Synchronous lifting / lowering stability augmentation guide mechanism and casting device

By setting up a synchronous lifting mechanism in the four corners of the moving template, the casting strain problem caused by the unparalleled mold opening and closing of the mold is solved, and the mold is opened and closed smoothly and product quality is improved.

WO2025179612A1PCT designated stage Publication Date: 2025-09-04ZHEJIANG WANFENG TECH DEV CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
PCT/CN2024/080107
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 causes scratches and strains on the mold parting surface during the mold opening and closing moment, which affects product quality.

Method used

The synchronous lifting and stabilization guide mechanism is adopted. By setting up horizontal and vertical synchronous lifting mechanisms at the four corners of the moving template, the moving template is smooth and flat, and the torque is evenly transmitted to the four corners, avoiding the non-parallel phenomenon when the mold is opened and closed.

Benefits of technology

The tightening force of the mold is achieved evenly when opening the mold, avoiding the product being strained, and improving the product's pass rate and the flatness of the casting parting surface.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2024080107_04092025_PF_FP_ABST
    Figure CN2024080107_04092025_PF_FP_ABST
Patent Text Reader

Abstract

A synchronous lifting / lowering stability augmentation guide mechanism, comprising multi-surface racks (2) respectively mounted at four corners of a movable mold plate (1), wherein two pairs of opposite sides of the movable mold plate are respectively provided with transverse synchronous lifting / lowering mechanisms (3) and longitudinal synchronous lifting / lowering mechanisms (4); the transverse synchronous lifting / lowering mechanisms each comprise a transverse driving shaft (31) and transverse gear sets (32) respectively connected to two ends of the transverse driving shaft; the longitudinal synchronous lifting / lowering mechanisms each comprise a longitudinal driving shaft (41) and longitudinal gear sets (42) respectively connected to two ends of the longitudinal driving shaft; and gears of the transverse gear sets and gears of the longitudinal gear sets are respectively meshed with the corresponding multi-surface racks. Also provided is a casting device comprising the guide mechanism. According to said mechanism, torque is transmitted to the four corners of the movable mold plate by means of the transverse synchronous lifting / lowering mechanisms and the longitudinal synchronous lifting / lowering mechanisms, such that the movable mold plate can be ensured to lift or lower without tilting, achieving uniform clamping force during mold opening, preventing a product from being damaged due to pulling, and increasing the pass rate of the product.
Need to check novelty before this filing date? Find Prior Art

Description

Synchronous lifting and stabilizing guide mechanism and casting equipment Technical Field

[0001] The present invention relates to the technical field of synchronous lifting mechanisms, and in particular to a synchronous lifting stabilization guide mechanism; in addition, the present invention also relates to a casting device. Background Art

[0002] Casting equipment typically consists of upper and lower mold cavities. After casting, the equipment drives the upper mold cavity upward, simultaneously driving the casting out of the lower mold cavity, pulling the product out of the mold. The ejection mechanism then cooperates with the equipment to eject the casting from the mold and drop it onto the product receiving device, completing production. During this process, the moment of mold opening and closing is crucial. Traditional differential pressure casting equipment, due to non-parallel mold opening and instability, often causes scratches and strains on the casting parting surface, ultimately affecting product quality.

[0003] Summary of the Invention

[0004] To address the challenges of the prior art, at least one embodiment of the present invention provides a synchronous lifting and stabilizing guide mechanism that transmits torque to the four corners of the movable platen, ensuring smooth rise and fall. This ensures uniform clamping force during mold opening, preventing product damage and increasing product qualification rates. To this end, at least one embodiment of the present invention also provides casting equipment.

[0005] In the first aspect, an embodiment of the present invention proposes a synchronous lifting and stabilization guide mechanism, including a multi-sided rack respectively arranged at the four corners of the movable template, and two sets of opposite sides of the movable template are respectively provided with a transverse synchronous lifting mechanism and a longitudinal synchronous lifting mechanism. The transverse synchronous lifting mechanism includes a transverse drive shaft and a transverse gear set respectively connected to the two ends of the transverse drive shaft. The longitudinal synchronous lifting mechanism includes a longitudinal drive shaft and a longitudinal gear set respectively connected to the two ends of the longitudinal drive shaft. The gears of the transverse gear set and the longitudinal gear set are respectively engaged with the multi-sided rack.

