Demolding mechanism for automobile glove box

Abstract

The application discloses a demolding mechanism of a car glove box body and relates to the technical field of car molds. The demolding mechanism of the car glove box body comprises a fixed mold and a movable mold. The fixed mold is provided with a convex part used for constructing an inner surface of the glove box body. The movable mold is connected to the fixed mold in a separable manner and is used for constructing an outer surface of the glove box body. When the movable mold is separated from the fixed mold, the convex part is demolded from the inside of the glove box body. According to the demolding mechanism of the car glove box body, the convex part used for constructing the inner surface of the glove box body is arranged on the fixed mold. When the movable mold is separated from the fixed mold, the convex part is demolded from the inside of the glove box body. The demolding of the inside of the glove box body can be directly realized when the mold is opened. The structure of the demolding mechanism is simplified, the demolding step is simplified, and the size of the mold is reduced.

Description

Technical Field

[0001] This invention relates to the field of automotive mold technology, and in particular to a demolding mechanism for an automotive glove box body. Background Technology

[0002] In related technologies, when demolding the inside of the glove box, the undercut slider has a long demolding stroke. Because of the long stroke of the slider, the slide block that drives the slider also needs to be enlarged to support the stable movement of the slider. This results in a large overall mold volume and a large injection molding machine size, which is not conducive to reducing manufacturing costs. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in the related art. To this end, one object of this invention is to provide a demolding mechanism for an automotive glove box body. By providing a protrusion for constructing the inner surface of the glove box body in a fixed mold, the protrusion disengages from the inner side of the glove box body when the moving mold separates from the fixed mold. This allows for direct demolding of the inner side of the glove box body during mold opening, simplifying the structure of the demolding mechanism, simplifying the demolding steps, and reducing mold size.

[0004] According to an embodiment of the present invention, a demolding mechanism for an automotive glove box body includes: a fixed mold and a movable mold. The fixed mold is provided with a protrusion for forming the inner surface of the glove box body. The movable mold is detachably connected to the fixed mold and is used to form the outer surface of the glove box body. When the movable mold is separated from the fixed mold, the protrusion is dislodged from the glove box body.

[0005] According to an embodiment of the present invention, the demolding mechanism for the glove box body of an automobile can directly demold the inner side of the glove box body by providing a protrusion for constructing the inner surface of the glove box body on the fixed mold. When the moving mold separates from the fixed mold, the protrusion is ejected from the inner side of the glove box body. This can simplify the structure of the demolding mechanism, simplify the demolding steps, and reduce the mold size.

[0006] In addition, the demolding mechanism for the automotive glove box body according to the above embodiments of the present invention may also have the following additional technical features: In some examples of the present invention, the moving mold includes: a first inclined top and a first slider, the first inclined top having a recess and a first groove extending along a first direction, one end of the recess communicating with the first groove; the first slider having a first position and a second position, in the first position the first slider is disposed in the recess, and in the second position the first slider is disposed in the first groove.

[0007] In some examples of the present invention, the moving mold includes a second slider, the second slider having an inclined extending first guide rail, the first slider being slidably connected to the first guide rail, and the second slider being configured to guide the first slider to move along a first direction when moving along a second direction, the first direction having an angle with the second direction.

[0008] In some examples of the present invention, the second slider is provided with a plurality of positioning ribs extending along the second direction, and the first inclined top is provided with a plurality of through grooves, the positioning ribs passing through the through grooves.

[0009] In some examples of the present invention, the first inclined top is provided with a second sliding groove, and the second slider is slidably connected to the second sliding groove.

[0010] In some examples of the present invention, the moving mold includes a slider cylinder adapted to drive the second slider to move along the second direction.

[0011] In some examples of the present invention, the moving mold includes a limiting member, which includes a first part and a second part. The first part is provided with a limiting groove, and the connecting end of the slider cylinder passes through the limiting groove and is connected to the second slider. The second part is fixedly connected to the first inclined top along the second direction.

[0012] In some examples of the present invention, the moving mold includes a first ejector rod and a second guide rail extending along a third direction. The first inclined ejector rod is slidably connected to the second guide rail. The first ejector rod is connected to the first inclined ejector rod and drives the first inclined ejector rod to move along the third direction in a fourth direction. The fourth direction and the third direction both have an angle.

[0013] In some examples of the present invention, the moving mold includes a first guide block connected to the end of the first ejector rod, the first inclined ejector having a third guide rail extending along a fifth direction, the first guide block being slidably connected to the third guide rail, and the third direction having an angle with both the fourth and fifth directions.

[0014] In some examples of the present invention, the displacement vector of the first push rod, the displacement vector of the first guide block, and the displacement vector of the first inclined push rod are connected end to end to form a closed triangle.

[0015] In some examples of the present invention, the moving mold includes a second inclined ejector, a second ejector rod, and a fourth guide rail extending along a sixth direction. The second inclined ejector is slidably connected to the fourth guide rail. The second ejector rod is connected to the second inclined ejector and drives the second inclined ejector to move along the sixth direction along the fourth direction. The sixth direction has an angle with the fourth direction.

