Quick disassembly and assembly structure for extruder head filter screen

Abstract

The utility model discloses a quick disassembly and assembly structure of an extruder head filter screen, which comprises an extrusion head and an extrusion cylinder, the upper end of the extrusion head is fixedly connected with a threaded snap ring, the outer side of the threaded snap ring is in threaded connection with a connecting ring, the upper end of the connecting ring is fixedly connected with the extrusion cylinder, the inner side of the extrusion cylinder is movably connected with a hollow positioning ring, and the hollow positioning ring is in threaded connection with the outer side of the threaded snap ring. A filter screen is installed on the inner side of the hollow positioning ring, a dismounting and mounting mechanism is arranged at the upper end of the hollow positioning ring and comprises two sets of symmetrical fixing columns, and the lower ends of the fixing columns are fixedly connected with the hollow positioning ring. According to the quick disassembly and assembly structure for the extruder head filter screen, the locking mechanism is arranged, when the filter screen needs to be disassembled and assembled, the filter screen can be quickly disassembled and assembled through the locking mechanism, operation is easy, use is convenient and fast, meanwhile, the filter screen is installed in the extrusion barrel, the filter screen is prevented from being connected between the extrusion barrel and the extrusion head, and the extrusion head is prevented from being damaged. And the material leakage risk caused by poor sealing is avoided.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to a quick-release and detachable structure for an extruder head filter. Background Technology

[0002] An extruder is a type of plastic machinery. Based on the angle between the material flow direction at the die head and the screw centerline, the die head can be divided into a right-angle die head and an angled die head. It relies on the pressure and shearing force generated by the rotation of the screw to fully plasticize and uniformly mix the material, which is then formed through a die. During the use of an extruder, the filter screen is an important component. It can filter out impurities in the raw materials and ensure the quality of the extruded products.

[0003] Existing extruder heads are not easy to replace the filter screen during use, and the filter screen is generally installed at the connection between the extruder head and the extruder barrel, which has poor sealing performance and is prone to material leakage. To solve the above problems, we propose an extruder head filter screen quick disassembly and assembly structure. Utility Model Content

[0004] The main purpose of this utility model is to provide a quick-disassembly and assembly structure for the extruder head filter, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A quick-release and detachable structure for an extruder head filter includes an extruder head and an extruder barrel. A threaded retaining ring is fixedly connected to the upper end of the extruder head. A connecting ring is threadedly connected to the outer side of the threaded retaining ring. The upper end of the connecting ring is fixedly connected to the extruder barrel. A hollow positioning ring is movably connected to the inner side of the extruder barrel. A filter is installed inside the hollow positioning ring. A disassembly and detachment mechanism is provided at the upper end of the hollow positioning ring. The disassembly and detachment mechanism includes two sets of symmetrical fixed posts. The lower end of each fixed post is fixedly connected to the hollow positioning ring. A positioning plate is movably connected above each fixed post and is fixedly connected to the extruder barrel. A limit hole is formed on the inner side of the positioning plate. A locking mechanism is provided inside the extruder barrel. The locking mechanism includes two sets of symmetrical limit grooves. The limit grooves are formed inside the extruder barrel, and a limit block is movably connected to the inner side of each limit groove.

[0007] Preferably, the inner side of the extrusion cylinder is provided with two sets of symmetrical sliding grooves, and the inner side of the sliding grooves is movably connected to a slider, and the hollow positioning ring is fixedly connected between the two sets of sliders.

[0008] Preferably, a limiting rod is fixedly connected to the upper end of the fixed column, a moving block is slidably connected to the outer side of the limiting rod, and a hemispherical block is fixedly connected to the upper end of the limiting rod.

[0009] Preferably, the inner side of the hemispherical block is in contact with the upper end of the moving block, and a connecting rod is fixedly connected to the upper end of the hemispherical block, the connecting rod being slidably connected to the inner side of the limiting hole.

