[0004] Summary of the Invention

[0005] In order to solve the problems existing in the prior art, at least one embodiment of the present invention provides a synchronous lifting casting device, so that the clamping force is uniform when the mold is opened, and the mold and the sealed tank body are strongly sealed when filling, thereby improving the rigidity of the equipment, improving the mechanical properties, increasing the stability and reliability of the equipment, and improving the yield rate of the product.

[0006] An embodiment of the present invention proposes a synchronous lifting casting device, including an equipment body, wherein a movable template connected to the upper mold and a work table connected to the lower mold are provided in the equipment body, and a mold locking mechanism and a vertically arranged synchronous lifting mechanism are respectively installed at the four corners of the equipment body, and the lifting ends of the synchronous lifting mechanism are respectively connected to the four corners of the movable template, and two groups of opposite sides of the movable template are respectively provided with a horizontal synchronous lifting mechanism and a longitudinal synchronous lifting mechanism.

[0007] In some embodiments, the present invention provides a synchronous lifting casting device, the device body includes a base, four vertically arranged columns and a top beam, one end of the column is connected to the four corners of the base, and the other end of the column is connected to the top beam.

[0008] In some embodiments, the present invention provides a synchronous lifting casting equipment, in which the columns are provided with multi-sided racks, and the top of the movable template is connected to an elevated frame; the horizontal synchronous lifting mechanism includes a horizontal drive shaft and a horizontal gear seat, and the two ends of the horizontal drive shaft are respectively connected to the horizontal gear seats, and the horizontal gear seats are respectively arranged at the four corners of the movable template; the horizontal gear seat is equipped with a rotatable horizontal gear, and the horizontal gear is meshed with the multi-sided rack; the longitudinal synchronous lifting mechanism includes a longitudinal drive shaft and a longitudinal gear seat, and the two ends of the longitudinal drive shaft are respectively connected to the longitudinal gear seats, and the longitudinal gear seats are respectively arranged at the four corners of the elevated frame; the longitudinal gear seat is equipped with a rotatable longitudinal gear, and the longitudinal gear is meshed with the multi-sided rack.

[0009] In some embodiments, the present invention provides a synchronous lifting casting device, in which the transverse gear seat is provided with a rotatable first lubrication gear, and the longitudinal gear seat is provided with a rotatable second lubrication gear, the first lubrication gear is meshed and connected with the transverse gear, and the second lubrication gear is meshed and connected with the longitudinal gear.

[0010] In some embodiments, the present invention provides a synchronous lifting casting device, in which the longitudinal gear seat can be movably connected to the four corners of the elevated frame, and a position adjustment mechanism for adjusting the gap between the longitudinal gear and the multi-faceted rack is provided on one side of the longitudinal gear seat.

[0011] In some embodiments, the present invention provides a synchronous lifting casting equipment, in which the mold locking mechanism includes a wedge-shaped locking device and a wedge-shaped locking block, the wedge-shaped locking devices are respectively arranged at the four corners of the movable template, and the wedge-shaped locking block is arranged on the column; the wedge-shaped locking device includes a locking head and a driver for driving the locking head to extend, and the bottom inclined surface of the wedge-shaped locking block corresponds to the top inclined surface of the locking head.

[0012] In some embodiments, the present invention provides a synchronous lifting casting device, wherein the column is provided with a safety gear rod, and the safety gear rod is provided with a plurality of tooth-shaped bayonet holes corresponding to the lock head.

[0013] In some embodiments, the present invention provides a synchronous lifting casting equipment, and the synchronous lifting mechanism includes a slide rail, a lifting device, an adjusting nut and a locking bolt. The lifting device is arranged on the column, and the lifting end of the lifting device is provided with a positioning step and an external thread compatible with the adjusting nut, and the top of the adjusting nut is provided with a threaded through hole compatible with the locking bolt; the slide rail is provided on the column, and the four corners of the movable template are respectively provided with a first slider connected to the slide rail, and the four corners of the worktable are respectively provided with a second slider connected to the slide rail.

[0014] In some embodiments, the present invention provides a synchronous lifting casting equipment, in which the four corners of the worktable are respectively provided with a first floating seat, the second slider is connected to the second floating seat, the first floating seat and the second floating seat are respectively provided with corresponding floating grooves, and floating blocks are provided in the floating grooves; the movable template is provided with a locking buckle for locking the adjusting nut.