[0016] In some examples of the present invention, the moving mold includes a second guide block, the second inclined top is provided with a fifth guide rail extending along a seventh direction, the second guide block is slidably connected to the fifth guide rail, and the seventh direction has an angle with both the sixth direction and the fourth direction.

[0017] In some examples of the present invention, the displacement vector of the second push rod, the displacement vector of the second guide block, and the displacement vector of the second inclined push rod are connected end to end to form a closed triangle.

[0018] In some examples of the present invention, the fixed mold includes a locking block disposed between the fixed mold and the moving mold. Attached Figure Description

[0019] Figure 1 These are schematic diagrams of the demolding mechanism in some embodiments of the present invention; Figure 2 These are cross-sectional views of the demolding mechanism in some embodiments of the present invention; Figure 3 This is a cross-sectional view of the demolding mechanism in another direction in some embodiments of the present invention; Figure 4 These are schematic diagrams of the demolding mechanism in some embodiments of the present invention (showing the state after the ejection movement); Figure 5 This is a partial structural schematic diagram of the demolding mechanism in some embodiments of the present invention (showing the state after the ejection movement); Figure 6 This is a partial structural schematic diagram of the demolding mechanism from another angle in some embodiments of the present invention (showing the state after the ejection movement); Figure 7 This is a partial structural schematic diagram of the demolding mechanism in some embodiments of the present invention (showing the state after the first slider moves). Figure 8 This is a partial enlarged view of the demolding mechanism in some embodiments of the present invention (showing the state of the first slider in the second position); Figure 9 This is a partial enlarged view of the demolding mechanism in some embodiments of the present invention (showing the state of the first slider in the first position); Figure 10 This is a partial structural schematic diagram of the demolding mechanism in some embodiments of the present invention (showing the cooperation between the first slider and the first guide rail); Figure 11 This is a schematic diagram of the movement direction of the demolding mechanism in some embodiments of the present invention (showing the third, fourth, and fifth directions); Figure 12This is a schematic diagram of the movement direction of the demolding mechanism in some embodiments of the present invention (showing the fourth, sixth, and seventh directions); Figure 13 This is a schematic diagram of the structure of the first inclined top in some embodiments of the present invention; Figure 14 These are schematic diagrams of the glove box body in some embodiments of the present invention; Figure 15 This is a structural schematic diagram of the glove box body opening direction in some embodiments of the present invention; Figure 16 This is a structural schematic diagram of the opening direction of the glove box body in related technologies.

[0020] Figure label: 10. Moving mold; 11. First inclined top; 111. Recess; 101. First slide groove; 103. Through groove; 102. Second slide groove; 112. Third guide rail; 113. First push rod; 114. First guide block; 11a. First plate; 11b. Second plate; 11c. Third plate; 11d. Base plate; 104. Third slide groove; 106. Mounting groove; 110. Receiving cavity; 12. First slider; 13. Second slider; 131. First guide rail; 14. Sliding hydraulic cylinder; 15. Limiting component; 151. First part; 105. Limiting groove; 152. Second part; 161. Second guide rail; 162. Fourth guide rail; 17. Second inclined jack; 171. Fifth guide rail; 172. Second jack rod; 173. Second guide block; 18. The third sloping peak; 19. The fourth sloping peak; 21. Locking block; 200. Glove box body; 210. First rib; 220. Second rib. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] Combination Figure 1 and Figure 4According to an embodiment of the present invention, a demolding mechanism for an automotive glove box body includes: a fixed mold (not shown) and a movable mold 10. The fixed mold is provided with a protrusion for forming the inner surface of the glove box body 200. The movable mold 10 is detachably connected to the fixed mold and is used to form the outer surface of the glove box body 200. When the movable mold 10 is separated from the fixed mold, the protrusion can be ejected from the glove box body 200. Specifically, during mold opening, the mold opens from the parting surface, the movable mold 10 separates from the fixed mold, and the movable mold 10, along with the injection-molded product, i.e., the glove box body 200, separates from the fixed mold. By providing the protrusion for forming the inner surface of the glove box body 200 on the fixed mold, the protrusion can be directly separated from the glove box body 200 during mold opening, achieving demolding at the internal opening of the glove box. Then, the movable mold 10 is used to achieve demolding of the outer surface of the glove box body 200, which simplifies the demolding structure.

[0023] Generally, because the glove box body 200 has an internal cavity with a large size and depth, in related technologies, the demolding stroke of the undercut slider is relatively long when demolding the glove box or the inside of the glove box body. Due to the long stroke of the slider, the sliding block that drives the slider also needs to be enlarged to support the stable movement of the slider, resulting in a large overall mold volume and a large injection molding machine size, which is not conducive to reducing manufacturing costs.

