A pellet cutting apparatus

Abstract

The utility model relates to the technical field of plastics processing provides a kind of pelletizing equipment, including rack, and the cutting assembly is provided on rack with feeding assembly, and feeding assembly includes top plate, multiple groups of compacting part, driving roller and auxiliary row, and bracket is provided on rack;Mounting seat is provided on rack, and mounting seat is at the rear of driving roller, and detachable limit sleeve is installed in mounting seat, and limit sleeve includes bottom plate and cover plate, and bottom plate is installed in mounting seat, and cover plate is installed on bottom plate, and bottom plate and cover plate are in harmony, and multiple groups of limit tube are arranged between bottom plate and cover plate;Compared to prior art, compacting elastic piece auxiliary compacting wheel is clamped in driving wheel with long strip raw material, and long strip raw material is moved to limit tube by driving roller, and limit tube can limit long strip raw material, avoid long strip raw material to occur in the process of migration to deviate, ensure that the size of raw material particle cut out by cutting tool is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a pelletizing device. Background Technology

[0002] Long strips of plastic or rubber extruded from an extruder need to be cut into granules by a pelletizer to meet different production needs. Existing pelletizers usually only have one set of rollers to guide the raw materials into the pelletizer. However, long strips of raw materials are prone to deviation during the conveying process. The deviated raw material strips will be cut into different sizes, which will affect the accuracy of subsequent production and processing. Therefore, there is a need for a pelletizing device that can accurately guide the raw material strips to improve the accuracy of the granulated raw materials. Utility Model Content

[0003] The purpose of this invention is to provide a pelletizing device for improving the cutting accuracy of raw material particles.

[0004] To achieve the above objectives, this utility model provides a pelletizing device, including a frame, a feeding assembly and a cutting assembly mounted on the frame. The feeding assembly includes a top plate, multiple sets of pressing parts, a drive roller, and an auxiliary rack. A support is mounted on the frame, the top plate is mounted on the support, and the multiple sets of pressing parts are mounted on the support via rotating shafts. A pressing elastic element is provided between the top plate and the pressing parts. A limit rod is provided on the support to limit the rotation angle of the pressing parts. The drive roller is mounted on the support and has multiple sets of drive wheels, each drive wheel corresponding to a pressing part. The pressing parts are used to press long strips of raw material onto the drive wheels. An auxiliary rack is mounted on the support and is located at both ends of the drive roller. The auxiliary rack has diaphragm holes corresponding to the drive wheels.

[0005] The bracket is equipped with a mounting seat, which is located behind the drive roller. A detachable limiting sleeve is installed in the mounting seat. The limiting sleeve includes a base plate and a cover plate. The base plate is installed in the mounting seat, and the cover plate is installed on the base plate. The base plate and the cover plate fit together. Multiple sets of limiting tubes are provided between the base plate and the cover plate. The limiting tubes correspond one-to-one with the diaphragm holes on the auxiliary row. The diameter of the limiting tube is slightly larger than the diameter of the long strip of raw material.

[0006] The cutting assembly is mounted on the frame and is located behind the limiting sleeve. The cutting assembly is used to cut long strips of raw material extending from the limiting tube.

[0007] Furthermore, the pressing part is provided with a pressing wheel and a pressing hand. The pressing wheel is located at the bottom of the pressing part and is used to press the long strip of raw material onto the drive wheel. The pressing hand is located on the side of the pressing part away from the rotating shaft, and the lengths of adjacent sets of pressing hands are different.

[0008] The auxiliary row has inserts at both ends, and the bracket has slots for the corresponding inserts; the auxiliary row also has handles at both ends.

[0009] Furthermore, the cutting assembly includes a cutting drive, a slide, a blade holder, a cutting blade, and a fixing buckle. A guide rail is provided on the bracket, and the slide is mounted on the guide rail. The cutting drive is used to drive the slide to slide on the guide rail. The blade holder is hinged to the slide and is used to mount the cutting blade. The cutting blade is close to the limiting sleeve. A set of fixing buckles is provided at each end of the slide and is used to fix the blade holder and the slide in a fixed connection.

[0010] Furthermore, the fixed lock is provided with a pressing part and a locking tongue. The pressing part is located on the side of the fixed lock away from the slide, and the locking tongue is located above the fixed lock. Both the slide and the knife holder are provided with locking grooves that fit the locking tongue.

