Underwater granulator precession feeding mechanism
By designing a combination structure of connecting rods, slots, and inserts in the underwater pellet mill, and using springs and limiting plates to achieve a reliable connection between the screw feeder and the frame, the problem of easy material spillage in the screw feeder is solved, and the continuity and uniformity of feeding are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional underwater pelletizers lack a connecting mechanism in their screw feeder, which makes it easy for materials to spill due to contact during use.
An underwater pellet mill screw feeding mechanism was designed. Through a combination of connecting rods, slots and inserts, a reliable connection between the screw feeder and the frame is achieved using springs and limiting plates, and convenient disassembly is achieved through pull rods and positioning mechanisms.
This effectively prevents material spillage caused by accidental displacement of the screw conveyor, ensuring continuous and uniform feeding and improving production efficiency.
Smart Images

Figure CN224060196U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of rubber production equipment, and specifically relates to a rotary feeding mechanism for an underwater pelletizer. Background Technology
[0002] Rubber is an elastic polymer. According to different manufacturing methods, rubber can be divided into two categories: synthetic rubber and natural rubber. It has a wide range of applications and products, such as tires and gaskets. In the production of rubber products, underwater pelletizers are needed to process the rubber.
[0003] Currently, traditional underwater pelletizers typically use a screw feeder to feed materials to the extruder during the rubber pelletizing process. This screw-feeding method can conveniently and continuously provide raw materials to the extruder in a relatively uniform manner. In order to facilitate the transfer and use of the screw feeder, the lower end of the screw feeder is usually equipped with wheels. However, since there is no connecting mechanism between the screw feeder and the frame, if the screw feeder is accidentally touched during use, the material can easily spill onto the frame of the pelletizer. Utility Model Content
[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a rotary feeding mechanism for an underwater pelletizer to solve the problems mentioned in the background art.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] An underwater pelletizer feeding mechanism includes: a frame and a movable base plate. An extruder is located on the upper left half of the frame, and a pelletizing blade assembly is located on the upper right half of the frame. The extruder has a feed inlet at its upper end and a water pipe at its extrusion end. The cutter disc of the pelletizing blade assembly is located inside the extrusion end of the extruder. A fixed plate is fixedly installed on the left end of the frame. Connecting rods are symmetrically welded to the outer side of the fixed plate, and slots are formed on opposite sides of the connecting rods. A screw feeder is located on the upper end of the movable base plate. A bracket is fixedly installed between the screw feeder and the movable base plate. The discharge end of the screw feeder is located directly above the feed inlet. Insert blocks are symmetrically welded to the outer side of the bracket, and the bracket is connected to the slots via the insert blocks. A retaining groove is formed on the outer side of the insert blocks. A connecting mechanism is provided on the inner side of the connecting rods, and the connecting rods are engaged with the retaining grooves via the connecting mechanism.
[0007] The connecting mechanism includes a mounting cavity, which is located inside the connecting rod. Slide rods are symmetrically fixedly mounted inside the mounting cavity. A first limiting plate is slidably connected to the outer side of the slide rods. A locking block is fixedly mounted on one side of the first limiting plate. The locking end of the locking block extends movably into the slot and engages with the locking groove of the insert block. A spring is sleeved on the outer side of the slide rod. A pull rod is fixedly mounted on the side of the first limiting plate away from the locking block. A handle is fixedly mounted at one end of the pull rod, which slidably penetrates the inner wall of the mounting cavity. A positioning mechanism is provided on the outer side of the pull rod.
[0008] The positioning mechanism includes a mounting sleeve, which is fixedly installed on the outside of the connecting rod. A locking hole is provided on the inside of the pull rod. A second limiting plate is slidably connected to the inside of the mounting sleeve. A guide rod is fixedly installed on the inside of the second limiting plate. The ends of the guide rods slidably pass through the mounting sleeve. A pull block is welded to the upper end of the guide rod. The lower end of the guide rod is movably connected to the locking hole of the pull rod.
[0009] As a preferred technical solution, mounting blocks are symmetrically welded to the outer side of the mounting sleeve, and the mounting sleeve is fixedly installed by screws passing through the mounting blocks and connecting rods.
[0010] As a preferred technical solution, the inner side of the mounting sleeve is symmetrically provided with sliding grooves, and the second limiting plate and the sliding grooves of the mounting sleeve are slidably connected.
[0011] As a preferred technical solution, symmetrical limiting grooves are formed on the inner side of the mounting cavity, and the first limiting plate and the limiting groove of the mounting cavity are slidably connected.
[0012] As a preferred technical solution, the fixing plate has symmetrical fixing holes on its inner side, and the fixing plate is fixedly installed to the frame by screws passing through the fixing holes.
