Device for locking dicing cutter of dicing cutter
The combination of a limit plate and a thrust bolt solves the problem of wear on the pelletizing blade caused by the inability to adjust the pressure of the pelletizing cylinder, thus achieving stable fixing and long-term operation of the pelletizing blade.
Patent Information
- Application Number
- CN202423122082.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The hydraulic cylinder pressure of existing pelletizers cannot be adjusted online, resulting in excessive wear of the pelletizing blades, which affects the long-term operation and service life of the equipment.
The device employs a combination structure of a limiting plate, an L-shaped plate, and a thrust bolt to fix the pelletizing blade using thrust force, thereby balancing the cylinder pressure and preventing wear from continuous high oil pressure.
It significantly reduces wear on the pelletizing blades, extends their service life, prevents blade breakage, and improves equipment stability and long-term operation capability.
Smart Images
Figure CN223618189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pelletizer technology, specifically to a device for locking the pelletizer blade. Background Technology
[0002] An extruder is a device used to process molten plastic or other materials into specific shapes. Existing large extruders have a normal production output of 14.3 tons / hour. However, the output decreases when the extruder is producing foamed materials, and the hydraulic cylinder pressure cannot be adjusted online, which leads to increased pressure on the pelletizing blade and easy wear.
[0003] When an extruder is working, it needs to work with a pelletizer to cut the raw materials produced by the extruder. Existing pelletizers typically use hydraulic cylinders to drive the cutting blades, causing the extruded foamed material to fall between the cutting blades and the die for pelletizing. However, because the hydraulic cylinder pressure cannot be adjusted online, the internal hydraulic cylinder pressure of the pelletizer cannot be adjusted during operation. Therefore, when the pelletizer is processing materials at a pressure set to a production capacity of 14.3 tons / hour, the cylinder pressure is normal. However, when producing foamed material, if the extruder output drops to 9.5 to 10.5 tons / hour, the cylinder pressure becomes too high, causing the cutting blades to wear out too quickly. This can even lead to blade breakage due to excessive wear, preventing the pelletizer from operating for extended periods, accelerating blade wear, and reducing the lifespan of the cutting blades. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a device for locking the pelletizer blades, thereby solving the technical problem of excessively high cylinder pressure in the pelletizer causing rapid wear of the pelletizer blades and preventing the pelletizer from operating for extended periods.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for locking the pelletizing blade of a pelletizer, comprising: a limiting plate, both ends of the top of the limiting plate being threadedly connected with first bolts, an L-shaped plate being fitted on the top of the limiting plate, a second bolt being threadedly connected to the top of the L-shaped plate, and the bottom of the second bolt penetrating the L-shaped plate and abutting against the upper surface of the limiting plate, and a thrust bolt being fitted on the right side of the L-shaped plate.
[0008] Preferably, the thrust bolt is externally slidably connected to a retaining sleeve, which is welded to the inside of the L-shaped plate. The retaining sleeve has evenly distributed grooves inside, and the retaining sleeve can cooperate with the limiting mechanism to limit the position of the thrust bolt.
[0009] Preferably, the thrust bolt has an external threaded connection to a nut, and the nut is welded to the outside of the L-shaped plate, so that the thrust bolt and the L-shaped plate can be threadedly connected.
[0010] Preferably, the thrust bolt is internally equipped with a limiting mechanism, which includes a vertical arm. Both ends of the vertical arm are connected to connecting rods via hinges, and the other end of the connecting rod is connected to a locking block. A spring is externally connected to the vertical arm. The vertical arm drives the connecting rods to move the locking block linearly, which then inserts into the slot, thus limiting the thrust bolt and the sleeve.
[0011] Preferably, the thrust bolt is a lead screw with a T-shaped groove inside, and the inside of the thrust bolt is slidably connected to the vertical arm and the locking block. The inside of the limiting mechanism is connected to the spring, and the limiting mechanism can be slidably disposed inside the thrust bolt.
[0012] Preferably, the vertical arm is externally connected to a cover plate, and the thrust bolt has a groove on its exterior. The groove is adapted to the cover plate, and the vertical arm can be inserted into the groove, thereby facilitating the operator to drive the thrust bolt to rotate by pressing the vertical arm.
