Injection mold for automobile air outlet pipe

Abstract

The utility model provides an injection mold for an automobile air outlet pipe, and belongs to the technical field of automobile parts. The injection mold for the automobile air outlet pipe comprises a top plate, an upper mold plate, an upper mold core, a transverse cavity inner column, an inclined cavity inner column, a lower mold core, a lower mold plate, a side plate and a bottom plate, a mounting inclined block is fixed to the bottom plate, an inclined air cylinder is fixed to the outer side of the mounting inclined block, and an inclined sliding block sliding along the inclined face of the mounting inclined block is fixed to the end of a telescopic rod of the inclined air cylinder; a lifting block is arranged on the lower die plate, a telescopic rod of a lifting air cylinder is connected with the lifting block and can push the lifting block to ascend and descend vertically, a sliding groove is formed in the upper end of the lifting block, a transverse sliding block sliding transversely is arranged in the sliding groove, the outer side of the transverse sliding block is connected with a telescopic rod of a transverse air cylinder, and the inner side of the transverse sliding block is fixed to the transverse cavity inner column. According to the injection mold for the automobile air outlet pipe, step-by-step core pulling is adopted, the special-shaped air outlet pipe with a complex structure can be rapidly discharged, and an air outlet pipe product can be safely and easily taken out without damaging the air outlet pipe.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology and relates to an injection mold for an automotive exhaust pipe. Background Technology

[0002] The exhaust pipe is a crucial component of a car's air intake and exhaust system. The air filter's exhaust pipe typically connects to the engine's intake manifold or the turbocharger's inlet. Specifically, the air filter's exhaust pipe guides filtered air to the engine's intake manifold, ensuring the engine receives clean air for combustion. In some models, the exhaust pipe may also connect to the turbocharger's inlet to provide compressed air to the turbocharger. However, the exhaust pipe's structure is relatively complex, making unloading difficult and increasing development costs. Therefore, a new injection mold for the exhaust pipe needs to be designed for easier unloading. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an injection mold for automotive exhaust pipes. Through step-by-step core pulling, complex and irregularly shaped exhaust pipes can be quickly unloaded.

[0004] The objective of this utility model can be achieved through the following technical solution: An injection mold for an automobile exhaust pipe includes a top plate, an upper template, an upper mold core, a transverse cavity pillar, an inclined cavity pillar, a lower mold core, a lower template, a side plate, and a bottom plate. The top plate, upper template, and upper mold core are fixed sequentially, and the lower mold core, lower template, side plate, and bottom plate are fixed sequentially. The upper mold core and lower mold core are fitted together, and a molding groove is formed on the mating surface of the upper and lower mold cores. An installation wedge is fixed on the bottom plate, and an inclined cylinder is fixed to the outside of the installation wedge. The end of the telescopic rod of the inclined cylinder is fixed along the installation... The inclined block has a sliding block that slides on its inclined surface. The inclined column in the inclined cavity is fixed to the inclined block and extends into the forming groove. The lower template is equipped with a lifting block. The lower end of the lower template is fixed with a lifting cylinder. The telescopic rod of the lifting cylinder is connected to the lifting block and can push the lifting block up and down. A transverse cylinder is fixed to the outside of the lifting block. The upper end of the lifting block has a sliding groove. A transverse sliding block is provided in the sliding groove. The outside of the transverse sliding block is connected to the telescopic rod of the transverse cylinder. The inside of the transverse sliding block is fixed to the transverse column in the cavity. The transverse column in the cavity extends into the forming groove and abuts against the inclined column in the cavity.

[0005] Furthermore, the mounting plate has raised guide posts, and the lower end of the lifting block has a guide groove into which the guide posts are inserted.

[0006] Furthermore, a connection port is fixed on the top plate, and a hot runner is opened in the upper template to connect the connection port with the forming groove.

[0007] Furthermore, a limit stop is fixed at the lower end of the upper template, and the outer side of the inclined slider has an inclined surface. When the upper template descends, the lower end of the limit stop abuts against the inclined surface of the inclined slider.

[0008] Furthermore, the outer side of the horizontal slider has a first inclined surface, and the lower end face of the upper template has a pressing surface. When the upper template descends, the pressing surface abuts against the first inclined surface of the horizontal slider.

[0009] Furthermore, several support columns are fixed on the base plate to abut against the lower template.

[0010] Furthermore, the front end of the inclined cavity column has a locking protrusion, and the front end of the transverse cavity column has a slot for inserting the locking protrusion.

