An extrusion device for producing a plastic water-removing and defoaming master batch

By introducing an adjustment mechanism and a crushing component into the extrusion unit for producing plastic dewatering and defoaming masterbatch, the problems of thread shaft adhesion and clogging were solved, enabling precise adjustment and rapid crushing, improving the flexibility and stability of the equipment, and ensuring the uniformity and safety of the processing.

CN224374818UActive Publication Date: 2026-06-19广西合山华臻新材料有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
广西合山华臻新材料有限公司
Filing Date
2025-07-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing single-screw extruders used for producing defoaming and dewatering masterbatch for plastics, the screw shaft is located inside the feeding shell, which causes raw material to adhere, affecting the service life and easily causing blockage.

Method used

The system employs an adjustment mechanism and a crushing component. The screw drives the threaded sleeve and the moving plate to slide, thereby achieving precise adjustment of the discharge port size. A servo motor drives the stirring rod and the crushing blade to prevent raw materials from clumping and clogging.

Benefits of technology

It enables precise adjustment of raw material output, avoids blockages, improves equipment flexibility and stability, and ensures uniformity and safety in subsequent processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an extrusion device for producing plastic dewatering and defoaming masterbatch, including an extruder body. A feed frame is embedded on one side of the top of the extruder body, and a feed cylinder is fixedly installed on the top of the feed frame. An adjustment mechanism is provided inside the feed frame, and a crushing component is provided inside the feed cylinder. The adjustment mechanism includes a frame fixedly installed on one side of the feed frame, and an adjustment plate is slidably connected between the feed frame and the frame. A screw is rotatably connected to one side of the frame, and a movable plate is fixedly connected to the side of the adjustment plate near the frame. This allows for precise adjustment of the adjustment plate position, facilitating accurate adjustment of the discharge port size inside the feed frame by the operator. This allows the operator to adjust the raw material output according to the working requirements of the extruder body, greatly improving the flexibility of the device during use.
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Description

Technical Field

[0001] This utility model relates to the field of plastic dewatering and defoaming masterbatch production technology, specifically to an extrusion device for producing plastic dewatering and defoaming masterbatch. Background Technology

[0002] As is well known, the single-screw extruder for preparing dewatering and defoaming masterbatch for plastics is an auxiliary device used for the extrusion production of dewatering and defoaming masterbatch for plastics, and it has been widely used in the field of mechanical equipment.

[0003] Publication No. CN117921979A discloses a single-screw extruder for preparing dewatering and defoaming masterbatch for plastics. This device uses the rotation of the screw shaft to allow the discharge block to slide inside the second slide rail support, controlling the material's falling rate and improving the equipment's efficiency to adapt to the processing needs of different raw materials and prevent blockages caused by excessively rapid material feeding. The first drive shaft, driven by a motor, rotates a flap to push and feed the material, preventing blockages. However, this patent still has the following problems in practical use:

[0004] This device achieves the sliding of the discharge block inside the second slide rail bracket by rotating the threaded shaft, controlling the material falling rate, improving the working efficiency of the equipment to adapt to the processing needs of different raw materials, and avoiding blockage caused by excessive material discharge. The first drive shaft drives the rotation of the flap plate through the motor to push and feed the material to avoid blockage. However, the threaded shaft of this device is located inside the discharge housing, which may cause the falling raw material to adhere to the surface of the threaded shaft, which may affect the service life of the threaded shaft and cause inconvenience to the operators.

[0005] An extrusion device for producing dewatering and defoaming masterbatch for plastics is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an extrusion device for producing plastic dewatering and defoaming masterbatch, in order to solve the problems mentioned in the background art. Currently, the device achieves the sliding of the discharge block inside the second slide rail support by rotating the threaded shaft, thereby controlling the rate of material falling and improving the working efficiency of the equipment to meet the processing needs of different raw materials and avoiding blockage caused by excessive material feeding. The first drive shaft is set to drive the rotation of the flap plate through the motor to push and feed the material to a certain extent, thus avoiding blockage. However, the threaded shaft of this device is set inside the discharge shell, which may cause the falling raw material to adhere to the surface of the threaded shaft, which may affect the service life of the threaded shaft.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an extrusion device for producing plastic dewatering and defoaming masterbatch, comprising an extruder body, a feed frame embedded on one side of the top of the extruder body, and a feed cylinder fixedly installed on the top of the feed frame; an adjustment mechanism is provided inside the feed frame, and a crushing component is provided inside the feed cylinder;

