Efficient and stable liner tube product production line
By designing high-efficiency and stable liner product production lines, using components such as extruders, segmented sinks and vacuum shaping molds, the existing equipment cannot meet the high-yield demand and unstable quality, and achieve an efficient and stable production process and the effect of reducing production costs.
Patent Information
- Application Number
- CN202422284767.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing production equipment of liner products cannot meet the high output demand, and there are problems of unstable quality and insufficient production capacity, resulting in increased production costs.
A production line of high-efficiency and stable liner products is designed, including an extruder, a segmented sink and a vacuum setting mold. By drying the material cylinder, an extrusion mold, a sink forming zone, a cooling zone and a high temperature zone, uniform extrusion, rapid setting and uniform cooling of the molten materials are achieved.
It improves product quality, is convenient to operate, has high production efficiency, stable processing quality, saves energy, reduces production costs, and effectively eliminates quality defects such as liner bending.
Smart Images
Figure CN222946166U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile control cable product processing equipment, and specifically relates to a highly efficient and stable liner pipe product production line. Background Art
[0002] At present, there are many types of automotive control cable products with large output. All cable products require inner lining tubes, which are basically made of PA, PP, PE, POM and other materials. However, due to the large number of lining tube products required for production, the existing production equipment and process methods cannot meet the actual production needs, and there are problems such as unstable quality and insufficient production capacity, which increases the production cost of lining tubes. Therefore, it is necessary to improve the existing lining tube product production equipment. Utility Model Content
[0003] The utility model aims at solving the above problems and provides a high-efficiency and stable liner pipe product production line which can improve product quality, is easy to operate, has high production efficiency, stable processing quality, saves energy and reduces production costs.
[0004] The technical solution adopted by the utility model is: the efficient and stable liner product production line includes an extruder for melting raw materials and extruding them at a uniform speed, and is characterized in that: a drying barrel is provided at the inlet of the extruder, an extrusion die is provided at the outlet of the extruder, a segmented water trough is arranged at the rear of the extruder, the segmented water trough includes a water trough forming area arranged on the side close to the extruder outlet, a water trough cooling area and a water trough high-temperature area are sequentially extended from the rear end of the water trough forming area, partition plates are respectively arranged between the various areas of the segmented water trough, and through holes corresponding to the shape of the liner product are arranged on the partition plates; a vacuum shaping die is also arranged at the front end of the water trough forming area of the segmented water trough, the vacuum shaping die is arranged in alignment with the extrusion die, the vacuum shaping die is connected to a vacuum pump, and the segmented water trough is connected to a chiller and a water tank; a traction machine for driving the liner to move continuously on the production line is arranged at the rear of the outlet of the high-temperature zone of the sectional water trough, and a cutting machine for cutting the liner to a fixed length according to size is arranged at the rear of the traction machine.
[0005] The extrusion die comprises a die body, a molding cavity which is narrow in front and wide in the back is arranged inside the die body, and a molten material inlet is arranged at the front end of the die body; and a mouth die is arranged at the rear of the die body, a tapered cavity which is wide in front and narrow in the back is arranged inside the mouth die, and a liner blank extrusion port is arranged at the rear end of the tapered cavity, and the mouth die is connected to the rear of the die body through a pressure cap; a diverter shuttle is arranged in the molding cavity of the die body, a mold core is arranged in the tapered cavity of the mouth die, and the front end of the mold core is fixedly connected to the rear end of the diverter shuttle, and a molding blow hole is also arranged on the die body, and the molding blow hole is connected to the diverter shuttle and the tube cavity molding blow channel arranged inside the mold core. So that the molten material enters the molding cavity from the molten material inlet at the connection between the extrusion die and the extruder barrel, and the raw material is compacted and rectified by the diverter shuttle; then, the raw material enters the mouth die, and is extruded from the liner blank extrusion port at a uniform speed through the gap between the mouth die and the mold core, and then the tractor pulls the extruded liner blank into the vacuum shaping die.
