Gear production mold

Abstract

The utility model discloses a gear production mould, which relates to the technical field of gear production and comprises a base, a support is connected to the middle of the top of the base, a supporting cylinder is fixed below the inside of the support, a turntable penetrates through the top of the supporting cylinder, a first sliding groove is formed in one side of the top of the turntable, and a second gear ring is fixed at the bottom of the turntable. A motor is installed on one side of the supporting cylinder. Through the arrangement of the rotating disc, the first sliding groove, the lower mold plate, the second sliding groove, the lower mold blocks and the first bolts, the space between the lower mold plate and the multiple lower mold blocks forms the lower mold cavity so that a first gear ring can be conveniently formed, and when discharging is needed, the output end of the motor drives the rotating disc to rotate through meshing of the first gear ring and the second gear ring; the turntable rotates to drive the first sliding groove to revolve, and the first sliding groove abuts against the first bolt to enable the first bolt to move; and a separated structure is adopted, so that blanking is facilitated, no frictional wear exists between the structure and the lower mold cavity, and the phenomenon that the size of the lower mold cavity is increased after long-time use is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gear production, in particular to a gear production mold. Background Technique

[0002] The first gear ring refers to a mechanical component with teeth on the rim that can continuously mesh to transmit motion and power, and is extremely widely used in mechanical transmission and the entire mechanical field. It is mainly processed by methods such as hobbing, milling, shaping, punching, planing, casting, grinding, and shaving. For plastic first gear rings, injection molding is also used. When using casting and injection molding methods to produce the first gear ring, a mold is required to determine the shape of the first gear ring for rough machining, and then the processing of the first gear ring is completed through processes such as grinding, polishing, and heat treatment.

[0003] A mold for gear production that is convenient for demolding, with the application number 202322956291.9, includes a demolding mechanism. An alignment mechanism is arranged outside the demolding mechanism. The demolding mechanism includes a base. A lower mold is installed on the top of the base. A first cylinder is installed inside the lower mold at the bottom of the jacking plate. A pushing mechanism is arranged on the top of the base. One end of the pushing mechanism is fixedly connected to a protective shell. A cold air pipe is arranged at one end of the protective shell. A cold air blower is arranged at one end of the cold air pipe. The pushing mechanism includes a support platform. One end of the support platform is fixedly connected to an electric push rod. This mold for gear production that is convenient for demolding makes it convenient to demold the mold through the demolding mechanism, so that the mold will not deform during demolding. Then, through the alignment mechanism, the displacement of the upper mold is avoided, and the accuracy between the upper mold and the lower mold is improved, thus completing the operations of convenient demolding and improved accuracy.

[0004] For the existing molds for gear production to facilitate blanking, most of them adopt the jacking scheme as described in the above technical solution. However, for the processing method of blanking using the jacking scheme, the jacking structure needs to be placed below the inside of the mold. After long-term use, due to sliding friction, the inner wall of the cavity is prone to wear, gradually increasing the gap between the jacking structure and the cavity. First, it is easy to cause an increase in the allowance after the gear is produced, and more time is needed to waste for grinding to remove the allowance. Second, it exacerbates the generation of flash. Even when the molten metal or molten plastic solidifies, it is easy to get stuck in the gap, increasing the running resistance and wear of the structure. Summary of the Utility Model

[0005] Based on this, the purpose of the present utility model is to provide a gear production mold to solve the technical problems mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A gear production mold, including a base, a bracket is connected to the middle of the top of the base, and a support cylinder is fixed below the interior of the bracket. A turntable passes through the top of the support cylinder, and a first chute is opened on one side of the top of the turntable. A second gear ring is fixed to the bottom of the turntable. A motor is installed on one side of the support cylinder, and a first gear ring is connected to the output end of the motor. Both sides of the top of the bracket are connected with a lower template, and a second chute and a lower module are respectively arranged on one side of the top of the lower template. A first bolt passes through the top of the lower module.

[0007] By adopting the above technical solution, the space between the lower template and multiple lower modules forms a lower mold cavity for the formation of the first gear ring. When blanking is required, the output end of the motor drives the turntable to rotate through the meshing of the first gear ring and the second gear ring. After the turntable rotates, it drives the first chute to revolve. By the first chute abutting against the first bolt, the first bolt is displaced. At the same time, due to the arrangement of the second chute, the first bolt is guided, so that the first bolt performs a horizontal linear displacement movement. After the first bolt translates, it drives the lower module to displace, so that multiple lower modules move away from each other from the gear, facilitating the removal of the gear to complete blanking.