[0008] The adjustment mechanism includes a frame fixedly installed on one side of the feed frame, an adjustment plate slidably connected between the feed frame and the frame, a screw rotatably connected to one side of the frame, a movable plate fixedly connected to the side of the adjustment plate near the frame, a threaded sleeve connected to the external thread of the screw, a fixed rod fixedly connected to one side of the frame, a sliding sleeve slidably connected to the external thread of the fixed rod, two ends of the movable plate fixedly connected to the threaded sleeve and the sliding sleeve respectively, a limit rod fixedly connected to the side of the movable plate away from the adjustment plate, one end of the limit rod penetrating the frame and slidably connected to the frame, and a scale groove opened on the top of each limit rod.

[0009] Preferably, a rotating rod is rotatably connected to the lower interior of the feed frame, and a dispersing blade is fixedly installed on the outside of the rotating rod, and a first servo motor is fixedly installed at one end of the rotating rod.

[0010] Preferably, the crushing assembly includes an end cap sleeved on the outer side of the top of the feed cylinder, and a stirring rod is rotatably connected inside the end cap. A second servo motor is fixedly installed on the top of the stirring rod, and a fixing sleeve is fixedly installed on the outside of the stirring rod. A crushing blade is welded to the outside of the fixing sleeve.

[0011] Preferably, each end cap is inlaid with a limiting tube, and a sliding rod is slidably connected inside the limiting tube. A baffle is fixedly connected to one end of the sliding rod, and a retraction spring is sleeved on the outside of the sliding rod. An insert block is fixedly connected to the side of the baffle away from the sliding rod. A slot is opened on the top outer side of the feed cylinder, and the insert block is inserted into the slot.

[0012] Preferably, a rotating block is fixedly connected to the end of the screw away from the adjusting plate.

[0013] Preferably, the outer side of the baffle is slidably connected to the inner side of the limiting tube.

[0014] Preferably, the bottom side of the first servo motor is fixedly connected to the feed frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: An extrusion device for producing plastic dewatering and defoaming masterbatch is described below: The operator rotates the screw inside the frame. The screw rotation drives the threaded sleeve to move, which in turn drives the moving plate to move. Simultaneously, the moving plate causes the sliding sleeve to slide outside the fixed rod. At this time, the adjusting plate slides inside the feed frame. The operator can observe the junction of the scale groove on the limit rod surface and the frame to determine the lateral adjustment range of the adjusting plate, thereby achieving precise adjustment of the adjusting plate position. This facilitates precise adjustment of the discharge port size inside the feed frame, allowing the operator to adjust the size according to the extruder... The device's operation is optimized to adjust the raw material output, significantly improving its flexibility. A second servo motor drives the rotation of the stirring rod, which in turn rotates multiple sets of fixed sleeves. These sleeves, in turn, drive multiple sets of crushing blades to pulverize the raw materials, achieving rapid pulverization and effectively preventing clumping and blockage of the feed inlet. This further improves the uniformity of subsequent processing of the plastic dewatering and defoaming masterbatch. The insertion of the insert block into the slot allows for quick installation and removal of the end cap, greatly enhancing the stability of the stirring rod and crushing blades and reducing the likelihood of separation between the end cap and the top of the feed cylinder.

