Three-screw extruder for strong mixing

Abstract

The utility model discloses a three-screw extruder for strong mixing. The three-screw extruder comprises an extruder body and a cleaning assembly, the extruder body comprises a driving box fixedly installed on one side of the extruder body and transmission shafts arranged at the front end of the driving box. According to the three-screw extruder for strong mixing disclosed by the utility model, the upper heating plate and the lower heating plate at the upper end and the lower end of the side heating plate on the extruder body can be stretched to be opened and rotated to the outer side through the movable arm, so that the inner end of the side heating plate, the middle part of the upper heating plate and the middle part of the lower heating plate can be comprehensively and uniformly cleaned; three groups of screw rod pieces at the inner ends of the side heating plates can be taken down for comprehensive and uniform cleaning, so that the cleaning convenience in the extruder body is improved, and meanwhile, clamping seats at the inner ends of the upper heating plate and the lower heating plate and sealing strips on the two sides can be conveniently taken down; and the stable installation of the screw rod piece after the inner end of the extruder body is cleaned and the connection sealing performance between the upper heating plate and the side heating plate and between the lower heating plate and the side heating plate can be ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of three-screw extruders, specifically a three-screw extruder for strong mixing. Background Technology

[0002] Three-screw extruders are important plastic processing equipment, widely used in the processing of polymer materials such as plastics and rubber. A three-screw extruder is a device that uses three parallel rotating screws to melt and extrude materials. Its core component is three parallel screws, usually arranged in a straight line. Compared with twin-screw extruders, three-screw extruders have two meshing points, a more complex structure, and the advantage of strong mixing performance.

[0003] Existing three-screw extruders, such as the one disclosed in publication number CN219789220U, have the advantage of disassembling the drive motor. However, the internal extrusion chamber and screw of this three-screw extruder are not convenient to open and disassemble for thorough cleaning, making it difficult to perform uniform and thorough cleaning after separation. Therefore, we propose a three-screw extruder for strong mixing. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A three-screw extruder for strong mixing includes: an extruder body and a cleaning assembly; the extruder body includes a drive box fixedly installed on one side and drive shafts arranged and installed at the front end of the drive box; the cleaning assembly includes a side heating plate fixedly installed at the front end of the extruder body, an upper heating plate and a lower heating plate movably installed at the upper and lower ends of the side heating plate respectively, a screw component movably installed on the drive shaft at the inner end of the side heating plate, fixed blocks arranged and fixedly installed on one side of the upper heating plate and the lower heating plate, a first double-headed cylinder fixedly installed between the fixed blocks, a movable arm fixedly installed at the outer end of the first double-headed cylinder, and a rotary seat rotatably connected to one side of the movable arm.

[0007] Preferably, each of the drive shafts is also fixedly mounted with a retaining pin at its front end, and the drive shafts are all movably located within the side heating plate.

[0008] Preferably, a fixing plate is fixedly installed on one side of the screw component, and both the fixing plate and the screw component are provided with insertion holes, and the insertion holes are matched with the retaining shaft.

[0009] Preferably, a retainer is fixedly installed on one side of both the upper heating plate and the lower heating plate, and the retainer engages with the outer end of the drive shaft and the fixed plate.

[0010] Preferably, sealing strips are also fixedly installed on both sides of the upper heating plate and the lower heating plate, and sealing grooves are also provided on both the upper and lower ends of the side heating plate, and the sealing grooves and sealing strips are matched.

[0011] Preferably, a fixed arm is fixedly installed on one side of the extruder body, and a second double-headed cylinder is fixedly installed on one side of the fixed arm. The upper and lower sides of the second double-headed cylinder are fixedly installed with locking blocks. The upper heating plate and the lower heating plate are both provided with locking slots, and the locking blocks are matched and installed in the locking slots.

[0012] Preferably, a sealing plate is also movably mounted on the front end of the side heating plate by screws.

[0013] Preferably, the inner side of the rotating seat is fixed to the extruder body.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, the upper heating plate and the lower heating plate at the upper and lower ends of the heating plate on the upper side of the extruder body can be extended and opened and rotated to the outside via the movable arm, so as to clean the inner end of the side heating plate, the middle part of the upper heating plate and the middle part of the lower heating plate evenly. At the same time, the three sets of screw components at the inner end of the side heating plate can also be removed for even cleaning, thereby improving the cleaning convenience of the extruder body.

[0016] 2. In this utility model, the card holders at the inner ends of the upper heating plate and the lower heating plate, as well as the sealing strips on both sides, can also ensure the stable installation of the screw after the inner end of the extruder body is cleaned, as well as the sealing performance of the connection between the upper heating plate and the lower heating plate and the side heating plate.

[0017] 3. In this utility model, the upper heating plate and lower heating plate are easy to open, and the screw component connected to the front of the transmission shaft is also convenient for the inspection, maintenance and replacement of the screw component. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the present invention;

[0019] Figure 2 This is another perspective view of the present invention;

[0020] Figure 3 This is an adjustment diagram of the upper and lower heating plates of this utility model;

[0021] Figure 4 This is a structural diagram of the lower heating plate of this utility model;

[0022] Figure 5 This is a partially enlarged view of the screw component and transmission shaft of this utility model.

