Granule cutting device for color master batch production

Abstract

The invention relates to the technical field of pelletizing equipment, in particular to a pelletizing device for color master batch production, which comprises a shell, a feeding table fixed on the shell, a traction roller mounted in the shell, and a cutting ring, rotating pipes rotationally butted with the shell are fixed at two ends of the cutting ring, a plurality of cutting knives are fixed on the cutting ring, and the cutting knives are fixed on the cutting ring. A driving part used for driving the cutting ring to rotate and a fixing rod arranged in the cutting ring are installed on the shell, the two ends of the fixing rod penetrate through the rotating pipe and are fixed to the outer wall of the shell, and an adjusting rod component is fixed to the outer side of the fixing rod. The pushing part is in contact with the adjusting rod part, so that the cleaning pipe can be driven to move along the outer side of the cutting knife, residual crushed materials on the outer side are discharged, and the situation that the residual crushed materials reach the cutting knife edge to affect the next pelletizing operation is avoided. Therefore, the pelletizing quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pelletizing equipment, in particular to a pelletizing device for producing masterbatches. Background Art

[0002] Masterbatch is a high-molecular composite colorant made by mixing, plasticizing, dispersing and pelletizing pigments, carrier resins, dispersants and other additives.

[0003] The pelletizing of masterbatch is a key link in the production process. Its cutting method and principle directly affect the particle size uniformity, appearance quality and subsequent processing performance of the product. After the masterbatch is melted and extruded, it is quickly cooled and solidified into solid strips through a water trough. The solid strips are then transported to the pelletizer by a tractor for pelletizing. During the pelletizing process, if the cutting blade rotates too slowly or the feed is fed too quickly, the friction between the blade and the material will increase. In addition, during the pelletizing process, a large amount of debris is generated, and the debris adheres to the outside of the cutting blade. The adhesion of the debris causes the blade edge to become blunt, resulting in burrs, stringiness, uneven particle size and other problems during cutting, which reduces the pelletizing quality. Summary of the Invention

[0004] The object of the present invention is to provide a pelletizing device for masterbatch production to solve the problem raised in the above background art that debris generated during the pelletizing of masterbatch adheres to the blades, thereby affecting the pelletizing quality during subsequent pelletizing.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pelletizing device for masterbatch production, comprising a shell, a feed table being fixed on the shell, a traction roller being installed in the shell, and a cutting ring, both ends of the cutting ring are fixed with rotating tubes that are rotatably docked with the shell, a plurality of cutting knives are fixed on the cutting ring, a driving member for driving the cutting ring to rotate, and a fixed rod arranged in the cutting ring are installed on the shell, both ends of the fixed rod pass through the rotating tube and are fixed to the outer wall of the shell, an adjusting rod component and a cleaning tube arranged on the outside of the cutting knife are fixed to the outside of the fixing rod, docking parts are fixed at both ends of the cleaning tube, a pushing part is installed on the cutting ring, one end of the pushing part is in contact with the adjusting rod component, and the other end is connected to the docking part.

[0006] Preferably, two cleaning tubes are provided and are attached to the outside of the cutting knife. The docking member includes a connecting sleeve that is rotatably docked with the outer ends of the two cleaning tubes, and a connecting plate is fixed to the outside of the connecting sleeve.

[0007] Preferably, the pushing part includes a pushing rod slidably plugged into the cutting ring, one end of the pushing rod is fixed with a connecting rod in contact with the adjusting rod component, and the other end is fixed with a fixing plate, a sliding rod plugged into the connecting plate is fixed on the fixing plate, and a connecting frame fixed to the outside of the pushing rod is fixed to the bottom of the sliding rod, and a tension spring fixed to the connecting frame and the connecting plate is sleeved on the outside of the sliding rod.

[0008] Preferably, the adjusting rod component includes an adjusting wheel and two cam plates, the adjusting wheel and the cam plates are fixed on the outside of the fixed rod, the two cam plates are located at both ends of the adjusting wheel, and a track groove is opened on the outside of the cam plate, and the connecting rod is slidably connected to the track groove.

[0009] Preferably, a plurality of air outlet holes are provided on the outside of the cleaning tube, and the cleaning tube is communicated with the connecting sleeve, and an air injection portion is installed in the cutting ring at the position corresponding to the cutting knife.

