A screw extruder control mechanism
By designing a screw extruder control mechanism, an electric push rod and cylinder drive mechanism are used to easily disconnect the screw rod from the drive shaft, solving the problem of difficult disassembly of the screw extruder, realizing convenient disassembly and stable positioning of the screw rod, and improving maintenance efficiency.
Patent Information
- Application Number
- CN202521579490.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-27
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-27
AI Technical Summary
The existing screw extruder control mechanism makes it inconvenient to disconnect the screw from the drive shaft after use, making it difficult to remove the screw for maintenance.
A screw extruder control mechanism was designed. The second electric push rod drives the fixed sleeve, the first electric push rod drives the base plate, and the double-headed cylinder drives the fixed hoop, so as to realize the convenient disconnection of the drive shaft and the screw. The screw is removed by moving the extrusion cylinder outward. Combined with the restraint of the fixed sleeve, fixed rod and fixed hoop, the positioning and stability of the screw after installation are ensured.
It enables convenient disassembly and cleaning maintenance of the screw, ensures the stability of the connection between the screw and the drive shaft and the stable positioning of the screw inside the extrusion barrel, and improves maintenance efficiency.
Smart Images

Figure CN224675616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw extruder technology, specifically to a screw extruder control mechanism. Background Technology
[0002] A screw extruder is an industrial equipment that uses screw rotation to achieve material conveying, plasticizing, mixing and molding. It is widely used in plastics, rubber, food, pharmaceutical and other fields. According to the number of screws, spatial position and rotation direction, it can be classified as single screw, twin screw, three screw, multi screw, horizontal, vertical, co-rotating (screws rotate in the same direction) and counter-rotating (screws rotate in opposite directions).
[0003] Existing screw extruder control mechanisms, such as the screw extruder control system disclosed in publication number CN219214054U, have the advantage of independently controlling each group of heaters and fans, thereby independently controlling the temperature of each area of the barrel. However, this extruder makes it inconvenient to disconnect the screw from the drive shaft after use, which makes it difficult to remove and maintain the screw after use. Therefore, we propose a screw extruder control mechanism. 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: A screw extruder control mechanism includes: an extruder body and a control assembly; the extruder body includes a control box fixedly installed on one side; the control assembly includes an extrusion cylinder movably installed on the upper end of the extruder body, a screw rod movably installed inside the extrusion cylinder, support seats fixedly installed at both ends of the extrusion cylinder, a base plate fixedly installed at the bottom of the support seats, first electric push rods fixedly installed on both sides of the extruder body, a locking block fixedly set at one end of the screw rod, a reduction motor fixedly installed on one side of the extruder body, a drive shaft fixedly connected to the front end of the reduction motor, and a slot opened at one end of the drive shaft; a first restraint groove is also opened on one side of the base plate. A double-headed cylinder is fixedly installed on the upper end of the plate. A first binding frame is fixedly installed on both ends of the double-headed cylinder, and the lower part of the first binding frame is movably installed in the first binding groove. A fixing hoop is also fixedly installed on the first binding frame. An installation groove is also opened on one side of the extruder body. A second binding groove is also opened at the front end of the installation groove. A second electric push rod is fixedly installed in the installation groove. A second binding frame is fixedly installed at the front end of the second electric push rod, and the second binding frame is movably installed in the second binding groove. A fixing sleeve is fixedly installed on the top of the second binding frame, and the fixing sleeve is movably installed on the outer end of the drive shaft and the screw rod.
[0006] Preferably, a bayonet is provided on one side of the spiral rod, and fixing hoops are movably installed on both sides of the bayonet.
[0007] Preferably, the extruder body also has a movable cavity, and the bottom plate is movably installed in the movable cavity. The bottom plate also has mounting holes arranged on both sides, and a fixing rod is movably installed in each mounting hole, with both ends of the fixing rod fixed to the inner wall of the movable cavity.
[0008] Preferably, the front end of the first electric actuator is fixedly connected to the base plate.
[0009] Preferably, the card block and the card slot are matched.
[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. In this utility model, after the extruder body is used, the drive shaft and the screw rod can be disconnected by the fixed sleeve driven by the second electric push rod, the base plate driven by the first electric push rod, and the fixed hoop driven by the double-headed cylinder in sequence, and the extrusion cylinder can be driven to move outward, so as to conveniently remove the screw rod through the extrusion cylinder for cleaning and maintenance. 2. In this utility model, the fixing sleeve of the second binding groove, the base plate of the fixing rod, and the fixing hoop of the first binding groove can also ensure the positioning and stability of the screw rod after installation in the extrusion cylinder, as well as the stability of the connection between the screw rod and the drive shaft. Attached Figure Description
[0011] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is an adjustment diagram of the base plate of this utility model; Figure 3 This is another perspective of the base plate adjustment diagram of this utility model; Figure 4 This utility model Figure 2 Enlarged view of A in the middle; Figure 5 This utility model Figure 3 Enlarged view of B in the middle; Figure 6 This is a disassembly diagram of the screw rod of this utility model.