[0006] The diverter shuttle is provided with a diverter expansion cone on one side facing the molten material inlet, and a core connection part for connecting with the mold core is provided on the other side of the diverter shuttle, and a plurality of groups of diverter arc through holes arranged along the same circumference are provided on the bottom of the diverter expansion cone and the shuttle body of the diverter shuttle, and an in-shuttle blowing channel is also provided inside the shuttle body of the diverter shuttle, one end of the in-shuttle blowing channel is connected to the molding blowing hole on the mold body, and the other end of the in-shuttle blowing channel is connected to the blowing channel on the mold core. The diverter shuttle is connected to the rear mold core through the core connection part, and the expansion angle of the diverter expansion cone and a plurality of groups of diverter arc through holes located in the molding cavity are used to ensure the flow velocity balance of the molten material inside the mold body and compact the molten material; at the same time, the in-shuttle blowing channel and the blowing channel on the mold core form the tube cavity molding blowing channel.
[0007] The outer wall of the mold core is provided with a forming shrinkage cone surface, one end of the mold core is provided with a shuttle connection part for connecting with a diverter shuttle, the other end of the mold core is connected with the liner blank extrusion port at the end of the die, and the core body of the mold core is also provided with an inner core blowing channel, one end of the inner core blowing channel is connected with the blowing channel on the diverter shuttle, and the other end of the inner core blowing channel is connected with the liner blank extrusion port. The mold core is connected with the diverter shuttle in front by using the shuttle connection part, and the shrinkage angle of the forming shrinkage cone surface located in the conical cavity is used to fully compact the molten material in the process from entering the molding cavity to the die extrusion, and at the same time, it is ensured that there is no pressure relief point in the intermediate process, the stability of the extrusion is maintained, and the extrusion process ensures that the material flow direction is consistent, effectively preventing the occurrence of dead corners or secondary vortexes in the material.
[0008] The vacuum shaping mold includes a pre-cooling sleeve, a liner blank inlet is arranged on the front side of the pre-cooling sleeve, a fixed sleeve cover is arranged on the rear side of the pre-cooling sleeve for fixing the vacuum shaping mold on the end face of the water tank, a vacuum sleeve is arranged behind the fixed sleeve cover, a vacuum cavity is arranged inside the vacuum sleeve, and the vacuum cavity is connected to the vacuum pump through the vacuum connection hole on the side wall; a sizing sleeve arranged along the conveying direction of the liner blank is also arranged in the vacuum cavity, the front end of the sizing sleeve passes through the fixed sleeve cover and is connected to the liner blank inlet, the rear end of the sizing sleeve is provided with a liner finished product outlet, and the rear part of the sizing sleeve is connected to the end of the vacuum sleeve through the fixed end cover. The vacuum shaping mold is fixed in the water tank forming area at the front of the segmented water tank by a fixed sleeve cover, and the shaping mold is completely immersed below the water surface during production to ensure stable forming; and a vacuum pump is used to form a vacuum negative pressure space in the vacuum cavity of the vacuum sleeve and the interior of the sizing sleeve, so that the liner blank after pre-cooling by the pre-cooling sleeve is closely attached to the inner wall of the sizing sleeve for shaping, thereby achieving the specified external dimensions.
[0009] The pre-cooling jacket is provided with a cooling cavity inside, which is connected to the chiller and the water tank through cooling water inlet and outlet respectively, and the cooling cavity is also connected to the liner blank inlet on the front side of the pre-cooling jacket. The liner blank is pre-cooled by circulating the water in the water tank cooled by the chiller in the cooling cavity of the pre-cooling jacket; and the cooling water in the cooling cavity can also flow out from the liner blank inlet on the front side of the pre-cooling jacket, thereby further playing the role of pre-cooling and lubrication.
[0010] The middle part of the sizing sleeve is provided with a liner blank sizing cavity, and the side wall of the liner blank sizing cavity is provided with a plurality of vacuum negative pressure through holes arranged radially and connected with the vacuum cavity, and a sleeve cover connecting part is provided at one end of the sizing sleeve, and an end cover connecting part is provided at the other end of the sizing sleeve. The two ends of the sizing sleeve are respectively connected with the fixed sleeve cover and the fixed end cover through the sleeve cover connecting part and the end cover connecting part, and a plurality of vacuum negative pressure through holes connected with the vacuum cavity are used to form a vacuum negative pressure inside the liner blank sizing cavity.
[0011] The cross-sectional shape of the sizing cavity of the liner blank corresponds to the cross-sectional shape of the liner finished product, so as to form a corresponding liner finished product according to the shape requirements of the product (for example, the cross-sectional shape can be triangular or circular).
