Core making machine with secondary compaction function
By designing a core making machine with secondary tightening function, the linkage components and material discharge components are used to automatically discharge excess sand and perform secondary extrusion, the core manufacturing failure and insufficient compactness caused by uneven sand weight are solved, and the casting effect and compactness are improved.
Patent Information
- Application Number
- CN202510632374.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2025-07-18
AI Technical Summary
Existing core making machines can easily lead to failure of core manufacturing when the sand weight is uneven, insufficient compactness, and hollowing is likely to occur in one-time extrusion molding, which affects the casting effect.
A core making machine with secondary tightening function is designed to automatically discharge excess sand through linkage components and discharge components, and perform secondary extrusion molding. Combined with the drive motor and gear system, the automatic adjustment of the mold and the discharge of excess sand are achieved.
The casting effect is improved, the core compactness and hollowness are avoided, and the core compactness and molding quality are ensured.
Smart Images
Figure CN120325904A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of sand core production, in particular to a core making machine with a secondary compaction function. Background Art
[0002] The core making machine is a general term for the core shooting machine and the shell core machine. It is a device that uses the hot core box process to make coated sand shell cores. Its working process is to complete sand filling and compaction at the same time, and it will immediately harden in the hot core box to form a core body.
[0003] In the prior art, when making cores from sand, sand is usually placed in a mold. Since the amount of sand placed each time is different, when the amount of sand is large, it is easy to cause core manufacturing failure, resulting in poor casting effect. At the same time, the existing cores are often formed by one extrusion, so that the cast cores appear hollow in the mold cavity, resulting in insufficient compactness. Therefore, a method is needed that can automatically discharge excess sand according to the size of the mold and can be formed by secondary extrusion to avoid the defects of poor casting effect and insufficient compactness. Summary of the invention
[0004] The object of the present invention is to provide a core-making machine with a secondary compacting function to solve the problems raised in the above background technology. To achieve the above object, the present invention provides the following technical solutions: a core-making machine with a secondary compacting function, comprising a workbench and a driving frame, the driving frame is arranged above the workbench, the bottoms of both sides of the driving frame are connected to the top of the workbench through brackets, one of the brackets is provided with a molding assembly, the molding assembly is provided with a receiving assembly on the side close to the workbench, the receiving assembly is provided with a matching assembly, a power assembly is provided above the matching assembly, an upper mold is provided on the power assembly, a compacting device is provided on the upper mold, an auxiliary assembly is provided at the side end of the compacting device, the compacting device comprises a linkage assembly and a discharge assembly, the linkage assembly is arranged on the power assembly, and the discharge assembly is provided in a plurality, and the plurality of discharge assemblies are evenly arranged below the linkage assembly.
[0005] Preferably, the mold making assembly includes a driving gear, the center of the driving gear is rotatably connected to the middle of one of the brackets, the driving gear is located on the side of the bracket close to the workbench, a driving motor is provided on the side of the bracket away from the workbench, the output end of the driving motor is connected to the center of the driving gear, driving rack bars are symmetrically arranged on both sides of the driving gear, the two driving rack bars are symmetrically arranged in opposite directions with the driving gear as the center, the rack ends of the two driving rack bars are respectively meshed with one side of the adjacent driving gear, the side of each driving rack bar away from the bracket is connected to the side end of the mold making frame, the two mold making frames are symmetrically arranged up and down, the sides of the two mold making frames close to the bracket are slidably arranged on the sliding track, and the side end of the sliding track is connected to the side wall of the bracket.
[0006] Preferably, the receiving assembly includes a fixed bushing, the fixed bushing is vertically arranged at the center of the workbench, the fixed bushing is rotationally matched with the workbench, a vertically arranged support rod is splined to the top of the fixed bushing, the top of the support rod is connected to the center of the bottom of the lower mold, a clamping member is sleeved on the outer side of the end of the support rod above the workbench, both sides of the clamping member are embedded in the first annular groove in the fixed sleeve through fixing blocks, the side end of the fixed sleeve is connected to the inner wall of the adjacent bracket through an auxiliary frame, and the side end of the fixing block is rotationally matched with the inner wall of the first annular groove.
