Pulley casting casting system and casting method thereof

Abstract

The present invention relates to the technical field of pulley castings, and discloses a pulley casting system and a casting method thereof, comprising an installation unit, a rotation unit, a transmission unit, and a locking unit. The installation unit comprises a base surface, and four mutually symmetrical support legs are fixedly installed above the base surface, and electric push rods are provided on the side walls of the four support legs that are opposite to each other; the rotation unit comprises two first cams and a second cam and a casting workpiece. According to the present invention, when the locking unit is unlocked by the driving component, the first wedge block can be located at the bottom of the second wedge block, thereby ensuring that the lower placement plate will not fall off, and the first cam and the second cam can be rotated by continuing to move the driving component, thereby driving the casting workpiece to rotate. When the casting workpiece rotates, it can ensure that the melted wax can be discharged from the pulley casting wax mold, thereby making the pulley casting cast in the pulley casting wax mold more accurate during subsequent casting.

Description

Technical Field

[0001] The invention belongs to the technical field of pulley castings, and in particular relates to a pulley casting casting system and a casting method thereof. Background Art

[0002] In the field of mechanical manufacturing, pulleys are important transmission components and are widely used in various industries, including lifting equipment, conveying devices, elevator systems, etc. The quality of pulley castings directly affects the operational stability, reliability and service life of the equipment.

[0003] In the production and manufacturing process of pulley castings, film casting technology has gradually become a casting process that has attracted much attention in the industry due to its advantages in effectively controlling the flow state of molten metal and improving the molding quality of castings.

[0004] However, in the existing film casting, the film itself is often in an irregular state. Therefore, during the process of melting the wax in the film, part of the film will remain in the concave area of ​​the film shell, which makes it difficult to be discharged, resulting in residual wax liquid in the film, which makes it easy to cause inaccurate castings when subsequently casting into the film shell.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A pulley casting casting system includes an installation unit, a rotating unit, a transmission unit and a locking unit, the installation unit includes a base surface, four supporting legs symmetrical to each other are fixedly installed above the base surface, and electric push rods are provided on the side walls of the four supporting legs opposite to each other; the rotating unit includes two first cams and a second cam and a casting workpiece, the two first cams are symmetrical to each other, and a plurality of pulley casting wax molds arranged in a linear distribution are provided on the opposite sides of the casting workpiece; the locking unit includes a plurality of plug-in blocks arranged in a circumferential distribution, and a swing arm is provided at the bottom of each plug-in block, and each swing arm is symmetrical to each other, and the opposite end is provided on the positioning block; the transmission unit includes a driving assembly, which is used to drive the first cam and the second cam to rotate respectively, and the rotation of the first cam and the second cam is used to drive the casting workpiece to rotate, and the driving assembly is also used to drive the locking unit to unlock.

[0008] As a preferred embodiment of the present invention, two workbenches are provided at the bottom of the base surface, mounting support seats are provided at the bottom of the two workbenches, and circular notches are provided on the base surface and the workbenches.

[0009] As a preferred embodiment of the present invention, two symmetrical grooves are provided on the side walls opposite to each other of the four supporting legs, and a sliding rod is slidingly provided in the inner cavity of the groove, a fixed plate is provided between each of the sliding rods, and a first wedge block and a second wedge block are provided on the side walls opposite to each other of each fixing plate, each of the first wedge block and the second wedge block are symmetrical to each other, and a sliding rod is provided on the side walls opposite to each other of each of the first wedge block and the second wedge block.

[0010] As a preferred embodiment of the present invention, two positioning rods are provided on the opposite side walls of each fixed plate, a mounting plate is provided between the other ends of each positioning rod, an L-shaped fixing plate is provided above each mounting plate, the other ends of each L-shaped fixing plate are respectively provided on the supporting legs, each positioning rod is provided with a return spring, and the two ends of the return spring are respectively provided on the side walls opposite to the mounting plate and the fixed plate, and each positioning rod is respectively inserted into the sliding rod.