[0006] In some embodiments, the present invention provides a synchronous lifting and stabilizing guide mechanism, in which the top of the movable plate is connected to an elevated frame, the transverse gear sets are respectively arranged at the four corners of the movable plate, and the longitudinal gear sets are respectively arranged at the four corners of the elevated frame.

[0007] In some embodiments, the present invention provides a synchronous lifting and stabilizing guide mechanism, wherein reinforcing ribs are provided around the elevated frame, one side of the reinforcing ribs is connected to the elevated frame, and the bottom of the reinforcing ribs is connected to the movable template.

[0008] In some embodiments, the present invention provides a synchronous lifting and stabilization guide mechanism, wherein the transverse gear set includes a transverse gear seat, the transverse gear seat is equipped with a rotatable transverse gear, and the transverse gear is meshed and connected with a multi-faceted rack; the longitudinal gear set includes a longitudinal gear seat, the longitudinal gear seat is equipped with a rotatable longitudinal gear, and the longitudinal gear is meshed and connected with a multi-faceted rack.

[0009] In some embodiments, the present invention provides a synchronous lifting and stabilization guide mechanism, in which the transverse gear seat is provided with a rotatable first lubrication gear, and the longitudinal gear seats are 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 and stabilization guide mechanism, wherein the top of the transverse gear seat is connected to a first bracket, and the first lubrication gear is installed on the first bracket; the top of the longitudinal gear seat is connected to a second bracket, and the second lubrication gear is installed on the second bracket.

[0011] In some embodiments, the present invention provides a synchronous lifting and stabilizing guide mechanism, 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.

[0012] In some embodiments, the present invention provides a synchronous lifting and stabilization guide mechanism, wherein the transverse drive axis and the longitudinal drive axis are parallel to each other.

[0013] In a second aspect, an embodiment of the present invention further provides a casting device, comprising the synchronous lifting and stabilization guide mechanism in the first aspect.

[0014] In some embodiments, the present invention provides a casting device comprising four vertically arranged columns, which are arranged at the four corners of the casting device; the columns are equipped with lifting devices, and the lifting ends of the lifting devices are connected to the four corners of the movable template.

[0015] It can be seen that the synchronous lifting and stabilizing guide mechanism and casting equipment of the embodiment of the present invention transmits the torque to the four corners of the movable template by respectively arranging a horizontal synchronous lifting mechanism and a longitudinal synchronous lifting mechanism on two sets of opposite sides of the movable template performing the lifting movement, thereby ensuring that the movable template can rise and fall smoothly, thereby making the clamping force uniform when the mold is opened, avoiding the product from being stretched, and increasing the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] FIG1 is a schematic structural diagram of a synchronous lifting and stabilization guide mechanism according to an embodiment of the present invention;

[0018] FIG2 is a zoomed schematic diagram of a detail I of FIG1 .

[0019] The reference numerals in the accompanying drawings are as follows:

[0020] Movable template 1, elevated frame 11, reinforcing rib 111, multi-sided rack 2, transverse synchronous lifting mechanism 3, transverse drive shaft 31, transverse gear set 32, transverse gear seat 321, transverse gear 3211, first lubrication gear 3212, first bracket 322, longitudinal synchronous lifting mechanism 4, longitudinal drive shaft 41, longitudinal gear set 42, longitudinal gear seat 421, longitudinal gear 4211, second lubrication gear 4212, second bracket 422, position adjustment mechanism 423, column 5, lifting device 51. Specific implementation plan

[0021] 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.

[0022] 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 "comprise", "include" or any other variants 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 restrictions, 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.

[0023] The technical terms in this article are explained as follows:

[0024] Column: Column is the component frame of casting equipment;

[0025] Raising frame: The raising frame makes the top of the dynamic template higher by one layer, which is convenient for the installation of the longitudinal synchronous lifting and stabilizing guide mechanism;

[0026] Position adjustment mechanism: The position adjustment mechanism is an electronic or cylinder-controlled gear clearance adjustment device. A telescopic device is provided in the position adjustment mechanism. The telescopic device is an electric telescopic rod or a cylinder telescope. 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 contraction of the telescopic device, thereby adjusting the gap between the gear and the meshing connection component.