[0007] Preferably, the matching assembly includes a second annular groove, the second annular groove is arranged above the first annular groove and is opened on the inner wall of the fixed sleeve, the first annular groove and the second annular groove are communicated through two symmetrically arranged communication grooves, the size of the communication groove matches the size of the fixing block, the side end of the fixing block is slidably matched with the communication groove, the side end of the fixing block is rotationally matched with the inner wall of the second annular groove, an arc-shaped sliding groove is opened on the side end of the support rod and is located above the workbench, the top of the arc-shaped sliding groove is communicated with the bottom of the vertical groove, the vertical groove is opened on the side end of the support rod, a sliding sleeve is slidably arranged in the fixed sleeve, the sliding sleeve is located outside the arc-shaped sliding groove, the sliding sleeve is sleeved on the outside of the support rod and is slidably matched with it, a horizontally arranged clamping rod is arranged on the inner wall of the sliding sleeve, the end of the clamping rod away from the sliding sleeve is embedded in the arc-shaped sliding groove, the clamping rod is slidably matched with both the arc-shaped sliding groove and the vertical groove, the bottom of the sliding sleeve is located outside the bottom of the fixed sleeve and is connected to the side end of the lower mold making frame below through a connecting frame, and the connecting frame is slidably matched with the fixed sleeve up and down.
[0008] Preferably, the power assembly includes a rifling rod which is vertically arranged. The top of the rifling rod is connected to the center of the bottom of the driving frame through a first sliding rod. The bottom of the rifling rod is connected to the top of a second sliding rod. The center of the rifling rod coincides with the center of the sliding sleeve. A rotating sleeve is movably sleeved outside the rifling rod. The inner diameter of the rotating sleeve forms a clearance fit with the outer diameter of the rifling rod. The bottom of the rotating sleeve is connected to the center of the upper die. A matching block is arranged above the upper die. The matching block is sleeved outside the rotating sleeve through a through groove. A plurality of connecting blocks are arranged on the inner wall of the through groove. The plurality of connecting blocks are evenly arranged on the inner wall of the through groove. One end of the connecting block away from the through groove is embedded in a third annular groove outside the rotating sleeve. The side end of the connecting block is slidably matched with the inner wall of the third annular groove. The side end of the matching block is connected to the side end of the mold-making frame above through a connecting plate.
[0009] Preferably, the linkage assembly includes an annular trigger frame which is arranged above the upper die and surrounds the outside of the rotating sleeve. The bottom of the annular trigger frame is movably connected to the top of the upper die through a plurality of spring telescopic rods. A horizontally arranged trigger block is arranged on the inner wall of one of the brackets and is located below the annular trigger frame. A plurality of L-shaped connecting rods are arranged at the bottom of the annular trigger frame. A vertically arranged control block is arranged at the side end of each L-shaped connecting rod. The bottom of the control block is connected to the top of the upper die. A vertical first moving groove is formed in the control block. A first moving block is slidably arranged in the first moving groove. The side end of the first moving block is connected to the side end of the adjacent L-shaped connecting rod.
[0010] Preferably, the material discharging assembly includes a second moving groove which is formed in the side end of the first moving groove and is located on the control block. A second moving block is slidably arranged in the second moving groove. A retractable trigger wedge block is arranged at the side end of the second moving block close to the first moving block. A spring rod is arranged at the side end of the trigger wedge block. The end of the spring rod is connected to the side end of the adjacent first moving block. A release wedge block is arranged between the first moving groove and the second moving groove. When the first moving block moves upward, the trigger wedge block can be driven to move upward synchronously through the spring rod, so that the trigger wedge block and the release wedge block are matched. The top of the second moving block is movably connected to the side end of the locking frame through a telescopic spring. The bottom of the locking frame is connected to the top of the control block. The side of the second moving block away from the control block is connected to the top of the shielding member through an L-shaped driving rod. Material discharging ports are arranged on one side of the upper die close to the shielding member. The size of the shielding member can completely cover the material discharging ports. The side end of the shielding member is slidably matched with the side end of the upper die up and down.
[0011] Preferably, the auxiliary component includes a flow channel. There are several flow channels, and the several flow channels are evenly arranged on the end face of the lower mold. When the upper mold and the lower mold coincide, the lower mold can be completely embedded in the upper mold. An extrusion column is provided at the center of the upper mold. A spring plate is inserted into each flow channel and seals the inside of the flow channel. The bottom of the spring plate is located outside the lower mold and is connected to the top of the auxiliary wedge block. A linkage wedge block is provided at the bottom of the upper mold. The linkage wedge block is directly above the auxiliary wedge block. When the upper mold is completely combined with the lower mold, the linkage wedge block abuts against the auxiliary wedge block to contract the spring plate. The bottom of the extrusion column and the top of the lower mold are on the same horizontal line.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, when the device is in use, after the sand is placed in the receiving component, by controlling the working of the mold-making component, the receiving component and the upper mold rotate in opposite directions. During the rotation, several discharging components are driven to open by the arranged linkage component, and the excess sand is discharged. After the discharge, secondary extrusion is carried out to complete the core-making work. In this process, when the amount of sand is large, the failure of core manufacturing is avoided, thereby improving the casting effect. At the same time, through secondary extrusion molding, the phenomenon of air pockets in the cast core in the mold cavity is avoided, thereby improving the compactness. Thus, it is realized that the excess sand can be automatically discharged according to the size of the mold and secondary extrusion molding can be carried out to avoid the low casting effect and insufficient compactness.
