Hot-melting rapid cutting device for PVC plastic particle production

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) plastic particle production, and discloses a hot-melting quick cutting device for PVC plastic particle production, which comprises a working table, a lifting mechanism is mounted at the top end of the working table, connecting rods are mounted on opposite surfaces of the lifting mechanism, fixing blocks are mounted at the bottom ends of the connecting rods, and the fixing blocks are fixed on the working table. A cutting knife is installed at the bottom end of the fixing block, a mounting plate is installed at the top end of the cutting knife, two clamping grooves are formed in the surface of the mounting plate, an open groove is formed in the fixing block, two buckles are slidably connected into the open groove, and a fixing plate is fixedly connected into the open groove. According to the hot melting rapid cutting device for PVC plastic particle production, the cutting knife in modular design is adopted, when the cutting knife is abraded or damaged, the cutting knife can be rapidly replaced, production can be recovered in a short time, the downtime caused by knife replacement is shortened, and then the overall production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of PVC plastic granule production technology, and in particular to a hot melt rapid cutting device for PVC plastic granule production. Background Technology

[0002] PVC plastic granule production refers to the process of producing polyvinyl chloride resin through a polymerization reaction of vinyl chloride monomer, followed by a series of processing steps to mix the polyvinyl chloride resin with various additives evenly, heat and melt it, plasticize it, and then use specific molding equipment and processes to make PVC plastic granules with a certain shape and size. In PVC plastic granule production, after the material is heated, melted, plasticized, and extruded into strips or filaments by an extruder, it needs to be cut to obtain plastic granules of the required length and shape. The cutting blade is an essential accessory for performing this operation.

[0003] In existing technologies, cutting blades are prone to wear after long-term use, requiring replacement. However, replacing existing cutting blades usually requires disassembling multiple parts and may even require the intervention of specialized tools and technicians. The entire process is cumbersome and time-consuming, which can lead to prolonged downtime and may seriously affect production schedules. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the cutting blade is relatively cumbersome to replace. To this end, we propose a hot melt rapid cutting device for PVC plastic granule production.

[0005] To achieve the above objectives, this application adopts the following technical solution: a hot-melt rapid cutting device for PVC plastic granule production, comprising a worktable, a lifting mechanism installed at the top of the worktable, connecting rods installed on opposite sides of the lifting mechanism, a fixing block installed at the bottom of the connecting rod, a cutting blade installed at the bottom of the fixing block, an mounting plate installed at the top of the cutting blade, two slots on the surface of the mounting plate, a slot inside the fixing block, two buckles slidably connected inside the slot, a fixing plate fixedly connected inside the slot, springs fixedly connected to both sides of the fixing plate, the springs being fixedly connected to the buckles on the side closer to the buckles, limit sleeves fixedly connected to both sides of the fixing block, sliding grooves inside both sides of the fixing block and the limit sleeves, a sliding rod slidably connected inside the sliding groove, and a push-pull plate fixedly connected to the side of the sliding rod away from the fixing block.

[0006] Preferably, a return spring is slidably connected to the surface of the sliding rod, the side of the return spring closer to the push-pull plate is fixedly connected to the push-pull plate, and the side of the return spring away from the push-pull plate is fixedly connected to the fixing block.

[0007] Preferably, the front and rear ends of the slot are provided with first sliding grooves, and the front and rear ends of the buckle are fixedly connected with first sliders, and the interior of the first sliding groove is slidably connected to the first slider.

[0008] Preferably, the front and rear ends of the limiting sleeve are provided with second sliding grooves, and the front and rear ends of the sliding rod are fixedly connected with second sliders, and the interior of the second sliding groove is slidably connected to the second slider.

[0009] Preferably, the surface of the buckle has rounded corners, and two friction plates are mounted on the surface of the mounting plate.

[0010] Preferably, the front and rear ends of the fixing block are provided with T-shaped grooves, the front and rear ends of the mounting plate are fixedly connected with T-shaped blocks, and the interior of the T-shaped groove is slidably connected to the T-shaped block.

