Granulation device for flame-retardant master batch

Abstract

A pelletizing device for flame-retardant master batches relates to the technical field of flame-retardant master batch production and comprises a base, a pelletizing table is fixedly mounted on the upper end face of the base, an inwards-concave subsidence area is arranged on the upper end face of the pelletizing table, a groove table plate is fixedly mounted in the inwards-concave subsidence area, a plurality of grooves are distributed in the upper end face of the groove table plate at equal intervals, and the grooves are communicated with the groove table plate. Grooves are formed in the upper end face of the groove table plate, a pressing plate is arranged on the upper end face of the groove table plate, and semi-elliptical latex columns corresponding to the grooves are distributed on the lower end face of the pressing plate. According to the master batch cutting device, the phenomenon that the master batch specification deviates due to the fact that long-strip raw materials of the master batch are in contact with a cutter to be stressed and the long-strip raw materials displace in the pelletizing process, and consequently the finished master batch is uneven in size specification in the pelletizing process is avoided, the uniformity of the master batch is effectively guaranteed, and the master batch which does not meet the specification does not need to be screened out.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant masterbatch production technology, and in particular to a pelletizing device for flame retardant masterbatch. Background Technology

[0002] Flame retardant masterbatch is a form of additive specifically designed to improve the flame retardant properties of plastic products. It is usually made by melt blending a high-efficiency flame retardant and a carrier resin. The initial raw material is made into long strips by an extruder, which are then cooled and pelletized by a pelletizer.

[0003] When using existing pelletizers, we found that many masterbatch particles with abnormal specifications were found in each batch of finished masterbatch, which required manual screening, which was very troublesome. Through observation, we found that the long raw material was subjected to a certain blade force at the moment of contact with the blade, which caused the long raw material to shift and deviate, resulting in uneven pelleting. Utility Model Content

[0004] The purpose of this invention is to provide a pelletizing device for flame-retardant masterbatch to solve the problems mentioned in the background art.

[0005] The technical problem solved by this utility model is achieved through the following technical solution:

[0006] A pelletizing device for flame-retardant masterbatch includes a base, a pelletizing platform fixedly mounted on the upper surface of the base, a concave settling area on the upper surface of the pelletizing platform, a groove plate fixedly mounted in the concave settling area, a plurality of grooves evenly distributed on the upper surface of the groove plate, a pressing plate on the upper surface of the groove plate, and semi-elliptical latex columns corresponding to the grooves distributed on the lower surface of the pressing plate, the semi-elliptical latex columns being able to be embedded in the corresponding grooves. A fixing frame is fixedly mounted at the front and rear edges of the upper surface of the pelletizing platform, a hydraulic press is fixedly mounted on the upper surface of the fixing frame, a telescopic column is fixedly connected to the output end of the hydraulic press, the telescopic column extends downward through the fixing frame, a cutter fixing frame is fixedly mounted on the lower surface of the telescopic column, and a pelletizing cutter is fixedly connected to the lower surface of the cutter fixing frame.

[0007] Preferably, the upper surface of the slot plate is provided with two openings, which are symmetrically distributed about the center line of the slot plate. The lower surface of the pressing plate is fixedly provided with a sliding plate, which is slidably connected in the corresponding opening. A return spring is connected between the bottom end of the sliding plate and the bottom wall of the opening.

[0008] Preferably, each of the fixing frames has a sliding groove on its inner end face, and the front and rear ends of the tool fixing frame are slidably connected in the corresponding sliding groove. Two tool clamps are fixedly installed on the lower end face of the tool fixing frame. The two tool clamps are symmetrically distributed about the center line of the tool fixing frame, and the front and rear ends of the pelletizing tool are respectively embedded in the grooves of the tool clamps.

[0009] Preferably, the upper surface of the clamping plate is provided with extensions at both ends, and a lower pressure plate is slidably mounted on each extension. A compression spring is connected between the lower end face of the lower pressure plate and the upper surface of the clamping plate. A connecting plate is fixedly mounted on the lower end face of each tool clamp, and each connecting plate abuts against the corresponding lower pressure plate.

[0010] Preferably, the outer surface of the semi-elliptical latex column is provided with honeycomb-shaped grooves.

[0011] Preferably, two upright plates are fixedly installed on the upper surface of the base, and a guide cylinder is rotatably installed between the two upright plates. Guide grooves are evenly distributed on the guide cylinder.

[0012] Preferably, a collection box is fixedly installed on the upper surface of the base, and the upper end of the collection box abuts against the inclined surface of the concave settling zone of the pelletizing table.

[0013] The advantages and positive effects of this utility model are:

[0014] This invention, before pelletizing, uses a pressing plate to press down and a semi-elliptical latex column to fully confine the long strip of raw material within the groove. This prevents the long strip of raw material from contacting the cutting tool and being displaced during pelletizing, thus avoiding deviations in the size of the raw material and ensuring uniformity of the finished masterbatch. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a pelletizing device for flame-retardant masterbatch according to this utility model;

[0017] Figure 2 This is a schematic diagram of the pelletizing device for flame-retardant masterbatch according to another perspective.

