Twin-screw extruder for pipe extrusion production line

Abstract

The utility model provides a double-screw extruder for a pipe extrusion production line, which belongs to the field of pipe production and comprises a bottom plate, a base arranged on one side of the top of the bottom plate, a fixing plate arranged on one side of the top of the base, and two driving motors arranged on one side of the fixing plate. Output shafts of the two driving motors are connected with one ends of the two extrusion screws through connecting pieces, the side of the fixing plate is connected with the surfaces of one ends of the two extrusion screws through pushing assemblies, and the surfaces of the other ends of the two extrusion screws are arranged in a temperature control machine box. And the other end of the temperature control case is connected with the extrusion pipe through a limiting assembly. According to the device, limitation on the two connecting sleeves and the connecting rod is relieved firstly, the two electric push rods are matched with the two T-shaped blocks to drive the moving plate to move, the moving plate is matched with the two mounting holes to drive the two extrusion screws to move, the two extrusion screws are pushed out of the extrusion processing bin, and the extrusion screws are conveniently and subsequently detached and taken out to complete cleaning.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tubular product production, in particular to a double screw extruder for tubular product extrusion production line. BACKGROUND

[0002] The double screw extruder is developed on the basis of the single screw extruder, has the characteristics of good feeding performance, mixing plasticizing performance, exhaust performance and extrusion stability, and has been widely applied to the forming processing of extruded products. According to the application No. The extruder has the following defects in actual use: the extruder is inconvenient to disassemble the double screw and the structure after production for impurity cleaning, lacks a structure for assisting disassembly, and therefore a double screw extruder for tubular product extrusion production line with high practicality needs to be designed. SUMMARY

[0003] The utility model discloses a double screw extruder for tubular product extrusion production line, which solves the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double screw extruder for tubular product extrusion production line, comprising a bottom plate, one side of the top of the bottom plate is provided with a base, one side of the top of the base is provided with a fixed plate, one side of the fixed plate is provided with two drive motors, the output shafts of the two drive motors are connected with one end of two extrusion screws through connecting pieces, the side of the fixed plate is connected with the surface of one end of the two extrusion screws through a pushing assembly, the surface of the other end of the two extrusion screws is arranged in a temperature control machine box, the other end of the temperature control machine box is connected with an extrusion pipe through a limiting assembly.

[0005] The pushing assembly includes a mounting seat mounted on the side of the fixed plate, T-shaped grooves are formed in the inner walls of the two T-shaped grooves, an electric push rod is arranged on one side of the inner wall of each T-shaped groove, a T-shaped block is fixedly connected to the telescopic end of each electric push rod, the opposite side of each T-shaped block is fixedly connected to the two ends of a moving plate, two mounting holes are formed in the surface of the moving plate, the inner walls of the two mounting holes are movably connected to one end of two extrusion screws, a connecting rod is arranged on one end of each extrusion screw, the surface of the other end of each connecting rod is rotatably connected to the inner wall of each mounting hole, and the surface of each extrusion screw is rotatably connected to the other side of the inner wall of the mounting seat.

[0006] The limiting assembly includes two fixed seats mounted on the surfaces of the other end of the temperature control cabinet, the inner wall of one of the fixed seats is rotatably connected to the connecting block at one end of a limiting plate through a fixed shaft, a clamping groove is formed in the surface of the limiting plate, the inner wall of the clamping groove is clampedly connected to the surface of an extrusion pipe, a fixed block is arranged at the other end of the limiting plate, two fixed holes are formed in the surface of the fixed block, and the inner walls of the two fixed holes are screw-connected to the two hole grooves formed in the inner wall of the other fixed seat through fixed pins.

[0007] As a preferred scheme of the utility model, the two connecting pieces each include a connecting sleeve fixedly connected to the output shaft of the two driving motors, the inner walls of the two connecting sleeves are clampedly connected to the surfaces of the two connecting rods, limiting holes are formed in the surfaces of the two connecting sleeves, and the inner walls of the two limiting holes are screw-connected to the positioning holes formed in the surfaces of the two connecting rods through limiting pins.