[0013] In the present invention, through the driving motor provided, the driving gear is driven to rotate, and then the two mold-making frames are driven to approach. At this time, the lower mold-making frame drives the sliding sleeve to move upward synchronously along the fixed sleeve through the connecting frame. At this time, through the cooperation of the clamping rod and the arc-shaped chute, the support rod and the lower mold are driven to move upward, so that the clamping part and the fixed block move from the first annular groove to the second annular groove under the action of the communication groove until the lower mold is opposite to the upper mold. When the top of the fixed block abuts against the top in the second annular groove, the clamping rod moves along the arc-shaped chute, and then the lower mold is driven to rotate. After the rotation is completed, at this time, the clamping rod enters the vertical groove through the arc-shaped chute, so as to drive the sliding sleeve to move upward in the fixed sleeve, so that the lower mold stops moving upward, which is convenient for secondary extrusion work and thus convenient for mold-making work, thereby improving the convenience during the use of the device.
[0014] In the present invention, through the cooperation of the cooperation component and the compacting device, the upper mold rotates and moves downward in the opposite direction to the lower mold. During the rotation, the excess waste is extruded from the discharge port. After the extrusion, the shielding part is driven to cover the discharge port again, and the extrusion molding continues, thereby avoiding the failure of core manufacturing when the amount of sand is large, and thus improving the casting effect.
[0015] In the present invention, after extruding the excess sand, secondary extrusion is carried out through the extrusion column, and during the extrusion process, the excess waste is discharged from the flow channel. Since the lower mold stops rotating and moving at this time, the downward pressure of the upper mold acts completely on the core, thereby further improving the compactness of the core and avoiding the phenomenon of air pockets in the core cast in the mold cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 ; Figure 2 is a schematic three-dimensional structure of the present invention Figure 2 ; Figure 3 is a schematic partial three-dimensional structure diagram of the mold-making assembly in the present invention; Figure 4 is a schematic partial three-dimensional structure of the receiving assembly and the mating assembly in the present invention Figure 1 ; Figure 5 is a schematic partial three-dimensional structure of the present invention Figure 1 ; Figure 6 is a partial cross-sectional view of the receiving assembly and the mating assembly in the present invention; Figure 7 is a schematic exploded three-dimensional structure diagram of the receiving assembly and the mating assembly in the present invention; Figure 8 is a schematic partial three-dimensional structure of the receiving assembly and the mating assembly in the present invention Figure 2 ; Figure 9 is a schematic partial three-dimensional structure of the present invention Figure 2 ; Figure 10 is a schematic exploded three-dimensional structure diagram of the power assembly in the present invention; Figure 11 is a cross-sectional view of the mating block in the present invention; Figure 12 is a schematic partial three-dimensional structure diagram of the compacting device in the present invention; Figure 13 is Figure 12 an enlarged view of area A in Figure 14 is a partial front elevation view of the present invention; Figure 15 is a partial cross-sectional elevation view of the present invention; Figure 16 is a schematic exploded three-dimensional structure diagram of the auxiliary assembly in the present invention.
[0017] In the figure: 1, workbench; 2, drive frame; 3, bracket; 4, mold assembly; 41, drive gear; 42, drive motor; 43, drive toothed rod; 44, mold frame; 45, sliding track; 5, receiving assembly; 51, fixed sleeve; 52, support rod; 53, lower mold; 54, clamping piece; 55, fixed block; 56, fixed sleeve; 57, first annular groove; 58, auxiliary frame; 6, matching assembly; 61, second annular groove; 62, connecting groove; 63, arc slide groove; 64, vertical groove; 65, sliding sleeve; 66, clamping rod; 67, connecting frame; 7, power assembly; 71, rifle rod; 72, first sliding rod; 73, second sliding rod; 74, rotating sleeve; 75, matching block; 76, through groove; 77, connecting block; 7 8. The third annular groove; 79. The connecting plate; 8. The upper mold; 9. The compacting device; 91. The linkage assembly; 911. The annular trigger frame; 912. The spring telescopic rod; 913. The trigger block; 914. The L-shaped connecting rod; 915. The control block; 916. The first movable groove; 917. The first movable block; 92. The discharge assembly; 921. The second movable groove; 922. The second movable block; 923. The trigger wedge block; 924. The spring rod; 925. The release wedge block; 926. The telescopic spring; 927. The locking frame; 928. The L-shaped driving rod; 929. The shielding member; 930. The discharge port; 10. The auxiliary assembly; 101. The flow channel; 102. The extrusion column; 103. The spring plate; 104. The auxiliary wedge block; 105. The linkage wedge block. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 technical personnel in this field without creative work are within the scope of protection of the present invention.
