CN212097456U

CN212097456U - Traction device of plastic extruder

Info

Publication number: CN212097456U
Application number: CN202020706113.4U
Authority: CN
Inventors: 袁致伟; 周承宝; 吉诚启; 尤恒花
Original assignee: Spg Machinery Shandong Co ltd
Current assignee: Spg Machinery Shandong Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-08
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a draw gear of plastics extruder, including design mould, stoving case, traction lever and power component, the design mould is including the last box and lower box that are independent of each other, the bottom surface of going up the box all is provided with a plurality of tubiform grooves with the top surface of lower box, all be provided with spray assembly on going up box and the lower box, spray assembly includes mount pad, input tube, shower and a plurality of shower nozzle, the shower nozzle is the distribution of rectangular array, all be provided with respiratory hole and outlet on going up box and the lower box, it passes through the connecting plate with the lower box and is connected to go up the box, the connecting plate is connected with the connection boss that sets up at last box and lower box both ends. The device cools the workpiece drawn out of the drying box in a spraying mode, so that the cooling efficiency is improved, and the utilization rate of a cooling medium is also improved; meanwhile, the device has the characteristics of good sealing effect, convenience in production and manufacturing and long service life.

Description

Traction device of plastic extruder

Technical Field

The utility model belongs to the technical field of plastic product production facility, especially, relate to a draw gear of plastics extruder.

Background

Plastic extrusion molding is a plastic product having a certain geometry and size, which is produced by heating a plastic material to a molten state, passing the plastic material through a die having a certain shape under pressure to form a continuous body having a cross section similar to the shape of the die, and then cooling the continuous body. When the existing plastic extruder is used for processing a profile, the formed pipe is separated from a die mainly by the traction of a traction machine. Because the shaping needs to be cooled by water during shaping, the deformation is great, the section bar has certain tension change, which brings about not little trouble for the traction device, and meanwhile, the later-stage reprocessing quality can be influenced if the cooling water on the section bar is not removed in time.

In the prior art, cn201820646743.x discloses a drawing device of a plastic extruder, comprising: the forming die is internally provided with a cooling cavity, a plurality of forming tubes are arranged in the cooling cavity, and two ends of each forming tube respectively penetrate through the side wall of the forming die; the drying box is connected with the shaping mould, and an outlet of the drying box is connected with an inlet of the forming pipe; the draw bar is movably plugged in the forming tube from an outlet of the forming tube, and a rod body of the draw section is provided with a clamping groove; and the traction section of the traction rod is in transmission connection with the power assembly. The melting material of the utility model completely wraps the material pulling section of the traction rod in the cavity of the forming tube, and a series of clamping grooves are arranged on the material pulling section; the draw bar is pulled to move forward, so that the section bar is driven to move forward, and the plastic section bar arranged in the clamping groove is not easy to fall off in the material pulling process. However, the device has the problems that the cooling medium adopts a diffuse form in the shaping mould, the actual utilization rate of the cooling medium is low, the flowing effect is poor, and the cooling efficiency is low; moreover, the centering capacity of the draw bar and the end part of the forming pipe can generate deviation in the long-term use process, and the phenomenon that the end part of the draw bar extrudes the forming pipe or a forming die is easy to occur, so that the production efficiency is influenced; secondly, the assembly degree of difficulty of design mould and forming tube is higher, appears sealed poor and leads to the problem that coolant leaks outward moreover easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that above-mentioned plastic extruder's draw gear existed, provide a reasonable in design, simple structure, cooling efficiency are higher, assemble effectual, the leakproofness good and be favorable to improving production efficiency's plastic extruder's draw gear.

In order to achieve the above object, the present invention adopts the technical scheme that the traction device of the plastic extruder comprises a shaping mold, a drying box, a traction rod and a power assembly, wherein one end of the traction rod extends into the shaping mold, one end of the shaping mold is butted with one end of the drying box, the shaping mold comprises an upper box body and a lower box body which are independent of each other, a plurality of tubular grooves are arranged on the bottom surface of the upper box body and the top surface of the lower box body, spray assemblies facing the tubular grooves are arranged on the top of the upper box body and the bottom of the lower box body, each spray assembly comprises a mounting seat, an input pipe, a spray pipe and a plurality of spray heads, the input pipes are communicated with the spray pipes and are respectively arranged on the top and the bottom of the mounting seat, the spray heads are distributed in a rectangular array, and the upper box body and the lower box body are both provided with breathing holes and a water, the upper box body is connected with the lower box body through a connecting plate, the connecting plate is connected with connecting bosses arranged at two ends of the upper box body and the lower box body, the connecting plate is in a groove plate shape and surrounds the connecting bosses on the upper box body and the lower box body, and a plurality of through holes are formed in the connecting plate corresponding to the tubular grooves.

Preferably, an alloy ring is arranged on the connecting plate in each through hole.