[0024] In this application, the interior of the glove box 200 can be demolded directly during mold opening, so that the demolding mechanism does not need to be set up with a separate structure to demold the interior of the glove box 200. This simplifies the structure of the demolding mechanism, simplifies the demolding steps, and reduces the overall size of the mold, which in turn reduces the size of the injection molding machine, thereby reducing manufacturing costs.

[0025] According to an embodiment of the present invention, the demolding mechanism for the glove box body of an automobile can directly demold the inner side of the glove box body 200 by providing a protrusion for constructing the inner surface of the glove box body 200 on the fixed mold. When the moving mold 10 separates from the fixed mold, the protrusion is ejected from the inner side of the glove box body 200. This can simplify the structure of the demolding mechanism, simplify the demolding steps, and reduce the mold size.

[0026] Combination Figures 7 to 9 In some embodiments of the present invention, the moving mold 10 includes: a first inclined top 11 and a first slider 12. The first inclined top 11 is provided with a recess 111 and a first groove 101 extending along a first direction. One end of the recess 111 communicates with the first groove 101. The first slider 12 has a first position and a second position. In the first position, the first slider 12 is disposed in the recess 111 (see...). Figure 9 In the second position, the first slider 12 is disposed in the first slide groove 101 (see...). Figure 8 ).

[0027] Specifically, in combination Figure 14 The recess 111 of the first inclined ejector 11 can form the first rib 210 on the outer surface of the glove box body 200. However, during demolding, if the first rib 210 does not extend along the demolding direction, it may be damaged. Therefore, the first inclined ejector 11 also has a first groove 101. During injection molding or manufacturing of the glove box body 200, the first slider 12 of the moving mold 10 is located in the first position, i.e., on the recess 111. (See [reference]). Figure 9 This facilitates the injection molding of the first rib 210 on the outer surface of the glove box body 200. Since the recess 111 communicates with the first slide groove 101, during demolding, the first slider 12 can move from the position of the recess 111 into the first slide groove 101, that is, from the first position to the second position. The first slider 12 moving to the first slide groove 101 is staggered from the recess 111. (See [reference]). Figure 8 Therefore, when the first slider 12 is pulled outward for demolding, the first slider 12 will not damage the first rib 210 on the glove box body 200. By providing the first groove 101 on the first inclined top 11, the first slider 12 can move between the recess 111 and the first groove 101. The first inclined top 11 can cooperate with the first slider 12 to achieve injection molding and demolding. In addition, since the first slider 12 moves on the first inclined top 11, there is no need to provide an additional demolding structure for the first rib 210. Moreover, the structure is compact and small in size, which is beneficial to reducing the size of the demolding mechanism.

[0028] Combination Figure 6 and Figure 10 In some embodiments of the present invention, the moving mold 10 includes a second slider 13, the second slider 13 is provided with an inclined extending first guide rail 131, the first slider 12 is slidably connected to the first guide rail 131, and the second slider 13 is configured to guide the first slider 12 to move along a first direction when it moves along a second direction, the first direction and the second direction having an angle.

[0029] In conjunction with the foregoing, when disengaging from the first rib 210 extending along the first direction of the glove box body 200, directly disengaging from the second direction would cause damage to the first rib 210. Therefore, it is necessary to first guide the first slider 12 to move in the first direction into the first groove 101 so that the first slider 12 disengages from the recess 111, and then drive the first slider 12 to disengage from the glove box body 200 along the second direction. Thus, by setting the first guide rail 131 extending at an inclination on the second slider 13, when the second slider 13 moves in the second direction, the first slider 12 can be guided to move in two different directions, which can improve the compactness of the demolding mechanism structure. By integrating the second guide rail 161 on the second slider 13, it is beneficial to simplify the structure of the demolding mechanism, thereby reducing the size of the demolding mechanism.

[0030] In actual operation, the second slider 13 can first drive the first slider 12 to move along the first direction to a second position, and then drive the first slider 12 to move along the second direction, thereby separating it from the glove box body 200 and achieving partial demolding. Specifically, the second slider 13 is provided with an inclined extending first guide rail 131. Thus, when the second slider 13 moves in the second direction, the first slider 12 can move on the first guide rail 131. The first guide rail 131 can be in the form of extending away from the recess 111 relative to the second direction, so that the first guide rail 131 can guide the first slider 12 to move away from the recess 111.

[0031] In some embodiments of the present invention, the second slider 13 is provided with a plurality of positioning ribs extending along a second direction, and the first inclined top 11 is provided with a plurality of through grooves 103. The positioning ribs pass through the through grooves 103, and the positioning ribs and through grooves 103 cooperate to form a plurality of second rib positions 220 on the outer surface of the glove box body 200. In practical applications, the second rib positions 220 can be used to improve the structural strength of the glove box body 200.

