Cooling pelletizing device

Abstract

The utility model discloses a cooling pelletizing device, and particularly relates to the field of high polymer material production. The cooling pelletizing device comprises a machine frame, a conveying belt is arranged on the inner side of the machine frame, a fixed suspension is fixedly erected on the machine frame, and a crank transmission structure is arranged on the fixed suspension. The crank transmission structure comprises a pair of rotating seats fixedly connected to the inner bottom of the fixed suspension, shaft rods rotationally connected to the rotating seats and a crank assembly arranged on the pair of shaft rods, a pelletizing cutter is arranged on the crank assembly, and a pair of telescopic rods is fixedly connected to the top of the pelletizing cutter; and one end, back on to the dicing cutter, of the telescopic rod is fixedly connected to the inner bottom position of the fixed suspension. The high polymer material granulating device solves the technical problems that an existing high polymer material granulating device adopts a single vibration mode to solve the adhesion problem, the thoroughness is not enough, the granulating quality cannot be guaranteed, meanwhile, the granulating cost is increased, and the practicability of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the field of polymer material production, and more specifically, to a cooling and pelletizing device. Background Art

[0002] Polymer compounds, referred to as polymers, are also called macromolecules. Generally, they refer to compounds with a relative molecular mass of thousands to millions. Most polymer compounds are mixtures of many homologues with different relative molecular masses. Therefore, the relative molecular mass of polymer compounds is the average relative molecular mass. When processing polymer materials, a pelletizing device will be used.

[0003] Patent No. CN217494828U discloses a cooling pelletizing device for polymer material production, including a mobile support mechanism, a feeding mechanism, a cutting mechanism, and a unloading mechanism. The cutting mechanism is arranged inside the mobile support mechanism, the feeding mechanism is arranged in front of the cutting mechanism, and the unloading mechanism is arranged below the feeding mechanism and the cutting mechanism; the feeding mechanism includes a driving roller, a guide roller, a first gear box, and a first driving motor. The driving roller is arranged inside the mobile support mechanism, and the guide roller is arranged above the driving roller. The driving roller is driven to rotate by the first driving motor so that the raw material can be moved, the cutting tool is driven to rotate by the second driving motor to cut the raw material, and the guide plate is driven to vibrate by the vibration motor to move the raw material, which can improve production efficiency, prevent raw material adhesion, and improve processing quality.

[0004] In the above patent, the inventor believes that although the patent reduces the probability of adhesion of pelletized polymer materials through vibration transmission when in use, the pelletized materials have temperature when extruded by the extruder, and the use of a single vibration form to solve the adhesion problem is not thorough enough, and the quality of the pelletizing cannot be guaranteed. At the same time, the vibration anti-sticking method uses an independent vibration device to work, and there is no effective linkage structure with the pelletizing structure to achieve drive, which increases the pelletizing cost and reduces the practicality of the device. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a cooling pelletizing device. The technical problem to be solved by the utility model is that the current pelletizing device adopts a single vibration form to solve the adhesion problem, which is not thorough enough, the quality of pelletizing cannot be guaranteed, and the pelletizing cost is increased, which reduces the practicality of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling pelletizing device, comprising a machine frame, a conveyor belt is arranged on the inner side of the machine frame, a fixed suspension is fixedly mounted on the machine frame, a crank transmission structure is arranged on the fixed suspension, the crank transmission structure comprises a pair of rotating seats fixedly connected to the inner bottom of the fixed suspension, an axle rod rotatably connected to each rotating seat and a crank assembly arranged on the pair of axles, a pelletizing knife is arranged on the crank assembly, a pair of telescopic rods are fixedly connected to the top of the pelletizing knife, and the telescopic rods are facing away from the pelletizing knife. One end of the knife is fixedly connected to the inner bottom position of the fixed suspension, and a rotation drive unit for driving the shaft rod to rotate is provided on the fixed suspension. A cooling structure is provided on the fixed suspension, and the cooling structure includes a speed-increasing gear box and a fan blade fixedly connected to the output shaft end of the speed-increasing gear box. The input shaft end of the speed-increasing gear box is fixedly connected to the end of one of the shaft rods, and the fan blade is located directly above the conveyor belt. A vibrating bucket is rotatably connected to the bottom of the machine frame, and a reciprocating swing arm structure is provided on the vibrating bucket and the rotation drive unit.

