Injection mold for automobile door panel handrail

Abstract

The utility model discloses an automobile door panel handrail injection mold which comprises a base, an upper mold and a lower mold, the upper mold and the lower mold are mounted on the base, a driving mechanism for driving the upper mold to be close to or far away from the lower mold is arranged between the base and the upper mold, and a cooling cavity is formed in the upper mold. The two ends of the cooling cavity extend out of the upper surface of the upper die, a cooling hole penetrating front and back is formed in the lower die, a cooling pipe is inserted into the cooling hole in a penetrating mode, one end of the cooling pipe is communicated with a water inlet collecting box, and the other end of the cooling pipe is connected with a water outlet collecting box. A water outlet pipe is arranged at the end part of the water outlet header. The automobile door panel handrail injection mold can cool the upper side and the lower side of a poured product at the same time, and the cooling and solidification speed of the product is increased.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to an injection molding mold for an automobile door panel armrest. Background Art

[0002] Car door armrests are a common component in automobile parts. Car door armrests can help users support their arms, open or close car doors. The main support material of car door armrests is usually plastic. In some vehicles, the outer side of the plastic is wrapped with leather to enhance the texture. The main support material of car door armrests is usually injection molded, so car door armrest injection molds are used.

[0003] Chinese patent CN202121628517.7 discloses an injection molding mold for an automobile door panel armrest, wherein an injection molding middle plate is located between a first molding mold and a second molding mold, an injection molding machine nozzle is arranged in the middle of the upper end of the injection molding middle plate, the first molding mold and the second molding mold both include a lower mold base and an upper mold base, the upper mold base is located at the upper end of the lower mold base, a molding cavity is arranged between the lower mold base and the upper mold base, and sliding rods are installed on both sides of the upper end of the lower mold base, and the sliding rods are slidably connected to the upper mold base. Cooling water circulation pipes are installed inside the lower mold base and the upper mold base, and cooling water is passed into the cooling water circulation pipes.

[0004] The automobile door panel armrest injection molding mold only records that cooling water circulation pipes are installed inside the lower mold base and the upper mold base, but there is no relevant record on how to arrange the cooling water circulation pipes on the upper and lower sides to obtain a better cooling effect. Utility Model Content

[0005] The utility model aims to provide an automobile door panel armrest injection mold, which effectively combines a cooling cavity and a plurality of cooling pipes by setting a water inlet header and a water outlet header, and can cool the upper and lower sides of the product after casting at the same time, thereby improving the cooling and solidification speed of the product.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an injection mold for an automobile door panel armrest, which includes a base and an upper mold and a lower mold installed on the base, a driving mechanism for driving the upper mold to approach or move away from the lower mold is arranged between the base and the upper mold, a cooling cavity is arranged inside the upper mold, both ends of the cooling cavity extend from the upper surface of the upper mold, a cooling hole penetrating front and back is arranged in the lower mold, a cooling pipe is inserted through the cooling hole, one end of the cooling pipe is connected to a water inlet tank, and the other end is connected to a water outlet tank, the openings at both ends of the cooling cavity are respectively connected to the water inlet tank and the water outlet tank, a water inlet pipe is arranged at the end of the water inlet tank, and a water outlet pipe is arranged at the end of the water outlet tank.

[0007] Preferably, the driving mechanism comprises an inverted L-shaped frame fixedly connected to the base, a cylinder is mounted on the crossbeam of the L-shaped frame, and a cylinder axis of the cylinder extends downward and is connected to the upper mold.

[0008] Preferably, a support reinforcement rod is provided between the cross beam and the longitudinal beam of the L-shaped frame.

[0009] Preferably, the water inlet header is mounted on the base via a first bracket, the water outlet header is mounted on the base via a second bracket, and the lower mold is mounted on the base via a third bracket.

[0010] Preferably, a water inlet shell and a water outlet shell are respectively provided outside the two ends of the cooling chamber, the water inlet shell is connected to the water inlet header through a first bellows, and the water outlet shell is connected to the water outlet header through a second bellows.

