Pressure casting forming die for synchronous belt pulley

Abstract

The invention discloses a pressure casting forming die for a synchronous belt pulley, and relates to the technical field of belt pulley production. The pressure casting forming die for the synchronous belt pulley comprises a workbench, an upper die plate driven by an electric telescopic rod is assembled on the top of the workbench, an electric rotating rod is assembled on the top of the workbench, and the outer side of the electric rotating rod is in transmission connection with a lower die plate; an overturning demolding assembly is arranged on the side face of the workbench and comprises a first hydraulic device. According to the pressure casting forming die for the synchronous belt pulley, after casting forming operation is completed, the upper die plate is reset, an electric rotating rod is started, the lower die plate is driven to rotate, and a first hydraulic device, an arc-shaped rod, an ejector rod, a toothed rod, a first spring, an extrusion block, a fixing plate, a rotating shaft, a gear and an elastic cam are matched, so that the pressure casting forming die can be used for some turnover dies; and the molded belt pulley is more convenient during demolding, so that the use efficiency of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pulley production, in particular to a synchronous pulley pressure casting molding die. Background Art

[0002] Synchronous pulley is an important component widely used in mechanical transmission systems, and is commonly used in mechanical systems such as automobile engines, transmission equipment, and fans. It transmits power through the meshing between the synchronous belt and the pulley, and has the advantages of high transmission efficiency, low noise, and long life. There are many ways to produce synchronous pulleys, among which die casting technology is a common and cost-effective manufacturing method.

[0003] Chinese patent CN109865801B, authorized and announced on August 17, 2021, discloses a pulley casting mold, which includes a workbench, a lower mold is installed on the workbench, and a movable plate is slidably installed on the workbench, an upper mold is connected to the movable plate, and a demoulding slider is slidably installed on the workbench in the vertical direction, and a sliding cavity is embedded in the side of the lower mold against the demoulding slider. In the above application document, the upper mold continues to slide upward after being separated from the lower mold. When the upper end of the upper mold contacts the top of the sliding cavity, the upper mold drives the demoulding slider to slide upward, thereby performing the corresponding demoulding operation. However, for some flip-type molds, when the lower mold is flipped and demoulded, the molded pulley is still difficult to demould, thereby affecting the use efficiency of the device. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a synchronous pulley pressure casting forming mold, which solves the problems raised in the above background technology. To achieve the above purpose, the present invention is implemented through the following technical scheme: a synchronous pulley pressure casting forming mold, comprising a workbench, the top of which is equipped with an upper mold plate driven by an electric telescopic rod, the top of which is equipped with an electric rotating rod, and the outer side of the electric rotating rod is transmission-connected with a lower mold plate; The side of the workbench is provided with a flip demoulding assembly, which includes a hydraulic device 1, one end of which is slidably connected to an arc rod, one end of which is slidably connected to an ejector rod, the other end of which is slidably connected to a gear rod, the side of the arc rod is fixedly connected to a spring 1, the side of the workbench is fixedly connected to an extrusion block, the side of the lower template is fixedly connected to a fixed plate, the internal rotation of the fixed plate is connected to a through shaft, one end of the shaft is fixedly connected to a gear, the other end of the shaft is slidably connected to an elastic cam, and the gear is meshed with the gear rod. The device can be used for some flip-type molds, making it more convenient to demould the molded pulley, thereby improving the use efficiency of the device.

[0005] Preferably, a through opening is provided inside the lower template, and the cross-sectional shape of the opening is matched with the cross-sectional shape of the ejector rod.

[0006] Preferably, one end of the spring 1 away from the arc-shaped rod is connected to the inner wall of the hydraulic device 1.

[0007] Preferably, the sides of the workbench are respectively equipped with a servo motor and a fixed seat, the side of the servo motor is connected to a screw rod, the outer side of the screw rod is connected to a sliding block by threading, the top of the workbench is provided with an auxiliary cleaning component, the auxiliary cleaning component includes a hydraulic device 2, the bottom of the hydraulic device 2 is slidably connected to a push plate, the side of the sliding block is fixedly connected to a cross plate, the bottom of the cross plate is fixedly connected to a connecting column, the outer side of the connecting column is slidably connected to a cleaning plate, and the top of the cleaning plate is fixedly connected to a second spring. The cleaning effect of the device on the debris on the workbench is improved.

[0008] Preferably, the push plate is located at the top of the cleaning plate and is in contact with the cleaning plate.

[0009] Preferably, one end of the spring 2 away from the cleaning plate is connected to the transverse plate.