[0010] Preferably, the gas injection part includes a piston tube fixed in the cutting ring, a piston plate is provided in the piston tube, and a pushing member that fits with the outer side of the adjusting wheel is fixed to the outer side of the piston plate, two one-way valves facing opposite directions are fixed to the outer side of the piston tube, and an air pipe is fixed to the outer end of one of the one-way valves that vents air outward, and the other end of the air pipe is fixedly connected to the connecting sleeve.

[0011] Preferably, a fitting strip is fixed to the outer side of the cleaning tube, and the fitting strip is magnetically attracted to the outer side of the cutting knife.

[0012] Preferably, the pushing member includes a push rod fixed to the piston plate, a roller fitted with the outer side of the adjusting wheel is fixed to the outer side of the push rod, and an extrusion spring for pushing the roller to move outward is sleeved on the outer side of the push rod.

[0013] Preferably, mutually meshing adjustment gears are fixed to the outer sides of the two cleaning tubes, an adjustment column fixed to one of the cleaning tubes is rotatably mounted on the connecting sleeve, an adjustment plate is fixed to the outer side of the adjustment column, and a docking column adapted to the adjustment plate is fixed on the connecting frame.

[0014] Preferably, the driving member includes a driving motor fixed to the housing via a motor frame, and mutually meshing driving gears are fixed to the output end of the driving motor and the outside of one of the rotating tubes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention optimizes the traditional pelletizer by adding a cleaning tube outside the cutting blade. When the cutting ring rotates, the contact between the pusher and the adjusting rod component can drive the cleaning tube to move along the outside of the cutting blade, discharging the remaining debris outside, preventing the residual debris from reaching the cutting edge and affecting the next pelletizing operation. This improves the pelletizing quality.

[0017] The air injection portion of the present invention can automatically inject air into the cleaning tube as the cutting ring rotates, thereby blowing air to the outside of the cutting blade to avoid debris residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention after partial cross-section;

[0020] Figure 3 This is a partially cutaway rear front view of the housing of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the outer part of the cutting ring of the present invention;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a schematic diagram of the connection between a single cutting blade, a pushing portion, and a gas injection portion of the present invention;

[0024] Figure 7 This is a schematic diagram of the push portion and the cam plate docking of the present invention;

[0025] Figure 8 This is a schematic diagram of the push member and the adjustment wheel docking of the present invention;

[0026] Figure 9 This is a schematic diagram of the steps of the cleaning tube moving along the cutting knife of the present invention;

[0027] Figure 10 This is a schematic structural diagram of the adjusting rod component of the present invention.

[0028] In the figure: 1. outer shell; 2. feed table; 3. pulling roller; 4. cutting ring; 5. rotating tube; 6. cutting knife; 7. driving part; 8. fixing rod; 9. adjusting rod part; 10. cleaning tube; 11. docking part; 12. pushing part; 13. connecting sleeve; 14. connecting plate; 15. pushing rod; 16. connecting rod; 17. fixing plate; 18. sliding rod; 19. connecting frame; 20. tension spring; 21. adjusting wheel; 22. cam plate; 23. track groove; 24. air outlet; 25. air injection part; 26. piston tube; 27. piston plate; 28. pushing part; 29. air pipe; 30. fitting strip; 31. pushing rod; 32. roller; 33. extrusion spring; 34. adjusting gear; 35. adjusting column; 36. adjusting piece; 37. docking column; 38. driving motor; 39. driving gear. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1 - Figure 4 and Figure 10 , a pelletizing device for masterbatch production shown in the figure includes a shell 1, a feed table 2 is fixed on the shell 1, and a traction roller 3 is installed in the shell 1, and also includes a cutting ring 4, a rotating tube 5 that is rotatably docked with the shell 1 is fixed at both ends of the cutting ring 4, a plurality of cutting knives 6 are fixed on the cutting ring 4, a driving member 7 for driving the cutting ring 4 to rotate is installed on the shell 1, and a fixed rod 8 is arranged in the cutting ring 4, both ends of the fixed rod 8 pass through the rotating tube 5 and are fixed to the outer wall of the shell 1, an adjusting rod component 9 is fixed to the outside of the fixed rod 8, and a cleaning tube 10 is arranged on the outside of the cutting knife 6, and docking parts 11 are fixed at both ends of the cleaning tube 10, and a pushing part 12 is installed on the cutting ring 4, one end of the pushing part 12 is in contact with the adjusting rod component 9, and the other end is connected to the docking part 11;

[0031] In this solution, the solid strips on the feed table 2 are introduced into the interior by the rotation of the traction roller 3, and then the driving member 7 generates power to drive the cutting ring 4 to rotate, so that the cutting blade 6 performs a pelletizing operation on the solid strips.

