High-stability casting mold with limiting device
By designing a casting mold including a base device, a lifting device and an ejection device, the top die clamping is driven by hydraulic cylinder and piston pillar, and the mold limit is achieved through hydraulic oil extrusion limit rod, the problem of insufficient automatic limit of existing molds is solved, and the casting stability and automation are improved.
Patent Information
- Application Number
- CN202422195410.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing casting molds lack the lifting design of the automatic limit mold during the mold clamping process, resulting in a low degree of automation, affecting the stability of mold casting.
A casting mold including a base device, a lifting device and an ejection device is designed. The piston pillar is driven down by the hydraulic cylinder, which drives the top mold and the ejection device to fall simultaneously, and the piston pillar and the oil cylinder are in a relatively stationary state, realizing the mold clamping between the top mold and the bottom mold. Subsequently, the hydraulic oil is forced to enter the oil tank along the oil pipe, and the pressure increases, and the limit rod in the limit sleeve is squeezed, so that it is inserted into the side holes of the bottom die and the top die, realizing the limit of the mold.
Automatic limiting during mold clamping is achieved, and the stability of mold casting and the degree of automation of the device are improved. After casting, the hydraulic cylinder pulls the piston pillar and resets it, pulls back the limit rod through the spring to release the mold limit, completes the mold opening process, and improves the smoothness and linkage of the device.
Smart Images
Figure CN223011875U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of die design for casting parts of mining machinery, and particularly relates to a casting die with high stability and a limiting device. Background Technique
[0002] Mining machinery refers to various mechanical equipment used in the process of mining. They are used to extract mineral resources from the earth's crust. There are various types of mining machinery. According to different mining stages and different types of minerals, the development trend of mining machinery is towards large-scale, high-efficiency, automation and environmental protection. With the progress of technology, the performance of mining machinery has been continuously improved, which can better meet the needs of mining and reduce the impact on the environment at the same time.
[0003] Since mining machinery mostly uses large-sized parts for manufacturing, during the casting process of such parts, it is necessary to additionally limit the die. The existing casting dies lack the design of automatically limiting the lifting of the die body during the die closing process, and the degree of automation of the device is relatively low. Content of the Utility Model
[0004] The purpose of the utility model is to provide a casting die with high stability and a limiting device to solve the problems existing in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A casting die with high stability and a limiting device, including a base device. A lifting device is arranged on the top of the base device, and two ejecting devices are symmetrically arranged on both sides of the lifting device; the lifting device includes a top die. A number of second side holes are symmetrically arranged on both sides of the top die. An oil cylinder is fixedly arranged on the top of the top die. Two oil pipes are symmetrically and fixedly arranged on both sides of the oil cylinder. A piston column is slidably arranged on the top of the oil cylinder. A bottom limiting plate is fixedly arranged at the bottom end of the piston column. A top limiting plate is fixedly arranged at the top end of the piston column. A hydraulic cylinder is installed on the top of the top limiting plate; the ejecting device includes an oil tank. A number of limiting sleeves are symmetrically and evenly fixedly arranged up and down inside the oil tank. A limiting rod is slidably arranged in the middle of the limiting sleeve. A spring is fixedly arranged at one end of the limiting rod.
[0007] Further: The base device includes a bottom die. Four support rods are evenly and fixedly arranged at the four corners on the upper surface of the bottom die. A number of first side holes are symmetrically arranged on both sides of the bottom die.
[0008] Further: The top die is slidably connected with the support rods.
[0009] Further: The limiting rods are respectively inserted and pulled out and connected with the bottom die and the top die.
[0010] Further: The fuel tank is bolted to the top mold.
