A blanking mechanism for machining gear blanks

Abstract

This utility model relates to the field of gear blank processing technology, specifically to a blanking mechanism for processing gear blanks, including a housing. The ejection mechanism includes an ejection block, with multiple ejection shafts fixedly connected to the top of the ejection block. A pneumatic pipe is slidably connected to the outside of the ejection shaft, and a first piston is fixedly connected to the outside of the ejection shaft. A connecting rod is fixedly connected to the bottom of the first piston, and an ejection spring is fixedly connected to the bottom of the connecting rod. A fixed shaft is fixedly connected to the bottom of the pneumatic pipe. In this utility model, compressed gas enters the interior of a gas collecting tank through a vent pipe, and then compresses a second piston slidably connected inside the gas collecting tank, causing the upper mold to release the compression of the gear blank. Simultaneously, the ejection spring and the return spring release the elastic force absorbed during the compression process. The return spring compresses the second piston to slide upward, thereby squeezing the gear blank out of the interior of the lower mold.

Description

Technical Field

[0001] This utility model relates to the field of gear blank processing technology, and in particular to a blanking mechanism for processing gear blanks. Background Technology

[0002] Plastic buckets are commonly used in chemical, food, and logistics industries. The quality of the mixing process determines the performance of the plastic buckets. Plastic buckets are usually made by mixing base resins such as polyethylene and polypropylene, color masterbatches, fillers, and stabilizers. The uniformity of the mixing directly affects the mechanical strength, aging resistance, and appearance quality of the plastic buckets.

[0003] Existing technology patent document CN219924464U discloses a gearbox gear blank production system, including: a chain conveyor belt, a medium-frequency heating furnace, and forging equipment; a feeding device, which includes a frame, a hopper, a feeding assembly, and a lifting mechanism. The feeding assembly includes a lower top plate, a middle top plate, and an upper top plate arranged from low to high; and a first feeding guide plate, a second feeding guide plate, and a third feeding guide plate arranged from low to high. The lower top plate receives the raw blank from the bottom plate of the hopper, the middle top plate receives the raw blank from the first feeding guide plate, and the upper top plate receives the raw blank from the second feeding guide plate. The chain conveyor belt receives the raw blank from the third feeding guide plate. The lifting mechanism simultaneously lifts the upper top plate, the middle top plate, and the upper top plate, and the raw blank in the hopper is transported step by step to the chain conveyor belt. This utility model can solve the problem of inconvenience in feeding gear blanks onto the chain conveyor belt during existing gear blank processing.

[0004] Existing technologies effectively solve the problem of feeding gear blanks into the chain conveyor belt during some gear blank processing steps, greatly improving production efficiency and operational convenience. However, this automated feeding method does not consider the unloading problem of gear blanks after extrusion molding. During extrusion molding, due to changes in the shape and size of the gear blank, it often enters the mold, making unloading difficult and inconvenient. The space constraints inside the mold make it difficult for the blank to detach smoothly, resulting in complexity and delays in the unloading process. Utility Model Content

[0005] The purpose of this utility model is to provide a blanking mechanism for processing gear blanks, which solves the problem that traditional blanking mechanisms are difficult to improve the production efficiency of the device.

[0006] To achieve the above objectives, this utility model provides a blanking mechanism for processing gear blanks, including a housing, a protective block fixedly connected to the top of the housing, a pressing push rod fixedly connected inside the protective block, an upper mold fixedly connected to the driving end of the pressing push rod, the upper mold slidably connected to the outside of the housing, a lower mold fixedly connected to the top inside the housing, an ejection mechanism fixedly connected inside the housing, and a blanking mechanism fixedly connected to the rear inside the housing.

[0007] The ejection mechanism includes an ejection block, which is slidably connected to the outside of the housing. Multiple ejection shafts are fixedly connected to the top of the ejection block. A pneumatic tube is slidably connected to the outside of each ejection shaft. A first piston is fixedly connected to the outside of the ejection shaft, and the outside of the first piston contacts the inner wall of the pneumatic tube. A connecting rod is fixedly connected to the bottom of the first piston, and an ejection spring is fixedly connected to the bottom of the connecting rod. A fixed shaft is fixedly connected to the bottom of the pneumatic tube. The outside of the connecting rod is slidably connected to the inside of the fixed shaft. The outside of the ejection spring is fixedly connected to the inside of the fixed shaft. A pneumatic auxiliary component is fixedly connected to the inside of the pneumatic tube.