[0007] In a preferred embodiment, the crank assembly includes a crankshaft, a rotating sleeve rotatably connected to the crankshaft, and a first connecting rod hinged to the rotating sleeve, and the pelletizer is hinged to an end of the first connecting rod facing away from the rotating sleeve.

[0008] In a preferred embodiment, the rotary drive unit includes a rotary motor, a first bevel gear fixedly connected to the power output end of the rotary motor, and a second bevel gear meshingly connected to the first bevel gear, and the second bevel gear is coaxially fixed to one end of one of the shafts.

[0009] In a preferred embodiment, a pair of hinged rods are rotatably connected between the vibration bucket and the machine frame.

[0010] In a preferred embodiment, a support rod is fixedly connected to one of the rotating seats, and the reciprocating swing arm structure includes a rotating column rotatably connected to the support rod, a third bevel gear fixedly connected to one end of the rotating column, an eccentric disk fixedly connected to the end side of the third bevel gear, and a swing arm rod eccentrically rotatably connected to the end face of the eccentric disk.

[0011] In a preferred embodiment, the third bevel gear is meshingly connected to the first bevel gear, and one end of the swing arm facing away from the eccentric disk is hinged to the inner side of the vibrating bucket.

[0012] Technical effects and advantages of the utility model:

[0013] 1. A cooling pelletizing device of the utility model is characterized in that a rotational force is imparted to a crank transmission structure by a rotational drive unit, so that a pelletizer based on the crank transmission structure can realize reciprocating pelletizing operation on the extruded polymer raw material transmitted on the conveyor belt. At the same time, the rotation of the crank transmission structure can prompt the speed increasing gear box to impart high-speed rotational force to the fan blades, and the fan blades are used to blow air to dissipate heat to the polymer raw material on the conveyor belt, thereby reducing the extrusion heat of the polymer raw material. In this way, pelletizing with the pelletizer can improve the pelletizing quality and reduce the anti-stickiness.

[0014] 2. A cooling pelletizing device of the utility model is provided with a vibrating bucket and a reciprocating swing arm structure. While the rotating drive unit provides a rotational force for the crank transmission structure, the third bevel gear operates on the first bevel gear to drive the eccentric disk to rotate. The swing arm and the eccentric disk are eccentrically rotated. At the same time, the vibrating bucket is rotatably connected to the machine frame through a hinged rod. In this way, the rapid swing frequency of the vibrating bucket can achieve a vibration effect. In this way, when the pelletized polymer raw materials fall into the vibrating bucket for loading and unloading, the anti-adhesion effect can be further achieved. While improving the pelletizing quality, the driving equipment of the vibrating bucket is also reduced to meet the driving linkage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 It is a schematic structural diagram of the overall first viewing angle of the utility model.

[0017] Figure 2 It is a schematic structural diagram of the overall second viewing angle of the utility model.

[0018] Figure 3 For this utility model Figure 1 Schematic diagram of the structure without conveyor belt and vibrating bucket.

[0019] Figure 4 It is a structural schematic diagram of the vibrating bucket and reciprocating swing arm structure of the utility model.

[0020] The accompanying drawings are marked as follows: 1. machine frame; 2. transmission belt; 3. fixed suspension; 4. crank transmission structure; 41. rotating seat; 42. shaft; 43. crank shaft; 44. rotating sleeve; 45. first connecting rod; 5. rotation drive unit; 51. rotating motor; 52. first bevel gear; 53. second bevel gear; 6. pelletizing knife; 7. telescopic rod; 8. cooling structure; 81. speed increasing gear box; 82. fan blades; 9. vibrating bucket; 10. support rod; 11. reciprocating swing arm structure; 111. rotating column; 112. third bevel gear; 113. eccentric disk; 114. swing arm rod; 12. articulated rod. DETAILED DESCRIPTION

[0021] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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 creative work are within the scope of protection of the present invention.