[0018] Figure 3 This is a partially enlarged schematic diagram showing the pressing plate and the slotted platform in the pelletizing device of the flame-retardant masterbatch of this utility model;

[0019] Figure 4 This is a partially enlarged structural diagram of the blade clamping plate position in the pelletizing device of the flame-retardant masterbatch according to this utility model.

[0020] The markings in the attached diagram are described as follows: base 10; collection box 11; pelletizing table 12; fixing frame 13; chute 14; hydraulic press 15; telescopic column 16; knife fixing frame 17; pelletizing knife 18; upright plate 19; guide cylinder 20; guide groove 21; chute plate 22; groove 23; opening 24; sliding plate 25; pressing plate 26; semi-elliptical latex column 27; knife clamping plate 28; connecting plate 29; extension 30; lower pressure plate 31. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in an illustrative manner. Therefore, they only show the components related to the present invention.

[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0023] The following is combined Figure 1-4 This utility model will be described in detail below. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of front, back, left, right, up, and down in the view are consistent. Figure 1 The directions shown are consistent with the front-facing, back-facing, left-right, up-down directions of the device.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of at least two elements or the interaction relationship of at least two elements, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0026] Please see Figure 1-4 This utility model provides an embodiment of a pelletizing device for flame-retardant masterbatch, comprising a base 10, a pelletizing table 12 fixedly mounted on the upper surface of the base 10, a concave settling area on the upper surface of the pelletizing table 12, one side of the concave settling area being inclined, a collection box 11 fixedly mounted on the upper surface of the base 10, the upper end of the collection box 11 abutting against the inclined surface of the concave settling area of ​​the pelletizing table 12, thereby facilitating the collection of the cut masterbatch into the collection box 11 for collection, and a groove plate 22 fixedly mounted in the concave settling area, the upper surface of the groove plate 22 having a plurality of grooves 23 evenly distributed, the grooves 23 being used to place long strips of raw material to be pelletized, and a pressing plate 26 being provided on the upper surface of the groove plate 22. The lower end face of the 26 is provided with semi-elliptical latex columns 27 corresponding to the grooves 23. The semi-elliptical latex columns 27 can be embedded in the corresponding grooves 23, thereby using the grooves 23 to compress the long strip of raw material, so as to effectively ensure the stability of the long strip of raw material during pelleting and ensure the uniformity of the masterbatch each time pelleting. The upper end face of the pelleting table 12 is fixedly installed with a fixing frame 13 at both ends. The upper end face of the fixing frame 13 is fixedly installed with a hydraulic press 15. The output end of the hydraulic press 15 is fixedly connected with a telescopic column 16. The telescopic column 16 extends downward through the fixing frame 13. The lower end face of the telescopic column 16 is fixedly installed with a knife fixing frame 17. The lower end face of the knife fixing frame 17 is fixedly connected with a pelletizing knife 18.

[0027] It should be noted that, in order to further ensure the stability during pelletizing, in this embodiment, each of the fixing frames 13 is provided with a sliding groove 14 on its inner end face. The front and rear ends of the knife fixing frame 17 are slidably connected in the corresponding sliding groove 14. Two knife clamps 28 are fixedly installed on the lower end face of the knife fixing frame 17. The two knife clamps 28 are symmetrically distributed about the center line of the knife fixing frame 17. The front and rear ends of the pelletizing knife 18 are respectively embedded in the grooves of the knife clamps 28.

[0028] It is worth mentioning that, in this embodiment, the upper surface of the slot plate 22 is provided with two openings 24, which are symmetrically distributed about the center line of the slot plate 22. The lower surface of the pressing plate 26 is fixedly provided with a sliding plate portion 25, which is slidably connected in the corresponding opening 24. A return spring is connected between the bottom end of the sliding plate portion 25 and the bottom wall of the opening 24. The upper surface of the pressing plate 26 is provided with extension portions 30 at both ends, and a lower pressure plate 31 is slidably installed on each extension portion 30. A compression spring is connected between the lower end face of the lower pressure plate 31 and the upper end face of the clamping plate 26. A connecting plate 29 is fixedly installed on the lower end face of each cutter clamp 28. Each connecting plate 29 abuts against the corresponding lower pressure plate 31, so that when pelletizing, the cutter fixing frame 17 moves downward and the connecting plate 29 presses the lower pressure plate 31 downward, causing the clamping plate 26 to slide downward, thereby causing the semi-elliptical latex column 27 to press against the corresponding long strip of raw material, thereby compressing the raw material, and then pelletizing the long strip of raw material.

[0029] It should be noted that, in order to further ensure the stability during pelleting and prevent the long strip of raw material from moving in the circumferential direction, in this embodiment, the outer surface of the semi-elliptical latex column 27 is provided with honeycomb-shaped grooves, thereby further improving the contact friction between the semi-elliptical latex column 27 and the long strip of raw material. When the semi-elliptical latex column 27 is pressed onto the long strip of raw material, the semi-elliptical latex column 27 can undergo a certain deformation to wrap the upper surface of the long strip of raw material, thereby further pressing the long strip of raw material.