[0032] During the rotation of the cutting ring 4, the pushing portion 12 contacts the outer side of the adjusting rod component 9, thereby driving the docking piece 11 and the cleaning tube 10 to move along the cutting knife 6 to remove the debris remaining on the outer side of the cutting knife 6, thereby preventing the debris from remaining on the cutting edge of the cutting knife 6 and affecting the pelletizing quality.

[0033] For further information, see Figure 4 - Figure 9 There are two cleaning tubes 10, which are attached to the outside of the cutting knife 6. The docking piece 11 includes a connecting sleeve 13 that is rotatably docked with the outer ends of the two cleaning tubes 10, and a connecting plate 14 is fixed to the outside of the connecting sleeve 13.

[0034] Also, see Figure 4 - Figure 9 The pushing portion 12 includes a pushing rod 15 that is slidably plugged into the cutting ring 4. One end of the pushing rod 15 is fixed with a connecting rod 16 that contacts the adjusting rod component 9, and the other end is fixed with a fixing plate 17. A sliding rod 18 that is plugged into the connecting plate 14 is fixed on the fixing plate 17, and a connecting frame 19 fixed to the outside of the pushing rod 15 is fixed to the bottom of the sliding rod 18. A tension spring 20 is fixed to the outside of the sliding rod 18 and fixed to the connecting frame 19 and the connecting plate 14. The design of the tension spring 20 makes the cleaning tube 10 move more smoothly along the cutting knife 6.

[0035] For further information, see Figure 10 The adjusting rod component 9 includes an adjusting wheel 21 and two cam plates 22. The adjusting wheel 21 and the cam plates 22 are fixed to the outside of the fixed rod 8. The two cam plates 22 are located at both ends of the adjusting wheel 21, and a track groove 23 is opened on the outside of the cam plate 22. The connecting rod 16 is slidably plugged into the track groove 23.

[0036] In this solution, the cleaning tube 10 is used to move along the outside of the cutting knife 6 to remove the residual debris on the outside of the cutting knife 6: first, the driving member 7 drives the cutting ring 4 to rotate, thereby driving multiple cutting knives 6 to cut the solid strip material in turn to realize the pelletizing operation. During the rotation of the cutting ring 4, the push rod 15 will be driven to rotate synchronously, so that the connecting rod 16 moves along the track groove 23, thereby driving the push rod 15 to extend outward, driving the connecting sleeve 13 and the two cleaning tubes 10 to move outward along the cutting knife 6, and discharging and removing the residual debris on the outside of the cutting knife 6, thereby avoiding residual debris at the blade of the cutting knife 6, affecting the pelletizing operation of the masterbatch.

[0037] For further information, see Figure 4 The driving member 7 includes a driving motor 38 fixed to the housing 1 through a motor frame, and a driving gear 39 meshing with each other is fixed to the output end of the driving motor 38 and the outer side of one of the rotating tubes 5;

[0038] In this solution, the driving motor 38 is used to drive one of the driving gears 39 to rotate, so that the driving gear 39 outside the rotating tube 5 rotates accordingly, thereby driving the cutting ring 4 to rotate accordingly, so that the cutting ring 4 rotates and drives multiple cutting knives 6 to rotate, thereby performing a pelletizing operation on the solid strip material.

[0039] For further information, see Figure 6 - Figure 9 , a plurality of air outlet holes 24 are opened on the outside of the cleaning tube 10, and the cleaning tube 10 is connected to the connecting sleeve 13, and an air injection part 25 is installed at the position corresponding to the cutting knife 6 in the cutting ring 4;

[0040] The gas injection portion 25 includes a piston tube 26 fixed in the cutting ring 4, a piston plate 27 is provided in the piston tube 26, and a pusher 28 is fixed to the outer end of the piston plate 27, which is in contact with the outer side of the adjusting wheel 21. Two one-way valves facing opposite directions are fixed to the outer side of the piston tube 26, and an air pipe 29 is fixed to the outer end of one of the one-way valves that discharges air outward. The other end of the air pipe 29 is fixedly connected to the connecting sleeve 13.

[0041] Also, see Figure 6 - Figure 9 The pushing member 28 includes a push rod 31 fixed to the piston plate 27, a roller 32 fixed to the outer end of the push rod 31 and in contact with the outer side of the adjusting wheel 21, and an extrusion spring 33 is sleeved on the outer side of the push rod 31 to push the roller 32 to move outward.