[0016] 1. The operator rotates the screw inside the frame, which in turn moves the threaded sleeve, which in turn moves the moving plate. Simultaneously, the moving plate causes the sliding sleeve to slide outside the fixed rod. At this time, the adjusting plate slides inside the feed frame, and the limiting rod slides inside one side of the frame. The operator can observe the intersection of the scale groove on the limiting rod surface and the frame to determine the lateral adjustment range of the adjusting plate, thereby achieving precise adjustment of the adjusting plate position. This allows the operator to accurately adjust the size of the discharge port inside the feed frame, facilitating the adjustment of the raw material output according to the working requirements of the extruder. This greatly improves the flexibility of the device during use. The operator starts the first servo motor to drive the rotating rod to rotate. The rotation of the rotating rod causes the dispersing blade to disperse the falling raw material, effectively preventing blockage during the material's descent and further improving the smoothness of the raw material discharge.

[0017] 2. By starting the second servo motor, the stirring rod rotates, which in turn drives multiple sets of fixed sleeves to rotate. The rotation of the fixed sleeves then drives multiple sets of crushing blades to crush the raw materials, achieving rapid crushing and effectively preventing clumping and blockage of the feed inlet. This further improves the uniformity of subsequent processing of the plastic dewatering and defoaming masterbatch. The operator pulls the sliding rod, which slides inside the limiting tube. The movement of the sliding rod moves the baffle, which in turn compresses the contraction spring. The spring then contracts under pressure. The operator releases the sliding rod, and the spring's extension and return properties allow the insert block to connect with the slot, enabling quick installation and removal of the end cap. This significantly improves the stability of the stirring rod and crushing blades during operation, reduces the likelihood of separation between the end cap and the top of the feed cylinder, and enhances the safety of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of the adjustment mechanism in this utility model;

[0020] Figure 3 This is a partial top view of the adjustment mechanism in this utility model;

[0021] Figure 4 This is a cross-sectional view of the overall structure of the crushing component in this utility model;

[0022] Figure 5 This is a cross-sectional view of the overall structure of the limiting tube in this utility model.

[0023] In the diagram: 1. Extruder body; 101. Feed frame; 102. Feed cylinder; 2. Adjustment mechanism; 201. Frame; 202. Adjustment plate; 203. Screw; 204. Moving plate; 205. Threaded sleeve; 206. Fixed rod; 207. Sliding sleeve; 208. Limiting rod; 209. Scale groove; 210. Rotating rod; 211. Dispersing blade; 212. First servo motor; 213. Rotating block; 3. Crushing assembly; 301. End cover; 302. Stirring rod; 303. Second servo motor; 304. Fixed sleeve; 305. Crushing blade; 306. Limiting tube; 307. Sliding rod; 308. Baffle; 309. Contraction spring; 310. Insert block; 311. Slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides a technical solution: an extrusion device for producing plastic dewatering and defoaming masterbatch, including an extruder body 1, a feed frame 101 is embedded on one side of the top of the extruder body 1, and a feed cylinder 102 is fixedly installed on the top of the feed frame 101; an adjustment mechanism 2 is provided inside the feed frame 101, and a crushing component 3 is provided inside the feed cylinder 102.

[0026] The adjusting mechanism 2 includes a frame 201 fixedly installed on one side of the feed frame 101, with an adjusting plate 202 slidably connected between the feed frame 101 and the frame 201. A screw 203 is rotatably connected to one side of the frame 201. A movable plate 204 is fixedly connected to the adjusting plate 202 near the frame 201. A threaded sleeve 205 is threaded onto the outside of the screw 203. A fixing rod 206 is fixedly connected to one side of the frame 201, and a sliding sleeve 207 is slidably connected to the outside of the fixing rod 206. Both ends of the movable plate 204 are respectively connected to the threaded sleeve 205. The sliding sleeve 207 is fixedly connected, and the side of the moving plate 204 away from the adjusting plate 202 is fixedly connected to the limiting rod 208. One end of the limiting rod 208 passes through the frame 201 and is slidably connected to the frame 201. The top of the limiting rod 208 is provided with a scale groove 209, so as to achieve the effect of accurately adjusting the position of the adjusting plate 202. This makes it easier for the operator to accurately adjust the size of the discharge port inside the feed frame 101, and facilitates the operator to adjust the amount of raw material output according to the working requirements of the extruder body 1, which greatly improves the flexibility of the device during use.