[0015] In some embodiments, the present invention provides a synchronous lifting casting device, in which the four corners of the movable template are respectively provided with vertically downward work table lifting hooks, the work table lifting hooks are provided with at least one locking port, and a locking device is installed at the bottom of the work table, and the locking head of the locking device corresponds to the locking port.

[0016] It can be seen that a synchronous lifting casting equipment in an embodiment of the present invention transmits torque to the four corners of the movable template by arranging synchronous lifting mechanisms at the four corners of the equipment and arranging horizontal synchronous lifting mechanisms and longitudinal synchronous lifting mechanisms on two sets of opposite sides of the movable template, thereby ensuring that the movable template can rise and fall smoothly, so that the clamping force is uniform when the mold is opened, avoiding the product from being stretched and increasing the product qualification rate; by arranging mold closing and locking mechanisms at the four corners of the equipment, the sealing of the mold and the sealed tank body during filling is improved, and the equipment is improved. Leakage of air and liquid caused by uneven force is improved, thereby improving the rigidity of the equipment as a whole, improving the mechanical properties, increasing the stability and reliability of the equipment, and improving the product yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] FIG1 is a schematic structural diagram of a synchronous lifting casting device according to an embodiment of the present invention;

[0019] FIG2 is a zoomed schematic diagram of a detail I of FIG1 ;

[0020] FIG3 is a zoomed schematic diagram of detail II of FIG1 ;

[0021] FIG4 is a zoomed schematic diagram of detail III of FIG1 ;

[0022] FIG5 is a schematic diagram showing a locking head being engaged with a wedge-shaped locking block according to an embodiment of the present invention;

[0023] FIG6 is a schematic diagram showing a lock head being engaged with a toothed buckle according to an embodiment of the present invention;

[0024] FIG7 is a schematic diagram of a synchronous lifting mechanism according to an embodiment of the present invention;

[0025] FIG8 is a schematic diagram showing the structure of the floating seat according to an embodiment of the present invention.

[0026] The reference numerals in the accompanying drawings are as follows:

[0027] Equipment body 1, base 11, holding furnace 111, column 12, multi-faceted rack 121, safety gear bar 122, toothed bayonet 1221, top beam 13, movable plate 2, upper mold 21, heightening frame 22, work table lifting hook 23, lock 231, work table 3, lower mold 31, first floating seat 32, second floating seat 33, floating groove 34, floating block 341, mold clamping locking mechanism 4, wedge locking device 41, lock head 411, driver 412, wedge locking block 4 2. Synchronous lifting mechanism 5, slide rail 51, first slider 511, second slider 512, lifting device 52, adjusting nut 53, locking bolt 54, horizontal synchronous lifting mechanism 6, horizontal drive shaft 61, horizontal gear seat 62, horizontal gear 621, first lubrication gear 622, longitudinal synchronous lifting mechanism 7, longitudinal drive shaft 71, longitudinal gear seat 72, longitudinal gear 721, second lubrication gear 722, position adjustment mechanism 73, product cooling water tank 8, product ejection mechanism 9. Specific implementation plan

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. In this document, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0030] The technical terms in this article are explained as follows:

[0031] Moving platen: The moving platen is a component of the opening and closing mold and is loaded with the upper mold;

[0032] Column: The column is the component frame of the equipment body;

[0033] Raising frame: The raising frame makes the top of the moving template higher by one layer, which is convenient for the installation of the longitudinal synchronous lifting mechanism;

[0034] Position adjustment mechanism: The position adjustment mechanism is an electronic or cylinder-controlled gear clearance adjustment device. A telescopic device is provided inside the position adjustment mechanism. The telescopic device is an electric telescopic rod or a cylinder telescoping device. The telescopic end of the telescopic device is connected to the gear mounting seat. The position of the gear mounting seat is adjusted by controlling the extension and retraction of the telescopic device, thereby adjusting the clearance between the gear and the meshing connection component.

[0035] Mortise lock device: A mortise lock device is an electronic or cylinder controlled lock that drives the lock head to extend or retract by switching on and off the current or outputting the lifting end of the cylinder to achieve the locking function.