[0027] [Example 1]

[0028] The inventors of this solution have found that in the prior art, the parting surface of the casting is often scratched and damaged due to reasons such as non-parallel opening and closing of the mold, which ultimately affects the product quality. The embodiments of the present invention provide the following solutions:

[0029] As shown in Figures 1 to 2, an embodiment of the present invention provides a synchronous lifting and stabilization guide mechanism, which is installed on a movable template 1 and includes a multi-sided rack 2 that is vertically arranged at the four corners of the movable template 1. Two sets of opposite sides of the movable template 1 are respectively provided with a horizontal synchronous lifting mechanism 3 and a longitudinal synchronous lifting mechanism 4. The horizontal synchronous lifting mechanism 3 includes a horizontal drive shaft 31 and a horizontal gear set 32 ​​respectively connected to the two ends of the horizontal drive shaft 31. The longitudinal synchronous lifting mechanism 4 includes a longitudinal drive shaft 41 and a longitudinal gear set 42 respectively connected to the two ends of the longitudinal drive shaft 41. The gears of the horizontal gear set 32 ​​and the longitudinal gear set 42 are respectively engaged with the multi-sided rack 2.

[0030] It should be noted that when the movable template 1 is performing lifting motion, the transverse gear set 32 ​​and the longitudinal gear set 42 at the four corners of the movable template 1 are performing lifting motion on the multi-sided rack 2 at the same time, so that the four corners of the movable template 1 can be lifted and lowered synchronously through the transverse synchronous lifting mechanism 3 and the longitudinal synchronous lifting mechanism 4, so that the overall force of the movable template 1 is evenly distributed, and the lifting and lowering are kept smooth.

[0031] Specifically, the top of the movable platen 1 is connected to an elevated frame 11 , the transverse gear sets 32 are respectively arranged at the four corners of the movable platen 1 , and the longitudinal gear sets 42 are respectively arranged at the four corners of the elevated frame 11 .

[0032] Furthermore, reinforcing ribs 111 are provided around the elevated frame 11, one side of the reinforcing rib 111 is connected to the elevated frame 11, and the bottom of the reinforcing rib 111 is connected to the movable template 1. It can be understood that the reinforcing rib 111 makes the connection between the elevated frame 11 and the movable template 1 more stable, avoiding safety hazards.

[0033] In other embodiments of the present invention, a reinforcement block may be installed around the elevated frame 11, one side of the reinforcement block being connected to the elevated frame 11, and the bottom of the reinforcement block being connected to the dynamic template 1. Those skilled in the art may flexibly install different types of reinforcement members according to actual needs to make the connection between the elevated frame 11 and the dynamic template 1 more stable.

[0034] The transverse gear set 32 ​​includes a transverse gear seat 321, which is equipped with a rotatable transverse gear 3211, and the transverse gear 3211 is meshed with the multi-faceted rack 2; the longitudinal gear set 42 includes a longitudinal gear seat 421, which is equipped with a rotatable longitudinal gear 4211, and the longitudinal gear 4211 is meshed with the multi-faceted rack 2.

[0035] It is understood that the transverse drive shaft 31 and the longitudinal drive shaft 41 are parallel to each other, and the torque is transmitted to the other side of the parallel surface through the transverse drive shaft 31 and the longitudinal drive shaft 41. The meshing torque between the transverse gear 3211 and the multi-faceted rack 2 and the meshing torque between the longitudinal gear 4211 and the multi-faceted rack 2 offset each other due to the asynchronous lifting of the two sides. It is understood that the multi-faceted rack 2 is a rack with teeth on both sides, and the transverse and longitudinal gears 3211 share the same rack for upward and downward movement. Two sets of gears are respectively configured at the four corners of the movable plate 1. In this way, the precision of the gear-rack meshing is evenly transmitted to the four corners of the movable plate 1 through the rigid interconnection of the transverse drive shaft 31 and the longitudinal drive shaft 41. At this time, the torque is mechanically balanced when the four corners of the movable plate 1 are raised and lowered.

[0036] In other embodiments of the present invention, the transverse gear seat 321 may be equipped with multiple, for example, two, three, or four, rotatable transverse gears 3211 meshing with the multi-faceted rack 2, thereby further improving accuracy. The longitudinal gear seat 421 may also be equipped with multiple, for example, two, three, or four, rotatable longitudinal gears 4211 meshing with the multi-faceted rack 2, thereby further improving accuracy. Those skilled in the art may flexibly install different numbers of transverse and longitudinal gears 3211 and 4211 according to actual needs.