[0027] A rotating rod 210 is rotatably connected to the lower interior of the feed frame 101, and a dispersing blade 211 is fixedly installed on the outside of the rotating rod 210. A first servo motor 212 is fixedly installed at one end of the rotating rod 210. The bottom side of the first servo motor 212 is fixedly connected to the feed frame 101. When the operator starts the first servo motor 212, it drives the rotating rod 210 to rotate. The rotation of the rotating rod 210 drives the dispersing blade 211 to disperse the falling raw material, thereby effectively avoiding the blockage of the raw material during the falling process and further improving the smoothness of the raw material discharge. A rotating block 213 is fixedly connected to the end of the screw 203 away from the adjusting plate 202. The rotation of the rotating block 213 drives the rotation of the screw 203, thereby facilitating the operation of the screw 203 by the operator.

[0028] The crushing component 3 includes an end cap 301 sleeved on the outer side of the top of the feed cylinder 102, and a stirring rod 302 is rotatably connected inside the end cap 301. A second servo motor 303 is fixedly installed on the top of the stirring rod 302, and a fixing sleeve 304 is fixedly installed on the outside of the stirring rod 302. A crushing blade 305 is welded to the outside of the fixing sleeve 304. This enables the raw materials to be crushed quickly, thereby effectively preventing the raw materials from clumping and blocking the feed port, and further improving the uniformity of subsequent processing of plastic dewatering and defoaming masterbatch.

[0029] Each end cap 301 has a limiting tube 306 embedded inside, and a sliding rod 307 is slidably connected inside the limiting tube 306. One end of the sliding rod 307 is fixedly connected to a baffle 308. The outside of the baffle 308 is slidably connected to the inside of the limiting tube 306. A retraction spring 309 is sleeved on the outside of the sliding rod 307. An insert block 310 is fixedly connected to the side of the baffle 308 away from the sliding rod 307. A slot 311 is opened on the top outer side of the feed cylinder 102, and the insert block 310 is inserted into the slot 311. This allows for quick installation and removal of the end cap 301, which greatly improves the stability of the stirring rod 302 and the crushing blade 305 during operation, reduces the phenomenon of separation between the end cap 301 and the top of the feed cylinder 102, and improves the safety of the equipment during use.

[0030] Working principle: Before using this extrusion device for producing plastic dewatering and defoaming masterbatch, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, when the operator rotates the screw 203 inside the frame 201, the rotation of the screw 203 causes the threaded sleeve 205 to move, which in turn causes the moving plate 204 to move. Simultaneously, the movement of the moving plate 204 causes the sliding sleeve 207 to slide outside the fixed rod 206. At this time, the adjusting plate 202 slides inside the feed frame 101, and the limiting rod 208 slides inside one side of the frame 201. The operator can observe the junction of the scale groove 209 on the surface of the limiting rod 208 and the frame 201 to determine the lateral adjustment range of the adjusting plate 202, thus achieving precise adjustment of the position of the adjusting plate 202. This allows staff to precisely adjust the size of the discharge port inside the feed frame 101, facilitating the adjustment of the raw material output according to the working requirements of the extruder body 1. This greatly improves the flexibility of the device during use. When the staff starts the first servo motor 212, it drives the rotating rod 210 to rotate. The rotation of the rotating rod 210 drives the dispersing blade 211 to disperse the falling raw material, thereby effectively preventing blockage during the falling process and further improving the smoothness of the raw material discharge. The rotation of the rotating block 213 drives the rotation of the screw 203, making it easier for the staff to operate the screw 203.

