Constant-temperature multi-point pouring mechanism of plastic wardrobe panel injection mold

Abstract

The utility model provides a constant-temperature multi-point pouring mechanism of a plastic wardrobe panel injection mold, and belongs to the field of injection molds. The injection molding device comprises a fixed mold plate, a panel molding plate is arranged on the fixed mold plate, a molding surface is arranged on the panel molding plate, an injection molding liquid shunting block is further arranged on the fixed mold plate, an inlet of the injection molding liquid shunting block is communicated with an injection molding pipe, and an outlet of the injection molding liquid shunting block is communicated with an outlet of the injection molding pipe. The injection molding liquid shunting block is provided with a plurality of liquid outlet holes and penetrates through the panel forming plate to extend to the forming surface, side plate forming structures are arranged at the two ends of the fixed mold plate in a sliding mode respectively, and the panel forming plate is arranged on the fixed mold plate in a protruding mode. The panel forming plate is surrounded by the side plate forming structure on the inner side, and a circle of side plate forming cavity is formed between the side plate forming structure and the panel forming plate.

Description

Technical Field

[0001] The utility model belongs to the field of injection molds, in particular to a constant temperature multi-point pouring mechanism of an injection mold for a plastic wardrobe panel. Background Art

[0002] Existing wardrobes are often made of wood. The use of solid wood makes the wardrobe expensive, while the use of sawdust and glue makes the wardrobe heavy. In addition, the use of ordinary glue will produce formaldehyde, which affects health. Therefore, a wardrobe made of plastic is designed. It is light, low-cost and does not affect health. It is very suitable for some tenants and is convenient for placement and moving.

[0003] However, wardrobes are large in size, especially wardrobe panels. Generally, wardrobe panels need to be about 1-2 meters long. Ordinary injection molds have only one injection port. In the process of making wardrobe panels through injection molds, due to the slow liquid discharge speed of the injection port and the large length of the molding cavity, it is easy to cause the plastic parts to be delaminated or bulged due to different cooling rates during the cooling and molding process, resulting in low yield.

[0004] For example, a Chinese patent document discloses a mold for forming an anti-deformation structure of an assembled children's wardrobe panel [patent application number: CN202221332586.8], which includes a wardrobe panel molding lower mold and a wardrobe panel molding upper mold, and the wardrobe panel molding lower mold is provided with a panel molding lower convex frame. During the injection molding process of the utility model, the wardrobe panel molding lower mold and the wardrobe panel molding upper mold are abutted and matched, so that the panel molding lower convex frame and the panel molding upper groove are matched to form the main cavity of the plastic part, and then the lower molding part is matched with the upper molding part to form the internal structure of the plastic part. However, since the panel is long, and the mold has only one injection hole, the speed during the injection molding process is slow, which can easily lead to delamination or bulging of the plastic part due to different cooling rates during the cooling molding process. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and provide a constant temperature multi-point pouring mechanism for the injection mold of the plastic wardrobe panel.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A constant temperature multi-point pouring mechanism for a plastic wardrobe panel injection mold includes a fixed mold plate, a panel forming plate provided on the fixed mold plate, a forming surface provided on the panel forming plate, and an injection liquid diverter block provided on the fixed mold plate. The inlet of the injection liquid diverter block is connected to the injection pipe, and the injection liquid diverter block is provided with a plurality of liquid outlet holes and extends through the panel forming plate to the forming surface. Side panel forming structures are slidably provided at both ends of the fixed mold plate, and the panel forming plate is convexly provided on the fixed mold plate. When the mold is closed, the side panel forming structure encloses the panel forming plate inside and forms a circle of side panel forming cavity between the panel forming plate.

[0008] In the above-mentioned constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold, the side panel forming structure includes two moving blocks that are respectively slidably connected to the two sections of the fixed template, and side panel forming moving rods are respectively provided at both ends of the moving block. When the mold is closed, the two side panel forming moving rods are respectively abutted against the two side panel forming moving rods on the other moving block and cooperate with the moving block to enclose the panel forming plate on the inside.

[0009] In the above-mentioned constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold, the end of the side panel forming moving rod is provided with a connecting groove, a connecting inner block is provided in the connecting groove, and a connecting outer block is provided on the fixed template. The two sides of the connecting outer block are respectively provided with snap grooves. When the mold is closed, the connecting outer block extends into the connecting grooves of the two side panel forming moving rods, and the connecting inner block extends into the corresponding snap grooves.

[0010] In the above-mentioned constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold, each moving block corresponds to a support block arranged on the fixed template and extending laterally from the fixed template. The support block is provided with an I-shaped slide bar, and the moving block is slidably connected to the corresponding I-shaped slide bar.

[0011] In the above-mentioned constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold, the moving block is also connected to an extension block, the extension block extends upward, and the upper end of the extension block is provided with a top block, the top block is slidably connected to the outer surface of the support block away from the I-shaped slide bar side, and the top block is connected to the linear drive.