[0022] Combined with reference Figure 1-Figure 4The utility model provides a cooling pelletizing device, comprising a machine frame 1, a conveyor belt 2 is arranged on the inner side of the machine frame 1, the conveyor belt 2 can be driven and transmitted by an external motor, a fixed suspension 3 is fixedly mounted on the machine frame 1, a crank transmission structure 4 is arranged on the fixed suspension 3, the crank transmission structure 4 comprises a pair of rotating seats 41 fixedly connected to the inner bottom of the fixed suspension 3, a shaft 42 rotatably connected to each rotating seat 41 and a crank assembly arranged on the pair of shafts 42, a pelletizing knife 6 is arranged on the crank assembly, the crank assembly can be used to drive the pelletizing knife 6 to perform a reciprocating lifting pelletizing action, a pair of telescopic rods 7 are fixedly connected to the top of the pelletizing knife 6, and one end of the telescopic rod 7 facing away from the pelletizing knife 6 is fixedly connected to the inner bottom position of the fixed suspension 3, the telescopic rod 7 can achieve telescopicity by using a double-tube sleeve structure, so that a linear guiding effect can be provided for the pelletizing action of the pelletizing knife 6, A rotation drive unit 5 for driving the shaft 42 to rotate is provided on the fixed suspension 3, and a cooling structure 8 is provided on the fixed suspension 3. The cooling structure 8 includes a speed-increasing gearbox 81 and a fan blade 82 fixedly connected to the output shaft end of the speed-increasing gearbox 81. The input shaft end of the speed-increasing gearbox 81 is fixedly connected to the end of one of the shafts 42, and the fan blade 82 is located directly above the conveyor belt 2. In the present application, the speed-increasing gearbox 81 is fixedly installed on the fixed suspension 3. When the shaft 42 is controlled and driven by the rotation drive unit 5, the speed-increasing gearbox 81 can output high-speed power at this time. The high-speed rotating fan blade 82 can give the extruded polymer material an air cooling effect, and by reducing the heat of the extruded raw materials, the pelletizing quality of the pelletizing knife 6 can be improved. The bottom of the machine frame 1 is rotatably connected to a vibrating bucket 9, and a reciprocating swing arm structure 11 is provided on the vibrating bucket 9 and the rotation drive unit 5.

[0023] The crank assembly comprises a crank shaft 43 , a rotating sleeve 44 rotatably connected to the crank shaft 43 , and a first connecting rod 45 hinged on the rotating sleeve 44 . The pelletizer 6 is hinged on one end of the first connecting rod 45 facing away from the rotating sleeve 44 .

[0024] Specifically, when the rotary drive unit 5 drives the shaft 42 to rotate, the crank shaft 43 can rotate around the axis of the shaft 42, so that the crank shaft 43 can reciprocate and pull the pelletizer 6 to move through the rotating sleeve 44 and the first connecting rod 45, and the telescopic rod 7 is used to provide a linear guide for the pelletizer 6, so that the pelletizer 6 can continuously pelletize the extruded polymer material transmitted on the conveyor belt 2.

[0025] The rotary drive unit 5 includes a rotary motor 51, a first bevel gear 52 fixedly connected to the power output end of the rotary motor 51, and a second bevel gear 53 meshingly connected to the first bevel gear 52. The second bevel gear 53 is coaxially fixed to one end of one of the shafts 42. By starting the rotary motor 51, the rotation of the first bevel gear 52 can mesh with the transmission to rotate the second bevel gear 53, and the shaft 42 can rotate on the rotating seat 41 to provide rotational power for the crank assembly.

[0026] A pair of hinged rods 12 are rotatably connected to the vibration bucket 9 and the machine frame 1. In the present application, the vibration bucket 9 is located below the end of the conveyor belt 2. The setting of the hinged rods 12 can provide rotational support for the vibration bucket 9 based on the bottom of one end of the machine frame 1.

[0027] A support rod 10 is fixedly connected to one of the rotating seats 41, and the reciprocating swing arm structure 11 includes a rotating column 111 rotatably connected to the support rod 10, a third bevel gear 112 fixedly connected to one end of the rotating column 111, an eccentric disk 113 fixedly connected to the end side of the third bevel gear 112, and a swing arm rod 114 eccentrically rotatably connected to the end face of the eccentric disk 113, and one end of the swing arm rod 114 can be eccentrically rotated by a rotating shaft and set on the end side of the eccentric disk 113.