[0019] See also Figures 1 to 16The present invention provides a technical solution: a core making machine with a secondary compacting function, comprising a workbench 1 and a driving frame 2, wherein the driving frame 2 is arranged above the workbench 1, and the bottoms of both sides of the driving frame 2 are connected to the top of the workbench 1 through brackets 3, and a molding component 4 is provided on one of the brackets 3, and a receiving component 5 is provided on the side of the molding component 4 close to the workbench 1, and a matching component 6 is provided on the receiving component 5, and a power component 7 is provided above the matching component 6, and an upper mold 8 is provided on the power component 7, and a compacting device 9 is provided on the upper mold 8, and an auxiliary component 10 is provided at the side end of the compacting device 9, and the compacting device 9 includes a linkage component 91 and a discharge component 92, and the linkage component 91 is arranged on the power component 7, and a plurality of the discharge components 92 are provided, and a plurality of the discharge components 92 are evenly arranged below the linkage component 91.
[0020] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the molding assembly 4 includes a driving gear 41, the center of the driving gear 41 is rotatably connected to the middle of one of the brackets 3, the driving gear 41 is located on the side of the bracket 3 close to the workbench 1, and the side of the bracket 3 away from the workbench 1 is provided with a driving motor 42, the output end of the driving motor 42 is connected to the center of the driving gear 41, and driving toothed rods 43 are symmetrically arranged on both sides of the driving gear 41, and the two driving toothed rods 43 are symmetrically arranged oppositely with the driving gear 41 as the center, and the toothed ends of the two driving toothed rods 43 are respectively meshed with one side of the adjacent driving gear 41, and each side of the driving toothed rod 43 away from the bracket 3 is connected to the side end of the molding frame 44, and the two molding frames 44 are symmetrically arranged up and down, and the two molding frames 44 are slidably arranged on the sliding track 45 on the side close to the bracket 3, and the side end of the sliding track 45 is connected to the side wall of the bracket 3; The receiving assembly 5 includes a fixed sleeve 51, which is vertically arranged at the center of the workbench 1, and the fixed sleeve 51 is rotatably matched with the workbench 1. The top of the fixed sleeve 51 is splined with a vertically arranged support rod 52, and the top of the support rod 52 is connected to the center of the bottom of the lower mold 53. A clamping piece 54 is sleeved on the outer side of one end of the support rod 52 located above the workbench 1. Both sides of the clamping piece 54 are embedded in the first annular groove 57 in the fixed sleeve 56 through a fixed block 55. The side end of the fixed sleeve 56 is connected to the inner wall of the adjacent bracket 3 through an auxiliary frame 58, and the side end of the fixed block 55 is rotatably matched with the inner wall of the first annular groove 57; The mating component 6 includes a second annular groove 61 which is arranged above the first annular groove 57 and is formed in the inner wall of the fixed sleeve 56. The first annular groove 57 and the second annular groove 61 are communicated through two symmetrically arranged communication grooves 62. The size of the communication groove 62 matches the size of the fixed block 55. The side end of the fixed block 55 is slidably matched with the communication groove 62, and the side end of the fixed block 55 is rotatably matched with the inner wall of the second annular groove 61. An arc-shaped chute 63 is formed in the side end of the support rod 52 and is located above the workbench 1. The top of the arc-shaped chute 63 is communicated with the bottom of the vertical chute 64 which is formed in the side end of the support rod 52. A sliding sleeve 65 is slidably arranged in the fixed sleeve 56. The sliding sleeve 65 is located outside the arc-shaped chute 63. The sliding sleeve 65 is sleeved outside the support rod 52 and is slidably matched with it. A horizontally arranged clamping rod 66 is arranged on the inner wall of the sliding sleeve 65. One end of the clamping rod 66 away from the sliding sleeve 65 is embedded in the arc-shaped chute 63. The clamping rod 66 is slidably matched with both the arc-shaped chute 63 and the vertical chute 64. The bottom of the sliding sleeve 65 is located outside the bottom of the fixed sleeve 56 and is connected with the side end of the mold-making frame 44 below through a connecting frame 67. The connecting frame 67 is slidably matched with the fixed sleeve 56 up and down.
