Reverse pouring gate cooling structure of electric vehicle frame fender mold

Abstract

The utility model provides a reverse pouring gate cooling structure of an electric vehicle frame mudguard mould, which comprises a mudguard mould body, two side plate vertical plates, a mould top plate, a mould embedding rod, a base plate and a reverse glue pouring gate pipe, a pipe orifice position is arranged at the top end of the mould top plate, and a hollow inner flow head is arranged in the pipe orifice position. The head of the reverse glue inlet sprue pipe is connected with the hollow inner flow head, a pouring nozzle of the reverse glue inlet sprue pipe is communicated with a mold cavity of the fender mold body, a side bolt of the hollow inner flow head is provided with a flow inlet pipe connector and a flow return pipe connector, and one end of the flow inlet pipe connector and one end of the flow return pipe connector are provided with a flow inlet pipeline and a flow return pipeline respectively; according to the utility model, water can enter and flow back through the inflow pipeline and the backflow pipeline respectively, heat absorption is realized by utilizing the advantage that the specific heat capacity of the water is relatively large, and then the reverse glue pouring gate pipe is cooled, so that the temperature in the pouring process is controlled, and the defects such as heat cracks and air holes on the surface of the frame mudguard are prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold accessories and relates to a back-in gate cooling structure of a fender mold for an electric vehicle frame. Background Art

[0002] The frame fender is an important part of electric vehicles and is usually made by mold injection molding. During the mold casting process, the gate is the path for the molten raw material liquid to enter the mold cavity, so its temperature is often high. If the gate temperature cannot be effectively controlled, it will lead to a series of problems, such as: too high a temperature will slow down the solidification speed of the poured molten raw material liquid, making the pouring process difficult to control; too high a gate temperature will also cause defects such as thermal cracking and air holes on the surface of the frame fender, thereby affecting product quality and even causing the product to be scrapped. Based on this, we designed a reverse gate cooling structure for the electric vehicle frame fender mold. Summary of the Invention

[0003] The purpose of the utility model is to provide a back-in gate cooling structure for an electric vehicle frame fender mold to solve the problems raised in the above-mentioned background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a reverse gate cooling structure of an electric vehicle frame fender mold, comprising a fender mold body, two side panel uprights, a mold top plate, a mold inlay rod, a pad and a reverse gate pipe, the two sides of the top of the fender mold body are connected to the two side panel uprights by bolts, the pad is connected to the bottom end of the mold top plate by bolts, the mold inlay rod is installed at the bottom end of the pad and the end of the mold inlay rod is inserted into the concrete mold cavity of the fender mold, the mold top plate is bolted to the two side panel uprights The top of the mold top plate is provided with a nozzle position, and a hollow internal flow head is provided inside the nozzle position. The head of the reverse glue gate pipe is connected to the hollow internal flow head, and the nozzle of the reverse glue gate pipe is communicated with the specific mold cavity of the fender mold. The side bolts of the hollow internal flow head are installed with an inlet pipe joint and a return pipe joint, and one end of the inlet pipe joint and one end of the return pipe joint are respectively installed with an inlet pipeline and a return pipeline, and one end of the inlet pipeline and one end of the return pipeline are respectively installed with a first quick connector and a second quick connector.

[0005] In the aforementioned reverse-gating cooling structure for the electric vehicle frame fender mold, a fastening cap is threadedly mounted on the annular opening of the nozzle. This cap engages the top of the hollow internal flow head, and the reverse-gating nozzle's interface protrudes from the cap. This arrangement secures the hollow internal flow head to the mold top plate, ensuring good stability during the molten material pouring process while also ensuring the aesthetics of the overall structure.

[0006] In the aforementioned reverse-gating cooling structure for the electric vehicle frame fender mold, an L-shaped opening is defined at the top of the mold top plate, connected to the pipe opening. Both the inlet and return pipe joints are located within the L-shaped opening, corresponding to the fastening cap. This arrangement ensures that the inlet and return pipe joints are located within the L-shaped opening, preventing protrusions in the L-shaped opening, which could cause an unstable connection between the mold top plate, backing plate, and fender mold body.

[0007] In the aforementioned back-gating cooling structure for the electric vehicle frame fender mold, a first heat dissipation cover and a second heat dissipation cover are positioned at the top of the L-shaped opening. One end of the first heat dissipation cover is connected to the second heat dissipation cover, which is in turn connected to the fastening cover. This arrangement facilitates heat dissipation from the return line through the first and second heat dissipation covers. Furthermore, the first and second heat dissipation covers seal the L-shaped opening, effectively protecting the inlet and return lines while also ensuring overall aesthetics.

[0008] In the aforementioned back-gating cooling structure for the electric vehicle frame fender mold, the end of the L-shaped opening extends to the side of the mold top plate and forms a connecting bevel. This design facilitates better connection to an external water source pipe interface, avoiding restrictions on the connection of the water source pipe interface due to the size of the L-shaped opening end.

