Injection mold for automobile front and rear door outer water cutting guide rail

Abstract

The utility model relates to the technical field of automobile manufacturing, especially is used for the injection mold of car front and rear door outer water cutting guide rail, including lower mould, upper mould, limiting component, thimble board, thimble and spring, the utility model discloses when using, through the cooling water path of lower mould inside design, adopt the arc shape of water path along the mould groove guide rail and set up to the water path, promote the cooling efficiency and uniformity of mould after injection, reduce the risk of deformation, thereby shorten the forming cycle, reduce the linear deviation of guide rail, and the mould sets up the mould groove in pairs, can produce a pair of outer water cutting guide rail once, promote product linearity, surface finish and batch consistency, through the slope structure of special-shaped plug, when appearing slight deviation in the clamping process, can assist rectification, can avoid appearing left and right displacement situation, guarantee lower mould and upper mould accurate clamping, avoid injection molding part to appear bad such as peak, thereby greatly improve injection molding part quality.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to an injection mold for the water-cutting guide rails of the front and rear doors of automobiles. Background Technology

[0002] The exterior water-cutting guide rail is a key component of the vehicle door system. Its main function is to ensure the smooth operation of the door glass and the waterproof and dustproof performance of the door, and to hold and guide the door glass.

[0003] Currently, the production of automotive door exterior water-cutting guide rails mostly adopts injection molding technology. Existing external water-cutting guide rail injection molds have a long cooling and molding cycle and low cooling efficiency. At the same time, the injection molds used in the production of external water-cutting guide rails are prone to deviations during the mold closing and opening process, which makes it impossible for the upper and lower molds to close and open accurately. As a result, the injection molded parts are prone to defects such as burrs, affecting the quality of the injection molded parts.

[0004] Based on this, the present invention designs an injection mold for the water-cutting guide rails of the front and rear doors of automobiles to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an injection mold for the external water-cutting guide rails of automobile front and rear doors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for a water-cutting guide rail for the front and rear doors of an automobile, comprising a lower mold, an upper mold, a limiting component, an ejector plate, an ejector pin, and a spring, wherein the upper mold is fastened to the upper part of the lower mold, and two limiting components are symmetrically arranged on both sides of the lower mold and the upper mold;

[0007] The lower mold includes a lower mold body, a groove, a mold slot, a guide channel, a branch channel, a vent, a column groove, a pipe opening, a water channel, a U-shaped water channel, and a connecting water channel. The upper end of the lower mold body has a groove, and mold slots are symmetrically formed in the groove. A guide channel is formed at the center of the two mold slots. Branch channels are symmetrically formed on both sides of the guide channel and are respectively connected to the mold slots. Vents are symmetrically formed in the groove. Column grooves are formed at the four corners of the upper end of the lower mold body.

[0008] As a preferred technical solution of this utility model, U-shaped water channels are provided below the internal mold grooves of the lower mold body, and the U-shaped water channels are connected to each other through connecting water channels. The lower mold body is symmetrically provided with water channels, and the water channels are respectively connected to the mold grooves on the same side. Each water channel is provided with a pipe port.

[0009] As a preferred technical solution of this utility model, the upper mold includes an upper mold body, a protrusion, a module, an injection hole, and a runner. The lower end of the upper mold body is fixedly installed with a protrusion, and two modules are symmetrically arranged at the lower end of the protrusion. An injection hole is opened at the center of the upper mold body, and a runner is opened at the center of the protrusion. The injection hole and the runner are connected.

[0010] As a preferred technical solution of this utility model, guide posts are provided at the four corners of the lower end of the upper mold, and the guide posts can be inserted into the grooves opened on the lower mold.

[0011] As a preferred technical solution of this utility model, the limiting component includes an irregularly shaped insert, a first fastening bolt, a first limiting block, a second limiting block, and a second fastening bolt. The irregularly shaped insert is fixedly installed on the side of the upper mold by the first fastening bolt, and the first limiting block and the second limiting block are respectively fixedly installed on the side of the lower mold by the second fastening bolt.

[0012] As a preferred embodiment of this utility model, the first limiting block and the second limiting block form a matching slot that is the same as that formed by the irregular-shaped insert.

[0013] As a preferred embodiment of this utility model, an ejector plate is provided at the lower end of the lower mold, and a plurality of ejector pins are fixedly connected to the ejector plate. A circular piece is provided at the top of each ejector pin, and the circular piece is movably disposed at the bottom end of the mold groove.

[0014] As a preferred embodiment of this utility model, springs are provided at all four corners of the ejector plate, with the lower end of the springs fixedly connected to the ejector plate and the upper end of the springs fixedly connected to the lower end of the lower mold.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In use, this utility model designs the cooling water channels inside the lower mold and uses irregularly shaped cooling water channels to open along the arc shape of the mold groove guide rail. This improves the cooling efficiency and uniformity of the mold after injection molding, reduces the risk of deformation, thereby shortening the molding cycle and reducing the deviation of the guide rail straightness. In addition, the mold has paired mold grooves, which can produce a pair of external water-cutting guide rails at one time, improving the straightness, surface finish and batch consistency of the product.

