Granulator for engineering plastics

Abstract

The utility model provides a granulator for engineering plastics, which relates to the field of granulators and comprises a transmission rod, a lifting plate, a guide support rod and a swing rod. The left end and the right end of the transmission rod are welded and connected with a turntable; connecting rods are hinged to the left side face and the right side face of the lifting plate, rotating discs are hinged to the bottom ends of the connecting rods, and cutters are connected to the front side face of the lifting plate through bolts. A screening motor is installed on the lower side face of the support, and a driving disc is installed on a motor shaft of the screening motor. The swing rod is rotationally connected to the upper side face of the support, and the swing rod is connected to the rear side face of the screening disc in an engaged mode. The guide supporting rod is connected with the supporting plate in a welded mode. Through the arrangement of the connecting rod, the rotating disc, the cutter, the lifting plate, the swing rod, the screening disc and the driving disc, the repeated vertical cutting work of the cutter on plastic strips and the screening and filtering work of the screening disc on plastic particles and plastic chippings are achieved, and the problems that a traditional plastic granulator cannot screen and filter the plastic chippings, and the cutting faces of the plastic particles are uneven are solved.

Description

Technical Field

[0001] The utility model belongs to the field of pelletizers, and more specifically, particularly relates to a pelletizer for engineering plastics. Background Art

[0002] Plastic is a polymer compound formed by addition polymerization or condensation polymerization. In order to facilitate the production of plastic products and the transportation and storage of plastic raw materials, it is necessary to granulate the plastic raw materials so that the plastic strips are formed into plastic particles. At present, the granulation of plastic raw materials is mostly completed by plastic pelletizers. Traditional plastic pelletizers use rollers to roll and cut plastic strips to form granular shapes. However, when cutting plastic strips, the cutter rotates around the axis of the traction roller, causing the angle of the cutter cutting the strip to change continuously, resulting in the inability to keep the cross section of the plastic particles uniform and flat. It can be seen that the plastic pelletizing quality of traditional plastic pelletizers is low. In addition, a large amount of plastic debris will be generated during the plastic strip pelletizing process. However, traditional plastic pelletizers cannot screen plastic debris and plastic particles. Plastic debris will be mixed with plastic particles and loaded into the packaging bag, which seriously affects the packaging quality of plastic particles. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a pelletizer for engineering plastics to solve the problems that traditional plastic pelletizers cannot sieve and filter plastic debris and the cross-section of plastic particles is uneven.

[0004] The utility model provides a pelletizer for engineering plastics, comprising a loading plate; the upper side surface of the loading plate is welded with a guide column, the top of the guide column is welded with a support rod, the left and right sides of the support rod are welded with a side plate, the lower side of the side plate is welded with a support plate and a bracket in sequence from front to back, the lower side of the bracket is welded with a base, a debris tray is placed on the upper side of the bracket, the left and right sides of the loading plate are welded with the side plate, the right side of the side plate is connected to a feeding motor by bolts, and a traction roller is installed on the motor shaft of the feeding motor; it also includes a fixing rod, a lifting plate, a threaded column, a guide support rod and a swing rod; the number of the support plates is two groups, the support plates are respectively welded to the left and right sides of the pad plate, the lower side of the pad plate is welded with a base, the left side of the left support plate is installed with a pelletizing motor, the motor of the pelletizing motor A driving gear is installed on the machine shaft, and the outer side surface of the driving gear is meshed with a driven gear. The right side surface of the driven gear is welded to the outer side surface of the transmission rod, and the left and right ends of the transmission rod are welded to a turntable; the left and right sides of the lifting plate are hinged with connecting rods, the bottom end of the connecting rod is hinged with a turntable, and the front side of the lifting plate is connected to a cutter by bolts; a screening motor is installed on the lower side of the bracket, and a driving disk is installed on the motor shaft of the screening motor, and a convex column is provided at an eccentric position on the upper side of the driving disk; the swing rod is rotatably connected to the upper side of the bracket, and the swing rod is meshed with the rear side of the screening disk; the guide support rod is welded to the support plate; a knob is installed on the top of the threaded column, and the threaded column is rotatably connected to the upper side of the loading plate, and the outer side surface of the threaded column is meshed with a splint; the fixing rod is welded to the side plate.