[0032] Combination Figure 13 In some embodiments of the present invention, the first inclined top 11 is provided with a second sliding groove 102, and the second slider 13 is slidably connected to the second sliding groove 102. The second slider 13 can cooperate with the second sliding groove 102 of the first inclined top 11 to achieve a sliding connection between the second slider 13 and the first inclined top 11. Specifically, when the second slider 13 drives the first slider 12 to move relative to the first inclined top 11, when the first inclined top 11 is stationary, the second slider 13 can move along a second direction on the first inclined top 11. The second sliding groove 102 of the first inclined top 11 can improve the stability of the movement of the second slider 13, which is beneficial for improving operational stability and structural compactness. When the first inclined top 11 moves to demold, the second slider 13 can retreat synchronously with the first inclined top 11, which is beneficial for demolding.

[0033] Specifically, in combination Figure 2 and Figure 13 The first inclined ejector 11 has a receiving cavity 110, and the second slider 13 is disposed in the receiving cavity 110. The bottom wall of the receiving cavity 110 has a second sliding groove 102, and the front wall of the receiving cavity 110 has a through groove 103. The positioning rib of the second slider 13 extends from the through groove 103. When the second slider 13 moves forward to drive the first slider 12 to move, it can move along the second sliding groove 102. When the first inclined ejector 11 demolds, the first inclined ejector 11 moves backward, and the front wall of the receiving cavity 110 can abut against the second slider 13, causing the second slider 13 to move backward synchronously.

[0034] Combination Figure 1 and Figure 2In some embodiments of the present invention, the moving mold 10 includes a slider cylinder 14, which is adapted to drive the second slider 13 to move along a second direction.

[0035] Combination Figure 2 and Figure 6 In some embodiments of the present invention, the moving mold 10 includes a limiting member 15, which includes a first part 151 and a second part 152. The first part 151 is provided with a limiting groove 105. The connecting end of the slider cylinder 14 passes through the limiting groove 105 and is connected to the second slider 13. The second part 152 is fixedly connected to the first inclined top 11 along the second direction.

[0036] Specifically, one end of the slider cylinder 14 is located on one side of the first part 151, and the connecting end of the slider cylinder 14 passes through the first part 151 and is connected to the second slider 13 on the other side of the first part 151. The second part 152 of the limiting member 15 is connected to the first inclined ejector 11. Thus, the limiting member 15 can limit the relative relationship between the first inclined ejector 11 and the second slider 13. When the first inclined ejector 11 is stationary, the first part 151 and the second slider 13 are opposite each other along the second direction. When the second slider 13 moves backward to achieve partial demolding of the first rib 210, the first part 151 of the limiting member 15 can limit the extreme position of the movement of the second slider 13. For example, the second slider 13 abuts against the wall of the first part 151, which helps to improve the stability of operation. Furthermore, the first part 151 and the second part 152 extend in different directions. For example, the second part 152 extends in the second direction and the first part 151 extends in a direction perpendicular to the second direction. By setting the limiting member 15 that extends in different directions, it is easy to realize the connection between the first inclined top 11 and the second slider 13, and it is beneficial to improve the structural compactness and reduce the size of the demolding mechanism.

[0037] Combination Figure 6 In some embodiments of the present invention, the moving mold 10 includes a first ejector rod 113 and a second guide rail 161 extending along a third direction. The first inclined ejector 11 is slidably connected to the second guide rail 161. The first ejector rod 113 is connected to the first inclined ejector 11 and drives the first inclined ejector 11 to move along a third direction in a fourth direction. The third direction and the fourth direction have an angle.

[0038] Specifically, the first ejector rod 113 can drive the first inclined ejector 11 to move along the fourth direction, thereby realizing the movement of the first inclined ejector 11 and demolding the first inclined ejector 11. In practical applications, the first inclined ejector 11 can correspond to the inclined wall surface of the glove box body 200. Therefore, the demolding mechanism sets the second guide rail 161 so that the first inclined ejector 11 is slidably connected to the second guide rail 161. The second guide rail 161 extends inclinedly relative to the fourth direction in a direction away from the glove box body 200 to form a third direction. In this way, when the first ejector rod 113 drives the first inclined ejector 11 along the fourth direction, the first inclined ejector 11 can move along the third direction and gradually disengage from the outside of the glove box body 200.

[0039] Specifically, multiple first inclined tops 11 and second guide rails 161 can be arranged at intervals along the width direction of the first inclined tops 11 to improve driving stability. For example, combined with Figure 6 In the width direction of the first inclined top 11, three first top rods 113 are arranged at equal intervals, and one second guide rail 161 is set on each of the opposite sides of the width direction of the first inclined top 11 to improve the guiding effect of the second guide rail 161 on the first inclined top 11.

