Injection exchange mold for new energy automobile air conditioner shell

Abstract

The application discloses a kind of injection exchange mould for new energy automobile air conditioner shell, belong to air conditioner mould technical field, including upper die plate, upper insert, lower die plate, lower insert, the downside of upper die plate forms the first recess for installing upper insert, the upside of lower die plate forms the second recess for installing lower insert, upper insert and lower insert are combined to form injection molding cavity between;The lower part of lower insert is formed with boss, the outside of boss is formed with annular clamping groove, the inside of lower die plate is installed with limit cover, the inside of limit cover is formed with third recess for cooperating with boss, limit cover is uniformly spaced apart with inclined channel around, first ball is installed with rolling in inclined channel;The outside of limit cover is rotatably provided with rotary drum, the inside of rotary drum is uniformly spaced apart with wedge-shaped slot around, wedge-shaped slot and first ball one-to-one correspond.The present application can improve the exchange efficiency of injection mould by realizing the quick disassembly of insert.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning mold technology, specifically relating to an interchangeable injection mold for air conditioning housings in new energy vehicles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the manufacturing requirements for automotive air conditioning systems, a key component affecting passenger comfort, are increasingly stringent. As a crucial structural component of the air conditioning system, the air conditioning housing in new energy vehicles not only needs to meet basic requirements such as lightweight, high strength, and weather resistance, but also needs to adapt to the special layout and heat dissipation needs of the motor and electronic control systems. Currently, injection molding has become the mainstream technology for air conditioning housing manufacturing due to its high efficiency, controllable cost, and suitability for mass production of complex structural components. In the design of injection molds, to adapt to the needs of air conditioning housings of different vehicle models or functions, interchangeable mold structures are often adopted, achieving diversified product production by replacing inserts in the mold. In existing technologies, interchangeable molds typically employ a standardized mold base combined with replaceable inserts. Inserts are mostly fixed in the mold cavity by bolts, pins, or pressure plates. This design theoretically allows for rapid switching of production tasks, improving mold versatility and equipment utilization. However, in practical applications, the existing interchangeable mold insert fixing methods are still mainly based on traditional mechanical connections. The installation and positioning process relies on manual operation and requires multiple tightening and calibration using tools. Most designs still have problems such as cumbersome operation and insufficient repeatability positioning accuracy, which leads to decreased production efficiency and increased labor costs. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an interchangeable injection mold for air conditioning housings of new energy vehicles, which can improve the interchangeability efficiency of injection molds by realizing the quick disassembly of inserts.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention discloses an interchangeable injection mold for an air conditioning housing in a new energy vehicle, comprising an upper mold plate, an upper insert, a lower mold plate, and a lower insert. A first groove for mounting the upper insert is formed on the lower side of the upper mold plate, and a second groove for mounting the lower insert is formed on the upper side of the lower mold plate. The upper and lower inserts are combined to form an injection molding cavity. A boss is formed at the lower part of the lower insert, and an annular groove is formed on the outer side of the boss. A limiting cover is installed on the inner side of the lower mold plate, and a third groove for engaging with the boss is formed on the inner side of the limiting cover. Inclined channels are evenly spaced around the circumference of the limiting cover, and first balls are rotatably mounted within these channels. A rotating cylinder is rotatably mounted on the outer side of the limiting cover, and wedge-shaped grooves are evenly spaced around the circumference of the inner side of the rotating cylinder. Each wedge-shaped groove corresponds to a first ball. A protrusion for circumferentially limiting the first ball is formed between adjacent wedge-shaped grooves. The protrusion extends radially. When the rotating cylinder rotates, the wedge-shaped grooves drive the first balls to move radially, allowing the first balls to engage with or disengage from the grooves.

[0006] Furthermore, the slot includes a horizontal plane, a vertical plane, and an inclined plane. The horizontal plane is located on the upper side of the slot, and the inclined plane is located on the lower side of the slot and extends downward toward the outside of the boss. The axis of the inclined channel extends downward toward the outside of the limiting cover.