[0008] As a preferred scheme of the utility model, the inside of the temperature control cabinet is provided with an extrusion processing bin, the two extrusion screws are arranged in the extrusion processing bin, one end of the extrusion processing bin is fixed to one side of the inner wall of the temperature control cabinet, the other end of the extrusion processing bin is butted to one side of the limiting plate, and one side of the top of the extrusion processing bin is connected with the bottom of the feeding hopper in a penetrating mode.

[0009] As a preferred scheme of the utility model, one end of the temperature control cabinet is provided with two second penetrating holes, the inner walls of the two second penetrating holes are penetratingly connected to the surfaces of the two extrusion screws, and the edges of the inner walls of the two second penetrating holes are mountedly connected to the edges of the inner walls of the two first penetrating holes through sealing sleeves.

[0010] As a preferred scheme of the utility model, the surface of one end of the extrusion pipe is respectively provided with two rotating grooves and an extrusion hole, and the inner walls of the two rotating grooves are rotatably connected to the surfaces of the other ends of the two extrusion screws.

[0011] As an optimal scheme of the utility model: two groups of guide rods provided with two ends of the T-shaped block and the inner wall of two T-shaped grooves are connected.

[0012] As an optimal scheme of the utility model: the side of the mounting seat is provided with a control panel, and the driving motor and the electric push rod are electrically connected with the external power supply through the control panel.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) by separating the two fixed pins from the two fixed holes and the hole groove, the restriction on the fixed block and the fixed seat is removed, the connecting block at one end of the limiting plate is rotated on the surface of the fixed shaft by the fixed block, the limiting plate is separated from the temperature control case, and the extrusion pipe is moved to separate the end surface of the two rotating grooves from the two extrusion screws, thereby removing the limitation on the two extrusion screws;

[0015] (2) by separating the two limiting pins from the two limiting holes and the positioning hole, the restriction on the two connecting sleeves and the connecting rod is removed, the two T-shaped blocks are moved on the surface of the two groups of guide rods in the two T-shaped grooves by the two electric push rods, the two T-shaped blocks drive the moving plate to move, the moving plate cooperates with the two mounting holes to drive the two extrusion screws to move in the two first through holes, the sealing sleeve and the second through hole, and the two extrusion screws are pushed out of the extrusion processing bin, thereby facilitating subsequent disassembly and removal for cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is one of the structural schematic views of the utility model;

[0018] Figure 3 It is a structural schematic view of the utility model;

[0019] Figure 4 It is a structural schematic view of the utility model;

[0020] Figure 5 It is a structural schematic view of the utility model.

[0021] In the figure: 1, the bottom plate; 11, the base; 12, the fixed plate; 13, the drive motor; 14, the connecting piece; 141, the connecting sleeve; 142, the limiting hole; 143, the limiting pin; 15, the extrusion screw; 16, the temperature control machine box; 17, the extrusion pipe; 171, the rotating groove; 172, the extrusion hole; 18, the connecting rod; 19, the positioning hole; 110, the extrusion processing bin; 111, the feeding hopper; 112, the second through hole; 113, the sealing sleeve; 2, the pushing assembly; 21, the mounting seat; 22, the T-shaped groove; 23, the electric push rod; 24, the T-shaped block; 25, the moving plate; 26, the mounting hole; 27, the rotating hole; 28, the first through hole; 29, the guide rod; 210, the control panel; 3, the limiting assembly; 31, the fixed seat; 32, the fixed shaft; 33, the limiting plate; 34, the connecting block; 35, the fixed block; 36, the fixed hole; 37, the fixed pin; 38, the hole groove. DETAILED DESCRIPTION

[0022] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-5 A double-screw extruder for a pipe extrusion production line, comprising a bottom plate 1, one side of the top of the bottom plate 1 is provided with a base 11, one side of the top of the base 11 is provided with a fixed plate 12, one side of the fixed plate 12 is provided with two drive motors 13, the output shafts of the two drive motors 13 are both connected with one end of two extrusion screws 15 through connecting pieces 14, the side of the fixed plate 12 is connected with the surface of one end of the two extrusion screws 15 through a pushing assembly 2, the surface of the other end of the two extrusion screws 15 is arranged in a temperature control machine box 16, the other end of the temperature control machine box 16 is connected with an extrusion pipe 17 through a limiting assembly 3;