[0012] The length of the water tank forming area of the segmented water tank is 0.5-0.8 meters, the length of the water tank cooling area is 2.4-2.8 meters, and the length of the water tank high temperature area is 1.1-1.4 meters. The liner product can be quickly shaped in the water tank forming area to ensure the product size and surface requirements; and because the water tank cooling area adopts water immersion cooling, the liner product can dissipate heat evenly and quickly to prevent the liner from bending and insufficient cooling; and then the water tank high temperature area is heated by the heating pipe to effectively eliminate the internal stress of the liner material and improve the product quality.
[0013] The utility model has the following beneficial effects: since the utility model adopts a drying barrel provided at the inlet of the extruder, an extrusion die provided at the outlet of the extruder, and a segmented water tank arranged at the rear of the extruder, the segmented water tank includes a water tank forming area provided at one side close to the outlet of the extruder, a water tank cooling area and a water tank high temperature area are sequentially extended at the rear end of the water tank forming area, and partition plates are respectively provided between the areas of the segmented water tank, and through holes are provided on the partition plates; a vacuum shaping die is provided at the front end of the water tank forming area of the segmented water tank, the vacuum shaping die is arranged in alignment with the extrusion die, the vacuum shaping die is connected to a vacuum pump, and the segmented water tank is connected to a chiller and a water tank; a traction machine is arranged at the rear of the outlet of the high temperature zone of the water tank of the segmented water tank, and a cutting machine is arranged at the rear of the traction machine, so the utility model has a reasonable design, a compact structure, and can save layout space, can improve product quality, is easy to operate, and has high production efficiency; and the cooling effect is good, quality defects such as liner bending can be eliminated, and the processing quality is stable; at the same time, the cutting size has high precision, the process is saved, the energy is saved, and the production cost is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] Figure 2 yes Figure 1 A structural schematic diagram of the extrusion die.
[0016] Figure 3 yes Figure 2 A structural schematic diagram of the diversion shuttle in FIG.
[0017] Figure 4 yes Figure 3 Section view along line AA.
[0018] Figure 5 yes Figure 2 A structural schematic diagram of the mold core.
[0019] Figure 6 yes Figure 1 A structural schematic diagram of a vacuum forming mold.
[0020] Figure 7 yes Figure 6 A structural schematic diagram of a sizing sleeve in FIG.
[0021] Figure 8 yes Figure 7 Section view along line BB.
[0022] Explanation of the numbers in the figure: 1 drying barrel, 2 extruder, 3 extrusion die, 4 vacuum shaping die, 5 vacuum pump, 6 segmented water tank, 7 water tank molding area, 8 water tank cooling area, 9 water tank high temperature area, 10 water tank, 11 chiller, 12 traction machine, 13 cutting machine, 14 mold body, 15 diversion shuttle, 16 die, 17 conical cavity, 18 mold core, 19 gland, 20 molten material inlet, 21 molding cavity, 22 liner blank extrusion port, 23 molding blowing hole, 24 tube inner cavity molding blowing channel, 25 diversion expansion 1. a conical surface, 26 a diversion arc through hole, 27 a core connection part, 28 an air blowing channel in the shuttle, 29 a forming shrinkage conical surface, 30 a shuttle connection part, 31 an air blowing channel in the core, 32 a pre-cooling sleeve, 33 a cooling cavity, 34 an inlet and outlet of cooling water, 35 a fixed sleeve cover, 36 a vacuum sleeve, 37 a vacuum cavity, 38 a vacuum connection hole, 39 a sizing sleeve, 40 a fixed end cover, 41 an inlet of a liner blank, 42 an outlet of a liner finished product, 43 a sizing through cavity of a liner blank, 44 a vacuum negative pressure through hole, 45 a sleeve cover connection part, and 46 an end cover connection part. DETAILED DESCRIPTION
[0023] according to Figures 1 to 8 The specific structure of the utility model is described in detail. The efficient and stable liner product production line includes an extruder 2 (the extruder can be a 35-type extruder of Hexin Company) for melting and uniformly extruding raw materials (plastic particles). The inlet of the extruder 2 is provided with a drying barrel 1 for drying and dehumidifying the plastic particles, and the outlet of the extruder 2 is provided with an extrusion mold 3 for extruding the molten material into a liner blank. A segmented water tank 6 is arranged at the rear of the extruder 2, and a vacuum shaping mold 4 is also arranged at the front end of the water tank molding area 7 in front of the segmented water tank 6. The vacuum shaping mold 4 is arranged in alignment with the extrusion mold 3, and the central axis of the vacuum shaping mold 4 is slightly lower than the central axis of the extrusion mold 3.
