CN209775495U

CN209775495U - Low-temperature cracking bubble extrusion mechanism

Info

Publication number: CN209775495U
Application number: CN201920413909.8U
Authority: CN
Inventors: 邱国仙; 黄伟福
Original assignee: Changzhou Vocational Institute of Engineering
Current assignee: Changzhou Vocational Institute of Engineering
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-12-13
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses a low temperature splits bubble extrusion mechanism belongs to the extrusion device field. The utility model discloses a low temperature crack bubble extrusion mechanism, establish the screw barrel outside the screw rod including screw rod and cover, the screw barrel on establish the heater block, the screw rod include the linkage segment, be used for the feeding compression section of extrusion and propelling movement material, be used for shearing the broken section of smashing the material and be used for carrying out the grinding section that grinds to the material, linkage segment, feeding compression section, broken section and grinding section set gradually along extruding direction, the material moves and finally grinds the back output through grinding section in the clearance between screw rod and screw barrel under the screw rod effect. The utility model discloses an extrusion mechanism has realized that low temperature plastify is extruded, and is energy-concerving and environment-protective, and expanded material recycle rate is high, and this extrusion mechanism uses the reliability high, extrudes plastify effectually.

Description

Low-temperature cracking bubble extrusion mechanism

Technical Field

The utility model relates to a material extruding means, more specifically say, relate to a low temperature crack bubble extruding means.

Background

Foaming materials such as rubber, plastics, rubber and plastic communities can produce a large amount of waste materials, the waste material treatment is always a difficult problem, if the waste materials are directly thrown away, a large amount of waste can be caused, the waste materials are difficult to degrade by themselves, and the pollution is extremely large, so that the waste materials are treated and recycled at present. Because the foaming material can form the insulation construction, outside temperature is difficult to permeate into it inside, therefore at present when handling the waste material of foaming material, often need earlier smash it through the extrusion mechanism who comprises parts such as screw rod earlier, then extrude it through extrusion mechanism, however, current extrusion mechanism often the structure is very simple, and the function is comparatively single, can only smash and extrude, and, when using current extrusion mechanism to smash the waste material, often crushing effect is not good, and the granule that smashes out is still great, outside temperature still can not permeate the inside of waste material granule, want to make outside temperature permeate waste material granule inside so that the waste material granule plasticizes, just must adopt the high temperature of 350 degrees or so to heat. However, because a high-temperature treatment mode is adopted, a large amount of smoke is generated in the waste treatment process, the environment is greatly polluted, the high-temperature treatment destroys the performance of the material, the quality of the treated material is only slightly better than that of the filler, and the treated material cannot be used in large amount, so that the cost of waste treatment is very high, and the productivity is low.

Disclosure of Invention

technical problem to be solved by the utility model

The utility model aims to overcome current extruding means crushing effect not good, the function singleness not enough, provide a low temperature crack bubble extruding means, this extruding means is provided with grinds the section, can the required temperature of greatly reduced expanded material plastify, has avoided high temperature treatment, has realized that low temperature plastify is extruded, and is energy-concerving and environment-protective, and expanded material's active ingredient can not destroyed, and expanded material recycle rate is high, and simultaneously, this extruding means uses the reliability high, extrudes plastify effectually.

Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

The utility model discloses a low temperature crack bubble extrusion mechanism, establish the screw barrel outside the screw rod including screw rod and cover, the screw barrel on establish the heater block, the screw rod include the linkage segment, be used for the feeding compression section of extrusion and propelling movement material, be used for shearing the broken section of smashing the material and be used for carrying out the grinding section that grinds to the material, linkage segment, feeding compression section, broken section and grinding section set gradually along extruding direction, the material moves and finally grinds the back output through grinding section in the clearance between screw rod and screw barrel under the screw rod effect.

Furthermore, the grinding section comprises a backflow grinding hole breaking section for performing primary grinding on the materials and enabling the materials to flow back, and a fine grinding section for performing fine grinding on the materials, wherein the backflow grinding hole breaking section is located at a position close to one side of the breaking section, and the fine grinding section is located at the tail end of the screw rod.