[0021] In this embodiment, as Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 shown, the power component 7 includes a rifled rod 71 which is vertically arranged. The top of the rifled rod 71 is connected with the center of the bottom of the driving frame 2 through a first sliding rod 72. The bottom of the rifled rod 71 is connected with the top of a second sliding rod 73. The center of the rifled rod 71 coincides with the center of the sliding sleeve 65. A rotating sleeve 74 is movably sleeved outside the rifled rod 71. The inner diameter of the rotating sleeve 74 forms a clearance fit with the outer diameter of the rifled rod 71. The bottom of the rotating sleeve 74 is connected with the center of the upper mold 8. A fitting block 75 is arranged above the upper mold 8. The fitting block 75 is sleeved outside the rotating sleeve 74 through a through groove 76. A plurality of connecting blocks 77 are arranged on the inner wall of the through groove 76. The plurality of connecting blocks 77 are evenly arranged on the inner wall of the through groove 76. One end of the connecting block 77 away from the through groove 76 is embedded in a third annular groove 78 outside the rotating sleeve 74. The side end of the connecting block 77 is slidably matched with the inner wall of the third annular groove 78. The side end of the fitting block 75 is connected with the side end of the mold-making frame 44 above through a connecting plate 79; The linkage component 91 includes an annular trigger frame 911 which is arranged above the upper die 8 and surrounds the outer side of the rotating sleeve 74. The bottom of the annular trigger frame 911 is movably connected to the top of the upper die 8 through a plurality of spring telescopic rods 912. A horizontally arranged trigger block 913 is provided on the inner wall of one of the brackets 3 and is located below the annular trigger frame 911. A plurality of L-shaped connecting rods 914 are provided at the bottom of the annular trigger frame 911. A vertically arranged control block 915 is provided at the side end of each L-shaped connecting rod 914. The bottom of the control block 915 is connected to the top of the upper die 8. A vertical first moving groove 916 is formed in the control block 915. A first moving block 917 is slidably arranged in the first moving groove 916. The side end of the first moving block 917 is connected to the side end of the adjacent L-shaped connecting rod 914; The discharging component 92 includes a second moving groove 921 which is formed in the side end of the first moving groove 916 and is located on the control block 915. A second moving block 922 is slidably arranged in the second moving groove 921. A telescopic trigger wedge block 923 is provided at the side end of the second moving block 922 close to the first moving block 917. A spring rod 924 is provided at the side end of the trigger wedge block 923. The end of the spring rod 924 is connected to the side end of the adjacent first moving block 917. A release wedge block 925 is arranged between the first moving groove 916 and the second moving groove 921. When the first moving block 917 moves upward, the trigger wedge block 923 can be driven to move upward synchronously through the spring rod 924, so that the trigger wedge block 923 and the release wedge block 925 cooperate with each other. The top of the second moving block 922 is movably connected to the side end of the locking frame 927 through a telescopic spring 926. The bottom of the locking frame 927 is connected to the top of the control block 915. The side of the second moving block 922 away from the control block 915 is connected to the top of the shielding member 929 through an L-shaped driving rod 928. Discharging ports 930 are provided on one side of the upper die 8 close to the shielding member 929. The size of the shielding member 929 can completely cover the discharging ports 930. The side end of the shielding member 929 is in vertical sliding fit with the side end of the upper die 8.
[0022] In this embodiment, as Figure 5 、 Figure 15 and Figure 16As shown, the auxiliary component 10 includes a flow channel 101. A plurality of the flow channels 101 are provided, and the plurality of flow channels 101 are uniformly arranged on the end face of the lower mold 53. When the upper mold 8 and the lower mold 53 coincide, the lower mold 53 can be completely embedded in the upper mold 8. An extrusion column 102 is provided at the center of the upper mold 8. A spring plate 103 is inserted into each flow channel 101 and seals the inside of the flow channel 101. The bottom of the spring plate 103 is located outside the lower mold 53 and is connected to the top of the auxiliary wedge block 104. A linkage wedge block 105 is provided at the bottom of the upper mold 8. The linkage wedge block 105 is located directly above the auxiliary wedge block 104. When the upper mold 8 is completely combined with the lower mold 53, the linkage wedge block 105 abuts against the auxiliary wedge block 104 to contract the spring plate 103. The bottom of the extrusion column 102 and the top of the lower mold 53 are on the same horizontal line.