[0024] The extrusion die 3 located at the outlet of the extruder 2 includes a die body 14, a molding cavity 21 which is narrow at the front and wide at the rear is arranged inside the die body 14, and a molten material inlet 20 is arranged at the front end of the die body 14. In addition, a mouth die 16 is arranged at the rear of the die body 14, a tapered cavity 17 which is wide at the front and narrow at the rear is arranged inside the mouth die 16, and a liner blank extrusion port 22 is arranged at the rear end of the tapered cavity 17, and the mouth die 16 is connected to the rear of the die body 14 through a pressure cap 19. At the same time, a diverter shuttle 15 is arranged in the molding cavity 21 of the die body 14, a core 18 is arranged in the tapered cavity 17 of the mouth die 16, and the front end of the core 18 is fixedly connected to the rear end of the diverter shuttle 15. In addition, a molding blow hole 23 is also arranged on the die body 14, and the molding blow hole 23 is connected to the tube cavity molding blow channel 24 arranged inside the diverter shuttle 15 and the core 18. Thus, the molten material enters the molding cavity 21 from the molten material inlet 20 at the connection between the extrusion die 3 and the barrel of the extruder 2, and is compacted and rectified by the diverter shuttle 15; thereafter, the raw material enters the die 16, and is extruded from the liner blank extrusion port 22 at a uniform speed through the gap between the die 16 and the die core 18; subsequently, the traction machine 12 pulls the extruded liner blank into the vacuum shaping die 4.
[0025] Moreover, a diverter expansion cone 25 is provided on the shuttle body of the diverter shuttle 15 on the side facing the molten material inlet 20, and a core connecting portion 27 for connecting to the mold core 18 is provided on the other side of the diverter shuttle 15, and three groups of diverter arc through holes 26 evenly distributed along the same circumference are provided at the bottom of the diverter expansion cone 25 and on the shuttle body of the diverter shuttle 15. An in-shuttle blowing channel 28 is also provided inside the shuttle body of the diverter shuttle 15, one end of the in-shuttle blowing channel 28 is connected to the molding blowing hole 23 on the mold body 14, and the other end of the in-shuttle blowing channel 28 is connected to the core blowing channel 31 on the mold core 18; then the diverter shuttle 15 is connected to the rear mold core 18 through the core connecting portion 27, and the expansion angle of the diverter expansion cone 25 located in the molding cavity 21 and a plurality of groups of diverter arc through holes 26 are utilized to ensure the flow velocity balance of the molten material inside the mold body and to compact the molten material; at the same time, the in-shuttle blowing channel 28 and the core blowing channel 31 on the mold core 18 are utilized to form the tube cavity molding blowing channel 24.
[0026] A forming shrinkage cone 29 is also provided on the outer wall of the mold core 18, and a shuttle connection portion 30 for connecting to the diverter shuttle 15 is provided at one end of the mold core 18, and the other end of the mold core 18 is connected to the liner blank extrusion port 22 at the end of the die 16; and an inner core blowing channel 31 is also provided inside the core body of the mold core 18, and one end of the inner core blowing channel 31 is connected to the inner core blowing channel 28 on the diverter shuttle 15, and the other end of the inner core blowing channel 31 is connected to the liner blank extrusion port 22; the shuttle connection portion 30 is used to connect the mold core 18 to the front diverter shuttle 15, and the shrinkage angle of the forming shrinkage cone 29 located in the conical cavity 17 is used to make the molten material fully compacted in the process from entering the molding cavity 21 to being extruded from the die 16; at the same time, it is ensured that there will be no pressure relief points in the intermediate process, the stability of the extrusion is maintained, and the extrusion process ensures that the material flow direction is consistent, effectively preventing the occurrence of dead corners or secondary vortexes in the material.
