A kind of ejection mechanism of wardrobe bottom plate injection mold

Abstract

The utility model relates to a ejection mechanism of wardrobe bottom plate injection mold belongs to injection mold technical field. Including the top plate, fixed template, movable template and footboard that arrange in proper order, be equipped with the forming cavity between fixed template and movable template, the bottom plate that is equipped with cooling forming is inside forming cavity, the footboard inboard is equipped with the push board of sliding connection, be equipped with a plurality of fixed jacks on the push board, the movable template top is equipped with the netted forming groove that links with the forming cavity, the bottom plate bottom is equipped with the reinforcing rib that is cooled and is integrally connected in the forming groove, the intersection of forming groove is equipped with the ejection hole in the bottom, and the jack is slidably connected in the ejection hole respectively;In this scheme, set up the ejection hole in the intersection of forming groove, the jack ejection will be in abutment with the intersection of reinforcing rib, and the reinforcing rib structure strength is higher in the intersection, and the force deformation is not easy, and the bottom reinforcing rib is convenient to eject from the forming groove.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and relates to an ejection mechanism for a wardrobe bottom plate injection mold. Background Technology

[0002] Injection molds are devices used to produce plastic products. The plastic raw material is heated to a molten state and then injected into the molding cavity inside the mold. After the molding cavity is filled, the mold is rapidly cooled, and the molten plastic raw material cools and solidifies to form the desired plastic part. Using injection molds to produce plastic products has advantages such as high precision and high efficiency. Therefore, wardrobes made of plastic materials can also be produced using injection molds.

[0003] The wardrobe base is a part of the wardrobe, installed at the bottom to support it. Therefore, the strength of the base structure is required to be high. Usually, a reinforcing rib structure is set at the bottom of the base to ensure structural strength and reduce the weight of the base. During the production of the base, a groove is set at the bottom of the molding cavity to form the reinforcing rib. However, this will increase the adhesion area between the base product and the moving mold plate, resulting in uneven force during demolding and ejection, causing the base to deform. Summary of the Invention

[0004] The purpose of this utility model is to address the problems existing in the current technology by proposing an ejection mechanism for the injection mold of the wardrobe bottom plate. The technical problem to be solved by this utility model is: how to prevent the bottom plate from deforming during the ejection process.

[0005] The objective of this utility model can be achieved through the following technical solution: An ejection mechanism for a wardrobe bottom injection mold, comprising a top plate, a fixed template, a movable template, and a foot plate arranged in sequence, wherein a molding cavity is provided between the fixed template and the movable template, a bottom plate that has been cooled and formed is provided inside the molding cavity, a push plate that is slidably connected is provided on the inner side of the foot plate, a plurality of ejector pins that are fixedly connected are provided on the push plate, a mesh molding groove connected to the molding cavity is provided on the top of the movable template, a reinforcing rib that is cooled and formed in the molding groove and integrally connected is provided on the bottom of the bottom plate, an ejection hole is provided at the bottom of the intersection of the molding grooves, and the ejector pins are respectively slidably connected inside the ejection hole.

[0006] In this design, the wardrobe base plate is cooled and formed in the molding cavity, and a reinforcing rib structure is formed at the bottom of the base plate in the mesh molding groove. The reinforcing rib is integrally connected to the base plate and forms a mesh structure to improve the structural strength of the base plate. During the demolding process, the push plate is pushed to one side of the moving template, so that the ejector pin extends out from the ejection hole and ejects the base plate out of the mold. In this way, the ejection hole is set at the intersection of the molding groove. When the ejector pin is ejected, it will abut against the intersection of the reinforcing rib. The reinforcing rib structure at the intersection has high strength and is not easily deformed by force, which makes it easy to eject the bottom reinforcing rib from the molding groove.

[0007] In the ejection mechanism of the aforementioned wardrobe base injection mold, the top of the ejector pin has a downwardly recessed fork, which is shaped like an oblique "+" and connects to the molding groove. The fork structure at the top of the ejector pin allows the intersection of the reinforcing ribs to form inside the fork. During ejection and demolding, the fork can hold the reinforcing ribs inside, preventing the base plate from shifting during ejection.