[0008] The feeding mechanism includes a feeding push rod, the front side of which is fixedly connected to the rear side of the housing. A push block is fixedly connected to the driving end of the feeding push rod. A cleaning block is fixedly connected to the front side of the push block. The bottom of the cleaning block contacts the inner top of the housing. A feeding block is fixedly connected to the inside of the housing. A base is fixedly connected to the bottom of the housing. A waste bin is slidably connected to the inside of the base. A finished product bin is slidably connected to the inside of the base. The top of the finished product bin corresponds to the bottom of the feeding block.

[0009] The pneumatic auxiliary component includes multiple vent pipes. The outside of each vent pipe is fixedly connected to the inside of the pneumatic tube. The other end of each vent pipe is fixedly connected to a gas collection tank. A second piston is slidably connected inside the gas collection tank. A return spring is fixedly connected to the bottom of the second piston. The other end of the return spring is fixedly connected to the top of the gas collection tank.

[0010] The pneumatic tube has an internal cavity, the first piston is slidably connected to the outside of the cavity, the ejector shaft is slidably connected to the outside of the cavity, the connecting rod is slidably connected to the outside of the cavity, and the vent pipe is in contact with the inner wall of the cavity.

[0011] The fixed shaft has an internal mounting groove, the ejector spring is externally fixedly connected to the inside of the mounting groove, and the connecting rod is externally slidably connected to the inside of the mounting groove.

[0012] The gas collecting tank has a pressure groove inside, the second piston is slidably connected to the inside of the pressure groove, and the outside of the vent pipe is in contact with the inner wall of the pressure groove.

[0013] The feeding block has multiple through holes inside, and the top of the waste bin corresponds to the bottom of the multiple through holes.

[0014] The cleaning block is a triangular ramp, and collection blocks are provided on the left and right sides of the cleaning block.

[0015] This utility model discloses a blanking mechanism for processing gear blanks. A pressing push rod drives an upper die to reciprocate up and down. During this movement, the upper die cooperates with a lower die inside the housing to compress the gear blank. As the gear blank slides downwards, it compresses an ejector block, which in turn drives multiple ejector shafts fixed to its bottom to slide. A first piston, fixed outside the ejector shafts, slides along with the shafts, increasing the air pressure inside the air pipe. The compressed gas enters the air collection tank through a vent pipe, and then compresses a second piston slidably connected inside the air collection tank. The connecting rod, fixed to the bottom of the first piston, slides along with the first piston, squeezing the ejector spring. Finally, after the gear blank is extruded and formed, the upper mold releases the pressure on the gear blank. At the same time, the ejector spring and the return spring release the elastic force absorbed during the extrusion process. The return spring squeezes the second piston to slide upward, and the ejector spring pushes the connecting rod to slide upward, finally pushing the ejector block to slide upward, thereby squeezing the gear blank out of the lower mold. Then, with the assistance of the feeding assembly, the lower mold is pushed into the finished product box, thereby reducing the tediousness and resource consumption of manual feeding of transmission gear blanks, and thus improving the efficiency of gear blank processing.

[0016] In this invention, when the gear blank is ejected by the ejection mechanism, the feeding push rod fixed to the rear side of the housing is activated, thereby causing the pushing block fixed to the drive end of the feeding push rod to slide. Then, the pushing block drives the cleaning block to slide. Through the design of the inclined design of the cleaning block and the design of the bottom of the cleaning block contacting the top inside the housing, the cleaning block pushes the waste generated during the extrusion molding of the gear blank and the finished gear blank together to the feeding block during the sliding process. With the help of multiple through holes opened inside the feeding block, the waste is separated from the finished gear blank. Finally, the waste is collected by the waste bin, thereby avoiding the use of the device due to the lack of cleaning of waste, and also improving the utilization rate of materials in the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional schematic diagram of a blanking mechanism for processing gear blanks according to the present invention.

[0019] Figure 2 This is a schematic diagram of the ejector block of a feeding mechanism for processing gear blanks proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the cleaning block of a blanking mechanism for processing gear blanks according to the present invention.

[0021] Figure 4 This is a schematic diagram of the base of a blanking mechanism for processing gear blanks according to the present invention.