[0023] The usage method and advantages of the present invention: The core-making machine with a secondary compaction function works as follows: As Figures 1 to 16 shown, by setting the driving motor 42, the driving gear 41 is driven to rotate, and then the two driving rack bars 43 are driven to approach each other along the direction of the sliding track 45, and then the two mold-making frames 44 are driven to approach. At this time, the lower mold-making frame 44 drives the sliding sleeve 65 to move upward synchronously in the fixed sleeve 56 through the connecting frame 67. At this time, through the cooperation of the clamping rod 66 and the arc-shaped chute 63, the support rod 52 and the lower mold 53 are driven to move upward, so that the clamping member 54 and the fixed block 55 move from the first annular groove 57 to the second annular groove 61 under the action of the communication groove 62 until the lower mold 53 is aligned with the upper mold 8. By the top of the fixed block 55 abutting against the top in the second annular groove 61, the clamping rod 66 moves along the arc-shaped chute 63, and then the lower mold 53 is driven to rotate. After the rotation is completed, at this time, the clamping rod 66 enters the vertical groove 64 through the arc-shaped chute 63, so as to drive the sliding sleeve 65 to move upward in the fixed sleeve 56, so that the lower mold 53 stops moving upward, which is convenient for the secondary extrusion work, and thus convenient for the mold-making work, thereby improving the convenience of the use of the device; When the lower die 53 moves upward, at this time, the connecting plate 79 drives the matching block 75 to move downward synchronously. At the initial downward movement, the matching block 75 drives the rotating sleeve 74 to move downward along the first sliding rod 72 through the cooperation of the connecting block 77 and the third annular groove 78. When the upper die 8 and the lower die 53 are combined and the lower die 53 rotates, at this time, the rotating sleeve 74 moves downward to the rifling rod 71, thereby driving the rotating sleeve 74 and the upper die 8 to rotate and move downward in the opposite direction to the lower die 53 synchronously. During the rotation, the annular trigger frame 911 moves upward under the action of the trigger block 913 under the action of the spring telescopic rod 912, and drives the first moving block 917 to move upward synchronously along the first moving groove 916 under the action of the L-shaped connecting rod 914. Under the action of the spring rod 924, the trigger wedge block 923 and the second moving block 922 move upward synchronously along the second moving groove 921, thereby driving the shielding member 929 to move upward through the L-shaped driving rod 928, exposing the discharge port 930, and under the action of mutual rotation, extruding the excess waste from the discharge port 930. At the same time, the telescopic spring 926 contracts synchronously. When the trigger wedge block 923 moves to the release wedge block 925, the trigger wedge block 923 contracts, and then under the action of the telescopic spring 926, drives the shielding member 929 to cover the discharge port 930 again and continue the extrusion molding, thus avoiding the failure of core manufacturing when there is too much sand, thereby improving the casting effect; After extruding the excess sand, at this time, the rotating sleeve 74 moves to the second sliding rod 73 through the rifling rod 71, thereby performing secondary extrusion through the extrusion column 102. During the extrusion process, there is excess waste between the inner walls of the upper die 8 and the lower die 53. At this time, during the further downward movement of the upper die 8, through the cooperation of the set linkage wedge block 105 and the auxiliary wedge block 104, the spring plate 103 is driven to contract, opening the flow channel 101, and then discharging the excess waste from the flow channel 101. Since the lower die 53 stops rotating and moving at this time, the downward pressure of the upper die 8 acts completely on the core, further improving the compactness of the core, thereby avoiding the phenomenon of air pockets in the mold cavity of the cast core. After the core manufacturing is completed, by controlling the driving motor 42 to rotate in the reverse direction, the upper die 8 and the lower die 53 are driven to move away from each other, causing the linkage wedge block 105 and the auxiliary wedge block 104 to move away from each other, and then under the action of the spring plate 103, the flow channel 101 is re-sealed. During the process of the lower die 53 moving away, through the bottom of the fixed block 55 and the bottom inside the first annular groove 57, it is reset. During the process of the upper die 8 moving away, the trigger wedge block 923 is driven to reset through the set spring rod 924, facilitating the next operation and improving the practicality of the device.