[0011] As a preferred embodiment of the present invention, the two side walls of the two casting workpieces are respectively provided with a first positioning plate and a second positioning plate, the two first positioning plates and the second positioning plates are symmetrical to each other, and the two first positioning plates and the second positioning plates are respectively provided with a rotating rod on the opposite side walls, and each of the rotating rods is respectively provided with a first cam and a second cam at one end away from the first positioning plate and the second positioning plate, and the first cam and the second cam are respectively symmetrical to each other.

[0012] As a preferred embodiment of the present invention, four hydraulic cylinders are further arranged above the base surface, and the four hydraulic cylinders are symmetrical with each other in pairs, and sliding plates are respectively arranged above the four hydraulic cylinders in pairs, and mounting brackets are fixedly connected on all sides above the two sliding plates, and a top plate is arranged between the four mounting brackets, and a connecting rod is arranged on the mounting bracket, and the four connecting rods are staggered and symmetrical with each other in pairs, and a connecting rod is respectively provided on the side of the four connecting rods away from the mounting bracket in pairs.

[0013] As a preferred embodiment of the present invention, a fixed slot is provided in the middle of the two sliding plates, and four rectangular slots distributed in a circumferential manner are provided in the inner cavity of the fixed slot, and a lower placement plate is movably passed through the rectangular slot, a cavity is provided in the two lower placement plates, and placement slots are provided on the side walls, a semi-ring plate is provided above the two lower placement plates, and a driving slot is provided on the semi-ring plate at the lower placement plate, and an upper inclined plate is slidably provided above the two semi-ring plates, the two upper inclined plates are symmetrical to each other, and the two upper inclined plates respectively fit together with the inner cavity of the casting workpiece.

[0014] As a preferred embodiment of the present invention, a moving rod is provided above the two positioning blocks, and a driving block is fixedly connected below the two moving rods. The two driving blocks are respectively movable through the driving slots opened at the lower placement plate and the semi-ring plate, and a driving rod is provided above the driving block. The two driving rods are movable through the upper inclined plate, and two mutually symmetrical telescopic rods are provided at the bottom of the two semi-ring plates, and the bottom of each telescopic rod is provided on the base surface.

[0015] As a preferred embodiment of the present invention, each of the plug-in blocks fits into the placement slot and the rectangular slot respectively, and two mutually symmetrical sliding grooves are opened at the bottom of each of the plug-in blocks. A sliding rod is slidingly arranged in the inner cavity of each of the sliding grooves, and the other end of the sliding rod is respectively arranged at the bottom of the inner cavity of the lower placement plate.

[0016] A method for casting a pulley casting comprises the following steps:

[0017] Step 1: First, during casting, the wax set in the wax mold of the pulley casting is heated by a heating component so that the wax can be melted;

[0018] Step 2: The staff controls the hydraulic cylinder to operate, so that the hydraulic cylinder can push the sliding plate to move vertically upward, thereby driving the lower placement plate to move vertically upward through the locking unit;

[0019] Step 3: When the hydraulic cylinder pushes the sliding plate to drive the lower placement plate to move to a certain position, the first wedge block and the second wedge block can fit on the bottom of the lower placement plate, and the locking unit can be unlocked;

[0020] Step 4: When the hydraulic cylinder continues to push the sliding plate to move, it can drive the first cam to rotate through the provided connecting rod, thereby driving the casting workpiece to rotate, thereby enabling the casting workpiece to rotate, so that the melted wax can be discharged from the pulley casting wax mold;

[0021] Step 5: When the hydraulic cylinder continues to push the sliding plate to move, the connecting rod can be disengaged from the first cam, thereby resetting the casting workpiece. After a certain period of time, the casting workpiece is in the reset state, and the connecting rod set on the other side can push the second cam to rotate, allowing the casting workpiece to rotate, thereby ensuring that the melted wax in the pulley casting wax mold can be discharged;

[0022] Step 6: After the wax is discharged, the staff will reverse the direction of the casting workpiece to ensure the accuracy of the casting.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] According to the present invention, when the locking unit is unlocked by the driving component, the first wedge block can be located at the bottom of the second wedge block, thereby ensuring that the lower placement plate will not fall off, and the first cam and the second cam can be rotated by continuing to move the driving component, thereby driving the casting workpiece to rotate. When the casting workpiece rotates, it can be ensured that the melted wax can be discharged from the pulley casting wax mold, so that the pulley casting cast in the pulley casting wax mold during subsequent casting is more precise.