[0040] Combination Figure 13 According to a specific embodiment of the demolding mechanism of the present invention, the first inclined top 11 includes a first plate portion 11a, a second plate portion 11b, a third plate portion 11c, and a bottom plate 11d. The first plate portion 11a, the second plate portion 11b, the third plate portion 11c, and the bottom plate 11d enclose a receiving cavity 110. The first plate portion 11a and the bottom plate 11d are connected. The second plate portion 11b is connected between the first plate portion 11a and the bottom plate 11d. The third plate portion 11c is connected between the first plate portion 11a and the bottom plate 11d. In the width direction of the first inclined top 11, the second plate portion 11b and the third plate portion 11c are located on opposite sides of the first plate portion 11a and the bottom plate 11d. A recess 111, a first sliding groove 101, and multiple through grooves 103 are provided on the first plate portion 11a. A second sliding groove 102 is provided on the bottom plate 11d. The edge of the bottom plate 11d is provided with a mounting groove 106, which is used to connect the second part 152 of the limiting member 15, thereby improving the compactness of the structure. A third sliding groove 104 is provided on both the second plate portion 11b and the third plate portion 11c, and a second guide rail 161 is provided on the third sliding groove 104.

[0041] Combination Figure 6 In some embodiments of the present invention, the moving mold 10 includes a first guide block 114, which is connected to the end of the first push rod 113. The first inclined push rod 11 has a third guide rail 112 extending along a fifth direction. The first guide block 114 is slidably connected to the third guide rail 112. The fifth direction has an angle with the fourth and third directions.

[0042] In other words, at the connection between the first ejector rod 113 and the first inclined ejector 11, the guide block and the guide rail slide together, thereby converting the linear motion of the first ejector rod 113 into the composite demolding motion of the first inclined ejector 11. This helps to improve the smoothness and controllability of the driving force transmission. Specifically, when the first guide block 114 is engaged with the third guide rail 112 along the fifth direction, it provides freedom for the movement of the first inclined ejector 11, which can prevent the first inclined ejector 11 from jamming or deviating due to uneven force. Especially when ejecting a relatively close undercut, the engagement of the first guide block 114 and the third guide rail 112 can assist in ejection and prevent damage to the product.

[0043] In some embodiments of the present invention, the displacement vectors of the first push rod 113, the first guide block 114, and the first inclined push rod 11 are connected end to end to form a closed triangle. Specifically, there is an angle between the third direction and the fourth direction, an angle between the fourth direction and the fifth direction, and an angle between the fifth direction and the third direction. The third direction, the fourth direction, and the fifth direction form a triangle, which allows the linear motion of the first push rod 113 to be smoothly transformed into the lateral disengagement action of the first inclined push rod 111 when the first push rod 113 drives the first inclined push rod 11. The structure is also relatively compact, which helps to save space.

[0044] Combination Figure 11 According to a specific embodiment of the present invention, line segment ab is a third direction, line segment bc is a fourth direction, and line segment ac is a fifth direction. The angle between the third and fourth directions is the angle α1 between ab and bc, where α1 is 18°. The angle between the third and fifth directions is the angle α2 between ab and ac, where α2 is 101°. The angle between the fourth and fifth directions is the angle α3 between bc and ac, where α3 is 61°.

[0045] In practical applications, the angle of the above-mentioned included angle can be set according to the specific shape of the glove box body 200.

[0046] Combination Figure 5 In some embodiments of the present invention, the moving mold 10 includes a second inclined ejector 17, a second ejector rod 172 and a fourth guide rail 162 extending along a sixth direction. The second inclined ejector 17 is slidably connected to the fourth guide rail 162. The second ejector rod 172 is connected to the second inclined ejector 17 and drives the second inclined ejector 17 to move along the sixth direction along the fourth direction. The sixth direction and the fourth direction have an angle.

[0047] Specifically, the moving mold 10 also includes a second inclined ejector 17 for forming other outer surfaces of the glove box body 200. The second inclined ejector 17 can be located on one side of the outer surface of the glove box body 200 that extends vertically, making demolding easier. For example, the second inclined ejector 17 can be located on the side opposite to the first inclined ejector 11.

[0048] Specifically, when the second ejector rod 172 drives the second inclined ejector 17 in the fourth direction, the fourth guide rail 162 can guide the second inclined ejector 17 to move in the sixth direction, thereby realizing the demolding of the second inclined ejector 17 in the predetermined direction.

[0049] Combination Figure 6 In some embodiments of the present invention, the moving mold 10 includes a second guide block 173, and the second inclined top 17 is provided with a fifth guide rail 171 extending along the seventh direction. The second guide block 173 is slidably connected to the fifth guide rail 171, and the seventh direction has an angle with both the sixth and fourth directions.

[0050] In other words, at the connection between the second ejector rod 172 and the second inclined ejector 17, the guide block and guide rail slide together, thereby converting the linear motion of the second ejector rod 172 into the composite demolding motion of the second inclined ejector 17. This helps to improve the smoothness and controllability of the driving force transmission. Specifically, when the second guide block 173 is engaged with the fifth guide rail 171 along the seventh direction, it provides freedom for the movement of the second inclined ejector 17, preventing the second inclined ejector 17 from jamming or shifting due to uneven force. Especially when ejecting a relatively close undercut, the engagement of the second guide block 173 and the fifth guide rail 171 can assist in ejection and prevent damage to the product.

