Color master batch granulator
By using an annular bracket and a vertically installed cutter in the masterbatch pelletizer, the cutting efficiency problem caused by the long return time of the cutting knife in the prior art is solved, and higher cutting efficiency and production progress are achieved.
Patent Information
- Application Number
- CN202420577001.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The existing masterbatch pelletizers use cylinders or hydraulic cylinders to drive the cutting knife, resulting in a long return time of cutting time and low cutting efficiency, and cannot achieve high working efficiency.
A masterbatch pelletizer is designed, which uses an annular bracket and a vertically installed cutting knife. The cutting knife can continuously cut under the rotation of the annular bracket. The cutting interval is only affected by the rotation speed of the annular bracket, which improves the cutting efficiency.
Through the continuous rotation of the annular bracket, the cutting interval of the cutter is only affected by the rotation speed, which greatly improves the cutting efficiency and improves the overall production progress.
Smart Images
Figure CN222553948U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of masterbatch processing, in particular to a masterbatch pelletizer. Background Art
[0002] The full name of masterbatch is masterbatch, also called color seed. It is a new type of colorant special for polymer materials, also known as pigment preparation. Masterbatch is mainly used in plastics. Masterbatch is composed of three basic elements: pigment or dye, carrier and additive. It is an aggregate made by uniformly loading an extraordinary amount of pigment into the resin, which can be called pigment concentrate. Therefore, its tinting power is higher than the pigment itself. During processing, a small amount of masterbatch is mixed with uncolored resin to achieve colored resin or products with designed pigment concentration. During the production process of masterbatch, the pigment must be refined to improve the dispersibility and tinting power of the pigment.
[0003] After the masterbatch is extruded from the extruder, it is made into strips. A cutting device is needed to cut the strip masterbatch into granules. Existing masterbatch pelletizers usually use a workbench with a cutter for pelletizing. However, the current pelletizers still have certain shortcomings, because the cutter they use needs to be driven up and down by a cylinder or a hydraulic cylinder. After each downward movement for cutting, there is a process of returning upwards, and then cutting down again. Due to the working principles of the cylinder and the hydraulic cylinder, it takes a certain amount of time for the cutter to return each time, resulting in the cutter's working speed for cutting strip masterbatch being limited, and it is impossible to achieve a high working efficiency. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a masterbatch pelletizer, which solves the problem of insufficient work efficiency in the prior art.
[0005] According to an embodiment of the utility model, a masterbatch pelletizer comprises a feed conveyor belt and a cutting device arranged at the end of the feed conveyor belt, the feed conveyor belt is arranged horizontally, the cutting device comprises a base, an annular bracket rotatably mounted on the base, and a plurality of cutters fixed on the annular bracket, the annular bracket is arranged vertically, and the height of its center is the same as the height of the upper surface of the feed conveyor belt, the annular bracket comprises two circular rings arranged in parallel, the cutters are arranged perpendicular to the circular rings outside the circular rings, the spacing between adjacent cutters is equal, and the cutters are always tangent to the circle coaxial with the circular ring and passing through the two ends thereof, the end of the feed conveyor belt is exactly located at the outer edge of the circle where the cutters are located, so that the cutters just pass the end position of the feed conveyor belt when rotating and are perpendicular to the feed conveyor belt.
[0006] Furthermore, a pressing roller is provided at the front end of the feed conveyor belt, which is horizontally arranged and perpendicular to the conveying direction of the feed conveyor belt. The pressing roller is located above the feed conveyor belt and the distance between the pressing roller and the feed conveyor belt matches the diameter of the masterbatch.
[0007] Furthermore, a downwardly inclined discharge trough is provided at the end of the feed conveyor belt, one end of which is located inside the annular bracket and directly below the end of the discharge conveyor belt, and the other end is located inside the annular bracket or extends obliquely to the outside of the annular bracket.
[0008] A horizontal support plate is also provided between the discharge trough and the end of the feed conveyor belt. The length of the support plate is less than the length of the masterbatch, and a gap is provided between the support plate and the feed conveyor belt for the cutter to rotate through.
[0009] Furthermore, a discharging funnel is connected to the end of the discharging trough, and a discharging conveyor belt perpendicular to the annular bracket is arranged at the bottom of the discharging funnel.
[0010] Furthermore, the interior of one of the circular rings of the annular bracket is closed to form a disc structure, a rotating shaft is coaxially connected to the middle of the disc structure, and the rotating shaft extends from the middle of the other circular ring and is connected to a motor.