[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the attached figure:

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a pulley casting system and a casting method thereof;

[0028] Figure 2 It is a partial structural schematic diagram of a pulley casting system and a casting method thereof;

[0029] Figure 3 A pulley casting system and a casting method thereof Figure 2 A in the middle is an enlarged structural diagram;

[0030] Figure 4 A pulley casting system and a casting method thereof Figure 2 The enlarged structural diagram at B in the middle;

[0031] Figure 5 A schematic diagram of a pulley casting system and a casting method thereof, including a casting workpiece and a locking unit structure;

[0032] Figure 6 The figure is a cross-sectional structural diagram of a lower placement plate of a pulley casting system and a casting method thereof;

[0033] Figure 7 It is a schematic cross-sectional structure diagram of a lower placement plate and an upper inclined plate of a pulley casting system and a casting method thereof;

[0034] Figure 8 A schematic cross-sectional view of a sliding plate of a pulley casting system and a casting method thereof;

[0035] Figure 9 The present invention is a schematic diagram of the plug-in block structure of a pulley casting system and a casting method thereof.

[0036] In the picture:

[0037] 100, mounting unit; 101, mounting support base; 1011, workbench; 1012, base surface; 1013, circular notch; 102, support leg; 1021, electric push rod; 103, semi-ring plate; 1031, telescopic rod;

[0038] 200, rotating unit; 201, casting workpiece; 2011, pulley casting wax mold; 202, first positioning plate; 2021, rotating rod; 2022, first cam; 2023, second cam; 2024, second positioning plate;

[0039] 300, transmission unit; 301, sliding rod; 3011, mounting plate; 3012, fixing plate; 3013, return spring; 3014, L-shaped fixing plate; 3015, positioning rod; 302, first wedge block; 3021, second wedge block;

[0040] 400, locking unit; 401, hydraulic cylinder; 4011, sliding plate; 4012, lower placement plate; 4013, rectangular notch; 4014, placement notch; 4015, mounting bracket; 4016, top plate; 4017, connecting rod; 4018, connecting rod; 4019, upper tilting plate; 402, moving rod; 4021, positioning block; 4022, swing arm; 4023, driving block; 403, plug-in block; 4031, slide groove; 4032, sliding rod; 404, driving rod. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0042] Example 1:

[0043] like Figures 1 to 9As shown, a pulley casting system includes an installation unit 100, a rotating unit 200, a transmission unit 300 and a locking unit 400. The installation unit 100 includes a base surface 1012, and four mutually symmetrical support legs 102 are fixedly installed above the base surface 1012. The four support legs 102 are provided with electric push rods 1021 on the side walls opposite to each other. The rotating unit 200 includes two first cams 2022 and a second cam 2023 and a casting workpiece 201. The two first cams 2022 and the second cam 2023 are symmetrical to each other. The casting workpiece 201 is provided with electric push rods 1021 on both sides opposite to each other. A plurality of pulley casting wax molds 2011 are arranged in a linear distribution; the locking unit 400 includes a plurality of plug-in blocks 403 arranged in a circumferential distribution, and a swing arm 4022 is provided at the bottom of each plug-in block 403, and each swing arm 4022 is symmetrical with each other, and the opposite end is provided on the positioning block 4021; the transmission unit 300 includes a driving assembly, which is used to drive the first cam 2022 and the second cam 2023 to rotate respectively, and the rotation of the first cam 2022 and the second cam 2023 is used to drive the casting workpiece 201 to rotate, and the driving assembly is also used to drive the locking unit 400 to unlock. When the locking unit 400 is unlocked by the driving assembly, the first wedge block 302 can be located at the bottom of the second wedge block 3021, thereby ensuring that the lower placement plate 4012 will not fall, and the first cam 2022 and the second cam 2023 can be rotated by continuing to move the driving assembly, thereby driving the casting workpiece 201 to rotate. When the casting workpiece 201 rotates, it can ensure that the melted wax can be discharged from the pulley casting wax mold 2011, so that the pulley casting cast in the pulley casting wax mold 2011 during subsequent casting is more precise.