[0011] Further: The spring is bolted to the fuel tank, and the oil pipe is flange-connected to the fuel tank.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. When starting processing, the hydraulic cylinder extends, driving the piston column to descend. At the same time, under the influence of the self-weight of the oil cylinder, the top mold and the ejection device, they descend synchronously. The piston column and the oil cylinder are in a relatively static state. The top mold finally fits the bottom mold under the guidance of the support rod to complete mold closing. At this time, the oil cylinder no longer moves downward under the support at the bottom. As the hydraulic cylinder continues to extend, the piston column is gradually pushed into the oil cylinder, and the hydraulic oil in the oil cylinder is forced to enter the fuel tank along the oil pipe. The pressure in the fuel tank increases, squeezing the limit rod in the limit sleeve and stretching the spring, so that the limit rod horizontally moves and inserts into the first side holes on both sides of the bottom mold and the second side holes on both sides of the top mold respectively, connecting the limit bottom mold and the top mold to make it difficult to move up and down, realizing mold limiting. Through the design of setting the piston column to press the hydraulic oil to flow out the limit rod, the mold is automatically connected and limited after mold closing, ensuring the stability of mold casting, and at the same time improving the automation degree of the device;
[0014] 2. After casting, the hydraulic cylinder pulls the piston column to reset. The piston column first slides along the top of the oil cylinder. At this time, the top mold does not move. The space occupied by the piston column in the oil cylinder decreases, and the pressure in the fuel tank decreases. The spring pulls back the limit rod by its elastic force, releasing the limit on both sides of the mold. When the bottom limit plate contacts the oil cylinder, it starts to drive the top mold to rise, completing the mold opening process. Through the design of setting the bottom limit plate to lift the oil cylinder for mold opening, the lifting of the top mold is delayed, so that the recovery of the limit rod and the rising of the top mold are carried out separately, avoiding the situation that the limit rod cannot be retracted in time when the top mold rises, further improving the smoothness of the device during operation. At the same time, the overall mold closing, mold opening and side limiting are all controlled by the lifting of the hydraulic cylinder, and the device has stronger linkage. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0016] Figure 1 is a schematic structural diagram of a casting mold with high stability and a limiting device according to the present utility model;
[0017] Figure 2 is a schematic structural diagram of the base device of a casting mold with high stability and a limiting device according to the present utility model;
[0018] Figure 3 is a partial cross-sectional view of the lifting device of a casting mold with high stability and a limiting device according to the present utility model;
[0019] Figure 4 is a partial cross-sectional view of the ejection device of a casting mold with high stability and a limiting device according to the present utility model.
[0020] In the attached drawings: 1. Base device; 101. Bottom mold; 102. Support rod; 103. First side hole; 2. Lifting device; 201. Top mold; 202. Second side hole; 203. Oil cylinder; 204. Oil pipe; 205. Piston rod; 206. Bottom limit plate; 207. Top limit plate; 208. Hydraulic cylinder; 3. Ejection device; 301. Fuel tank; 302. Limit sleeve; 303. Limit rod; 304. Spring. Detailed implementation manners
[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.
[0023] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figures 1 - 4 , a casting mold with high stability and a limiting device, including a base device 1. A lifting device 2 is arranged on the top of the base device 1, and two ejecting devices 3 are symmetrically arranged on both sides of the lifting device 2.
[0025] In this embodiment: The base device 1 includes a bottom mold 101. Four support rods 102 are evenly and fixedly arranged at the four corners on the upper surface of the bottom mold 101. A number of first side holes 103 are symmetrically arranged on both sides of the bottom mold 101. The top mold 201 finally fits the bottom mold 101 under the guidance of the support rods 102 to complete mold closing.