[0007] Furthermore, an elastic support device is installed between the boss and the limiting cover. The elastic support device includes a first spring and a support plate. The lower end of the first spring is fixedly installed at the bottom of the third groove, and the upper end of the first spring is fixedly connected to the support plate. The support plate is in contact with the bottom of the boss.

[0008] Furthermore, a gear ring is coaxially mounted on the outer side of the rotating drum. The gear ring meshes with a gear, which is connected to a motor. The motor and the gear are installed in an installation groove opened on the inner side of the lower template.

[0009] Furthermore, the rotating drum is provided with vertical channels that are evenly spaced along its circumference and penetrate its axial direction. A second ball and a third ball are slidably arranged from top to bottom in the vertical channels. The diameters of the second and third balls correspond to the vertical channels. A second spring connects the second and third balls. The upper surface of the second ball abuts against the step of the boss. A lifting control component is installed on the lower side of the third ball. A support platform is installed on the inner side of the rotating drum. A limiting groove is opened on the support platform to limit the third ball, which corresponds to the vertical channels. The lifting control component is installed at the bottom of the limiting groove.

[0010] Furthermore, a first sliding hole is provided at the bottom of the limiting groove, and a hydraulic channel and a second sliding hole are provided inside the lower template. The hydraulic channel is filled with hydraulic oil. The second slider is opened on the end face of the lower template. The first sliding hole is connected to the second sliding hole through the hydraulic channel. The lifting control component includes a T-shaped slider, a third spring, and a sliding column. The T-shaped slider and the sliding column are respectively slidably sealed with the first sliding hole and the second sliding hole. The two ends of the third spring are respectively connected to the bottom of the sliding column and the second sliding hole.

[0011] Furthermore, the bottom of the lower template is detachably connected to a cover, which is used to support the support platform.

[0012] Furthermore, a magnetic block is mounted on the top of the upper insert, and an electromagnet corresponding to the magnetic block is mounted in the first groove. The electromagnet is connected to the controller.

[0013] Furthermore, the electromagnet is installed in the groove opened inside the first groove, and a thermal expansion block is fixedly connected to the top of the electromagnet. The thermal expansion block is installed in the mounting hole opened inside the upper template, and the upper end of the thermal expansion block is fixed inside the upper template by a connector.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention discloses an interchangeable injection mold for air conditioning housings in new energy vehicles. By setting detachable upper and lower inserts, when it is necessary to change the injection molding model of the air conditioning housing, the upper and lower inserts can be directly disassembled and replaced. By setting a boss at the lower part of the lower insert, which corresponds to the first ball, the lower insert can be quickly removed and fixed, thereby greatly improving the interchangeability efficiency of the injection mold and saving labor costs. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0017] Figure 1 This is a cross-sectional view of the interchangeable mold of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0020] Figure 4 This is a schematic diagram showing the fit between the limiting cover and the rotating cylinder;

[0021] Figure 5 This is a partial sectional view of the rotating drum;

[0022] Figure 6 This is a schematic diagram of the wedge-shaped groove.

[0023] The following are the markings in the attached diagram: Upper template 1, Upper insert 2, Lower template 3, Lower insert 4, First groove 5, Second groove 6, Injection molding cavity 7, Boss 8, Slot 9, Limiting cover 10, Third groove 11, Inclined channel 12, First ball bearing 13, Rotary cylinder 14, Wedge groove 15, Protrusion 16, Horizontal plane 17, Vertical plane 18, Inclined plane 19, First spring 20, Support plate 21, Gear ring 22, Gear 23, Motor 24, Vertical channel 25, Second ball bearing 26, Third ball bearing 27, Second spring 28, Support platform 29, Limiting groove 30, First sliding hole 31, Hydraulic channel 32, Second sliding hole 33, T-shaped slider 34, Third spring 35, Sliding column 36, Cover 37, Magnetic block 38, Electromagnet 39, Slide groove 40, Thermal expansion block 41, Mounting hole 42, Connector 43. Detailed Implementation

