CN114228200A - Efficient straw extrusion crystallization system and method - Google Patents

Abstract

A high efficiency straw extrusion crystallization system comprising: the extruder is used for extruding the suction pipe piece, and the high-efficiency suction pipe extrusion crystallization system further comprises: the crystallization water tank is used for storing crystallization water, the continuously output suction pipe piece penetrates through the crystallization water tank after the extrusion molding of the extruder, and the water stored in the crystallization water tank is used for carrying out constant-temperature water crystallization treatment on the continuously output suction pipe piece; a crystallization radial limiting component which is provided with a radial limiting channel for the axial penetration of the suction pipe part, and the crystallization radial limiting component is positioned in the water of the crystallization water tank; and the internal heating crystallization mechanism is used for blowing out constant-temperature hot air to heat and crystallize the inner wall of the suction pipe. This crystallization system is extruded to high-efficient straw improves crystallization efficiency and has guaranteed the one-tenth circularity of straw spare, reduces the raw materials cost.

Description

Efficient straw extrusion crystallization system and method

Technical Field

The invention belongs to the technical field of straw manufacturing, and particularly relates to a high-efficiency straw extrusion crystallization system and a method.

Background

The suction pipe is a cylindrical hollow plastic product, the main function of the suction pipe is to drink the beverage in the cup, and the suction pipe sucks liquid by using the atmospheric pressure principle.

In general, a conventional straw is manufactured as a long cylindrical member by mixing various raw materials such as thermoplastic plastics or thermosetting materials, for example, PLA, PBS, and inorganic fillers, using a plastic molding die, and after extrusion molding of the straw, immersion cooling crystallization is generally performed by water. In order to ensure the crystallization quality and the roundness of the straw, the straw factory generally selects the proportion of the PBS component in the raw materials for improving the roundness, but the cost of the PBS raw materials is higher, and the production cost of the straw is increased.

For example, chinese patent document discloses an extrusion device [202020538566.0] for acidophilus milk straw, including the bottom plate, bottom plate top outer wall one side is installed the extruder through the bolt, and bottom plate top outer wall opposite side is installed the support through the bolt, the basin is installed through the bolt to support top outer wall, and has a capping through hinge joint on one side of the basin, bottom plate top outer wall is installed ozone generator through the bolt, ozone aeration pipe is installed through the bolt to basin bottom inner wall, and ozone aeration pipe is connected through safe sight with ozone generator, the dry frame is installed through the bolt to basin play pipe end, capping top outer wall is inlayed through the bolt and is installed negative-pressure air fan, and capping top inner wall one end is installed the filter basket through the bolt. The device is through letting in ozone thereby disinfect to the straw inner and outer wall in the cooling process, promotes the finished product quality of straw. However, this apparatus has a low crystallization efficiency in the crystallization method, and has poor circularity of the crystal, and cannot reduce the production cost.

Disclosure of Invention

In view of the above, the present invention provides a high-efficiency straw extrusion crystallization system and method with high crystallization efficiency, better crystallization roundness and lower production cost, so as to solve the above problems.

A high efficiency straw extrusion crystallization system comprising:

the extruder is used for extruding the suction pipe fitting;

the crystallizing device is used for heating and crystallizing the outer wall of the suction pipe fitting;

and the internal heating crystallization mechanism is used for blowing out constant-temperature hot air to heat and crystallize the inner wall of the suction pipe piece, and the constant-temperature hot air is blown into the suction pipe piece from the inside of one end, close to the extruder, of the suction pipe piece.

Furthermore, the internal heating crystallization mechanism comprises an air heating device and an air blowing channel connected with the air heating device and the extruder, one end of the air blowing channel, which is close to the extruder, penetrates into the extruder and then extends out of the discharge end of the extrusion die, and the tail end of the air blowing channel, which extends out of the discharge end of the extrusion die, is positioned on the inner side of the pipe suction piece.

Further, the crystallization device is any one of an electrothermal heating crystallization device and a hot water heating crystallization device.

Further, the hot water heating crystallization apparatus includes:

the crystallization water tank is used for storing crystallization water, the continuously output suction pipe piece penetrates through the crystallization water tank after the extrusion molding of the extruder, and the water stored in the crystallization water tank is used for carrying out constant-temperature water crystallization treatment on the continuously output suction pipe piece;

the crystallization radial limiting assembly is provided with a radial limiting channel for the suction pipe to axially penetrate through, the crystallization radial limiting assembly is positioned in the water of the crystallization water tank, the continuously output suction pipe penetrates through the radial limiting channel, and the radial limiting channel is used for limiting the radial deformation of the suction pipe during water crystallization;

and the internal heating crystallization mechanism is used for blowing out constant-temperature hot air to heat and crystallize the inner wall of the suction pipe piece, and the constant-temperature hot air is blown into the suction pipe piece from the inside of one end, close to the extruder, of the suction pipe piece.

Furthermore, a hot water constant temperature crystallization section and a constant temperature cooling water crystallization section are arranged in the crystallization water tank, and a suction pipe continuously output from the extruder sequentially passes through the hot water constant temperature crystallization section and the constant temperature cooling water crystallization section.

Further, the water level in the hot water constant-temperature crystallization area is higher than the water level in the constant-temperature cooling water crystallization area.