[0027] In addition, the vacuum shaping mold 4 located at the front end of the water tank forming area 7 of the segmented water tank 6 includes a precooling sleeve 32, and a liner blank inlet 41 is provided at the front side of the precooling sleeve 32, and the size of the liner blank inlet 41 is slightly larger than the size of the liner blank sizing cavity 43 of the sizing sleeve 39; at the same time, a cooling cavity 33 is provided inside the precooling sleeve 32, and the cooling cavity 33 is connected to the chiller 11 and the water tank 10 through the cooling water inlet and outlet 34, respectively, and the middle part of the front side of the cooling cavity 33 is also connected to the liner blank inlet 41 at the front side of the precooling sleeve 32. Then, the liner blank is precooled by circulating the water in the water tank 10 cooled by the chiller 11 in the cooling cavity 33 of the precooling sleeve 32; and the cooling water in the cooling cavity 33 can also flow out from the liner blank inlet 41 at the front side of the precooling sleeve 32 to further play the role of precooling and lubrication.
[0028] On the rear side of the pre-cooling sleeve 32, a fixed sleeve cover 35 is provided for fixing the vacuum shaping mold 4 on the end surface of the water tank, and a vacuum sleeve 36 is provided behind the fixed sleeve cover 35; a vacuum cavity 37 is provided inside the vacuum sleeve 36, and the vacuum cavity 37 is connected to the vacuum pump 5 through a vacuum connection hole 38 on the side wall. A sizing sleeve 39 arranged along the conveying direction of the liner blank is also provided in the vacuum chamber 37, a sizing cavity 43 for the liner blank is provided in the middle of the sizing sleeve 39, a plurality of vacuum negative pressure through holes 44 arranged radially along the cavity cross section and connected with the vacuum chamber 37 are provided on the side wall of the sizing cavity 43 for the liner blank, a sleeve cover connecting portion 45 is provided at one end of the sizing sleeve 39, and an end cover connecting portion 46 is provided at the other end of the sizing sleeve 39; and then the two ends of the sizing sleeve 39 are respectively connected to the fixed sleeve cover 35 and the fixed end cover 40 through the sleeve cover connecting portion 45 and the end cover connecting portion 46, and a plurality of vacuum negative pressure through holes 44 connected with the vacuum chamber 37 are used to form a vacuum negative pressure inside the sizing cavity 43 for the liner blank. It can be understood that the cross-sectional shape of the sizing cavity 43 of the liner blank corresponds to the cross-sectional shape of the liner finished product, and then the corresponding liner finished product is formed according to the shape requirements of the product (for example, the cross-sectional shape can be triangular or circular).
[0029] At the same time, the front end (inlet) of the sizing sleeve 39 passes through the fixed sleeve cover 35 and is connected to the liner blank inlet 41, and the rear end of the sizing sleeve 39 is provided with a liner finished product outlet 42, and the rear of the sizing sleeve 39 is connected to the end of the vacuum sleeve 36 through the fixed end cover 40. Therefore, the vacuum shaping mold 4 is fixed in the water tank forming area 7 at the front of the segmented water tank 6 through the fixed sleeve cover 35, and the shaping mold is completely immersed below the water surface during production, thereby ensuring stable shaping; and the vacuum pump 5 is used to form a vacuum negative pressure space in the vacuum cavity 37 of the vacuum sleeve 36 and the interior of the sizing sleeve 39, thereby making the liner blank, which has been pre-cooled by the pre-cooling sleeve 32, close to the inner wall of the sizing sleeve 39 for shaping, so as to achieve the specified external dimensions.
[0030] The segmented water tank 6 includes a water tank forming area 7 arranged near the outlet of the extruder 2, and a water tank cooling area 8 and a water tank high temperature area 9 are sequentially extended at the rear end of the water tank forming area 7. The length of the water tank forming area 7 of the segmented water tank 6 is between 0.5 and 0.8 meters (for example, it can be 0.5 meters), the length of the water tank cooling area 8 is between 2.4 and 2.8 meters (for example, it can be 2.4 meters), and the length of the water tank high temperature area 9 is between 1.1 and 1.4 meters (for example, it can be 1.1 meters); thereby, the liner product is quickly shaped in the water tank forming area 7 to ensure the product size requirements and surface requirements; and, since the water tank cooling area 8 adopts a water immersion cooling method, the liner product can dissipate heat evenly and quickly to prevent the liner from bending and insufficient cooling; and later, the water tank high temperature area 9 is heated by a heating pipe to effectively eliminate the internal stress of the liner material and improve the product quality. In addition, partition plates are provided between each area of the segmented water tank 6, and through holes corresponding to the shape of the liner product are provided on the partition plates; and according to specific usage requirements, the partition plates can be made of silicone plates with a thickness of 1 to 2 mm.