[0044] like Figures 1 to 2 As shown, in a specific embodiment, two workbenches 1011 are provided at the bottom of the base 1012, and mounting support bases 101 are provided at the bottom of the two workbenches 1011. Circular notches 1013 are provided on the base 1012 and the workbenches 1011. In this configuration, the specific mounting position of the base 1012 is determined.

[0045] like Figures 1 to 3 As shown, further, two symmetrical slots are formed on the opposing side walls of each of the four support legs 102, and sliding rods 301 are slidably disposed within the slots. A fixing plate 3012 is disposed between each pair of sliding rods 301. A first wedge block 302 and a second wedge block 3021 are disposed on opposing side walls of each fixing plate 3012. Each first wedge block 302 and second wedge block 3021 are symmetrical to each other, and each first wedge block 302 and second wedge block 3021 have a sliding rod 301 disposed on opposing side walls. In this configuration, the installation positions of the first wedge block 302 and second wedge block 3021 are determined.

[0046] like Figures 1 to 3 As shown, further, two positioning rods 3015 are provided on the opposite side wall of each fixing plate 3012, and a mounting plate 3011 is provided between the other ends of each positioning rod 3015, and an L-shaped fixing plate 3014 is provided above each mounting plate 3011, and the other end of each L-shaped fixing plate 3014 is respectively provided on the supporting leg 102, and each positioning rod 3015 is provided with a return spring 3013, and the two ends of the return spring 3013 are respectively provided on the opposite side wall of the mounting plate 3011 and the fixing plate 3012, and each positioning rod 3015 is respectively inserted into the sliding rod 301. In this setting, it is ensured that when the hydraulic cylinder 401 pushes the sliding plate 4011 to drive the lower placement plate 4012 to move to a certain position, the first wedge block 302 and the second wedge block 3021 can push the fixed plate 3012 to move horizontally under the elastic force of the return spring 3013. When the fixed plate 3012 moves horizontally, it will be able to drive the sliding rod 301 to move horizontally. Therefore, the first wedge block 302 and the second wedge block 3021 can be driven to move by the sliding rod 301, so that the first wedge block 302 and the second wedge block 3021 are in contact with the bottom of the lower placement plate 4012.

[0047] Example 2:

[0048] The difference between the above embodiment and this embodiment is that: Figures 1 to 2 and Figure 4 As shown, a pulley casting system is provided. A first positioning plate 202 and a second positioning plate 2024 are respectively provided on the side walls of two casting workpieces 201. The two first positioning plates 202 and the second positioning plates 2024 are symmetrical to each other. A rotating rod 2021 is provided on the opposite side walls of the two first positioning plates 202 and the second positioning plates 2024. Each rotating rod 2021 is provided with a first cam 2022 and a second cam 2023 at one end away from the first positioning plate 202 and the second positioning plate 2024, respectively. The first cam 2022 and the second cam 2023 are symmetrical to each other. In this configuration, the installation positions and components of the first cam 2022 and the second cam 2023 are determined.

[0049] like Figures 1 to 2 and Figures 4 to 9As shown, in a specific embodiment, four hydraulic cylinders 401 are further provided above the base surface 1012, and the four hydraulic cylinders 401 are symmetrical with each other. Sliding plates 4011 are respectively provided above each of the four hydraulic cylinders 401, and mounting brackets 4015 are fixedly connected on all sides above the two sliding plates 4011. A top plate 4016 is provided between four of the mounting brackets 4015, and a connecting rod 4017 is provided on the mounting bracket 4015. The four connecting rods 4017 are staggered and symmetrical with each other, and a connecting rod 4018 is provided on the side of each of the four connecting rods 4017 away from the mounting bracket 4015. In this setting, it is ensured that when the hydraulic cylinder 401 continues to push the sliding plate 4011 to move, the connecting rod 4018 can be disengaged from the first cam 2022, thereby allowing the casting workpiece 201 to reset until a certain period of time has passed. At this time, the casting workpiece 201 is in a reset state, and the connecting rod 4018 set on the other side can push the second cam 2023 to rotate, allowing the casting workpiece 201 to rotate minus 90 degrees, thereby ensuring that the melted wax in the pulley casting wax mold 2011 can be discharged.