[0010] Preferably, a first spring is provided on the outer side of the connecting rod, and the first spring is movably connected between the hemispherical block and the positioning plate.

[0011] Preferably, a fixing plate is fixedly connected to the inner side of the limiting groove, and a sliding rod is slidably connected to the inner side of the fixing plate.

[0012] Preferably, one end of the slide rod is fixedly connected to the limiting block, and a second spring is movably connected between the fixing plate and the limiting block.

[0013] Compared with the prior art, this utility model has the following beneficial effects: This quick-release and disassembly structure for an extruder head filter allows the operator to rotate the extruder head, causing the threaded retaining ring to unscrew from the inside of the connecting ring, thus separating the extruder head from the extruder barrel. At this point, the extruder head is open, facilitating the disassembly and assembly of the filter. Next, the operator gently presses upwards from the lower end of the hollow positioning ring, causing the connecting rod to slide within the limiting hole on the inner side of the positioning plate. This allows the limiting block to move from between the hemispherical block and the moving block to the lower end of the moving block. Simultaneously, the moving block, through the action of the limiting block, moves into the inner side of the hemispherical block, causing the disassembly and assembly mechanism to disengage from the locking mechanism. Then, the slider slides out from the inner side of the groove, allowing the hollow positioning ring to be removed. Next, apply upward force from below the hollow positioning ring to push out and replace the filter screen, completing the quick installation and removal of the filter screen. Then, push the slider into the slide groove, which is movably connected between the fixed plate and the limiting block by the second spring. This allows the limiting block to extend and retract, thereby squeezing the lower end of the hemispherical block and fixing the filter screen inside the extrusion cylinder. Finally, the operator rotates the extrusion head again and screws the threaded retaining ring into the inner side of the connecting ring to complete the installation. This utility model, by providing a locking mechanism, allows for quick installation and removal of the filter screen when it needs to be installed or removed. The operation is simple and convenient. At the same time, the filter screen is installed inside the extrusion cylinder, avoiding the risk of material leakage caused by poor sealing due to the filter screen being connected between the extrusion cylinder and the extrusion head. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a quick-disassembly and assembly structure for an extruder head filter according to the present invention;

[0015] Figure 2 A partial structural explosion of the quick-disassembly and assembly structure of the extruder head filter of this utility model. Figure 1 ;

[0016] Figure 3 A partial structural explosion of the quick-disassembly and assembly structure of the extruder head filter of this utility model. Figure 2 ;

[0017] Figure 4 This is a partial cross-sectional view of a quick-release and detachable structure for an extruder die head filter according to the present invention. Figure 1 ;

[0018] Figure 5 A partial structural explosion of the quick-disassembly and assembly structure of the extruder head filter of this utility model. Figure 3 ;

[0019] Figure 6 A partial structural explosion of the quick-disassembly and assembly structure of the extruder head filter of this utility model. Figure 4 ;

[0020] Figure 7 This is a partial cross-sectional view of a quick-release and detachable structure for an extruder die head filter according to the present invention. Figure 2 .

[0021] In the diagram: 1. Extrusion head; 2. Threaded retaining ring; 3. Connecting ring; 4. Extrusion cylinder; 5. Slide groove; 6. Slider; 7. Hollow positioning ring; 8. Assembly / disassembly mechanism; 81. Fixed column; 82. Limiting rod; 83. Moving block; 84. Hemispherical block; 85. Connecting rod; 86. First spring; 9. Positioning plate; 10. Locking mechanism; 101. Limiting groove; 102. Fixed plate; 103. Slide rod; 104. Limiting block; 105. Second spring. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1-7 As shown, a quick-release and detachable structure for an extruder head filter includes an extruder head 1 and an extrusion cylinder 4. A threaded retainer 2 is fixedly connected to the upper end of the extruder head 1, and a connecting ring 3 is threadedly connected to the outer side of the threaded retainer 2. The upper end of the connecting ring 3 is fixedly connected to the extrusion cylinder 4. A hollow positioning ring 7 is movably connected to the inner side of the extrusion cylinder 4, and a filter screen is installed on the inner side of the hollow positioning ring 7. A disassembly and assembly mechanism 8 is provided at the upper end of the hollow positioning ring 7. The disassembly and assembly mechanism 8 includes two sets of symmetrical fixing posts 81. The lower end of the fixing posts 81 is fixedly connected to the hollow positioning ring 7, and a positioning plate 9 is movably connected above the fixing posts 81. The positioning plate 9 is fixedly connected to the extrusion cylinder 4. A limit hole is opened on the inner side of the positioning plate 9. A locking mechanism 10 is provided on the inner side of the extrusion cylinder 4. The locking mechanism 10 includes two sets of symmetrical limit grooves 101. The limit grooves 101 are opened on the inner side of the extrusion cylinder 4, and a limit block 104 is movably connected to the inner side of the limit grooves 101.

