Epoxy resin composition preparation with inlay extruder bushing

Abstract

The utility model discloses an inlay type extruder bushing for epoxy resin composition preparation, which comprises: a hanging block and a tile block arranged in a nested manner, and a group of the hanging block and the tile block are detachably connected through a jack screw to form an extruder bushing; a group of the extruder bushings are symmetrically combined to form a columnar cavity, and the extruder bushing is sleeved on the outside of a screw rod. In the utility model, the hanging block and the tile block arranged in a nested manner and detachably connected through the jack screw replace the original integrated extruder bushing. After the hanging block is worn, the hanging block can be replaced by removing the jack screw. The hanging block is made of wear-resistant alloy material, which can effectively prolong the service life of the extruder bushing, reduce the maintenance frequency and production cost of the extruder bushing.

Description

Technical Field

[0001] This utility model relates to the field of extruder bushing technology, specifically to an embedded extruder bushing for preparing epoxy resin compositions. Background Technology

[0002] Epoxy Molding Compound (EMC) is a thermosetting polymer composite material made from epoxy resin as the base resin, with the addition of curing agents, fillers, accelerators and other functional additives, through processes such as mixing and plasticizing. It has excellent electrical insulation, mechanical properties and resistance to moisture and heat, and can play a role in moisture protection, oxidation protection, impact resistance and fixing and supporting components. It is widely used in the packaging of electronic components such as integrated circuits and discrete devices.

[0003] In the production process of epoxy molding compound, the extruder bushing is divided into a wear-prone area and a non-wear-prone area. During the extrusion process, the high-hardness filler (such as silica) contained in the epoxy molding compound constantly rubs against the inner wall of the bushing, causing wear only on the wear-prone area of ​​the extruder bushing, resulting in scratches, grooves and other damage. However, damage to the wear-prone area requires frequent replacement of the entire extruder bushing, which not only significantly increases equipment downtime and seriously affects production efficiency, but also incurs high costs for purchasing, installing and debugging new bushings. In addition, the production capacity loss caused by downtime greatly increases the company's production costs. Utility Model Content

[0004] The purpose of this utility model is to solve the above problems by providing an embedded extruder bushing for preparing epoxy resin compositions.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] The interlocking hanging blocks and tile blocks, a group of which are detachably connected by set screws, form an extruder bushing;

[0007] A set of extruder bushings symmetrically surrounds each other to form a columnar cavity, and the extruder bushings are fitted outside the screw.

[0008] As a further description of the above technical solution, the lifting block includes a support portion, and an arc-shaped groove is provided on the top of the support portion.

[0009] As a further description of the above technical solution, the arc-shaped groove includes symmetrically arranged arc-shaped segments, and the middle of the two sets of arc-shaped segments is formed with a sloping tip segment.

[0010] As a further description of the above technical solution, the arc-shaped grooves of the two sets of symmetrically arranged lifting blocks enclose two sets of columnar cavities.

[0011] As a further description of the above technical solution, the height of the slope tip section is 25-35% of the depth of the arc-shaped section.

[0012] As a further description of the above technical solution, the bottom of the support part is provided with a fastening part, and the fastening part has a first stepped groove.

[0013] As a further description of the above technical solution, the first stepped groove includes a first protruding section and a first recessed section, and the first stepped groove corresponds to and fits the contour of the tile edge.

[0014] As a further description of the above technical solution, the top of the tile is provided with a snap-fit ​​part, and the snap-fit ​​part has a second stepped groove.

[0015] As a further description of the above technical solution, the second stepped groove includes a second protruding section and a second recessed section, and the second stepped groove corresponds to and fits the edge contour of the hanging block.

[0016] As a further description of the above technical solution, the set screw is installed at the bottom of the tile, and 2-4 sets of the set screw are symmetrically arranged.

[0017] The beneficial effects of this utility model are as follows:

[0018] In this invention, a fitting arrangement of a hanging block and a tile block that are detachably connected by a set screw replaces the original integrated extruder bushing. After the hanging block wears out, it can be replaced by removing the set screw. The hanging block is made of wear-resistant alloy material, which can effectively extend the service life of the extruder bushing and reduce the maintenance frequency and production cost of the extruder bushing.

[0019] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a front view of the embedded extruder bushing for preparing epoxy resin compositions according to this utility model;

[0021] Figure 2 This is a top view of the embedded extruder bushing for preparing epoxy resin compositions according to this utility model;

[0022] Figure 3 This is a bottom view of the embedded extruder bushing used for preparing the epoxy resin composition according to this utility model.

[0023] Figure label:

[0024] 1. Hanging block; 11. Support part; 111. Arc groove; 112. Arc section; 113. Sloping tip section; 12. Fastening part; 121. First stepped groove; 122. First protruding section; 123. First recessed section; 2. Tile; 21. Snap-fit ​​part; 211. Second stepped groove; 212. Second protruding section; 213. Second recessed section; 3. Top screw. Detailed Implementation

[0025] 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 with reference to the accompanying drawings.

[0026] like Figures 1-3 As shown, in one embodiment, an embedded extruder bushing for preparing an epoxy resin composition includes: a hanging block 1 and a tile 2 that are fitted together. A set of hanging blocks 1 and tile 2 are detachably connected by a set screw 3 and together form a complete extruder bushing. Correspondingly, a set of extruder bushings can be symmetrically arranged to form a columnar cavity, which is precisely fitted onto the outside of the screw to ensure the material conveying space for the extrusion operation.

