Low-temperature-resistant impact-resistant commercial vehicle bumper injection mold

Abstract

The utility model provides low temperature resistant impact resistant commercial vehicle bumper injection mold, including bottom plate, the inside of forming inner chamber is provided with from inside to outside forming inner layer, forming middle layer and forming outer layer, the outside of forming outer layer is provided with annular reinforcing rib, is provided with a plurality of horizontal reinforcing rib between annular reinforcing rib and forming outer layer, the utility model forms the inner chamber by forming inner layer, forming middle layer and forming outer layer, the forming piece after injection moulding is by three -layer structure composition, the overall strength is higher, still is provided with annular reinforcing rib, horizontal reinforcing rib and oblique reinforcing rib on the outside of forming outer layer, can form a plurality of reinforcing rib through annular reinforcing rib and horizontal reinforcing rib on the outside of injection -moulded part, to strengthen the strength of bumper outside, thereby improve the ability of bumper impact resistance, be provided with a plurality of protective blocks in the inside of forming inner layer, in this way, can inject a protective area in the central area of bumper, thereby when the bumper is abraded, can be protected through the protective block.

Description

Technical Field

[0001] This utility model belongs to the field of bumper technology and relates to low-temperature resistant and impact-resistant commercial vehicle bumper injection molds. Background Technology

[0002] Plastic bumpers are important components of automobiles, combining strength, rigidity, and aesthetics. From a safety perspective, bumpers can act as a buffer in the event of a collision, protecting the front and rear of the vehicle. From an aesthetic perspective, bumpers can be seamlessly integrated with the vehicle body, becoming an important part of the car's exterior design.

[0003] In the existing technology, car bumpers are generally integrally formed in an injection mold using injection molding technology. However, the traditional bumper structure does not have any protective or reinforcing structures on the outside, which makes the bumper easy to wear when it is hit. If the impact is large, the strength is insufficient and it is easy to break. Therefore, it needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a low-temperature resistant and impact-resistant injection mold for commercial vehicle bumpers, in order to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions: A low-temperature resistant and impact-resistant commercial vehicle bumper injection mold includes a base plate, a lower mold base, an upper mold base, and a panel. The lower mold base is supported at the top of the base plate by side pillars. An inner molding seat is provided inside the lower mold base. The upper mold base is located at the top of the lower mold base, and a molding cavity is opened inside the upper mold base. The molding cavity is provided with an inner molding layer, a middle molding layer, and an outer molding layer from the inside to the outside. An annular reinforcing rib is provided on the outer side of the outer molding layer, and multiple transverse reinforcing ribs are provided between the annular reinforcing rib and the outer molding layer.

[0006] In the aforementioned low-temperature resistant and impact-resistant commercial vehicle bumper injection mold, an oblique reinforcing rib is provided on the outer side of the annular reinforcing rib, and one end of the oblique reinforcing rib extends to the corner of the molding cavity.

[0007] In the aforementioned low-temperature resistant and impact-resistant commercial vehicle bumper injection mold, multiple protective blocks are provided at the bottom of the molded inner layer, and the multiple protective blocks form a strip-shaped protective area inside the molded inner layer.

[0008] In the aforementioned low-temperature resistant and impact-resistant commercial vehicle bumper injection mold, a reinforcing connecting plate is provided at the corner of the molded middle layer, and the inner end of the reinforcing connecting plate is connected to the molded inner layer.

[0009] In the aforementioned low-temperature resistant and impact-resistant commercial vehicle bumper injection mold, a top plate is provided at the top of the base plate, and multiple push rods are provided at the top of the top plate, with the top of the push rods placed inside the lower mold base.

[0010] In the aforementioned low-temperature resistant and impact-resistant commercial vehicle bumper injection mold, a sprue plate is provided at the top of the upper mold base, a panel is provided at the top of the sprue plate, and a sprue gate is provided at the middle of the panel.

[0011] Compared with existing technologies, the advantages of this utility model of a low-temperature resistant and impact-resistant commercial vehicle bumper injection mold are: This application improves the molding cavity inside the upper mold base, which consists of an inner molding layer, a middle molding layer, and an outer molding layer. This results in a three-layer structure for the molded part after injection molding, leading to higher overall strength. The outer molding layer also features annular, transverse, and diagonal reinforcing ribs. These ribs form multiple reinforcing ribs on the outside of the injection molded part, strengthening the outer edge of the bumper and improving its impact resistance. Multiple protective blocks are installed inside the inner molding layer, creating a protective area in the center of the bumper. These blocks protect the bumper from wear and tear, reducing the impact of wear on the bumper body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the low-temperature resistant and impact-resistant commercial vehicle bumper injection mold of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the lower mold base of the low-temperature resistant and impact-resistant commercial vehicle bumper injection mold of this utility model.

[0014] Figure 3 This is a schematic diagram of the internal structure of the upper mold base of the low-temperature resistant and impact-resistant commercial vehicle bumper injection mold of this utility model.