[0012] Figure label: 100. Extruder body; 101. Control box; 200. Control component; 201. Extrusion cylinder; 202. Screw rod; 203. Support base; 204. Base plate; 205. First electric actuator; 206. Locking block; 207. Gear motor; 208. Drive shaft; 209. Slot; 210. First restraint slot; 211. Double-headed cylinder; 212. First restraint frame; 213. Fixing clamp; 214. Bayonet; 215. Mounting slot; 216. Second restraint slot; 217. Second electric actuator; 218. Second restraint frame; 219. Fixing sleeve; 220. Movable cavity; 221. Mounting hole; 222. Fixing rod. Detailed Implementation
[0013] 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.
[0014] The following describes, with reference to the accompanying drawings, some embodiments of a screw extruder control mechanism provided by this utility model.
[0015] Example 1: Combination Figures 1-6As shown, the present invention provides a screw extruder control mechanism, comprising: an extruder body 100 and a control assembly 200; the extruder body 100 includes a control box 101 fixedly installed on one side; the control assembly 200 includes an extrusion cylinder 201 movably installed on the upper end of the extruder body 100, a screw rod 202 movably installed inside the extrusion cylinder 201, a support base 203 fixedly installed at both ends of the extrusion cylinder 201, a base plate 204 fixedly installed at the bottom of the support base 203, a first electric push rod 205 fixedly installed on both sides of the extruder body 100, and a screw rod 202 fixedly installed at one end. The extruder body 100 has a locking block 206, a reduction motor 207 fixedly installed on one side, a drive shaft 208 fixedly connected to the front end of the reduction motor 207, a locking groove 209 opened at one end of the drive shaft 208, a first binding groove 210 opened on one side of the base plate 204, a double-headed cylinder 211 fixedly installed on the upper end of the base plate 204, a first binding frame 212 fixedly installed at both ends of the double-headed cylinder 211, and the lower part of the first binding frame 212 is movably installed in the first binding groove 210. A fixing hoop 213 is also fixedly installed on each of the first binding frames 212. A screw rod 202 has a... A bayonet 214 is provided on the side, and fixing clamps 213 are movably installed on both sides of the bayonet 214. An installation groove 215 is also provided on one side of the extruder body 100. A second restraint groove 216 is also provided at the front end of the installation groove 215. A second electric push rod 217 is fixedly installed in the installation groove 215. A second restraint frame 218 is also fixedly installed at the front end of the second electric push rod 217, and the second restraint frame 218 is movably installed in the second restraint groove 216. A fixing sleeve 219 is also fixedly installed on the top of the second restraint frame 218, and the fixing sleeve 219 is movably installed between the drive shaft 208 and the screw rod 202. At the outer end, the extruder body 100 is also provided with a movable cavity 220, and the bottom plate 204 is movably installed in the movable cavity 220. The bottom plate 204 is also provided with mounting holes 221 on both sides. Fixing rods 222 are movably installed in the mounting holes 221, and both ends of the fixing rods 222 are fixed to the inner wall of the movable cavity 220. The front end of the first electric push rod 205 is fixedly connected to the bottom plate 204. The locking block 206 is matched with the locking groove 209. The first electric push rod 205, the reduction motor 207, the double-headed cylinder 211, and the second electric push rod 217 are all connected to the control box 101 by wires.