[0013] As a preferred technical solution, a reinforcing plate is welded to the outer side of the fixing plate, and the other end of the reinforcing plate is welded to the connecting rod.
[0014] In summary, the present invention has the following main advantages:
[0015] First, insert the plug at the bracket part into the connecting rod slot at the fixed plate on the frame. During the insertion process, the plug slides and presses against the inclined surface of the card block in the slot, so that the first limiting plate connected to the card block slides on the slide rod inside the mounting cavity. At the same time, the first limiting plate presses against the spring on the slide rod. When the card slot of the plug corresponds to the position of the card block, the spring returns to its original position and pushes the first limiting plate to move, so that the card block on the first limiting plate is engaged and fixed with the card slot. This makes it convenient to connect and use the frame of the screw feeder and the pelletizer, avoiding the situation of material spillage caused by the accidental displacement of the screw feeder.
[0016] Secondly, by pulling the lever, when the locking hole on the lever moves to the bottom of the guide rod, the lower end of the guide rod moves down and inserts into the locking hole under the gravity of the guide rod, thus limiting the position of the lever. At this time, the locking block connected to the lever through the first limiting plate is in a state of separation from the locking slot. Therefore, when the locking blocks on both sides of the bracket are released, the screw feeder can be easily moved off the frame of the pelletizer. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is the insert block of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the mounting cavity of this utility model;
[0020] Figure 4 This is a schematic diagram of the positioning mechanism structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the slot structure of this utility model.
[0022] Reference numerals: 1. Frame; 2. Pelletizer unit; 3. Water pipe; 4. Extruder; 5. Feed inlet; 6. Movable base plate; 7. Screw feeder; 8. Support; 9. Connecting rod; 10. Fixing plate; 11. Fixing hole; 12. Reinforcing plate; 13. Slot; 14. Connecting mechanism; 141. Mounting cavity; 142. First limiting plate; 143. Handle; 144. Pull rod; 145. Spring; 146. Slide rod; 147. Locking block; 15. Positioning mechanism; 151. Locking hole; 152. Mounting sleeve; 153. Guide rod; 154. Second limiting plate; 155. Pulling block; 16. Insertion block; 17. Locking groove; 18. Limiting groove; 19. Mounting block; 20. Slide groove. Detailed Implementation
[0023] refer to Figures 1 to 5The underwater pelletizer feeding mechanism described in this embodiment includes: a frame 1 and a movable base plate 6. An extruder 4 is located on the upper left half of the frame 1, and a pelletizing blade assembly 2 is located on the upper right half of the frame 1. A feed inlet 5 is located at the upper end of the extruder 4, and a water pipe 3 is located at the extrusion end of the extruder 4. The cutter disc of the pelletizing blade assembly 2 is located inside the extrusion end of the extruder 4. A fixing plate 10 is fixedly installed on the left end of the frame 1. Connecting rods 9 are symmetrically welded to the outer side of the fixing plate 10, and slots 13 are opened on the opposite surfaces of the connecting rods 9. The movable base plate 6... The upper end is equipped with a screw feeder 7, and a bracket 8 is fixedly installed between the screw feeder 7 and the movable base plate 6. The discharge end of the screw feeder 7 is located directly above the feed inlet 5. The bracket 8 is symmetrically welded with insert blocks 16 on the outside. The bracket 8 is inserted into the slot 13 through the insert blocks 16. The outside of the insert blocks 16 is provided with a slot 17. The inner side of the connecting rod 9 is provided with a connecting mechanism 14. The connecting rod 9 is engaged with the slot 17 through the connecting mechanism 14. The underwater pelletizer is a relatively mature existing technology product, so the relevant structural details will not be described in detail here.
[0024] The connecting mechanism 14 includes a mounting cavity 141, which is located inside the connecting rod 9. A sliding rod 146 is symmetrically fixedly mounted inside the mounting cavity 141. A first limiting plate 142 is slidably connected to the outer side of the sliding rod 146. A locking block 147 is fixedly mounted on one side of the first limiting plate 142. The locking end of the locking block 147 extends into the inner side of the slot 13 and engages with the locking groove 17 of the insert block 16. A spring 145 is sleeved on the outer side of the sliding rod 146. A pull rod 144 is fixedly mounted on the side of the first limiting plate 142 away from the locking block 147. One end of the pull rod 144 slides through the inner wall of the mounting cavity 141 and is fixedly mounted with a handle 143. A positioning mechanism 15 is provided on the outer side of the pull rod 144. When connecting the support 8 of the screw feeder 7 to the frame 1 of the pelletizer, a positioning mechanism 15 is provided. Insert the insert block 16 at the bracket 8 and the connecting rod 9 slot 13 at the fixing plate 10 on the frame 1. During the insertion process, the insert block 16 slides and presses the inclined surface of the locking block 147 in the slot 13, so that the first limiting plate 142 connected to the locking block 147 slides on the slide rod 146 inside the mounting cavity 141. At the same time, the first limiting plate 142 presses the spring 145 on the slide rod 146. When the position of the slot 17 of the insert block 16 corresponds to the position of the locking block 147, the spring 145 resets and pushes the first limiting plate 142 to move, so that the locking block 147 on the first limiting plate 142 is locked and fixed with the slot 17. This makes it convenient to connect and use the frame 1 of the screw feeder 7 and the pelletizer, and avoids the situation of accidental displacement of the screw feeder 7 leading to material spillage.