[0011] Furthermore, the frame is equipped with a guide seat, which contains multiple guide grooves. Each guide groove corresponds to a diaphragm hole, and the guide seat is located in front of the drive roller.

[0012] Furthermore, an auxiliary roller is provided on the guide seat, and the auxiliary roller is located on the side of the guide seat away from the drive roller.

[0013] Furthermore, the mounting base is equipped with a limit pin, and both the base plate and the cover plate are equipped with limit holes corresponding to the limit pin.

[0014] The pelletizing device provided by this utility model, compared with the prior art, uses a clamping elastic element to assist the clamping roller to clamp the long strip of raw material on the drive wheel. The drive roller drives the long strip of raw material to move towards the limiting tube. The limiting tube can restrict the long strip of raw material and prevent it from deviating during the movement, ensuring that the raw material particles cut by the cutting blade are more uniform in size. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 yes Figure 2 A sectional view of section AA;

[0018] Figure 4 This is an exploded view of the present invention;

[0019] Figure 5 This is a working view of the replacement limit sleeve of this utility model;

[0020] Figure 6 yes Figure 5 A magnified view of part B in the middle section;

[0021] Figure 7 This is a perspective view of the bracket in this utility model;

[0022] Figure 8 This is a perspective view of the feeding assembly in this utility model;

[0023] Figure 9 This is a perspective view of the clamping part in this utility model;

[0024] Figure 10 This is a three-dimensional view of the auxiliary row in this utility model;

[0025] Figure 11 This is a three-dimensional view of the limiting sleeve in this utility model;

[0026] Figure 12 This is a perspective view of the cutting component in this utility model;

[0027] Figure 13 This is a cross-sectional view of the cutting component in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] in;

[0030] 1. Rack;

[0031] 2. Bracket; 20. Mounting base; 21. Slot; 22. Guide rail; 23. Limiting sleeve; 230. Base plate; 231. Cover plate; 232. Limiting hole; 233. Limiting tube; 24. Limiting pin;

[0032] 3. Feeding assembly; 30. Top plate; 31. Pressing part; 310. Pressing roller; 311. Pressing hand part; 312. Rotating shaft; 313. Limiting rod; 32. Drive roller; 320. Drive wheel; 33. Pressing elastic element; 34. Auxiliary row; 340. Diaphragm hole; 341. Handle; 342. Insert strip;

[0033] 4. Cutting assembly; 40. Cutting drive unit; 41. Slide; 42. Blade holder; 43. Cutting blade; 44. Fixing latch; 440. Pressing part; 441. Locking tongue; 45. Locking groove;

[0034] 5. Guide seat; 50. Guide groove; 51. Auxiliary roller. Detailed Implementation

[0035] The present invention will be described in detail below with reference to specific embodiments.

[0036] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through one or more intermediate media. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The directional terms appearing in this utility model are for the purpose of better describing the characteristics of the features and the relationships between them. It should be understood that when the placement direction of this utility model changes, the direction of the characteristics of the features and the relationships between them also changes accordingly. Therefore, directional terms do not constitute an absolute limitation on the characteristics of the features and the relationships between them in space, but only a relative limitation.

[0037] like Figures 1 to 12 As shown, this utility model provides a pelletizing device, including a frame 1. A feeding assembly 3 and a cutting assembly 4 are mounted on the frame 1. The feeding assembly 3 includes a top plate 30, multiple sets of clamping parts 31, a drive roller 32, and an auxiliary row 34. A support 2 is mounted on the frame 1, the top plate 30 is mounted on the support 2, and the multiple sets of clamping parts 31 are mounted on the support 2 via rotating shafts 312. A clamping elastic element 33 is provided between the top plate 30 and the clamping parts 31. A limit rod 3 is provided on the support 2. 13. The limiting rod 313 is used to limit the rotation angle of the pressing part 31; the driving roller 32 is mounted on the bracket 2, and multiple sets of driving wheels 320 are provided on the driving roller 32. The driving wheels 320 correspond one-to-one with the pressing part 31, and the pressing part 31 is used to press the long strip of raw material onto the driving wheel 320; the auxiliary row 34 is mounted on the bracket 2, and the auxiliary row 34 is respectively provided at the front and rear ends of the driving roller 32. The auxiliary row 34 is provided with diaphragm holes 340 corresponding to the driving wheel 320.