[0016] Specifically, a screw extruder is an industrial device that uses screw rotation to achieve material conveying, plasticizing, mixing, and molding. After use, the extruder body 100 can be sequentially controlled by the fixed sleeve 219 driven by the second electric push rod 217, the base plate 204 driven by the first electric push rod 205, and the fixed clamp 213 driven by the double-headed cylinder 211 to disconnect the drive shaft 208 from the screw 202 and drive the extrusion cylinder 201 to move outward, thereby conveniently removing the screw 202 from inside the extrusion cylinder 201 for screw 202 removal. The cleaning and maintenance of part 2, along with the fixing sleeve 219 bound by the second binding groove 216, the base plate 204 bound by the fixing rod 222, and the fixing hoop 213 bound by the first binding groove 210, can also ensure the positioning and stability of the screw rod 202 inside the extrusion cylinder 201 after installation, as well as the stability between the screw rod 202 and the drive shaft 208. The support seats 203 on both sides of the extrusion cylinder 201 are mainly used to ensure the stability of the extrusion cylinder 201 on the base plate 204. The inner rod in the first electric push rod 205 moves through the extruder body. 100 is fixed to the base plate 204 and is mainly used for the overall movement and adjustment of the base plate 204 and its upper extrusion cylinder 201. The locking block 206 at one end of the screw rod 202 is mainly used for matching and connecting with the slot 209 in the drive shaft 208. The fixing sleeve 219 driven by the second electric push rod 217 is sleeved on the outer end of the locking block 206 and the slot 209. It is mainly used to ensure the stability of the connection between the locking block 206 and the slot 209. At the same time, it can also be moved and adjusted before the locking block 206 and the slot 209 are separated to avoid obstructing the locking block 206. Separated from the slot 209, the fixing clamp 213 driven by the double-headed cylinder 211 engages with both ends of the slot 214 on the screw rod 202. This can be used to ensure the positioning of the screw rod 202 in the extrusion barrel 201, and also to ensure the position of the screw rod 202 in the extrusion barrel 201 and enhance its stability. The movable cavity 220 at the upper end of the extruder body 100 is mainly used to facilitate the overall movement and adjustment of the base plate 204. The fixing rod 222 in the movable cavity 220 is mainly used to ensure the stability of the base plate 204 before and after adjustment.
[0017] Working principle and usage process of this utility model: After the extruder body 100 is used, operate the control box 101 to first start the second electric push rod 217 to move the upper fixed sleeve 219 to release the restraint on the locking block 206 and the slot 209. Then, adjust the position of the locking block 206 and the slot 209 through the reduction motor 207 so that the locking block 206 in the slot 209 remains horizontal. Then, start the double-headed cylinder 211 to open the fixing clamps 213 at both ends to release the restraint on the screw rod 202 in the extrusion cylinder 201. Finally, start the first electric push rod 205 to pull the base plate 204 and the extrusion cylinder 201 to move as a whole. During the movement of the extrusion cylinder 201, the locking block 206 at one end of the screw rod 202 is moved out of the slot 209. At this time, the screw rod 202 can be pulled out of the extrusion cylinder 201 for cleaning and maintenance after disassembly and separation.
[0018] 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 control mechanism for a screw extruder, characterized in that, include: Extruder body (100), control components (200); The extruder body (100) includes a control box (101) fixedly mounted on one side thereon; The control assembly (200) includes an extrusion cylinder (201) movably mounted on the upper end of the extruder body (100), a screw rod (202) movably mounted inside the extrusion cylinder (201), a support base (203) fixedly mounted on both ends of the extrusion cylinder (201), a base plate (204) fixedly mounted on the bottom of the support base (203), a first electric push rod (205) fixedly mounted on both sides of the extruder body (100), a locking block (206) fixedly set at one end of the screw rod (202), a reduction motor (207) fixedly mounted on one side of the extruder body (100), a drive shaft (208) fixedly connected to the front end of the reduction motor (207), and a slot (209) opened at one end of the drive shaft (208). A first binding groove (210) is also opened on one side of the base plate (204), and a double-headed cylinder (211) is fixedly mounted on the upper end of the base plate (204). Both ends of the head cylinder (211) are fixedly installed with a first binding frame (212), and the lower part of the first binding frame (212) is movably installed in the first binding groove (210). The first binding frame (212) is also fixedly installed with a fixing hoop (213). The extruder body (100) is also provided with an installation groove (215) on one side. The front end of the installation groove (215) is also provided with a second binding groove (216). The second electric push rod (217) is also fixedly installed in the installation groove (215). The front end of the second electric push rod (217) is also fixedly installed with a second binding frame (218), and the second binding frame (218) is movably installed in the second binding groove (216). The top of the second binding frame (218) is also fixedly installed with a fixing sleeve (219), and the fixing sleeve (219) is movably installed on the outer end of the drive shaft (208) and the screw rod (202).
2. The screw extruder control mechanism according to claim 1, characterized in that, The screw rod (202) is also provided with a slot (214) on one side, and a fixing hoop (213) is movably installed on both sides of the slot (214).
3. The screw extruder control mechanism according to claim 1, characterized in that, The extruder body (100) is also provided with a movable cavity (220), and the bottom plate (204) is movably installed in the movable cavity (220). The bottom plate (204) is also provided with mounting holes (221) on both sides. The mounting holes (221) are also movably installed with fixing rods (222), and both ends of the fixing rods (222) are fixed to the inner wall of the movable cavity (220).
4. The screw extruder control mechanism according to claim 1, characterized in that, The front end of the first electric actuator (205) is fixedly connected to the base plate (204).
5. The screw extruder control mechanism according to claim 1, characterized in that, The card block (206) is matched with the card slot (209).
Citation Information
Patent Citations
Screw extruder control system
CN219214054U