[0036] The inventors of this solution have found that in the prior art, the mold opening force, running stability, mold sealing, etc. of traditional differential pressure casting equipment need to be further improved. In particular, the mold opening force of the casting equipment is the most critical factor. The mold must have sufficient mold opening force to ensure that it can be opened smoothly during casting production. When the tank body of the traditional differential pressure casting equipment is inflated, a huge reaction force will be formed due to the large area inside the tank body. The clamping force cannot be met by the oil cylinder. Due to the non-parallel mold opening and instability, the parting surface of the casting is often scratched and strained, which ultimately affects the product quality. The embodiment of the present invention provides the following solution:

[0037] As shown in Figure 1, an embodiment of the present invention provides a synchronous lifting casting device, including an equipment body 1, in which a movable template 2 connected to the upper mold 21 and a worktable 3 connected to the lower mold 31 are provided. The four corners of the equipment body 1 are respectively installed with a mold locking mechanism 4 and a vertically arranged synchronous lifting mechanism 5. The lifting ends of the synchronous lifting mechanism 5 are respectively connected to the four corners of the movable template 2, and the two sets of opposite sides of the movable template 2 are respectively provided with a horizontal synchronous lifting mechanism 6 and a longitudinal synchronous lifting mechanism 7.

[0038] It should be noted that by using the synchronous lifting mechanism 5 to simultaneously lift the movable platen 2 at the four corners of the equipment body 1, a great mold opening force can be provided. In combination with the horizontal synchronous lifting mechanism 6 and the vertical synchronous lifting mechanism 7, the movable platen 2 can be lifted and lowered synchronously at the four corners during the lifting process, maintaining a smooth rise and fall, thereby making the clamping force uniform when the mold is opened, avoiding product damage, improving the flatness of the casting parting surface, and increasing the product qualification rate. When closing the mold, the mold locking mechanism 4 at the four corners can greatly increase the sealing of the mold, improving the situation of air leakage and liquid leakage caused by uneven force on the equipment.

[0039] Specifically, the device body 1 includes a base 11 , four vertically arranged columns 12 and a top beam 13 . One end of the column 12 is connected to the four corners of the base 11 , and the other end of the column 12 is connected to the top beam 13 .

[0040] As shown in Figure 2, the column 12 is provided with a multi-faceted rack 121, and the top of the movable template 2 is connected to the elevated frame 22. The horizontal synchronous lifting mechanism 6 includes a horizontal drive shaft 61 and a horizontal gear seat 62. The two ends of the horizontal drive shaft 61 are respectively connected to the horizontal gear seat 62, and the horizontal gear seat 62 is respectively provided at the four corners of the movable template 2. The horizontal gear seat 62 is installed with a rotatable horizontal gear 621, and the horizontal gear 621 is meshed and connected with the multi-faceted rack 121. The longitudinal synchronous lifting mechanism 7 includes a longitudinal drive shaft 71 and a longitudinal gear seat 72. The two ends of the longitudinal drive shaft 71 are respectively connected to the longitudinal gear seat 72, and the longitudinal gear seat 72 is respectively provided at the four corners of the elevated frame 22. The longitudinal gear seat 72 is installed with a rotatable longitudinal gear 721, and the longitudinal gear 721 is meshed and connected with the multi-faceted rack 121.

[0041] It should be noted that the torque is transmitted to the other side of the parallel plane through the transverse drive shaft 61 and the longitudinal drive shaft 71, and the meshing torque between the transverse gear 621 and the multi-faceted rack 121, as well as the meshing torque between the longitudinal gear 721 and the multi-faceted rack 121, offset each other due to the asynchronous lifting of the two sides. It can be understood that the multi-faceted rack 121 is a rack with teeth on both sides, and the transverse and longitudinal gears share the same rack for upward and downward movement. Two sets of gears are respectively configured at the four corners of the movable plate 2. In this way, the transverse drive shaft 61 and the longitudinal drive shaft 71 are rigidly interconnected, and the precision of the gear and rack meshing is evenly transmitted to the four corners of the movable plate 2. At this time, the torque is mechanically balanced when the four corners of the movable plate 2 are raised and lowered, so the mold can be stably raised and lowered.