[0026] In this embodiment: The lifting device 2 includes a top mold 201. A number of second side holes 202 are symmetrically arranged on both sides of the top mold 201. An oil cylinder 203 is fixedly arranged on the top of the top mold 201. Two oil pipes 204 are symmetrically and fixedly arranged on both sides of the oil cylinder 203. A piston column 205 is slidably arranged on the top of the oil cylinder 203. A bottom limiting plate 206 is fixedly arranged at the bottom end of the piston column 205. A top limiting plate 207 is fixedly arranged at the top end of the piston column 205. A hydraulic cylinder 208 is installed on the top limiting plate 207. The top mold 201 is slidably connected with the support rods 102. The hydraulic oil is stored in the oil cylinder 203, the oil pipes 204 and the fuel tank 301. The hydraulic cylinder 208 is installed on the ceiling. The piston column 205 is fixed on the bottom surface of the hydraulic cylinder 208 through the top limiting plate 207. The bottom limiting plate 206 is stuck on the top of the oil cylinder 203. The weights of the oil cylinder 203, the top mold 201 and the ejecting device 3 are all supported by the bottom limiting plate 206. When starting processing, the hydraulic cylinder 208 extends, driving the piston column 205 to descend. At the same time, under the influence of the self-weights of the oil cylinder 203, the top mold 201 and the ejecting device 3, they synchronously descend. The piston column 205 and the oil cylinder 203 are in a relatively static state. At this time, the oil cylinder 203 no longer moves downward under the support of the bottom. As the hydraulic cylinder 208 continues to extend, the piston column 205 is gradually pushed into the oil cylinder 203, and the hydraulic oil in the oil cylinder 203 is forced to enter the fuel tank 301 along the oil pipes 204.
[0027] In this embodiment: The ejection device 3 includes an oil tank 301. Inside the oil tank 301, a number of limiting sleeves 302 are symmetrically and uniformly fixed up and down. A limiting rod 303 is slidably arranged in the middle of the limiting sleeve 302. One end of the limiting rod 303 is fixedly provided with a spring 304. The limiting rod 303 is respectively inserted and connected to the bottom die 101 and the top die 201 in a pluggable manner. The oil tank 301 is bolted to the top die 201. The spring 304 is bolted to the oil tank 301. The oil pipe 204 is flange-connected to the oil tank 301. The hydraulic oil in the oil cylinder 203 is forced to enter the oil tank 301 along the oil pipe 204. The pressure in the oil tank 301 increases, squeezing the limiting rod 303 in the limiting sleeve 302 and stretching the spring 304, so that the limiting rod 303 respectively laterally moves into the first side holes 103 on both sides of the bottom die 101 and the second side holes 202 on both sides of the top die 201, connecting the bottom die 101 and the top die 201 to make it difficult to move up and down, realizing the die limiting. Through the design of setting the piston column 205 to press the hydraulic oil to flow out the limiting rod 303, the die is automatically connected and limited after the mold closing, ensuring the stability of die casting, and at the same time improving the automation degree of the device. After casting, the hydraulic cylinder 208 pulls the piston column 205 to reset. First, the piston column 205 slides along the top of the oil cylinder 203. At this time, the top die 201 does not move. The space occupied by the piston column 205 in the oil cylinder 203 decreases, and the pressure in the oil tank 301 decreases. The spring 304 pulls back the limiting rod 303 by its elastic force, releasing the limiting on both sides of the die. When the bottom limiting plate 206 contacts the oil cylinder 203, it starts to drive the top die 201 to rise, completing the mold opening process. Through the design of setting the bottom limiting plate 206 to lift the oil cylinder 203 for mold opening, the lifting of the top die 201 is delayed, so that the recovery of the limiting rod 303 and the rising of the top die 201 are separated, avoiding the situation that the limiting rod 303 cannot be retracted in time when the top die 201 rises, further improving the smoothness of the device during operation. At the same time, the overall mold closing, mold opening and side limiting are all controlled by the lifting of the hydraulic cylinder 208, and the device has stronger linkage.