[0008] Further, the first bolt is respectively slidably connected with the first chute and the second chute, and the first chute is arc-shaped.

[0009] By adopting the above technical solution, the first bolt is displaced by the first chute abutting against the first bolt. At the same time, due to the arrangement of the second chute, the first bolt is guided, so that the first bolt performs a horizontal linear displacement movement. After the first bolt translates, it drives the lower module to displace.

[0010] Further, the first gear ring meshes with the second gear ring, and the turntable is respectively rotatably connected with the bracket, the support cylinder and the lower template.

[0011] By adopting the above technical solution, the output end of the motor drives the turntable to rotate through the meshing of the first gear ring and the second gear ring. After the turntable rotates, it drives the first chute to revolve.

[0012] Further, the height of the lower module is greater than the height of the lower template, and the lower module abuts against the lower template.

[0013] By adopting the above technical solution, multiple lower modules move towards each other and fit with the lower template. At this time, the space between the lower template and multiple lower modules forms a lower mold cavity.

[0014] Further, both the lower module and the first bolt are provided with multiple, and multiple lower modules and first bolts are both distributed in an annular array.

[0015] By adopting the above technical solution, after multiple first bolts are translated, they drive multiple lower modules to displace, so that the multiple lower modules move away from the gear mutually, facilitating the removal of the gear to complete the blanking.

[0016] Furthermore, a top frame is fixed to the back of the base, and a hydraulic cylinder is installed on the top of the top frame. The output end of the hydraulic cylinder is connected to the upper die assembly. A lower die cavity is provided between the multiple lower modules and the lower template.

[0017] By adopting the above technical solution, after the hydraulic cylinder is started, the output end drives the upper die assembly to move downward, so that the upper die assembly fits with the tops of the lower modules. At this time, molten plastic or molten metal can be input into the lower die cavity from the upper die assembly. After the molten plastic or molten metal cools and solidifies into a gear, after the gear is formed, the staff turns off the hydraulic cylinder. After the hydraulic cylinder is turned off, the output end drives the upper die assembly to move upward, so that the upper die assembly is separated from the lower modules.

[0018] Furthermore, a second bolt is provided between the lower template and the bracket, and the lower template is detachably connected to the bracket through the second bolt.

[0019] By adopting the above technical solution, when the lower die is damaged or severely worn, the staff can remove the second bolt to end the limitation between the lower template and the bracket. After that, the staff can remove the lower template from the bracket to detach the turntable and the lower modules together.

[0020] Furthermore, the first bolt abuts against the lower module, and the lower module is detachably connected to the lower template.

[0021] By adopting the above technical solution, the staff removes the first bolt to end the limitation among the turntable, the lower template and the lower module. At this time, the staff can directly disassemble the turntable from the lower template, and the staff can detach the lower module from the lower template by sliding.

[0022] To sum up, the utility model mainly has the following beneficial effects:

[0023] 1. Through the settings of the turntable, the first chute, the lower template, the second chute, the lower module and the first bolt, the space between the lower template and the multiple lower modules forms a lower die cavity to facilitate the forming of the first gear ring. When blanking is needed, the output end of the motor drives the turntable to rotate through the meshing of the first gear ring and the second gear ring. After the turntable rotates, it drives the first chute to revolve. By the first chute abutting against the first bolt to displace the first bolt, and at the same time, due to the setting of the second chute to guide the first bolt, the first bolt makes a horizontal linear displacement movement. After the first bolt is translated, it drives the lower module to displace, so that the multiple lower modules move away from the gear mutually, facilitating the removal of the gear to complete the blanking; The separated structure is convenient for blanking, and there is no friction and wear between the structure and the lower die cavity, avoiding the phenomenon that the size of the lower die cavity increases after long-term use;

[0024] 2. By providing the first bolt and the second bolt in the present utility model, when the lower die is damaged or severely worn, the second bolt can be removed to end the limit between the lower template and the bracket. Then, the lower template can be removed from the bracket, and the turntable and the lower module can be removed together. After that, the first bolt is removed to end the limit between the turntable, the lower template, and the lower module. At this time, the turntable and the lower template can be directly disassembled, and the lower module can be removed from the lower template by sliding; the damaged part can be replaced separately, which is convenient for maintenance and reduces the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the present utility model;

[0026] Figure 2 is a structural schematic diagram of the lower module when the present utility model is closed;

[0027] Figure 3 is a structural schematic diagram of the lower module when the present utility model is opened;

[0028] Figure 4 is a sectional structural schematic diagram of the bracket of the present utility model;

[0029] Figure 5 is an exploded structural schematic diagram of the bracket of the present utility model.

