Gear mold with automatic ejection structure

Abstract

The utility model relates to gear mould technical field, and disclose gear mould with automatic ejection structure, including work table, still include the PLC controller of fixed connection in the one side of work table, the support frame of fixed connection in the top of work table, set up the cooling assembly of work table top, the lower mould of fixed connection in the top of work table, the trapezoidal block of sliding connection in the inside of work table, the ejector rod of sliding connection in the inside of lower mould, the base of fixed connection in the bottom of ejector rod, the rotary roller of rotary connection in the inside of base, the top material block of fixed connection in the top of ejector rod, the spring of fixed connection between base and lower mould. Through the surface of rotary roller and trapezoidal block contact, make it drive ejector rod inside lower mould sliding, make it through top material block the gear of lower mould inner cavity cooling completes and ejects the inner cavity of lower mould, improves the production efficiency of gear, makes it improve the production precision and quality of gear, makes it improve the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of gear mold technology, and in particular to a gear mold with an automatic ejection structure. Background Technology

[0002] Gear molds are specialized tools used to manufacture gears. Through molding processes such as injection molding, die casting, forging, or powder metallurgy, molten materials (such as plastics and metals) are processed into gears with specific tooth shapes and sizes. Gear molds, through precise cavity design, inject or press materials into the mold cavity, and after cooling, solidification, or forging, gears are formed.

[0003] In existing technologies, after the gear molding process is completed, manual operation is required to remove the finished product from the mold cavity. This not only reduces the production efficiency of gears, but also makes it difficult to ensure that the standard is completely consistent every time due to manual operation. When removing the gear, even slight carelessness may cause the gear to deform, turning its originally regular shape into a distorted shape, affecting its normal assembly and use, or causing scratches on the gear surface, damaging the surface smoothness, affecting not only the appearance, but also reducing the wear resistance and service life of the gear. These operational errors will directly lead to deviations in product dimensional accuracy and make it difficult to guarantee the consistency of tooth shape, resulting in inconsistent quality of the produced gears. Therefore, it is necessary to improve the gear mold with an automatic ejection structure to solve the above problems. Utility Model Content

[0004] To overcome the problem that relying on manual operation to remove finished products from the mold cavity not only reduces the production efficiency of gears, but also causes deviations in product dimensional accuracy and makes it difficult to guarantee tooth profile consistency.

[0005] The technical solution of this utility model is as follows: a gear mold with an automatic ejection structure, including a worktable, a PLC controller fixedly connected to one side of the worktable, a support frame fixedly connected to the top of the worktable, a cooling component set on the top of the worktable, a lower mold fixedly connected to the top of the worktable, a trapezoidal block slidably connected inside the worktable, a push rod slidably connected inside the lower mold, a base fixedly connected to the bottom of the push rod, a rotating roller rotatably connected inside the base, a push block fixedly connected to the top of the push rod, and a spring fixedly connected between the base and the lower mold. The push block is set inside the lower mold, and the mold inside the lower mold is cooled by the cooling component.

[0006] Preferably, the lower mold has a matching circular groove at the corresponding position of the ejector block, and the ejector block is set in the circular groove of the lower mold.

[0007] Preferably, the lower mold has a matching through groove at the corresponding position of the ejector pin, and the ejector pin slides within the through groove of the lower mold.

[0008] Preferably, the worktable has a matching groove at the corresponding position of the trapezoidal block, and the trapezoidal block slides in the groove of the worktable.

[0009] Preferably, a second hydraulic telescopic rod is fixedly connected to the top of the workbench, a trapezoidal block is fixedly connected to the telescopic end of the second hydraulic telescopic rod, the second hydraulic telescopic rod is electrically connected to the PLC controller, a first hydraulic telescopic rod is fixedly connected inside the support frame, the first hydraulic telescopic rod is electrically connected to the PLC controller, an upper mold is fixedly connected to the telescopic end of the first hydraulic telescopic rod, and a feed port is opened inside the lower mold.

[0010] Preferably, the lower mold has an internal cavity with six sets of inlets, and the six sets of inlets are distributed in the corresponding positions of the six sets of internal cavities.

[0011] Preferably, the cooling assembly includes a water tank fixedly connected to the top of the workbench, a water pump fixedly connected to the top of the workbench, an annular cooling pipe fixedly connected between the water tank and the water pump, a water inlet pipe fixedly connected between the water tank and the water pump, a heat sink fixedly connected to the top of the workbench, a fixed frame fixedly connected to the support frame, a smooth rod rotatably connected inside the fixed frame, a circular gear fixedly connected to the smooth rod, a cooling fan fixedly connected to the bottom of the smooth rod, a toothed plate slidably connected inside the fixed frame, and a third hydraulic telescopic rod fixedly connected to the top of the fixed frame. The annular cooling pipe is located on top of the heat sink, the circular gear meshes with the outside of the toothed plate, the toothed plate is fixedly connected to the telescopic end of the third hydraulic telescopic rod, and the cooling fan blows air to cool the annular cooling pipe and the heat sink.