[0010] Preferably, the side of the workbench is equipped with a collection bin, and an auxiliary storage assembly is arranged inside the collection bin, and the auxiliary storage assembly includes a fixed column, a positioning plate is fixedly connected to the outer side of the fixed column, and a movable plate is connected to the top of the positioning plate by setting a spring, and a connecting plate is fixedly connected to the side of the push plate, and a rotating rod is rotatably connected to the side of the movable plate, and a sorting plate is fixedly connected to the outer side of the rotating rod. The debris falling into the collection bin is sorted to a certain extent to prevent the debris in the center of the collection bin from overflowing the collection bin due to excessive accumulation, making the device easier to use.

[0011] Preferably, the connecting plate is located at the top of the movable plate and is in contact with the movable plate.

[0012] The present invention provides a synchronous pulley pressure casting forming die, which has the following beneficial effects: (1) After the synchronous pulley pressure casting molding die completes the casting molding operation, the upper mold plate is reset, the electric rotating rod is started, and the lower mold plate is driven to rotate. In combination with a hydraulic device, an arc rod, an ejector rod, a gear rod, a spring, an extrusion block, a fixed plate, a rotating shaft, a gear and an elastic cam, the die can be used for some flip-type molds, making it more convenient to demold the molded pulley, thereby improving the use efficiency of the device.

[0013] (2) In the synchronous pulley pressure casting mold, after the workpiece is completely demolded, it falls on the top of the workbench, and some material debris falls on the workbench together. The workpiece is removed and the lower mold plate is maintained in a rotated state. Then, in conjunction with the second hydraulic device, the push plate, the cross plate, the connecting column, the second spring, the servo motor, the fixed seat, the screw and the sliding block, the cleaning plate moving in the horizontal direction can be squeezed downward to a certain extent, thereby improving the cleaning effect of the device on the debris on the workbench.

[0014] (3) The synchronous pulley pressure casting molding die, when the cleaning plate moves to the side to clean the debris into the collection bin, cooperates with the fixed column, the positioning plate, the spring three, the movable plate, the connecting plate, the rotating rod and the sorting plate to sort the debris falling into the collection bin to a certain extent, preventing the debris in the center of the collection bin from overflowing from the collection bin due to excessive accumulation, making the device easier to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the flip demoulding component of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 6 It is a schematic diagram of the three-dimensional structure of the auxiliary cleaning component of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the auxiliary storage assembly of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C in the middle.

[0016] In the figure: 100, workbench; 200, upper template; 300, electric rotating rod; 400, lower template; 500, collection bin; 600, servo motor; 700, fixed seat; 800, screw rod; 900, sliding block; 1000, flip demoulding assembly; 1001, hydraulic device 1; 1002, arc rod; 1003, ejector rod; 1004, gear rod; 1005, spring 1; 1006, extrusion block; 1007, fixing plate; 1008, rotating shaft; 1009, gear; 1010, elastic cam; 1100, auxiliary cleaning assembly; 1101, hydraulic device 2; 1102, push plate; 1103, horizontal plate; 1104, connecting column; 1105, cleaning plate; 1106, spring 2; 1200, auxiliary storage assembly; 1201, fixed column; 1202, positioning plate; 1203, spring three; 1204, movable plate; 1205, connecting plate; 1206, rotating rod; 1207, sorting plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0018] See also Figure 1-Figure 5 A synchronous pulley pressure casting mold comprises a workbench 100, an upper mold plate 200 driven by an electric telescopic rod is mounted on the top of the workbench 100, an electric rotating rod 300 is mounted on the top of the workbench 100, and a lower mold plate 400 is transmission-connected to the outer side of the electric rotating rod 300; The side of the workbench 100 is provided with a flip demoulding assembly 1000, which includes a hydraulic device 1001, and one end of the hydraulic device 1001 is slidably connected to an arc rod 1002. The electric telescopic rod is started to drive the upper template 200 to move downward, so that the upper template 200 moves to the lower template 400, and cooperates with the lower template 400 to perform corresponding casting molding operations. After the operation is completed, the upper template 200 is reset, and the electric rotating rod 300 is started to drive the lower template 400 connected to it to rotate, and the electric rotating rod 300 synchronously drives the arc rod 1002 to rotate. One end of the hydraulic device 1001 is slidably connected to an ejector rod 1003, and a through opening is opened inside the lower template 400, and the cross-sectional shape of the opening is adapted to the cross-sectional shape of the ejector rod 1003. The other end of the hydraulic device 1001 is slidably connected to a gear rod 1004. When the arc rod 1002 rotates to the extrusion block 1006, the arc rod 1002 slides into the hydraulic device 1001 due to the extrusion of the extrusion block 1006, so that the pressure in the hydraulic device 1001 increases, driving the ejector rod 1003 and the gear rod 1004 that are slidably connected to the hydraulic device 1001 to move. The side of the arc rod 1002 is fixedly connected with a spring 1005, and one end of the spring 1005 away from the arc rod 1002 is connected to the inner wall of the hydraulic device 1001. The side of the workbench 100 is fixedly connected with the extrusion block 1006, and the side of the lower mold plate 400 is fixedly connected with a fixed plate 1007. The interior of the fixed plate 1007 is rotatably connected with a through-going rotating shaft 1008, and one end of the rotating shaft 1008 is fixedly connected with a gear 1009. When the ejector rod 1003 moves and passes through the lower template 400, the workpiece in the lower template 400 can be ejected; at the same time, the moving gear rod 1004 drives the gear 1009 meshing with it to rotate, so that the gear 1009 drives the rotating shaft 1008 fixedly connected to it to rotate. The other end of the rotating shaft 1008 is slidably connected with an elastic cam 1010, and the gear 1009 meshes with the gear rod 1004. When the rotating shaft 1008 rotates, it can drive the elastic cam 1010 fixedly connected to it to rotate, and the rotating elastic cam 1010 knocks the outer wall of the lower template 400 once, causing it to vibrate to a certain extent, and then cooperates with the ejector rod 1003 to completely demold the workpiece in the lower template 400. In this way, the device can be used for some flip-type molds, making it more convenient to demold the molded pulley, thereby improving the use efficiency of the device. After the workpiece is completely demoulded, the electric rotating rod 300 rotates in the opposite direction to reset, so that the arc rod 1002 slowly loses the restriction of the extrusion block 1006. At this time, the arc rod 1002 can be reset under the action of the spring 1005. Similarly, the ejector rod 1003 and the gear rod 1004 are reset. At this time, the device is completely reset to facilitate the next operation.