[0009] In the aforementioned reverse-gating cooling structure for the electric vehicle frame fender mold, the backing plate has a lower recess near the hollow inner flow head, with the inlet and return pipe joints located within the recess. This arrangement allows the inlet and return pipe joints to be located within the recess, avoiding structural protrusions and preventing contact gaps between the mold top plate and backing plate, thereby ensuring a compact overall structure.

[0010] Compared with the existing technology, the advantages of the reverse gate cooling structure of the electric vehicle frame fender mold of the utility model are: by providing a hollow internal flow head inside the pipe mouth, the head of the reverse glue gate pipe is connected to the hollow internal flow head and the nozzle of the reverse glue gate pipe is connected to the specific mold cavity of the fender mold, the side bolts of the hollow internal flow head are installed with the inlet pipe joint and the return pipe joint, one end of the inlet pipe joint and one end of the return pipe joint are respectively installed with the inlet pipe and the return pipe, the inlet pipe and the return pipe can respectively take in water and return water, and utilize the advantage of the larger specific heat capacity of water to achieve heat absorption, and then cool the reverse glue gate pipe, so that the temperature is controlled during the casting process, and the occurrence of defects such as thermal cracking and air holes on the surface of the frame fender is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1The utility model is a three-dimensional structural schematic diagram of the back-in gate cooling structure of the electric vehicle frame fender mold.

[0012] Figure 2 The utility model is a schematic diagram of the position and installation of the back-in gate cooling structure of the electric vehicle frame fender mold.

[0013] Figure 3 The utility model is a schematic plan view of the structure of the top plate of the mold with a reverse gate cooling structure of the mold for the frame fender of an electric vehicle.

[0014] Figure 4 The utility model is a three-dimensional structural diagram of a back-injection gate cooling structure of a fender mold for an electric vehicle frame, in which a hollow inner flow head is connected to a back-injection gate pipe.

[0015] Figure 5 This is a reverse gate cooling structure for the electric vehicle frame fender mold. Figure 1 Schematic diagram of the top view structure.

[0016] Figure 6 The utility model is a three-dimensional structural schematic diagram of the first heat dissipation cover plate and the second heat dissipation cover plate of the reverse gate cooling structure of the electric vehicle frame fender mold.

[0017] In the figure, 1. fender mold body; 2. side panel uprights; 3. mold top plate; 4. fastening cover; 5. first heat dissipation cover; 6. second heat dissipation cover; 7. connecting bevel; 8. mold inlay rod; 9. pad; 10. hollow internal flow head; 11. inlet pipe; 12. return pipe; 13. first quick connector; 14. second quick connector; 15. inlet pipe joint; 16. return pipe joint; 17. lower notch; 18. reverse injection gate pipe; 19. pipe mouth position; 20. L-shaped opening groove. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the reverse gate cooling structure of the electric vehicle frame fender mold of the present invention;

[0020] Example:

[0021] The basic components of the frame fender mold include a fender mold body 1, two side panel uprights 2, a mold top plate 3, a mold inlay rod 8, a pad 9 and a reverse injection gate tube 18. The two sides of the top of the fender mold body 1 are connected to the two side panel uprights 2 by bolts, the pad 9 is connected to the bottom end of the mold top plate 3 by bolts, the mold inlay rod 8 is installed at the bottom end of the pad 9 and the end of the mold inlay rod 8 is inserted into the mold cavity of the fender mold body 1, and the mold top plate 3 is bolted to the two side panel uprights 2.

[0022] The two side plate uprights 2 are located between the fender mold body 1 and the mold top plate 3, and a mold inlay rod 8 is set. The mold inlay rod 8 is composed of multiple inlays, and there is a gap in the middle (such as the attached Figure 1 As can be seen), this allows part of the reverse injection gate pipe 18 to come into contact with the outside air, enabling partial heat exchange to achieve a heat dissipation effect.

[0023] The cooling structure includes the following components: a nozzle position 19 is opened at the top of the mold top plate 3, a hollow internal flow head 10 is provided inside the nozzle position 19, the head of the reverse glue gate pipe 18 is connected to the hollow internal flow head 10, and the nozzle of the reverse glue gate pipe 18 is connected to the mold cavity of the fender mold body 1, and the side bolts of the hollow internal flow head 10 are installed with an inlet pipe joint 15 and a return pipe joint 16, one end of the inlet pipe joint 15 and one end of the return pipe joint 16 are respectively installed with an inlet pipeline 11 and a return pipeline 12, and one end of the inlet pipeline 11 and one end of the return pipeline 12 are respectively installed with a first quick connector 13 and a second quick connector 14.

[0024] The design of the cooling structure: the inlet pipe 11 and the return pipe 12 can respectively take in water and return water, taking advantage of the large specific heat capacity of water to absorb the heat inside the reverse injection gate pipe 18, and then cool the reverse injection gate pipe 18, so that the temperature during the casting process is controlled, preventing defects such as thermal cracking and air holes on the surface of the frame fender.