[0031] Moreover, the vacuum setting mold 4 arranged at the front end of the water tank forming area 7 of the segmented water tank 6 is connected to the vacuum pump 5, and the segmented water tank 6 is connected to the chiller 11 and the water tank 10. Behind the outlet of the high temperature area 9 of the segmented water tank 6, a tractor 12 is arranged for driving the liner to move continuously on the production line, and behind the tractor 12, a cutter 13 is arranged for cutting the liner according to size and fixed length (the tractor and the cutter can use the existing production equipment of the new company); according to production needs, before the liner material is cut, a heating pipe can be added to soften the liner to facilitate cutting by the cutter 13.
[0032] When the efficient and stable liner product production line is used, first, the raw materials (plastic particles) are dried and dehumidified by the drying barrel 1, and then enter the extruder 2, where they are melted and extruded at a uniform speed, and the molten material at the outlet of the extruder 2 directly enters the extrusion die 3. Then, the molten material is fully rectified and compacted inside the extrusion die 3, and extruded from the liner blank extrusion port 22 at the end of the die 16, and during the extrusion process, air is continuously blown into the tube inner cavity molding blow channel 24 from the molding blow hole 23, thereby ensuring that the liner enters the vacuum shaping die 4 set at the front end of the segmented water tank 6 in the shape of a round tube under the action of the tractor 12. Afterwards, the liner blank discharged from the liner blank extrusion port 22 of the extrusion die 3 enters the sizing sleeve 39 inside the vacuum sleeve 36 through the liner blank inlet 41 at the front end of the pre-cooling sleeve 32 of the vacuum shaping die 4. The precooling sleeve 32 mainly plays the role of precooling and lubrication, and the plastic liner blank enters the sizing sleeve 39 inside the vacuum sleeve 36 in a "soft state". At the same time, the liner blank is formed quickly by using the sizing cavity 43 of the sizing sleeve 39 which forms a vacuum negative pressure under the action of the vacuum pump 5. The formed liner is discharged from the liner finished product outlet 42 of the vacuum shaping mold 4, and then cooled by the segmented water tank 6. In addition, due to high-speed production, the water temperature rises quickly, so the chiller 11 is used to continuously cool the circulating water in the water tank 10. When the liner is fully shaped, it is sent to the cutting machine 13 controlled by a microcomputer, so that it is cut to a fixed length according to the use size; after cutting, the liner is dried and packaged.
Claims
1. An efficient and stable production line for liner products, an extruder (2) for melting raw materials and extruding them at a uniform speed, characterized in that: The inlet of the extruder (2) is provided with a drying barrel (1), the outlet of the extruder (2) is provided with an extrusion die (3), a segmented water tank (6) is arranged at the rear of the extruder (2), the segmented water tank (6) comprises a water tank forming area (7) arranged on the side close to the outlet of the extruder (2), a water tank cooling area (8) and a water tank high temperature area (9) are sequentially extended from the rear end of the water tank forming area (7), and partition plates are respectively arranged between the various areas of the segmented water tank (6), and through holes corresponding to the outer shape of the liner product are arranged on the partition plates; the segmented water tank (6) is provided with a plurality of through holes corresponding to the outer shape of the liner product; A vacuum shaping mold (4) is also provided at the front end of the water tank forming area (7) of the segmented water tank (6), the vacuum shaping mold (4) is arranged in alignment with the extrusion mold (3), the vacuum shaping mold (4) is connected to the vacuum pump (5), and the segmented water tank (6) is connected to the chiller (11) and the water tank (10); a traction machine (12) for driving the liner to move continuously on the production line is arranged behind the outlet of the water tank high temperature area (9) of the segmented water tank (6), and a cutting machine (13) for cutting the liner into a fixed length according to the size is arranged behind the traction machine (12).
2. The efficient and stable liner product production line according to claim 1 is characterized by: The extrusion die (3) comprises a die body (14), the interior of the die body (14) is provided with a molding cavity (21) which is narrow at the front and wide at the rear, and the front end of the die body (14) is provided with a molten material inlet (20); and the rear part of the die body (14) is provided with a mouth die (16), the interior of the mouth die (16) is provided with a conical cavity (17) which is wide at the front and narrow at the rear, and the rear end of the conical cavity (17) is provided with a liner blank extrusion port (22), and the mouth die (16) is connected to the die body through a pressure cover (19). The mold body (14) is connected to the rear part of the mold body (14); a diverter shuttle (15) is arranged in the molding cavity (21) of the mold body (14); a mold core (18) is arranged in the conical cavity (17) of the die (16); and the front end of the mold core (18) is fixedly connected to the rear end of the diverter shuttle (15); and a molding blow hole (23) is also arranged on the mold body (14); the molding blow hole (23) is connected to the diverter shuttle (15) and a tube inner cavity molding blow channel (24) arranged inside the mold core (18).