[0023] Figure label:

[0024] 100. Extruder body; 101. Drive box; 102. Drive shaft;

[0025] 200. Cleaning component; 201. Side heating plate; 202. Upper heating plate; 203. Lower heating plate; 204. Screw; 205. Fixing block; 206. First double-headed cylinder; 207. Movable arm; 208. Rotary seat; 209. Snap pin; 210. Fixing plate; 211. Insertion hole; 212. Snap seat; 213. Sealing strip; 214. Sealing groove; 215. Fixing arm; 216. Second double-headed cylinder; 217. Snap block; 218. Snap slot; 219. Screw; 220. Sealing plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a three-screw extruder for strong mixing.

[0028] Example 1:

[0029] Combination Figure 1-5As shown, this utility model provides a three-screw extruder for strong mixing, comprising: an extruder body 100 and a cleaning assembly 200; the extruder body 100 includes a drive box 101 fixedly installed on one side and a drive shaft 102 arranged at the front end of the drive box 101; the cleaning assembly 200 includes a side heating plate 201 fixedly installed at the front end of the extruder body 100, an upper heating plate 202 and a lower heating plate 203 movably installed at the upper and lower ends of the side heating plate 201 respectively, and the drive shaft 102 at the inner end of the side heating plate 201 is equipped with... The screw component 204, the upper heating plate 202, and the lower heating plate 203 are all fixedly mounted on one side with fixed blocks 205. A first double-headed cylinder 206 is fixedly mounted between the fixed blocks 205. A movable arm 207 is fixedly mounted on the outer end of the first double-headed cylinder 206. A rotating seat 208 is rotatably connected to one side of the movable arm 207. A retaining shaft 209 is also fixedly mounted on the front end of the drive shaft 102, and the drive shaft 102 is movably positioned within the side heating plate 201. A fixed plate 210 is also fixedly mounted on one side of the screw component 204. Both the fixed plate 210 and the screw component 204 are provided with insertion holes 211, which are matched with the retaining shaft 209. A retaining seat 212 is fixedly installed on one side of the upper heating plate 202 and the lower heating plate 203, and the retaining seat 212 engages with the outer end of the drive shaft 102 and the fixed plate 210. Sealing strips 213 are also fixedly installed on both sides of the upper heating plate 202 and the lower heating plate 203. Sealing grooves 214 are also provided on both the upper and lower ends of the side heating plate 201, and the sealing grooves 214 are connected to the sealing strips 213. In addition, a fixed arm 215 is fixedly installed on one side of the extruder body 100, and a second double-headed cylinder 216 is fixedly installed on one side of the fixed arm 215. The upper and lower sides of the second double-headed cylinder 216 are also fixedly installed with locking blocks 217. The upper heating plate 202 and the lower heating plate 203 are also provided with locking slots 218 on one side, and the locking blocks 217 are matched and installed in the locking slots 218. The front end of the side heating plate 201 is also movably installed with a sealing plate 220 by screws 219. The inner side of the rotating seat 208 is fixed to the extruder body 100.

[0030] Specifically, a three-screw extruder is an important plastic processing equipment, widely used in the processing of polymer materials such as plastics and rubber. The three-screw extruder has two meshing points, a more complex structure, and strong mixing performance. The upper heating plate 202 and lower heating plate 203 at the upper and lower ends of the side heating plate 201 on the extruder body 100 can be extended and rotated to the outside via the movable arm 207, thereby thoroughly and evenly cleaning the inner end of the side heating plate 201, the middle of the upper heating plate 202, and the middle of the lower heating plate 203. Simultaneously, the three sets of screw components 204 at the inner end of the side heating plate 201 can also be removed for thorough and even cleaning. To improve the ease of cleaning inside the extruder body 100, the retaining seats 212 at the inner ends of the upper heating plate 202 and lower heating plate 203, as well as the sealing strips 213 on both sides, also ensure the stable installation of the screw component 204 after cleaning the inner end of the extruder body 100, and the sealing of the connection between the upper heating plate 202 and lower heating plate 203 and the side heating plate 201. The easily openable upper heating plate 202 and lower heating plate 203, as well as the screw component 204 connected to the front of the drive shaft 102, also facilitate the inspection, maintenance, and replacement of the screw component 204. The first double-headed cylinder 206 between the fixed blocks 205 on one side of the movable arm 207 is mainly used for opening and closing the side heating plate. The upper heating plate 202 and lower heating plate 203 at the upper and lower ends of the heating plate 201 are connected to a rotating seat 208 via a movable arm 207. This facilitates the rotational adjustment of the upper heating plate 202 and lower heating plate 203 after opening and closing. The retaining shaft 209 connected to the front end of the drive shaft 102 is mainly used to engage with the insertion hole 211 in the screw component 204. Thus, through the retaining seats 212 on the upper heating plate 202 and lower heating plate 203, they engage with the fixed plate 210 and both ends of the drive shaft 102, ensuring the stability of the connection between the drive shaft 102 and the screw component 204 and facilitating disassembly and assembly. The sealing grooves 214 opened at both ends of the upper heating plate 201 are mainly for the upper heating plate 202. The sealing strip 213 at the upper end of the lower heating plate 203 is matched and connected to ensure the sealing of the connection between the upper heating plate 202 and the lower heating plate 203 and the side heating plate 201. The second double-headed cylinder 216 installed on the fixed arm 215 is mainly fixed in the slots 218 on the upper heating plate 202 and the lower heating plate 203 by the locking blocks 217 at its upper and lower ends, so as to clamp and fix the side heating plate 201, the upper heating plate 202 and the lower heating plate 203. The sealing plate 220 at the front end of the side heating plate 201 is movably installed by screws 219. It is mainly the discharge port. It can be disassembled to facilitate the removal of the screw part 204 at the inner end of the side heating plate 201.