[0051] In some embodiments of the present invention, the displacement vectors of the second push rod 172, the second guide block 173, and the second inclined push rod 17 are connected end to end, forming a closed triangle. Specifically, there is an angle between the fourth direction and the sixth direction, an angle between the seventh direction and the fourth direction, and an angle between the seventh direction and the sixth direction. The seventh direction, the fourth direction, and the sixth direction form a triangle, thereby smoothly transforming the linear motion of the second push rod 172 into the lateral disengagement action of the second inclined push rod 17 when the second push rod 172 drives the second inclined push rod 17. The structure is also more compact, which helps to save space.

[0052] Combination Figure 12 According to a specific embodiment of the present invention, line segment de is the fourth direction, line segment ef is the sixth direction, and line segment df is the seventh direction. The angle between the fourth and sixth directions is the angle α4 between de and ef, where α4 is 19°. The angle between the fourth and seventh directions is the angle α5 between de and df, where α5 is 89°. The angle between the sixth and seventh directions is the angle α6 between ef and df, where α6 is 72°.

[0053] In practical applications, the angle of the above-mentioned included angle can be set according to the specific shape of the glove box body 200.

[0054] Combination Figure 1 and Figure 3In some embodiments of the present invention, the moving mold 10 further includes a third inclined ejector 18 and a fourth inclined ejector 19, which are located on the other two sides of the glove box body 200. Thus, the first inclined ejector 11, the second inclined ejector 17, the third inclined ejector 18, and the fourth inclined ejector 19 surround the four sides of the glove box body 200, forming the shape of the outer side of the glove box body 200. Since the structure of the other sides of the glove box body 200 is relatively flat, the third inclined ejector 18 and the fourth inclined ejector 19 can be directly ejected along a straight line.

[0055] Furthermore, the moving mold 10 also includes an ejector pin suitable for driving the third inclined ejector 18, as well as a guide block and guide rail structure that facilitates the compound demolding motion of the third inclined ejector 18; the moving mold 10 also includes an ejector pin suitable for driving the fourth inclined ejector 19, as well as a guide block and guide rail structure that facilitates the compound demolding motion of the fourth inclined ejector 19. Since the demolding methods of the third inclined ejector 18 and the fourth inclined ejector 19 are similar to those of the second inclined ejector 17, they will not be described in detail here.

[0056] Combination Figure 1 and Figure 2 In some embodiments of the present invention, the fixed mold includes a locking block 21, which is located between the fixed mold and the moving mold 10. This locking block 21 can ensure that the slider cylinder 14 will not be forcibly pulled open at the moment of mold opening. In the mold closing state, the shovel can firmly lock the slider cylinder 14 on the first inclined ejector 11 to withstand the impact of injection pressure. In the initial stage of mold opening, it disengages from the inclined surface of the second slider 13, releasing the mechanical locking and preparing for the movement of the second slider 13.

[0057] The demolding mechanism of a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0058] In related technologies, in injection mold design, large and complex components such as glove boxes are often limited to the traditional main demolding direction, resulting in a large mold volume, restricted cavity arrangement, and the need for a larger mold base and more steel to accommodate the core-pulling structure. Current technologies generally achieve demolding by optimizing the product placement angle or using lateral parting mechanisms such as angled ejectors or sliders, but this significantly increases mold complexity and manufacturing costs. Glove box products require an opening design in the flipping hinge area to allow for smooth core pulling by the side angled ejectors. This can be avoided in the structural design. The overall mold is surrounded by angled ejectors on all four sides, resulting in a complex structure that demands high skill from mold fitters. The complexity also limits the mold's cooling space, necessitating the use of better cooling steel for the mold.

[0059] Combination Figures 1 to 14This invention discloses a method for reducing the cost and equipment requirements of automotive glove box injection molds by optimizing the main demolding direction. The core of this method lies in breaking away from the conventional approach of directly determining the demolding direction based on the product's installation state. Instead, it actively seeks a new demolding direction that minimizes the overall mold volume through the projection contour of a three-dimensional model and spatial analysis. Based on this optimized direction (such as...), Figure 16 The demolding direction of the glove box body shown in the related technology) requires redesigning the cavity layout of the mold (such as...). Figure 15 The glove box body 200 of this application, as shown in the demolding direction, slider, and lateral core-pulling mechanism, makes the mold structure more compact while meeting functional requirements. This method can directly reduce the length, width, and height dimensions of the mold, saving a significant amount of mold steel. Simultaneously, the reduced mold projection area and opening stroke allow it to be adapted to injection molding machines with smaller tonnage and smaller tie rod spacing, thereby significantly reducing equipment investment and production energy consumption, achieving cost savings across the entire chain from mold manufacturing to product production.

[0060] The core innovation of this technology lies in transforming the main demolding direction from a fixed constraint into an optimizable design variable. Through systematic analysis of the product's 3D model, the optimal demolding direction is redefined with the direct objective of minimizing the mold's length, width, and projected area. It creatively integrates mold positioning, core-pulling structure, and injection molding machine parameters such as tie rod spacing and mold capacity through simulation, ensuring that the new direction achieves mold miniaturization while fully adapting to the installation requirements of smaller tonnage injection molding machines. The outstanding advantages of this method are: significantly reduced mold steel consumption, directly lowering mold manufacturing costs; and the ability to install the mold on smaller tonnage injection molding machines, saving on equipment investment, energy consumption, and floor space.