[0024] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A core making machine with a secondary compaction function, comprising a workbench (1) and a drive frame (2), wherein the drive frame (2) is arranged above the workbench (1), and the bottoms of both sides of the drive frame (2) are connected to the top of the workbench (1) through brackets (3); It is characterized in that: A molding component (4) is provided on one of the brackets (3); a receiving component (5) is provided on a side of the molding component (4) close to the workbench (1); a matching component (6) is provided on the receiving component (5); a power component (7) is provided above the matching component (6); an upper mold (8) is provided on the power component (7); a compacting device (9) is provided on the upper mold (8); an auxiliary component (10) is provided at a side end of the compacting device (9); the compacting device (9) comprises a linkage component (91) and a discharge component (92); the linkage component (91) is provided on the power component (7); a plurality of discharge components (92) are provided; and the plurality of discharge components (92) are evenly arranged below the linkage component (91).
2. The core making machine with a secondary compaction function according to claim 1, characterized in that: The molding assembly (4) comprises a driving gear (41), the center of the driving gear (41) is rotatably connected to the middle of one of the brackets (3), the driving gear (41) is located on a side of the bracket (3) close to the workbench (1), and a driving motor (42) is provided on a side of the bracket (3) away from the workbench (1), the output end of the driving motor (42) is connected to the center of the driving gear (41), and driving toothed rods (43) are symmetrically provided on both sides of the driving gear (41), and the two driving toothed rods (43) are symmetrically provided on both sides of the driving gear (41). 3) The two drive toothed rods (43) are symmetrically arranged opposite to each other with the driving gear (41) as the center, the toothed ends of the two drive toothed rods (43) are respectively meshed with one side of the adjacent driving gear (41), the side of each drive toothed rod (43) away from the bracket (3) is connected to the side end of the mold frame (44), the two mold frames (44) are symmetrically arranged in the upper and lower parts, the sides of the two mold frames (44) close to the bracket (3) are slidably arranged on the sliding track (45), and the side end of the sliding track (45) is connected to the side wall of the bracket (3).
3. The core making machine with a secondary compaction function according to claim 2, characterized in that: The receiving assembly (5) comprises a fixed sleeve (51), the fixed sleeve (51) being vertically arranged at the center of the workbench (1), the fixed sleeve (51) being rotatably matched with the workbench (1), the top of the fixed sleeve (51) being spline-connected with a vertically arranged support rod (52), the top of the support rod (52) being connected to the center of the bottom of the lower mold (53), a clamping piece (54) being sleeved on the outer side of one end of the support rod (52) located above the workbench (1), the two sides of the clamping piece (54) being embedded in a first annular groove (57) in a fixed sleeve (56) through a fixed block (55), the side end of the fixed sleeve (56) being connected to the inner wall of the adjacent bracket (3) through an auxiliary frame (58), and the side end of the fixed block (55) being rotatably matched with the inner wall of the first annular groove (57).
4. The core making machine with a secondary compaction function according to claim 3, wherein: The mating component (6) includes a second annular groove (61) which is arranged above the first annular groove (57) and is formed on the inner wall of the fixed sleeve (56). The first annular groove (57) and the second annular groove (61) are communicated through two symmetrically arranged communication grooves (62). The size of the communication groove (62) matches the size of the fixed block (55). The side end of the fixed block (55) is slidably matched with the communication groove (62), and the side end of the fixed block (55) is rotatably matched with the inner wall of the second annular groove (61). An arc-shaped sliding groove (63) is formed on the side end of the support rod (52) and is located above the workbench (1). The top of the arc-shaped sliding groove (63) is communicated with the bottom of the vertical groove (64). The vertical groove (64) is formed on the side end of the support rod (52). A sliding sleeve (65) is slidably arranged in the fixed sleeve (56). The sliding sleeve (65) is located outside the arc-shaped sliding groove (63). The sliding sleeve (65) is sleeved outside the support rod (52) and is slidably matched with it. A horizontally arranged clamping rod (66) is arranged on the inner wall of the sliding sleeve (65). One end of the clamping rod (66) away from the sliding sleeve (65) is embedded in the arc-shaped sliding groove (63). The clamping rod (66) is slidably matched with both the arc-shaped sliding groove (63) and the vertical groove (64). The bottom of the sliding sleeve (65) is located outside the bottom of the fixed sleeve (56) and is connected with the side end of the mold-making frame (44) below through a connecting frame (67). The connecting frame (67) is slidably matched with the fixed sleeve (56) up and down.