[0050] like Figures 1 to 2 and Figures 4 to 9 As shown, further, a fixed slot is provided in the middle of each of the two sliding plates 4011, and four rectangular slots 4013 are provided in the inner cavity of the fixed slot, and a lower placement plate 4012 is movably passed through the rectangular slot 4013. A cavity is provided in each of the two lower placement plates 4012, and placement slots 4014 are provided on the side walls. A semi-annular plate 103 is provided above the two lower placement plates 4012, and a driving slot is provided on the semi-annular plate 103 at the lower placement plate 4012. Upper inclined plates 4019 are slidably provided above the two semi-annular plates 103, and the two upper inclined plates 4019 are symmetrical to each other, and the two upper inclined plates 4019 respectively fit together with the inner cavity of the casting workpiece 201. A moving rod 402 is provided above the two positioning blocks 4021, and a driving block 4023 is fixedly connected below the two moving rods 402. The two driving blocks 4023 are respectively movable through the driving slots opened in the lower placement plate 4012 and the semi-ring plate 103, and a driving rod 404 is provided above the driving block 4023. The two driving rods 404 are movable through the upper inclined plate 4019. Two mutually symmetrical telescopic rods 1031 are provided at the bottom of the two semi-ring plates 103, and the bottom of each telescopic rod 1031 is set on the base surface 1012. In this setting, it is ensured that when the top of the upper inclined plate 4019 is in contact with the top of the inner cavity of the casting workpiece 201, the driving rod 404 can move vertically downward. When the driving rod 404 moves vertically downward, it can drive the driving block 4023 to move vertically downward. When the driving block 4023 moves vertically downward, it can drive the moving rod 402 to move vertically downward. When the moving rod 402 moves vertically downward, it can drive the positioning block 4021 to move vertically downward.

[0051] like Figures 1 to 2 and Figures 4 to 9 As shown, further, each plug-in block 403 is respectively fitted into the placement notch 4014 and the rectangular notch 4013. Two mutually symmetrical slide grooves 4031 are provided at the bottom of each plug-in block 403. A slide rod 4032 is slidably provided in the inner cavity of each slide groove 4031, and the other end of the slide rod 4032 is respectively provided at the bottom of the inner cavity of the lower placement plate 4012. This arrangement ensures that when the positioning block 4021 moves vertically downward, the swing arm 4022 can drive the plug-in block 403 to move out of the rectangular notch 4013 provided on the sliding plate 4011 with the assistance of the slide rod 4032 and the slide groove 4031. At the same time, the plug-in block 403 can also move out of the placement notch 4014 provided through the lower placement plate 4012, thereby achieving unlocking.

[0052] Example 3:

[0053] The present invention also discloses a method for casting a pulley casting, which comprises the following steps:

[0054] Step 1: First, during casting, the wax set in the pulley casting wax mold 2011 is heated by a heating component so that the wax can be melted;

[0055] Step 2: The staff controls the hydraulic cylinder 401 to operate, so that the hydraulic cylinder 401 can push the sliding plate 4011 to move vertically upward, thereby driving the lower placement plate 4012 to move vertically upward through the locking unit 400;

[0056] Step 3: When the hydraulic cylinder 401 pushes the sliding plate 4011 to move the lower placement plate 4012 to a certain position, the first wedge block 302 and the second wedge block 3021 can fit on the bottom of the lower placement plate 4012, and the locking unit 400 can be unlocked;

[0057] Step 4: When the hydraulic cylinder 401 continues to push the sliding plate 4011 to move, the connecting rod 4018 can drive the first cam 2022 to rotate, thereby driving the casting workpiece 201 to rotate, thereby rotating the casting workpiece 201 90 degrees, allowing the melted wax to be discharged from the pulley casting wax mold 2011;

[0058] Step 5: When the hydraulic cylinder 401 continues to push the sliding plate 4011 to move, the connecting rod 4018 can be disengaged from the first cam 2022, thereby restoring the casting 201. After a certain period of time, the casting 201 is in the reset state, and the connecting rod 4018 on the other side can push the second cam 2023 to rotate, causing the casting 201 to rotate minus 90 degrees, thereby ensuring that the melted wax in the pulley casting wax mold 2011 can be discharged;

[0059] Step 6: After the wax is discharged, the staff performs casting by reversing the direction of the casting workpiece 201, thereby ensuring the accuracy of casting.