[0012] In the above-mentioned constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold, the moving block and the extension block are fixedly connected by bolts, and the fixed positions of the moving block and the extension block are located on the side of the moving block away from the panel forming plate. A bottom block is also provided at the bottom of the extension block, and the bottom block and the surface of the side of the moving block away from the top block are abutted against each other.

[0013] In the above-mentioned constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold, the movable block is provided with an inner buckle cavity, and the bottom block abuts against the inner wall of the inner buckle cavity.

[0014] In the constant temperature multi-point pouring mechanism of the above-mentioned plastic wardrobe panel injection mold, a snap groove is provided in the side of the movable block close to the panel forming plate. When the mold is closed, the snap groove is connected to the side panel forming cavity, and the snap groove body is placed in the same direction as the moving direction of the movable block.

[0015] In the constant temperature multi-point pouring mechanism of the above-mentioned plastic wardrobe panel injection mold, the injection pipe is screwed to the injection liquid diversion block, and the side panel forming structure can move out of the fixed template.

[0016] In the above-mentioned constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold, the side panel forming moving rod is detachably connected to the moving block.

[0017] Compared with the existing technology, the advantages of this utility model are:

[0018] 1. The diversion injection molding through the injection liquid diversion block can speed up the injection of injection liquid and prevent the stratification of plastic parts due to uneven hot and cold.

[0019] 2. The outer connecting block extends into the connecting groove of the two side panel forming moving rods, and the inner connecting block extends into the corresponding buckle groove to fix the two side panel forming moving rods, thereby preventing the side panel forming moving rods from shaking under high pressure environment and causing forming failure.

[0020] 3. The moving block slides on the I-shaped slide bar. The cross section of the slide bar is I-shaped. The moving direction of the moving block is specified. During the demoulding process, the plastic part will not be torn. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure;

[0022] Figure 2 yes Figure 1 Schematic diagram of the other direction;

[0023] Figure 3 It is a structural diagram of the side panel forming structure;

[0024] Figure 4 yes Figure 3 An enlarged schematic diagram of point A in FIG.

[0025] Figure 5 yes Figure 3 Schematic diagram of the structure in another direction;

[0026] Figure 6 It is a schematic diagram of the fixed template structure;

[0027] Figure 7 yes Figure 6 An enlarged schematic diagram of point B in FIG.

[0028] In the figure: fixed template 10, panel forming plate 11, forming surface 12, injection liquid diverter block 13, injection tube 14, liquid outlet 16, side panel forming structure 17, side panel forming cavity 18, moving block 19, side panel forming moving rod 20, connecting groove 21, connecting inner block 22, connecting outer block 23, snap groove 24, support block 25, I-shaped slide bar 26, extension block 27, top block 28, bottom block 29, inner buckle cavity 30. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] The utility model provides a constant temperature multi-point pouring mechanism for the injection mold of a plastic wardrobe panel, combined with Figure 1-7 As shown, it includes a fixed template 10, on which a panel forming plate 11 is provided, on which a forming surface 12 is provided, and on which an injection liquid diversion block 13 is further provided. The inlet of the injection liquid diversion block 13 is connected to an injection tube 14, and the injection liquid diversion block 13 is provided with a plurality of liquid outlet holes 16 which pass through the panel forming plate 11 and extend to the forming surface 12. Side panel forming structures 17 are slidingly provided at both ends of the fixed template 10, and the panel forming plate 11 is protruding from the fixed template 10. When the mold is closed, the side panel forming structure 17 encloses the panel forming plate 11 on the inner side and forms a circle of side panel forming cavity 18 between the panel forming plate 11.

[0031] In this embodiment, when the mold is closed, the fixed template 10 and the movable template are closed, and the side panel molding structure 17 is cooperated to form a molding cavity. During the injection molding process, the injection molding liquid flows through the injection tube 14 to the injection molding liquid diverter plate 15, and then is diverted to the molding surface 12 through the injection molding liquid diverter plate 15 and injection molding is performed. After the injection molding is completed, the side panel molding structure 17 moves along the fixed template 10 to be disconnected from the side panel part of the plastic part, and then the movable template is disconnected from the fixed template 10, and finally the plastic part is ejected to complete the demoulding. Since the mold is used to make wardrobe panels, the molding cavity is longer, so the diversion injection through the injection molding liquid diverter block 13 can speed up the injection of the injection molding liquid and prevent the plastic part from being stratified due to uneven hot and cold.

[0032] The side panel forming structure 17 includes two moving blocks 19 that are respectively slidably connected to the two sections of the fixed template 10. Side panel forming moving rods 20 are respectively provided at both ends of the moving block 19. When the mold is closed, the two side panel forming moving rods 20 respectively abut against the two side panel forming moving rods 20 on the other moving block 19 and cooperate with the moving block 19 to enclose the panel forming plate 11 on the inside.