[0008] In the ejection mechanism of the aforementioned wardrobe base injection mold, the top edge of the moving template is provided with several side grooves connected to the molding cavity. The side grooves are arranged horizontally, and the bottom of each side groove is provided with a sliding ejector pin. The side grooves are used to form reinforcing ribs on the bottom side of the base plate. These reinforcing ribs are arranged horizontally to strengthen the structural strength of the bottom side of the base plate, and the ejector pins at the bottom abut against these reinforcing ribs for ejection and demolding.

[0009] In the ejection mechanism of the aforementioned wardrobe base injection mold, a first guide post is fixedly connected inside the foot plate. The first guide post extends towards the side where the push plate is located. The push plate is slidably connected to the first guide post, and a through hole is provided at the bottom of the foot plate. The slidable connection between the first guide post and the push plate allows the push plate to reciprocate along the direction of the first guide post. The through hole structure at the bottom of the foot plate allows the push plate to be pushed towards the side closer to the moving mold plate.

[0010] In the ejection mechanism of the aforementioned wardrobe base injection mold, the push plate is provided with a fixed second guide post, which is slidably inserted into the moving mold plate. The second guide post also guides the push plate, improving the stability during the pushing process.

[0011] In the ejection mechanism of the aforementioned wardrobe base injection mold, the top plate is provided with a feed inlet, and the bottom of the feed inlet is provided with a connected feed channel. Several nozzles are located at the bottom of the feed channel, and the bottom of each nozzle is connected to the molding cavity. Molten plastic heated to a molten state is injected from the feed inlet, and after being diverted by the feed channel, it flows evenly into each nozzle at the bottom, and then is injected into various parts of the molding cavity through the nozzles, completely filling the molding cavity.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. In this solution, the ejector hole is set at the intersection of the forming groove. When the ejector pin is ejected, it will abut against the intersection of the reinforcing ribs. The reinforcing ribs at the intersection have high structural strength and are not easily deformed by force, which makes it easy to eject the bottom reinforcing ribs from the forming groove. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a frontal half-sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the moving template of this utility model;

[0017] Figure 4 This is a schematic diagram of the top structure of the ejector pin of this utility model;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the base plate of this utility model.

[0019] In the diagram, 1 is the top plate; 1a is the feed inlet; 1b is the feed channel; 1c is the nozzle; 2 is the fixed template; 3 is the moving template; 3a is the forming groove; 3a1 is the ejector hole; 3b is the side groove; 4 is the foot plate; 4a is the push plate; 4a1 is the ejector pin; 4a2 is the fork; 4b is the first guide post; 4c is the second guide post; 4d is the through hole; 5 is the forming cavity; 6 is the bottom plate; 6a is the reinforcing rib. Detailed Implementation

[0020] 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.

[0021] Example

[0022] like Figure 1 As shown, the ejection mechanism of the wardrobe bottom plate injection mold has a fixed template 2 at the bottom of the top plate 1, a slidingly connected moving template 3 at the bottom of the fixed template 2, a fixed foot plate 4 at the bottom of the moving template 3, a slidingly connected push plate 4a inside the foot plate 4, a fixed ejector pin 4a1 and a second guide post 4c on the push plate 4a, and a feed port 1a on the top plate 1.

[0023] like Figure 2 As shown, the bottom of the feed inlet 1a is provided with a connected feed channel 1b, the bottom of the feed channel 1b is provided with a plurality of nozzles 1c, a forming cavity 5 is provided between the fixed template 2 and the moving template 3, the bottom of the nozzles 1c is connected to the forming cavity 5, the top of the ejector pin 4a1 passes through the moving template 3 and extends to the bottom of the forming cavity 5, the foot plate 4 is provided with a fixed first guide post 4b inside, the first guide post 4b extends toward the side where the push plate 4a is provided, the push plate 4a is slidably connected to the first guide post 4b, and the bottom of the foot plate 4 is provided with a through hole 4d.

[0024] like Figure 3 Combination Figure 4As shown, the second guide post 4c is slidably inserted into the moving template 3. The top of the moving template 3 is provided with a mesh forming groove 3a connected to the forming cavity 5. The bottom of the intersection of the forming grooves 3a is provided with an ejector hole 3a1. The ejector pins 4a1 are slidably disposed inside the ejector holes 3a1. The top of the ejector pin 4a1 is provided with a downwardly recessed fork 4a2. The fork 4a2 is obliquely shaped like a cross. The fork 4a2 is connected to the forming groove 3a. The top edge of the moving template 3 is provided with several side grooves 3b connected to the forming cavity 5. The side grooves 3b are arranged horizontally. The bottom of the side grooves 3b is provided with ejector pins 4a1 that can slide out.