[0060] The implementation principle of a pulley casting system of this embodiment is as follows:

[0061] First, during casting, the wax inside the wax mold 2011 of the pulley casting is heated by a heating assembly (the wax mold 2011 of the pulley casting has a shell formed on its exterior before casting, and the specific formation of the shell is conventional), thereby allowing the wax to melt (because the wax mold 2011 of the pulley casting and the casting workpiece 201 are now integrated, the casting workpiece 201 can be picked up and placed between the first positioning plate 202 and the second positioning plate 2024, and by activating the electric push rod 1021, the first positioning plate 202 and the second positioning plate 2024 can clamp and position the placed casting workpiece 201);

[0062] After the casting workpiece 201 is positioned, the worker controls the hydraulic cylinder 401 to operate, so that the hydraulic cylinder 401 can push the sliding plate 4011 to move vertically upward. When the sliding plate 4011 moves vertically upward, the locking unit 400 can drive the lower placement plate 4012 to move vertically upward.

[0063] When the hydraulic cylinder 401 pushes the sliding plate 4011 to drive the lower placement plate 4012 to move to a certain position (wherein moving to a certain position means that the initial positions of the first wedge block 302 and the second wedge block 3021 are close to the support leg 102, and the lower placement plate 4012 is through the middle of the opposite side of the first wedge block 302 and the second wedge block 3021, and the opposite side of the first wedge block 302 and the second wedge block 3021 is attached to the placement plate 4012), the first wedge block 302 and the second wedge block 3021 can be reset in the spring The spring 3013 pushes the fixing plate 3012 to move horizontally. When the fixing plate 3012 moves horizontally, the sliding rod 301 can be driven to move horizontally, so that the first wedge block 302 and the second wedge block 3021 can be driven to move by the sliding rod 301, so that the first wedge block 302 and the second wedge block 3021 can fit the bottom of the lower placement plate 4012 (because it can ensure that when the locking unit 400 is unlocked, the lower placement plate 4012 is located on the first wedge block 302 and the second wedge block 3021 and will not fall off). When the locking unit 400 is unlocked (specific unlocking is: at this time, the upper inclined plate 4019 moves to the inner cavity of the casting workpiece 201, and the top of the upper inclined plate 4019 has been in contact with the top of the inner cavity of the casting workpiece 201. When the contact is made, the driving rod 404 can move vertically downward. When the driving rod 404 moves vertically downward, it can drive the driving block 4023 to move vertically downward. When the driving block 4023 moves vertically downward, it can drive the moving rod 402 to move vertically downward. When the moving rod 402 moves vertically downward, it can drive the fixed rod 404 to move vertically downward. The positioning block 4021 moves vertically downward. When the positioning block 4021 moves vertically downward, it can drive the plug-in block 403 through the swing arm 4022, with the help of the slide rod 4032 and the slide groove 4031, to move out of the rectangular notch 4013 provided in the sliding plate 4011. At the same time, it can also move out of the placement notch 4014 provided through the lower placement plate 4012, thereby achieving unlocking. The reset of the moving rod 402 is due to the spring provided at the bottom of the positioning block 4021, and the other end of the spring is provided at the bottom of the inner cavity of the lower placement plate 4012).

[0064] At the same time, when the hydraulic cylinder 401 continues to push the sliding plate 4011 to move, the sliding plate 4011 can drive the mounting bracket 4015 to move vertically upward, and through the connecting rod 4017 provided on the mounting bracket 4015 and the connecting rod 4018 provided on the connecting rod 4017, the connecting rod 4018 can drive the first cam 2022 to rotate, thereby driving the casting workpiece 201 to rotate (when the casting workpiece 201 rotates, it can drive the upper inclined plate 4019 placed in the inner cavity to rotate with the assistance of the semi-annular plate 103, and When the upper inclined plate 4019 rotates, the driving rod 404 and the driving block 4023 are separated, allowing the driving rod 404 to slide on the semi-annular plate 103, thereby ensuring that the casting 201 can rotate. When the casting 201 rotates 90 degrees, the melted wax can be discharged from the pulley casting wax mold 2011 (because after the 90-degree rotation, the upper inclined plate 4019 rotates 90 degrees, and after the 90-degree rotation, the wax liquid slides onto the inclined surface of the upper inclined plate 4019 and can slide down the inclined surface).