[0011] Furthermore, the outer diameters of the two circular rings of the annular bracket are larger than the diameter of the circle where the cutter is located, and annular guide rails are provided on the outside of the circular rings, so that the two circular rings can rotate just inside the two annular guide rails, and coaxial gear rings are provided on the inner edges of the circular rings. A parallel driving shaft is provided inside the annular bracket, and two gears are provided on the outside of the driving shaft, which are respectively meshed with the gear rings on the two circular rings, and one end of the driving shaft is connected to a motor.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The cutting device of the utility model includes an annular bracket, and the cutter is perpendicular to the circular surface where the annular bracket is located, and is tangent to the circle passing through the cutter, that is, the cutter is tangent to the arc-shaped outer side surface of a coaxial cylindrical structure in the annular bracket. When the cutter rotates to the end position of the feed conveyor belt, it passes through the end of the feed conveyor belt perpendicularly to the surface of the feed conveyor belt, and cuts off the strip masterbatch extending to the outside of the end of the feed conveyor belt. Because the annular bracket rotates continuously, the cutting interval of the cutter is only affected by the rotation speed of the annular bracket, so the cutting efficiency can be greatly improved and the overall production progress can be accelerated. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the lateral structure of an embodiment of the utility model.
[0015] Figure 2This is a structural diagram of the cutting device in Example 1 of the utility model.
[0016] Figure 3 This is a structural diagram of the cutting device in Example 2 of the utility model.
[0017] In the above drawings: 1. feed conveyor belt; 2. annular bracket; 3. base; 4. discharge trough; 5. discharge funnel; 6. discharge conveyor belt; 7. rotating shaft; 8. annular guide rail; 9. driving shaft; 11. pressing roller; 21. circular ring; 22. cutting knife; 91. gear; 92. gear ring; 211. disc structure. DETAILED DESCRIPTION
[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] Embodiment 1:
[0020] like Figure 1 As shown, the embodiment of the utility model provides a masterbatch pelletizer, which includes a feed conveyor belt 1 and a cutting device arranged at the end of the feed conveyor belt 1.
[0021] Specifically, the feed conveyor belt 1 is horizontally arranged, and a pressing roller 11 is also arranged at the front end of the feed conveyor belt 1. The pressing roller 11 is horizontally arranged and perpendicular to the conveying direction of the feed conveyor belt 1. The pressing roller 11 is located above the feed conveyor belt 1 and the distance between the pressing roller 11 and the feed conveyor belt 1 matches the diameter of the masterbatch. The strip-shaped masterbatch just extends to the outside of the end of the feed conveyor belt 1 after passing through the area between the pressing roller 11 and the feed conveyor belt 1. When being cut, the pressing roller 11 can be used to fix it in the vertical direction to prevent it from being offset and affecting the cutting effect.
[0022] In this embodiment, the cutting device includes a base 3, an annular bracket 2 rotatably mounted on the base 3, and a plurality of cutters 22 fixed on the annular bracket 2. The annular bracket 2 is vertically arranged, and the height of its center is the same as the height of the upper surface of the feed conveyor belt 1. The annular bracket 2 includes two circular rings 21 arranged in parallel. The cutters 22 are arranged perpendicular to the circular rings 21 on the outside of the circular rings 21. The spacing between adjacent cutters 22 is equal, and the cutters 22 are always tangent to a circle coaxial with the circular ring 21 and passing through both ends thereof. The end of the feed conveyor belt 1 is located exactly on the outer edge of the circle where the cutters 22 are located, so that the cutters 22 pass exactly through the end position of the feed conveyor belt 1 when rotating and are perpendicular to the feed conveyor belt 1.
[0023] When the cutter 22 rotates to the end of the feed conveyor belt 1, it passes through the end of the feed conveyor belt 1 perpendicularly to the surface of the feed conveyor belt 1, thereby cutting off the strip masterbatch extending outside the end of the feed conveyor belt 1. Since the annular support 2 rotates continuously, the cutting interval of the cutter 22 is only affected by the rotation speed of the annular support 2, so the cutting efficiency can be greatly improved.
[0024] like Figure 2 As shown, preferably, the interior of one of the circular rings 21 of the annular bracket 2 is closed to form a disc structure 211, and the middle of the disc structure 211 is coaxially connected to a rotating shaft 7, and the rotating shaft 7 extends from the middle of the other circular ring 21 and is connected to a motor. The disc structure 211 is driven to rotate by the motor, thereby driving the entire annular bracket 2 to rotate, that is, completing the driving of the cutter 22.
[0025] In a further solution of this embodiment, a downwardly inclined discharge trough 4 is further provided at the end of the feed conveyor belt 1, one end of the discharge trough 4 is located inside the annular bracket 2 and directly below the end of the discharge conveyor belt 6, and the other end is located inside the annular bracket 2 or extends obliquely to the outside of the annular bracket 2. A discharge hopper 5 is connected to the end of the discharge trough 4, and a discharge conveyor belt 6 perpendicular to the annular bracket 2 is provided at the bottom of the discharge funnel 5. The cut masterbatch falls downward into the discharge trough 4, then slides into the discharge hopper 5, and finally enters the discharge conveyor belt 6, and is transported to subsequent equipment.