[0012] Preferably, the fixing frame has a matching groove at the corresponding position of the toothed plate, and the toothed plate slides in the groove of the fixing frame.

[0013] The beneficial effects of this utility model are:

[0014] 1. By having the rotating roller contact the surface of the trapezoidal block, it drives the ejector rod to slide inside the lower mold, thus ejecting the gear that has been cooled inside the lower mold cavity through the ejector block. This improves the production efficiency of the gear, enhances the production accuracy and quality of the gear, and increases the practicality of the device.

[0015] 2. The heat of the lower mold is transferred to the heat sink through the annular cooling pipe, and then the cooling fan rotates back and forth to increase the airflow range of the cooling fan, so that the cooling fan can dissipate heat from the heat sink and cool down the gear after it is formed in the inner cavity of the lower mold, thereby reducing the cooling waiting time of the gear. At the same time, the cooling water in the annular cooling pipe returns to the inside of the water tank, thus improving its practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of the gear mold with an automatic ejection structure according to the present invention;

[0017] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the trapezoidal block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the top material block structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cooling component structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the cooling fan structure of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Workbench; 21. First hydraulic telescopic rod; 22. Upper mold; 23. Lower mold; 24. Feed inlet; 25. Second hydraulic telescopic rod; 26. Trapezoidal block; 27. Push rod; 28. Base; 29. ​​Rotating roller; 210. Push block; 211. Spring; 31. Water tank; 32. Water pump; 33. Annular cooling pipe; 34. Heat sink; 35. Water inlet pipe; 36. Fixing frame; 37. Smooth rod; 38. Circular gear; 39. Third hydraulic telescopic rod; 310. Gear plate; 311. Cooling fan; 4. Support frame; 5. PLC controller. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1 - Figure 6This utility model provides an embodiment of a gear mold with an automatic ejection structure, including a worktable 1, a PLC controller 5 fixedly connected to one side of the worktable 1, a support frame 4 fixedly connected to the top of the worktable 1, a cooling assembly disposed on the top of the worktable 1, a lower mold 23 fixedly connected to the top of the worktable 1, a trapezoidal block 26 slidably connected inside the worktable 1, an ejector rod 27 slidably connected inside the lower mold 23, a base 28 fixedly connected to the bottom of the ejector rod 27, a rotating roller 29 rotatably connected inside the base 28, an ejector block 210 fixedly connected to the top of the ejector rod 27, and a spring 211 fixedly connected between the base 28 and the lower mold 23. The ejector block 210 is disposed inside the lower mold 23. The cooling assembly cools the mold inside the lower mold 23, and the rotating roller cools the mold inside the lower mold 23. 29 contacts the surface of trapezoidal block 26, causing it to drive ejector rod 27 to slide inside lower mold 23. This allows ejector block 210 to push the cooled gear out of lower mold 23, improving gear production efficiency, precision, and quality, and enhancing the device's practicality. The cooling assembly transfers heat from lower mold 23 to heat sink 34 via annular cooling pipe 33, and then the cooling fan 311 reciprocates, increasing its airflow range. This allows the cooling fan 311 to blow air onto heat sink 34, cooling the gear formed inside lower mold 23 and reducing cooling time. Simultaneously, the cooling water in annular cooling pipe 33 returns to the water tank 31, further enhancing practicality.

