Extrusion device with nozzle convenient to replace

Abstract

The utility model discloses an extrusion device convenient for replacing a nozzle, which comprises an extruder, the extruder is movably connected with the nozzle, the outer surface of the nozzle is fixedly connected with a connecting block, the connecting block is fixedly connected with two butt joint blocks, and the extruder is fixedly connected with two concave blocks. Through the arrangement of the movable block, the movable plate, the limiting block and other structures, when the nozzle needs to be taken down from the extruder to be replaced, the movable plate is pulled firstly, so that the limiting block cannot influence the movement of the movable block, then the movable block is pulled, and fixation between the extruder and the nozzle can be relieved; the extruder and the nozzle can be disassembled without external tools such as a wrench, the sliding block, the movable block, the fixed block and the spring can be fixed by inserting the limiting block into the limiting groove, the fixed block cannot move in a reset mode, and then subsequent connection work between the extruder and the nozzle is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of extruders, in particular to an extrusion device which is convenient for replacing a nozzle. Background Art

[0002] An extruder is a mechanical device that can be widely used in multiple processing fields. The working principle of an extruder is to push the material forward through a rotating screw, and heat, mix and soften it in the barrel. The material is pushed by the screw and passes through the die nozzle to extrude products of specific shapes and sizes.

[0003] In the prior art, the nozzle of an extruder on the market is usually connected to the extruder by a flange bolt. When the nozzle of the extruder is aged and damaged after a long period of use, the nozzle of the extruder needs to be removed for replacement. However, the nozzle of the extruder and the extruder are connected and fixed by bolts, so it is necessary to use a wrench or other tools to unscrew the bolts before the nozzle and the extruder can be separated. After the bolts are in contact with the air for a period of time, oxidation and rust may occur. If the bolts are rusted, it will increase the difficulty of removing the bolts, which may affect the replacement of the nozzle. Therefore, an extrusion device that is easy to replace the nozzle is needed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art, and provides an extrusion device that is easy to replace the nozzle. Through the arrangement of structures such as a movable block, a movable plate and a limit block, when the nozzle needs to be removed from the extruder for replacement, the movable plate is first pulled so that the limit block does not affect the movement of the movable block, and then the movable block is pulled to release the fixation between the extruder and the nozzle, so that the disassembly work between the extruder and the nozzle can be completed without using external tools such as a wrench, and by inserting the limit block into the limit groove, the slider, the movable block, the fixed block and the spring can be fixed so that the fixed block does not move to reset, thereby facilitating the subsequent connection work between the extruder and the nozzle. Through the arrangement of structures such as a docking block, a docking groove and a fixed block, when the extruder and the nozzle need to be installed, the docking block is inserted into the docking groove, and then the fixed block is inserted into the fixed groove, so that the installation between the extruder and the nozzle can be completed, and the connection and fixation between the extruder and the nozzle can be achieved without using bolts, thereby avoiding the subsequent nozzle replacement work affected by the rust problem of the bolts, saving time and effort.

[0005] The utility model also provides an extrusion device with the above-mentioned easy-to-replace nozzle, comprising an extruder, the extruder is movably connected with a nozzle, the outer surface of the nozzle is fixedly connected with a connecting block, the connecting block is fixedly connected with two docking blocks, the extruder is fixedly connected with two concave blocks, and both of the two concave blocks are provided with docking grooves.

[0006] The inner surfaces of the two concave blocks are fixedly connected to two limit rods, the outer surfaces of the four limit rods are slidably connected to sliders, the corresponding two sliders are fixedly connected to the same movable block, the two movable blocks are fixedly connected to fixed blocks, and the two docking blocks are provided with fixed grooves.

[0007] Two connecting rods are fixedly connected to the two concave blocks, and the same movable plate is slidably connected to the corresponding two connecting rods. The left surfaces of the two movable plates are fixedly connected to the limiting blocks, and the two movable blocks are provided with limiting grooves.

[0008] According to the extrusion device that is easy to replace the nozzle, a spring is slidably sleeved on the outer surface of the limit rod, one end of the spring is fixedly connected to the side surface of the slider, and the end of the spring away from the slider is fixedly connected to the side inner wall of the recessed block, so that the fixed block can quickly enter the fixed groove.

[0009] According to the extrusion device that is convenient for replacing nozzles, a slide groove is provided on the docking block, and the outer surface of the slider is slidably connected to the slide groove, so that the slider can only move in the horizontal direction.

