Mold anti-displacement and retreat-preventing structure of new energy automobile air conditioner shell

Abstract

The application discloses a new energy automobile air conditioner shell mold anti-displacement retreat structure and belongs to the technical field of molds. The new energy automobile air conditioner shell mold anti-displacement retreat structure comprises a lower mold, an installation cavity is formed in the lower mold, an insert block is slidably connected in the installation cavity, an oil cylinder for pushing the insert block is arranged in the installation cavity, sliding grooves are formed in the two sides of the insert block, positioning frames are slidably connected in the sliding grooves, and driving structures for driving the positioning frames to move are arranged in the sliding grooves. Positioning grooves corresponding to the positioning frames are formed in the two sides of the installation cavity. The new energy automobile air conditioner shell mold anti-displacement retreat structure aims to solve the problem that the insert block is prone to retreat during injection molding of the new energy automobile air conditioner shell, thereby reducing the qualified rate of the air conditioner shell.

Description

Technical Field

[0001] This invention belongs to the field of mold technology, specifically relating to a mold anti-displacement and anti-reverse structure for an air conditioning housing of a new energy vehicle. Background Technology

[0002] Air conditioning housings for new energy vehicles are generally manufactured using injection molding. Structures such as the air inlet require movable inserts on the mold to assist in molding. After the housing is formed, the inserts are retracted for core removal. However, in the existing technology, due to the high cavity pressure in the molding cavity, the movable inserts are prone to dislodging during injection molding, causing the dimensions of the air conditioning housing to not meet the standards, thus reducing the product qualification rate. Summary of the Invention

[0003] In view of this, the present invention discloses a mold anti-displacement and anti-retraction structure for air conditioning housing of new energy vehicles. Its purpose is to address the problem that inserts are prone to displacement during the injection molding process of air conditioning housing of new energy vehicles, which leads to a decrease in the pass rate of air conditioning housing.

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

[0005] A mold anti-displacement and anti-reverse structure for an air conditioner housing of a new energy vehicle includes a lower mold with an installation cavity. An insert is slidably connected in the installation cavity, and a hydraulic cylinder for pushing the insert is also provided in the installation cavity. Sliding grooves are provided on both sides of the insert, and positioning frames are slidably connected in each sliding groove. A driving structure for moving the positioning frames is provided in each sliding groove. Positioning slots corresponding to the positioning frames are provided on both sides of the installation cavity.

[0006] In this design, after the hydraulic cylinder pushes the insert to the desired position, the drive structure drives the positioning frame to insert into the positioning groove. The cooperation between the positioning frame and the positioning groove limits the insert, preventing it from moving backward during injection molding and thus avoiding a decrease in the yield rate of the air conditioner housing. When the insert needs to be pulled out, the drive structure simply pushes the positioning frame from the positioning groove into the slide groove, making the operation simple.

[0007] Furthermore, the driving structure includes a hydraulic cylinder disposed at the bottom of the slide groove, and the positioning frame includes a movable rod coaxially fixed to the end of the hydraulic cylinder. Each end of the movable rod is coaxially slidably fitted with a clamping sleeve located within the slide groove. Supporting elastic elements are provided between the clamping sleeve and the positioning frame, and the diameter of the clamping sleeve is smaller than the diameter of the positioning groove. Several mounting grooves parallel to the movable rod are formed on the periphery of the clamping sleeve. Each mounting groove has a guide groove perpendicular to the axis of the clamping sleeve. A sealing plate is coaxially slidably disposed within each guide groove. A support rod extending into the mounting groove is fixed to the sealing plate, and a reset elastic element is provided between the sealing plate and the clamping sleeve. A clamping plate is parallel to each mounting groove, and the middle of the clamping plate is hinged to the end of the corresponding support rod, with a torsion spring provided at the hinge point. A closing plate is fixed to the end of the movable rod and slidably connected to the clamping sleeve. Hydraulic oil is sealed inside the clamping sleeve.