Furthermore, the hot water constant temperature crystallization interval is a closed hot water constant temperature crystallization interval, and a vacuum pumping device communicated with the hot water constant temperature crystallization interval is connected to the crystallization water tank.

Further, the crystallization radial limiting assembly is arranged in the box body in a penetrating mode and is immersed in the crystallization water.

Furthermore, the crystallization radial limiting component is also provided with at least two water storage grooves which are arranged on the outer wall of the crystallization radial limiting component in a circumferential distribution mode and are arranged along the length direction of the crystallization radial limiting component, and the bottom of each water storage groove is uniformly provided with at least four water inlet holes communicated with the radial limiting channel.

Furthermore, a material conveying cavity is arranged in the extruder, an extrusion die is arranged in the material conveying cavity, a material conveying driving mechanism is further arranged in the material conveying cavity, the material entering the material conveying cavity is conveyed to the extrusion die by the material conveying driving mechanism, and the material is extruded and molded into a suction pipe fitting and is output from the discharge end of the extrusion die.

Furthermore, the internal heating crystallization mechanism comprises an air heating device and an air blowing channel connected with the air heating device and the extruder, one end of the air blowing channel, which is close to the extruder, penetrates into the extruder and then extends out of the discharge end of the extrusion die, and the tail end of the air blowing channel, which extends out of the discharge end of the extrusion die, is positioned on the inner side of the pipe suction piece.

Furthermore, the high-efficiency suction pipe extrusion crystallization system also comprises an external heating crystallization mechanism connected with the crystallization water tank.

Furthermore, the external heating crystallization mechanism is provided with a crystallization inner cavity and a heating crystallization device which is arranged in the crystallization inner cavity along the length direction of the crystallization shell and is distributed in the circumferential direction.

The straw extrusion crystallization method comprises the following steps:

s1, forming an extrusion pipe, and extruding and forming a continuously output suction pipe by using an extruder;

s2, crystallizing the inner wall and the outer wall, enabling the continuously output suction pipe piece to enter constant temperature water, crystallizing the outer wall of the continuously output suction pipe piece by the constant temperature water, and inputting constant temperature hot air into the continuously output suction pipe piece so as to crystallize the inner wall of the continuously output suction pipe piece;

s3, outer crystallization, namely, carrying out recrystallization on the continuously output suction pipe in a non-contact heating crystallization mode after the suction pipe is processed in S2;

and S4, cutting, namely cutting the continuously output suction pipe processed in the S3 to a fixed length to obtain the finished suction pipe.

Compared with the prior art, the invention has the following advantages:

1. the crystallization water tank adopts a multi-stage crystallization method in the crystallization process of the suction pipe piece by the way that the extruded suction pipe piece is crystallized by hot water firstly and then crystallized by cold water, has temperature buffering, avoids deformation caused by cooling crystallization temperature difference, improves crystallization efficiency and ensures roundness of the suction pipe piece, and is provided with a heating water circulating device to supplement the water quantity and temperature flowing out of a hot water constant temperature crystallization interval by recovering the water quantity exceeding a set water level in a cooling chamber, so that the water quantities of the hot water constant temperature crystallization interval and the constant temperature cooling water crystallization interval are always kept at the set water level and reach a circulation balance value, and the water quantity taken out of a tank body by the suction pipe piece is supplemented.

2. Through establishing radial restriction passageway and the laminating of straw spare outer wall in the major structure, can effectively carry out outside spacingly to straw spare outer wall in the crystallization process, improve the problem that bending deformation appears in straw spare, improve and inhale the pipe spare and become the circularity, the mode that the hold groove was passed through again to the earlier pouring of cooling water simultaneously, straw spare is carried or self factor arouses the undulant environmental impact problem of rivers in the basin has been solved, and in getting into the gap between radial restriction passageway and the straw spare in the inlet opening, form the continuous crystallization water film of one deck at straw spare circumference outer wall, further promote the crystallization effect. The inlet opening on the same radial plane of main part uses the center pin of radial restriction passageway to be the circumference distribution as the axle, makes the cooling water get into and distribute faster more evenly in the radial restriction passageway, promotes crystallization process stability and crystallization efficiency height.

3. Radial restriction subassembly of crystallization is established radial restriction passageway and is laminated with straw spare outer wall in passing through the major structure, can effectively carry out outside spacing and axial direction to straw spare outer wall and carry in the crystallization process, improve the problem that straw spare bending deformation appears, improve the straw spare and become the circularity, the mode that the flow groove was passed through again to earlier pouring of cooling water simultaneously, straw spare is carried or self factor arouses the undulant environmental impact problem of rivers in the basin has been solved, and get into in the gap between radial restriction passageway and the straw spare in the inlet opening, form the continuous crystallization water film of one deck at straw spare circumference outer wall, further promote the crystallization effect.