[0013] Preferably, the top of the second bolt is equipped with a torsion wheel, and the outside of the torsion wheel is provided with anti-slip texture, so that the torsion wheel can facilitate the operation of the second bolt by the operator.
[0014] Preferably, one end of the thrust bolt is threaded, and the other end of the thrust bolt is smooth. The thread can be threaded to the nut, and the smooth end can slide inside the ferrule.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, the present invention provides a device for locking the pelletizing blade of a pelletizer, which has the following advantages:
[0017] This device for locking the pelletizer's cutting blades utilizes an L-shaped plate and thrust bolts to generate a thrust force on the pelletizer and its internal blades during pelletizing. This force secures and limits the pelletizer, preventing it from operating under continuous high hydraulic pressure in the cylinder. This balances the cylinder's hydraulic pressure, significantly reducing wear on the cutting blades caused by high cylinder pressure, thus greatly extending their lifespan and preventing breakage. Furthermore, the added limiting mechanism automatically locks the thrust bolts to the L-shaped plate after the thrust bolts are adjusted, improving the stability of the L-shaped plate and thrust bolts in limiting the cutting blades. Attached Figure Description
[0018] Figure 1 This is a front view of the present utility model;
[0019] Figure 2 This is a front view of the thrust bolt of this utility model;
[0020] Figure 3 This is an internal sectional view of the thrust bolt of this utility model;
[0021] Figure 4 This is a front view of the limiting mechanism of this utility model.
[0022] In the diagram: 1. First bolt; 2. Limiting plate; 3. Second bolt; 4. L-shaped plate; 5. Thrust bolt; 51. Sleeve; 52. Nut; 53. Groove; 54. Slot; 6. Limiting mechanism; 61. Vertical arm; 62. Cover plate; 63. Spring; 64. Connecting rod; 65. Block. Detailed Implementation
[0023] 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.
[0024] This utility model provides a technical solution, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A device for locking the pelletizing blade of a pelletizer includes: a limiting plate 2, which connects the pelletizer to the pelletizing chamber; both ends of the top of the limiting plate 2 are threaded with first bolts 1; an L-shaped plate 4 is mounted on the top of the limiting plate 2; a second bolt 3 is threadedly connected to the top of the L-shaped plate 4; a torsion wheel is mounted on the top of the second bolt 3, and the torsion wheel has anti-slip texture on its outer surface; the first bolts 1 and the second bolt 3 can limit the limiting plate 2; the bottom of the second bolt 3 penetrates the L-shaped plate 4 and abuts against the upper surface of the limiting plate 2 for auxiliary limiting of the limiting plate 2.
[0025] A thrust bolt 5 is mounted on the right side of the L-shaped plate 4. The thrust bolt 5 can work with the L-shaped plate 4 to apply thrust force to the pelletizer. One end of the thrust bolt 5 is threaded, and the other end of the thrust bolt 5 is smooth. The thread can be threaded to the nut 52. The smooth end can slide inside the sleeve 51. The sleeve 51 is slidably connected to the outside of the thrust bolt 5, and the sleeve 51 is welded to the inside of the L-shaped plate 4. The inside of the sleeve 51 is evenly distributed with slots 54. The sleeve 51 can work with the limiting mechanism 6 to limit the position of the thrust bolt 5. The nut 52 is threaded to the outside of the thrust bolt 5, and the nut 52 is welded to the outside of the L-shaped plate 4. The nut 52 can thread the thrust bolt 5 to the L-shaped plate 4.
[0026] The thrust bolt 5 is internally equipped with a limiting mechanism 6. The limiting mechanism 6 includes a vertical arm 61. Both ends of the vertical arm 61 are connected to a connecting rod 64 via hinges, and the other end of the connecting rod 64 is connected to a locking block 65. A spring 63 is externally connected to the vertical arm 61. The vertical arm 61 drives the connecting rod 64 to move the locking block 65 linearly, and then inserts it into the inside of the locking groove 54, limiting the thrust bolt 5 and the retaining sleeve 51.
[0027] The thrust bolt 5 is a threaded rod with a T-shaped groove inside. The inside of the thrust bolt 5 is slidably connected to the vertical arm 61 and the locking block 65. The inside of the limiting mechanism 6 is connected to the spring 63. The limiting mechanism 6 can be slidably set inside the thrust bolt 5. The outside of the vertical arm 61 is connected to the cover plate 62. The outside of the thrust bolt 5 has a groove 53. The groove 53 is adapted to the cover plate 62. The vertical arm 61 can be inserted into the inside of the groove 53, so that the operator can drive the thrust bolt 5 to rotate by pressing the vertical arm 61.