[0061] This technical solution overturns the previous mold ejection direction, seeking a primary demolding direction that achieves the most compact mold cavity layout and the smallest overall outline size. Subsequently, based on this new direction, a detailed mold structure design is carried out, optimizing the slider structure and the inclined ejector mechanism. Finally, the key parameters of the new mold, such as its external dimensions, mold opening stroke, and required clamping force, are precisely matched and calculated with the tie rod spacing, maximum mold capacity, and tonnage specifications of injection molding machines using relevant technologies. This allows for the selection of smaller injection molding machines for production, achieving the dual goals of saving mold steel and reducing the tonnage requirements of injection molding machines.

[0062] In summary, the demolding mechanism according to the embodiments of the present invention reduces the overall size of the mold frame and the consumption of mold steel by changing the demolding direction of the glove box 200; this mold design enables it to complete production on injection molding machines with smaller tonnage and mold plate size, saving equipment occupation and energy consumption.

[0063] The demolding method of a demolding mechanism according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0064] Step 1: Mold opening and first core pulling (driven by slide cylinder 14) 1. Mold Opening and Lock Release: The injection molding machine pulls the moving mold 10 back, and the mold opens from the parting surface. In the mold closed state, the shovel firmly locks the slider cylinder 14 on the inclined ejector, bearing the impact of the injection pressure. In the initial stage of mold opening, it disengages from the inclined surface of the slider, releasing the mechanical lock and preparing for the slider movement.

[0065] 2. The slider cylinder 14 drives the second slider 13 to pull the core: The control system sends a signal, and the hydraulic cylinder installed on the first inclined top 11 body begins to operate.

[0066] The slider cylinder 14 can drive the first slider 12. At the undercut portion of the forming ribs in the glove box body 200, the first slider 12 moves laterally or in a first direction along the first guide rail 131 at the top of the first inclined top 11. At this time, the first inclined top 11 remains stationary (because the first push rod 113 is not activated). This action achieves the "movement of the first slider 12 on the first inclined top 11," i.e., the first core pulling. After the slider cylinder 14 moves to its position, all lateral undercuts at the dense rib positions at the top of the glove box body 200 or the product have completely disengaged from the slider insert or the second slider 13.

[0067] 3. Mold opening complete: As the moving mold 10 continues to retract, the mold is fully opened. At this time, although the glove box body 200 or the product is still covered by the first inclined ejector 11 of the moving mold 10, the most difficult side undercuts to demold have been cleared, leaving only the product's clamping force and simple rib obstruction.

[0068] Step 2: Ejection and second demolding (hydraulic cylinder driven) The ejector cylinder drives the ejector mechanism, and the combined motion of the inclined ejector forces the product out of the core.

[0069] 1. Ejector cylinder start: The injection molding machine ejector roller or independent ejector cylinder pushes the first ejector rod 113 upward.

[0070] 2. First inclined ejector 11 oblique movement: Since the bottom of the first inclined ejector 11 is installed on the first guide block 114 of the first ejector rod 113, as the first ejector rod 113 rises vertically, the first inclined ejector 11 is forced to make oblique linear movement along the second guide rail 161 on the mold. In this oblique movement, the first inclined ejector 11 pushes upward on one hand and moves towards the center (or outside) of the mold on the other hand, gradually separating from the main body of the product.

[0071] 3. Completion of the compound motion: During the oblique movement of the first inclined ejector 11, it is important to note that the first slider 12, which had already retracted during the first core pulling, remains in its retracted state and moves with the first inclined ejector 11. Since the first slider 12 has retracted, it will no longer hook onto the product's ribs while moving with the first inclined ejector 11, thus achieving interference-free demolding. After ejection, the product is completely detached from the moving mold 10 and can be removed by gravity or a robotic arm.

[0072] 4. The second inclined ejector 17 moves obliquely: Since the bottom of the second inclined ejector 17 is installed on the second guide block 173 of the second ejector rod 172, as the second ejector rod 172 rises vertically, the second inclined ejector 17 is forced to make an oblique linear motion along the fourth guide rail 162 on the mold. In this oblique motion, the second inclined ejector 17 pushes upward on one hand and moves towards the center (or the outside) of the mold on the other hand, gradually separating from the main body of the product.

[0073] Only after all moving parts have returned to their original positions can the mold be safely closed and the next injection begin.

[0074] The key parameters of the demolding mechanism according to a specific embodiment of the present invention are as follows: Clamping force: With the reduced projected area of ​​the new mold, the required clamping force has been reduced from 1400 tons to 650 tons.

[0075] Tie rod spacing: The new mold is 870mm wide and 896mm high, and can be easily placed into a 650-ton machine (its tie rod spacing is usually greater than 1000×1000mm).