[0022] Figure 5 for Figure 3 A cross-sectional view at point A in the middle.

[0023] In the diagram: 1. Shell; 2. Protective block; 3. Extrusion push rod; 4. Upper mold; 5. Discharge push rod; 6. Push block; 7. Cleaning block; 8. Feeding block; 9. Finished product box; 10. Waste box; 11. Base; 12. Ejection block; 13. Lower mold; 14. Fixed shaft; 15. Ejection spring; 16. Connecting rod; 17. First piston; 18. Ejection shaft; 19. Vent pipe; 20. Air collection tank; 21. Second piston; 22. Air pressure pipe; 23. Return spring. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] Please see Figure 1 , Figure 4 , Figure 5This utility model provides a technical solution: a feeding mechanism for processing gear blanks, including a housing 1. The housing 1 serves as the basic structure of the entire feeding mechanism, playing the role of bearing and supporting the entire device. A protective block 2 is fixedly connected to the top of the housing 1. The protective block 2 is fixed to the top of the housing 1, and its main function is to protect the safety of the internal extrusion push rod 3. The extrusion push rod 3 is fixedly connected inside the protective block 2. The extrusion push rod 3 is used to drive the upper mold 4 for extrusion molding. The driving end of the extrusion push rod 3 is fixedly connected to the upper mold 4. The upper mold 4 is located at the front end of the extrusion push rod 3 and is responsible for molding the gear blank during the extrusion process. The upper mold 4 is slidably connected to the outside of the housing 1. A lower mold 13 is fixedly connected to the top of the inside of the housing 1. The lower mold 13 is fixed to the top of the inside of the housing 1 and cooperates with the upper mold 4 to form the gear blank. An ejection mechanism is fixedly connected inside the housing 1. The ejection mechanism mainly realizes the function of removing the gear blank from the mold. A feeding mechanism is fixedly connected to the rear inside of the housing 1. The feeding mechanism ensures smooth flow during the feeding process.

[0026] The ejection mechanism includes an ejection block 12, which slides to compress the gear blank, thereby ejecting the gear blank. The ejection block 12 is externally slidably connected to the inside of the housing 1. Multiple ejection shafts 18 are fixedly connected to the top of the ejection block 12. The sliding connection structure of the ejection shafts 18 allows them to move freely inside the housing 1, cooperating with the ejection block 12 to push the gear blank. A pneumatic pipe 22 is externally slidably connected to the ejection shafts 18. A pneumatic auxiliary component is installed inside the pneumatic pipe 22, responsible for driving the movement of the ejection block 12 and the ejection shafts 18 using air pressure. The ejection shafts 18 are externally fixedly connected to... The first piston 17 has its outer surface in contact with the inner wall of the pneumatic tube 22. A connecting rod 16 is fixedly connected to the bottom of the first piston 17, and an ejector spring 15 is fixedly connected to the bottom of the connecting rod 16. A fixed shaft 14 is fixedly connected to the bottom of the pneumatic tube 22. The outer surface of the connecting rod 16 is slidably connected to the inside of the fixed shaft 14. The outer surface of the ejector spring 15 is fixedly connected to the inside of the fixed shaft 14. A pneumatic auxiliary component is fixedly connected to the inside of the pneumatic tube 22. An installation groove is provided inside the fixed shaft 14. The outer surface of the ejector spring 15 is fixedly connected to the inside of the installation groove. The outer surface of the connecting rod 16 is slidably connected to the inside of the installation groove.

[0027] The pneumatic auxiliary component includes multiple vent pipes 19. The outside of the vent pipe 19 is fixedly connected to the inside of the pneumatic pipe 22. The other end of the vent pipe 19 is fixedly connected to an air collection tank 20. A second piston 21 is slidably connected inside the air collection tank 20. The second piston 21 is provided inside the air collection tank 20. The change of air pressure is adjusted by its sliding to control the pushing force of the ejector block 12. The second piston 21 is reset by the return spring 23 to ensure the normal operation of the pneumatic system. The return spring 23 is fixedly connected to the bottom of the second piston 21, and the other end of the return spring 23 is fixedly connected to the top of the air collection tank 20. The air pressure pipe 22 has a cavity inside. The outside of the first piston 17 is slidably connected to the inside of the cavity. The outside of the ejector shaft 18 is slidably connected to the inside of the cavity. The outside of the connecting rod 16 is slidably connected to the inside of the cavity. The outside of the vent pipe 19 is in contact with the inner wall of the cavity. The air collection tank 20 has a pneumatic groove inside. The outside of the second piston 21 is slidably connected to the inside of the pneumatic groove. The outside of the vent pipe 19 is in contact with the inner wall of the pneumatic groove.