[0010] According to the extrusion device that is easy to replace the nozzle, the side surface of the connecting rod is fixedly connected with an anti-slip block, and the number of the anti-slip blocks is multiple and distributed in a rectangular array to prevent the movable plate from detaching from the connecting rod.

[0011] According to the extrusion device that is easy to replace the nozzle, the connecting rod passes through the movable plate, and the limit block is adapted to the limit groove. By inserting the limit block into the limit groove, the fixed block can be fixed, thereby facilitating the subsequent connection between the extruder and the nozzle.

[0012] According to the extrusion device for facilitating nozzle replacement, the outer surfaces of the two docking blocks are movably connected to the two docking grooves respectively, and the outer surfaces of the two fixing blocks are movably connected to the two fixing grooves respectively.

[0013] According to the extrusion device that is convenient for replacing nozzles, the number of the springs is multiple and distributed in a rectangular array.

[0014] According to the extrusion device that is convenient for replacing nozzles, the number of the slide grooves is multiple and distributed in a rectangular array.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is an overall structural diagram of an extrusion device that is easy to replace the nozzle of the utility model;

[0018] Figure 2 This is a schematic structural diagram of a concave block portion of an extrusion device that is convenient for replacing a nozzle according to the utility model;

[0019] Figure 3 This is a structural schematic diagram of a cross-sectional portion of a docking block of an extrusion device that is convenient for replacing a nozzle according to the utility model;

[0020] Figure 4 It is a structural schematic diagram of the cross-section of a concave block of an extrusion device for facilitating nozzle replacement according to the utility model;

[0021] Figure 5 The utility model is a schematic structural diagram of a movable plate cross-section portion of an extrusion device for facilitating nozzle replacement.

[0022] Legend:

[0023] 1. Extruder; 2. Nozzle; 3. Connecting block; 4. Docking block; 5. Concave block; 6. Docking groove; 7. Limit rod; 8. Slider; 9. Movable block; 10. Fixed block; 11. Fixed groove; 12. Spring; 13. Slide; 14. Connecting rod; 15. Movable plate; 16. Limit block; 17. Anti-slip block; 18. Limit groove. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-5 The utility model embodiment is an extrusion device that is easy to replace the nozzle, which includes an extruder 1, a nozzle 2 is movably connected to the extruder 1, a connecting block 3 is fixedly connected to the outer surface of the nozzle 2, two docking blocks 4 are fixedly connected to the connecting block 3, two concave blocks 5 are fixedly connected to the extruder 1, and the two concave blocks 5 are both provided with docking grooves 6. The outer surfaces of the two docking blocks 4 are movably connected to the two docking grooves 6 respectively.

[0026] Two limit rods 7 are fixedly connected to the inner surfaces of the two concave blocks 5, and sliders 8 are slidably connected to the outer surfaces of the four limit rods 7. The corresponding two sliders 8 are fixedly connected to the same movable block 9, and the two movable blocks 9 are fixedly connected to fixed blocks 10. Fixed grooves 11 are provided on the two docking blocks 4. A spring 12 is slidably sleeved on the outer surface of the limit rod 7. One end of the spring 12 is fixedly connected to the side surface of the slider 8, and the end of the spring 12 away from the slider 8 is fixedly connected to the side inner wall of the concave block 5. The number of springs 12 is multiple and distributed in a rectangular array. A slide groove 13 is provided on the docking block 4. The outer surface of the slider 8 is slidably connected to the slide groove 13. The number of slide grooves 13 is multiple and distributed in a rectangular array. The outer surfaces of the two fixed blocks 10 are movably connected to the two fixed grooves 11 respectively.

[0027] Two connecting rods 14 are fixedly connected to the two concave blocks 5, and the same movable plate 15 is slidably connected to the corresponding two connecting rods 14. The left surfaces of the two movable plates 15 are fixedly connected to limiting blocks 16. Limiting grooves 18 are provided on the two movable blocks 9. Anti-slip blocks 17 are fixedly connected to the side surfaces of the connecting rods 14. The number of anti-slip blocks 17 is multiple and distributed in a rectangular array. The connecting rods 14 pass through the movable plates 15, and the limiting blocks 16 are adapted to the limiting grooves 18.