[0011] Preferably, the injection hole arranged on the upper mold passes through the cooling cavity, and an isolation tube is arranged at the position where the injection hole is located in the cooling cavity to separate the injection hole from the cooling cavity.

[0012] Preferably, a mold groove is provided at the upper portion of the lower mold, and the plurality of cooling holes are arranged along an extension direction of the bottom surface of the mold groove.

[0013] Preferably, a convex module corresponding to the mold groove is provided at the bottom of the upper mold, and the cooling cavity extends into the convex module.

[0014] Preferably, the cross-section of the cooling cavity is rectangular, including vertical sections arranged at both ends and a U-shaped section arranged in the middle and penetrating the convex module.

[0015] Preferably, the portion of the cooling pipe located outside the lower mold is covered with a heat-insulating sleeve.

[0016] According to the above technical scheme, the utility model provides an injection mold for an automobile door panel armrest, which includes a base and an upper mold and a lower mold installed on the base, a driving mechanism for driving the upper mold to approach or move away from the lower mold is arranged between the base and the upper mold, a cooling cavity is arranged inside the upper mold, both ends of the cooling cavity extend from the upper surface of the upper mold, and the lower mold is provided with cooling holes that pass through the front and back, and a cooling pipe is inserted through the cooling hole, one end of the cooling pipe is connected to a water inlet tank, and the other end is connected to a water outlet tank, the two end openings of the cooling cavity are respectively connected to the water inlet tank and the water outlet tank, the end of the water inlet tank is provided with a water inlet pipe, and the end of the water outlet tank is provided with a water outlet pipe.

[0017] The use method and beneficial effects of the automobile door panel armrest injection mold are as follows: the upper mold is driven downward by a driving mechanism to realize the clamping of the upper mold and the lower mold, and then the injection liquid is filled into the injection cavity between the upper mold and the lower mold through the injection hole arranged on the upper mold. After the filling is completed, the coolant is introduced into the water inlet pipe, and the coolant flows into the cooling cavity and multiple cooling pipes respectively after passing through the water inlet header, and finally the coolant flows out through the water outlet pipe. The upper space of the product can be quickly cooled through the cooling cavity, and the lower space of the product can be quickly cooled through the multiple cooling pipes, so that the cooling and solidification speed of the product can be improved.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of an injection mold for an automobile door panel armrest;

[0021] Figure 2 It is a schematic cross-sectional structure diagram of a preferred embodiment of an injection mold for an automobile door panel armrest;

[0022] Figure 3 It is a top view structural schematic diagram of a preferred embodiment of an injection mold for an automobile door panel armrest;

[0023] Figure 4 yes Figure 3 AA cross-sectional structural diagram;

[0024] Figure 5 It is a structural schematic diagram of a preferred implementation mode in which both ends of the cooling pipe are covered with insulation sleeves.

[0025] Description of Reference Numerals

[0026] 1-water outlet pipe; 2-water outlet header; 3-cooling pipe; 4-mold groove; 5-second bellows; 6-convex module; 7-water outlet shell; 8-injection hole; 9-cylinder; 10-support reinforcement rod; 11-L-shaped frame; 12-water inlet shell; 13-first bellows; 14-water inlet header; 15-water inlet pipe; 16-first bracket; 17-base; 18-lower mold; 19-third bracket; 20-second bracket; 21-vertical section; 22-U-shaped section; 23-cooling hole; 24-upper mold; 25-isolation pipe; 26-insulation sleeve. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0028] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0029] See also Figure 1-5 The automobile door panel armrest injection mold shown includes a base 17 and an upper mold 24 and a lower mold 18 installed on the base 17. A driving mechanism for driving the upper mold 24 to move closer to or away from the lower mold 18 is arranged between the base 17 and the upper mold 24. A cooling cavity is arranged inside the upper mold 24, and both ends of the cooling cavity extend from the upper surface of the upper mold 24. A cooling hole 23 is arranged in the lower mold 18 and passes through the front and back. A cooling pipe 3 is inserted through the cooling hole 23. One end of the cooling pipe 3 is connected to the water inlet header 14, and the other end is connected to the water outlet header 2. The openings at both ends of the cooling cavity are respectively connected to the water inlet header 14 and the water outlet header 2. The end of the water inlet header 14 is provided with a water inlet pipe 15, and the end of the water outlet header 2 is provided with a water outlet pipe 1.