[0042] In this solution, the principle of blowing air to the outside of the cutting knife 6 to avoid debris residue is: first, the rotation of the cutting ring 4 is utilized to drive the piston tube 26 to rotate accordingly, and the extrusion spring 33 is cooperated to make the roller 32 on the pushing member 28 move in contact with the outside of the adjusting wheel 21, thereby driving the push rod 31 to reciprocate and extend, so that the piston plate 27 in the piston tube 26 moves back and forth. Under the action of two one-way valves in opposite directions, when the air pressure in the piston tube 26 increases, air can be injected into the cleaning tube 10 through the air pipe 29, and then discharged outward through the air outlet 24, so as to achieve blowing air to the outside of the cutting knife 6, avoid debris adhering to the outside of the cutting knife 6, and facilitate the subsequent cleaning of the residual debris on the outside of the cutting knife 6.

[0043] In this solution, the specific operation process for removing the debris outside the cutting blade 6 includes the following steps:

[0044] In the first step, the personnel first pull the extruded strip material into the feed table 2 and pull the strip material through the pulling roller 3;

[0045] In the second step, the driving member 7 drives the cutting ring 4 to rotate, so that the cutting knife 6 pelletizes the strip material;

[0046] In the third step, the self-rotation of the cutting ring 4, in conjunction with the interaction between the pushing portion 12 and the adjusting rod 9, drives the cleaning tube 10 to move along the outside of the cutting blade 6 to remove the remaining debris outside the cutting blade 6;

[0047] In the fourth step, during the rotation of the cutting ring 4 , the gas injection portion 25 is driven to inject gas into the cleaning tube 10 , so that the gas outlet 24 blows gas outward to prevent debris from adhering to the outside of the cutting blade 6 .

[0048] In this solution, each time the cutting ring 4 rotates once, the connecting rod 16 at the outer end of the push rod 15 will move one circle along the track groove 23, thereby causing the push rod 15 to telescope once, driving the cleaning tube 10 to push once along the outside of the cutting knife 6 to remove the residual debris. When the cutting ring 4 rotates, the roller 32 in the air injection part 25 will contact the concave and convex surface on the outside of the adjusting wheel 21 to achieve continuous reciprocating movement, thereby achieving continuous air injection operation, achieving a better blowing effect, effectively preventing debris from remaining on the outside of the cutting knife 6, and facilitating the subsequent removal of residues on the outside of the cutting knife 6.

[0049] Example 2: Please refer to Figure 5 as well as Figure 9 This embodiment further explains the first embodiment. The difference lies in the optimization of the outer parts of the cleaning tube 10, so that when the cleaning tube 10 moves to the cutting edge of the cutting knife 6, it can rotate a certain angle and blow air at the cutting edge to assist in removing debris.

[0050] Specifically, mutually meshing adjustment gears 34 are fixed to the outside of the two cleaning tubes 10, an adjustment column 35 fixed to one of the cleaning tubes 10 is rotatably mounted on the connecting sleeve 13, an adjustment plate 36 is fixed to the outside of the adjustment column 35, and a docking column 37 adapted to the adjustment plate 36 is fixed to the connecting frame 19;

[0051] Also, see Figure 9 A bonding strip 30 is fixed to the outside of the cleaning tube 10, and the bonding strip 30 is magnetically attracted to the outside of the cutting knife 6.

[0052] When the cleaning tube 10 moves along the cutting blade 6, the cleaning tube 10 and the connecting sleeve 13 will move down along the sliding rod 18, so that the adjusting piece 36 contacts the docking post 37, and then resists each other, driving the adjusting post 35 and one of the cleaning tubes 10 to rotate and adjust. Under the action of the two adjusting gears 34, the two cleaning tubes 10 rotate synchronously in opposite directions, so that the air outlet 24 faces the cutting blade 6, so that when the cleaning tube 10 moves to the cutting edge of the cutting blade 6, it can blow air to the cutting edge of the cutting blade 6, which helps the cleaning tube 10 to remove the residual debris at the cutting edge of the cutting blade 6. When the cleaning tube 10 retreats, the bonding strip 30 on the outside of the cleaning tube 10 can be reversed and reset by magnetic attraction, so that the air outlet 24 is reset, and the blowing direction is changed to blow toward the outside of the cutting blade 6, to prevent the debris generated during the pelletizing process from adhering to the outside of the cutting blade 6.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pelletizing device for masterbatch production, comprising: A housing (1), a feeding platform (2) is fixed on the housing (1), and a traction roller (3) is installed in the housing (1); It is characterized by further comprising: A cutting ring (4), wherein rotating tubes (5) are fixed at both ends of the cutting ring (4) and are rotatably docked with the housing (1), a plurality of cutting knives (6) are fixed on the cutting ring (4), and a driving member (7) for driving the cutting ring (4) to rotate is installed on the housing (1), and; a fixing rod (8) disposed in the cutting ring (4), wherein both ends of the fixing rod (8) pass through the rotating tube (5) and are fixed to the outer wall of the housing (1), and an adjusting rod component (9) is fixed to the outer side of the fixing rod (8); and A cleaning tube (10) is arranged outside the cutting blade (6), and docking pieces (11) are fixed at both ends of the cleaning tube (10). A pushing portion (12) is installed on the cutting ring (4), and one end of the pushing portion (12) contacts the adjusting rod component (9), and the other end is connected to the docking piece (11).