[0008] In this design, when the insert moves to the processing position, the hydraulic cylinder drives the moving rod to move towards the positioning groove until the clamping sleeve at the end of the moving rod abuts against the end of the positioning groove. At this time, the sealing plate at the end of the moving rod squeezes the hydraulic oil, which pushes the sealing plate to move. The pushing of the sealing plate, in turn, drives the clamping plate to move towards the side wall of the positioning groove through the support rod until all the clamping plates abut against the side wall of the positioning groove, at which point the hydraulic cylinder is closed. When core pulling is required, the hydraulic cylinder drives the moving rod to move in the opposite direction. The moving rod drives the sealing plate to reset, and the force of the hydraulic oil on the sealing plate gradually decreases. Then, the support rod, under the action of supporting the elastic element, drives the clamping plate to slide into the installation groove, and the moving rod continues to move in the opposite direction to drive the clamping sleeve to slide into the slide groove. Compared to conventional mechanical locking used in existing technologies, in this solution, the clamping plate is always located within the mounting groove during the insertion or disengagement of the positioning frame. This prevents excessive friction between the clamping plate and the side wall of the positioning groove, effectively reducing wear between the clamping plate and the side wall of the positioning groove. This, in turn, prevents gaps between the clamping plate and the positioning groove from causing the insert to loosen or move backward. Furthermore, even if the positioning groove experiences localized wear, the clamping plate and the support rod can be hinged together to ensure a tight fit between the clamping plate and the positioning groove, preventing the insert from loosening or moving backward during the injection molding process.

[0009] Furthermore, several adjusting grooves are coaxially formed on the sidewalls of the chute, and a support seat is slidably arranged in each adjusting groove. A spherical cavity is formed at the center of each support seat, and a connecting ball is rotatably arranged in the spherical cavity. A through hole for the moving rod to pass through is provided in the connecting ball. Auxiliary support members are provided between the support seat and the adjusting groove, and between adjacent support seats. The auxiliary support members include a guide rod that is ball-jointed to the sidewall of the support seat and faces the hydraulic cylinder. A hydraulic groove is coaxially formed at the end of the guide rod, and a connecting rod is slidably connected to each hydraulic groove. The end of the connecting rod is ball-jointed to the sidewall of the adjusting groove and the end face of the support seat away from the hydraulic cylinder. A hydraulic plate is fixed on the end of the connecting rod facing the hydraulic groove. An overflow valve is provided on the hydraulic plate, and hydraulic oil is also sealed in the hydraulic groove.

[0010] In this design, the insert is constantly subjected to forces within the mold cavity during injection molding, causing the moving rod to be subjected to continuous shear forces. Over time, this can lead to bending. When the moving rod bends, the overflow valve on the hydraulic plate remains open as the drive structure inserts the positioning frame into the positioning groove. At this point, the connecting rod can move relative to the guide rod. When the bent portion of the moving rod passes through the connecting ball, the connecting ball adapts to the bending by moving within the adjustment groove through the support seat. When the clamping plate abuts against the side wall of the positioning groove, the overflow valve closes, and the hydraulic oil on both sides of the hydraulic plate restricts its movement, thus fixing the connecting rod relative to the guide rod. At this point, the auxiliary support between the support seat and the adjustment groove transmits the force of the positioning frame to the insert, thus limiting the insert's backward movement. The auxiliary support between adjacent support seats provides support for the moving rod, preventing further bending during injection molding.

[0011] Furthermore, a pressure sensor is provided on the end of the moving rod, and the pressure sensor is electrically connected to a controller for controlling the opening and closing of the corresponding hydraulic cylinder; the relief valve is also controlled by the controller to open and close.

[0012] Furthermore, all the positioning grooves are inclined toward the direction of the hydraulic cylinder.

[0013] Furthermore, the movable rod is provided with a friction plating layer on its periphery.

[0014] Furthermore, each of the abutment plates has a rubber pad layer on its surface.