4. The hot constant temperature air that the passageway of blowing in the internal heating crystallization mechanism produced air heating device blows in inside the straw spare, and extend to the whole crystallization flow of straw spare through inhaling the inside direction of pipe spare, increase the process of carrying out the internal heating annealing crystallization to the straw spare inner wall, it is even to make the straw spare inner wall be heated and cooled, and make the inside atmospheric pressure of straw spare that is located the crystallization water tank stable and offset with outer wall pressure, the inner wall of the radial restriction passageway of straw spare outer wall atress equilibrium more laminating, cooperation straw spare outer wall crystallization, the crystallization efficiency of straw spare and the one-tenth circularity of reinforcing straw spare have further been improved.

5. Can achieve the function of disinfecting products.

Drawings

FIG. 1 is a schematic structural diagram of a high-efficiency straw injection molding crystallization system provided by the invention.

Fig. 2 is a schematic diagram of an injection molding machine and an internal heating crystallization mechanism of the high-efficiency straw injection crystallization system of fig. 1.

FIG. 3 is a first schematic structural diagram of a crystallization water tank of the high-efficiency straw injection molding crystallization system of FIG. 1.

Fig. 4 is a schematic structural diagram ii of a crystallization water tank of the high-efficiency straw injection molding crystallization system of fig. 1.

FIG. 5 is a schematic diagram of a crystallization radial limiting component of the high-efficiency straw injection molding crystallization system of FIG. 1.

FIG. 6 is a radial cross-sectional view of a crystallization radial confinement assembly of the high-efficiency straw injection molding crystallization system of FIG. 1.

FIG. 7 is a first radial cross-sectional view of a first assembled crystallization radial limiting assembly of the high-efficiency straw injection molding crystallization system of FIG. 1.

FIG. 8 is a radial cross-sectional view of a second assembled crystallization radial limiting component of the high-efficiency straw injection molding crystallization system of FIG. 1.

FIG. 9 is a radial cross-sectional view of a third embodiment of the crystallization radial restraining assembly of the high-efficiency straw injection molding crystallization system of FIG. 1.

FIG. 10 is a simplified structural diagram of a crystallization radial confinement assembly of the high-efficiency straw injection molding crystallization system of FIG. 1.

FIG. 11 is a schematic diagram of an external heating crystallization mechanism of the high-efficiency straw injection crystallization system of FIG. 1.

FIG. 12 is an axial cross-sectional view of an external heating crystallization mechanism provided in the high-efficiency straw injection crystallization system of FIG. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Example one

Please refer to fig. 1 to fig. 3, which are schematic structural diagrams of a high-efficiency straw extrusion crystallization system according to the present invention. A high-efficiency straw extrusion crystallization system comprises: the extruder 110 is used for extruding the suction pipe member 140, and the crystallization device is used for heating and crystallizing the outer wall of the suction pipe member. Specifically, the crystallization apparatus of the present embodiment is a hot water heating crystallization apparatus. Specifically, the hot water heating crystallization device comprises a crystallization water tank 200 for storing crystallization water, wherein the suction pipe 140 continuously output after being extruded and molded by the extruder 110 penetrates through the crystallization water tank 200, and the water stored in the crystallization water tank 200 performs constant temperature water crystallization treatment on the suction pipe 140 continuously output; a crystallization radial limiting component 300 which is provided with a radial limiting channel 320 for the suction pipe part 140 to axially penetrate, the crystallization radial limiting component 300 is positioned in the water of the crystallization water tank 200, the continuously output suction pipe part 140 penetrates through the radial limiting channel 320, and the radial limiting channel 320 is used for limiting the radial deformation of the suction pipe part 140 during water crystallization; an internal heating crystallization mechanism 100 for blowing out constant temperature hot air blown into the suction pipe member 140 from the inside of one end of the suction pipe member 140 near the extruder 110 to heat and crystallize the inner wall of the suction pipe member 140; and the external heating crystallization mechanism 400 is used for heating, crystallizing and drying the outer wall of the suction pipe member 140. It is conceivable that the suction pipe 140 formed by the extruder 110 in this embodiment is a continuous plastic pipe, and after one end of the suction pipe 140 is extruded from the extruder 110, the inside of the suction pipe 140 has high sealing performance, and the inside and the outside of the suction pipe 140 do not interfere with each other. The suction pipe member 140 is extruded by the extruder 110 and passes through the crystallization radial direction limiting assembly 300 in the crystallization water tank 200 and the external heating crystallization mechanism 400 at the rear end of the crystallization water tank 200 in sequence. The present high efficiency straw extrusion crystallization system further comprises other functional components and specific structures, such as electrical connection components, delivery tube components, sealing structures, mounting structures, etc., which are well known to those skilled in the art, and therefore, will not be described in detail herein.

The extruder 110 is provided with a material conveying cavity 111, the material conveying cavity 111 is provided with an extrusion feed inlet 112 and an extrusion discharge outlet 113, the extrusion feed inlet 112 of the extruder 110 is connected with a raw material mixing feed hopper 116, raw materials are placed into the raw material mixing feed hopper 116, the raw materials can be premixed and then fall into the material conveying cavity 111, one end of the material conveying cavity 111 close to the extrusion discharge outlet 113 is provided with an extrusion die 114, the material conveying cavity 111 is also provided with a material conveying driving mechanism 115, the extrusion die 114 is a suction pipe fitting 140 forming die, the material conveying driving mechanism 115 is any one of a screw type conveying mechanism or a plunger type conveying mechanism, the raw materials entering the material conveying cavity 111 are stirred, mixed, extruded and conveyed into the extrusion die 114 again, and are extruded and formed into a suction pipe fitting 140 through the extrusion die 114 and discharged from the extrusion discharge outlet 113. Straw extruders are well known in the art and those skilled in the art may modify the extruder configuration in accordance with known techniques.