[0011] First, the horizontal cylinder is driven to push the horizontal inner column into the forming groove. Then, the inclined cylinder is driven to push the inclined inner column into the forming groove and make it fit with the horizontal inner column. The locking protrusion is then locked into the slot. Then, the injection molding machine is started to close the mold. One end of the feed pipe is connected to the connection port. The extruder injects molten plastic into the hot runner through the feed pipe, and finally into the forming groove. After cooling and solidification, the material is unloaded. First, the upper and lower mold plates are separated. Then, the horizontal cylinder is driven to pull out the horizontal inner column. Finally, the lifting cylinder is driven to lift the lifting block. Since the horizontal inner column is not completely withdrawn from the air outlet pipe, it will cause the air outlet pipe product to move upward. At this time, the worker can pull out the air outlet pipe product horizontally to complete the unloading.

[0012] Compared with existing technologies, the injection mold for this automotive exhaust pipe has the following advantages:

[0013] 1. The step-by-step core extraction method allows for rapid unloading of complex, irregularly shaped vent pipes, ensuring safe and easy removal of the vent pipe product without damaging it.

[0014] 2. The short stroke of the transverse cylinder reduces the space occupied by the entire mold. The transverse inner column only needs to be pulled back a short distance to allow the transverse inner column and the air outlet pipe to slide flexibly. After the lifting block lifts the entire product upward, the air outlet pipe product is pulled out from the transverse inner column.

[0015] 3. The inclined cylinder needs to be completely pulled out of the air outlet pipe before the material can be unloaded. Because the inclined cylinder is set at an angle, the required operating space of the mold is reduced, and no extra space is occupied for the inclined cylinder to move. Attached Figure Description

[0016] Figure 1 This is a 3D view of the injection mold for the car's exhaust pipe.

[0017] Figure 2 This is a cross-sectional view of the injection mold for the exhaust pipe of this automobile.

[0018] Figure 3 This is a product image of the vent pipe.

[0019] Figure 4 This is a structural diagram of the template.

[0020] In the diagram, 1. Top plate; 2. Upper template; 3. Upper mold core; 4. Horizontal cavity pillar; 5. Angled cavity pillar; 6. Lower mold core; 7. Lower template; 8. Side plate; 9. Base plate; 10. Mounting inclined block; 11. Angled cylinder; 12. Angled slider; 13. Lifting block; 14. Lifting cylinder; 15. Horizontal cylinder; 16. Slide groove; 17. Horizontal slider; 18. Guide pillar; 19. Connection port; 20. Hot runner; 21. Limiting stop pillar; 22. First inclined surface; 23. Support column; 24. Engraving protrusion; 25. Air outlet pipe. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figure 3 The air filter outlet pipe 25 shown has interfaces at both ends and an installation port in the middle. The outlet pipe 25 guides the filtered air to the engine's intake manifold.

[0023] like Figure 1 , Figure 2 As shown, the injection mold for the automobile exhaust pipe includes a top plate 1, an upper template 2, an upper mold core 3, a transverse cavity pillar 4, an inclined cavity pillar 5, a lower mold core 6, a lower template 7, a side plate 8, and a bottom plate 9. The top plate 1, upper template 2, and upper mold core 3 are fixed in sequence, as are the lower mold core 6, lower template 7, side plate 8, and bottom plate 9. The upper mold core 3 and lower mold core 6 are fitted together, and a molding groove is formed on the mating surface of the upper mold core 3 and lower mold core 6. An inclined block 10 is fixed on the bottom plate 9, and an inclined cylinder 11 is fixed to the outside of the inclined block 10. An inclined slider 12 that slides along the inclined surface of the inclined block 10 is fixed to the end of the telescopic rod of the inclined cylinder 11. The inclined cavity pillar 5 is fixed to the inclined slider 12, and the inclined cavity pillar 5 extends into the molding groove.

[0024] like Figure 4 As shown, a lifting block 13 is provided on the lower template 7, and a lifting cylinder 14 is fixed at the lower end of the lower template 7. The telescopic rod of the lifting cylinder 14 is connected to the lifting block 13 and can push the lifting block 13 up and down. A transverse cylinder 15 is fixed on the outside of the lifting block 13. A sliding groove 16 is opened at the upper end of the lifting block 13. A transverse sliding block 17 is provided in the sliding groove 16. The outside of the transverse sliding block 17 is connected to the telescopic rod of the transverse cylinder 15. The inside of the transverse sliding block 17 is fixed to the transverse cavity column 4. The transverse cavity column 4 extends into the forming groove and abuts against the inclined cavity column 5.

[0025] The mounting plate has raised guide posts 18, and the lower end of the lifting block 13 has a guide groove into which the guide posts 18 are inserted. A connection port 19 is fixed on the top plate 1, and a hot runner 20 is opened in the upper template 2 to connect the connection port 19 with the forming groove.