[0005] In at least some embodiments, the splint is a semi-cylindrical strip structure, and two groups of protruding plates are provided on the rear side of the splint near the left and right ends. A through hole is provided on the upper side of the right protruding plate, and the guide column is inserted into the protruding plate through hole of the splint. A threaded through hole is provided on the upper side of the left protruding plate of the splint, and the threaded column is engaged and connected in the threaded through hole of the splint.

[0006] In at least some embodiments, the outer side surface of the traction roller is provided with six groups of annular grooves, and the groove surface of each group of annular grooves is an arc surface structure.

[0007] In at least some embodiments, the sub-screening plate is of a concave structure, a rack structure is provided on the rear side of the sub-screening plate, an inclined surface structure is provided near the front end of the upper side of the sub-screening plate, the inclined surface structure is densely covered with microporous structures that penetrate from top to bottom, two groups of through holes are provided on the left and right sides of the sub-screening plate, and guide support rods are inserted into the through holes on the left and right sides of the sub-screening plate.

[0008] In at least some embodiments, the upper side surface of the swing rod is provided with a long through groove running through from top to bottom, the convex column on the upper side surface of the driving disk is embedded in the through groove of the swing rod, the front end of the swing rod is provided with a fan-shaped arc surface structure, the fan-shaped arc surface of the swing rod is provided with external teeth, and the external teeth of the swing rod are meshed and connected to the rack structure on the rear side of the screening disk.

[0009] In at least some embodiments, there are two groups of side panels, which are symmetrically distributed on the left and right sides of the loading plate. Each group of loading plates is provided with a through groove that runs through the left and right sides, and the left and right ends of the lifting plate are respectively embedded in the through grooves of the two groups of side panels.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, the pelletizing motor drives the driving gear and the driven gear to form a gear meshing transmission mechanism, so that the transmission rod drives the two sets of connecting rods hinged at the eccentric position of the turntable to swing, and the two sets of connecting rods simultaneously pull the lifting plate hinged at the top to move vertically up and down along the through-slot structure of the side plate, thereby realizing the repeated vertical cutting of the plastic strip by the cutter. Since the lifting plate drives the cutter to move vertically, the cut surface of the plastic strip is smoother and more uniform, avoiding the uneven cut surface of the plastic strip caused by the rotary cutter rotation cutting.

[0012] 2. In the utility model, the nested sliding structure of the convex column on the side of the driving disk driven by the screening motor cooperates with the fan-shaped arc surface outer tooth structure at the front end of the swing rod and the rack on the rear side of the screening disk to form an engaging transmission structure, so that the driving disk drives the swing rod to make the screening disk swing back and forth along the guide support rod, thereby realizing the screening and filtering of plastic particles and plastic debris by the screening disk.

[0013] 3. In the utility model, the threaded thread on the outer side of the threaded column and the threaded through-hole structure of the clamping plate convex plate are used to form a threaded meshing transmission mechanism, so that the clamping plate can move vertically up and down along the guide column, changing the feeding gap between the clamping plate and the traction roller, so that the traction roller can traction and convey plastic strips of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the utility model in an upward and side view.

[0016] Figure 3 It is a rear view structural schematic diagram of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above.

[0018] Figure 5It is a rear side structural schematic diagram of the utility model.

[0019] Figure 6 It is a front view structural schematic diagram of the utility model.

[0020] Figure 7 It is a schematic diagram of the cutaway structure of the utility model.