Referring to fig. 3, the crystallization water tank 200 includes a tank body 210 therein, a water tank inlet 211 connected to the extruder 110, a water tank outlet 212 connected to the external heating crystallization mechanism 400, a hot water constant temperature crystallization zone 213 and a constant temperature cooling water crystallization zone 214 provided in the tank body 210, and a suction pipe 140 continuously output from the extruder 110 sequentially passing through the hot water constant temperature crystallization zone 213 and the constant temperature cooling water crystallization zone 214. The hot water constant temperature crystallization zone 213 and the constant temperature cooling water crystallization zone 214 are separated by a partition plate 215, the partition plate 215 is provided with a communication hole 216 for communicating the hot water constant temperature crystallization zone 213 and the constant temperature cooling water crystallization zone 214, and the suction pipe 140 enters the constant temperature cooling water crystallization zone 214 from the hot water constant temperature crystallization zone 213, namely, passes through the communication hole 216. In addition, a person skilled in the art can think that the length of the hot water constant temperature crystallization zone 213 and the length of the constant temperature cooling water crystallization zone 214 are correspondingly adjusted by setting the discharging speed of the extruder 110, in this embodiment, the length of the hot water constant temperature crystallization zone 213 is greater than the length of the constant temperature cooling water crystallization zone 214, the whole process adopts an automatic technology, and the length of the increased hot water constant temperature crystallization zone 213 is the length of the extended suction pipe member for crystallization in hot water, which is more beneficial to improving the crystallization efficiency.

The structure of the crystallization water tank 200 enables the crystallization process of the suction pipe 140 to have temperature buffering by the way of firstly crystallizing the extruded suction pipe 140 through hot water and then crystallizing the extruded suction pipe 140 through cold water, thereby avoiding deformation caused by higher cooling crystallization temperature difference, improving crystallization efficiency and ensuring roundness of the suction pipe 140.

In order to ensure the water temperature of the hot water constant temperature crystallization zone 213 to be uniform and stable and prevent the water in the constant temperature cooling water crystallization zone 214 from flowing backwards into the hot water constant temperature crystallization zone 213, the water level in the hot water constant temperature crystallization zone 213 is set to be higher than the water level in the constant temperature cooling water crystallization zone 214, i.e. the pressure in the hot water constant temperature crystallization zone 213 is higher than the water pressure in the constant temperature cooling water crystallization zone 214, the water flowing direction is always the hot water constant temperature crystallization zone 213 flowing to the constant temperature cooling water crystallization zone 214, and the difference of the liquid level of the two chambers is controlled by a heating water circulating device 220 connecting the hot water constant temperature crystallization zone 213 and the constant temperature cooling water crystallization zone 214. The liquid level meters 240 are respectively arranged in the hot water constant temperature crystallization section 213 and the constant temperature cooling water crystallization section 214, and the liquid levels in the hot water constant temperature crystallization section 213 and the constant temperature cooling water crystallization section 214 are confirmed through the liquid level meters 240. The temperature gauges 250 are provided in both the hot water constant temperature crystallization zone 213 and the constant temperature cooling water crystallization zone 214, and the liquid levels in the hot water constant temperature crystallization zone 213 and the constant temperature cooling water crystallization zone 214 are confirmed by the temperature gauges 250.

The heating water circulation device 220 includes a circulation water tank 221, two circulation pipes 22 respectively connected between the hot water constant temperature crystallization zone 213, the constant temperature cooling water crystallization zone 214 and the circulation water tank 221, a water heater 223 disposed in the circulation water tank 221, and a circulation pump 224 disposed in the circulation water tank 221 and connected to the circulation pipe 222. When the water is too heavy, the cold water of the constant temperature cooling water crystallization section 214 exceeding the set water level is discharged into the circulating water tank 221, and is heated to the set temperature by the water heater 223, the heated hot water is input into the hot water constant temperature crystallization section 213 by the power supplied by the circulating pump 224, and the heating water circulation device 220 supplements the water amount and the temperature flowing out of the hot water constant temperature crystallization section 213 by recovering the water amount exceeding the set water level in the constant temperature cooling water crystallization section 214, so that the water amounts of the hot water constant temperature crystallization section 213 and the constant temperature cooling water crystallization section 214 are always kept at the set water level and reach the circulation balance value, and are kept at the constant temperature. The circulation water tank 221 is provided with an additional circulation pipe 225, and the additional circulation pipe 225 is externally supplied with water for supplementing the amount of water taken out of the tank 210 by the suction pipe 140.

The hot water constant temperature crystallization interval 213 is a closed hot water constant temperature crystallization interval, the crystallization water tank 200 is connected with a vacuum pumping device 230 communicated with the hot water constant temperature crystallization interval 213, and the vacuum pumping device is used for adjusting the air pressure value inside the tank 210, so that when the suction pipe 140 enters cooling water, the pressure of water acting on the outer wall of the suction pipe 140 is reduced, the stress of the suction pipe 140 is more uniform, the suction pipe 140 is prevented from being stressed and bent and deformed, and the crystallization quality of the suction pipe 140 is improved.