[0026] Preferably, a horizontal support plate is provided between the discharge trough 4 and the end of the feed conveyor belt 1, the length of the support plate is less than the length of the masterbatch, and a gap is provided between the support plate and the feed conveyor belt 1 for the cutter 22 to rotate through. The support plate can cooperate with the feed conveyor belt 1 to provide support for both the front and rear ends of the contact position between the masterbatch and the cutter 22, so that the cutting pressure is more uniform, the cutting surface is smoother, and the product quality of the masterbatch is improved.
[0027] Embodiment 2:
[0028] like Figure 3 As shown, the rest of the present embodiment is the same as that in embodiment 1, except that:
[0029] The outer diameter of the two circular rings 21 of the annular bracket 2 is larger than the diameter of the circle where the cutter 22 is located, and the outer rings 21 are sleeved with an annular guide rail 8, so that the two circular rings 21 rotate just inside the two annular guide rails 8, and the inner edge of the circular rings 21 is provided with a coaxial gear ring 92, and the inner side of the circular rings 21 is provided with a parallel driving shaft 9, and the outer side of the driving shaft 9 is sleeved with two gears 91, and the gears 91 are respectively meshed with the gear rings 92 on the two circular rings 21, and one end of the driving shaft 9 is connected to a motor. The motor drives the gear 91 to rotate through the driving shaft 9, and then the gear 91 drives the circular ring 21 to rotate through the gear ring 92, thereby rotating the entire annular bracket 2 and the cutter 22.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A masterbatch pelletizer, characterized in that: It includes a feed conveyor belt and a cutting device arranged at the end of the feed conveyor belt, the feed conveyor belt is arranged horizontally, the cutting device includes a base, an annular bracket rotatably mounted on the base and a plurality of cutters fixed on the annular bracket, the annular bracket is arranged vertically, and the height of its center is the same as the height of the upper surface of the feed conveyor belt, the annular bracket includes two circular rings arranged in parallel, the cutters are arranged outside the circular rings vertically, the spacing between adjacent cutters is equal, and the cutters are always tangent to the circle coaxial with the circular ring and passing through the two ends thereof, and the end of the feed conveyor belt is exactly located at the outer edge of the circle where the cutters are located, so that the cutters just pass the end of the feed conveyor belt when rotating and are perpendicular to the feed conveyor belt.
2. A masterbatch pelletizer according to claim 1, characterized in that: A pressing roller is also provided at the front end of the feed conveyor belt. The pressing roller is horizontally arranged and perpendicular to the conveying direction of the feed conveyor belt. The pressing roller is located above the feed conveyor belt and the distance between the pressing roller and the feed conveyor belt matches the diameter of the masterbatch.
3. A masterbatch pelletizer according to claim 1, characterized in that: The end of the feed conveyor belt is also provided with a downwardly inclined discharge trough, one end of which is located inside the annular bracket and directly opposite to the bottom of the end of the discharge conveyor belt, and the other end is located inside the annular bracket or extends obliquely to the outside of the annular bracket.
4. A masterbatch pelletizer as claimed in claim 3, characterized in that: A horizontal support plate is also provided between the discharge trough and the end of the feed conveyor belt. The length of the support plate is less than the length of the masterbatch, and a gap is provided between the support plate and the feed conveyor belt for the cutter to rotate through.
5. A masterbatch pelletizer as claimed in claim 3, characterized in that: The end of the discharge trough is connected with a discharge hopper, and the bottom of the discharge hopper is provided with a discharge conveyor belt perpendicular to the annular bracket.
6. A masterbatch pelletizer according to claim 1, characterized in that: The interior of one of the circular rings of the annular bracket is closed to form a disc structure, a rotating shaft is coaxially connected to the middle of the disc structure, and the rotating shaft extends from the middle of the other circular ring and is connected to a motor.
7. A masterbatch pelletizer according to claim 1, characterized in that: The outer diameters of the two circular rings of the annular bracket are larger than the diameter of the circle where the cutter is located, and an annular guide rail is provided on the outside of the circular rings, so that the two circular rings can rotate just inside the two annular guide rails. Coaxial gear rings are provided on the inner edges of the circular rings. A parallel driving shaft is provided inside the annular bracket, and two gears are provided on the outside of the driving shaft, which are respectively meshed with the gear rings on the two circular rings, and one end of the driving shaft is connected to a motor.