[0015] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. 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 schematic diagram of the structure of an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the insert in an embodiment of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged diagram of point B in the middle.

[0021] The following components are marked in the attached diagram: lower mold 1, insert 2, oil cylinder 3, hydraulic cylinder 4, moving rod 5, clamping sleeve 6, sealing plate 7, mounting groove 8, support rod 9, clamping plate 10, support elastic element 11, closing plate 12, reset elastic element 13, support seat 14, connecting ball 15, guide rod 16, connecting rod 17, hydraulic plate 18, overflow valve 19. Detailed Implementation

[0022] like Figures 1-4 As shown:

[0023] A mold anti-displacement and anti-reverse structure for an air conditioner housing of a new energy vehicle includes a lower mold 1, on which an installation cavity is formed. An insert 2 is slidably connected in the installation cavity. A hydraulic cylinder 3 for pushing the insert 2 is also provided in the installation cavity. Sliding grooves are formed on both sides of the insert 2. A positioning frame is slidably connected in each sliding groove. A driving structure for moving the positioning frame is provided in each sliding groove. Positioning grooves corresponding to the positioning frames are formed on both sides of the installation cavity.

[0024] In this design, after the hydraulic cylinder 3 pushes the insert 2 to the desired position, the drive structure drives the positioning frame to insert into the positioning groove. The cooperation between the positioning frame and the positioning groove limits the position of the insert 2, preventing it from moving backward during injection molding and thus avoiding a decrease in the yield rate of the air conditioner housing. When the insert 2 needs to be pulled out, the drive structure pushes the positioning frame from the positioning groove into the slide groove, making the operation simple.

[0025] In this embodiment, the driving structure includes a hydraulic cylinder 4 disposed at the bottom of the slide groove, and the positioning frame includes a movable rod 5 coaxially fixed to the end of the hydraulic cylinder 4. Each end of the movable rod 5 is coaxially slidably fitted with a clamping sleeve 6 located within the slide groove. A supporting elastic element 11 is provided between the clamping sleeve 6 and the positioning frame, and the diameter of the clamping sleeve 6 is smaller than the diameter of the positioning groove. Several mounting grooves 8 parallel to the movable rod 5 are formed on the periphery of the clamping sleeve 6, and each mounting groove 8 has a perpendicular groove to the clamping sleeve 6. The guide groove of the axis has a sealing plate 7 slidably arranged coaxially in each guide groove. A support rod 9 extending into the mounting groove 8 is fixed on the sealing plate 7. A reset elastic element 13 is provided between the sealing plate 7 and the clamping sleeve 6. A clamping plate 10 is arranged parallel to each other in each mounting groove 8. The middle part of the clamping plate 10 is hinged to the end of the corresponding support rod 9, and a torsion spring is provided at the hinge. The end of the moving rod 5 is fixed with a sealing plate 12 that is slidably connected to the clamping sleeve 6. The clamping sleeve 6 is sealed with hydraulic oil.

[0026] In this scheme, when the insert 2 moves to the processing position, the hydraulic cylinder 4 drives the moving rod 5 to move toward the positioning groove until the clamping sleeve 6 at the end of the moving rod 5 abuts against the end of the positioning groove. At this time, the sealing plate 12 at the end of the moving rod 5 squeezes the hydraulic oil, and uses the hydraulic oil to push the sealing plate 7 to move. The pushing of the sealing plate 7 drives the clamping plate 10 to move toward the side wall of the positioning groove through the support rod 9 until all the clamping plates 10 abut against the side wall of the positioning groove, and then the hydraulic cylinder 4 is closed. When it is necessary to perform core pulling, the hydraulic cylinder 4 drives the moving rod 5 to move in the opposite direction. The moving rod 5 drives the sealing plate 12 to reset. The force of the hydraulic oil on the sealing plate 7 gradually decreases. Then, the support rod 9, under the action of supporting the elastic element 11, drives the clamping plate 10 to slide into the mounting groove 8, and the moving rod 5 continues to move in the opposite direction to drive the clamping sleeve 6 to slide into the slide groove. Compared to the conventional mechanical locking used in the prior art, in this solution, during the insertion or removal of the positioning frame from the positioning groove, the clamping plate 10 is always located within the mounting groove 8, preventing excessive friction between the clamping plate 10 and the side wall of the positioning groove. This effectively reduces wear between the clamping plate 10 and the side wall of the positioning groove, thereby preventing gaps between the clamping plate 10 and the positioning groove that could cause the insert 2 to loosen or move backward. Furthermore, even if the positioning groove experiences localized wear, the clamping plate 10 can be tightly fitted to the positioning groove through the hinge between the clamping plate 10 and the support rod 9, preventing the insert 2 from loosening or moving backward during the injection molding process.