Referring to fig. 4, it is conceivable that the crystallization water tank may be two independent and spaced tanks 210, the two tanks 210 are integrally inserted into the two tanks 210 through a connecting pipe or a crystallization radial limiting component 300, the tank 210 near one end of the injection molding machine 110 is a hot water constant temperature tank, the tank 210 far away from one end of the injection molding machine 110 is a constant temperature cooling water tank, the hot water constant temperature tank and the constant temperature cooling water tank are both provided with a thermometer 250 and a level gauge 240, and the hot water constant temperature tank is connected with a water heating device to supply water to the hot water constant temperature tank to keep hot water at a constant temperature, and the constant temperature cooling water tank is connected with a cooling water circulating device to control the water level of the constant temperature cooling water tank to keep cooling water at a constant temperature. The same effect of the crystallization water tank 200 can be achieved by the two independent split hot water constant temperature tank bodies and the constant temperature cooling water tank body and by adopting a separation temperature control mode.

The crystallization radial confinement assembly 300 is inserted into the housing 2100 and submerged in the crystallization water. The crystallization radial direction restriction member 300 is separately disposed in the hot water constant temperature crystallization zone 213 and connected to the water tank feed port 211 and the communication hole 216 for feeding guide of the suction pipe member 140. In an extension, the crystal radial direction limiting assembly 300 may be inserted into the hot water constant temperature crystallization zone 213 and the constant temperature cooling water crystallization zone 214, and may be integrally inserted into the communication hole 216 or separately installed at both sides of the communication hole 216.

Referring to fig. 5-6, the crystal radial direction limiting assembly 300 includes a main body 310 in a long tube shape, which is directly placed at the bottom of the crystallization water tank 200 or horizontally installed at the center of the crystallization water tank 200 and is immersed below the cooling water level in the crystallization water tank 200 during use, and the specific installation manner of the main body 310 and the crystallization water tank 200 is not described herein. The section of the external profile of the main body 310 is rectangular, and the structure is beneficial to forming a slotted hole structure on the outer surface of the main body 310, so that the main body 310 is more convenient and faster to install in the crystallization water tank 200 without additionally arranging a support frame for fixed connection.

The main body 310 is provided with a radial limiting channel 320 which penetrates through the main body 310 along the length direction of the main body, the straw 140 enters the radial limiting channel 320 to perform a crystallization process after being extruded, the inner wall of the radial limiting channel 320 is attached to the outer wall of the straw 140, the outer wall of the straw 140 can be effectively limited in the crystallization process, the problem of bending deformation of the straw 140 is solved, and the roundness of the straw 140 is improved. In the present embodiment, the cross section of the radial restriction channel 320 is circular, and it is conceivable that the radial restriction channel 320 may be modified into other cross sectional shapes and adapted to the elongated plastic product crystal corresponding to the cross sectional shape. In this embodiment, the main body 310 is made of red copper material instead of stainless steel material and is integrally extruded, and the red copper material has good thermal conductivity and is resistant to water corrosion, thereby being beneficial to improving the crystallization efficiency of the suction pipe fitting and preventing the suction pipe fitting from being scratched by rust on the inner wall or foreign matters when passing through the radial limiting channel. In addition, as can be appreciated by those skilled in the art, the main body is formed by a plurality of pieces connected by a detachable structure instead of the original integral injection molding structure. The specific structure is described in detail below with reference to fig. 7-9.

The main part 310 is provided with at least two water storage grooves 330 which are arranged on the outer wall of the main part 310 along the length direction of the main part and are circumferentially distributed, and at least four water inlet holes 340 communicated with the radial limiting channels 320 are arranged at the bottoms of the water storage grooves 330 at even intervals. In order to prevent the cooling water from flowing backward into the suction pipe member 140, a predetermined length of the suction pipe member 140 is inserted through the radial restriction passage 320, and then the cooling water is added to the crystallization water tank 200. The cooling water is respectively and correspondingly poured into the flow storage groove 330 from the crystallization water tank 200 in multiple directions, and then enters the gap between the radial limiting channel 320 and the suction pipe 140 from the water inlet 340, so that a continuous crystallization water film is formed on the circumferential outer wall of the suction pipe 140, and the crystallization effect is further improved. The inlet opening 340 on the same radial plane of main part 310 uses the center pin of radial restriction passageway 320 to be the circumference distribution as the axle, and this structure makes the cooling water get into and distributes faster more evenly in radial restriction passageway 320, and the mode that the cooling water was earlier poured into and is held the groove 330 rethread inlet opening 340 and intake has simultaneously solved among the crystallization water tank 200 straw piece 140 and carried or self factor causes the undulant environmental impact problem of rivers, promotes crystallization process stability and crystallization efficiency height.