[0030] In the figure: 1, base; 2, top frame; 3, hydraulic cylinder; 4, upper die assembly; 5, bracket; 6, support cylinder; 7, motor; 8, first toothed ring; 9, turntable; 10, first chute; 11, second toothed ring; 12, lower template; 13, second chute; 14, lower module; 15, first bolt; 16, second bolt; 17, lower die cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0032] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0033] Embodiment 1:

[0034] A gear production mold, as Figures 1 - 5As shown in the figure, it includes a base 1. In the middle of the top of the base 1, there is a bracket 5 connected. Below the inside of the bracket 5, there is a support cylinder 6 fixed. Through the top of the support cylinder 6, there is a turntable 9. The turntable 9 is rotatably connected to the bracket 5, the support cylinder 6 and the lower template 12 respectively. On one side of the top of the turntable 9, there is a first chute 10. The first chute 10 is arc-shaped. At the bottom of the turntable 9, there is a second gear ring 11 fixed. On one side of the support cylinder 6, there is a motor 7 installed. The output end of the motor 7 is connected with a first gear ring 8. The first gear ring 8 meshes with the second gear ring 11. After the motor 7 is started, the output end drives the turntable 9 to rotate through the meshing of the first gear ring 8 and the second gear ring 11; on both sides of the top of the bracket 5, there are lower templates 12 connected. On one side of the top of the lower template 12, there are a second chute 13 and a lower module 14 respectively. The height of the lower module 14 is greater than that of the lower template 12. The lower module 14 abuts against the lower template 12. Multiple lower modules 14 move towards each other and fit with the lower template 12. At this time, the space between the lower template 12 and the multiple lower modules 14 forms a lower mold cavity 17; the first bolts 15 are respectively slidably connected with the first chute 10 and the second chute 13. The first bolts 15 penetrate through the top of the lower module 14. There are multiple lower modules 14 and first bolts 15. The multiple lower modules 14 and first bolts 15 are both distributed in an annular array. Through the cooperation of the first chute 10 and the second chute 13, the first bolts 15 drive the lower module 14 to translate.

[0035] Referring to Figure 1 、 Figure 2 and Figure 4 , in the above embodiment, on the back of the base 1, there is a top frame 2 fixed. On the top of the top frame 2, there is a hydraulic cylinder 3 installed. The output end of the hydraulic cylinder 3 is connected with an upper die assembly 4. There is a lower mold cavity 17 between the multiple lower modules 14 and the lower template 12. After the hydraulic cylinder 3 is started, the output end drives the upper die assembly 4 to move downwards, so that the upper die assembly 4 fits with the top of the lower module 14. At this time, molten plastic or molten metal can be input into the lower mold cavity 17 from the upper die assembly 4. Wait for the molten plastic or molten metal to cool and solidify into a gear.

[0036] Embodiment Two:

[0037] On the basis of the above Embodiment One, for the convenience of replacing damaged structures, the following settings are made now.

[0038] Referring to Figures 2 - 5, in the above embodiments, a second bolt 16 is provided between the lower template 12 and the bracket 5. The lower template 12 is detachably connected to the bracket 5 through the second bolt 16. Removing the second bolt 16 ends the limitation between the lower template 12 and the bracket 5. After that, the staff can remove the lower template 12 from the bracket 5 to detach the turntable 9 and the lower module 14 together; the first bolt 15 abuts against the lower module 14, and the lower module 14 is detachably connected to the lower template 12. The staff removes the first bolt 15 to end the limitation between the turntable 9, the lower template 12 and the lower module 14. At this time, the staff can directly disassemble the turntable 9 from the lower template 12, and the staff can detach the lower module 14 from the lower template 12 by sliding.

[0039] The implementation principle of the present utility model is as follows: First, the staff starts the hydraulic cylinder 3 and the motor 7. After the motor 7 starts, the output end drives the turntable 9 to rotate through the meshing of the first gear ring 8 and the second gear ring 11. After the turntable 9 rotates, it drives the first sliding groove 10 to revolve. By the first sliding groove 10 abutting against the first bolt 15, the first bolt 15 is displaced. At the same time, due to the setting of the second sliding groove 13, the first bolt 15 is guided, so that the first bolt 15 performs a horizontal linear displacement movement. After the first bolt 15 is translated, it drives the lower module 14 to displace, so that a plurality of lower modules 14 move towards each other and fit with the lower template 12. At this time, the space between the lower template 12 and the plurality of lower modules 14 forms a lower mold cavity 17. After that, the motor 7 is turned off, and the output end of the hydraulic cylinder 3 starts to drive the upper mold assembly 4 to move downwards, so that the upper mold assembly 4 fits with the top of the lower module 14. At this time, molten plastic or molten metal can be input into the lower mold cavity 17 from the upper mold assembly 4, and wait for the molten plastic or molten metal to cool and solidify into a gear;

