Ejection water outlet material anti-splashing structure

Abstract

The utility model relates to a kind of ejection water gap material anti-splashing structure, including sprue insert, the side wall of the sprue insert is provided with sprue, the top surface of the sprue insert is provided with insert through-hole, the inner side wall of the sprue insert is provided with sliding slot in insert through-hole, the insert through-hole is matched with sliding water gap insert, the side wall of the water gap insert is provided with the sliding hanging platform that slides in sliding slot, the top surface of the water gap insert is provided with the water gap groove that is communicated with sprue, the bottom end of the water gap insert is provided with the top rod of water gap insert sliding, by top rod water gap insert sliding, let the water gap of sprue be separated from product, while water gap material is also located in water gap groove, this increases the force area of water gap material, increase the tight force that water gap material is subjected to, let water gap material be in the water gap rebound of sprue and remain in water gap groove, will not splash, to facilitate the collection water gap material, while avoid water gap material splashing to mould and press mould.

Description

Technical Field

[0001] This utility model relates to the field of plastic molds, and more specifically, to a splash-proof structure for ejector sprue material. Background Technology

[0002] In the production process of injection molding products using plastic molds, sprue material solidifies and connects with the product body to form a whole. However, the sprue material on the product body is usually waste material that is not needed for the product's function, so it is necessary to separate the sprue material on the product body.

[0003] When the sprue is a submarine gate or a horn gate, the sprue needs to detach from the product body before the product body can be demolded. Existing molds use ejector pins to lift the sprue, thereby separating the sprue material from the product body. However, the contact area between the ejector pin and the sprue is small. At the same time, when the ejector pin ejects the sprue, the plastic at the submarine gate or horn gate will undergo elastic deformation. The force generated by the rebound when the submarine gate or horn gate detaches from the gate can easily cause the sprue material to splash, making it difficult to collect the sprue material. Furthermore, the sprue material splashing onto the mold can cause mold compression, thereby damaging the mold. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, a splash-proof structure for top-outlet water discharge is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a splash-proof structure for ejecting sprue material, including a sprue core, a sprue is provided on the side wall of the sprue core, an insert through hole is provided on the top surface of the sprue core, a vertically extending groove is provided on the inner side wall of the insert through hole of the sprue core, the lower end of the groove is an open structure, a sprue insert is slidably fitted in the insert through hole, a sliding platform that slides in the groove is provided on the side wall of the sprue insert, a sprue groove communicating with the sprue is provided on the top surface of the sprue insert, and a push rod for pushing the sprue insert to slide is provided at the bottom end of the sprue insert.

[0006] Preferably, the bottom surface of the sprue insert is provided with an insert blind hole, and the push rod is inserted into the insert blind hole.

[0007] Preferably, the sprue insert has a cold material through hole at the bottom of the blind hole of the insert, which communicates with the sprue groove. The diameter of the cold material through hole is smaller than the diameter of the blind hole of the insert. The push rod extends with an extension portion that matches and is inserted into the cold material through hole. The length of the extension portion is smaller than the length of the cold material through hole.

[0008] Preferably, the top surface of the sprue insert is provided with two insert grooves, which are located on both sides of the sprue groove adjacent to the gate, and the insert grooves are connected to the sprue groove.

[0009] Preferably, the two side walls of the sprue groove are provided with vertically extending extension grooves, and the two extension grooves are respectively located on the two side walls adjacent to the sprue groove and the gate, and the upper end of the extension groove is an open structure.

[0010] Preferably, the cross-section of the through hole in the insert is rectangular, and all four corners of the cross-section of the through hole in the insert are rounded.

[0011] The beneficial effects of this utility model are as follows: by pushing the sprue insert with the push rod to slide, the sprue at the gate is separated from the product, while the sprue material is still located in the sprue groove. This increases the force-bearing area of ​​the sprue material and also increases the clamping force on the sprue material, so that the sprue material stays in the sprue groove when the sprue rebounds at the gate and does not splash. Then, the sprue material is sucked away by the vacuum suction cup of the robot arm, which makes it easy to collect the sprue material and at the same time avoids the sprue material splashing onto the mold and causing mold compression. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the top rod and the overall cross-section of an embodiment of this utility model.

[0014] Figure reference numerals: 1. Sprue core, 10. Sprue, 11. Insert through hole, 12. Slide groove, 2. Sprue insert, 20. Sliding platform, 21. Sprue groove, 22. Insert blind hole, 23. Cold slug through hole, 24. Insert groove, 3. Ejector pin, 30. Extension, 4. Extension groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but 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. In addition, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The directional terms are used to better and more clearly explain and understand this utility model, and are not intended to indicate or imply the necessary orientation of this utility model. Therefore, they should not be construed as limitations on this utility model.

[0016] Examples of embodiments of this utility model Figures 1 to 2As shown, an anti-splash structure for ejected sprue material includes a sprue core 1, a sprue 10 on the side wall of the sprue core 1, an insert through hole 11 on the top surface of the sprue core 1, a vertically extending groove 12 on the inner side wall of the insert through hole 11 of the sprue core 1, the lower end of the groove 12 being an open structure, a sprue insert 2 slidingly fitted inside the insert through hole 11, a sliding platform 20 on the side wall of the sprue insert 2 sliding in the groove 12, the sliding platform 20 and the groove 12 limiting the sliding of the sprue insert 2 to prevent the sprue insert 2 from sliding out of the insert through hole 11 and causing mold compression, a sprue groove 21 communicating with the sprue 10 on the top surface of the sprue insert 2, and a push rod 3 for pushing the sprue insert 2 to slide at the bottom end of the sprue insert 2.