Referring to fig. 7, the main body 310 is formed by connecting a plurality of blocks through a detachable structure instead of an integral injection molding structure. The main body 310 includes at least two splicing portions 311 connected by a detachable structure, and at least two split material conveying portions 312 correspondingly disposed on the inner sides of the splicing portions 311 and connected to form a radial limiting channel 320. Splicing part 311 is for following the rectangular portion that main part 310 length direction set up, defeated material portion 312 of components of a whole that can function independently is for corresponding the arc portion that sets up at rectangular portion inboard, detachable construction includes two at least edges main part 310 length direction interval sets up the hinge structure 313 between two splicing parts 311, splicing part 311 combines and arc portion circumference encloses into radial restriction passageway 320 through hinge structure 313 concatenation.

Referring to fig. 8, the splicing portion 311 is a long strip portion arranged along the length direction of the main body 310, the split material conveying portion 312 is an arc portion correspondingly arranged on the inner side of the long strip portion, the detachable structure includes a positioning protruding strip 314 arranged on one side of the splicing portion 311, and a positioning groove 315 arranged on one side of the splicing portion 311 away from the positioning protruding strip 314, the splicing portion 311 is correspondingly matched and annularly connected with the positioning groove 315 through the positioning protruding strip 314, and the circumference of the arc portion surrounds a radial limiting channel 320.

Referring to fig. 9, the splicing is a cylindrical portion arranged in the length direction of the main body 310, the split material conveying portion 312 is a splicing channel correspondingly arranged in the cylindrical portion, the detachable structure includes an annular protruding strip 316 arranged on one side of the splicing portion 311, and an annular groove 317 arranged on one side of the splicing portion 311 away from the annular protruding strip 316, the splicing portion 311 is correspondingly matched and axially connected with the annular groove 317 through the annular protruding strip 316, and the splicing channel is axially spliced to form a radial limiting channel 320. The various splicing modes are all helpful to periodically clean and maintain the structure of the main body 310, the difficulty of the injection molding process of the main body 310 is reduced, and the opening precision of the radial limiting channel 320 is further reduced.

Referring to fig. 10, more conveniently, the crystal radial restriction assembly 300 may also be a tubular member 350 for the suction pipe 140 to pass through, and the water inlet holes 340 are uniformly spaced on the outer surface of the tubular member 350, which can also achieve the same effect.

Referring to fig. 2, the internal heating crystallization mechanism 100 further includes an air heating device 120, and an air blowing channel 130 connecting the air heating device 120 and the extruder, wherein an end of the air blowing channel 130 near the extruder 110 penetrates into the extruder 110 and then extends out from a discharge end of the extrusion die 114, and a terminal of the air blowing channel 130 extending out of an extrusion discharge port 113 of the extrusion die 114 is located inside the suction pipe 140. The air heating device 120 is provided with an air cavity 121, an air inlet 122 connected to the air cavity 121, an air outlet 123 disposed at an end of the air cavity 121 remote from the air inlet 122 and connected to the air blowing passage 130, and an electric heating tube 124 disposed in the air cavity 121. The air heating device 120 is provided with an air pump for sucking external air into the air cavity 121 through the air inlet 122 and heating the air in the air cavity 121 through the built-in electric heating tube 124, and it is conceivable that the electric heating tube 124 can be replaced by an electric heating wire, a steam heating tube, and a circulating water heater, and the purpose of heating the air in the air cavity 121 can also be achieved. In this embodiment, the air heating device 120 is disposed outside the extruder 110, and more optimally, a cavity may be disposed inside the extruder 110, and the air heating device 120 is integrally mounted in the extruder 110, so that the whole equipment volume is greatly reduced while the hot air delivery function is realized.

A thermocouple 125 is disposed at an end of the air cavity 121 adjacent to the air outlet 123. The thermocouple 125 is used as a temperature measuring element commonly used in a temperature measuring instrument, converts a temperature signal into a thermal electromotive force signal through the thermocouple 125, and is used in cooperation with a display instrument and a control component, so that the air outlet temperature of the air heating device 120 is controlled and a constant temperature state is achieved. In this embodiment, the temperature of the outlet air of the air heating device 120 ranges from 70 ° to 80 °. The air heating temperature is more effective in crystallizing the inner wall of the straw member 140. The air outlet 123 is provided with an air outlet valve 126, and the air outlet valve 126 is connected with a thermocouple 125. The air outlet valve 126 is controlled by the control component, when the device is not used and the air outlet temperature does not reach the set temperature, the air outlet valve 126 is kept closed, when the air outlet temperature reaches the set temperature, the thermocouple 125 receives a signal and transmits the signal to the control component, and the control component opens the air outlet valve 126 to blow hot air into the air blowing channel 130. This air heating device 120 heating methods is simple, and the heat production is stable, can in time control the temperature ration and give vent to anger, and cooperation control assembly degree of automation is high, improves work efficiency.