[0028] Working principle: when the nozzle 2 needs to be disassembled for replacement, first pull the movable plate 15 to move the movable plate 15 on the connecting rod 14. At the same time, under the action of the anti-detachment block 17, the movable plate 15 can be prevented from being separated from the connecting rod 14, and the moving movable plate 15 will drive the limit block 16 to move. When the moving limit block 16 does not affect the movement of the movable block 9, pull the movable block 9 to make the movable block 9 drive the slider 8 to move horizontally on the limit rod 7. At the same time, the moving slider 8 will squeeze the spring 12 on the inner wall of the concave block 5, so that The spring 12 is in a tightened state, and the movable block 9 drives the fixed block 10 and the limit groove 18 to move. When the movable fixed block 10 is separated from the fixed groove 11, the fixation of the docking block 4 can be released, thereby releasing the fixation between the extruder 1 and the nozzle 2. When the movable limit groove 18 corresponds to the limit block 16, the movable plate 15 is pushed, so that the movable plate 15 drives the limit block 16 to move in the opposite direction. When the movable limit block 16 is inserted into the limit groove 18, the slider 8, the movable block 9 and the fixed block 10 can be fixed. The spring 12 is fixed, so that the spring 12 is always in a taut state, and then the nozzle 2 is pulled, so that the nozzle 2, the connecting block 3 and the docking block 4 can be removed from the extruder 1, and then the docking block 4 on the new nozzle 2 of the same type is inserted into the docking groove 6, so that the initial connection between the extruder 1 and the nozzle 2 can be achieved, and the fixed block 10 can correspond to the fixed groove 11, and then the movable plate 15 is pulled, so that the movable movable plate 15 can drive the limit block 16 to move, when the movable limit block 16 is separated from the limit groove 18 After that, the fixation of the slider 8, the movable block 9, the fixed block 10 and the spring 12 is released, so that the spring 12 can rebound, and the rebounding spring 12 can drive the slider 8 to reset in the slide groove 13, so that the movable slider 8 can simultaneously drive the movable block 9 and the fixed block 10 to move. When the movable fixed block 10 enters the fixed groove 11, the docking block 4 can be fixed, so that the docking block 4 can no longer be separated from the docking groove 6, thereby realizing the connection between the extruder 1 and the connecting block 3, and then the movable plate 15 can be released.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An extrusion device that is easy to replace the nozzle, characterized in that: include: An extruder (1), wherein a nozzle (2) is movably connected to the extruder (1), a connecting block (3) is fixedly connected to the outer surface of the nozzle (2), two docking blocks (4) are fixedly connected to the connecting block (3), and two concave blocks (5) are fixedly connected to the extruder (1), and both of the two concave blocks (5) are provided with docking grooves (6); The inner surfaces of the two concave blocks (5) are fixedly connected to two limiting rods (7), the outer surfaces of the four limiting rods (7) are slidably connected to sliders (8), the corresponding two sliders (8) are fixedly connected to the same movable block (9), the two movable blocks (9) are fixedly connected to fixed blocks (10), and the two docking blocks (4) are provided with fixed grooves (11); Two connecting rods (14) are fixedly connected to the two concave blocks (5), and the same movable plate (15) is slidably connected to the corresponding two connecting rods (14). The left surfaces of the two movable plates (15) are fixedly connected to the limiting blocks (16), and the two movable blocks (9) are provided with limiting grooves (18).

2. The extrusion device for facilitating nozzle replacement according to claim 1, characterized in that: The outer surface of the limiting rod (7) is slidably sleeved with a spring (12), one end of the spring (12) is fixedly connected to the side surface of the slider (8), and the end of the spring (12) away from the slider (8) is fixedly connected to the side inner wall of the recessed block (5).

3. The extrusion device for facilitating nozzle replacement according to claim 1, characterized in that: The docking block (4) is provided with a slide groove (13), and the outer surface of the sliding block (8) is slidably connected to the slide groove (13).

4. The extrusion device for facilitating nozzle replacement according to claim 1, characterized in that: An anti-slip block (17) is fixedly connected to the side surface of the connecting rod (14), and the anti-slip blocks (17) are multiple and distributed in a rectangular array.

5. The extrusion device for facilitating nozzle replacement according to claim 1, characterized in that: The connecting rod (14) passes through the movable plate (15), and the limiting block (16) is matched with the limiting groove (18).

6. The extrusion device for facilitating nozzle replacement according to claim 1, characterized in that: The outer surfaces of the two docking blocks (4) are movably connected to the two docking grooves (6) respectively, and the outer surfaces of the two fixing blocks (10) are movably connected to the two fixing grooves (11) respectively.

7. The extrusion device for facilitating nozzle replacement according to claim 2, characterized in that: The springs (12) are multiple in number and distributed in a rectangular array.

8. The extrusion device for facilitating nozzle replacement according to claim 3, characterized in that: The number of the slide grooves (13) is multiple and distributed in a rectangular array.

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