[0042] In other embodiments of the present invention, the transverse gear holder 62 may be equipped with multiple, for example, two, three, or four, rotatable transverse gears 621 meshing with the multi-faceted rack 121, thereby further improving accuracy. The longitudinal gear holder 72 may also be equipped with multiple, for example, two, three, or four, rotatable longitudinal gears 721 meshing with the multi-faceted rack 121, thereby further improving accuracy. Those skilled in the art may flexibly install different numbers of transverse and longitudinal gears 621 according to actual needs.

[0043] Furthermore, the transverse gear seat 62 is provided with a rotatable first lubrication gear 622 , and the longitudinal gear seat 72 is provided with a rotatable second lubrication gear 722 . The first lubrication gear 622 is meshed and connected with the transverse gear 621 , and the second lubrication gear 722 is meshed and connected with the longitudinal gear 721 .

[0044] It should be noted that the lubricant can be applied to the first lubrication gear 622 or the second lubrication gear 722. During the lifting process of the movable template 2, the transverse gear 621 drives the first lubrication gear 622 to rotate, so that the lubricant is applied to the transverse gear 621, and the longitudinal gear 721 drives the second lubrication gear 722 to rotate, so that the lubricant is applied to the longitudinal gear 721.

[0045] In other embodiments of the present invention, a lubrication device can also be directly installed on the transverse gear seat 62 or the longitudinal gear seat 72, and lubricant can be automatically added to the transverse gear 621 or the longitudinal gear 721 through the lubrication device. Those skilled in the art can flexibly choose different lubricating methods to add lubricant to the transverse gear 621 or the longitudinal gear 721 according to actual needs.

[0046] Furthermore, the longitudinal gear seat 72 can be movably connected to the four corners of the elevated frame 22 , and a position adjustment mechanism 73 for adjusting the gap between the longitudinal gear 721 and the multi-faceted rack 121 is provided on one side of the longitudinal gear seat 72 .

[0047] It should be noted that the position adjustment mechanism 73 pushes or stretches the longitudinal gear seat 72, which can make the longitudinal gear seat 72 move left and right, thereby adjusting the gap between the longitudinal gear 721 and the multi-faceted rack 121, so that the gap can be adjusted according to the actual processing accuracy, avoiding the entire longitudinal synchronous lifting mechanism 7 from being stuck during movement due to processing accuracy deviation, thereby improving the safety performance of the equipment.

[0048] As shown in Figure 7, the synchronous lifting mechanism 5 includes a slide rail 51, a lifting device 52, an adjusting nut 53 and a locking bolt 54. The lifting device 52 is arranged on the column 12, and the lifting end of the lifting device 52 is provided with a positioning step and an external thread compatible with the adjusting nut 53, and the top of the adjusting nut 53 is provided with a threaded through hole compatible with the locking bolt 54; the slide rail 51 is provided on the column 12, and the four corners of the movable template 2 are respectively provided with a first slider 511 that cooperates with the slide rail 51, and the four corners of the worktable 3 are respectively provided with a second slider 512 that cooperates with the slide rail 51.

[0049] It should be noted that the lifting device 52 uses an oil cylinder. The size of the mold opening force of the casting equipment is the most critical factor. The mold must have sufficient mold opening force to ensure that it can be opened smoothly during casting production. In order to improve the mold opening and closing force of the casting equipment, this device uses an oil cylinder installed on the equipment, which solves the problem of insufficient mold opening force of the oil cylinder. This device is equipped with oil cylinder drives at the four corners of the movable template 2. The oil cylinder lifts the movable template in a positive manner. The four-corner drive can provide greater output force, while greatly reducing the height of the equipment, making it convenient for on-site layout and maintenance of the equipment. The slide rail 51 guides the movable template 2, improving the accuracy of the movable template 2 during the lifting process.

[0050] In other embodiments of the present invention, the lifting device 52 may also be a hydraulic lift, etc., and those skilled in the art may flexibly select different types of lifting devices according to actual needs.