[0017] The ejector rod 3 pushes the sprue insert 2 to slide, thereby allowing the sprue at the gate 10 to detach from the product. At the same time, the sprue material is still located in the sprue groove 2. This increases the force-bearing area of ​​the sprue material when the sprue at the gate 10 detaches from the product, and also increases the clamping force on the sprue material. This allows the sprue material to remain in the sprue groove 21 when the sprue at the gate 10 rebounds, without splashing. Then, the sprue material is sucked away by the vacuum suction cup on the robot arm, which facilitates the collection of the sprue material and avoids the sprue material splashing onto the mold and causing mold compression.

[0018] Further improvements, such as Figure 1 and Figure 2 As shown, the bottom surface of the sprue insert 2 is provided with an insert blind hole 22. The push rod 3 is inserted into the insert blind hole 22. The insert blind hole 22 prevents the push rod 3 from shaking when pushing the sprue insert 2, thereby avoiding the breakage of the push rod 3.

[0019] Further improvements, such as Figure 1 and Figure 2 As shown, the sprue insert 2 has a cold slub through hole 23 at the bottom of the insert blind hole 22, which is connected to the sprue groove 21. The diameter of the cold slub through hole 23 is smaller than the diameter of the insert blind hole 22. The ejector rod 3 has an extension 30 that matches and is inserted into the cold slub through hole 23. The length of the extension 30 is smaller than the length of the cold slub through hole 23. The cold slub well is formed by the cold slub through hole 23 and the extension 30 of the ejector rod 3, thereby preventing the cold slub from entering the cavity during injection molding and affecting the product quality.

[0020] Further improvements, such as Figure 1 and Figure 2As shown, two insert grooves 24 are provided on the top surface of the sprue insert 2. The two insert grooves 24 are respectively located around the sprue groove 21 on both sides adjacent to the gate 10. The insert grooves 24 are connected to the sprue groove 21, which increases the force-bearing area of ​​the sprue material when the push rod 3 pushes the sprue insert 2, thereby preventing the sprue material from being flipped under force and unable to be sucked away by the vacuum suction cup of the robot arm, and also preventing the flying sprue material from splashing out of the sprue groove 21.

[0021] Further improvements, such as Figure 1 and Figure 2 As shown, both side walls of the sprue groove 21 are provided with vertically extending extension grooves 4. The two extension grooves 4 are respectively located on the two side walls adjacent to the sprue groove 21 and the gate 10. Preferably, the extension grooves 4 extend to the inner side wall of the cold slurry through hole 23. The upper end of the extension groove 4 is an open structure. The opening at the upper end of the extension groove 4 is located at the bottom of the insert groove 24. The extension grooves 4 prevent the sprue material from rotating and increase the clamping force on the sprue material, thereby preventing the sprue material from being sucked away by the vacuum suction cup of the robot arm, or preventing the sprue material from splashing out of the sprue groove 21.

[0022] Further improvements, such as Figure 1 and Figure 2 As shown, the cross-section of the through hole 11 of the insert is rectangular, which prevents the sprue insert 2 from rotating and facilitates the alignment of the sprue groove 21 on the sprue insert 2 with the gate 10, making it easier to install the sprue insert 2. The four corners of the cross-section of the through hole 11 of the insert are rounded, which facilitates processing.

[0023] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A splash-proof structure for top-outlet sprue material, comprising a sprue core, characterized in that, A sprue is provided on the side wall of the sprue core; an insert through hole is provided on the top surface of the sprue core; an upper and lower extending groove is provided on the inner side wall of the insert through hole of the sprue core; the lower end of the groove is an open structure; a sprue insert is slidably fitted inside the insert through hole; a sliding platform that slides in the groove is provided on the side wall of the sprue insert; a sprue groove communicating with the sprue is provided on the top surface of the sprue insert; a push rod for pushing the sprue insert to slide is provided at the bottom end of the sprue insert.

2. The anti-splash structure for top-discharge material according to claim 1, characterized in that, The bottom surface of the sprue insert is provided with an insert blind hole; the top rod is inserted into the insert blind hole.

3. The anti-splash structure for top-discharge material according to claim 2, characterized in that, The sprue insert has a cold material through hole at the bottom of the blind hole of the insert, which is connected to the sprue groove; the diameter of the cold material through hole is smaller than the diameter of the blind hole of the insert; the push rod extends with an extension portion that matches and is inserted into the cold material through hole; the length of the extension portion is smaller than the length of the cold material through hole.

4. The anti-splash structure for top-discharge material according to claim 1, characterized in that, The top surface of the sprue insert has two insert grooves; the two insert grooves are respectively located around the sprue groove on both sides adjacent to the gate; the insert grooves are connected to the sprue groove.

5. The anti-splash structure for top-discharge material according to claim 1, characterized in that, The two side walls of the sprue groove are provided with vertically extending extension grooves; the two extension grooves are respectively located on the two side walls of the sprue groove adjacent to the gate; the upper end of the extension groove is an open structure.

6. The anti-splash structure for top-discharge material according to claim 1, characterized in that, The through hole of the insert has a rectangular cross-section; all four corners of the through hole's cross-section are rounded.

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