One end of the blowing channel 130 close to the extruder 110 penetrates into the extruder 110 and then extends out of the extrusion discharge port 113, and the end of the blowing channel 130 extending out of the extrusion discharge port 113 is an air outlet end of the blowing channel 130 and is located on the inner side of the straw member 140. One end of the blowing channel 130 firstly penetrates into the delivery cavity 111 of the extruder 110, penetrates through the extrusion die 114 and penetrates out of the extrusion discharge port 113, or can be integrally arranged on the extrusion die 114 or the delivery driving mechanism 115 to realize pipeline penetration, and the structure can effectively avoid the interference of the blowing channel 130 on the extrusion molding of the suction pipe piece 140. When the straw member 140 discharges, the end of the straw member 140 close to the extrusion discharge port 113 is in a sealed state, the hot air generated by the air heating device 120 is blown into the interior of the straw member 140 by the blowing channel 130, and the hot air is guided and extended through the interior of the straw member 140, so that the procedure of internal heating annealing crystallization on the inner wall of the straw member 140 is increased, the inner wall of the straw member 140 is uniformly heated and cooled, the internal air pressure of the straw member in the crystallization water tank is stabilized and is balanced with the pressure intensity of the outer wall, the stress on the outer wall of the straw member is balanced, the crystallization is matched with the crystallization on the outer wall of the existing straw member 140, the crystallization efficiency of the straw member 140 is further improved, and the roundness of the straw member 140 is enhanced.

The length direction of the air blowing passage 130 extending out of the extrusion outlet 113 is consistent with the discharge direction of the suction pipe 140. The structure enables the air outlet end of the air blowing channel 130 and the suction pipe 140 to be always kept at intervals, so that the air outlet end of the air blowing channel 130 and the suction pipe 140 are prevented from being interfered with each other, and the air outlet of the air blowing channel 130 is more uniform.

In the embodiment, since the pipe diameter of the conventional suction pipe is small, the blowing channel 130 can ensure the uniformity of the heat of the suction pipe 140 when blowing the constant temperature air into the suction pipe 140, so the blowing channel 130 can be arranged at one end of the suction pipe 140 close to the injection molding machine. In an extension, when the pipe diameter of the pipe suction member 140 is larger, the inner wall of the pipe suction member 140 is uniformly heated by extending the axial length of the air blowing channel 130 in the pipe suction member 140 and forming air outlets on the air blowing channel 130 at uniform intervals.

Referring to fig. 11-12, the external heating crystallization mechanism 400 includes a crystallization housing 410, a crystallization cavity 420 is disposed in the crystallization housing 410, an external heating feed port 413 and an external heating discharge port 414 are respectively disposed at two ends of the crystallization housing 410 in the length direction, and the crystallization cavity 420 is further provided with an external heating crystallization device 440 disposed along the length direction of the crystallization housing 410 and circumferentially disposed outside the suction pipe suspension channel 430. The suction pipe member 140 enters the crystallization inner cavity 420 from the external heating feed port 413 and penetrates out of the external heating discharge port 414, the suction pipe member 140 is in a suspended state in the crystallization inner cavity 420, namely, a suction pipe suspension channel 430 is formed between the external heating feed port 413 and the external heating discharge port 414, the suction pipe member 140 is suspended in the crystallization inner cavity 420, contact between the suction pipe member 140 and the inner wall of the crystallization inner cavity 420 is avoided, a good heating space is provided for the external heating crystallization device 440, and uniform heating of the outer wall of the suction pipe member 140 is facilitated.

The crystallization shell 410 comprises a slot 411 with an opening at the upper end and an upper cover 412 for closing the opening at the upper end of the slot 411, wherein the slot 411 is connected with the upper cover 412 through a bolt. The crystal shell 410 is detachably connected, so that the installation and layout of components such as an external heating crystallization device 440 in the crystal cavity 420 are facilitated, and the later debugging and maintenance are facilitated.

The external heating crystallization device 440 includes at least three heating lamps 441 disposed in the crystallization cavity 420 along the length direction of the crystallization shell 410 and circumferentially disposed in the suction pipe suspension channel 430. Heating lamp 441 irradiates on the outer wall of suction pipe 140 from multiple directions, the generated heat uniformly covers the surface of the outer wall of suction pipe 140, secondary crystallization is performed on the outer wall of suction pipe 140 after water crystallization, the crystallization quality of suction pipe 140 is ensured by the external heating crystallization mode, and the external wall water stain of suction pipe 40 can be dried. It is contemplated that the external heating crystallization device 440 may alternatively be a spiral electric heating tube or a circumferentially disposed steam heating system.

An ultraviolet disinfection lamp 450 is also arranged in the crystallization inner cavity. The ultraviolet disinfection lamp 450 is arranged to disinfect and sterilize the straw 140 while the straw 140 is heated and crystallized, so that the process quality of the straw 140 is improved.

A desiccant 460 is also disposed within the crystallization cavity 420. The drying agent 460 is provided for absorbing the water vapor evaporated by the external heating crystallization device, so that the crystallization cavity 420 is always kept in a relatively dry environment, and the crystallization environment is in a consistent state. After the pipe suction member 140 discharges from the external heating discharge port 414, the process of the efficient extrusion crystallization system is completed.

Example two

Based on the above-mentioned high-efficiency straw extrusion crystallization system of the first embodiment, the present embodiment further provides a straw extrusion crystallization method, which includes the following steps:

s1, forming an extrusion pipe, and extruding and forming the suction pipe 140 which is continuously output by using the extruder 110;

s2, crystallizing the inner wall and the outer wall, enabling the continuously output suction pipe 140 to enter constant temperature water, crystallizing the outer wall of the continuously output suction pipe 140 by the constant temperature water, and inputting constant temperature hot air into the continuously output suction pipe 140 so as to crystallize the inner wall of the continuously output suction pipe 140;

s3, outer crystallization, namely, the continuously output suction pipe 140 is subjected to S2 treatment and then is crystallized again in a non-contact heating crystallization mode;

and S4, cutting, namely cutting the continuously output suction pipe 140 processed in the S3 into fixed length, and finally obtaining the finished suction pipe.