[0025] like Figure 5 As shown, the molding cavity 5 is provided with a cooling and molding base plate 6. The bottom of the base plate 6 is provided with a number of reinforcing ribs 6a. The reinforcing ribs 6a in the middle of the bottom surface of the base plate 6 have a mesh structure, and the reinforcing ribs 6a on the side of the bottom surface of the base plate 6 are arranged horizontally.

[0026] The working principle of this solution is as follows: Figure 1-5 As shown, molten plastic heated to a molten state is injected into the inlet 1a. After being diverted by the feed channel 1b, it flows evenly into each nozzle 1c at the bottom, and then is injected into various parts of the molding cavity 5 through the nozzles 1c. After the molding cavity 5 is completely filled, the inside of the mold is rapidly cooled, and the molten plastic cools to form the base plate 6 product. Then, the moving platen 3 is moved to open the mold, and the push plate 4a is pushed to one side of the moving platen 3, so that the ejector pin 4a1 extends out of the ejection hole 3a1. The top of the ejector pin 4a1 abuts against the reinforcing rib 6a, pushing the base plate 6 to separate from the moving platen 3. Since the ejector pin 4a1 abuts against the intersection of the reinforcing rib 6a when it is ejected, the reinforcing rib 6a at the intersection has high structural strength and is not easily deformed by force, making it easy to eject the bottom reinforcing rib 6a from the molding groove 3a.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model 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 utility model or exceeding the scope defined by the appended claims.

[0028] Although this document frequently uses terms such as 1. top plate; 1a. feed inlet; 1b. feed channel; 1c. nozzle; 2. fixed template; 3. moving template; 3a. forming groove; 3a1. ejector hole; 3b. side groove; 4. foot plate; 4a. push plate; 4a1. ejector pin; 4a2. fork; 4b. first guide post; 4c. second guide post; 4d. through hole; 5. forming cavity; 6. bottom plate; 6a. reinforcing rib, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. An ejection mechanism for a wardrobe bottom injection mold, comprising a top plate (1), a fixed template (2), a movable template (3), and a foot plate (4) arranged sequentially, wherein a molding cavity (5) is provided between the fixed template (2) and the movable template (3), a cooled and molded bottom plate (6) is provided inside the molding cavity (5), and a slidingly connected push plate (4a) is provided on the inner side of the foot plate (4), wherein a plurality of fixedly connected ejector pins (4a1) are provided on the push plate (4a), characterized in that, The top of the moving template (3) is provided with a mesh forming groove (3a) connected to the forming cavity (5), and the bottom of the base plate (6) is provided with a reinforcing rib (6a) that is cooled and formed in the forming groove (3a) and integrally connected. The bottom of the intersection of the forming groove (3a) is provided with an ejection hole (3a1), and the ejector pins (4a1) are slidably connected inside the ejection hole (3a1).

2. The ejection mechanism of a wardrobe bottom plate injection mold according to claim 1, characterized in that, The top of the ejector pin (4a1) is provided with a downwardly recessed fork (4a2), which is shaped like an oblique "+" and is connected to the forming groove (3a).

3. The ejection mechanism of a wardrobe bottom plate injection mold according to claim 2, characterized in that, The moving template (3) has several side grooves (3b) connected to the molding cavity (5) at its top edge. The side grooves (3b) are arranged horizontally, and the bottom of the side grooves (3b) is provided with ejector pins (4a1) that can slide out.

4. The ejection mechanism of a wardrobe base injection mold according to claim 1, characterized in that, The foot plate (4) is provided with a first guide post (4b) fixed inside. The first guide post (4b) extends to the side where the push plate (4a) is provided. The push plate (4a) is slidably connected to the first guide post (4b). The bottom of the foot plate (4) is provided with a through hole (4d).

5. The ejection mechanism of a wardrobe bottom plate injection mold according to claim 4, characterized in that, The push plate (4a) is provided with a fixed second guide post (4c), which is slidably inserted into the moving template (3).

6. The ejection mechanism of a wardrobe bottom plate injection mold according to claim 1, characterized in that, The top plate (1) is provided with a feed inlet (1a), and the bottom of the feed inlet (1a) is provided with a connected feed channel (1b). The bottom of the feed channel (1b) is provided with a plurality of nozzles (1c), and the bottom of the nozzles (1c) is connected to the molding cavity (5).

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