[0037] Furthermore, the transverse gear seat 321 is provided with a rotatable first lubrication gear 3212 , and the longitudinal gear seat 421 is provided with a rotatable second lubrication gear 4212 . The first lubrication gear 3212 is meshed and connected with the transverse gear 3211 , and the second lubrication gear 4212 is meshed and connected with the longitudinal gear 4211 .

[0038] It should be noted that the lubricant can be applied to the first lubrication gear 3212 or the second lubrication gear 4212. During the lifting process of the movable template 1, the transverse gear 3211 drives the first lubrication gear 3212 to rotate, so that the lubricant is applied to the transverse gear 3211, and the longitudinal gear 4211 drives the second lubrication gear 4212 to rotate, so that the lubricant is applied to the longitudinal gear 4211.

[0039] Specifically, the top of the transverse gear seat 321 is connected to a first bracket 322 , and the first lubricating gear 3212 is mounted on the first bracket 322 . The top of the longitudinal gear seat 421 is connected to a second bracket 422 , and the second lubricating gear 4212 is mounted on the second bracket 422 .

[0040] In other embodiments of the present invention, a lubrication device can also be directly installed on the transverse gear seat 321 or the longitudinal gear seat 421, and lubricant can be automatically added to the transverse gear 3211 or the longitudinal gear 4212 through the lubrication device. Those skilled in the art can flexibly choose different lubricating methods to add lubricant to the transverse gear 3211 or the longitudinal gear 4212 according to actual needs.

[0041] Furthermore, the longitudinal gear seat 421 can be movably connected to the four corners of the elevated frame 11 , and a position adjustment mechanism 423 for adjusting the gap between the longitudinal gear 4211 and the multi-faceted rack 2 is provided on one side of the longitudinal gear seat 421 .

[0042] It should be noted that the position adjustment mechanism 423 pushes or stretches the longitudinal gear seat 421, which can make the longitudinal gear seat 421 move left and right, thereby adjusting the gap between the longitudinal gear 4212 and the multi-faceted rack 2, so that the gap can be adjusted according to the actual processing accuracy, avoiding the entire longitudinal synchronous lifting mechanism 4 from being stuck during movement due to processing accuracy deviation, thereby improving the safety performance of the equipment.

[0043] [Example 2]

[0044] The embodiment of the present invention also provides a casting device, which is suitable for a synchronous lifting and stabilizing guide mechanism as provided in Example 1. The casting device includes four vertically arranged columns 5, and the columns 5 are arranged at the four corners of the casting device; the columns 5 are equipped with a lifting device 51, and the lifting ends of the lifting device 51 are connected to the four corners of the movable template 1.

[0045] It should be noted that the movable platen 1 is a component of the opening and closing mold, on which the upper mold is mounted. The lifting device 51 uses a cylinder. 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 a cylinder installed on the equipment, which solves the shortcoming of insufficient mold opening force of the cylinder. This device is equipped with a cylinder drive at the four corners of the movable platen 1. The cylinder lifts the movable platen 1 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.

[0046] It can be understood that by using the lifting device 51 to lift the movable template 1 at the four corners of the casting equipment at the same time, a great mold opening force can be provided. Combined with the horizontal synchronous lifting mechanism 3 and the longitudinal synchronous lifting mechanism 4, the movable template 1 can be lifted and lowered synchronously at the four corners during the lifting process, maintaining smooth rising and falling, so that the clamping force is uniform when the mold is opened, avoiding product damage, improving the flatness of the casting parting surface, and increasing the product qualification rate.

[0047] In other embodiments of the present invention, the lifting device 51 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.

[0048] In the specific implementation, the lifting device 51 is used to simultaneously lift and close the movable template 1 at the four corners of the casting equipment, and then cooperates with the horizontal synchronous lifting mechanism 3 and the longitudinal synchronous lifting mechanism 4 to make the four corners of the movable template 1 rise and fall synchronously during the lifting process, so that the clamping force is uniform when the mold is opened, avoiding product damage, improving the flatness of the casting parting surface, and increasing the product qualification rate.

[0049] In summary, embodiments 1-2 of the present invention provide a synchronous lifting and stabilizing guide mechanism and casting equipment, by respectively arranging a horizontal synchronous lifting mechanism and a longitudinal synchronous lifting mechanism on two sets of opposite sides of the movable template performing lifting movement, the torque is transmitted to the four corners of the movable template, ensuring that the movable template can rise and fall smoothly, thereby making the clamping force uniform when the mold is opened, avoiding the product from being stretched and increasing the product qualification rate.