[0030] In another embodiment, two upright plates 19 are fixedly installed on the upper surface of the base 10, and a guide cylinder 20 is rotatably installed between the two upright plates 19. The guide cylinder 20 is provided with guide grooves 21 evenly distributed, so that the flame retardant masterbatch material is heated and plasticized by the extruder to form a continuous strip. The long strip of raw material after water cooling can pass through the guide grooves 21 for guidance, making the subsequent pelleting more stable.

[0031] In specific implementation, during pelleting, the flame-retardant masterbatch material is first heated and plasticized by an extruder to form a continuous strip. After water cooling, it gradually passes through the corresponding guide groove 21 for guidance, and then through the corresponding groove 23. At this time, the hydraulic press 15 is started, thereby controlling the tool holder 17 to slide up and down reciprocally. When the tool holder 17 slides down, the connecting plate 29 simultaneously presses down on the lower pressure plate 31, causing the pressing plate 26 to slide down, thereby causing the semi-elliptical latex column 27 to press against the corresponding long strip of raw material. When the semi-elliptical latex column 27 presses against the long strip of raw material, the semi-elliptical... The round latex column 27 can deform to wrap the upper surface of the long strip of raw material, stabilizing it in the groove 23. At this time, the pelletizing blade 18 moves down to cut off the part exposed at the left end of the groove 23, forming masterbatch that falls along the inclined surface into the collection box 11 for collection. This process is repeated to gradually pelletize the long strip of raw material. By pressing down the pressure plate 26, the semi-elliptical latex column 27 can fully restrict the long strip of raw material in the groove 23, effectively preventing displacement of the long strip of raw material during pelletizing, ensuring the uniformity of the cut masterbatch, and thus ensuring the quality of the masterbatch.

[0032] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A pelletizing device for flame-retardant masterbatch, comprising a base (10), characterized in that: A pelletizing table (12) is fixedly installed on the upper surface of the base (10). The upper surface of the pelletizing table (12) is provided with a concave settling area. A groove plate (22) is fixedly installed in the concave settling area. A plurality of grooves (23) are evenly distributed on the upper surface of the groove plate (22). A pressing plate (26) is provided on the upper surface of the groove plate (22). Semi-elliptical latex columns (27) corresponding to the grooves (23) are distributed on the lower surface of the pressing plate (26). The semi-elliptical latex columns (27) can be embedded in the corresponding grooves. In the groove (23), a fixing frame (13) is fixedly installed on the upper end face of the pelletizing table (12) at both the front and rear edges. A hydraulic press (15) is fixedly installed on the upper end face of the fixing frame (13). A telescopic column (16) is fixedly connected to the output end of the hydraulic press (15). The telescopic column (16) extends downward through the fixing frame (13). A knife fixing frame (17) is fixedly installed on the lower end face of the telescopic column (16). A pelletizing knife (18) is fixedly connected to the lower end face of the knife fixing frame (17).

2. The pelletizing device for flame-retardant masterbatch according to claim 1, characterized in that: The upper surface of the slot plate (22) is provided with two openings (24), and the two openings (24) are symmetrically distributed about the center line of the slot plate (22). The lower surface of the pressing plate (26) is fixedly provided with a sliding plate (25), which is slidably connected in the corresponding opening (24). A return spring is connected between the bottom end of the sliding plate (25) and the bottom wall of the opening (24).

3. The pelletizing device for flame-retardant masterbatch according to claim 2, characterized in that: Each of the fixing frames (13) has a sliding groove (14) on its inner end face. The front and rear ends of the tool fixing frame (17) are slidably connected in the corresponding sliding groove (14). Two tool clamps (28) are fixedly installed on the lower end face of the tool fixing frame (17). The two tool clamps (28) are symmetrically distributed about the center line of the tool fixing frame (17). The front and rear ends of the pelletizing tool (18) are respectively embedded in the grooves of the tool clamps (28).

4. The pelletizing device for flame-retardant masterbatch according to claim 3, characterized in that: The upper end face of the clamping plate (26) is provided with extensions (30) at both ends. Each extension (30) is slidably mounted with a lower pressure plate (31). A compression spring is connected between the lower end face of the lower pressure plate (31) and the upper end face of the clamping plate (26). Each tool clamping plate (28) is fixedly mounted with a connecting plate (29) on its lower end face. Each connecting plate (29) abuts against the corresponding lower pressure plate (31).

5. A pelletizing device for flame-retardant masterbatch according to claim 4, characterized in that: The outer surface of the semi-elliptical latex column (27) is provided with honeycomb-shaped grooves.

6. The pelletizing device for flame-retardant masterbatch according to claim 5, characterized in that: Two upright plates (19) are fixedly installed on the upper surface of the base (10), and a guide cylinder (20) is rotatably installed between the two upright plates (19). Guide grooves (21) are evenly distributed in the guide cylinder (20).

7. A pelletizing device for flame-retardant masterbatch according to claim 1, characterized in that: A collection box (11) is fixedly installed on the upper surface of the base (10), and the upper end of the collection box (11) abuts against the inclined surface of the concave settling area of ​​the pelletizing table (12).

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