[0027] In this embodiment, several adjusting grooves are coaxially formed on the sidewalls of the slide grooves. Support seats 14 are slidably arranged in each adjusting groove. A spherical cavity is formed at the center of each support seat 14. A connecting ball 15 is rotatably arranged in the spherical cavity. A through hole for the moving rod 5 to pass through is provided in the connecting ball 15. Auxiliary support members are provided between the periphery of the support seat 14 and the adjusting grooves, and between adjacent support seats 14. The auxiliary support members include a guide rod 16 that is ball-jointed to the periphery of the support seat 14 and faces the end of the support seat 14 toward the hydraulic cylinder 4. A hydraulic groove is coaxially formed at the end of the guide rod 16. A connecting rod 17 is slidably connected coaxially in each hydraulic groove. The end of the connecting rod 17 is ball-jointed to the sidewall of the adjusting groove and the end face of the support seat 14 away from the hydraulic cylinder 4. A hydraulic plate 18 is fixed on the end of the connecting rod 17 facing the hydraulic groove. An overflow valve 19 is provided on the hydraulic plate 18. Hydraulic oil is also sealed in the hydraulic groove.

[0028] In this design, during the injection molding process, the insert 2 is constantly subjected to the force within the mold cavity, causing the moving rod 5 to be continuously subjected to shear force. Under long-term action, the moving rod 5 is prone to bending. After the moving rod 5 bends, when the drive structure drives the positioning frame to insert into the positioning groove, the overflow valve 19 on the hydraulic plate 18 remains open. At this time, the connecting rod 17 can move relative to the guide rod 16. When the bent part of the moving rod 5 passes through the connecting ball 15, the connecting ball 15 adapts to the bending of the moving rod 5 by moving the support seat 14 in the adjustment groove. When the clamping plate 10 abuts against the side wall of the positioning groove, the overflow valve 19 closes, and the hydraulic oil on both sides of the hydraulic plate 18 restricts the movement of the hydraulic plate 18, thereby fixing the connecting rod 17 relative to the guide rod 16. At this time, the auxiliary support between the support seat 14 and the adjustment groove transmits the force of the positioning frame to the insert 2, thereby restricting the insert 2 from moving backward. The auxiliary support between adjacent support seats 14 provides support for the moving rod 5, preventing the moving rod 5 from bending further during the injection molding process.

[0029] In this embodiment, a pressure sensor (a conventional technique, so it is not shown in the figure) is provided on the end of the moving rod 5. The pressure sensor is electrically connected to a controller (a conventional technique, so it is not shown in the figure) for controlling the opening and closing of the corresponding hydraulic cylinder 4. The overflow valve 19 is also controlled by the controller to open and close.

[0030] When the pressure plates 10 are in contact with the side wall of the positioning groove, the pressure inside the pressure sleeve 6 reaches its maximum, and the data detected by the pressure sensor reaches the set value. At this time, the controller controls the hydraulic cylinder 4 to close, and also controls the relief valve 19 to close. When the hydraulic cylinder 4 controls the moving rod 5 to reset, the pressure inside the pressure sleeve 6 decreases. When the data detected by the pressure sensor is less than the set value, the controller controls the relief valve 19 to open while keeping the hydraulic cylinder 4 running.