[0033] In this embodiment, when the mold is closed, the moving block 19 carries the side panel forming moving rod 20 to slide on the fixed mold plate 10 and makes the side panel forming moving rods 20 on both sides abut against each other and cooperate with the moving block 19 to enclose the panel forming plate 11 on the inside to form a side panel forming cavity 18. Since each side of the molded wardrobe panel is provided with a side panel, the side panel forming moving rod 20 and the side surface of the moving block 19 close to the panel forming plate 11 are used to mold the side panel surface of the plastic part.

[0034] The end of the side panel forming moving rod 20 is provided with a connecting groove 21, and a connecting inner block 22 is provided in the connecting groove 21. The fixed template 10 is provided with a connecting outer block 23, and both sides of the connecting outer block 23 are respectively provided with a snap groove 24. When the mold is closed, the connecting outer block 23 extends into the connecting groove 21 of the two side panel forming moving rods 20, and the connecting inner block 22 extends into the corresponding snap groove 24.

[0035] In this embodiment, since the injection molding process is carried out under high pressure and the side panel molding moving rod 20 is relatively long, the connecting outer block 23 extends into the connecting groove 21 of the two side panel molding moving rods 20, and the connecting inner block 22 extends into the corresponding snap groove 24 to fix the two side panel molding moving rods 20, thereby preventing the side panel molding moving rods 20 from shaking under high pressure and causing molding failure.

[0036] Each moving block 19 corresponds to a support block 25 which is arranged on the fixed template 10 and extends laterally from the fixed template 10 . An I-shaped slide bar 26 is provided on the support block 25 , and the moving block 19 is slidably connected to the corresponding I-shaped slide bar 26 .

[0037] In this embodiment, the moving block 19 slides on the I-shaped slide bar 26, and the cross section of the I-shaped slide bar 26 is an I-shaped slide bar. The moving direction of the moving block 19 is a specified direction, and the plastic part will not be torn during the demolding process.

[0038] The moving block 19 is also connected to an extension block 27, which extends upward. A top block 28 is provided at the upper end of the extension block 27. The top block 28 is slidably connected to the outer surface of the support block 25 away from the I-shaped slide 26, and the top block 28 is connected to the linear drive.

[0039] In this embodiment, the support block 25 is located between the top block 28 and the moving block 19. The weight of the moving block 19 is supported on the upper surface of the support block 25 by the sliding resistance between the top block 28 and the support block 25. Under long-term operation, the I-beam slide 26 will not bend, so that the moving direction of the moving block 19 is always linear.

[0040] The moving block 19 and the extension block 27 are fixedly connected by bolts. The fixed position of the moving block 19 and the extension block 27 is located on the side of the moving block 19 away from the panel forming plate 11. A bottom block 29 is also provided at the bottom of the extension block 27. The bottom block 29 is against the surface of the side of the moving block 19 away from the top block 28.

[0041] In this embodiment, the bottom block 29 abuts against a surface of the moving block 19 away from the top block 28 , and is further used to support the moving block 19 .

[0042] The moving block 19 is provided with an inner buckle cavity 30 , and the bottom block 29 abuts against the inner wall of the inner buckle cavity 30 .

[0043] In this embodiment, when the mold is closed, part of the movable platen will extend into the inner buckle cavity 30 and press against the bottom block 29 and the moving block 19, thereby preventing molding failure caused by the movement of the moving block 19 under high-pressure injection molding.

[0044] The moving block 19 is provided with a snap groove 24 on the side surface close to the panel forming plate 11 . When the mold is closed, the snap groove 24 is connected to the side panel forming cavity 18 . The snap groove 24 is placed in the same direction as the moving block 19 .

[0045] In this embodiment, the snap groove 24 is used to form the insert portion of the side panel. The insert is aligned with the panel and is horizontal. Therefore, when demoulding, the lateral movement of the moving block 19 can separate the adhesive from the plastic part.

[0046] The injection tube 14 is screwed to the injection liquid diverter block 13 , and the side plate forming structure 17 can move out of the fixed template 10 .

[0047] In this embodiment, the fixed template 10 can be replaced according to actual production needs. For example, if panels with different patterns need to be produced, the moving block 19 and the side panel forming moving rod 20 can both move out of the fixed template 10.

[0048] The side panel forming moving rod 20 is detachably connected to the moving block 19 .

[0049] In this embodiment, the side panel forming moving rod 20 can be replaced according to actual production needs. For example, if panels of different lengths need to be produced, the side panel forming moving rod 20 and the moving block 19 can be detachably connected by bolts.

