One-time injection molding mold for back plate of car trunk

Abstract

The utility model relates to a car trunk backboard one-time injection molding mold which comprises an upper mold base and a lower mold base, a mounting base is arranged on the face, away from the lower mold base, of the upper mold base, a female mold core is arranged on the face, close to the upper mold base, of the lower mold base, a sub-mold core is arranged on the face, close to the female mold core, of the upper mold base, and a runner opening is formed in the mounting base; a plurality of sliding seats are arranged on the mounting seat, the guide assembly comprises sliding blocks, connecting rods and guide blocks, the sliding blocks are arranged on the sliding seats in a sliding mode, the connecting rods penetrate through the sliding blocks, and the guide blocks are arranged at the ends, away from the sliding blocks, of the connecting rods; a plurality of vertical grooves and transverse grooves are formed in one face of the guide block, the driving source drives the connecting rod to slide, and the connecting block slides to drive the guide block to slide in the direction opposite to the face where the vertical grooves and the transverse grooves are formed. The luggage case back plate has the advantages that the weight of the luggage case back plate is reduced, production of the luggage case back plate is facilitated, and cost is reduced.

Description

Technical Field

[0001] This application relates to the field of automotive mold technology, and in particular to a one-time injection molding mold for an automotive trunk back panel. Background Technology

[0002] Automotive molds are specialized tools used in the mass production of automotive parts during the automobile manufacturing process. Their design and manufacturing level directly affects the precision, quality, and production efficiency of automotive parts. As a core process equipment in the modern automotive industry, molds are widely used in the molding and processing of body panels, interior parts, engine components, and functional parts.

[0003] Common car trunk back panels are usually formed by stamping with molds. The structure of trunk back panels is often quite complex. When it is necessary to reduce the weight of the guide blocks around the trunk back panel, injection molding can reduce the weight of the trunk back panel, but at the same time, the mold is not easy to demold, so the mold cannot be injection molded in one go. Subsequent lightweighting of the trunk back panel requires multiple processes, making the production of trunk back panels inconvenient and costly. Utility Model Content

[0004] To reduce the weight of the trunk back panel, facilitate its production, and reduce costs, this application provides a one-time injection molding mold for an automotive trunk back panel.

[0005] This application provides a one-time injection molding mold for a car trunk back panel, which adopts the following technical solution:

[0006] A one-time injection molding mold for a car trunk back panel includes an upper mold base and a lower mold base, which are connected sequentially from top to bottom. A mounting base is provided on the side of the upper mold base away from the lower mold base. A female mold core is provided on the side of the lower mold base near the upper mold base. A female mold core is provided on the side of the upper mold base near the female mold core. A mold cavity is formed between the female mold core and the female mold core, and the product is formed within the mold cavity. A runner is provided on the mounting base, which connects to the female mold core. Several sliding seats are provided on the mounting base. A guide assembly is also included, circumferentially arranged around the product. The guide assembly includes a slider, a connecting rod, and a guide block. The slider is slidably mounted on the sliding seat. The connecting rod passes through the slider. The guide block is located at the end of the connecting rod away from the slider. Several vertical and horizontal grooves are formed on one side of the guide block. A drive source is also included. The drive source drives the connecting rod to slide, and the sliding of the connecting block causes the guide block to slide in a direction opposite to the side with the vertical and horizontal grooves.

[0007] By adopting the above technical solution, when the luggage back panel needs to be injection molded, the mold is closed, and the female mold core on the upper mold base and the female mold core on the lower mold base form a mold cavity. The product is injection molded in the mold cavity. After the product is injection molded and fully cooled, the drive source drives the connecting rod to slide, so that the guide block slides in a direction away from the side with the vertical and horizontal grooves. The horizontal and vertical grooves make the product form a groove, which reduces the weight and allows the product to be demolded. This facilitates the reduction of the weight of the luggage back panel, facilitates the production of the luggage back panel, and reduces costs.

[0008] Optionally, a reinforcing plate is provided on the side of the guide block near the center of the mold cavity.

[0009] By adopting the above technical solution, the strength of the guide block is improved by reinforcing the sheet, while the reinforcing sheet is relatively lightweight.

[0010] Optionally, an insert block is provided at the end of the guide block away from the connecting rod.

[0011] By adopting the above technical solution, the insert block facilitates the insertion and installation of the molded product.

[0012] Optionally, the female mold core is provided with a protrusion, the female mold core is provided with a receiving groove for accommodating the protrusion, the bottom of the receiving groove is provided with a plurality of forming blocks, and the protrusion is provided with a plurality of forming grooves for accommodating the forming blocks, and the forming blocks and forming grooves correspond one-to-one.

[0013] By adopting the above technical solution, the protrusion changes the shape of the product structure, and the molding block and molding groove facilitate the installation of the car trunk back panel.