[0011] Preferably, the cutting blade is made of tungsten steel.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, when the cutting blade experiences significant wear after prolonged use, pushing the push-pull plate inward causes the sliding rod to abut the latch. This disengages the latch from the slot, releasing the cutting blade from its limiting position. The cutting blade can then be removed, and a new cutting blade with its slot aligned with the latch is inserted. Once inserted, the spring force secures the latch firmly in the slot, allowing for convenient cutting blade replacement. By employing a modular cutting blade design, wear or damage can be quickly replaced, restoring production in a short time and reducing downtime caused by tool replacement, thereby improving overall production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the cutting device of this utility model;

[0015] Figure 2 This is a schematic diagram of the cutting blade and connecting rod structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the cutting blade of this utility model;

[0017] Figure 4 This is a schematic diagram of the mounting plate structure of this utility model;

[0018] Figure 5 This is a cross-sectional schematic diagram of the cutting blade mounting structure of this utility model;

[0019] Figure 6 This is a cross-sectional view of the internal structure of the fixing block of this utility model.

[0020] Legend: 1. Worktable; 2. Lifting mechanism; 3. Connecting rod; 4. Fixing block; 5. Cutting blade; 6. Mounting plate; 7. Slot; 8. Groove; 9. Buckle; 10. Fixing plate; 11. Spring; 12. Limiting sleeve; 13. Sliding groove; 14. Sliding rod; 15. Push-pull plate; 16. Return spring; 17. First sliding groove; 18. First slider; 19. Second sliding groove; 20. Second slider; 21. Rounded corner; 22. Friction plate; 23. T-slot; 24. T-block. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a hot melt rapid cutting device for PVC plastic granule production, including a worktable 1, a lifting mechanism 2 installed at the top of the worktable 1, connecting rods 3 installed on opposite sides of the lifting mechanism 2, a fixing block 4 installed at the bottom of the connecting rods 3, a cutting blade 5 installed at the bottom of the fixing block 4, an mounting plate 6 installed at the top of the cutting blade 5, two slots 7 opened on the surface of the mounting plate 6, a slot 8 opened inside the fixing block 4, two buckles 9 slidably connected inside the slot 8, a fixing plate 10 fixedly connected inside the slot 8, spring springs 11 fixedly connected to both sides of the fixing plate 10, the side of the spring spring 11 near the buckle 9 fixedly connected to the buckle 9, and limit sleeves 12 fixedly connected to both sides of the fixing block 4, the sides of the fixing block 4 and the inner side of the limit sleeves 12 Each part is provided with a sliding groove 13, and a sliding rod 14 is slidably connected inside the sliding groove 13. A push-pull plate 15 is fixedly connected to the side of the sliding rod 14 away from the fixed block 4. When the cutting blade 5 is worn out after long-term use, the push-pull plate 15 is pushed inward to drive the sliding rod 14 to abut the buckle 9. At this time, the buckle 9 will disengage from the slot 7, thereby releasing the cutting blade 5 from its limit. Then, the cutting blade 5 can be removed, and the slot 7 on the new cutting blade 5 can be aligned with the buckle 9 and snapped in. After snapping in, the elastic force of the spring spring 11 drives the buckle 9 to be firmly snapped in the slot 7, achieving convenient replacement of the cutting blade 5. By adopting a modular design for the cutting blade 5, when the cutting blade 5 is worn or damaged, it can be quickly replaced, and production can be restored in a short time, reducing downtime caused by tool replacement and thus improving overall production efficiency.

[0023] Reference Figure 5As shown in this embodiment: a return spring 16 is slidably connected to the surface of the sliding rod 14. The side of the return spring 16 closest to the push-pull plate 15 is fixedly connected to the push-pull plate 15, and the side of the return spring 16 furthest from the push-pull plate 15 is fixedly connected to the fixing block 4. Through the arrangement of the push-pull plate 15 and the return spring 16, when the push-pull plate 15 is pressed and then released, the elastic force stored in the return spring 16 will drive the sliding rod 14 to spring back to the initial position, thereby achieving quick reset after the push-pull plate 15 is pressed, which is convenient for the next use.