[0028] like Figures 1 to 3 As shown, the unloading mechanism includes an unloading push rod 5. The push rod 5, through the pushing force of the push block 6, propels the gear blank smoothly towards the lower mold 13, ensuring smooth flow during the unloading process. The front side of the unloading push rod 5 is fixedly connected to the rear side of the housing 1. The drive end of the unloading push rod 5 is fixedly connected to the push block 6. The front side of the push block 6 is fixedly connected to the cleaning block 7. The push block 6 and the cleaning block 7 are connected. The push block 6 is responsible for pushing the blank, while the cleaning block 7 is designed to clean impurities or waste from the surface of the blank during the unloading process, ensuring that the unloading process is not affected. The bottom of the cleaning block 7 connects to the inner top of the housing 1. A feeding block 8 is fixedly connected inside the housing 1. The function of the feeding block 8 is... The gear blank is fed to the pushing range of the feeding push rod 5, and its interior is provided with multiple through holes for separating waste and finished products. The bottom of the housing 1 is fixedly connected to the base 11, which provides stable support for the entire feeding mechanism. The waste box 10 is slidably connected inside the base 11. The waste box 10 and the finished product box 9, which are fixedly connected to the base 11 at the bottom, respectively store the waste and finished products during the feeding process. The finished product box 9 is slidably connected inside the base 11. The top of the finished product box 9 corresponds to the bottom of the feeding block 8. The feeding block 8 has multiple through holes inside. The top of the waste box 10 corresponds to the bottom of the multiple through holes. The cleaning block 7 is a triangular ramp, and collection blocks are provided on the left and right sides of the cleaning block 7.

[0029] Working principle: The upper mold 4, fixed to the drive end of the extrusion pusher 3, reciprocates up and down through the extrusion pusher 3. During this movement, the upper mold 4 cooperates with the lower mold 13 inside the housing 1 to extrude the gear blank placed on top inside the housing 1. The gear blank is compressed and slides downwards. During this sliding process, the ejector block 12, which is slidably connected to the lower mold 13, slides down. Then, the ejector block 12 drives multiple ejector shafts 18, which are fixed to the bottom of the ejector block 12, to slide. The first piston 17, fixed to the outside of the ejector shaft 18, slides along with the ejector shaft 18 and increases the air pressure inside the air pressure pipe 22. The compressed gas enters the air collection tank 20 through the vent pipe 19. The increase in gas increases the air pressure, which in turn compresses the second piston 21, which is slidably connected to the air collection tank 20, causing it to slide. During this sliding process, the second piston 21 compresses the return spring 23, which is fixed to the bottom of the second piston 21, causing the return spring 23 to accumulate elastic force. As the connecting rod 16 at the bottom of the first piston 17 slides along with the first piston 17, it squeezes the ejector spring 15, causing the ejector spring 15 and the return spring 23 to accumulate elastic force together. After the gear blank is extruded and formed, the extrusion push rod 3 drives the upper mold 4 to rise while releasing the extrusion of the gear blank. Then, the ejector spring 15 and the return spring 23 release the elastic force absorbed during the extrusion process. The return spring 23 pushes the second piston 21 to slide upward, and the ejector spring 15 pushes the connecting rod 16 to slide upward. The second piston 21 compresses the gas back into the air pressure pipe 22, thereby pushing the first piston 17, which is slidably connected inside the air pressure pipe 22, to slide upward. While the connecting rod 16 slides upward, it further ensures the stability of the first piston 17 during the upward sliding process. Finally, the first piston 17 drives the ejector shaft 18 and the ejector block 12 fixed on the top of the ejector shaft 18 to slide upward, and finally extrudes the gear blank into the lower mold 13. The above structure reduces the tediousness and resource consumption of manual material feeding during the reinforcement of the transmission gear blank, thereby improving the efficiency of gear blank processing.