[0024] like Figures 1-6 As shown, this invention discloses an interchangeable injection mold for air conditioning housings in new energy vehicles, comprising an upper mold plate 1, an upper insert 2, a lower mold plate 3, and a lower insert 4. A hydraulic cylinder is installed between the upper mold plate 1 and the lower mold plate 3 to achieve automatic molding and demolding. The upper insert 2 and the lower insert 4 are respectively installed in the upper mold plate 1 and the lower mold plate 3, and cavities are formed on their corresponding contact surfaces. A first groove 5 for installing the upper insert 2 is formed on the lower side of the upper mold plate 1, and a second groove 6 for installing the lower insert 4 is formed on the upper side of the lower mold plate 3. The upper insert 2 and the lower insert 4 are combined to form an injection molding cavity 7. When the upper insert 2 and the lower insert 4 are separated, demolding occurs within the injection molding cavity 7. It can be understood that by replacing different models of the upper insert 2 and the lower insert 4, different models of automotive air conditioning housings can be replaced.

[0025] As an improvement to the embodiment of the present invention, the lower part of the lower insert 4 is formed with a boss 8, and an annular groove 9 is formed on the outer side of the boss 8. A limiting cover 10 is installed on the inner side of the lower template 3. When the lower insert 4 is replaced, the boss 8 can be separated from the limiting cover 10. A third groove 11 is formed on the inner side of the limiting cover 10 for cooperating with the boss 8. The boss 8 can be inserted into the third groove 11.

[0026] The limiting cover 10 has circumferentially spaced inclined channels 12, and a first ball bearing 13 is rolled within the inclined channels 12. It is understood that when the first ball bearing 13 rolls within the inclined channels 12, it can contact either the rotating cylinder 14 or the boss 8. A rotating cylinder 14 is rotatably mounted on the outer side of the limiting cover 10. Wedge-shaped grooves 15 are circumferentially spaced on the inner side of the rotating cylinder 14, each corresponding to a first ball bearing 13. A protrusion 16 is formed between adjacent wedge-shaped grooves 15 to circumferentially limit the first ball bearing 13. The protrusion 16 extends radially. When the rotating cylinder 14 rotates, the wedge-shaped grooves 15 drive the first ball bearing 13 to move radially, allowing the first ball bearing 13 to either engage with or disengage from the slot 9.

[0027] Specifically, when the boss 8 needs to be removed, the rotating cylinder 14 is rotated so that the lowest point of the wedge groove 15 inside the rotating cylinder 14 corresponds to the first ball 13. Under the action of gravity, the second ball 26 moves outward in the inclined channel 12, losing its limiting effect on the boss 8's slot 9. After the lower insert 4 is replaced, the boss 8 is inserted into the limiting cover 10 until the slot 9 of the boss 8 corresponds to the position of the first ball 13. The rotating cylinder 14 is rotated in the opposite direction, and the wedge groove 15 drives the first ball 13 to roll inward in the inclined channel 12 until the first ball 13 is engaged in the slot 9. Under the limiting effect of the first ball 13, the position of the boss 8 is limited and fixed.

[0028] In this embodiment, the slot 9 includes a horizontal surface 17, a vertical surface 18, and an inclined surface 19. The horizontal surface 17 is located on the upper side of the slot 9, and the inclined surface 19 is located on the lower side of the slot 9 and extends downward toward the outside of the boss 8. By setting the inclined surface 19, it is easier for the first ball 13 to be inserted into the slot 9, reducing the occurrence of jamming. The axis of the inclined channel 12 extends downward toward the outside of the limiting cover 10. When the first ball 13 is not limited, it can automatically move outward under the action of gravity, thereby simplifying the device structure.

[0029] In this embodiment, an elastic support device is installed between the boss 8 and the limiting cover 10. The elastic support device includes a first spring 20 and a support plate 21. The lower end of the first spring 20 is fixedly installed at the bottom of the third groove 11, and the upper end of the first spring 20 is fixedly connected to the support plate 21. The support plate 21 contacts the bottom of the boss 8. By setting the elastic support device, an upward pre-support force can be provided for the lower insert 4 when it is disassembled, so that the lower insert 4 can be easily removed outward, making the disassembly process more convenient.