[0038] The bracket 2 is provided with a mounting base 20, which is located behind the drive roller 32. A detachable limiting sleeve 23 is installed in the mounting base 20. The limiting sleeve 23 includes a base plate 230 and a cover plate 231. The base plate 230 is installed in the mounting base 20, and the cover plate 231 is installed on the base plate 230. The base plate 230 and the cover plate 231 fit together. Multiple sets of limiting tubes 233 are provided between the base plate 230 and the cover plate 231. The limiting tubes 233 correspond one-to-one with the diaphragm holes 340 on the auxiliary row 34. The diameter of the limiting tubes 233 is slightly larger than the diameter of the long strip of raw material.

[0039] The cutting component 4 is installed on the frame 1 and is located behind the limiting sleeve 23. The cutting component 4 is used to cut the long strip of raw material extending from the limiting tube 233.

[0040] The long strip of raw material (plastic or rubber) extruded from the extruder needs to be cooled. Current cooling methods often involve water cooling tanks. After water cooling, the long strip needs to be dried before cutting. With the above design, the dried strip passes through the diaphragm holes 340 on the auxiliary row 34, and is then pulled through another set of auxiliary rows 34 by the drive roller 32. It then enters the limiting tube 233. Because the diameter of the limiting tube 233 is slightly larger than the diameter of the strip, the long strip can pass smoothly and freely through the limiting tube 233, while preventing the moving strip from shifting, ensuring the accuracy of subsequent cutting.

[0041] Through the above design scheme, the separate design of the base plate 230 and cover plate 231 can avoid material blockage. When the long raw material is blocked in the limiting tube 233, the staff can directly remove the limiting sleeve 23 from the mounting base 20, and then separate the base plate 230 and cover plate 231 to fully expose the limiting tube 233, which is convenient for cleaning the blockage.

[0042] In this embodiment, the pressing part 31 is provided with a pressing wheel 310 and a pressing hand part 311. The pressing wheel 310 is located at the bottom of the pressing part 31 and is used to press the long strip of raw material onto the drive wheel 320. The pressing hand part 311 is located on the side of the pressing part 31 away from the rotating shaft 312, and the lengths of adjacent sets of pressing hand parts 311 are different.

[0043] The auxiliary row 34 is provided with inserts 342 at both ends, and the bracket 2 is provided with slots 21 corresponding to the inserts 342; the auxiliary row 34 is also provided with handles 341 at both ends.

[0044] With the above design, the clamping roller 310 on the clamping part 31 clamps the long strip of material onto the corresponding drive roller 320. When the drive roller 320 rotates, the clamped long strip of material is slowly pulled into the limiting sleeve 23 under the traction of the drive roller 320. When it is necessary to remove the long strip of material or replace it with another type of long strip of material, the user can pull up the hand clamp 311. When pulled up, the hand clamp 311 rotates upward around the pivot 312, causing the clamping roller 310 to move away from the drive roller 320. After the clamping roller 310 leaves the drive roller 320, the long strip of material, no longer restricted, can move freely, making it convenient for the staff to replace the long strip of material. After the staff releases the hand clamp 311, under the action of the clamping elastic element 33, the clamping part 31 will press the clamping roller 310 back against the drive roller 320 to ensure that the long strip of material can be clamped.

[0045] The diaphragm holes 340 on the auxiliary row 34 can scrape off the residual moisture on the long strip of raw material, ensuring that the raw material particles are sufficiently dry after cutting.

[0046] With the above design, the user can align the insert 342 with the slot 21 to install the auxiliary strip 34 on the bracket 2. The handles 341 at both ends allow the user to easily remove the auxiliary strip 34 from the bracket 2. In this embodiment, to prevent the auxiliary strip 34 from loosening and falling off during processing, a slot is provided on the insert 342, and a corresponding protrusion is provided in the slot 21. In this embodiment, the protrusion is made of soft rubber material.

[0047] In this embodiment, the cutting assembly 4 includes a cutting drive 40, a slide 41, a blade holder 42, a cutting blade 43, and a fixing buckle 44. A guide rail 22 is provided on the bracket 2, and the slide 41 is mounted on the guide rail 22. The cutting drive 40 is used to drive the slide 41 to slide on the guide rail 22. The blade holder 42 is hinged to the slide 41 and is used to mount the cutting blade 43. The cutting blade 43 is close to the limiting sleeve 23. A set of fixing buckles 44 is provided at both ends of the slide 41. The fixing buckles 44 are used to fix the blade holder 42 and the slide 41.