Furthermore, a guiding pushing section is arranged between the backflow grinding hole breaking section and the fine grinding section and used for pushing the materials subjected to primary grinding to the fine grinding section.

Furthermore, the screw is a reducing screw.

Furthermore, the diameter of the screw is gradually increased along the extrusion direction, and the distance between the fine grinding section and the inner side wall of the screw cylinder is smaller than the distance between the backflow grinding hole-breaking section and the inner side wall of the screw cylinder.

Furthermore, the feeding compression section is provided with a spiral protrusion, the backflow grinding hole breaking section is provided with a spiral groove, and the spiral protrusion and the spiral groove are opposite in rotation direction.

Furthermore, the fine grinding section is composed of a grinding sleeve detachably connected to the screw rod, and the grinding sleeve is also provided with a spiral groove.

Furthermore, the spiral direction of the spiral groove on the grinding sleeve is the same as that of the spiral groove on the backflow grinding hole-breaking section.

Furthermore, a sealing section is arranged between the connecting section and the feeding compression section.

furthermore, the maximum end diameter range of the screw is 150 ~ 300 mm.

Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) The utility model discloses a low temperature crack bubble extrusion mechanism, this extrusion mechanism includes that screw rod and cover establish at the outside barrel of screw rod, be equipped with the heater block on the barrel, and simultaneously, the screw rod includes the linkage segment, material compression section, broken section and grinding section, the heater block can heat the material, make the material plastify, the screw rod sets up grinding section and can make the screw rod further grind the material after the breakage, make the material become more tiny granule, thereby inside the heat that makes the heater block give out can permeate the material better, can avoid a class of material of expanded material to receive self insulation construction's influence, can the required temperature of this class of material plastify of greatly reduced.

(2) the utility model discloses a low temperature crack bubble extruding means, this extruding means's grinding section is including the return flow grinding broken hole section and the lapping section that is used for carrying out the meticulous grinding to the material, the broken hole section of return flow grinding can carry out the preliminary grinding to the material to make the material backward flow, can make the better mixing of material and make the material obtain further shearing smash, the lapping section can be to the material through preliminary grinding regrinding, make the material become powdered, can reach better grinding effect.

(3) The utility model discloses a low temperature crack bubble extruding means, this extruding means's backward flow grinds and still is equipped with direction propelling movement section between broken hole section and the lapping section, and direction propelling movement section can be with the material propelling movement to the lapping section better through preliminary grinding, makes the material more smoothly from the broken hole section of backward flow grinding to the lapping section.

(4) The utility model discloses a low temperature crack bubble extruding means, this extruding means's screw rod is the reducing screw rod, and the screw rod diameter is along extruding the direction crescent, forms by big-to-little clearance between screw rod and the spiral shell section of thick bamboo for extruding means different positions department has produced different compression ratios, is favorable to the feeding, has improved shearing, plastify, mixing effect, and the material distributes evenly, can make the material grinding effect better, can not influence the speed that the feeding compression section material advanced simultaneously.

(5) The utility model discloses a low temperature crack bubble extruding means is equipped with the grinding cover on this extruding means's the lapping section, grinds the cover and can dismantle with the screw rod and be connected, can dismantle and connect the maintenance of being convenient for and change and grind the cover, makes the lapping section can remain better grinding effect throughout, is favorable to guaranteeing whole extruding means's use reliability.

(6) The utility model discloses a low temperature crack bubble extruding means still is equipped with the seal segment between this extruding means's linkage segment and the feeding compression section, and the seal segment can realize the sealing of material, prevents that the material from flowing or scattering to the linkage segment and on other peripheral parts, has avoided the waste of material and can avoid producing the damage to peripheral parts, can ensure that the material is along extruding the direction forward motion.