3. The efficient and stable liner product production line according to claim 2 is characterized by: The diverter shuttle (15) is provided with a diverter expansion cone (25) on one side facing the molten material inlet (20), and a core connection portion (27) for connecting to the mold core (18) is provided on the other side of the diverter shuttle (15). In addition, a plurality of groups of diverter arc through holes (26) arranged along the same circumference are provided on the bottom of the diverter expansion cone (25) and the shuttle body of the diverter shuttle (15). An in-shuttle blowing channel (28) is also provided inside the shuttle body of the diverter shuttle (15), one end of the in-shuttle blowing channel (28) is connected to the molding blowing hole (23) on the mold body (14), and the other end of the in-shuttle blowing channel (28) is connected to the blowing channel on the mold core (18).
4. The efficient and stable liner product production line according to claim 2 is characterized by: The outer wall of the mold core (18) is provided with a molding shrinkage cone (29), one end of the mold core (18) is provided with a shuttle connection portion (30) for connecting to the diverter shuttle (15), the other end of the mold core (18) is connected to the liner blank extrusion port (22) at the end of the die (16), and the core body of the mold core (18) is also provided with an inner core blowing channel (31), one end of the inner core blowing channel (31) is connected to the blowing channel on the diverter shuttle (15), and the other end of the inner core blowing channel (31) is connected to the liner blank extrusion port (22).
5. The efficient and stable liner product production line according to claim 1 is characterized by: The vacuum shaping mold (4) comprises a precooling sleeve (32), the front side of the precooling sleeve (32) is provided with a liner blank inlet (41), the rear side of the precooling sleeve (32) is provided with a fixed sleeve cover (35) for fixing the vacuum shaping mold (4) on the end surface of the water tank, the rear of the fixed sleeve cover (35) is provided with a vacuum sleeve (36), the interior of the vacuum sleeve (36) is provided with a vacuum cavity (37), and the vacuum cavity (37) is connected to the vacuum pump (5) through a vacuum connection hole (38) on the side wall; the vacuum cavity (37) is also provided with a sizing sleeve (39) arranged along the conveying direction of the liner blank, the front end of the sizing sleeve (39) passes through the fixed sleeve cover (35) and is connected to the liner blank inlet (41), the rear end of the sizing sleeve (39) is provided with a liner finished product outlet (42), and the rear part of the sizing sleeve (39) is connected to the end of the vacuum sleeve (36) through a fixed end cover (40).
6. The efficient and stable liner product production line according to claim 5 is characterized by: A cooling cavity (33) is provided inside the pre-cooling sleeve (32). The cooling cavity (33) is connected to the chiller (11) and the water tank (10) via cooling water inlets and outlets (34), respectively. Furthermore, the cooling cavity (33) is also connected to the liner blank inlet (41) on the front side of the pre-cooling sleeve (32).
7. The efficient and stable liner product production line according to claim 5 is characterized by: A liner blank sizing cavity (43) is provided in the middle of the sizing sleeve (39), and a plurality of radially arranged vacuum negative pressure through holes (44) connected to the vacuum cavity (37) are provided on the side wall of the liner blank sizing cavity (43), and a sleeve cover connecting portion (45) is provided at one end of the sizing sleeve (39), and an end cover connecting portion (46) is provided at the other end of the sizing sleeve (39).
8. The efficient and stable liner product production line according to claim 7 is characterized by: The cross-sectional shape of the sizing cavity (43) of the liner blank corresponds to the cross-sectional shape of the liner finished product.
9. The efficient and stable liner product production line according to claim 1 is characterized by: The length of the water tank forming zone (7) of the segmented water tank (6) is 0.5 to 0.8 meters, the length of the water tank cooling zone (8) is 2.4 to 2.8 meters, and the length of the water tank high temperature zone (9) is 1.1 to 1.4 meters.