[0051] It is understood that when the movable platen 2 is driven by the four corner lifting mechanisms 52, the lifting mechanisms 52 cannot be guaranteed to retract to their full height. To ensure parallelism during mold closing and the precise spacing between the movable platen and the worktable 3 after mold closing, which is crucial for the sealing of the casting tank and directly impacts the product density, an adjustable, self-locking adjusting nut 53 and locking bolt 54 are added to the lifting end of the oil lifting mechanism 521. Height adjustment plates can be placed between the positioning steps of the movable platen 2 and the lifting end of the lifting mechanism 52, allowing for fine-tuning of the balance of the four corners of the movable platen 2. When the adjusting nut 53 is installed at the lifting end of the lifting mechanism 52, the locking bolt 54 is screwed into the adjusting nut 53. After the locking bolt 54 is screwed into the adjusting nut 53, it presses against the lifting end of the lifting mechanism 52, thereby securing the adjusting nut 53. A gap is provided between the adjusting nut 53 and the movable platen 2 to prevent uneven force on the four corners of the movable platen 2 due to machining accuracy, further ensuring sealing.

[0052] Furthermore, the movable template 2 is provided with a locking buckle 24 for locking and clamping the adjusting nut 53. After the adjusting nut 53 is fixed, the locking buckle 24 is used to further fix the adjusting nut 53, thereby effectively preventing the adjusting nut 53 from loosening and avoiding safety hazards.

[0053] In other embodiments of the present invention, nut anti-rotation blocks can also be set at the four corners of the movable template 2. A groove body that is adapted to the shape of the adjusting nut 53 is set inside the nut anti-rotation block. When the adjusting nut 53 is fixed, the nut anti-rotation block is put on the adjusting nut 53. The bottom of the nut anti-rotation block is fixed to the four corners of the movable template 2 by bolts. Technical personnel in this field can flexibly select different types of parts according to actual needs to prevent the adjusting nut 53 from loosening.

[0054] Furthermore, as shown in Figures 4 and 8, the four corners of the workbench 3 are respectively provided with a first floating seat 32, the second slider 512 is connected to the second floating seat 33, the first floating seat 32 and the second floating seat 33 are respectively provided with corresponding floating grooves 34, and a floating block 341 is provided in the floating groove 34.

[0055] It should be noted that one side of the floating block 341 can be connected to the inner wall of one side of the floating groove 34 in the first floating seat 32, and one side of the floating block 341 can also be connected to the inner wall of one side of the floating groove 34 in the second floating seat 33. The floating block 341 can also not be connected to the floating groove 34 in the first floating seat 32 or the floating groove 34 in the second floating seat 33. The above three methods can all make the first floating seat 32 in a floating state relative to the second floating seat 33.

[0056] The workbench 3 is fixed in a floating manner, which solves the problem of the second slider 512 being stuck due to excessive force applied to the slide rail 51 when the workbench 3 moves. The workbench 3 does not need to ensure position accuracy during the rising process, but it needs to ensure that the table can be raised and lowered stably.

[0057] Furthermore, the four corners of the movable template 2 are respectively provided with vertical downward worktable lifting hooks 23, and the worktable lifting hooks 23 are provided with at least one lock port 231. A locking device is installed at the bottom of the worktable 3, and the lock head of the locking device corresponds to the lock port.

[0058] It should be noted that when the insulation furnace 111 at the bottom needs to be maintained, the movable template 2 is lowered to a suitable position, the locking device inserts the lock head into the lock port 231, and the movable template 2 is raised while the workbench 3 is also lifted, so that the insulation furnace 111 can be easily maintained and replaced.

[0059] In other embodiments of the present invention, a hook with a lock can also be provided at the lifting end of the lifting device 52. When the work table 3 needs to be stretched, the locking device inserts the lock head into the lock of the hook; a lifter for lifting the work table 3 can also be installed on the surface of the base 11. Those skilled in the art can flexibly choose different methods to lift the work table 3 according to actual needs.

[0060] As shown in Figures 3, 5, and 6, the mold clamping locking mechanism 4 includes a wedge-shaped locking device 41 and a wedge-shaped locking block 42. The wedge-shaped locking device 41 is respectively installed at the four corners of the movable platen 2, and the wedge-shaped locking block 42 is installed on the column 12. The wedge-shaped locking device 41 includes a locking head 411 and a driver 412 that drives the locking head to extend. The bottom inclined surface of the wedge-shaped locking block 42 corresponds to the top inclined surface of the locking head 411.