[0065] When the hydraulic cylinder 401 continues to push the sliding plate 4011 to move, the connecting rod 4018 can be disengaged from the first cam 2022, thereby returning the casting 201 to its original position. After a certain period of time, the casting 201 is in the restored state, and the connecting rod 4018 on the other side can push the second cam 2023 to rotate, causing the casting 201 to rotate minus 90 degrees, thereby ensuring that the melted wax in the pulley casting wax mold 2011 can be discharged.

[0066] After the wax is discharged, the worker performs casting by reversing the direction of the casting workpiece 201, thereby ensuring the accuracy of casting.

Claims

1. A pulley casting system, comprising a mounting unit (100), a rotating unit (200), a transmission unit (300), and a locking unit (400), characterized in that: The mounting unit (100) comprises a base surface (1012), four mutually symmetrical supporting legs (102) are fixedly mounted above the base surface (1012), and electric push rods (1021) are provided on opposite side walls of the four supporting legs (102). The rotating unit (200) comprises two first cams (2022) and a second cam (2023) and a casting workpiece (201), wherein the two first cams (2022) are symmetrical to the second cam (2023), and a plurality of linearly distributed pulley casting wax molds (211) are provided on opposite sides of the casting workpiece (201); The locking unit (400) comprises a plurality of plug-in blocks (403) arranged in a circumferential distribution, a swing arm (4022) being provided at the bottom of each plug-in block (403), and each of the swing arms (4022) being symmetrical with each other, and having opposite ends provided on the positioning block (4021); The transmission unit (300) comprises a driving assembly, wherein the driving assembly is used to drive the first cam (2022) and the second cam (2023) to rotate respectively, and the first cam (2022) and the second cam (2023) rotate respectively to drive the casting workpiece (201) to rotate; Four hydraulic cylinders (401) are further provided above the base surface (1012), and the four hydraulic cylinders (401) are symmetrical with each other. Sliding plates (4011) are respectively provided above the four hydraulic cylinders (401), and mounting brackets (4015) are respectively fixedly connected on all four sides above the two sliding plates (4011). A top plate (4016) is provided between the four mounting brackets (4015), and a connecting rod (4017) is provided on the mounting bracket (4015). The four connecting rods (4017) are staggered and symmetrical with each other, and the four connecting rods (4017) are respectively fixed on the four sides above the two sliding plates (4011). A connecting rod (4018) is provided on one side away from the mounting bracket (4015), a fixed slot is provided in the middle of the two sliding plates (4011), four rectangular slots (4013) arranged in a circumferential distribution are provided in the inner cavity of the fixed slot, and a lower placement plate (4012) is movably passed through the rectangular slot (4013), a cavity is provided in the two lower placement plates (4012), and a placement slot (4014) is provided on the side walls, a semi-annular plate (103) is provided above the two lower placement plates (4012), and the semi-annular plate (103) is provided with a driving slot at the lower placement plate (4012), and the two semi-annular plates (103) are both slidably provided with upper inclined plates (4019), the two upper inclined plates (4019) are symmetrical to each other, and the two upper inclined plates (4019) respectively fit in with the inner cavity of the casting workpiece (201), a moving rod (402) is provided above the two positioning blocks (4021), and a driving block (4023) is fixedly connected below the two moving rods (402), and the two driving blocks (4023) are respectively movable through the driving slots opened at the lower placement plate (4012) and the semi-annular plate (103), and a driving rod (404) is provided above the driving block (4023), and the two driving rods (404) are fixedly connected below the two moving rods (402). 04) is movable through the upper inclined plate (4019), and two mutually symmetrical telescopic rods (1031) are provided at the bottom of the two semi-ring plates (103), and the bottom of each telescopic rod (1031) is provided on the base surface (1012), and each plug-in block (403) is respectively fitted in the placement notch (4014) and the rectangular notch (4013), and two mutually symmetrical sliding grooves (4031) are provided at the bottom of each plug-in block (403), and a sliding rod (4032) is slidably provided in the inner cavity of each sliding groove (4031), and the other end of the sliding rod (4032) is respectively provided at the bottom of the inner cavity of the lower placement plate (4012).