[0024] In this embodiment, two sets of symmetrical grooves 5 are provided on the inner side of the extrusion cylinder 4, and sliders 6 are movably connected to the inner side of the grooves 5. The hollow positioning ring 7 is fixedly connected between the two sets of sliders 6.

[0025] Specifically, a filter screen is installed on the inner side of the hollow positioning ring 7, and the slider 6 can drive the hollow positioning ring 7 to slide on the inner side of the slide groove 5, thereby facilitating the installation and removal of the filter screen.

[0026] In this embodiment, a limiting rod 82 is fixedly connected to the upper end of the fixed column 81, a moving block 83 is slidably connected to the outer side of the limiting rod 82, and a hemispherical block 84 is fixedly connected to the upper end of the limiting rod 82.

[0027] Specifically, by movably connecting the movable block 83 between the fixed column 81 and the hemispherical block 84, the hollow positioning ring 7 can be quickly assembled and disassembled inside the extrusion cylinder 4.

[0028] In this embodiment, the inner side of the hemispherical block 84 is in contact with the upper end of the moving block 83, and a connecting rod 85 is fixedly connected to the upper end of the hemispherical block 84. The connecting rod 85 is slidably connected to the inner side of the limiting hole.

[0029] Specifically, the inner side of the hemispherical block 84 is in contact with the upper end of the moving block 83, at which point the connecting rod 85 slides inside the limiting hole.

[0030] In this embodiment, a first spring 86 is provided on the outer side of the connecting rod 85, and the first spring 86 is movably connected between the hemispherical block 84 and the positioning plate 9.

[0031] Specifically, a first spring 86 is provided on the outside of the connecting rod 85, and the first spring 86 is movably connected between the hemispherical block 84 and the positioning plate 9.

[0032] In this embodiment, a fixing plate 102 is fixedly connected to the inner side of the limiting groove 101, and a sliding rod 103 is slidably connected to the inner side of the fixing plate 102.

[0033] Specifically, a fixing plate 102 is fixedly connected to the inner side of the limiting groove 101, and a sliding rod 103 is slidably connected to the inner side of the fixing plate 102.

[0034] In this embodiment, one end of the slide bar 103 is fixedly connected to the limiting block 104, and the fixing plate 102 and the limiting block 104 are movably connected together by a second spring 105.

[0035] Specifically, the extension and retraction force of the second spring 105 can cause the limiting block 104 to move back and forth inside the limiting groove 101, thereby locking or releasing the disassembly and assembly mechanism 8.