[0024] Please refer to Figure 3 , Figure 4The pushing assembly 2 comprises a mounting seat 21 mounted on the side of the fixed plate 12, T-shaped grooves 22 are formed on the inner walls of the mounting seat 21 on both sides, an electric push rod 23 is arranged on one side of the inner wall of each T-shaped groove 22, a T-shaped block 24 is fixedly connected to the extension end of each electric push rod 23, the opposite side of each T-shaped block 24 is fixedly connected to the two ends of a moving plate 25, two mounting holes 26 are formed on the surface of the moving plate 25, the inner walls of the two mounting holes 26 are movably clamped with one end of the two extrusion screws 15, a connecting rod 18 is arranged on one end of each extrusion screw 15, a rotating hole 27 is formed on the surface of the other end of each connecting rod 18, and the surface of the other end of each connecting rod 18 is rotatably connected with the inner wall of each mounting hole 26. The surface of each extrusion screw 15 is rotatably connected with two first penetrating holes 28 formed on the other side of the inner wall of the mounting seat 21.

[0025] In specific use, the two limiting pins 143 are separated from the two limiting holes 142 and the positioning hole 19, the restriction on the two connecting sleeves 141 and the connecting rods 18 is removed, the two electric push rods 23 drive the two T-shaped blocks 24 to move on the surfaces of the two groups of guide rods 29 in the two T-shaped grooves 22, the two T-shaped blocks 24 drive the moving plate 25 to move, and the moving plate 25 drives the two extrusion screws 15 to move in the two first penetrating holes 28, the sealing sleeve 113 and the second penetrating hole 112 in cooperation with the two mounting holes 26, the two extrusion screws 15 are pushed out of the extrusion processing bin 110, and it is convenient to disassemble and take out them for cleaning.

[0026] Please refer to Figure 5 The limiting assembly 3 comprises two fixed seats 31 mounted on the surfaces of the other end of the temperature control cabinet 16 on both sides, the inner wall of one of the fixed seats 31 is rotatably connected with the connecting block 34 at one end of a limiting plate 33 through a fixed shaft 32, a clamping groove is formed on the surface of the limiting plate 33, the inner wall of the clamping groove is clamped and connected with the surface of the extrusion pipe 17, the other end of the limiting plate 33 is provided with a fixed block 35, two fixed holes 36 are formed on the surface of the fixed block 35, and the inner walls of the two fixed holes 36 are threadedly connected with two hole grooves 38 formed on the inner wall of the other fixed seat 31 through fixed pins 37.

[0027] In specific use, the two fixed pins 37 are separated from the two fixed holes 36 and the hole grooves 38, the restriction on the fixed block 35 and the fixed seat 31 is removed, the connecting block 34 at one end of the limiting plate 33 is driven to rotate on the surface of the fixed shaft 32 by using the fixed block 35, the limiting plate 33 is separated from the temperature control cabinet 16, the extrusion pipe 17 is driven to move, the two rotating grooves 171 are separated from the end faces of the two extrusion screws 15, and the limitation on the two extrusion screws 15 is removed.

[0028] Please refer to Figure 3The two connecting pieces 14 each include a connecting sleeve 141 fixedly connected with the output shaft of the two driving motors 13, the inner wall of the two connecting sleeves 141 is clampedly connected with the surface of the two connecting rods 18, the surface of the two connecting sleeves 141 is provided with a limiting hole 142, and the inner wall of the two limiting holes 142 is threadedly connected with the positioning hole 19 provided on the surface of the two connecting rods 18 through a limiting pin 143.

[0029] In specific use, the two limiting pins 143 are inserted into the two limiting holes 142 and the positioning hole 19, so that the two connecting rods 18 are fixedly limited with the two connecting sleeves 141, and the two driving motors 13 can normally drive the two extrusion screws 15 to rotate.

[0030] Please refer to Figure 2 The inside of the temperature control box 16 is provided with an extrusion processing bin 110, the two extrusion screws 15 are arranged in the extrusion processing bin 110, one end of the extrusion processing bin 110 is fixedly connected with one side of the inner wall of the temperature control box 16, the other end of the extrusion processing bin 110 is butted with one side of the limiting plate 33, and one side of the top of the extrusion processing bin 110 is connected with the bottom of the feeding hopper 111 in a penetrating manner.