[0017] 2. In use, the irregularly shaped insert fixed to the side of the upper mold by the first fastening bolt can be engaged with the limiting groove formed by the first limiting block and the second fastening bolt on the side of the lower mold. The sloping structure of the irregularly shaped insert helps to correct slight deviations during mold closing, avoiding left and right displacement and ensuring precise mold closing between the upper and lower molds. This allows for precise alignment of the upper and lower mold cavities, preventing defects such as burrs in the injection molded parts and greatly improving the quality of the injection molded parts. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall unfolded structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the lower mold of this utility model;

[0023] Figure 5 This is a schematic diagram of the vertical cross-sectional structure of the lower mold of this utility model;

[0024] Figure 6 This is a partially enlarged cross-sectional view of the lower mold of this utility model.

[0025] Figure 7 This is a partially enlarged structural diagram of the vertical section of the lower mold of this utility model;

[0026] Figure 8 This is a schematic diagram of the vertical cross-section of the upper mold of this utility model.

[0027] In the diagram: 1. Lower mold; 101. Lower mold body; 102. Groove; 103. Mold groove; 104. Guide channel; 105. Sub-channel; 106. Vent hole; 107. Column groove; 108. Connecting pipe; 109. Water channel; 1010. U-shaped water channel; 1011. Connecting water channel; 2. Upper mold; 201. Upper mold body; 202. Protrusion; 203. Module; 204. Injection hole; 205. Runner; 3. Limiting component; 301. Irregularly shaped insert; 302. First fastening bolt; 303. First limiting block; 304. Second limiting block; 305. Second fastening bolt; 4. Ejector plate; 5. Ejector pin; 501. Circular piece; 6. Spring. Detailed Implementation

[0028] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example

[0030] Please see Figure 1-8 The present invention provides the following technical solution: an injection mold for the water-cutting guide rail of the front and rear doors of automobiles, including a lower mold 1, an upper mold 2, a limiting component 3, an ejector plate 4, an ejector pin 5 and a spring 6. The upper mold 2 is fastened to the upper part of the lower mold 1, and two limiting components 3 are symmetrically arranged on both sides of the lower mold 1 and the upper mold 2.

[0031] The lower mold 1 includes a lower mold body 101, a groove 102, a mold groove 103, a guide channel 104, a branch channel 105, a vent 106, a column groove 107, a pipe opening 108, a water passage 109, a U-shaped water passage 1010, and a connecting water passage 1011. The upper end of the lower mold body 101 is provided with a groove 102, and the mold groove 103 is symmetrically provided in the groove 102. The guide channel 104 is provided at the center of the two mold grooves 103, and the branch channels 105 are symmetrically provided on both sides of the guide channel 104. The branch channels 105 are respectively connected to the mold grooves 103. The vent 106 is symmetrically provided in the groove 102. The four corners of the upper end of the lower mold body 101 are provided with column grooves 107.

[0032] U-shaped water channels 1010 are provided below the internal mold grooves 103 of the lower mold body 101. The U-shaped water channels 1010 are connected to each other by connecting water channels 1011. Water channels 109 are symmetrically provided inside the lower mold body 101. The water channels 109 are connected to the mold grooves 103 on the same side. Each water channel 109 is provided with a pipe port 108.

[0033] The irregular water channel formed by the connection of the internal water channel 109, U-shaped water channel 1010 and connecting water channel 1011 in the lower mold 1 can improve the cooling efficiency and uniformity of the mold, reduce the risk of deformation, shorten the molding cycle, and has good practicality.

[0034] The upper mold 2 includes an upper mold body 201, a protrusion 202, a module 203, an injection hole 204, and a runner 205. The lower end of the upper mold body 201 is fixedly installed with a protrusion 202. Two modules 203 are symmetrically arranged at the lower end of the protrusion 202. An injection hole 204 is opened at the center of the upper mold body 201, and a runner 205 is opened at the center of the protrusion 202. The injection hole 204 and the runner 205 are connected.

[0035] Guide pillars are provided at the four corners of the lower end of the upper mold 2, and the guide pillars can be inserted into the column grooves 107 opened on the lower mold 1.

[0036] The limiting component 3 includes a shaped insert 301, a first fastening bolt 302, a first limiting block 303, a second limiting block 304, and a second fastening bolt 305. The shaped insert 301 is fixedly installed on the side of the upper mold 2 by the first fastening bolt 302, and the first limiting block 303 and the second limiting block 304 are respectively fixedly installed on the side of the lower mold 1 by the second fastening bolt 305.

[0037] The first limiting block 303 and the second limiting block 304 form a mating slot that is identical to that formed by the irregular insert block 301.

[0038] Through the structural design of the limiting component 3, the mold closing or opening of the lower mold 1 and the upper mold 2 can be accurately positioned, avoiding re-offset and defects such as burrs, thereby greatly improving the quality of injection molded parts.