2. A pulley casting system according to claim 1, characterized in that: Two workbenches (1011) are provided at the bottom of the base surface (1012), and mounting support seats (101) are provided at the bottom of the two workbenches (1011). Circular notches (1013) are provided on the base surface (1012) and the workbenches (1011).

3. A pulley casting system according to claim 1, characterized in that: Two mutually symmetrical notches are provided on the side walls of the four supporting legs (102) facing each other, and a sliding rod (301) is slidably provided in the inner cavity of the notch, a fixing plate (3012) is provided between each of the sliding rods (301), a first wedge block (302) and a second wedge block (3021) are provided on the side walls of each of the fixing plates (3012) facing each other, each of the first wedge block (302) and the second wedge block (3021) are symmetrical to each other, and a sliding rod (301) is provided on the side walls of each of the first wedge block (302) and the second wedge block (3021) facing each other.

4. A pulley casting system according to claim 3, characterized in that: Two positioning rods (3015) are provided on opposite side walls of each fixing plate (3012); a mounting plate (3011) is provided between the other ends of each positioning rod (3015); an L-shaped fixing plate (3014) is provided above each mounting plate (3011); the other end of each L-shaped fixing plate (3014) is respectively provided on the supporting leg (102); a return spring (3013) is provided on each positioning rod (3015); and the two ends of the return spring (3013) are respectively provided on opposite side walls of the mounting plate (3011) and the fixing plate (3012); and each positioning rod (3015) is respectively inserted into the sliding rod (301).

5. The pulley casting system according to claim 1, characterized in that: A first positioning plate (202) and a second positioning plate (2024) are respectively provided on both side walls of the two casting workpieces (201); the two first positioning plates (202) and the second positioning plates (2024) are symmetrical to each other; a rotating rod (2021) is provided on opposite side walls of the two first positioning plates (202) and the second positioning plates (2024); a first cam (2022) and a second cam (2023) are respectively provided on one end of each rotating rod (2021) away from the first positioning plate (202) and the second positioning plate (2024); the first cam (2022) and the second cam (2023) are symmetrical to each other.

6. A method for casting a pulley casting, characterized in that: A pulley casting system applied to any one of claims 1 to 5, wherein the pulley casting method comprises the following steps: Step 1: First, during casting, the wax set in the pulley casting wax mold (2011) is heated by a heating component so that the wax can be melted; Step 2: The staff controls the hydraulic cylinder (401) to operate, so that the hydraulic cylinder (401) can push the sliding plate (4011) to move vertically upward, thereby driving the lower placement plate (4012) to move vertically upward through the locking unit (400); Step 3: When the hydraulic cylinder (401) pushes the sliding plate (4011) to move the lower placement plate (4012) to a certain position, the first wedge block (302) and the second wedge block (3021) can fit on the bottom of the lower placement plate (4012), and the locking unit (400) can be unlocked; Step 4: When the hydraulic cylinder (401) continues to push the sliding plate (4011) to move, the first cam (2022) can be driven to rotate through the connecting rod (4018), thereby driving the casting workpiece (201) to rotate, thereby allowing the casting workpiece (201) to rotate 90 degrees, so that the melted wax can be discharged from the pulley casting wax mold (2011); Step 5: When the hydraulic cylinder (401) continues to push the sliding plate (4011) to move, the connecting rod (4018) can be disengaged from the first cam (2022), thereby resetting the casting workpiece (201). After a certain period of time, the casting workpiece (201) is in the reset state, and the connecting rod (4018) provided on the other side can push the second cam (2023) to rotate, so that the casting workpiece (201) rotates minus 90 degrees, thereby ensuring that the melted wax in the pulley casting wax mold (2011) can be discharged; Step 6: After the wax is discharged, the staff performs casting by reversing the direction of the casting workpiece (201), thereby ensuring the accuracy of casting.

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