[0021] 1. Side panel; 2. Base; 3. Bracket; 4. Support rod; 5. Fixed rod; 6. Lifting plate; 7. Cutter; 8. Pad; 9. Crumb plate; 10. Screening plate; 11. Turntable; 12. Connecting rod; 13. Knob; 14. Pelletizing motor; 15. Screening motor; 16. Feeding motor; 17. Traction roller; 18. Clamp; 19. Driving gear; 20. Driven gear; 21. Transmission rod; 22. Loading plate; 23. Driving disc; 24. Threaded column; 25. Guide column; 26. Guide support rod; 27. Swing rod; 28. Support plate. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] like Figure 1-Figure 7As shown, the utility model provides a pelletizer for engineering plastics, including a loading plate 22; a guide column 25 is welded to the upper side of the loading plate 22, a support rod 4 is welded to the top of the guide column 25, a side plate 1 is welded to the left and right sides of the support rod 4, a support plate 28 and a bracket 3 are welded to the lower side of the side plate 1 in sequence from front to back, a base 2 is welded to the lower side of the bracket 3, a debris tray 9 is placed on the upper side of the bracket 3, the left and right sides of the loading plate 22 are welded to the side plate 1, a feeding motor 16 is bolted to the right side of the side plate 1, and a traction roller 17 is installed on the motor shaft of the feeding motor 16; it also includes a fixing rod 5, a lifting plate 6, a threaded column 24, a guide support rod 26 and a swing rod 27; the number of the support plates 28 is two groups, the support plates 28 are respectively welded to the left and right sides of the pad 8, the lower side of the pad 8 is welded to the base 2, the left side of the left support plate 28 is installed with a pelletizing motor 14, and the pelletizing motor 14 is installed on the left side of the left support plate A driving gear 19 is installed on the motor shaft, and the outer side of the driving gear 19 is meshed with a driven gear 20. The right side of the driven gear 20 is welded to the outer side of the transmission rod 21, and the left and right ends of the transmission rod 21 are welded to a turntable 11; the left and right sides of the lifting plate 6 are hinged with a connecting rod 12, and the bottom end of the connecting rod 12 is hinged with a turntable 11. The front side of the lifting plate 6 is connected to a cutter 7 by bolts; a sub-screening motor 15 is installed on the lower side of the bracket 3, and the sub-screening motor 15 is installed on the lower side of the bracket 3. A driving disk 23 is installed on the motor shaft of the machine 15, and a convex column is provided at an eccentric position on the upper side of the driving disk 23; a swing rod 27 is rotatably connected to the upper side of the bracket 3, and the swing rod 27 is meshed and connected to the rear side of the screening plate 10; the guide support rod 26 is welded to the support plate 28; a knob 13 is installed on the top of the threaded column 24, and the threaded column 24 is rotatably connected to the upper side of the loading plate 22, and the outer side of the threaded column 24 is meshed and connected to the clamping plate 18; the fixing rod 5 is welded to the side plate 1.

[0024] When the utility model is cutting plastic strips, firstly, six groups of plastic strips are placed on the upper side of the clamping plate 18, at which time the plastic strips and the annular groove structure of the traction roller 17 are opposite to each other up and down, and then the knob 13 is turned, and the knob 13 drives the threaded column 24 to rotate. Since the threaded structure on the outer side of the threaded column 24 is meshed with the threaded through hole of the clamping plate 18, the threaded column 24 drives the clamping plate 18 to move vertically upward along the guide column 25, and the six groups of plastic strips are clamped in the six groups of annular grooves of the traction roller 17 by the clamping plate 18, respectively. Then, the traction roller 17 is driven by the feeding motor 16 to rotate, and the traction roller 17 uses friction to transport the front end of the plastic strip to the lower side of the cutter 7. At this time, the pelletizing motor 14 drives the driving gear 19 to rotate. Since the driving gear 19 is meshed and connected with the driven gear 20, the driving gear 19 drives the driven gear 20 to rotate, and the driven gear 20 can drive the transmission rod 21 to rotate, and the transmission rod 21 drives the two groups of turntables 11 welded at the left and right ends to rotate synchronously, and the two groups of turntables 11 are pulled The two groups of connecting rods 12 flip and swing up and down repeatedly, and the two groups of connecting rods 12 simultaneously pull the hinged lifting plate 6 to reciprocate vertically up and down along the through slot of the side plate 1, and the lifting plate 6 drives the cutter 7 to quickly cut the plastic strips, and the plastic strips are cut into plastic particles. The plastic particles and cutting debris fall from the front end of the loading plate 22 onto the inclined surface of the sub-screening plate 10. At this time, the sub-screening motor 15 drives the driving plate 23 to rotate, and the convex column on the side of the driving plate 23 drives the swinging rod 27 to move left and right at the through slot of the swinging rod 27. Swinging. Since the arc-shaped external tooth structure at the front end of the swing rod 27 is meshed and connected to the rack structure on the rear side of the sub-screening plate 10, the swing rod 27 drives the sub-screening plate 10 to swing back and forth along the guide support rod 26 during the left and right swinging process, so that the plastic particles accumulated on the inclined surface of the sub-screening plate 10 can quickly slide out from the front end of the sub-screening plate 10 in the shaking state, and the plastic debris falls from the micropores of the sub-screening plate 10 into the debris plate 9 placed on the lower side of the sub-screening plate 10, completing the screening and filtering of plastic particles and plastic debris.