[0024] Reference Figure 6 As shown in this embodiment: the front and rear ends of the slot 8 are provided with first sliding grooves 17, and the front and rear ends of the buckle 9 are fixedly connected with first sliders 18. The interior of the first sliding groove 17 is slidably connected to the first sliders 18. Through the setting of the first sliding groove 17 and the first sliders 18, the buckle 9 can provide a stable limiting effect when moving inside the slot 8, so that the buckle 9 is not easy to deviate when it is engaged with the slot 7, and effectively improves the engagement stability of the buckle 9 and the slot 7.

[0025] Reference Figure 6 As shown in this embodiment: the front and rear ends of the limiting sleeve 12 are provided with second sliding grooves 19, and the front and rear ends of the sliding rod 14 are fixedly connected with second sliders 20. The interior of the second sliding groove 19 is slidably connected with the second slider 20. Through the setting of the second sliding groove 19 and the second slider 20, the sliding rod 14 can form a stable limiting effect when moving inside the limiting sleeve 12, so that the sliding rod 14 will not move excessively, and the buckle 9 will not get stuck when it is released, thus improving the efficiency of releasing the limit.

[0026] Reference Figure 4 and Figure 5 As shown in this embodiment: the surface of the buckle 9 is provided with a rounded corner 21, and two friction plates 22 are installed on the surface of the mounting plate 6. By setting the rounded corner 21 and the friction plates 22, the buckle 9 can have less friction when it engages with the slot 7, and it is less likely to slip or fall off after engagement, effectively ensuring the stability of the cutting blade 5 after replacement.

[0027] Reference Figure 4 and Figure 5 As shown in this embodiment: T-shaped grooves 23 are provided at both the front and rear ends of the fixed block 4, and T-shaped blocks 24 are fixedly connected to both the front and rear ends of the mounting plate 6. The interior of the T-shaped groove 23 is slidably connected to the T-shaped block 24. Through the setting of the T-shaped groove 23 and the T-shaped block 24, the mounting plate 6 can provide a stable guiding effect when it slides into the fixed block 4, so that when the worker snaps the buckle 9 and the slot 7, there is no need to align them with effort, thereby further improving the ease of installation of the cutting blade 5.

[0028] Reference Figure 3 As shown in this embodiment, the cutting blade 5 is made of tungsten steel. By using tungsten steel to make the cutting blade 5, it can have better acid resistance, alkali resistance, oxidation resistance and rust resistance, and can maintain stable performance in the environment of hot-melt cutting of PVC plastic particles.