[0025] The positioning mechanism 15 includes a mounting sleeve 152, which is fixedly installed on the outside of the connecting rod 9. A locking hole 151 is provided on the inner side of the pull rod 144. A second limiting plate 154 is slidably connected to the inner side of the mounting sleeve 152. A guide rod 153 is fixedly installed on the inner side of the second limiting plate 154. The ends of the guide rod 153 slidably pass through the mounting sleeve 152. A pull block 155 is welded to the upper end of the guide rod 153. The lower end of the guide rod 153 is movably connected to the locking hole 151 of the pull rod 144. This mechanism is used to separate the screw feeder 7 from the frame 1 of the pelletizer. When the lever 144 is moved by the handle 143, the locking hole 151 on the lever 144 moves to the bottom of the guide rod 153. Under the gravity of the guide rod 153, the lower end of the guide rod 153 moves down and inserts into the locking hole 151, which limits the position of the lever 144. At this time, the locking block 147 connected to the lever 144 through the first limiting plate 142 is in a state of separation from the locking groove 17. Therefore, when the locking blocks 147 on both sides of the bracket 8 are released, the screw feeder 7 can be easily moved off the frame 1 of the pelletizer.
[0026] refer to Figure 5 The mounting sleeve 152 is symmetrically welded with mounting blocks 19 on its outer side. The mounting sleeve 152 is fixedly installed by screws passing through the mounting blocks 19 and the connecting rod 9. By welding the mounting blocks 19 onto the mounting sleeve 152, the mounting sleeve 152 can be easily installed and used on the connecting rod 9.
[0027] refer to Figure 4 The inner side of the mounting sleeve 152 is symmetrically provided with sliding grooves 20. The second limiting plate 154 and the sliding grooves 20 of the mounting sleeve 152 are slidably connected. By providing the sliding grooves 20 on the inner side of the mounting sleeve 152, the second limiting plate 154 can be limited and slid within the mounting sleeve 152.
[0028] refer to Figure 3 The mounting cavity 141 has symmetrically provided limiting grooves 18 on its inner side. The first limiting plate 142 and the limiting grooves 18 of the mounting cavity 141 are slidably connected. By providing limiting grooves 18 on the inner side of the mounting cavity 141, when the first limiting plate 142 is pulled from one side of the limiting groove 18 to the other side by the pull rod 144, the locking hole 151 on the pull rod 144 is exactly located below the guide rod 153, which can facilitate the guide rod 153 to limit the pull rod 144.
[0029] refer to Figure 1 The fixing plate 10 has symmetrical fixing holes 11 on its inner side. The fixing plate 10 is fixed to the frame 1 by screws passing through the fixing holes 11. By opening the fixing holes 11 on the inner side of the fixing plate 10, the fixing plate 10 can be easily fixed to the frame 1 of the pelletizer by screws.
[0030] refer to Figure 1A reinforcing plate 12 is welded to the outside of the fixing plate 10. The other end of the reinforcing plate 12 is welded to the connecting rod 9. By welding the reinforcing plate 12 between the fixing plate 10 and the connecting rod 9, the strength of the connecting rod 9 can be improved.
[0031] Operating principle and advantages: When connecting the support 8 of the screw feeder 7 to the frame 1 of the pelletizer, the insert 16 of the support 8 is inserted into the slot 13 of the connecting rod 9 at the fixing plate 10 on the frame 1. During the insertion process, the insert 16 slides and presses the inclined surface of the locking block 147 in the slot 13, so that the first limiting plate 142 connected to the locking block 147 slides on the slide rod 146 inside the mounting cavity 141. At the same time, the first limiting plate 142 presses the spring 145 on the slide rod 146. When the position of the slot 17 of the insert 16 corresponds to the position of the locking block 147, the spring 145 resets and pushes the first limiting plate 142 to move, so that the locking block 147 on the first limiting plate 142 is locked and fixed with the slot 17.