[0025] In the disclosed embodiment, the splint 18 is a semi-cylindrical strip structure, and two groups of convex plates are provided on the rear side of the splint 18 near the left and right ends. The upper side of the right convex plate is provided with a through hole, and the guide column 25 is inserted into the convex plate through hole of the splint 18. The upper side of the left convex plate of the splint 18 is provided with a threaded through hole, and the threaded column 24 is meshed and connected in the threaded through hole of the splint 18. The threaded column 24 drives the splint 18 to move upward or downward along the guide column 25, so that the splint 18 and the traction roller 17 can clamp and pull plastic strips with different cross-sectional diameters.

[0026] In the disclosed embodiment, six groups of annular grooves are provided on the outer side surface of the traction roller 17, and the groove surface of each group of annular grooves is an arc surface structure. The plastic strip is embedded in the annular groove of the traction roller 17 to ensure that the plastic strip is stably pulled along the annular groove of the traction roller 17 and prevent the plastic strip from being displaced during the traction and movement process.

[0027] In the disclosed embodiment, the sub-screening plate 10 is a concave structure, and a rack structure is provided on the rear side of the sub-screening plate 10. An inclined surface structure is provided near the front end of the upper side of the sub-screening plate 10. The inclined surface structure is densely covered with microporous structures that penetrate from top to bottom. The micropores of the sub-screening plate 10 are used to make plastic debris fall into the debris plate 9 through the micropores, and the plastic particles slide out from the front end of the sub-screening plate 10 through the inclined surface. The cut plastic particles are filtered and separated from the plastic debris. Two groups of through holes are provided on the left and right sides of the sub-screening plate 10, and the guide support rods 26 are inserted into the through holes on the left and right sides of the sub-screening plate 10.

[0028] In the embodiment of the present disclosure, the upper side surface of the swing rod 27 is provided with a long through groove which runs through from top to bottom, and the convex column on the upper side surface of the driving disk 23 is embedded in the through groove of the swing rod 27. During the sliding process of the convex column of the driving disk 23 in the long through groove of the swing rod 27, the swing rod 27 is pushed to swing left and right. The front end of the swing rod 27 is provided with a fan-shaped arc surface structure, and the fan-shaped arc surface of the swing rod 27 is provided with external teeth. The external teeth of the swing rod 27 are meshed and connected to the rack structure on the rear side of the sub-screening disk 10, so that the swing rod 27 drives the sub-screening disk 10 to reciprocate left and right along the guide support rod 26 during the swinging process, forming the sub-screening disk 10 shaking left and right, which not only facilitates the plastic debris to quickly fall into the micropores of the sub-screening disk 10 to accelerate the sub-screening and filtration speed, but also facilitates the plastic particles to quickly slide along the inclined surface, preventing the plastic particles from being trapped on the sub-screening disk 10.

[0029] In the disclosed embodiment, there are two groups of side panels 1, which are symmetrically distributed on the left and right sides of the loading plate 22. Each group of loading plates 22 is provided with a through groove that passes through the left and right sides. The left and right ends of the lifting plate 6 are respectively embedded in the through grooves of the two groups of side panels 1, so that the lifting plate 6 can move vertically along the through grooves of the side panels 1, so that the cutter 7 can cut the plastic strip vertically and stably.