[0019] When in use, the electric telescopic rod is started to drive the upper template 200 to move downward, so that the upper template 200 moves to the lower template 400, and cooperates with the lower template 400 to perform corresponding casting molding operations. After the operation is completed, the upper template 200 is reset, and the electric rotating rod 300 is started to drive the lower template 400 connected to it to rotate. The electric rotating rod 300 simultaneously drives the arc rod 1002 to rotate. When the arc rod 1002 rotates to the extrusion block 1006, the arc rod 1002 slides into the hydraulic device 1001 due to the extrusion of the extrusion block 1006, so that the pressure in the hydraulic device 1001 increases, driving the ejector rod 1003 and the gear rod 1004 slidingly connected to the hydraulic device 1001 to move, and the ejector rod 1003 passes through the lower template 400, and the lower template 400 is ejected; at the same time, the moving gear rod 1004 drives the gear 1009 meshing therewith to rotate, so that the gear 1009 drives the rotating shaft 1008 fixedly connected thereto to rotate, and the rotating shaft 1008 drives the elastic cam 1010 fixedly connected thereto to rotate, and the rotating elastic cam 1010 knocks the outer wall of the lower template 400 once, causing it to vibrate to a certain extent, and then cooperates with the ejector rod 1003 to completely demould the workpiece in the lower template 400; after the workpiece is completely demoulded, the electric rotating rod 300 rotates in the opposite direction to reset, so that the arc rod 1002 slowly loses the restriction of the extrusion block 1006. At this time, the arc rod 1002 can be reset under the action of the spring 1005. Similarly, the ejector rod 1003 and the gear rod 1004 are reset. Embodiment 2