[0061] It should be noted that when the tank body of the device is inflated, a huge reaction force will be generated due to the large area inside the tank body. The clamping method of the lifting device 52 cannot meet the mold clamping force. The device is equipped with a four-combination mold locking mechanism 4. The four-corner arrangement provides a balanced locking force to ensure the sealing of the mold during the filling process. When the mold is closed, the movable plate 2 drops to the mold closing height, and the driver 412 drives the lock head 411 to extend. At this time, the top inclined surface of the lock head 411 is just stuck by the bottom inclined surface of the wedge-shaped locking block 42, so that the movable plate 2 is locked. In addition, the wedge-shaped locking block 42 is fixed by bolts. When the wedge-shaped locking block 42 is deformed after long-term use, the wedge-shaped locking block 42 can be replaced by loosening the bolts, which is very convenient.

[0062] In other embodiments of the present invention, locking blocks of other shapes and locking heads compatible with the locking blocks may also be used, such as rectangular locking blocks, trapezoidal locking blocks, etc. Those skilled in the art can flexibly select different types of locking blocks and locking heads compatible with the locking blocks according to actual needs.

[0063] Furthermore, the column 12 is provided with a safety gear rod 122 , and the safety gear rod 122 is provided with a plurality of tooth-shaped bayonet holes 1221 corresponding to the lock head 411 .

[0064] It should be noted that when the equipment is opening the mold, the movable platen 2 needs to ensure the safety of manual operation. The extended lock head 411 is stuck in the toothed bayonet 1221 to ensure that the movable platen 2 is locked after the mold is opened, ensuring that the equipment does not slip due to unexpected circumstances. It is understandable that the bottom wall of the toothed bayonet 1221 corresponds to the bottom lower flat opening of the lock head 411. When the lock head 411 is extended after the mold is opened, the bottom lower flat opening of the lock head 411 is stuck by the bottom wall of the toothed bayonet 1221, thereby preventing the movable platen 2 from accidentally falling.

[0065] In the specific implementation, the movable template 2 is lifted and closed at the four corners of the equipment body 1 at the same time through the synchronous lifting mechanism 5, and then the horizontal synchronous lifting mechanism 6 and the longitudinal synchronous lifting mechanism 7 are used to make the four corners of the movable template 2 rise and fall synchronously during the lifting process. After the movable template 2 is in place, it is locked by the mold locking mechanism 4. After the model is formed, the product is ejected by the product ejection mechanism 9, and the ejected product is placed in the product cooling water tank 8 for cooling.

[0066] In summary, an embodiment of the present invention provides a synchronous lifting casting device, which transmits torque to the four corners of the movable template by arranging synchronous lifting mechanisms at the four corners of the equipment and arranging horizontal synchronous lifting mechanisms and longitudinal synchronous lifting mechanisms on two sets of opposite sides of the movable template, thereby ensuring that the movable template can rise and fall smoothly, so that the clamping force is uniform when the mold is opened, avoiding the product from being stretched and increasing the product qualification rate; by arranging mold closing and locking mechanisms at the four corners of the equipment, the sealing of the mold and the sealed tank body during filling is improved, and the equipment is improved. Leakage of air and liquid caused by uneven force is improved, thereby improving the rigidity of the equipment as a whole, improving the mechanical properties, increasing the stability and reliability of the equipment, and improving the product yield rate.

[0067] The above content is only a specific embodiment of the present application, and the protection scope of the present application is not limited thereto. Those skilled in the art may make changes or substitutions within the technical scope disclosed in the present application, and these changes or substitutions should all be within the protection scope of the present application.

[0068] Those skilled in the art will appreciate that although some embodiments described herein include some features and not others included in other embodiments, the combination of features from different embodiments is intended to be within the scope of the invention and to form different embodiments.

[0069] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A synchronous lifting casting device, comprising a device body (1), wherein a movable platen (2) connected to an upper mold (21) and a work table (3) connected to a lower mold (31) are provided in the device body (1), characterized in that: The four corners of the equipment body (1) are respectively equipped with a mold clamping mechanism (4) and a vertically arranged synchronous lifting mechanism (5); the lifting ends of the synchronous lifting mechanism (5) are respectively connected to the four corners of the movable plate (2); and the two opposite sides of the movable plate (2) are respectively equipped with a horizontal synchronous lifting mechanism (6) and a vertical synchronous lifting mechanism (7).

2. The synchronous lifting casting equipment according to claim 1, characterized in that: The device body (1) comprises a base (11), four vertically arranged columns (12) and a top beam (13), one end of each column (12) being connected to four corners of the base (11), and the other end of each column (12) being connected to the top beam (13).