[0030] In this embodiment, a gear ring 22 is coaxially mounted on the outer side of the rotating drum 14. The gear ring 22 meshes with a gear 23, which is connected to a motor 24. The motor 24 and the gear 23 are installed in an installation groove opened on the inner side of the lower template 3. When the motor 24 starts, it drives the gear 23 to rotate, which in turn drives the gear ring 22 to rotate. The gear ring 22 can then drive the rotating drum 14 to rotate, thus achieving automatic control of the rotation of the rotating drum 14.

[0031] In this embodiment, the rotating drum 14 is provided with vertical channels 25 that pass through its axial direction at even intervals along the circumference. A second ball bearing 26 and a third ball bearing 27 are slidably arranged from top to bottom in the vertical channels 25. The diameters of the second ball bearing 26 and the third ball bearing 27 correspond to the vertical channels 25. A second spring 28 is connected between the second ball bearing 26 and the third ball bearing 27. The upper surface of the second ball bearing 26 abuts against the step of the boss 8. A lifting control component is installed on the lower side of the third ball bearing 27. A support platform 29 is installed on the inner side of the rotating drum 14. A limiting groove 30 is opened on the support platform 29 to limit the third ball bearing 27, which corresponds to the vertical channels 25. The lifting control component is installed at the bottom of the limiting groove 30 to control the lifting of the lower ball bearing.

[0032] In this embodiment, the bottom of the limiting groove 30 is provided with a first sliding hole 31, the lower template 3 is provided with a hydraulic channel 32 and a second sliding hole 33, the hydraulic channel 32 is filled with hydraulic oil, the second slider is opened on the end face of the lower template 3, the first sliding hole 31 is connected to the second sliding hole 33 through the hydraulic channel 32, the lifting control component includes a T-shaped slider 34, a third spring 35, and a sliding column 36, the T-shaped slider 34 and the sliding column 36 are respectively slidably sealed with the first sliding hole 31 and the second sliding hole 33, and the two ends of the third spring 35 are respectively connected to the bottom of the sliding column 36 and the second sliding hole 33.

[0033] When the upper mold plate 1 and the lower mold plate 3 are opened, the sliding column 36 extends outward under the support of the third spring 35, and the third ball bearing 27 is inserted downward into the limiting groove 30. At this time, the rotating cylinder 14 cannot rotate, which avoids interference with the rotation angle of the rotating cylinder 14 when installing the lower insert 4, and can increase the stability of the structure during use. When the mold is closed, the sliding column 36 moves downward under the action of the upper mold plate 1. Through the transmission of hydraulic force, it drives the T-shaped slider 34 upward, causing the third ball bearing 27 to disengage from the limiting groove 30. The rotating cylinder 14 loses its limit and can rotate freely under the action of the motor 24, which can facilitate the locking of the lower insert 4.

[0034] In this embodiment, the bottom of the lower template 3 is detachably connected to a cover 37, which is used to support the support platform 29 and facilitates the disassembly of the device for installation and maintenance.

[0035] In this embodiment, a magnetic block 38 is mounted on the top of the upper insert 2, and an electromagnet 39 corresponding to the magnetic block 38 is mounted in the first groove 5. The electromagnet 39 is connected to a controller. The electromagnet 39 is connected to a power supply and a controller. When the upper insert 2 is working, the power supply is turned on, and the electromagnet 39 is energized, which can attract the magnetic block 38 to prevent the upper insert 2 from falling off. When the upper insert 2 needs to be replaced, the power supply is turned off.