[0020] See also Figure 1-Figure 6On the basis of the first embodiment, the sides of the workbench 100 are respectively equipped with a servo motor 600 and a fixed seat 700, the side of the servo motor 600 is transmission-connected with a screw rod 800, the outer side of the screw rod 800 is threadedly connected with a sliding block 900, and the top of the workbench 100 is provided with an auxiliary cleaning component 1100, the auxiliary cleaning component 1100 includes a hydraulic device 1101, the bottom of the hydraulic device 1101 is slidably connected with a push plate 1102, and the side of the sliding block 900 is fixedly connected with a horizontal plate 1103. After the workpiece is completely demoulded, it falls on the top of the workbench 100, and some of the material debris falls on the workbench 100 together with it. The workpiece is removed and the lower template 400 is maintained in a rotated state. At this time, the pressure in the hydraulic device 1001 is in an increased state. At the same time, the servo motor 600 is started to drive the screw 800 connected to the servo motor 600 to rotate. The sliding block 900 assembled on the screw 800 is restricted by the fixed seat 700, so it moves in the horizontal direction. The sliding block 900 synchronously drives the horizontal plate 1103 fixedly connected thereto to move. The bottom of the horizontal plate 1103 is fixedly connected with a connecting column 1104, and the outer side of the connecting column 1104 is slidably connected with a cleaning plate 1105. The push plate 1102 is located at the top position of the cleaning plate 1105 and contacts the cleaning plate 1105. The top of the cleaning plate 1105 is fixedly connected with a spring 2 1106. The spring 2 1106 is far away from the end of the cleaning plate 1105 and connected to the horizontal plate 1103. When the horizontal plate 1103 moves, the horizontal plate 1103 drives the cleaning plate 1105 to move synchronously through the spring 2 1106 to clean the debris on the workbench 100. When the pressure in the hydraulic device 1001 is in an increasing state, the pressure in the hydraulic device 2 1101 connected to the hydraulic device 1001 increases accordingly, driving the push plate 1102 slidingly connected to the hydraulic device 2 1101 to move downward, thereby squeezing the cleaning plate 1105 moving in the horizontal direction downward to a certain extent, thereby improving the device's cleaning effect on the debris on the workbench 100.

[0021] When in use, on the basis of the first embodiment, after the workpiece is completely demoulded, it falls on the top of the workbench 100, and some of the material debris falls on the workbench 100 together with it. The workpiece is removed and the lower template 400 is maintained in a rotated state. At this time, the pressure in the hydraulic device 1001 is in an increased state, and the servo motor 600 is started at the same time, which can drive the screw rod 800 connected to the servo motor 600 to rotate. The sliding block 900 assembled on the screw rod 800 is restricted by the fixed seat 700, so that it moves in the horizontal direction, and the sliding Block 900 synchronously drives the horizontal plate 1103 fixedly connected thereto to move, so that the horizontal plate 1103 drives the cleaning plate 1105 to move synchronously through the spring 2 1106 to clean the debris on the workbench 100. When the pressure in the hydraulic device 1001 is in an increasing state, the pressure in the hydraulic device 2 1101 connected to the hydraulic device 1001 increases accordingly, driving the push plate 1102 slidingly connected to the hydraulic device 2 1101 to move downward, thereby squeezing the cleaning plate 1105 moving in the horizontal direction downward to a certain extent. Embodiment 3

[0022] See also Figure 1-Figure 8On the basis of the first and second embodiments, the side of the workbench 100 is equipped with a collection bin 500, and the inside of the collection bin 500 is provided with an auxiliary storage assembly 1200, which includes a fixed column 1201, a positioning plate 1202 is fixedly connected to the outside of the fixed column 1201, and the top of the positioning plate 1202 is connected to the movable plate 1204 by setting a spring three 1203, and a connecting plate 1205 is fixedly connected to the side of the push plate 1102, and the connecting plate 1205 is located at the top of the movable plate 1204 and contacts the movable plate 1204. When the cleaning plate 1105 moves sideways to clean the debris into the collection bin 500, the push plate 1102 moving downwards synchronously drives the connecting plate 1205 fixedly connected thereto to move downwards, so that the connecting plate 1205 presses the movable plate 1204, and the movable plate 1204 then presses the spring three 1203 and slides downward on the outer surface of the fixed column 1201. The side of the movable plate 1204 is rotatably connected to a rotating rod 1206, and the outer side of the rotating rod 1206 is fixedly connected to a sorting plate 1207. When the movable plate 1204 compresses the spring three 1203 and slides downward on the outer surface of the fixed column 1201, the sorting plate 1207 fixedly connected to the rotating rod 1206 is in an inclined state because the side of the movable plate 1204 is rotatably connected to the rotating rod 1206, and the other end of the sorting plate 1207 slides on the inner wall surface of the collecting bin 500, so that the movable plate 1204 moves downward and the sorting plate 1207 slides sideways accordingly; after the lower template 400 is reset, the sorting plate 1207 can be reset, and the reciprocating sorting plate 1207 can sort the debris falling into the collecting bin 500 to a certain extent, preventing the debris in the center of the collecting bin 500 from overflowing the collecting bin 500 due to excessive accumulation, making the device easier to use.