[0014] Optionally, the female mold core is provided with an installation block, the installation block is provided with a protrusion, the male mold core is provided with an installation groove for the installation block to be accommodated, and the bottom of the installation groove is provided with a limiting groove for the protrusion to be accommodated.

[0015] By adopting the above technical solution, the installation of the luggage back panel is made easier and more accurate through the use of mounting blocks and protrusions.

[0016] Optionally, the protrusion is provided with a snap-fit ​​groove in the circumferential direction, and a plurality of snap-fit ​​blocks are provided on the edge of the groove opening of the receiving groove, and the snap-fit ​​groove is for the snap-fit ​​blocks to be received.

[0017] By adopting the above technical solution, the mold makes it easy to snap and position the protrusions on the back panel of the formed car trunk through the snap-fit ​​block and snap-fit ​​groove, and the protrusions are firmly installed.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. By driving the connecting rod to slide through the drive source, the guide block slides in a direction away from the side with the vertical and horizontal grooves, forming a groove in the product, reducing weight, and allowing the product to be demolded. This facilitates the reduction of weight of the luggage back panel, making the production of the luggage back panel easier and reducing costs.

[0020] 2. Reinforcing plates improve the strength of the guide blocks;

[0021] 3. The protrusions change the shape of the product, and the molded blocks facilitate the installation of the car trunk back panel. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a one-time injection molding mold for the back panel of a car trunk, according to an embodiment.

[0023] Figure 2 This is a schematic diagram of the lower mold base in an embodiment.

[0024] Figure 3 This is a schematic diagram of the upper mold base and mounting base in an embodiment.

[0025] Figure 4 yes Figure 2 A magnified view of a portion at point A.

[0026] Figure 5 This is a schematic diagram of the structure of a car trunk back panel formed by a one-time injection molding mold, according to an embodiment.

[0027] Figure 6 This is a partial structural schematic diagram of a one-time injection molding mold for a car trunk back panel, according to an embodiment.

[0028] Figure 7 yes Figure 6 A magnified view of a portion of point B.

[0029] Figure 8 This is a partial structural schematic diagram of the cylinder and guide assembly in an embodiment.

[0030] Explanation of reference numerals in the attached drawings: 1. Lower mold base; 2. Upper mold base; 3. Mounting base; 41. Runner; 42. Female mold core; 43. Female mold core; 44. Sliding seat; 45. Reinforcing plate; 46. Insert block; 5. Guide assembly; 51. Slider; 52. Connecting rod; 53. Guide block; 61. Vertical groove; 62. Horizontal groove; 7. Drive source; 71. Cylinder; 81. Protrusion; 82. Receiving groove; 83. Molding block; 84. Molding groove; 85. Mounting block; 86. Mounting groove; 87. Snap-fit ​​groove; 88. Snap-fit ​​block; 91. Groove; 92. Protrusion; 93. Limiting groove. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] This application discloses a one-time injection molding mold for a car trunk back panel. (Refer to...) Figures 1-4 A one-time injection molding mold for a car trunk back panel includes an upper mold base 2 and a lower mold base 1, which are connected sequentially from top to bottom. A mounting base 3 is provided on the side of the upper mold base 2 away from the lower mold base 1. A female mold core 42 is fixed on the side of the lower mold base 1 near the upper mold base 2, and a female mold core 43 is fixed on the side of the upper mold base 2 near the female mold core 42. The female mold core 42 and the female mold core 43 are mated to each other. A runner 41 is provided on the mounting base 3, and the runner 41 connects to the interior of the female mold core 43.

[0033] Reference Figures 2-7 A mounting base 3 is fixed with several sliding seats 44. A one-time injection molding mold for a car trunk back panel also includes a guide assembly 5 circumferentially arranged around the product. The guide assembly 5 includes a slider 51, a connecting rod 52, and a guide block 53. The slider 51 is slidably connected to the sliding seats 44. The connecting rod 52 passes through the slider 51. The guide block 53 is fixed to the end of the connecting rod 52 away from the slider 51. A reinforcing plate 45 is fixed to the side of the guide block 53 near the center of the mold cavity. An insert block 46 is fixed to the end of the guide block 53 away from the connecting rod 52. Several vertical grooves 61 and horizontal grooves 62 are formed on one side of the guide block 53.

[0034] Reference Figures 5-8 A one-time injection molding mold for a car trunk back panel also includes a drive source 7, which is a cylinder 71. The cylinder 71 draws in air to slide the connecting rod 52. The cylinder 71 drives the connecting rod 52 to slide, and the sliding of the connecting block causes the guide block 53 to slide in a direction opposite to the vertical groove 61 and horizontal groove 62. The horizontal groove 62 and the vertical groove 61 form a groove 91 in the trunk back panel, and the guide block 53 has reinforcing ribs inside, so as to achieve the effect of product lightweighting while ensuring its strength. Car lightweighting is to reduce the curb weight of the car as much as possible while ensuring the strength and safety performance of the car, thereby improving the car's power, reducing fuel consumption, and reducing exhaust pollution.