[0050] 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.

[0051] 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.

[0052] 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 and stabilization guide mechanism, characterized in that: The invention comprises a multi-faceted rack (2) respectively installed at the four corners of a movable plate (1); two groups of opposite sides of the movable plate (1) are respectively provided with a transverse synchronous lifting mechanism (3) and a longitudinal synchronous lifting mechanism (4); the transverse synchronous lifting mechanism (3) comprises a transverse driving shaft (31) and a transverse gear set (32) respectively connected to the two ends of the transverse driving shaft (31); the longitudinal synchronous lifting mechanism (4) comprises a longitudinal driving shaft (41) and a longitudinal gear set (42) respectively connected to the two ends of the longitudinal driving shaft (41); the gears of the transverse gear set (32) and the longitudinal gear set (42) are respectively meshed with the multi-faceted rack (2).

2. The synchronous lifting and stabilization guide mechanism according to claim 1, characterized in that: The top of the movable plate (1) is connected to an elevated frame (11), the transverse gear sets (32) are respectively arranged at the four corners of the movable plate (1), and the longitudinal gear sets (42) are respectively arranged at the four corners of the elevated frame (11).

3. The synchronous lifting and stabilization guide mechanism according to claim 2, characterized in that: A reinforcing rib (111) is provided around the elevated frame (11), one side of the reinforcing rib (111) is connected to the elevated frame (11), and the bottom of the reinforcing rib (111) is connected to the movable template (1).

4. The synchronous lifting and stabilization guide mechanism according to claim 2, characterized in that: The transverse gear set (32) includes a transverse gear seat (321), the transverse gear seat (321) is equipped with a rotatable transverse gear (3211), and the transverse gear (3211) is meshed with the multi-faceted rack (2); the longitudinal gear set (42) includes a longitudinal gear seat (421), the longitudinal gear seat (421) is equipped with a rotatable longitudinal gear (4211), and the longitudinal gear (4211) is meshed with the multi-faceted rack (2).

5. The synchronous lifting and stabilization guide mechanism according to claim 4, characterized in that: The transverse gear seat (321) is provided with a rotatable first lubrication gear (3212), and the longitudinal gear seat (421) is provided with a rotatable second lubrication gear (4212). The first lubrication gear (3212) is meshed and connected with the transverse gear (3211), and the second lubrication gear (4212) is meshed and connected with the longitudinal gear (4211).

6. The synchronous lifting and stabilization guide mechanism according to claim 5, characterized in that: The top of the transverse gear seat (321) is connected to a first bracket (322), and the first lubricating gear (3212) is installed on the first bracket (322); the top of the longitudinal gear seat (421) is connected to a second bracket (422), and the second lubricating gear (4212) is installed on the second bracket (422).

7. The synchronous lifting and stabilization guide mechanism according to claim 4, characterized in that: The longitudinal gear seat (421) can be movably connected to the four corners of the elevated frame (11), and a position adjustment mechanism (423) for adjusting the gap between the longitudinal gear (4211) and the multi-faceted rack (2) is provided on one side of the longitudinal gear seat (421).

8. The synchronous lifting and stabilization guide mechanism according to claim 1, characterized in that: The transverse drive shaft (31) and the longitudinal drive shaft (41) are parallel to each other.

9. A casting device, characterized in that: It comprises the synchronous lifting and stabilization guide mechanism as described in any one of claims 1-9.

10. The casting equipment according to claim 9, characterized in that It comprises four vertically arranged columns (5), wherein the columns (5) are arranged at the four corners of the casting equipment; the columns (5) are installed with lifting devices (51), and the lifting ends of the lifting devices (51) are connected to the four corners of the movable template (1).

Citation Information

Patent Citations

  • Low-pressure casting machine for large thin-wall part production

    CN117282942A

  • Moving die synchronizing mechanism of low-pressure casting machine

    CN117300100A

  • Improved formwork erecting mechanism

    CN209792425U

  • Low-pressure casting machine with gear and rack transmission mechanism

    CN210098934U

  • Automobile hub gravity-pressurizing casting apparatus, casting system and casting method

    WO2016110235A1