Preferably, the shower pipe is in a shape of a Chinese character 'hui'.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides a traction device of a plastic extruder, which cools a workpiece drawn out of a drying box in a spraying mode, thereby not only improving the cooling efficiency, but also improving the utilization rate of a cooling medium; meanwhile, the shaping die adopts a structure with an upper box body and a lower box body which are relatively independent, so that a higher sealing effect can be ensured, the production process is effectively shortened, the service life is longer, the design is reasonable, the structure is simple, and the large-scale popularization is suitable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural diagram of a traction device of a plastic extruder provided by an embodiment;

FIG. 2 is a front view of a sizing die provided in an embodiment;

FIG. 3 is a side view of a sizing die provided in an embodiment;

in the above figures, 1, a shaping mold; 11. an upper box body; 12. a lower box body; 13. a tubular slot; 14. a spray assembly; 141. a mounting seat; 142. an input tube; 143. a shower pipe; 144. a spray head; 15. a breathing hole; 16. a water outlet; 17. connecting the bosses; 2. a drying box; 3. a draw bar; 4. a power assembly; 5. a connecting plate; 51. a through hole; 52. and (6) an alloy ring.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1, fig. 2 and fig. 3, the utility model provides a plastic extruder's draw gear, including design mould 1, stoving case 2, traction lever 3 and power component 4, design mould 1 is stretched into to the one end of traction lever 3, the one end of design mould 1 and the butt joint of the one end of stoving case 2, wherein, stoving case 2, traction lever 3 and power component 4 are prior art, and this embodiment no longer gives unnecessary details to its structure. The utility model discloses the focus is improved design mould 1 the cooling part of work piece promptly to make this device have higher cooling efficiency and utilization ratio.

Specifically, the shaping mold 1 provided by the utility model comprises an upper box body 11 and a lower box body 12 which are independent from each other, the bottom surface of going up box 11 and the top surface of lower box 12 all are provided with a plurality of tubiform groove 13, the top of going up box 11 and the bottom of lower box 12 are provided with spray set 14 towards tubiform groove 13, spray set 14 includes mount pad 141, input tube 142, shower 143 and a plurality of shower nozzle 144, input tube 142 communicates with shower nozzle 143 and sets up respectively at the top and the bottom of mount pad 141, shower nozzle 144 is the rectangular array and distributes, all be provided with breather 15 and outlet 16 on going up box 11 and the lower box 12, it is connected through connecting plate 5 with lower box 12 to go up box 11, connecting plate 5 is connected with the connection boss 17 that sets up at last box and lower box both ends, connecting plate 5 is the frid and surrounds connection boss 17 on last box and the lower box, the position that corresponds tubiform groove 13 on connecting plate 5 is provided with a plurality of through-holes 51. Wherein, design mould 1 adopts the structure of relatively independent last box and lower box, and tubiform groove 13 adopts the structure with last box or lower box integrated into one piece, not only can guarantee higher sealed effect, has effectively shortened production technology in addition, and the assembling process is simple. The breathing hole 15 can rationally release the steam because of the heat transfer produces, guarantees that the internal pressure of design mould 1 is in dynamic balance. More importantly, the device reasonably changes the form of spreading the cooling medium in the shaping die 1 into the spraying form by using the spraying assembly 14, effectively reduces the using amount of the cooling medium, obviously improves the recycling rate of the cooling medium, improves the cooling efficiency, and ensures that the cooling degrees of the upper surface and the lower surface of the workpiece are more uniform, thereby reasonably improving the production quality of the plastic workpiece.

Further, the utility model provides a connecting plate 5 is connected with connection boss 17, not only has higher connection stability, still plays the effect of protection design mould tip, has effectively prolonged the actual life of design mould.

Furthermore, the utility model discloses be provided with alloy circle 52 in every through-hole 51 on connecting plate 5, alloy circle 52 adopts the carbide material of high rigidity, high wearability to make, can effectively avoid the through-hole position of connecting plate to be extruded by the tip of traction lever and impaired.

In order to improve cooling medium's conveying efficiency, with the shower nozzle 144 that the rectangular array distributes, the utility model provides a shower 143's shape is back the font, can consider comprehensively that shower nozzle 144 accomplishes the water pressure and carries, has higher space utilization again, is favorable to guaranteeing cooling medium at its inside mobile effect and the even degree of pressure distribution.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A traction device of a plastic extruder comprises a shaping mold, a drying box, a traction rod and a power assembly, wherein one end of the traction rod extends into the shaping mold, one end of the shaping mold is butted with one end of the drying box, the traction device is characterized in that the shaping mold comprises an upper box body and a lower box body which are mutually independent, a plurality of tubular grooves are formed in the bottom surface of the upper box body and the top surface of the lower box body, spray assemblies facing the tubular grooves are arranged at the top of the upper box body and the bottom of the lower box body, each spray assembly comprises a mounting seat, an input pipe, a spray pipe and a plurality of spray heads, the input pipes are communicated with the spray pipes and are respectively arranged at the top and the bottom of the mounting seat, the spray heads are distributed in a rectangular array, breathing holes and water outlets are formed in the upper box body and the lower box body, the upper box body and the lower box body are connected through a connecting plate, the connecting plate is connected with connecting bosses arranged at two, the connecting plate is in a groove plate shape and surrounds the connecting bosses on the upper box body and the lower box body, and a plurality of through holes are formed in the connecting plate corresponding to the tubular grooves.

2. The pulling device for plastic extruders according to claim 1, characterized in that an alloy ring is provided on the connection plate in each through hole.

3. The traction device of a plastic extruder as claimed in claim 2, wherein the spray pipe is shaped like a Chinese character 'hui'.