[0035] Reference Figures 1-5 The female mold core 42 has a protrusion 81 fixed on it. The male mold core 43 has a receiving groove 82 for receiving the protrusion 81. Several forming blocks 83 are fixed at the bottom of the receiving groove 82. Several forming grooves 84 are formed on the protrusion 81 for receiving the forming blocks 83. The forming blocks 83 and forming grooves 84 correspond one-to-one. The female mold core 42 is provided with an installation block 85. The installation block 85 is provided with a protrusion 92. The male mold core 43 has an installation groove 86 for receiving the installation block 85. The bottom of the installation groove 86 has a limiting groove 93 for receiving the protrusion 92. The protrusion 81 has a snap-fit ​​groove 87 circumferentially formed. Several snap-fit ​​blocks 88 are fixed at the edge of the groove opening of the receiving groove 82. The snap-fit ​​groove 87 is used to receive the snap-fit ​​blocks 88.

[0036] The implementation principle of a one-time injection molding mold for a car trunk back panel in this application embodiment is as follows: When the trunk back panel mold needs to be injection molded, the mold is installed in the injection molding machine, and the injection material enters the sub-mold core 43 through the runner 41. The mold closes to form the product. After the product is formed and fully cooled, the cylinder 71 drives the connecting rod 52 to slide, so that the guide block 53 slides in a direction away from the side with the vertical groove 61 and horizontal groove 62. This causes the guide block 53 to slide out of the edge of the formed trunk back panel. The horizontal groove 62 and the vertical groove 61 form a groove 91 in the trunk back panel, which reduces the weight of the guide block 53 while maintaining its strength and allowing the product to be demolded. The weight of the trunk back panel is reduced, which facilitates the production of the trunk back panel and reduces costs.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A one-time injection molding mold for a car trunk back panel, comprising an upper mold base (2) and a lower mold base (1), characterized in that: The upper mold base (2) and the lower mold base (1) are connected sequentially from top to bottom. The side of the upper mold base (2) away from the lower mold base (1) is provided with a mounting base (3). The side of the lower mold base (1) close to the upper mold base (2) is provided with a female mold core (42). The side of the upper mold base (2) close to the female mold core (42) is provided with a female mold core (43). The female mold core (42) and the female mold core (43) form a mold cavity, and the product is formed in the mold cavity. The mounting base (3) is provided with a runner (41) that connects to the female mold core (43). The mounting base (3) is provided with several sliding seats (44) and also includes circumferentially arranged... The guide assembly (5) around the product includes a slider (51), a connecting rod (52), and a guide block (53). The slider (51) is slidably disposed on a sliding seat (44). The connecting rod (52) passes through the slider (51). The guide block (53) is disposed at the end of the connecting rod (52) away from the slider (51). The guide block (53) has several vertical grooves (61) and horizontal grooves (62) on one side. It also includes a drive source (7). The drive source (7) drives the connecting rod (52) to slide. The sliding of the connecting block causes the guide block (53) to slide in a direction opposite to the side with the vertical grooves (61) and horizontal grooves (62).

2. The one-time injection molding mold for a car trunk back panel according to claim 1, characterized in that: The guide block (53) has a reinforcing plate (45) on the side near the center of the mold cavity.

3. The one-time injection molding mold for a car trunk back panel according to claim 1, characterized in that: An insert (46) is provided at the end of the guide block (53) away from the connecting rod (52).

4. The one-time injection molding mold for a car trunk back panel according to claim 1, characterized in that: The female mold core (42) is provided with a protrusion (81), and the female mold core (43) is provided with a receiving groove (82) for the protrusion (81) to be accommodated. The bottom of the receiving groove (82) is provided with a plurality of forming blocks (83), and the protrusion (81) is provided with a plurality of forming grooves (84) for the forming blocks (83) to be accommodated. The forming blocks (83) and the forming grooves (84) correspond one-to-one.

5. The one-time injection molding mold for a car trunk back panel according to claim 1, characterized in that: The female mold core (42) is provided with an installation block (85), the installation block (85) is provided with a protrusion (92), the female mold core (43) is provided with an installation groove (86) for the installation block (85) to be accommodated, and the bottom of the installation groove (86) is provided with a limiting groove (93) for the protrusion (92) to be accommodated.

6. The one-time injection molding mold for a car trunk back panel according to claim 4, characterized in that: The protrusion (81) has a snap-fit ​​groove (87) circumferentially open, and the receiving groove (82) has a plurality of snap-fit ​​blocks (88) arranged along the edge of the groove opening, and the snap-fit ​​groove (87) is for the snap-fit ​​blocks (88) to be received.

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