[0028] This solution first assembles the left side of the limiting plate 2 to the outside of the pelletizer using the first bolt 1, assembles the L-shaped plate 4 to the top of the limiting plate 2, and then assembles the right side of the limiting plate 2 to the outside of the pelletizing chamber of the pelletizer using the L-shaped plate 4. By threading the thrust bolt 5 to the outside of the L-shaped plate 4, the thrust force on the oil pressure of the pelletizer cylinder is increased, thus preventing the pelletizing blade from wearing due to high oil pressure in the cylinder.
[0029] Since the pelletizer is equipped with a hydraulic cylinder for pressing against the pelletizing blades, and the pelletizing chamber contains the pelletizing blades used for pelletizing, the purpose of this solution is to prevent the hydraulic cylinder from continuously pressing against the blades with high hydraulic pressure through a thrust structure, thus avoiding blade wear.
[0030] When the pelletizer is processing raw materials produced by the extruder, the added L-shaped plate 4 and thrust bolt 5 generate a thrust force on the pelletizer and internal blades, thereby fixing and limiting them. This prevents the pelletizer from operating under continuous high oil pressure in the cylinder, thus balancing the oil pressure in the cylinder. This significantly reduces the high wear on the pelletizing blades caused by high oil pressure in the cylinder, greatly increasing the service life of the pelletizing blades. Furthermore, the added limiting mechanism 6 automatically locks the thrust bolt 5 between the thrust bolt 5 and the L-shaped plate 4 after the thrust bolt 5 has been adjusted to its position. This improves the stability of the L-shaped plate 4 and the thrust bolt 5 in limiting the pelletizing blades, increases the thrust force on the oil pressure in the pelletizer cylinder, and prevents the pelletizing blades from wearing due to high oil pressure in the cylinder.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A device for locking the pelletizing blade of a pelletizer, comprising: The limiting plate (2) is characterized in that: both ends of the top of the limiting plate (2) are threaded with first bolts (1), the top of the limiting plate (2) is equipped with an L-shaped plate (4), the top of the L-shaped plate (4) is connected with a second bolt (3) through a threaded structure, the bottom of the second bolt (3) penetrates the L-shaped plate (4) and abuts against the upper surface of the limiting plate (2), and the right side of the L-shaped plate (4) is equipped with a thrust bolt (5).
2. The device for locking the pelletizer blade according to claim 1, characterized in that: The thrust bolt (5) is slidably connected to a sleeve (51), and the sleeve (51) is welded to the inside of the L-shaped plate (4). The inside of the sleeve (51) is evenly provided with slots (54).
3. The device for locking the pelletizer blade according to claim 1, characterized in that: The thrust bolt (5) has a nut (52) connected to its external thread, and the nut (52) is welded to the outside of the L-shaped plate (4).
4. The device for locking the pelletizer blade according to claim 1, characterized in that: The thrust bolt (5) is internally equipped with a limiting mechanism (6), which includes a vertical arm (61). Both ends of the vertical arm (61) are connected to a connecting rod (64) via hinges, and the other end of the connecting rod (64) is connected to a locking block (65). A spring (63) is externally connected to the vertical arm (61).
5. The device for locking the pelletizer blade according to claim 4, characterized in that: The thrust bolt (5) is a screw with a T-shaped groove inside, and the inside of the thrust bolt (5) is slidably connected to the vertical arm (61) and the locking block (65). The inside of the limiting mechanism (6) is connected to the spring (63).
6. The device for locking the pelletizer blade according to claim 4, characterized in that: The vertical arm (61) is connected to a cover plate (62) on the outside, and the thrust bolt (5) has a groove (53) on the outside, which is adapted to the cover plate (62).
7. The device for locking the pelletizer blade according to claim 1, characterized in that: The top of the second bolt (3) is fitted with a torsion wheel, and the outside of the torsion wheel is provided with anti-slip texture.
8. The device for locking the pelletizer blade according to claim 1, characterized in that: The thrust bolt (5) has a threaded outer end and a smooth design on the other end.