[0048] In this embodiment, the cutting drive 40 includes a drive motor and a conversion gear set. The conversion gear set can convert the rotation of the drive motor into reciprocating motion. Through the conversion gear set, the drive motor can drive the slide 41 to reciprocate on the guide rail 22.

[0049] Through the above design scheme, the sliding slide 41 can drive the cutting tool 43 on the tool holder 42 to reciprocate, so that the cutting tool 43 can reciprocate to perform cutting operations and cut the long strip of raw material extending from the limiting tube 233 into granules.

[0050] In this embodiment, the fixed latch 44 is provided with a pressing part 440 and a locking tongue 441. The pressing part 440 is located on the side of the fixed latch 44 away from the slide 41, and the locking tongue 441 is located above the fixed latch 44. Both the slide 41 and the knife holder 42 are provided with locking grooves 45 that fit the locking tongue 441.

[0051] With the above design, the locking buckle 44 can make the tool holder 42 fit tightly against the slide 41 and fix it. After pressing the pressing part 440, the locking tongue 441 leaves the locking groove 45. At this time, the tool holder 42 can rotate freely on the slide 41. After the tool holder 42 is rotated upward, the locking tongue 441 locks the locking groove 45. At this time, the tool holder 42 will be locked on the slide 41 by the locking buckle 44.

[0052] In this embodiment, the width between the two locking tongues 441 is slightly smaller than the interval between the sliding block 41 and the locking groove 45 on the knife block 42, so that the locking tongue 441 and the locking groove 45 are in an interference fit, ensuring that the locking tongue 441 can be firmly locked in the locking groove 45. At the same time, in order to facilitate the smooth entry of the locking tongue 441 into the locking groove 45, the contact surface between the locking tongue 441 and the locking groove 45 is inclined.

[0053] In this embodiment, the cutting tool 43 is provided with oblique cutting blades, and the number and position of the oblique cutting blades correspond one-to-one with the limiting tube 233; the oblique cutting blades can cut the long strip of raw material extending out of the limiting tube 233 from the side during the reciprocating motion.

[0054] In this embodiment, a guide seat 5 is provided on the frame 1. The guide seat 5 is provided with multiple guide grooves 50, and the guide grooves 50 correspond one-to-one with the diaphragm holes 340. The guide seat 5 is located in front of the drive roller 32.

[0055] In this embodiment, an auxiliary roller 51 is provided on the guide seat 5, and the auxiliary roller 51 is located on the side of the guide seat 5 away from the drive roller 32.

[0056] Through the above design scheme, the guide groove 50 on the guide seat 5 can guide the long strip of raw material, so that the long strip of raw material corresponds to each diaphragm hole 340, and the auxiliary roller 51 on the guide seat 5 can initially guide the dried long strip of raw material.

[0057] In this embodiment, the mounting base 20 is provided with a limiting pin 24, and both the base plate 230 and the cover plate 231 are provided with limiting holes 232 corresponding to the limiting pin 24. The limiting pin 24 on the mounting base 20 can help fix the limiting sleeve 23, ensuring that the limiting sleeve 23 can be fixedly installed in the mounting base 20.

[0058] With the above design, when it is necessary to replace the limiting sleeve 23 with a different diameter to accommodate long strips of raw materials of different diameters, the user can press the pressing part 440 to make the locking tongue 441 leave the locking groove 45, and the unrestricted knife holder 42 will automatically fall down, so that the limiting sleeve 23 is fully exposed; then the operator only needs to pull the limiting pin 24 out of the limiting hole 232 to pull the limiting sleeve 23 out of the mounting base 20; insert the required limiting sleeve 23 into the mounting base 20, and then insert the limiting pin 24 to lock the limiting sleeve 23 in the mounting base 20; then turn the knife holder 42 back to the limiting sleeve 23, so that the locking tongue 441 re-locks the locking groove 45 to complete the replacement operation.

[0059] The pelletizing device provided by this utility model, compared with the prior art, uses a clamping elastic element 33 to assist the clamping roller 310 in clamping the long strip of raw material on the drive roller 320. The drive roller 32 drives the long strip of raw material to move towards the limiting tube 233. The limiting tube 233 can restrict the long strip of raw material and prevent it from shifting during the movement, ensuring that the raw material particles cut by the cutting blade 43 are more uniform in size.