[0031] In this embodiment, all the positioning grooves are inclined toward the direction of the oil cylinder 3.

[0032] The positioning groove is tilted to reduce the shear force on the positioning frame.

[0033] In this embodiment, the movable rod 5 is provided with a friction coating on all sides.

[0034] By applying a friction coating, wear between the moving rod 5 and the connecting ball 15 is reduced.

[0035] In this embodiment, the surface of the abutment plate 10 is provided with a rubber pad layer.

[0036] By adding a rubber pad layer, the wear between the clamping plate 10 and the side wall of the positioning groove is further reduced.

[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. A mold anti-displacement and anti-reverse structure for an air conditioner housing of a new energy vehicle, comprising a lower mold, wherein an installation cavity is provided on the lower mold, an insert is slidably connected in the installation cavity, and a hydraulic cylinder for pushing the insert is also provided in the installation cavity, characterized in that: Both sides of the insert are provided with sliding grooves, and positioning frames are slidably connected in each sliding groove. Each sliding groove is provided with a drive structure for moving the positioning frames. Both sides of the mounting cavity are provided with positioning slots corresponding to the positioning frames. The drive structure includes a hydraulic cylinder located at the bottom of the sliding groove. The positioning frame includes a moving rod coaxially fixed to the end of the hydraulic cylinder. Each end of the moving rod is coaxially slidably fitted with a clamping sleeve located in the sliding groove. A supporting elastic element is provided between the clamping sleeve and the positioning frame, and the diameter of the clamping sleeve is smaller than the diameter of the positioning groove. Several mounting slots parallel to the moving rod are provided around the clamping sleeve. Each mounting slot has a guide slot perpendicular to the axis of the clamping sleeve. A sealing plate is slidably arranged coaxially in each guide slot. A support rod extending into the mounting slot is fixed on the sealing plate, and a reset elastic element is provided between the sealing plate and the clamping sleeve. A clamping plate is arranged parallel to each mounting slot. The middle of the clamping plate is hinged to the end of the corresponding support rod, and a [missing information - likely a design feature] is provided at the hinge. A torsion spring is provided; a closed plate is fixed to the end of the moving rod and slidably connected to the clamping sleeve, and the clamping sleeve is sealed with hydraulic oil; several adjusting grooves are coaxially opened on the side wall of the slide groove, and a support seat is slidably arranged in each adjusting groove. A spherical cavity is opened at the center of the support seat, and a connecting ball is rotatably arranged in the spherical cavity. A through hole for the moving rod to pass through is provided in the connecting ball; auxiliary support members are provided between the support seat and the adjusting groove and between adjacent support seats. The auxiliary support members include a guide rod that is ball-jointed to the side of the support seat and faces the hydraulic cylinder. A hydraulic groove is coaxially opened at the end of the guide rod, and a connecting rod is slidably connected to each hydraulic groove. The end of the connecting rod is ball-jointed to the side wall of the adjusting groove and the end face of the support seat away from the hydraulic cylinder. A hydraulic plate is fixed on the end of the connecting rod facing the hydraulic groove. An overflow valve is provided on the hydraulic plate, and hydraulic oil is also sealed in the hydraulic groove; the positioning grooves are all inclined towards the direction of the oil cylinder.

2. The mold anti-displacement and anti-backward structure for a new energy vehicle air conditioner housing according to claim 1, characterized in that: A pressure sensor is installed at the end of the moving rod, and the pressure sensor is electrically connected to a controller for controlling the opening and closing of the corresponding hydraulic cylinder; the relief valve is also controlled by the controller.

3. The mold anti-displacement and anti-backward structure for a new energy vehicle air conditioner housing according to claim 2, characterized in that: The movable rod is provided with a friction coating on its periphery.

4. The mold anti-displacement and anti-backward structure for a new energy vehicle air conditioner housing according to claim 3, characterized in that: The surface of each clamping plate is provided with a rubber pad layer.

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