[0015] In the diagram, 1. Base plate; 2. Side support; 3. Top plate; 4. Ejector rod; 5. Lower mold base; 6. Upper mold base; 7. Sprue plate; 8. Panel; 9. Inlet gate; 10. Inner molding seat; 11. Molding cavity; 12. Inner molding layer; 13. Middle molding layer; 14. Outer molding layer; 15. Protective block; 16. Annular reinforcing rib; 17. Transverse reinforcing rib; 18. Diagonal reinforcing rib; 19. Reinforcing connecting plate. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] A low-temperature resistant and impact-resistant commercial vehicle bumper injection mold includes a base plate 1, a lower mold base 5, an upper mold base 6, and a panel 8. The lower mold base 5 is supported at the top of the base plate 1 by a side pillar 2. An inner molding seat 10 is provided inside the lower mold base 5. The upper mold base 6 is provided at the top of the lower mold base 5. A molding cavity 11 is opened inside the upper mold base 6. The molding cavity 11 is provided with an inner molding layer 12, a middle molding layer 13, and an outer molding layer 14 from the inside to the outside. An annular reinforcing rib 16 is provided on the outside of the outer molding layer 14. Multiple transverse reinforcing ribs 17 are provided between the annular reinforcing rib 16 and the outer molding layer 14.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, the low-temperature resistant and impact-resistant commercial vehicle bumper injection mold of this utility model has, specifically, an oblique reinforcing rib 18 provided on the outer side of the annular reinforcing rib 16, and one end of the oblique reinforcing rib 18 extends to the corner of the molding cavity 11.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the low-temperature resistant and impact-resistant commercial vehicle bumper injection mold of this utility model has multiple protective blocks 15 at the bottom of the molded inner layer 12, and the multiple protective blocks 15 form a strip-shaped protective area inside the molded inner layer 12.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, the low-temperature resistant and impact-resistant commercial vehicle bumper injection mold of this utility model has a reinforcing connecting plate 19 at the corner of the molding middle layer 13, and the inner end of the reinforcing connecting plate 19 is connected to the molding inner layer 12.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention relates to a low-temperature resistant and impact-resistant commercial vehicle bumper injection mold. Specifically, a top plate 3 is provided at the top of the base plate 1, and multiple ejector pins 4 are provided at the top of the top plate 3. The top of the ejector pins 4 is placed inside the lower mold base 5. The injection molded part cooled between the lower mold base 5 and the upper mold base 6 is ejected and demolded by the ejector pins 4.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention relates to a low-temperature resistant and impact-resistant commercial vehicle bumper injection mold. Specifically, a sprue plate 7 is provided at the top of the upper mold base 6, a panel 8 is provided at the top of the sprue plate 7, and a feed gate 9 is provided at the middle of the panel 8, through which material is fed.

[0023] This utility model relates to a low-temperature resistant and impact-resistant commercial vehicle bumper injection mold. It improves upon the traditional upper mold base 6's internal molding cavity 11, which consists of an inner molding layer 12, a middle molding layer 13, and an outer molding layer 14. The lower mold base 5 and upper mold base 6 are used to injection mold the bumper. This results in a molded part with a three-layer structure, leading to higher overall strength. The outer molding layer 14 also features annular reinforcing ribs 16, transverse reinforcing ribs 17, and diagonal reinforcing ribs 18. These ribs form multiple reinforcing ribs on the outer side of the molded part, strengthening the outer area of ​​the bumper and improving its impact resistance. Furthermore, the inner molding layer 12 contains multiple protective blocks 15. This allows for the injection molding of a raised protective area composed of these blocks in the center of the bumper. When the center of the bumper is worn, the protective blocks 15 provide protection, reducing the impact on the bumper body and protecting it.

[0024] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A low-temperature resistant and impact-resistant commercial vehicle bumper injection mold, comprising a base plate (1), a lower mold base (5), an upper mold base (6), and a panel (8), characterized in that, The bottom plate (1) is supported by a side pillar (2) at the top position of the bottom plate (1). The bottom plate (5) is provided with an inner forming seat (10). The bottom plate (5) is provided with an upper plate (6) at the top position of the bottom plate (5). The upper plate (6) is provided with a forming cavity (11). The forming cavity (11) is provided with a forming inner layer (12), a forming middle layer (13) and a forming outer layer (14) from the inside to the outside. The outer layer (14) is provided with an annular reinforcing rib (16) on the outside. Multiple transverse reinforcing ribs (17) are provided between the annular reinforcing rib (16) and the forming outer layer (14).

2. The low-temperature resistant and impact-resistant commercial vehicle bumper injection mold according to claim 1, characterized in that, An oblique reinforcing rib (18) is provided on the outer side of the annular reinforcing rib (16), and one end of the oblique reinforcing rib (18) extends to the corner of the molded inner cavity (11).

3. The low-temperature resistant and impact-resistant commercial vehicle bumper injection mold according to claim 1, characterized in that, The bottom of the molded inner layer (12) is provided with multiple protective blocks (15), and the multiple protective blocks (15) form a strip-shaped protective area inside the molded inner layer (12).

4. The low-temperature resistant and impact-resistant commercial vehicle bumper injection mold according to claim 1, characterized in that, A reinforcing connecting plate (19) is provided at the corner of the molded middle layer (13), and the inner end of the reinforcing connecting plate (19) is connected to the molded inner layer (12).

5. The low-temperature resistant and impact-resistant commercial vehicle bumper injection mold according to claim 1, characterized in that, The bottom plate (1) is provided with a top plate (3) at the top position, and a plurality of push rods (4) are provided at the top position of the top plate (3), with the top of the push rods (4) placed inside the lower mold base (5).

6. The low-temperature resistant and impact-resistant commercial vehicle bumper injection mold according to claim 1, characterized in that, The upper mold base (6) is provided with a sprue plate (7) at the top position, and a panel (8) is provided at the top position of the sprue plate (7), and a feed gate (9) is provided at the middle position of the panel (8).

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