[0030] Through the implementation of the above technical solution, the driving mechanism drives the upper mold 24 to move downward to realize the clamping of the upper mold 24 and the lower mold 18, and then the injection liquid is filled into the injection cavity between the upper mold 24 and the lower mold 18 through the injection hole 8 set on the upper mold 24. After the filling is completed, the coolant is introduced into the water inlet pipe 15. The coolant passes through the water inlet manifold 14 and flows into the cooling cavity and multiple cooling pipes 3 respectively. Finally, the coolant flows out through the water outlet pipe 1. The upper space of the product can be quickly cooled through the cooling cavity, and the lower space of the product can be quickly cooled through the multiple cooling pipes 3, thereby improving the cooling and solidification speed of the product.

[0031] In this embodiment, in order to further provide a driving mechanism, the driving mechanism includes an inverted L-shaped frame 11 fixed to the base 17, and a cylinder 9 is installed on the crossbeam of the L-shaped frame 11, and the cylinder shaft of the cylinder 9 extends downward and connects to the upper mold 24. The mold opening and closing are achieved by the extension and contraction of the cylinder shaft.

[0032] In this embodiment, a support reinforcement rod 10 is arranged between the cross beam and the longitudinal beam of the L-shaped frame 11. The arrangement of the support reinforcement rod 10 increases the support stability of the L-shaped frame 11.

[0033] In this embodiment, in order to further provide an installation method for the water inlet manifold 14, the water outlet manifold 2 and the lower mold 18, the water inlet manifold 14 is installed on the base 17 through the first bracket 16, the water outlet manifold 2 is installed on the base 17 through the second bracket 20, and the lower mold 18 is installed on the base 17 through the third bracket 19.

[0034] In this embodiment, a water inlet shell 12 and a water outlet shell 7 are respectively disposed outside the two ends of the cooling cavity, the water inlet shell 12 is connected to the water inlet header 14 via a first bellows 13, and the water outlet shell 7 is connected to the water outlet header 2 via a second bellows 5. The cooling water in the water inlet header 14 first enters the water inlet shell 12, then enters the cooling cavity through the water inlet shell 12, and then enters the water outlet shell 7 through the cooling cavity, and the cooling water coming out of the water outlet shell 7 enters the water outlet header 2 after passing through the second bellows 5.

[0035] By disposing the first bellows 13 and the second bellows 5 , when the upper mold 24 moves vertically, the first bellows 13 and the second bellows 5 have certain deformation and expansion capabilities, which does not affect the normal use of the first bellows 13 and the second bellows 5 .

[0036] In this embodiment, the injection hole 8 provided on the upper mold 24 is provided through the cooling cavity, and the injection hole 8 is located at the cooling cavity and is provided with an isolation tube 25 isolated from the cooling cavity. Through such a setting, the cooling cavity is isolated from the injection hole 8 to prevent the cooling water and the injection liquid from mixing with each other.

[0037] In this embodiment, in order to further provide a lower mold 18, a mold groove 4 is provided on the upper part of the lower mold 18, and a plurality of cooling holes 23 are arranged along the bottom extension direction of the mold groove 4. The shape of the mold groove 4 matches the shape of the product, for example, the mold groove 4 is in a U-shaped shape as a whole, and a plurality of cooling holes 23 are arranged along the bottom extension direction of the mold groove 4 to form a U-shaped arrangement, so that each cooling tube 3 is as close to the bottom surface of the product as possible.