[0030] When the gear blank is ejected by the ejection mechanism, the feeding push rod 5 fixed to the rear side of the housing 1 is activated, thereby causing the push block 6 fixed to the drive end of the feeding push rod 5 to slide. Then, the push block 6 drives the cleaning block 7 to slide. Through the slope design of the cleaning block 7 and the design that the bottom of the cleaning block 7 contacts the top inside the housing 1, the cleaning block 7 pushes the waste generated during the extrusion molding of the gear blank and the finished gear blank together to the feeding block 8 during the sliding process. With the help of multiple through holes opened inside the feeding block 8, the waste is separated from the finished gear blank. Finally, the waste is collected by the waste bin 10, thereby avoiding the use of the device due to lack of cleaning of waste, and also improving the utilization rate of materials of the device.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A blanking mechanism for machining gear blanks, comprising a housing, characterized in that: A protective block is fixedly connected to the top of the housing, a pressing push rod is fixedly connected inside the protective block, an upper mold is fixedly connected to the driving end of the pressing push rod, the upper mold is slidably connected to the outside of the housing, a lower mold is fixedly connected to the top inside the housing, an ejection mechanism is fixedly connected to the inside of the housing, and a feeding mechanism is fixedly connected to the rear inside the housing. The ejection mechanism includes an ejection block, which is slidably connected to the outside of the housing. Multiple ejection shafts are fixedly connected to the top of the ejection block. A pneumatic tube is slidably connected to the outside of each ejection shaft. A first piston is fixedly connected to the outside of the ejection shaft, and the outside of the first piston contacts the inner wall of the pneumatic tube. A connecting rod is fixedly connected to the bottom of the first piston, and an ejection spring is fixedly connected to the bottom of the connecting rod. A fixed shaft is fixedly connected to the bottom of the pneumatic tube. The outside of the connecting rod is slidably connected to the inside of the fixed shaft. The outside of the ejection spring is fixedly connected to the inside of the fixed shaft. A pneumatic auxiliary component is fixedly connected to the inside of the pneumatic tube.

2. The blanking mechanism for machining gear blanks according to claim 1, characterized in that: The feeding mechanism includes a feeding push rod, the front side of which is fixedly connected to the rear side of the housing. A push block is fixedly connected to the driving end of the feeding push rod. A cleaning block is fixedly connected to the front side of the push block. The bottom of the cleaning block contacts the inner top of the housing. A feeding block is fixedly connected to the inside of the housing. A base is fixedly connected to the bottom of the housing. A waste bin is slidably connected to the inside of the base. A finished product bin is slidably connected to the inside of the base. The top of the finished product bin corresponds to the bottom of the feeding block.

3. The blanking mechanism for machining gear blanks according to claim 1, characterized in that: The pneumatic auxiliary component includes multiple vent pipes. The outside of each vent pipe is fixedly connected to the inside of the pneumatic tube. The other end of each vent pipe is fixedly connected to an air collection tank. A second piston is slidably connected inside the air collection tank. A return spring is fixedly connected to the bottom of the second piston. The other end of the return spring is fixedly connected to the top of the air collection tank.

4. The blanking mechanism for machining gear blanks according to claim 3, characterized in that: The pneumatic tube has an internal cavity. The outside of the first piston is slidably connected to the inside of the cavity. The outside of the ejector shaft is slidably connected to the inside of the cavity. The outside of the connecting rod is slidably connected to the inside of the cavity. The outside of the vent pipe is in contact with the inner wall of the cavity.

5. The blanking mechanism for machining gear blanks according to claim 1, characterized in that: The fixed shaft has an internal mounting groove, the ejector spring is externally fixedly connected to the inside of the mounting groove, and the connecting rod is externally slidably connected to the inside of the mounting groove.

6. The blanking mechanism for machining gear blanks according to claim 3, characterized in that: The gas collecting tank has a pressure groove inside, the second piston is slidably connected to the inside of the pressure groove, and the outside of the vent pipe is in contact with the inner wall of the pressure groove.

7. The blanking mechanism for machining gear blanks according to claim 2, characterized in that: The feed block has multiple through holes inside, and the top of the waste bin corresponds to the bottom of the multiple through holes.

8. The blanking mechanism for machining gear blanks according to claim 2, characterized in that: The cleaning block is a triangular ramp, and collection blocks are provided on the left and right sides of the cleaning block.

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