Drawings

fig. 1 is a schematic view of the overall structure of a low-temperature cracked foam extrusion mechanism of the present invention;

FIG. 2 is a schematic view of the overall structure of the screw rod of the present invention;

Fig. 3 is the overall structure schematic diagram of the screw rod after the grinding sleeve is removed.

The reference numerals in the schematic drawings illustrate:

1. A screw cylinder; 2. a screw; 21. a connecting section; 22. a sealing section; 23. a feed compression section; 24. a crushing section; 25. refluxing and grinding the hole-breaking section; 26. a guiding pushing section; 27. a fine grinding section; 28. a helical groove; 29. a spiral protrusion; 3. a heating component.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Examples

With reference to fig. 1 to 3, the low-temperature crack bubble extrusion mechanism of the present embodiment includes a screw rod 2 and a barrel 1 sleeved outside the screw rod 2, a heating component 3 is disposed on the barrel 1, the screw rod 2 includes a connecting section 21, a feeding compression section 23 for extruding and pushing a material, a crushing section 24 for shearing and crushing the material, and a grinding section for grinding the material, the connecting section 21, the feeding compression section 23, the crushing section 24, and the grinding section are sequentially disposed along an extrusion direction, and the material moves in a gap between the screw rod 2 and the barrel 1 under the action of the screw rod 2 and is finally output after being ground by the grinding section. In the waste foamed material, since gas exists inside the foamed material and bubbles exist inside the material, it is necessary to crush the bubbles inside the material to discharge the gas for plasticizing. When the waste foaming material is plasticized by the extruding mechanism, the screw barrel 1 is preheated by the heating part 3 to ensure that the screw barrel 1 reaches a certain temperature, then the screw 2 is operated, the screw 2 pushes the material (waste foaming material) to move forward, when the material passes through the crushing section 24 of the screw 2, the long strip-shaped or block-shaped materials are cut into particles or small blocks, the cut materials move to the grinding section for grinding, the grinding section can enable the screw rod 2 to further grind the crushed materials, the materials are enabled to be finer particles or powder, because the material granule is comparatively tiny even directly becomes powdered, therefore the heat that makes heating part 3 give out can permeate the material inside better, can avoid a class of material of expanded material to receive self insulation construction's influence, can the required temperature of this class of material plastify of greatly reduced. When the extrusion mechanism of the embodiment is used, the screw barrel 1 is preheated to about 200 ℃ in advance, and then the cracking foam plasticization of the material is carried out within the temperature range of 165-190 ℃, while the extrusion mechanism in the prior art needs high temperature of about 350 ℃, so that the temperature required by material plasticization is greatly reduced compared with the prior art. The extrusion mechanism of this embodiment can realize that the low temperature plastify is extruded, has avoided high temperature treatment, and the active ingredient in the material of foaming material class one can not destroyed by high temperature, and its active ingredient can be kept, and material recycle is rateed highly, and simultaneously, low temperature treatment can not produce waste gas, can not the polluted environment to the energy that provides the required consumption of low temperature is few, and is energy-concerving and environment-protective. The waste materials are processed into recycled materials, and the recycled materials are not damaged by high temperature, so that the processed materials can be used as new materials without influencing the performance of products, and the problems of difficult waste material processing, pollution and low waste material recycling rate in the traditional foaming industry are solved.