[0025] Please see Figure 1 - Figure 4In this embodiment, the lower mold 23 has a matching circular groove at the corresponding position of the ejector block 210. The ejector block 210 is placed in the circular groove of the lower mold 23, so that it can be easily stored when the gear is ejected and reset, thereby improving the stability of the gear ejection. The lower mold 23 has a matching through groove at the corresponding position of the ejector rod 27. The ejector rod 27 slides in the through groove of the lower mold 23, thereby improving the sliding stability of the ejector block 210 and improving the efficiency of the gear ejection. The worktable 1 has a matching groove at the corresponding position of the trapezoidal block 26. The trapezoidal block 26 slides in the groove of the worktable 1, thereby improving the sliding stability of the trapezoidal block 26 and improving the ejection stability of the gear. A second hydraulic telescopic rod 25 is fixedly connected to the top of the worktable 1, and the trapezoidal block 26 is fixedly connected to the telescopic end of the second hydraulic telescopic rod 25. The second hydraulic telescopic rod 25 is electrically connected to the PLC controller 5. The first hydraulic telescopic rod 21 is fixedly connected inside the support frame 4. The telescopic end of the first hydraulic telescopic rod 21 is fixedly connected to the upper mold 22. The lower mold 23 has a feed port 24 inside. The rotating roller 29 contacts the surface of the trapezoidal block 26, causing the push rod 27 to slide inside the lower mold 23. The push rod 27 pushes the gear that has been cooled inside the lower mold 23 out of the lower mold 23 through the push block 210, thereby improving the production efficiency of the gear. The lower mold 23 has an inner cavity with six sets of feed ports 24. The six sets of feed ports 24 are distributed in the corresponding positions of the six sets of inner cavities, so that the gear can easily enter the inner cavity of the lower mold 23 through the feed ports 24, thereby improving the production efficiency of the gear.

[0026] Please see Figure 5 - Figure 6In this embodiment, the cooling assembly includes a water tank 31 fixedly connected to the top of the workbench 1, a water pump 32 fixedly connected to the top of the workbench 1, an annular cooling pipe 33 fixedly connected between the water tank 31 and the water pump 32, a water inlet pipe 35 fixedly connected between the water tank 31 and the water pump 32, a heat sink 34 fixedly connected to the top of the workbench 1, a fixed frame 36 fixedly connected to the support frame 4, a rotatable rod 37 rotatably connected inside the fixed frame 36, a circular gear 38 fixedly connected to the rotatable rod 37, a cooling fan 311 fixedly connected to the bottom of the rotatable rod 37, a toothed plate 310 slidably connected inside the fixed frame 36, and a third hydraulic telescopic rod 39 fixedly connected to the top of the fixed frame 36. The annular cooling pipe 33 is located on top of the heat sink 34, the circular gear 38 meshes with the outside of the toothed plate 310, and the toothed plate 310 is fixedly connected to the telescopic end of the third hydraulic telescopic rod 39. The hot air fan 311 blows air onto the annular cooling pipe 33 and the heat sink 34 to dissipate heat. The heat from the lower mold 23 is transferred to the heat sink 34 through the annular cooling pipe 33. The reciprocating rotation of the hot air fan 311 increases the airflow range of the hot air fan 311, allowing it to dissipate heat from the heat sink 34 and cool the gear formed inside the lower mold 23, reducing the cooling waiting time of the gear. At the same time, the cooling water in the annular cooling pipe 33 returns to the inside of the water storage tank 31, improving its practicality. The fixing bracket 36 has a matching groove at the corresponding position of the tooth plate 310. The tooth plate 310 slides in the groove of the fixing bracket 36, which limits the tooth plate 310, improves the reciprocating rotation stability of the hot air fan 311, increases the airflow range of the hot air fan 311, and improves the cooling of the gear inside the lower mold 23.

[0027] During operation, material is fed into the inner cavity of the lower mold 23 through the feed port 24. Then, the PLC controller 5 controls the first hydraulic telescopic rod 21 to extend downward, causing the upper mold 22 to move closer to the lower mold 23. The upper mold 22 and lower mold 23 then engage. At this time, the water pump 32 is activated, drawing cooling water from the water tank 31 through the annular cooling pipe 33. This annular cooling pipe 33 brings the lower mold 23 into contact with the heat sink 34, transferring heat from the lower mold 23 to the heat sink 34. The motor on the cooling fan 311 is then activated, and the third hydraulic telescopic rod 39 extends and retracts, meshing with the gear plate 310 and the circular gear 38. This causes the cooling fan 311 to reciprocate, increasing its airflow range and cooling the heat sink 34. This cooling process also cools the gear formed in the inner cavity of the lower mold 23, reducing the need for gear cooling. During the waiting time, the cooling water in the annular cooling pipe 33 returns to the interior of the water storage tank 31 to improve its practicality. After the gear is formed, the first hydraulic telescopic rod 21 is retracted by the PLC controller 5, and the second hydraulic telescopic rod 25 is extended by the PLC controller 5. The working principle of the PLC controller 5, the first hydraulic telescopic rod 21 and the second hydraulic telescopic rod 25 are common technical means in this field, so they will not be described in detail. The first hydraulic telescopic rod 21 and the second hydraulic telescopic rod 25 slide inside the worktable 1. The rotating roller 29 contacts the surface of the trapezoidal block 26, which drives the ejector rod 27 to slide inside the lower mold 23. The ejector block 210 ejects the gear that has been cooled inside the lower mold 23. The spring 211 keeps the rotating roller 29 in contact with the surface of the trapezoidal block 26. After ejection, the second hydraulic telescopic rod 25 resets, which drives the ejector block 210 to be stored in the matching circular groove of the lower mold 23, so that the formed gear can be easily demolded and removed.