[0029] Working principle: When the cutting blade 5 experiences significant wear after prolonged use, pushing the push-pull plate 15 inward causes the sliding rod 14 to abut against the latch 9. At this point, the latch 9 disengages from the slot 7, releasing the cutting blade 5 from its limiting position. The cutting blade 5 can then be removed, and a new cutting blade 5 can be fitted with its new slot 7 aligned with the latch 9. Once fitted, the spring force of the elastic spring 11 secures the latch 9 firmly in the slot 7, allowing for convenient replacement of the cutting blade 5. The modular design of the cutting blade 5 allows for quick replacement when it becomes worn or damaged. This allows for rapid production recovery, reducing downtime caused by tool replacement and improving overall production efficiency. Through the push-pull plate 15 and return spring 16, when the push-pull plate 15 is pressed and then released, the stored elasticity of the return spring 16 causes the sliding rod 14 to spring back to its initial position, achieving rapid reset of the push-pull plate 15 after pressing, facilitating future use. The first groove 17 and first slider 18 provide a stable limiting effect when the latch 9 moves within the slot 8, thus ensuring the latch 9... When engaging with the slot 7, it is less prone to misalignment, effectively improving the engagement stability of the buckle 9 and the slot 7. The second sliding groove 19 and the second slider 20 ensure a stable limiting effect when the sliding rod 14 moves within the limiting sleeve 12, preventing excessive movement of the sliding rod 14 and ensuring that the buckle 9 does not jam when disengaging, thus improving the efficiency of disengagement. The rounded corner 21 and the friction plate 22 reduce friction when the buckle 9 engages with the slot 7, and further reduce the likelihood of misalignment after engagement. The sliding and detachment mechanism effectively ensures the stability of the cutting blade 5 after replacement. The T-slot 23 and T-block 24 provide a stable guide when the mounting plate 6 slides into the fixing block 4, allowing the operator to easily align the clip 9 with the slot 7 without effort, thus further improving the ease of installation of the cutting blade 5. The cutting blade 5, made of tungsten steel, has better acid and alkali resistance, oxidation resistance, and rust resistance, and can maintain stable performance in the environment of hot-melt cutting of PVC plastic particles.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A hot-melt rapid cutting device for PVC plastic granule production, comprising a worktable (1), characterized in that: A lifting mechanism (2) is installed at the top of the workbench (1). A connecting rod (3) is installed on the opposite side of the lifting mechanism (2). A fixing block (4) is installed at the bottom of the connecting rod (3). A cutting blade (5) is installed at the bottom of the fixing block (4). A mounting plate (6) is installed at the top of the cutting blade (5). Two slots (7) are opened on the surface of the mounting plate (6). A slot (8) is opened inside the fixing block (4). Two buckles (9) are slidably connected inside the slot (8). A fixed plate (10) is fixedly connected to the fixed block (4). Both sides of the fixed plate (10) are fixedly connected to elastic springs (11). The side of the elastic spring (11) close to the buckle (9) is fixedly connected to the buckle (9). Both sides of the fixed block (4) are fixedly connected to limit sleeves (12). Both sides of the fixed block (4) and the inside of the limit sleeves (12) are provided with sliding grooves (13). The inside of the sliding grooves (13) is slidably connected to a sliding rod (14). The side of the sliding rod (14) away from the fixed block (4) is fixedly connected to a push-pull plate (15).

2. The hot-melt rapid cutting device for PVC plastic granule production according to claim 1, characterized in that: A return spring (16) is slidably connected to the surface of the sliding rod (14). The side of the return spring (16) close to the push-pull plate (15) is fixedly connected to the push-pull plate (15), and the side of the return spring (16) away from the push-pull plate (15) is fixedly connected to the fixing block (4).

3. The hot-melt rapid cutting device for PVC plastic granule production according to claim 1, characterized in that: The front and rear ends of the slot (8) are provided with first sliding grooves (17), and the front and rear ends of the buckle (9) are fixedly connected with first sliders (18). The interior of the first sliding groove (17) is slidably connected to the first sliders (18).

4. The hot-melt rapid cutting device for PVC plastic granule production according to claim 1, characterized in that: The front and rear ends of the limiting sleeve (12) are provided with second sliding grooves (19), and the front and rear ends of the sliding rod (14) are fixedly connected with second sliders (20). The interior of the second sliding groove (19) is slidably connected to the second sliders (20).

5. The hot-melt rapid cutting device for PVC plastic granule production according to claim 1, characterized in that: The buckle (9) has rounded corners (21) on its surface, and two friction plates (22) are installed on the surface of the mounting plate (6).

6. The hot-melt rapid cutting device for PVC plastic granule production according to claim 1, characterized in that: The front and rear ends of the fixed block (4) are provided with T-shaped grooves (23), and the front and rear ends of the mounting plate (6) are fixedly connected with T-shaped blocks (24). The interior of the T-shaped groove (23) is slidably connected to the T-shaped block (24).

7. The hot-melt rapid cutting device for PVC plastic granule production according to claim 1, characterized in that: The cutting blade (5) is made of tungsten steel.

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