Further, the grinding section of the present embodiment includes a back-flow grinding hole-breaking section 25 for primarily grinding the material and causing the material to flow back, and a fine grinding section 27 for finely grinding the material, the back-flow grinding hole-breaking section 25 being located at a position close to one side of the crushing section 24, and the fine grinding section 27 being located at the end of the screw. After passing through the crushing section 24, the material moves to the backflow grinding hole-breaking section 25 for primary grinding, and then moves to the fine grinding section 27 for further fine grinding. Specifically, as a preferable scheme, the feeding compression section 23 of this embodiment is provided with a spiral protrusion 29, and the return grinding hole-breaking section 25 is provided with a spiral groove 28, where the spiral protrusion 29 and the spiral groove 28 rotate in opposite directions, and more preferably, the spiral protrusion 29 of this embodiment is a left-handed protrusion, and the spiral groove 28 is a right-handed spiral groove 5 mm wide and 2 mm deep. The spiral protrusion 29 of the feeding compression section 23 pushes the material to move forward when the screw 2 rotates, and the spiral groove 28 of the backflow grinding hole-breaking section 25 and the spiral protrusion 29 rotate in opposite directions, so that the backflow grinding hole-breaking section 25 can drive the material to flow back, and the material flows back along the spiral groove 28. The backflow grinding hole breaking section 25 can preliminarily grind the materials, the materials are made to flow back, the materials can be mixed better, the materials are further sheared and crushed, and the fine grinding section 27 can regrind the materials subjected to preliminary grinding, so that a better grinding effect can be achieved.

in this embodiment, the screw 2 is a different-diameter screw, the gaps between different sections of the screw 2 and the screw barrel 1 are different, the extrusion forces of the different sections of the screw 2 on the materials are different, the distances between the backflow grinding hole section 25 and the inner side wall of the screw barrel 1 and the distances between the finishing grinding section 27 and the inner side wall of the screw barrel 1 are different, and different compression ratios are generated at different positions of the extrusion mechanism.

More preferably, the fine grinding section 27 of the present embodiment is composed of a grinding sleeve detachably connected to the screw rod 2, the grinding sleeve of the present embodiment is sleeved on the screw rod 2 and assembled on the screw rod 2 by using a pin connection, the grinding sleeve is also provided with a spiral groove 28, and the spiral direction of the spiral groove 28 on the grinding sleeve is preferably the same as the spiral direction of the spiral groove 28 on the backflow grinding broken hole section 25. The detachable connection facilitates maintenance and replacement of the grinding sleeve, so that the fine grinding section 27 can always keep a good grinding effect, and the use reliability of the whole extrusion mechanism is guaranteed. Preferably, the grinding sleeve of the embodiment is a taper sleeve with the diameter increasing from 290 to 294mm, so that the compression ratio can be improved.

Furthermore, still be equipped with direction propelling movement section 26 between the broken hole section 25 of backward flow grinding and the lapping section 27 of this embodiment for with the material propelling movement that passes through preliminary grinding to lapping section 27, direction propelling movement section 26 also comprises bellied screw thread, the screw thread revolve to with the spiral direction of the broken hole section 25 of backward flow grinding opposite, direction propelling movement section 26 can be with the material that passes through preliminary grinding propelling movement to lapping section 27 better, make the material more smoothly from the broken hole section 25 of backward flow grinding to lapping section 27, the material advances convenient and reliable. The grinding sleeve of the lapping section 27 can also enable the material to flow back when the material is subjected to lapping, but due to the action of the guide pushing section 26, the material located at the lapping section 27 can only move back and forth repeatedly in the lapping section 27, the lapping is repeated, and after the material is ground to a certain degree, the material can be extruded out of the extruding mechanism under the pushing of the material at the rear. In addition, still be equipped with seal segment 22 between the linkage segment 21 of the screw rod 2 of this embodiment and the feeding compression section 23, seal segment 22 can realize the sealed of material, prevents the material backward flow, can prevent that the material from flowing or scattering to linkage segment 21 and other peripheral parts on, has avoided the waste of material and can avoid producing the damage to peripheral parts, can ensure that the material is along extruding the direction forward motion.

In addition, as a preferred scheme, the bottom diameter of the screw 2 at the feeding compression section 23 of the embodiment is increased from 200mm to 260mm, and the compression ratio at the feeding compression section 23 is continuously enhanced, so that the material is pushed to move forward. Meanwhile, the crushing section 214 of the present embodiment is composed of a thread with a lead of 160mm for the left-hand 3 head and a thread with a lead of 248mm for the right-hand 4 head, which form a rhombic crushing blade for crushing the material. In addition, the heating member 3 is a conventional heating device, and the heating member 3 is very common in the extrusion mechanism, and the heating member 3 is not described in detail herein.