[0031] The raw materials are poured into the feed cylinder 102 by the operator. At this time, the adjusting plate 202 is in its extreme state, which isolates the internal space of the feed frame 101. Then, the operator puts the end cap 301 on the top outside of the feed cylinder 102. At this time, the operator starts the second servo motor 303 to drive the stirring rod 302 to rotate. The rotation of the stirring rod 302 drives the rotation of multiple sets of fixing sleeves 304. The rotation of the fixing sleeves 304 drives multiple sets of crushing blades 305 to crush the raw materials, thereby achieving a rapid crushing effect on the raw materials. This effectively avoids the phenomenon of raw materials clumping and blocking the feed port, and further improves the subsequent processing of plastic dewatering and defoaming masterbatch. To ensure uniform processing, the operator pulls the slide bar 307, which slides inside the limiting tube 306. The movement of the slide bar 307 causes the baffle 308 to move, which in turn compresses the contraction spring 309. The contraction spring 309 then contracts under pressure. When the operator releases the slide bar 307, the spring 309 extends and returns to its original position, allowing the insert block 310 to connect with the slot 311. This enables quick installation and removal of the end cover 301, significantly improving the stability of the stirring rod 302 and the crushing blade 305 during operation, reducing the likelihood of separation between the end cover 301 and the top of the feed cylinder 102, and enhancing the safety of the equipment during use.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An extrusion device for producing plastic dewatering and defoaming masterbatch, comprising an extruder body (1), wherein a feed frame (101) is embedded on one side of the top of the extruder body (1), and a feed cylinder (102) is fixedly installed on the top of the feed frame (101); characterized in that Also includes: The feed frame (101) is provided with an adjustment mechanism (2), and the feed cylinder (102) is provided with a crushing component (3); The adjusting mechanism (2) includes a frame (201) fixedly installed on one side of the feed frame (101), and an adjusting plate (202) is slidably connected between the feed frame (101) and the frame (201). A screw (203) is rotatably connected to one side of the frame (201), and a moving plate (204) is fixedly connected to the side of the adjusting plate (202) near the frame (201). A threaded sleeve (205) is threaded onto the outside of the screw (203), and a fixed connection is made to the inside of the frame (201). A fixed rod (206) is attached, and a sliding sleeve (207) is slidably connected to the outside of the fixed rod (206). Both ends of the moving plate (204) are fixedly connected to the threaded sleeve (205) and the sliding sleeve (207) respectively. A limit rod (208) is fixedly connected to the side of the moving plate (204) away from the adjusting plate (202). One end of the limit rod (208) passes through the frame (201) and is slidably connected to the frame (201). A scale groove (209) is opened on the top of the limit rod (208).

2. The extrusion apparatus for producing defoaming and dewatering masterbatch for plastics according to claim 1, characterized in that: The feed frame (101) is rotatably connected to a rotating rod (210) at its lower interior, and a dispersing blade (211) is fixedly installed on the outside of the rotating rod (210), and a first servo motor (212) is fixedly installed at one end of the rotating rod (210).

3. The extrusion apparatus for producing defoaming and dewatering masterbatch for plastics according to claim 1, characterized in that: The crushing assembly (3) includes an end cap (301) sleeved on the outer side of the top of the feed cylinder (102), and a stirring rod (302) is rotatably connected inside the end cap (301). A second servo motor (303) is fixedly installed on the top of the stirring rod (302), and a fixing sleeve (304) is fixedly installed on the outside of the stirring rod (302). A crushing blade (305) is welded to the outside of the fixing sleeve (304).

4. The extrusion apparatus for producing plastic dewatering and defoaming masterbatch according to claim 3, characterized in that: The end cap (301) is inlaid with a limiting tube (306), and a sliding rod (307) is slidably connected inside the limiting tube (306). A baffle (308) is fixedly connected to one end of the sliding rod (307), and a retraction spring (309) is sleeved on the outside of the sliding rod (307). An insert (310) is fixedly connected to the side of the baffle (308) away from the sliding rod (307). A slot (311) is opened on the outer side of the top of the feed cylinder (102), and the insert (310) is inserted into the slot (311).

5. The extrusion apparatus for producing defoaming and dewatering masterbatch for plastics according to claim 1, characterized in that: A rotating block (213) is fixedly connected to the end of the screw (203) away from the adjusting plate (202).

6. The extrusion apparatus for producing defoaming and dewatering masterbatch for plastics according to claim 4, characterized in that: The baffle (308) is slidably connected to the outside of the limiting tube (306).

7. An extrusion apparatus for producing defoaming and dewatering masterbatch for plastics according to claim 2, characterized in that: The bottom side of the first servo motor (212) is fixedly connected to the feed frame (101).