[0032] When separating the screw feeder 7 from the frame 1 of the pelletizer, the pull rod 144 is moved by the handle 143. When the locking hole 151 on the pull rod 144 moves to the bottom of the guide rod 153, the lower end of the guide rod 153 moves down and inserts into the locking hole 151 under the gravity of the guide rod 153, thus limiting the position of the pull rod 144. At this time, the locking block 147 connected to the pull rod 144 through the first limiting plate 142 is in the state of being separated from the locking groove 17. Therefore, after the locking blocks 147 on both sides of the bracket 8 are released, the screw feeder 7 can be easily removed from the frame 1 of the pelletizer.
Claims
1. An underwater pellet mill screw feed mechanism characterized by The utility model relates to a movable extruding and cutting device, including: rack (1) and mobile base plate (6), the upper end left half of rack (1) is equipped with extruder (4), the upper end right half of rack (1) is equipped with granulator cutter set (2), the upper end of extruder (4) is equipped with feed inlet (5), the extruding end of extruder (4) is equipped with water pipe (3), the cutter head of granulator cutter set (2) is located inside the extruding end of extruder (4), the left end of rack (1) is fixedly installed with fixed plate (10), the outside symmetry of fixed plate (10) is welded with connecting rod (9), the opposite surface of connecting rod (9) is equipped with slot (13), the upper end of mobile base plate (6) is equipped with spiral feeder (7), spiral feeder (7) and mobile base plate (6) are fixedly installed with support (8) between, the discharge end of spiral feeder (7) is located just above feed inlet (5), the outside symmetry of support (8) is welded with insert block (16), support (8) is inserted through insert block (16) and slot (13), the outside of insert block (16) is equipped with clamping groove (17), the inside of connecting rod (9) is equipped with connecting mechanism (14), connecting rod (9) is clamped through connecting mechanism (14) and clamping groove (17). The connecting mechanism (14) includes an installation cavity (141), which is arranged in the inner side of the connecting rod (9), the inner side of the installation cavity (141) is fixedly installed with a slide rod (146) symmetrically, the outer side of the slide rod (146) is slidably connected with a same first limiting plate (142), one side of the first limiting plate (142) is fixedly installed with a clamping block (147), the clamping end of the clamping block (147) is movably inserted into the inner side of the slot (13) and the clamping groove (17) of the insert block (16), the outer side of the slide rod (146) is sleeved with a spring (145), the side of the first limiting plate (142) away from the clamping block (147) is fixedly installed with a pull rod (144), one end of the pull rod (144) is slidably penetrated through the inner wall of the installation cavity (141) and fixedly installed with a pull handle (143), the outer side of the pull rod (144) is provided with a positioning mechanism (15).
2. The rotary feed mechanism of an underwater pellet cutter according to claim 1, characterized in that: The positioning mechanism (15) includes a mounting sleeve (152), which is fixedly installed on the outer side of the connecting rod (9), the inner side of the pull rod (144) is provided with a clamping hole (151), the inner side of the mounting sleeve (152) is slidably connected with a second limiting plate (154), the inner side of the second limiting plate (154) is fixedly installed with a guide rod (153), the end portions of the guide rod (153) are slidably penetrated through the mounting sleeve (152), the upper end of the guide rod (153) is welded with a pulling block (155), and the lower end of the guide rod (153) is movably connected with the clamping hole (151) of the pull rod (144).
3. An underwater pellet mill screw feed mechanism according to claim 2, wherein: The outer side of the mounting sleeve (152) is symmetrically welded with a mounting block (19), and the mounting sleeve (152) is fixedly installed through the mounting block (19) and the connecting rod (9) by screws.
4. The underwater pellet cutter rotary feed mechanism of claim 2, wherein: The inner side of the mounting sleeve (152) is symmetrically provided with a sliding groove (20), and the second limiting plate (154) and the sliding groove (20) of the mounting sleeve (152) are in sliding connection.
5. The rotary feed mechanism of an underwater pellet cutter according to claim 1, characterized in that: The inner side of the mounting cavity (141) is symmetrically provided with a limiting groove (18), and the first limiting plate (142) and the limiting groove (18) of the mounting cavity (141) are in sliding connection.
6. The underwater pellet mill screw feed mechanism of claim 1, wherein: The inner side of the fixed plate (10) is symmetrically provided with a fixed hole (11), and the fixed plate (10) is fixedly installed on the rack (1) by penetrating the fixed hole (11) and the rack (1) through screws.
7. The rotary feed mechanism of an underwater pellet cutter according to claim 1, characterized in that: The outer side of the fixed plate (10) is welded with a reinforcing plate (12), and the other end of the reinforcing plate (12) is welded with the connecting rod (9).