2. A pelletizing device for masterbatch production according to claim 1, characterized in that: The cleaning tubes (10) are provided with two and are attached to the outside of the cutting blade (6). The docking member (11) comprises a connecting sleeve (13) that is rotatably docked with the outer ends of the two cleaning tubes (10). A connecting plate (14) is fixed to the outside of the connecting sleeve (13).

3. A pelletizing device for masterbatch production according to claim 2, characterized in that: The pushing portion (12) includes a pushing rod (15) slidably plugged into the cutting ring (4), one end of the pushing rod (15) is fixed with a connecting rod (16) in contact with the adjusting rod component (9), and the other end is fixed with a fixing plate (17), a sliding rod (18) plugged into the connecting plate (14) is fixed on the fixing plate (17), and a connecting frame (19) fixed to the outside of the pushing rod (15) is fixed to the bottom of the sliding rod (18), and a tension spring (20) fixed to the connecting frame (19) and the connecting plate (14) is sleeved on the outside of the sliding rod (18).

4. The pelletizing device for masterbatch production according to claim 3, characterized in that: The adjusting rod component (9) comprises an adjusting wheel (21) and two cam plates (22). The adjusting wheel (21) and the cam plates (22) are fixed on the outside of the fixing rod (8). The two cam plates (22) are located at both ends of the adjusting wheel (21). A track groove (23) is provided on the outside of the cam plates (22). The connecting rod (16) is slidably connected to the track groove (23).

5. The pelletizing device for masterbatch production according to claim 4, characterized in that: A plurality of air outlet holes (24) are provided on the outside of the cleaning tube (10), and the cleaning tube (10) and the connecting sleeve (13) are communicated with each other. An air injection portion (25) is installed in the cutting ring (4) at a position corresponding to the cutting knife (6).

6. The pelletizing device for masterbatch production according to claim 5, characterized in that: The gas injection portion (25) includes a piston tube (26) fixed in the cutting ring (4), a piston plate (27) is provided in the piston tube (26), and a pusher (28) is fixed to the outer end of the piston plate (27) and is in contact with the outer side of the regulating wheel (21), two one-way valves facing opposite directions are fixed to the outer side of the piston tube (26), and an air pipe (29) is fixed to the outer end of one of the one-way valves for emitting air outward, and the other end of the air pipe (29) is fixedly connected to the connecting sleeve (13).

7. The pelletizing device for masterbatch production according to claim 1, characterized in that: A bonding strip (30) is fixed to the outside of the cleaning tube (10), and the bonding strip (30) is magnetically attracted to the outside of the cutting knife (6).

8. The pelletizing device for masterbatch production according to claim 6, characterized in that: The pushing member (28) includes a push rod (31) fixed to the piston plate (27), a roller (32) fixed to the outer end of the push rod (31) and in contact with the outer side of the regulating wheel (21), and an extrusion spring (33) for pushing the roller (32) outward is sleeved on the outer side of the push rod (31).

9. The pelletizing device for masterbatch production according to claim 3, characterized in that: The outer sides of the two cleaning tubes (10) are fixed with mutually meshing adjusting gears (34); the connecting sleeve (13) is rotatably mounted with an adjusting column (35) fixed to one of the cleaning tubes (10); an adjusting plate (36) is fixed to the outer side of the adjusting column (35); and a docking column (37) adapted to the adjusting plate (36) is fixed to the connecting frame (19).

10. The pelletizing device for masterbatch production according to claim 1, characterized in that: The driving member (7) comprises a driving motor (38) fixed to the housing (1) via a motor frame, and mutually meshing driving gears (39) are fixed to the output end of the driving motor (38) and the outside of one of the rotating tubes (5).

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