[0028] Working principle: The hydraulic oil is stored in the oil cylinder 203, the oil pipe 204 and the oil tank 301. The hydraulic cylinder 208 is installed on the ceiling. The piston rod 205 is fixed to the bottom surface of the hydraulic cylinder 208 through the top limit plate 207. The bottom limit plate 206 is stuck on the top of the oil cylinder 203. The weights of the oil cylinder 203, the top mold 201 and the ejection device 3 are all supported by the bottom limit plate 206. When starting the processing, the hydraulic cylinder 208 extends, driving the piston rod 205 to descend. At the same time, under the influence of the self-weights of the oil cylinder 203, the top mold 201 and the ejection device 3, they descend synchronously. There is a relative static state between the piston rod 205 and the oil cylinder 203. The top mold 201 finally fits the bottom mold 101 under the guidance of the support rod 102 to complete the mold closing. At this time, the oil cylinder 203 no longer moves downward under the bottom support. As the hydraulic cylinder 208 continues to extend, the piston rod 205 is gradually pushed into the oil cylinder 203. The hydraulic oil in the oil cylinder 203 is forced to enter the oil tank 301 along the oil pipe 204. The pressure in the oil tank 301 increases, squeezing the limit rod 303 in the limit sleeve 302 and stretching the spring 304, so that the limit rod 303 horizontally moves into the first side holes 103 on both sides of the bottom mold 101 and the second side holes 202 on both sides of the top mold 201 respectively, connecting and limiting the bottom mold 101 and the top mold 201 to make it difficult to move up and down, realizing the mold limit. Through the design of setting the piston rod 205 to press the hydraulic oil to flow out and extrude the limit rod 303, the mold is automatically connected and limited after the mold closing, ensuring the stability of the mold casting, and at the same time improving the automation degree of the device. After the casting is completed, the hydraulic cylinder 208 pulls the piston rod 205 to reset. The piston rod 205 first slides along the top of the oil cylinder 203. At this time, the top mold 201 does not move. The space occupied by the piston rod 205 in the oil cylinder 203 decreases, and the pressure in the oil tank 301 decreases. The spring 304 pulls back the limit rod 303 by its elastic force, releasing the limit on both sides of the mold. When the bottom limit plate 206 contacts the oil cylinder 203, it starts to drive the top mold 201 to rise, completing the mold opening process. Through the design of setting the bottom limit plate 206 to lift the oil cylinder 203 for mold opening, the lifting of the top mold 201 is delayed, so that the recovery of the limit rod 303 and the rising of the top mold 201 are separated, avoiding that the limit rod 303 cannot be recovered in time when the top mold 201 rises, further improving the smoothness of the device during operation. At the same time, the overall mold closing, mold opening and side limiting are all controlled by the lifting of the hydraulic cylinder 208, and the device has stronger linkage.
[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A casting mold with high stability and a limiting device, comprising a base device (1), characterized in that: A lifting device (2) is arranged on the top of the base device (1), and two pop-up devices (3) are symmetrically arranged on both sides of the lifting device (2); The lifting device (2) comprises a top mold (201), a plurality of second side holes (202) are symmetrically arranged on both sides of the top mold (201), an oil cylinder (203) is fixedly arranged on the top of the top mold (201), two oil pipes (204) are symmetrically fixedly arranged on both sides of the oil cylinder (203), a piston column (205) is slidably arranged on the top of the oil cylinder (203), a bottom limit plate (206) is fixedly arranged at the bottom end of the piston column (205), a top limit plate (207) is fixedly arranged at the top end of the piston column (205), and a hydraulic cylinder (208) is installed on the top of the top limit plate (207); The ejection device (3) comprises an oil tank (301), a plurality of limit sleeves (302) are evenly and symmetrically fixedly arranged on the inner side of the oil tank (301) in the upper and lower parts, a limit rod (303) is slidably arranged in the middle of the limit sleeve (302), and a spring (304) is fixedly arranged at one end of the limit rod (303).
2. A casting mold with high stability and a limiting device according to claim 1, characterized in that: The base device (1) comprises a bottom mold (101), four support rods (102) are evenly and fixedly arranged at four corners of the bottom mold (101), and a plurality of first side holes (103) are symmetrically arranged on both sides of the bottom mold (101).
3. A casting mold with high stability and a limiting device according to claim 2, characterized in that: The top mold (201) is slidably connected to the support rod (102).
4. A casting mold with high stability and a limiting device according to claim 2, characterized in that: The limiting rod (303) is respectively connected to the bottom mold (101) and the top mold (201) by plugging and unplugging.
5. A casting mold with high stability and a limiting device according to claim 1, characterized in that: The oil tank (301) is connected to the top mold (201) by bolts.
6. A casting mold with high stability and a limiting device according to claim 1, characterized in that: The spring (304) is bolted to the oil tank (301), and the oil pipe (204) is flange-connected to the oil tank (301).