[0050] The working principle of the present invention is as follows: when closing the mold, the linear drive causes the moving block 19 to move with the side panel forming moving rod 20, so that the side panel forming moving rods 20 on both sides abut against each other and cooperate with the moving block 19 to enclose the panel forming plate 11 on the inner side to form a side panel forming cavity 18, and the movable template is closed to form a molding cavity. During the injection molding process, the injection molding liquid flows through the injection molding pipe 14 to the injection molding liquid diverter plate 15, and then is diverted to the molding surface 12 through the injection molding liquid diverter plate 15 and injection molding is performed. After the injection molding is completed, the linear drive causes the moving block 19 to move with the side panel forming moving rod 20 to disconnect from the plastic part, and then the movable template is disconnected from the fixed template 10, and finally the plastic part is ejected to complete demoulding.

[0051] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art 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.

[0052] Although this article uses the fixed template 10, panel forming plate 11, forming surface 12, injection liquid diversion block 13, injection molding tube 14, liquid outlet 16, side panel forming structure 17, side panel forming cavity 18, moving block 19, side panel forming moving rod 20, connecting groove 21, connecting inner block 22, connecting outer block 23, snap groove 24, support block 25, I-beam slide 26, extension block 27, top block 28, bottom block 29, inner buckle cavity 30, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A constant temperature multi-point pouring mechanism for a plastic wardrobe panel injection mold, characterized in that: The invention comprises a fixed template (10), wherein the fixed template (10) is provided with a panel forming plate (11), the panel forming plate (11) is provided with a forming surface (12), the fixed template (10) is also provided with an injection liquid diversion block (13), the inlet of the injection liquid diversion block (13) is connected with an injection pipe (14), the injection liquid diversion block (13) is provided with a plurality of liquid outlet holes (16) and passes through the panel forming plate (11) and extends to the forming surface (12), the two ends of the fixed template (10) are respectively provided with side plate forming structures (17) for sliding, the panel forming plate (11) is convexly provided on the fixed template (10), and when the mold is closed, the side plate forming structure (17) encloses the panel forming plate (11) inside and forms a circle of side plate forming cavity (18) between the panel forming plate (11) and the side plate forming structure (17).

2. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 1 is characterized in that: The side panel forming structure (17) includes two moving blocks (19) respectively connected to the two sections of the fixed template (10) for sliding, and side panel forming moving rods (20) are respectively provided at both ends of the moving block (19). When the mold is closed, the two side panel forming moving rods (20) respectively abut against the two side panel forming moving rods (20) on the other moving block (19) and cooperate with the moving block (19) to enclose the panel forming plate (11) inside.

3. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 2, characterized in that: The end of the side panel forming moving rod (20) is provided with a connecting groove (21), and a connecting inner block (22) is provided in the connecting groove (21). The fixed template (10) is provided with a connecting outer block (23), and the two sides of the connecting outer block (23) are respectively provided with snap grooves (24). When the mold is closed, the connecting outer block (23) extends into the connecting grooves (21) of the two side panel forming moving rods (20), and the connecting inner block (22) extends into the corresponding snap grooves (24).

4. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 2, characterized in that: Each moving block (19) corresponds to a supporting block (25) which is arranged on the fixed template (10) and extends out of the fixed template (10) along the side. An I-shaped slide bar (26) is provided on the supporting block (25), and the moving block (19) is slidably connected to the corresponding I-shaped slide bar (26).

5. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 4, characterized in that: The moving block (19) is also connected to an extension block (27), the extension block (27) extends upward, and the upper end of the extension block (27) is provided with a top block (28), the top block (28) is slidably connected to the outer surface of the support block (25) away from the I-shaped slide bar (26), and the top block (28) is connected to the linear drive.

6. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 5, characterized in that: The moving block (19) and the extension block (27) are fixedly connected by bolts. The fixed positions of the moving block (19) and the extension block (27) are located on the side of the moving block (19) away from the panel forming plate (11). A bottom block (29) is also provided at the bottom of the extension block (27). The bottom block (29) and the surface of the side of the moving block (19) away from the top block (28) are in contact with each other.

7. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 6, characterized in that: The moving block (19) is provided with an inner buckle cavity (30), and the bottom block (29) is pressed against the inner wall of the inner buckle cavity (30).

8. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 4, characterized in that: The movable block (19) is provided with a snap groove (24) on the side surface close to the panel forming plate (11). When the mold is closed, the snap groove (24) is communicated with the side plate forming cavity (18). The slot body of the snap groove (24) is placed in the same direction as the moving direction of the movable block (19).

9. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 2, characterized in that: The injection molding tube (14) is screwed to the injection liquid diversion block (13), and the side plate forming structure (17) can move out of the fixed mold plate (10).

10. The constant temperature multi-point pouring mechanism of the plastic wardrobe panel injection mold according to claim 9, characterized in that: The side panel forming moving rod (20) is detachably connected to the moving block (19).

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