[0038] In this embodiment, in order to further provide an upper mold 24, a convex module 6 corresponding to the mold groove 4 is provided at the bottom of the upper mold 24, and the cooling cavity extends into the convex module 6. The shape of the convex module 6 matches the shape of the product, for example, the convex module 6 is in a U-shape as a whole.

[0039] In this embodiment, a cooling cavity is further provided, the cross section of the cooling cavity is rectangular, including vertical sections 21 arranged at both ends and a U-shaped section 22 arranged in the middle and penetrating the convex module 6. Through such a setting, the cooling cavity can be as close to the top surface of the product as possible to improve the cooling effect.

[0040] In this embodiment, the portion of the cooling pipe 3 located outside the lower mold 18 is covered with a heat-insulating sleeve 26. Through such a setting, the temperature exchange between the cooling water in the cooling pipe 3 and the environment is reduced.

[0041] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0043] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An injection mold for an automobile door panel armrest, characterized in that: The automobile door panel armrest injection mold comprises a base (17) and an upper mold (24) and a lower mold (18) mounted on the base (17); a driving mechanism for driving the upper mold (24) to move closer to or away from the lower mold (18) is provided between the base (17) and the upper mold (24); A cooling cavity is provided inside the upper mold (24), both ends of the cooling cavity protrude from the upper surface of the upper mold (24), a cooling hole (23) penetrating front and rear is provided inside the lower mold (18), a cooling pipe (3) is inserted through the cooling hole (23), one end of the cooling pipe (3) is connected to the water inlet header (14), and the other end is connected to the water outlet header (2); The openings at both ends of the cooling chamber are respectively connected to the water inlet header (14) and the water outlet header (2); an inlet pipe (15) is provided at the end of the water inlet header (14), and an outlet pipe (1) is provided at the end of the water outlet header (2); A water inlet shell (12) and a water outlet shell (7) are respectively disposed outside the two ends of the cooling chamber; The water inlet shell (12) and the water inlet header (14) are connected via a first bellows (13), and the water outlet shell (7) and the water outlet header (2) are connected via a second bellows (5).

2. The automobile door panel armrest injection mold according to claim 1, characterized in that: The driving mechanism comprises an inverted L-shaped frame (11) fixedly connected to the base (17); A cylinder (9) is installed on the crossbeam of the L-shaped frame (11), and the cylinder axis of the cylinder (9) extends downward and is connected to the upper mold (24).

3. The automobile door panel armrest injection mold according to claim 2, characterized in that: A supporting reinforcement rod (10) is arranged between the cross beam and the longitudinal beam of the L-shaped frame (11).

4. The automobile door panel armrest injection mold according to claim 1, characterized in that: The water inlet header (14) is mounted on the base (17) via a first bracket (16); The water outlet header (2) is mounted on the base (17) via a second bracket (20), and the lower mold (18) is mounted on the base (17) via a third bracket (19).

5. The automobile door panel armrest injection mold according to claim 1, characterized in that: The injection hole (8) provided on the upper mold (24) penetrates the cooling cavity, and an isolation tube (25) is provided at the position of the injection hole (8) located in the cooling cavity to separate the injection hole from the cooling cavity.

6. The automobile door panel armrest injection mold according to claim 1, characterized in that: A die groove (4) is provided at the upper portion of the lower die (18), and a plurality of cooling holes (23) are arranged in an array along the extension direction of the bottom surface of the die groove (4).

7. The automobile door panel armrest injection mold according to claim 6, characterized in that: A convex module (6) corresponding to the die groove (4) is provided at the bottom of the upper die (24), and the cooling cavity extends into the convex module (6).

8. The automobile door panel armrest injection mold according to claim 7, characterized in that: The cross section of the cooling cavity is rectangular, and comprises vertical sections (21) arranged at both ends and a U-shaped section (22) arranged in the middle and penetrating the convex module (6).

9. The automobile door panel armrest injection mold according to claim 1, characterized in that: The portion of the cooling pipe (3) located outside the lower mold (18) is covered with a heat-insulating sleeve (26).

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