[0039] The lower end of the lower mold 1 is provided with an ejector plate 4, and multiple ejector pins 5 are fixedly connected to the ejector plate 4. The top of the ejector pin 5 is provided with a round piece 501, and the round piece 501 is movably disposed at the bottom end of the mold groove 103.

[0040] Springs 6 are provided at the four corners of the ejector plate 4. The lower end of the springs 6 is fixedly connected to the ejector plate 4, and the upper end of the springs 6 is fixedly connected to the lower end of the lower mold 1.

[0041] The ejection structure, consisting of ejector plate 4, ejector pin 5 and spring 6, can eject the workpiece after injection molding, thus achieving demolding.

[0042] The working principle and usage process of this utility model are as follows: In specific use, when the lower mold 1 and the upper mold 2 are closed, the irregularly shaped inserts 301 symmetrically arranged on both sides of the upper mold 2 can be engaged with the limiting grooves formed by the first limiting block 303 and the second limiting block 304 arranged on both sides of the lower mold 1. Through the sloping structure of the irregularly shaped inserts 301, the offset during the mold closing process can be corrected, and the mold closing can be guided and limited. Furthermore, through the irregularly shaped cooling water channels opened along the arc shape of the mold groove guide rail, the cooling efficiency and uniformity of the mold are improved after injection molding, reducing the risk of deformation, shortening the molding cycle, and improving the injection molding quality, which has good practicality.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An injection mold for water-cutting guide rails on the front and rear doors of automobiles, characterized in that: It includes a lower mold (1), an upper mold (2), a limiting component (3), an ejector plate (4), an ejector pin (5), and a spring (6). The upper mold (2) is fastened to the upper part of the lower mold (1). Two limiting components (3) are symmetrically arranged on both sides of the lower mold (1) and the upper mold (2). The lower mold (1) includes a lower mold body (101), a groove (102), a mold groove (103), a guide channel (104), a branch channel (105), an exhaust hole (106), a column groove (107), a pipe opening (108), a water passage (109), a U-shaped water passage (1010), and a connecting water passage (1011). The upper end of the lower mold body (101) is provided with a groove (102). The mold groove (103) is symmetrically provided in the groove (102). The guide channel (104) is provided at the center of the two mold grooves (103). The branch channels (105) are symmetrically provided on both sides of the guide channel (104). The branch channels (105) are respectively connected to the mold grooves (103). The exhaust hole (106) is symmetrically provided in the groove (102). The column groove (107) is provided at the four corners of the upper end of the lower mold body (101).

2. The injection mold for the external water-cutting guide rail of automobile front and rear doors according to claim 1, characterized in that: U-shaped water channels (1010) are provided below the internal mold groove (103) of the lower mold body (101). The U-shaped water channels (1010) are connected to each other by a connecting water channel (1011). Water passages (109) are symmetrically provided inside the lower mold body (101). The water passages (109) are respectively connected to the mold groove (103) on the same side. Each water passage (109) is provided with a pipe port (108).

3. The injection mold for the external water-cutting guide rail of automobile front and rear doors according to claim 1, characterized in that: The upper mold (2) includes an upper mold body (201), a protrusion (202), a module (203), an injection hole (204), and a runner (205). The lower end of the upper mold body (201) is fixedly installed with a protrusion (202). Two modules (203) are symmetrically arranged at the lower end of the protrusion (202). An injection hole (204) is opened at the center of the upper mold body (201). A runner (205) is opened at the center of the protrusion (202). The injection hole (204) is connected to the runner (205).

4. The injection mold for the external water-cutting guide rail of automobile front and rear doors according to claim 1, characterized in that: The upper mold (2) is provided with guide pillars at the four corners of its lower end, and the guide pillars can be inserted into the column grooves (107) opened on the lower mold (1).

5. The injection mold for the external water-cutting guide rail of automobile front and rear doors according to claim 1, characterized in that: The limiting component (3) includes a shaped insert (301), a first fastening bolt (302), a first limiting block (303), a second limiting block (304), and a second fastening bolt (305). The shaped insert (301) is fixedly installed on the side of the upper mold (2) by the first fastening bolt (302), and the first limiting block (303) and the second limiting block (304) are respectively fixedly installed on the side of the lower mold (1) by the second fastening bolt (305).

6. The injection mold for the external water-cutting guide rail of automobile front and rear doors according to claim 5, characterized in that: The first limiting block (303) and the second limiting block (304) form the same mating slot as the irregular insert (301).

7. The injection mold for the external water-cutting guide rail of automobile front and rear doors according to claim 1, characterized in that: The lower end of the lower mold (1) is provided with an ejector plate (4), and the ejector plate (4) is fixedly connected with a plurality of ejector pins (5). The top of the ejector pin (5) is provided with a round piece (501), and the round piece (501) is movably disposed at the bottom end of the mold groove (103).

8. The injection mold for the external water-cutting guide rail of automobile front and rear doors according to claim 1, characterized in that: Springs (6) are provided at the four corners of the ejector plate (4). The lower end of the spring (6) is fixedly connected to the ejector plate (4), and the upper end of the spring (6) is fixedly connected to the lower end of the lower mold (1).

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