[0028] The third bevel gear 112 is meshedly connected to the first bevel gear 52 , and one end of the swing arm 114 facing away from the eccentric disk 113 is hinged to the inner side of the vibration bucket 9 .

[0029] Specifically, in the process of the first bevel gear 52 meshing and transmitting the second bevel gear 53, the first bevel gear 52 can synchronously drive the third bevel gear 112 to mesh and rotate, and the rotation of the eccentric disk 113 can drive the eccentric traction action of the swing arm rod 114, so that the vibrating bucket 9 can quickly reciprocate around the connection of the hinge rod 12 with the rotation support provided by the hinge rod 12. When the vibrating bucket 9 is in high-frequency rotation, the pelletized materials falling into the vibrating bucket 9 through the conveyor belt 2 can achieve the vibration feeding effect, which can further avoid the technical problem of adhesion of the polymer raw materials after pelletizing.

Claims

1. A cooling and pelletizing device, comprising a machine frame (1), a conveyor belt (2) being arranged on the inner side of the machine frame (1), and a fixed suspension (3) being fixedly mounted on the machine frame (1), characterized in that: The fixed suspension (3) is provided with a crank transmission structure (4), the crank transmission structure (4) comprising a pair of rotating seats (41) fixedly connected to the inner bottom of the fixed suspension (3), a shaft (42) rotatably connected to each rotating seat (41), and a crank assembly arranged on the pair of shafts (42), the crank assembly is provided with a pelletizer (6), the top of the pelletizer (6) is fixedly connected to a pair of telescopic rods (7), and one end of the telescopic rod (7) facing away from the pelletizer (6) is fixedly connected to the inner bottom of the fixed suspension (3), and the fixed suspension (3) is provided with a cylinder for driving the pelletizer (6). The fixed suspension (3) is provided with a cooling structure (8), the cooling structure (8) comprising a speed-increasing gearbox (81) and a fan blade (82) fixedly connected to the output shaft end of the speed-increasing gearbox (81), the input shaft end of the speed-increasing gearbox (81) is fixedly connected to the end of one of the shafts (42), the fan blade (82) is located directly above the conveyor belt (2), the bottom of the machine frame (1) is rotatably connected to a vibration bucket (9), and a reciprocating swing arm structure (11) is provided on the vibration bucket (9) and the rotational driving unit (5).

2. A cooling and pelletizing device according to claim 1, characterized in that: The crank assembly comprises a crank shaft (43), a rotating sleeve (44) rotatably connected to the crank shaft (43), and a first connecting rod (45) hinged on the rotating sleeve (44); the pelletizing knife (6) is hinged on one end of the first connecting rod (45) facing away from the rotating sleeve (44).

3. A cooling and pelletizing device according to claim 1, characterized in that: The rotary drive unit (5) comprises a rotary motor (51), a first bevel gear (52) fixedly connected to a power output end of the rotary motor (51), and a second bevel gear (53) meshingly connected to the first bevel gear (52), wherein the second bevel gear (53) is coaxially fixed to one end of one of the shafts (42).

4. A cooling and pelletizing device according to claim 1, characterized in that: The vibrating bucket (9) and the machine frame (1) are rotatably connected with a pair of hinged rods (12).

5. A cooling and pelletizing device according to claim 3, characterized in that: A support rod (10) is fixedly connected to one of the rotating seats (41), and the reciprocating swing arm structure (11) comprises a rotating column (111) rotatably connected to the support rod (10), a third bevel gear (112) fixedly connected to one end of the rotating column (111), an eccentric disk (113) fixedly connected to the end side of the third bevel gear (112), and a swing arm rod (114) eccentrically rotatably connected to the end surface of the eccentric disk (113).

6. A cooling and pelletizing device according to claim 5, characterized in that: The third bevel gear (112) is meshedly connected to the first bevel gear (52), and one end of the swing arm (114) facing away from the eccentric disc (113) is hinged to the inner side of the vibrating bucket (9).

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