[0036] It should be noted that this utility model is a quick-release and disassembly structure for an extruder head filter. During use, the operator rotates the extruder head 1, causing the threaded retaining ring 2 to unscrew from the inside of the connecting ring 3, thus separating the extruder head 1 from the extrusion cylinder 4. At this point, the extruder head is open, facilitating the disassembly and assembly of the filter. Next, the operator gently presses upwards from the lower end of the hollow positioning ring 7, causing the connecting rod 85 to slide within the limiting hole on the inner side of the positioning plate 9. This allows the limiting block 104 to move from between the hemispherical block 84 and the moving block 83 to the lower end of the moving block 83. Simultaneously, the moving block 83, through the movement of the limiting block 104, can move into the hemispherical block 84. The inner side of the filter screen is then disengaged from the locking mechanism 10, and the slider 6 slides out from the inner side of the groove 5. The hollow positioning ring 7 can then be removed. Next, the operator applies upward force from below the hollow positioning ring 7 to push out the filter screen for replacement, thus completing the quick disassembly and assembly of the filter screen. Then, the slider 6 is pushed into the groove 5 and is movably connected between the fixed plate 102 and the limiting block 104 by the second spring 105. This allows the limiting block 104 to extend and retract, thereby squeezing the lower end of the hemispherical block 84 and fixing the filter screen to the inner side of the extrusion cylinder 4. Finally, the operator rotates the extrusion head 1 again, and the threaded retaining ring 2 and the connecting ring 3 are threadedly connected, completing the installation.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-release and detachable structure for an extruder head filter screen, comprising an extruder head (1) and an extruder barrel (4), characterized in that: A threaded retaining ring (2) is fixedly connected to the upper end of the extrusion head (1). A connecting ring (3) is threadedly connected to the outer side of the threaded retaining ring (2). The upper end of the connecting ring (3) is fixedly connected to the extrusion cylinder (4). A hollow positioning ring (7) is movably connected to the inner side of the extrusion cylinder (4). A filter screen is installed on the inner side of the hollow positioning ring (7). A disassembly and assembly mechanism (8) is provided at the upper end of the hollow positioning ring (7). The disassembly and assembly mechanism (8) includes two sets of symmetrical fixed columns (81). The lower end of the fixed column (81) A positioning plate (9) is movably connected above the fixed column (81) and fixedly connected to the hollow positioning ring (7). The positioning plate (9) is fixedly connected to the extrusion cylinder (4). A limiting hole is opened on the inner side of the positioning plate (9). A locking mechanism (10) is provided on the inner side of the extrusion cylinder (4). The locking mechanism (10) includes two sets of symmetrical limiting grooves (101). The limiting grooves (101) are opened on the inner side of the extrusion cylinder (4). A limiting block (104) is movably connected to the inner side of the limiting grooves (101).

2. The quick-release and disassembly structure for an extruder head filter screen according to claim 1, characterized in that: The inner side of the extrusion cylinder (4) is provided with two sets of symmetrical sliding grooves (5), and the inner side of the sliding grooves (5) is movably connected with sliders (6). The hollow positioning ring (7) is fixedly connected between the two sets of sliders (6).

3. The quick-release and disassembly structure for an extruder head filter screen according to claim 1, characterized in that: The upper end of the fixed column (81) is fixedly connected to a limiting rod (82), a moving block (83) is slidably connected to the outer side of the limiting rod (82), and a hemispherical block (84) is fixedly connected to the upper end of the limiting rod (82).

4. The quick-release and disassembly structure for an extruder head filter screen according to claim 3, characterized in that: The inner side of the hemispherical block (84) is in contact with the upper end of the moving block (83), and a connecting rod (85) is fixedly connected to the upper end of the hemispherical block (84). The connecting rod (85) is slidably connected to the inner side of the limiting hole.

5. The quick-release and detachable structure for an extruder die head filter screen according to claim 4, characterized in that: A first spring (86) is provided on the outside of the connecting rod (85), and the first spring (86) is movably connected between the hemispherical block (84) and the positioning plate (9).

6. The quick-release and disassembly structure for an extruder die head filter according to claim 1, characterized in that: A fixing plate (102) is fixedly connected to the inner side of the limiting groove (101), and a sliding rod (103) is slidably connected to the inner side of the fixing plate (102).

7. The quick-release and disassembly structure for an extruder die head filter according to claim 6, characterized in that: One end of the slide bar (103) is fixedly connected to the limiting block (104), and the fixing plate (102) and the limiting block (104) are movably connected together by a second spring (105).

Images