[0060] Where there is no conflict, the above embodiments and features can be combined with each other.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A pelletizing device, comprising a frame (1), characterized in that: The frame (1) is provided with a feeding assembly (3) and a cutting assembly (4). The feeding assembly (3) includes a top plate (30), multiple sets of clamping parts (31), a drive roller (32), and an auxiliary row (34). The frame (1) is provided with a bracket (2). The top plate (30) is mounted on the bracket (2). Multiple sets of clamping parts (31) are mounted on the bracket (2) via a rotating shaft (312). A clamping elastic element (33) is provided between the top plate (30) and the clamping parts (31). The bracket (2) is provided with a limit rod (313). The limit rod (313) is provided with a limit rod (313). 3) Used to limit the rotation angle of the pressing part (31); the drive roller (32) is mounted on the bracket (2), and multiple sets of drive wheels (320) are provided on the drive roller (32). The drive wheels (320) correspond one-to-one with the pressing part (31). The pressing part (31) is used to press the long strip of raw material onto the drive wheel (320); the auxiliary row (34) is mounted on the bracket (2), and the auxiliary row (34) is respectively set at the front and rear ends of the drive roller (32). The auxiliary row (34) is provided with diaphragm holes (340) corresponding to the drive wheel (320). A mounting base (20) is provided on the bracket (2). The mounting base (20) is located behind the drive roller (32). A detachable limiting sleeve (23) is installed in the mounting base (20). The limiting sleeve (23) includes a base plate (230) and a cover plate (231). The base plate (230) is installed in the mounting base (20), and the cover plate (231) is installed on the base plate (230). The base plate (230) and the cover plate (231) fit together. Multiple sets of limiting tubes (233) are provided between the base plate (230) and the cover plate (231). The limiting tubes (233) correspond one-to-one with the diaphragm holes (340) on the auxiliary row (34). The diameter of the limiting tubes (233) is slightly larger than the diameter of the long strip material. The cutting assembly (4) is installed on the frame (1) and is located behind the limiting sleeve (23). The cutting assembly (4) is used to cut the long strip of raw material extending from the limiting tube (233).

2. The pelletizing device according to claim 1, characterized in that: The pressing part (31) is provided with a pressing wheel (310) and a pressing hand part (311). The pressing wheel (310) is located at the bottom of the pressing part (31) and is used to press the long strip of raw material onto the drive wheel (320). The pressing hand part (311) is located on the side of the pressing part (31) away from the rotating shaft (312). The lengths of two adjacent sets of pressing hands (311) are different. The auxiliary row (34) is provided with inserts (342) at both ends, and the bracket (2) is provided with slots (21) corresponding to the inserts (342); the auxiliary row (34) is also provided with handles (341) at both ends.

3. The pelletizing device according to claim 1, characterized in that: The cutting assembly (4) includes a cutting drive (40), a slide (41), a knife holder (42), a cutting knife (43), and a fixing buckle (44). A guide rail (22) is provided on the bracket (2). The slide (41) is mounted on the guide rail (22). The cutting drive (40) is used to drive the slide (41) to slide on the guide rail (22). The knife holder (42) is hinged to the slide (41). The knife holder (42) is used to install the cutting knife (43). The cutting knife (43) is close to the limiting sleeve (23). A set of fixing buckles (44) is provided at both ends of the slide (41). The fixing buckles (44) are used to fix the knife holder (42) and the slide (41) in a fixed connection.

4. A pelletizing device according to claim 3, characterized in that: The fixed latch (44) is provided with a pressing part (440) and a locking tongue (441). The pressing part (440) is located on the side of the fixed latch (44) away from the slide (41), and the locking tongue (441) is located above the fixed latch (44). The slide (41) and the knife holder (42) are both provided with locking grooves (45) that fit the locking tongue (441).

5. A pelletizing device according to claim 1, characterized in that: A guide seat (5) is provided on the frame (1). The guide seat (5) is provided with multiple guide grooves (50). The guide grooves (50) correspond one-to-one with the diaphragm holes (340). The guide seat (5) is located in front of the drive roller (32).

6. A pelletizing device according to claim 5, characterized in that: An auxiliary roller (51) is provided on the guide seat (5), and the auxiliary roller (51) is located on the side of the guide seat (5) away from the drive roller (32).

7. A pelletizing device according to claim 1, characterized in that: The mounting base (20) is provided with a limit pin (24), and the base plate (230) and the cover plate (231) are provided with limit holes (232) corresponding to the limit pin (24).

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