[0028] Through the above steps, the rotating roller 29 contacts the surface of the trapezoidal block 26, causing it to drive the ejector rod 27 to slide inside the lower mold 23. This allows the ejector block 210 to push the gear, which has been cooled and is now ejected from the lower mold 23, making it easier to demold and remove the formed gear. This improves the production efficiency of gears and solves the problem that relying on manual operation to remove the finished product from the mold cavity not only reduces the production efficiency of gears but also causes deviations in product dimensional accuracy and makes it difficult to guarantee the consistency of tooth shape.

Claims

1. A gear mold with an automatic ejection structure, comprising a worktable (1), characterized in that: It also includes a PLC controller (5) fixedly connected to one side of the workbench (1), a support frame (4) fixedly connected to the top of the workbench (1), a cooling assembly set on the top of the workbench (1), a lower mold (23) fixedly connected to the top of the workbench (1), a trapezoidal block (26) slidably connected inside the workbench (1), a push rod (27) slidably connected inside the lower mold (23), a base (28) fixedly connected to the bottom of the push rod (27), a rotating roller (29) rotatably connected inside the base (28), a top material block (210) fixedly connected to the top of the push rod (27), and a spring (211) fixedly connected between the base (28) and the lower mold (23). The top material block (210) is set inside the lower mold (23), and the mold inside the lower mold (23) is cooled by the cooling assembly.

2. The gear mold with an automatic ejection structure according to claim 1, characterized in that: The lower mold (23) has a matching circular groove at the corresponding position of the top material block (210), and the top material block (210) is set in the circular groove of the lower mold (23).

3. The gear mold with an automatic ejection structure according to claim 1, characterized in that: The lower mold (23) has a corresponding through groove at the corresponding position of the ejector pin (27), and the ejector pin (27) slides in the through groove of the lower mold (23).

4. The gear mold with an automatic ejection structure according to claim 1, characterized in that: The workbench (1) has a matching groove at the corresponding position of the trapezoidal block (26), and the trapezoidal block (26) slides in the groove of the workbench (1).

5. The gear mold with an automatic ejection structure according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a second hydraulic telescopic rod (25), and a trapezoidal block (26) is fixedly connected to the telescopic end of the second hydraulic telescopic rod (25). The second hydraulic telescopic rod (25) is electrically connected to the PLC controller (5). The support frame (4) is fixedly connected to a first hydraulic telescopic rod (21), which is electrically connected to the PLC controller (5). The telescopic end of the first hydraulic telescopic rod (21) is fixedly connected to an upper mold (22), and a feed port (24) is opened inside the lower mold (23).

6. The gear mold with an automatic ejection structure according to claim 5, characterized in that: The lower mold (23) has an inner cavity with six sets of inlets and six sets of feed ports (24). The six sets of feed ports (24) are distributed in the corresponding positions of the six sets of inner cavities.

7. The gear mold with an automatic ejection structure according to claim 1, characterized in that: The cooling assembly includes a water tank (31) fixedly connected to the top of the workbench (1), a water pump (32) fixedly connected to the top of the workbench (1), an annular cooling pipe (33) fixedly connected between the water tank (31) and the water pump (32), a water inlet pipe (35) fixedly connected between the water tank (31) and the water pump (32), a heat sink (34) fixedly connected to the top of the workbench (1), a fixed frame (36) fixedly connected to the support frame (4), a smooth rod (37) rotatably connected inside the fixed frame (36), and a circular ring fixedly connected to the smooth rod (37). The annular cooling pipe (33) is set on the top of the heat sink (34). The circular gear (38) meshes with the outside of the toothed plate (310). The toothed plate (310) is fixedly connected to the telescopic end of the third hydraulic telescopic rod (39). The annular cooling pipe (33) is set on the top of the heat sink (34). The circular gear (38) meshes with the outside of the toothed plate (310). The toothed plate (310) is fixedly connected to the telescopic end of the third hydraulic telescopic rod (39). The cooling fan (311) blows air to cool the annular cooling pipe (33) and the heat sink (34).

8. The gear mold with an automatic ejection structure according to claim 7, characterized in that: The fixing frame (36) has a matching groove at the corresponding position of the toothed plate (310), and the toothed plate (310) slides in the groove of the fixing frame (36).

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