[0027] Understandably, by using a fitted design with the lifting block 1 and the tile block 2 detachably connected by the set screw 3 to replace the original integrated extruder bushing, when the lifting block 1 wears out due to material friction during use, it is not necessary to replace the entire bushing. Only the set screw 3 needs to be removed to easily replace the worn lifting block 1. Moreover, the lifting block 1 is made of wear-resistant alloy material, which has excellent wear resistance and can effectively slow down the damage rate. Therefore, it can effectively reduce the maintenance frequency of the extruder bushing. At the same time, since it is not necessary to frequently purchase the entire bushing, it can effectively reduce production costs.

[0028] Please continue reading. Figures 1-2 In this embodiment, the lifting block 1 includes a support portion 11, and an arc-shaped groove 111 is formed on the top of the support portion 11. The arc-shaped groove 111 is composed of two sets of symmetrically arranged arc-shaped segments 112, and a slope tip segment 113 is formed in the middle of the two sets of arc-shaped segments 112. In addition, the middle slope tip segment 113 of the lifting block 1 and the rest of the main body can be quickly separated and replaced by installing and removing the top screw 3.

[0029] Specifically, the two sets of symmetrically arranged hanging blocks 1 have arc-shaped grooves 111 that enclose two sets of columnar cavities. The height of the slope tip section is 25-35% of the depth of the arc section 112, which can effectively control the material flow state during the material extrusion process and ensure uniform plasticization and conveying of the material.

[0030] Furthermore, the bottom of the support part 11 is provided with a fastening part 12, and the fastening part 12 has a first stepped groove 121.

[0031] Specifically, the first stepped groove 121 is composed of a first protruding section 122 and a first recessed section 123. The first stepped groove 121 corresponds to and fits the edge contour of the tile 2, so that the hanging block 1 and the tile 2 can be quickly and accurately fitted together during assembly. After being connected by the set screw 3, it can ensure that the connection between the two is stable. Under the complex working conditions of extrusion operation, a reliable assembly relationship is always maintained, ensuring the overall structural stability of the extruder bushing.

[0032] Please continue reading. Figures 1-2 In this embodiment, the top of the tile 2 is provided with a snap-fit ​​part 21, and the snap-fit ​​part 21 is provided with a second stepped groove 211.

[0033] Specifically, the second stepped groove 211 is composed of a second protruding section 212 and a second recessed section 213. The second stepped groove 211 corresponds to and fits the edge contour of the hanging block 1. During assembly, the tile 2 and the hanging block 1 can be quickly and stably engaged, ensuring the accuracy of the connection and the integrity of the structure.

[0034] Furthermore, the set screw 3 is installed at the bottom of the tile 2. There are 2-4 sets of set screws 3 symmetrically arranged, so that the fastening force of the set screw 3 on the tile 2 and the hanging block 1 is evenly distributed. During the operation of the extruder, even if it is subjected to complex forces such as high pressure friction of the material, the tile 2 and the hanging block 1 can maintain a reliable connection, avoid relative displacement, and ensure the overall stability of the bushing structure.

[0035] Through the above technical solution, this application can effectively extend the service life of extruder bushings and reduce the maintenance frequency and production cost of extruder bushings.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An embedded extruder bushing for preparing epoxy resin compositions, characterized in that, include: The fitting arrangement of the hanging block (1) and the tile block (2) forms an extruder bushing via a set of the hanging block (1) and the tile block (2) detachably connected by a set screw (3); A set of extruder bushings symmetrically surrounds each other to form a columnar cavity, and the extruder bushings are fitted outside the screw.

2. The embedded extruder bushing for preparing epoxy resin compositions according to claim 1, characterized in that, The lifting block (1) includes a support part (11), and the top of the support part (11) is provided with an arc-shaped groove (111).

3. The embedded extruder bushing for preparing epoxy resin compositions according to claim 2, characterized in that, The arc groove (111) includes symmetrically arranged arc segments (112), and the middle of the two sets of arc segments (112) is formed with a sloping tip segment (113).

4. The embedded extruder bushing for preparing epoxy resin compositions according to claim 2, characterized in that, The two sets of symmetrically arranged hanging blocks (1) have arc-shaped grooves (111) that enclose each other to form two sets of columnar cavities.

5. The embedded extruder bushing for preparing epoxy resin compositions according to claim 3, characterized in that, The height of the slope tip (113) is 25-35% of the depth of the arc segment (112).

6. The embedded extruder bushing for preparing epoxy resin compositions according to claim 2, characterized in that, The bottom of the support part (11) is provided with a fastening part (12), and the fastening part (12) has a first stepped groove (121).

7. The embedded extruder bushing for preparing epoxy resin compositions according to claim 6, characterized in that, The first stepped groove (121) includes a first protruding section (122) and a first recessed section (123), and the first stepped groove (121) is in corresponding fit with the edge contour of the tile (2).

8. The embedded extruder bushing for preparing epoxy resin compositions according to claim 1, characterized in that, The top of the tile (2) is provided with a snap-fit ​​part (21), and the snap-fit ​​part (21) has a second stepped groove (211).

9. The embedded extruder bushing for preparing epoxy resin compositions according to claim 8, characterized in that, The second stepped groove (211) includes a second protruding section (212) and a second recessed section (213), and the second stepped groove (211) is in contact with the edge contour of the hanging block (1).

10. The embedded extruder bushing for preparing epoxy resin compositions according to claim 1, characterized in that, The top screw (3) is installed at the bottom of the tile (2), and 2-4 sets of the top screw (3) are symmetrically arranged.

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