[0025] In this embodiment, in order to further limit the position of the hollow inner flow head 10, a fastening cover 4 is threadedly installed at the ring mouth of the pipe mouth 19, and the fastening cover 4 is clamped with the top of the hollow inner flow head 10 and the interface of the reverse injection gate tube 18 protrudes from the fastening cover 4.

[0026] Furthermore, in order to enable the inlet pipe joint 15 and the return pipe joint 16 to be located inside the lower recess 17 to avoid structural protrusion, prevent the existence of a contact gap between the mold top plate 3 and the pad 9, and ensure the compact effect of the overall structure, a lower recess 17 is provided at the pad 9 near the hollow inner flow head 10, and the inlet pipe joint 15 and the return pipe joint 16 are both located inside the lower recess 17.

[0027] Example 2: In order to ensure that the inlet pipe joint 15 and the return pipe joint 16 can be better connected to the mold structure, so that they are connected as a whole, ensure the compactness and stability of the overall structure, and avoid the bulge of the cooling structure causing the connection gap to increase, affecting the injection molding quality of the frame fender, an L-shaped opening groove 20 is opened at the top of the mold top plate 3 and the L-shaped opening groove 20 is connected to the pipe mouth position 19. The inlet pipe joint 15 and the return pipe joint 16 are both located inside the L-shaped opening groove 20, and the L-shaped opening groove 20 corresponds to the fastening cover 4; the top of the L-shaped opening groove 20 is provided with a first heat dissipation cover plate 5 and a second heat dissipation cover plate 6, one end of the first heat dissipation cover plate 5 is connected to the second heat dissipation cover plate 6 and the second heat dissipation cover plate 6 is connected to the fastening cover 4.

[0028] On the basis of the second embodiment, in order to better connect the water source pipeline interface, the end of the L-shaped opening groove 20 extends to the side of the mold top plate 3 and forms a connecting oblique opening 7.

[0029] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A back-in gate cooling structure for a fender mold of an electric vehicle frame, comprising a fender mold body (1), two side panel uprights (2), a mold top plate (3), a mold inlay rod (8), a pad (9) and a back-in gate tube (18), wherein the two sides of the top end of the fender mold body (1) are connected to the two side panel uprights (2) by bolts, the pad (9) is connected to the bottom end of the mold top plate (3) by bolts, the mold inlay rod (8) is installed at the bottom end of the pad (9) and the end of the mold inlay rod (8) is inserted into the mold cavity of the fender mold body (1), the mold top plate (3) is bolted to the two side panel uprights (2), and is characterized in that: The top of the mold top plate (3) is provided with a nozzle position (19), and a hollow internal flow head (10) is provided inside the nozzle position (19). The head of the reverse injection gate pipe (18) is connected to the hollow internal flow head (10), and the nozzle of the reverse injection gate pipe (18) is connected to the mold cavity of the fender mold body (1). The side bolts of the hollow internal flow head (10) are installed with an inlet pipe joint (15) and a return pipe joint (16). One end of the inlet pipe joint (15) and one end of the return pipe joint (16) are respectively installed with an inlet pipeline (11) and a return pipeline (12), and one end of the inlet pipeline (11) and one end of the return pipeline (12) are respectively installed with a first quick connector (13) and a second quick connector (14).

2. The back-in gate cooling structure of the electric vehicle frame fender mold according to claim 1, characterized in that: A fastening cover (4) is threadedly mounted at the ring mouth of the pipe mouth (19), the fastening cover (4) is clamped with the top of the hollow inner flow head (10), and the interface of the reverse injection gate pipe (18) protrudes from the fastening cover (4).

3. The back-in gate cooling structure of the electric vehicle frame fender mold according to claim 2, characterized in that: An L-shaped opening groove (20) is provided at the top end of the mold top plate (3), and the L-shaped opening groove (20) is connected to the pipe mouth (19). The inlet pipe joint (15) and the return pipe joint (16) are both located inside the L-shaped opening groove (20), and the L-shaped opening groove (20) corresponds to the fastening cover (4).

4. The back-in gate cooling structure of the electric vehicle frame fender mold according to claim 3, characterized in that: A first heat dissipation cover plate (5) and a second heat dissipation cover plate (6) are provided at the top end of the L-shaped opening groove (20); one end of the first heat dissipation cover plate (5) is connected to the second heat dissipation cover plate (6), and the second heat dissipation cover plate (6) is connected to the fastening cover (4).

5. The back-in gate cooling structure of the electric vehicle frame fender mold according to claim 4, characterized in that: The end of the L-shaped opening groove (20) extends to the side of the mold top plate (3) and is formed with a connecting oblique opening (7).

6. The back-in gate cooling structure of the electric vehicle frame fender mold according to claim 1, characterized in that: A lower recess (17) is provided at a portion of the backing plate (9) close to the hollow inner flow head (10), and the inlet pipe joint (15) and the return pipe joint (16) are both located inside the lower recess (17).

Images