[0040] After the gear is formed, the staff turns off the hydraulic cylinder 3. After the hydraulic cylinder 3 is turned off, the output end drives the upper mold assembly 4 to move upwards, so that the upper mold assembly 4 is separated from the lower module 14. At this time, the staff turns on the motor 7 again. After the motor 7 starts, the output end drives the turntable 9 to reverse through the meshing of the first gear ring 8 and the second gear ring 11. By the cooperation of the first sliding groove 10 and the second sliding groove 13, the first bolt 15 drives the lower module 14 to translate, so that a plurality of lower modules 14 move away from the gear, facilitating the staff to take out the gear to complete the blanking;

[0041] When the lower mold is damaged or severely worn, the staff can remove the second bolt 16 to end the limitation between the lower template 12 and the bracket 5. After that, the staff can remove the lower template 12 from the bracket 5 to detach the turntable 9 and the lower module 14 together. Then the staff removes the first bolt 15 to end the limitation between the turntable 9, the lower template 12 and the lower module 14. At this time, the staff can directly disassemble the turntable 9 from the lower template 12, and the staff can detach the lower module 14 from the lower template 12 by sliding.

[0042] During installation, the staff first slide the lower module 14 into the lower template 12. Then, the staff fit the top of the turntable 9 with the bottom of the lower template 12. At this time, the staff can insert the first bolt 15 into the lower module 14, the first chute 10 and the second chute 13, so as to prevent the separation among the turntable 9, the lower template 12 and the lower module 14. After that, the staff place the lower template 12 on the top of the bracket 5. At the same time, the bottom of the turntable 9 is inserted into the inside of the support cylinder 6, and the second toothed ring 11 meshes with the first toothed ring 8. Finally, the staff insert the second bolt 16 into the bracket 5 and tighten it with the lower template 12, thus completing the installation work.

[0043] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A gear production mold, comprising a base (1), characterized in that: A bracket (5) is connected to the middle of the top of the base (1), and a support cylinder (6) is fixed to the lower part inside the bracket (5). A turntable (9) penetrates through the top of the support cylinder (6), and a first chute (10) is formed on one side of the top of the turntable (9). A second toothed ring (11) is fixed to the bottom of the turntable (9). A motor (7) is installed on one side of the support cylinder (6), and a first toothed ring (8) is connected to the output end of the motor (7). Lower templates (12) are connected to both sides of the top of the bracket (5), and a second chute (13) and a lower module (14) are respectively arranged on one side of the top of the lower template (12). A first bolt (15) penetrates through the top of the lower module (14).

2. The gear production mold according to claim 1, characterized in that: The first bolt (15) is slidably connected to the first chute (10) and the second chute (13) respectively, and the first chute (10) is arc-shaped.

3. The gear production mold according to claim 1, characterized in that: The first toothed ring (8) meshes with the second toothed ring (11), and the turntable (9) is rotatably connected to the bracket (5), the support cylinder (6) and the lower template (12) respectively.

4. The gear production mold according to claim 1, characterized in that: The height of the lower module (14) is greater than that of the lower template (12), and the lower module (14) abuts against the lower template (12).

5. The gear production mold according to claim 4, wherein: A plurality of the lower modules (14) and the first bolts (15) are provided, and the plurality of lower modules (14) and the first bolts (15) are both distributed in an annular array.

6. The gear production mold according to claim 5, characterized in that: A top frame (2) is fixed to the back of the base (1), and a hydraulic cylinder (3) is installed on the top of the top frame (2). An upper die assembly (4) is connected to the output end of the hydraulic cylinder (3). A lower die cavity (17) is arranged between the plurality of lower modules (14) and the lower template (12).

7. The gear production mold according to claim 1, characterized in that: A second bolt (16) is arranged between the lower template (12) and the bracket (5), and the lower template (12) is detachably connected to the bracket (5) through the second bolt (16).

8. The gear production mold according to claim 7, wherein: The first bolt (15) abuts against the lower module (14), and the lower module (14) is detachably connected to the lower template (12).

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