5. A core-making machine with a secondary compaction function according to claim 4, characterized in that: The power component (7) includes a rifled rod (71) which is arranged vertically. The top of the rifled rod (71) is connected with the center of the bottom of the driving frame (2) through a first sliding rod (72). The bottom of the rifled rod (71) is connected with the top of a second sliding rod (73). The center of the rifled rod (71) coincides with the center of the sliding sleeve (65). A rotating sleeve (74) is movably sleeved outside the rifled rod (71). The inner diameter of the rotating sleeve (74) forms a clearance fit with the outer diameter of the rifled rod (71). The bottom of the rotating sleeve (74) is connected with the center of the upper mold (8). A mating block (75) is arranged above the upper mold (8). The mating block (75) is sleeved outside the rotating sleeve (74) through a through groove (76). A plurality of connecting blocks (77) are arranged on the inner wall of the through groove (76). The plurality of connecting blocks (77) are evenly arranged on the inner wall of the through groove (76). One end of the connecting block (77) away from the through groove (76) is embedded in a third annular groove (78) outside the rotating sleeve (74). The side end of the connecting block (77) is slidably matched with the inner wall of the third annular groove (78). The side end of the mating block (75) is connected with the side end of the mold-making frame (44) above through a connecting plate (79).
6. The core making machine with a secondary compaction function according to claim 5, characterized in that: The linkage assembly (91) includes an annular trigger frame (911). The annular trigger frame (911) is arranged above the upper die (8) and surrounds the outer side of the rotating sleeve (74). The bottom of the annular trigger frame (911) is movably connected to the top of the upper die (8) through a plurality of spring telescopic rods (912). A horizontally arranged trigger block (913) is provided on the inner wall of one of the brackets (3) and is located below the annular trigger frame (911). A plurality of L-shaped connecting rods (914) are provided at the bottom of the annular trigger frame (911). A vertically arranged control block (915) is provided at the side end of each L-shaped connecting rod (914). The bottom of the control block (915) is connected to the top of the upper die (8). A vertical first moving groove (916) is formed in the control block (915). A first moving block (917) is slidably arranged in the first moving groove (916). The side end of the first moving block (917) is connected to the side end of the adjacent L-shaped connecting rod (914).
7. A core-making machine with a secondary compaction function according to claim 6, characterized in that: The discharging assembly (92) includes a second moving groove (921). The second moving groove (921) is formed at the side end of the first moving groove (916) and is located on the control block (915). A second moving block (922) is slidably arranged in the second moving groove (921). A telescopic trigger wedge block (923) is provided at the side end of the second moving block (922) close to the first moving block (917). A spring rod (924) is provided at the side end of the trigger wedge block (923). The end of the spring rod (924) is connected to the side end of the adjacent first moving block (917). A release wedge block (925) is arranged between the first moving groove (916) and the second moving groove (921). When the first moving block (917) moves upward, the trigger wedge block (923) can be driven to move upward synchronously through the spring rod (924), so that the trigger wedge block (923) and the release wedge block (925) cooperate with each other. The top of the second moving block (922) is movably connected to the side end of the locking frame (927) through a telescopic spring (926). The bottom of the locking frame (927) is connected to the top of the control block (915). The side of the second moving block (922) away from the control block (915) is connected to the top of the shielding member (929) through an L-shaped driving rod (928). Discharging ports (930) are provided on one side of the upper die (8) close to the shielding member (929). The size of the shielding member (929) can completely cover the discharging ports (930). The side end of the shielding member (929) is in vertical sliding fit with the side end of the upper die (8).
8. A core-making machine with a secondary compaction function according to claim 3, characterized in that: The auxiliary component (10) includes a flow channel (101), and a plurality of the flow channels (101) are provided. The plurality of flow channels (101) are uniformly arranged on the end face of the lower mold (53). When the upper mold (8) and the lower mold (53) coincide, the lower mold (53) can be completely embedded in the upper mold (8). An extrusion column (102) is provided at the center of the upper mold (8). A spring plate (103) is inserted into each flow channel (101) to block the inside of the flow channel (101). The bottom of the spring plate (103) is located outside the lower mold (53) and is connected to the top of the auxiliary wedge block (104). A linkage wedge block (105) is provided at the bottom of the upper mold (8), and the linkage wedge block (105) is located directly above the auxiliary wedge block (104). When the upper mold (8) is completely combined with the lower mold (53), the linkage wedge block (105) abuts against the auxiliary wedge block (104) to contract the spring plate (103). The bottom of the extrusion column (102) and the top of the lower mold (53) are on the same horizontal line.