[0023] When in use, on the basis of Example 1 and Example 2, when the cleaning plate 1105 moves sideways to clean the debris into the collection bin 500, the downwardly moving push plate 1102 simultaneously drives the connecting plate 1205 fixedly connected thereto to move downward, so that the connecting plate 1205 squeezes the movable plate 1204, and the movable plate 1204 then squeezes the spring three 1203 and slides downward on the outer surface of the fixed column 1201. Because the side rotation of the movable plate 1204 is connected to the rotating rod 1206, the sorting plate 1207 fixedly connected to the rotating rod 1206 is in an inclined state, and the other end of the sorting plate 1207 slides on the inner wall surface of the collection bin 500, so that the movable plate 1204 moves downward while the sorting plate 1207 slides sideways accordingly; when the lower template 400 is reset, the sorting plate 1207 can be reset, and the reciprocating sorting plate 1207 can sort the debris that falls into the collection bin 500 to a certain extent.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A synchronous pulley pressure casting mold, comprising a workbench (100), an upper mold plate (200) driven by an electric telescopic rod is mounted on the top of the workbench (100), an electric rotating rod (300) is mounted on the top of the workbench (100), and a lower mold plate (400) is transmission-connected to the outer side of the electric rotating rod (300); Features: A flip demoulding assembly (1000) is arranged on the side of the workbench (100), and the flip demoulding assembly (1000) comprises a hydraulic device (1001), one end of the hydraulic device (1001) is slidably connected to an arc rod (1002), one end of the hydraulic device (1001) is slidably connected to an ejection rod (1003), the other end of the hydraulic device (1001) is slidably connected to a gear rod (1004), and the side of the arc rod (1002) is fixedly connected to a spring (1003). 1005), the side of the workbench (100) is fixedly connected to an extrusion block (1006), the side of the lower template (400) is fixedly connected to a fixed plate (1007), the interior of the fixed plate (1007) is rotatably connected to a penetrating shaft (1008), one end of the shaft (1008) is fixedly connected to a gear (1009), the other end of the shaft (1008) is slidably connected to an elastic cam (1010), and the gear (1009) is meshed with the gear rod (1004).

2. A synchronous pulley pressure casting mold according to claim 1, characterized in that: The lower template (400) is provided with a through opening inside, and the cross-sectional shape of the opening is compatible with the cross-sectional shape of the ejector rod (1003).

3. A synchronous pulley pressure casting mold according to claim 2, characterized in that: One end of the spring 1 (1005) away from the arc-shaped rod (1002) is connected to the inner wall of the hydraulic device 1 (1001).

4. The synchronous pulley pressure casting mold according to claim 1, characterized in that: The sides of the workbench (100) are respectively equipped with a servo motor (600) and a fixed seat (700); the side of the servo motor (600) is transmission-connected with a lead screw (800); the outer side of the lead screw (800) is threadedly connected with a sliding block (900); the top of the workbench (100) is provided with an auxiliary cleaning component (1100); the auxiliary cleaning component (1100) comprises a hydraulic device 2 (1101); the bottom of the hydraulic device 2 (1101) is slidably connected with a push plate (1102); the side of the sliding block (900) is fixedly connected with a transverse plate (1103); the bottom of the transverse plate (1103) is fixedly connected with a connecting column (1104); the outer side of the connecting column (1104) is slidably connected with a cleaning plate (1105); the top of the cleaning plate (1105) is fixedly connected with a spring 2 (1106).

5. The synchronous pulley pressure casting mold according to claim 4, characterized in that: The push plate (1102) is located at the top of the cleaning plate (1105) and is in contact with the cleaning plate (1105).

6. The synchronous pulley pressure casting mold according to claim 4, characterized in that: One end of the second spring (1106) away from the cleaning plate (1105) is connected to the transverse plate (1103).

7. The synchronous pulley pressure casting mold according to claim 4, characterized in that: The side of the workbench (100) is equipped with a collection bin (500), and the interior of the collection bin (500) is provided with an auxiliary storage assembly (1200), and the auxiliary storage assembly (1200) comprises a fixed column (1201), the outer side of the fixed column (1201) is fixedly connected to a positioning plate (1202), the top of the positioning plate (1202) is connected to a movable plate (1204) by means of a spring three (1203), the side of the push plate (1102) is fixedly connected to a connecting plate (1205), the side of the movable plate (1204) is rotatably connected to a rotating rod (1206), and the outer side of the rotating rod (1206) is fixedly connected to a sorting plate (1207).

8. The synchronous pulley pressure casting mold according to claim 7, characterized in that: The connecting plate (1205) is located at the top of the movable plate (1204) and is in contact with the movable plate (1204).

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