When the extruding mechanism of the embodiment is used, materials firstly move forward under the action of the feeding compression section 23 to the crushing section 24 for shearing and crushing, then move to the backflow grinding broken hole section 25 for primary grinding, so that cracking bubbles are realized, the materials subjected to primary grinding firstly flow back under the action of the backflow grinding broken hole section 25 for further shearing and primary grinding, the materials subjected to further shearing and grinding move to the fine grinding section 27 for fine grinding under the pushing of subsequent materials, and complete cracking bubble plasticization is realized.

the utility model discloses a low temperature splits bubble extruding means, this extruding means can the required temperature of greatly reduced expanded material plastify, has avoided high temperature treatment, has realized that low temperature plastify is extruded, and is energy-concerving and environment-protective, and expanded material recycle rate is high, and simultaneously, this extruding means uses the reliability high, extrudes plastify effectually.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.

Claims

1. The utility model provides a low temperature splits bubble extrusion mechanism which characterized in that: including screw rod (2) and cover establish screw barrel (1) outside screw rod (2), screw barrel (1) on establish heating part (3), screw rod (2) including linkage segment (21), be used for feeding compression section (23) of extrusion and propelling movement material, be used for shearing crushing section (24) of smashing the material and be used for carrying out the grinding section that grinds the material, linkage segment (21), feeding compression section (23), crushing section (24) and grinding section set gradually along extruding the direction, the material moves and finally grinds the back output through grinding section in the clearance between screw rod (2) and screw barrel (1) under screw rod (2) effect.

2. The cryogenic bulb crack extrusion mechanism of claim 1, wherein: the grinding section comprises a backflow grinding hole breaking section (25) used for primarily grinding the materials and enabling the materials to flow back and a fine grinding section (27) used for finely grinding the materials, the backflow grinding hole breaking section (25) is located at a position close to one side of the crushing section (24), and the fine grinding section (27) is located at the tail end of the screw (2).

3. The cryogenic bulb breaking extrusion mechanism of claim 2, wherein: and a guide pushing section (26) is arranged between the backflow grinding hole breaking section (25) and the fine grinding section (27) and used for pushing the materials subjected to primary grinding to the fine grinding section (27).

4. A low temperature crack bubble extrusion mechanism according to claim 2 or 3, wherein: the screw (2) is a reducing screw.

5. The cryogenic bulb crack extrusion mechanism of claim 4, wherein: the diameter of the screw (2) is gradually increased along the extrusion direction, and the distance between the fine grinding section (27) and the inner side wall of the screw cylinder (1) is smaller than the distance between the backflow grinding hole-breaking section (25) and the inner side wall of the screw cylinder (1).

6. The cryogenic bulb breaking extrusion mechanism of claim 2, wherein: the feeding compression section (23) is provided with a spiral protrusion (29), the backflow grinding hole breaking section (25) is provided with a spiral groove (28), and the spiral protrusion (29) and the spiral groove (28) are opposite in rotation direction.

7. the cryogenic bulb breaking extrusion mechanism of claim 6, wherein: the fine grinding section (27) is composed of a grinding sleeve detachably connected to the screw rod (2), and a spiral groove (28) is also arranged on the grinding sleeve.

8. The cryogenic bulb breaking extrusion mechanism of claim 7, wherein: the spiral direction of the spiral groove (28) on the grinding sleeve is the same as the spiral direction of the spiral groove (28) on the backflow grinding hole-breaking section (25).

9. The cryogenic bulb crack extrusion mechanism of claim 1, wherein: and a sealing section (22) is also arranged between the connecting section (21) and the feeding compression section (23).

10. the low ~ temperature cracked foam extrusion mechanism as claimed in claim 4, wherein the maximum end diameter of the screw (2) is in the range of 150 ~ 300 mm.