[0036] In this embodiment, the electromagnet 39 is installed in the groove 40 inside the first groove 5. A thermal expansion block 41 is fixedly connected to the top of the electromagnet 39. The thermal expansion block 41 is installed in the mounting hole 42 inside the upper mold plate 1. The upper end of the thermal expansion block 41 is fixed to the upper mold plate 1 by a connector 43. The thermal expansion block 41 is made of alloy steel or shape memory alloy. During injection molding, the thermal expansion block 41 can expand due to heat, driving the electromagnet 39 to move downward, thereby pressing the upper insert 2 against the lower insert 4. After replacing the upper insert 2 and the lower insert 4, the installation or manufacturing error is reduced, thereby reducing the gap between the upper insert 2 and the lower insert 4, which is beneficial to improving the injection molding quality.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. An interchangeable injection mold for air conditioning housings in new energy vehicles, characterized in that: The system includes an upper template, an upper insert, a lower template, and a lower insert. The lower side of the upper template has a first groove for mounting the upper insert, and the upper side of the lower template has a second groove for mounting the lower insert. The upper and lower inserts are combined to form an injection molding cavity. A boss is formed at the bottom of the lower insert, and an annular groove is formed on the outer side of the boss. A limit cover is installed on the inner side of the lower template, and a third groove is formed on the inner side of the limit cover to mate with the boss. The limit cover has evenly spaced inclined channels, and first ball bearings are rolled within these inclined channels. A rotating cylinder is rotatably mounted on the outer side of the device. Wedge-shaped grooves are evenly spaced circumferentially on the inner side of the rotating cylinder, each corresponding to a first ball bearing. A protrusion is formed between adjacent wedge-shaped grooves to circumferentially limit the movement of the first ball bearing. This protrusion extends radially. When the rotating cylinder rotates, the wedge-shaped grooves drive the first ball bearing to move radially, allowing it to engage with or disengage from a slot. The slot includes a horizontal plane, a vertical plane, and an inclined plane. The horizontal plane is located on the upper side of the slot, and the inclined plane is located on the lower side of the slot and extends downwards towards the outer side of the protrusion. The inclined channel extends downwards towards the outside of the limiting cover; vertical channels are evenly spaced along the circumference of the rotating cylinder, penetrating its axial direction. A second ball bearing and a third ball bearing are slidably arranged from top to bottom within the vertical channels. The diameters of the second and third balls correspond to the vertical channels. A second spring connects the second and third balls. The upper surface of the second ball bearing abuts against the step of the boss. A lifting control assembly is installed on the lower side of the third ball bearing. A support platform is installed on the inner side of the rotating cylinder, and a feature corresponding to the vertical channels is provided on the support platform for... The third ball bearing is used to limit the position in the limiting groove. The lifting control component is installed at the bottom of the limiting groove. The bottom of the limiting groove is provided with a first sliding hole. The lower template is provided with a hydraulic channel and a second sliding hole. The hydraulic channel is filled with hydraulic oil. The second slider is opened on the end face of the lower template. The first sliding hole is connected to the second sliding hole through the hydraulic channel. The lifting control component includes a T-shaped slider, a third spring, and a sliding column. The T-shaped slider and the sliding column are respectively slidably sealed with the first sliding hole and the second sliding hole. The two ends of the third spring are respectively connected to the bottom of the sliding column and the second sliding hole.

2. The interchangeable injection mold for air conditioning housings in new energy vehicles according to claim 1, characterized in that: An elastic support device is installed between the boss and the limiting cover. The elastic support device includes a first spring and a support plate. The lower end of the first spring is fixedly installed at the bottom of the third groove, and the upper end of the first spring is fixedly connected to the support plate. The support plate is in contact with the bottom of the boss.

3. The injection mold for an interchangeable housing of an air conditioner for new energy vehicles according to claim 1, characterized in that: A gear ring is coaxially mounted on the outer side of the rotating drum. The gear ring meshes with a gear, which is connected to a motor. The motor and gear are installed in an installation slot opened on the inner side of the lower template.

4. The interchangeable injection mold for air conditioning housings in new energy vehicles according to claim 1, characterized in that: The bottom of the lower template is detachably connected to a cover, which is used to support the support platform.

5. An interchangeable injection mold for an air conditioning housing for new energy vehicles according to any one of claims 1-4, characterized in that: A magnet is mounted on the top of the upper insert, and an electromagnet corresponding to the magnet is mounted in the first groove. The electromagnet is connected to the controller.

6. An interchangeable injection mold for an air conditioning housing in a new energy vehicle according to claim 5, characterized in that: The electromagnet is installed in the groove opened inside the first groove. A thermal expansion block is fixedly connected to the top of the electromagnet. The thermal expansion block is installed in the mounting hole opened inside the upper template. The upper end of the thermal expansion block is fixed inside the upper template by a connector.

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