3. The synchronous lifting casting equipment according to claim 2, characterized in that: The column (12) is provided with a multi-faceted rack (121), and the top of the movable plate (2) is connected to an elevated frame (22); the horizontal synchronous lifting mechanism (6) includes a horizontal drive shaft (61) and a horizontal gear seat (62), the two ends of the horizontal drive shaft (61) are respectively connected to the horizontal gear seat (62), and the horizontal gear seat (62) is respectively arranged at the four corners of the movable plate (2); the horizontal gear seat (62) is installed with a rotatable horizontal gear (621), and the horizontal gear ( 621) is meshed and connected with the multi-faceted rack (121); the longitudinal synchronous lifting mechanism (7) includes a longitudinal driving shaft (71) and a longitudinal gear seat (72), the two ends of the longitudinal driving shaft (71) are respectively connected to the longitudinal gear seat (72), and the longitudinal gear seat (72) is respectively arranged at the four corners of the elevated frame (22); the longitudinal gear seat (72) is equipped with a rotatable longitudinal gear (721), and the longitudinal gear (721) is meshed and connected with the multi-faceted rack (121).

4. The synchronous lifting casting equipment according to claim 3, characterized in that: The transverse gear seat (62) is provided with a rotatable first lubrication gear (622), and the longitudinal gear seat (72) is provided with a rotatable second lubrication gear (722). The first lubrication gear (622) is meshed and connected with the transverse gear (621), and the second lubrication gear (722) is meshed and connected with the longitudinal gear (721).

5. The synchronous lifting casting equipment according to claim 3, characterized in that: The longitudinal gear seat (72) can be movably connected to the four corners of the elevated frame (22), and a position adjustment mechanism (73) for adjusting the gap between the longitudinal gear (721) and the multi-faceted rack (121) is provided on one side of the longitudinal gear seat (72).

6. The synchronous lifting casting equipment according to claim 2, characterized in that: The mold clamping locking mechanism (4) includes a wedge-shaped locking device (41) and a wedge-shaped locking block (42), wherein the wedge-shaped locking device (41) is respectively arranged at the four corners of the movable plate (2), and the wedge-shaped locking block (42) is arranged on the column (12); the wedge-shaped locking device (41) includes a locking head (411) and a driver (412) for driving the locking head to extend, and the bottom inclined surface of the wedge-shaped locking block (42) corresponds to the top inclined surface of the locking head (411).

7. The synchronous lifting casting equipment according to claim 6, characterized in that: The upright post (12) is provided with a safety toothed rod (122), and the safety toothed rod (122) is provided with a plurality of tooth-shaped bayonet holes (1221) corresponding to the lock head (411).

8. The synchronous lifting casting equipment according to claim 2, characterized in that: The synchronous lifting mechanism (5) includes a slide rail (51), a lifting device (52), an adjusting nut (53) and a locking bolt (54); the lifting device (52) is arranged on the column (12); the lifting end of the lifting device (52) is provided with a positioning step and an external thread adapted to the adjusting nut (53); the top of the adjusting nut (53) is provided with a threaded through hole adapted to the locking bolt (54); the slide rail (51) is arranged on the column (12); the four corners of the movable template (2) are respectively provided with a first slider (511) adapted to be connected to the slide rail (51); the four corners of the workbench (3) are respectively provided with a second slider (512) adapted to be connected to the slide rail (51).

9. The synchronous lifting casting equipment according to claim 8, characterized in that: The four corners of the workbench (3) are respectively provided with a first floating seat (32), the second slider (512) is connected to the second floating seat (33), the first floating seat (32) and the second floating seat (33) are respectively provided with corresponding floating grooves (34), and a floating block (341) is provided in the floating groove (34); the movable plate (2) is provided with a locking buckle (24) for locking and clamping the adjusting nut (53).

10. The synchronous lifting casting equipment according to claim 1, characterized in that: The four corners of the movable platen (2) are respectively provided with vertically downward worktable lifting hooks (23), the worktable lifting hooks (23) are provided with at least one locking opening (231), and a locking device is installed at the bottom of the worktable (3), and the locking head of the locking device corresponds to the locking opening.

Citation Information

Patent Citations

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