[0031] Working principle and usage process of this utility model:

[0032] When thoroughly cleaning the inner cavity and screw component 204 of the extruder body 100 after use, first activate the second double-headed cylinder 216 and the first double-headed cylinder 206 on the fixed arm 215 and the movable arm 207 in sequence to extend the upper heating plate 202 and lower heating plate 203 at the upper and lower ends of the side heating plate 201. After the upper heating plate 202 and lower heating plate 203 are extended, the movable arm 207 and the upper and lower heating plates 202 and lower heating plates 203 on its upper and lower sides can be rotated by the rotating seat 208 to rotate the upper heating plate 202 and lower heating plate 203 to... On the outside, after the upper heating plate 202 and the lower heating plate 203 are rotated, the middle part can be cleaned evenly and thoroughly. The side heating plate 201 between the upper heating plate 202 and the lower heating plate 203 will also be exposed. At this time, after removing the sealing plate 220 at the front end of the side heating plate 201, the three sets of screw parts 204 at the inner end of the side heating plate 201 can be removed in sequence. The removed screw parts 204 and the inner end of the side heating plate 201 can be cleaned evenly and thoroughly in sequence, thereby completing the convenient and comprehensive cleaning of the extruder body 100 after use.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A triple screw extruder for intensive mixing, characterized in that, Include: Extruder body (100), cleaning assembly (200); The extruder body (100) includes a drive box (101) fixedly installed on one side, a transmission shaft (102) arranged and installed at the front end of the drive box (101); The cleaning assembly (200) includes a side heating plate (201) fixedly installed at the front end of the extruder body (100), an upper heating plate (202) and a lower heating plate (203) movably installed at the upper and lower ends of the side heating plate (201) respectively, a screw part (204) movably installed on the transmission shaft (102) at the inner end of the side heating plate (201), a fixed block (205) fixedly installed on one side of the upper heating plate (202) and the lower heating plate (203), a first double-headed cylinder (206) fixedly installed between the fixed blocks (205), an activity arm (207) fixedly installed at the outer end of the first double-headed cylinder (206), and a rotating seat (208) rotatably connected on one side of the activity arm (207).

2. A triple screw extruder for intensive mixing according to claim 1, characterized in that The transmission shaft (102) is also fixedly installed with a shaft (209) at the front end, and the transmission shaft (102) is movably arranged in the side heating plate (201).

3. A triple screw extruder for intensive mixing according to claim 1, characterized in that The screw part (204) is also fixedly installed with a fixed disc (210) on one side, and the fixed disc (210) and the screw part (204) are also provided with a plug hole (211), and the plug hole (211) is matched with the shaft (209).

4. A triple screw extruder for intensive mixing according to claim 1, characterized in that The upper heating plate (202) and the lower heating plate (203) are also fixedly installed with a clamping seat (212) on one side, and the clamping seat (212) is clamped on the outer end of the transmission shaft (102) and the fixed disc (210).

5. A triple screw extruder for intensive mixing according to claim 1, characterized in that The upper heating plate (202) and the lower heating plate (203) are also arranged and fixedly installed with a sealing strip (213) on both sides, and the side heating plate (201) is also provided with a sealing groove (214) on both sides of the upper and lower ends, and the sealing groove (214) is matched with the sealing strip (213).

6. A triple screw extruder for intensive mixing according to claim 1, characterized in that The extruder body (100) is also fixedly installed with a fixed arm (215) on one side, and the fixed arm (215) is also arranged and fixedly installed with a second double-headed cylinder (216) on one side, and the second double-headed cylinder (216) is also fixedly installed with a clamping block (217) on the upper and lower sides, and the upper heating plate (202) and the lower heating plate (203) are also arranged and provided with a clamping groove (218) on one side, and the clamping block (217) is matched and installed in the clamping groove (218).

7. A triple screw extruder for intensive mixing according to claim 1, characterized in that The front end of the side heating plate (201) is also movably installed with a sealing plate (220) through a screw (219).

8. A triple screw extruder for intensive mixing according to claim 1, characterized in that The rotating seat (208) is fixedly installed on the extruder body (100) on the inner side.

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