[0076] Mold capacity: The total height of the new mold is 896mm, which is within the maximum allowable mold thickness range of a 650-ton machine.

[0077] Mold opening stroke: The mold opening stroke required for the new structure has been verified through simulation and meets the specifications of a 650-ton machine.

[0078] Final matching: It was confirmed that the optimized mold is fully compatible with the 650-ton injection molding machine. Compared with the 1400-ton machine in related technologies, the equipment procurement cost, power consumption and floor space are significantly reduced.

[0079] In the description of this invention, it should be understood that the terms "center", "length", "width", "upper", "lower", "front", "rear", "vertical", "horizontal", "bottom", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0080] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0081] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0082] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A demolding mechanism for an automotive glove box body, characterized in that, include: A fixed mold having protrusions for constructing the inner surface of the glove box body (200); A moving mold (10) is detachably connected to the fixed mold. The moving mold (10) is used to construct the outer surface of the glove box body (200). When the moving mold (10) is separated from the fixed mold, the protrusion is dislodged from the glove box body (200).

2. The demolding mechanism for the automotive glove box body according to claim 1, characterized in that, The moving model (10) includes: A first inclined top (11) is provided with a recess (111) and a first groove (101) extending along a first direction, one end of the recess (111) being connected to the first groove (101); A first slider (12) has a first position and a second position. In the first position, the first slider (12) is disposed in the recess (111), and in the second position, the first slider (12) is disposed in the first groove (101).

3. The demolding mechanism for the automotive glove box body according to claim 2, characterized in that, The moving mold (10) includes a second slider (13), which is provided with an inclined first guide rail (131). The first slider (12) is slidably connected to the first guide rail (131). The second slider (13) is configured to guide the first slider (12) to move along a first direction when it moves along a second direction. The first direction and the second direction have an angle.

4. The demolding mechanism for the automotive glove box body according to claim 3, characterized in that, The second slider (13) is provided with a plurality of positioning ribs extending along the second direction, and the first inclined top (11) is provided with a plurality of through grooves (103), and the positioning ribs pass through the through grooves (103); And / or the first inclined top (11) is provided with a second slide groove (102), and the second slider (13) is slidably connected to the second slide groove (102).

5. The demolding mechanism for the automotive glove box body according to claim 3, characterized in that, The moving mold (10) includes a slider cylinder (14) adapted to drive the second slider (13) to move along the second direction.

6. The demolding mechanism for the automotive glove box body according to claim 5, characterized in that, The moving mold (10) includes a limiting member (15), which includes a first part (151) and a second part (152). The first part (151) is provided with a limiting groove (105). The connecting end of the slider cylinder (14) passes through the limiting groove (105) and is connected to the second slider (13). The second part (152) is fixedly connected to the first inclined top (11) along the second direction.

7. The demolding mechanism for the automotive glove box body according to claim 2, characterized in that, The moving mold (10) includes a first ejector rod (113) and a second guide rail (161) extending along a third direction. The first inclined ejector (11) is slidably connected to the second guide rail (161). The first ejector rod (113) is connected to the first inclined ejector (11) and drives the first inclined ejector (11) to move along the third direction in a fourth direction. The fourth direction and the third direction both have an angle.

8. The demolding mechanism for the automotive glove box body according to claim 7, characterized in that, The moving mold (10) includes a first guide block (114), which is connected to the end of the first push rod (113). The first inclined push rod (11) has a third guide rail (112) extending along the fifth direction. The first guide block (114) is slidably connected to the third guide rail (112). The third direction has an angle with both the fourth and fifth directions.

9. The demolding mechanism for the automotive glove box body according to claim 8, characterized in that, The displacement vectors of the first push rod (113), the first guide block (114), and the first inclined push rod (11) are connected end to end to form a closed triangle.

10. The demolding mechanism for the automotive glove box body according to claim 1, characterized in that, The moving mold (10) includes a second inclined ejector (17), a second ejector rod (172), and a fourth guide rail (162) extending along a sixth direction. The second inclined ejector (17) is slidably connected to the fourth guide rail (162). The second ejector rod (172) is connected to the second inclined ejector (17) and drives the second inclined ejector (17) to move along the sixth direction along the fourth direction. The sixth direction has an angle with the fourth direction.

11. The demolding mechanism for the automotive glove box body according to claim 10, characterized in that, The moving mold (10) includes a second guide block (173), and the second inclined top (17) is provided with a fifth guide rail (171) extending along the seventh direction. The second guide block (173) is slidably connected to the fifth guide rail (171), and the seventh direction has an angle with the sixth direction and the fourth direction.

12. The demolding mechanism for the automotive glove box body according to claim 11, characterized in that, The displacement vectors of the second push rod (172), the second guide block (173), and the second inclined push rod (17) are connected end to end to form a closed triangle.

13. The demolding mechanism for the automotive glove box body according to claim 1, characterized in that, The fixed mold includes a locking block (21), which is located between the fixed mold and the moving mold (10).

Images