The injection molding crystallization method has high automation degree in the whole production process, adopts the fixed-length cutting process after the injection molding crystallization integrated production of the suction pipe fittings 140, and adopts the continuous production mode of uninterrupted suction pipes, so that each suction pipe fitting 140 is uniformly heated and is not adhered, the production quality is high, the consistency is realized, the working efficiency is further improved, and the crystallization effect is improved.

EXAMPLE III

The structure and principle of this embodiment are basically the same as those of the first embodiment, and the different structures are as follows: the crystallization device is an electrothermal crystallization device, for example, a structure in which a plurality of electric heating pipes are distributed on the periphery of the straw member 140.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims (10)

1. A high efficiency straw extrusion crystallization system comprising:

the extruder for the extrusion moulding of straw spare, its characterized in that, crystallization system is extruded to high-efficient straw still includes:

the crystallizing device is used for heating and crystallizing the outer wall of the suction pipe fitting;

and the internal heating crystallization mechanism is used for blowing out constant-temperature hot air to heat and crystallize the inner wall of the suction pipe piece, and the constant-temperature hot air is blown into the suction pipe piece from the inside of one end, close to the extruder, of the suction pipe piece.

2. The high-efficiency straw extrusion crystallization system as claimed in claim 1, wherein the internal heating crystallization mechanism comprises an air heating device, and a blowing channel connecting the air heating device and the extruder, wherein one end of the blowing channel close to the extruder penetrates into the extruder and then extends out from the discharge end of the extrusion die, and the end of the blowing channel extending out of the discharge end of the extrusion die is located inside the straw member.

3. The high-efficiency straw extrusion crystallization system as claimed in claim 1, wherein the crystallization device is any one of an electrothermal heating crystallization device and a hot water heating crystallization device.

4. The high efficiency straw extrusion crystallization system of claim 1, wherein the hot water heating crystallization device comprises:

the crystallization water tank is used for storing crystallization water, the continuously output suction pipe piece penetrates through the crystallization water tank after the extrusion molding of the extruder, and the water stored in the crystallization water tank is used for carrying out constant-temperature water crystallization treatment on the continuously output suction pipe piece;

the crystallization radial limiting assembly is provided with a radial limiting channel for the suction pipe part to axially penetrate through, the crystallization radial limiting assembly is positioned in the water of the crystallization water tank, the continuously output suction pipe part penetrates through the radial limiting channel, and the radial limiting channel is used for limiting the radial deformation of the suction pipe part during water crystallization.

5. The high-efficiency straw extrusion crystallization system as claimed in claim 4, wherein the crystallization water tank is provided therein with a hot water constant temperature crystallization zone and a constant temperature cooling water crystallization zone, and the straw continuously output from the extruder sequentially passes through the hot water constant temperature crystallization zone and the constant temperature cooling water crystallization zone.

6. The high-efficiency straw extrusion crystallization system as claimed in claim 5, wherein the hot water constant temperature crystallization zone is a closed hot water constant temperature crystallization zone, and the crystallization water tank is connected with a vacuum extractor communicated with the hot water constant temperature crystallization zone.

7. The high-efficiency straw extrusion crystallization system as claimed in claim 5, wherein the water level in the hot water constant temperature crystallization zone is higher than the water level in the constant temperature cooling water crystallization zone.

8. The high efficiency straw extrusion crystallization system of claim 4, wherein the crystallization radial confinement assembly is disposed through the tank and submerged in the crystallization water; the radial restriction subassembly of crystallization still is equipped with two at least edges the radial restriction subassembly length direction of crystallization is seted up and is the circumference and distributes and set up and be in hold the groove on the radial restriction subassembly outer wall of crystallization, hold the groove bottom and evenly set up four at least intercommunications the inlet opening of radial restriction passageway.

9. The high-efficiency straw extrusion crystallization system as claimed in claim 4, wherein the high-efficiency straw extrusion crystallization system further comprises an external heating crystallization mechanism connected to the crystallization water tank.

10. The high-efficiency straw extrusion crystallization system of any one of claims 1 to 9 is adopted in the straw extrusion crystallization method, and the straw extrusion crystallization method comprises the following steps:

s1, forming an extrusion pipe, and extruding and forming a continuously output suction pipe by using an extruder;

s2, crystallizing the inner wall and the outer wall, enabling the continuously output suction pipe piece to enter constant temperature water, crystallizing the outer wall of the continuously output suction pipe piece by the constant temperature water, and inputting constant temperature hot air into the continuously output suction pipe piece so as to crystallize the inner wall of the continuously output suction pipe piece;

s3, outer crystallization, namely, carrying out recrystallization on the continuously output suction pipe in a non-contact heating crystallization mode after the suction pipe is processed in S2;

and S4, cutting, namely cutting the continuously output suction pipe processed in the S3 to a fixed length to obtain the finished suction pipe.

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