[0030] The installation, connection or setting methods of all the above components are common mechanical methods, such as welding, threaded connection, screw connection, etc., and the specific structures, models and coefficient indicators of all its components are its own technology, and can be implemented as long as it can achieve its beneficial effects. The pelletizing motor 14, screening motor 15, and feeding motor 16 used above are all common components on the market. When they are purchased and used, they can be used by simply connecting them according to the instruction manual purchased together, so they will not be repeated here.

[0031] The technical solution of the present invention is not limited to the scope of the embodiments of the present invention, and the technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A pelletizer for engineering plastics, comprising a loading plate; the upper side of the loading plate is welded with a guide column, the top of the guide column is welded with a support rod, the left and right sides of the support rod are welded with a side plate, the lower side of the side plate is welded with a support plate and a bracket in sequence from front to back, the lower side of the bracket is welded with a base, a debris tray is placed on the upper side of the bracket, the left and right sides of the loading plate are welded with the side plate, the right side of the side plate is bolted with a feeding motor, and a traction roller is installed on the motor shaft of the feeding motor; characterized in that: It also includes a fixed rod, a lifting plate, a threaded column, a guide support rod and a swing rod; the number of the support plates is two groups, the support plates are respectively welded to the left and right sides of the pad, the lower side of the pad is welded to the base, the left side of the left support plate is installed with a pelletizing motor, the motor shaft of the pelletizing motor is installed with a driving gear, the outer side of the driving gear is meshed with a driven gear, the right side of the driven gear is welded to the outer side of the transmission rod, and the left and right ends of the transmission rod are welded to a turntable; the left and right sides of the lifting plate are both hinged with connecting rods, connecting A turntable is hinged at the bottom end of the rod, and a cutter is connected to the front side of the lifting plate by bolts; a screening motor is installed on the lower side of the bracket, a driving disk is installed on the motor shaft of the screening motor, and a convex column is provided at an eccentric position on the upper side of the driving disk; the swing rod is rotatably connected to the upper side of the bracket, and the swing rod is meshedly connected to the rear side of the screening disk; the guide support rod is welded to the support plate; a knob is installed on the top of the threaded column, and the threaded column is rotatably connected to the upper side of the loading plate, and the outer side of the threaded column is meshedly connected to a splint; the fixed rod is welded to the side plate.

2. A pelletizer for engineering plastics as claimed in claim 1, characterized in that: The splint is a semi-cylindrical strip structure, and two groups of convex plates are provided on the rear side of the splint near the left and right ends. A through hole is provided on the upper side of the right convex plate, and the guide column is inserted into the convex plate through hole of the splint. A threaded through hole is provided on the upper side of the left convex plate of the splint, and the threaded column is engaged and connected in the threaded through hole of the splint.

3. A pelletizer for engineering plastics as claimed in claim 1, characterized in that: The outer side surface of the traction roller is provided with six groups of annular grooves, and the groove surface of each group of annular grooves is an arc surface structure.

4. A pelletizer for engineering plastics as claimed in claim 1, characterized in that: The sub-screening plate is of a concave structure, with a rack structure on the rear side of the sub-screening plate, and an inclined surface structure near the front end of the upper side of the sub-screening plate. The inclined surface structure is densely covered with microporous structures that penetrate from top to bottom. Two groups of through holes are provided on the left and right sides of the sub-screening plate, and guide support rods are inserted into the through holes on the left and right sides of the sub-screening plate.

5. A pelletizer for engineering plastics as claimed in claim 1, characterized in that: The upper side of the swing rod is provided with a long through groove running through from top to bottom, the convex column on the upper side of the driving disk is embedded in the through groove of the swing rod, the front end of the swing rod is provided with a fan-shaped arc surface structure, the fan-shaped arc surface of the swing rod is provided with external teeth, and the external teeth of the swing rod are meshed and connected with the rack structure on the rear side of the sub-screening disk.

6. A pelletizer for engineering plastics as claimed in claim 1, characterized in that: There are two groups of side panels, which are symmetrically distributed on the left and right sides of the loading plate. Each group of loading plates is provided with a through slot that runs through left and right, and the left and right ends of the lifting plate are respectively embedded in the through slots of the two groups of side panels.

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