[0026] The lower end of the upper template 2 is fixed with a limit stop 21, and the outer side of the inclined slider 12 has an inclined surface. When the upper template 2 descends, the lower end of the limit stop 21 abuts against the inclined surface of the inclined slider 12. The outer side of the horizontal slider 17 has a first inclined surface 22, and the lower end face of the upper template 2 has a pressing surface. When the upper template 2 descends, the pressing surface abuts against the first inclined surface 22 of the inclined slider 12.

[0027] Several support columns 23 are fixed on the base plate 9, which abut against the lower template 7. The front end of the inclined cavity column 5 has a locking protrusion 24, and the front end of the transverse cavity column 4 has a slot for inserting the locking protrusion 24.

[0028] Workflow: First, drive the horizontal cylinder 15 to push the horizontal inner column 4 into the molding groove. Then, drive the inclined cylinder 11 to push the inclined inner column 5 into the molding groove and make it fit with the horizontal inner column 4. The locking protrusion 24 is locked into the slot. Then, start the injection molding machine to close the mold. One end of the feed pipe is connected to the connection port 19. The extruder injects molten plastic into the hot runner 20 through the feed pipe. Finally, it enters the molding groove and is unloaded after cooling and solidification. First, separate the upper mold plate 2 and the lower mold plate 7. Then, drive the horizontal cylinder 15 to pull out the horizontal inner column 4. Finally, drive the lifting cylinder 14 to lift the lifting block 13. Since the horizontal inner column 4 has not completely withdrawn from the air outlet pipe 25, it will cause the product in the air outlet pipe 25 to move upward. At this time, the worker can pull out the product in the air outlet pipe 25 horizontally to complete the unloading.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An injection mold for an automobile air outlet pipe, comprising a top plate, an upper mold plate, an upper mold core, a horizontal cavity post, an oblique cavity post, a lower mold core, a lower mold plate, a side plate, and a bottom plate, characterized in that, The top plate, the upper mold plate and the upper mold core are fixed in sequence, the lower mold core, the lower mold plate, the side plate and the bottom plate are fixed in sequence, the upper mold core is attached to the lower mold core, a forming groove is opened on the attached surface of the upper mold core and the lower mold core, the mounting inclined block is fixed on the bottom plate, the inclined cylinder is fixed outside the mounting inclined block, the oblique sliding block which slides along the inclined surface of the mounting inclined block is fixed on the end of the extension rod of the inclined cylinder, the inclined inner column is fixed on the oblique sliding block, the inclined inner column extends into the forming groove, the lifting block is arranged on the lower mold plate, the lifting cylinder is fixed on the lower end of the lower mold plate, the extension rod of the lifting cylinder is connected with the lifting block and can push the lifting block to ascend and descend, the transverse cylinder is fixed outside the lifting block, the sliding groove is opened on the upper end of the lifting block, the transverse sliding block is arranged in the sliding groove, the extension rod of the transverse cylinder is connected with the outer side of the transverse sliding block, the inner side of the transverse sliding block is fixed with the transverse inner column, the transverse inner column extends into the forming groove and abuts against the inclined inner column.

2. The injection mold for an automobile air outlet pipe according to claim 1, wherein The guide column is arranged on the mounting plate, the guide groove is opened on the lower end of the lifting block, and the guide column is inserted into the guide groove.

3. The injection mold for an automobile air outlet pipe according to claim 1, wherein The connecting port is fixed on the top plate, the hot runner which communicates the connecting port with the forming groove is opened in the upper mold plate.

4. The injection mold for an automobile air outlet pipe according to claim 2, wherein The lower end of the limiting block is fixed on the lower end of the upper mold plate, the inclined surface is arranged outside the oblique sliding block, and the lower end of the limiting block abuts against the inclined surface of the oblique sliding block when the upper mold plate descends.

5. The injection mold for an automotive air outlet pipe according to claim 4, wherein The first inclined surface is arranged outside the transverse sliding block, the extruding surface is arranged on the lower end surface of the upper mold plate, and the extruding surface abuts against the first inclined surface of the oblique sliding block when the upper mold plate descends.

6. The injection mold for an automotive air outlet pipe according to claim 5, wherein The supporting columns which abut against the lower mold plate are fixed on the bottom plate.

7. The injection mold for an automotive air outlet pipe according to claim 6, wherein The front end of the inclined inner column is provided with the clamping convex head, and the front end of the transverse inner column is provided with the clamping groove for inserting the clamping convex head.

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