[0031] In specific use, the two extrusion screws 15 rotate in the extrusion processing bin 110, and cooperate with the temperature control box 16 to perform plasticizing processing on the raw materials entering the inside, so that pipe production can be conveniently performed.

[0032] Please refer to Figure 2 、 Figure 3 One end of the temperature control box 16 is provided with two second penetrating holes 112, the inner wall of the two second penetrating holes 112 is penetratingly connected with the surface of the two extrusion screws 15, and the edge of the inner wall of the two second penetrating holes 112 is mounted and connected with the edge of the inner wall of the two first penetrating holes 28 through a sealing sleeve 113.

[0033] In specific use, the two extrusion screws 15 move in the two first penetrating holes 112, the second penetrating holes 28 and the sealing sleeve 113, so that the sealing property of the structure connection can be facilitated, and the raw materials can be prevented from overflowing in the moving process.

[0034] Please refer to Figure 5 The surface of one end of the extrusion pipe 17 is provided with two rotating grooves 171 and an extrusion hole 172, respectively, and the inner wall of the two rotating grooves 171 is rotationally connected with the surface of the other end of the two extrusion screws 15.

[0035] In specific use, the two rotating grooves 171 on the end surface of the extrusion pipe 17 are rotationally connected with the end surface of the two extrusion screws 15, so that the normal rotation of the two extrusion screws 15 can be assisted and limited.

[0036] Please refer to Figure 3Two ends of the two T-shaped blocks 24 are connected with two groups of guide rods 29 arranged on the inner walls of the two T-shaped grooves 22.

[0037] In use, the two T-shaped blocks 24 move on the surfaces of the two groups of guide rods 29 arranged on the inner walls of the two T-shaped grooves 22, so as to limit the movement of the moving plate 25.

[0038] Please refer to Figure 3 The side of the mounting seat 21 is provided with a control panel 210, and the driving motor 13 and the electric push rod 23 are electrically connected with the external power supply through the control panel 210.

[0039] In use, the driving motor 13 and the electric push rod 23 are controlled by the control panel 210, so as to drive the extrusion screw 15 to rotate and facilitate the auxiliary disassembly.

[0040] In use, the two fixing pins 37 are separated from the two fixing holes 36 and the hole groove 38, the fixing block 35 and the fixing seat 31 are released, the connecting block 34 at one end of the limiting plate 33 is driven by the fixing block 35 to rotate on the surface of the fixing shaft 32, the limiting plate 33 is separated from the temperature control cabinet 16, the extrusion pipe 17 is moved to separate the two rotating grooves 171 from the end surfaces of the two extrusion screws 15, and the two extrusion screws 15 are released; the two limiting pins 143 are separated from the two limiting holes 142 and the positioning hole 19, the two connecting sleeves 141 and the connecting rod 18 are released, the two T-shaped blocks 24 move on the surfaces of the two groups of guide rods 29 in the two T-shaped grooves 22, the moving plate 25 is moved by the two T-shaped blocks 24, the two extrusion screws 15 are moved in the two first through holes 28, the sealing sleeve 113 and the second through hole 112 by the moving plate 25 cooperating with the two mounting holes 26, the two extrusion screws 15 are pushed out of the extrusion processing bin 110, and the subsequent disassembly and removal for cleaning are facilitated.

[0041] The contents not described in detail in the description belong to the prior art known by the person skilled in the art, although the utility model has been described in detail with reference to the foregoing embodiments, the person skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A twin-screw extruder for pipe extrusion production line, characterized by, The utility model provides a kind of extrusion pipe temperature control device, including bottom plate (1), the one side of the top of bottom plate (1) is equipped with pedestal (11), the one side of the top of pedestal (11) is equipped with fixed plate (12), the one side of fixed plate (12) is equipped with two drive motors (13), the output shaft of two drive motors (13) is connected with the one end of two extrusion screws (15) by connecting piece (14) and is installed, the edge side of fixed plate (12) is connected with the surface of the one end of two extrusion screws (15) by push assembly (2), the surface of the other end of two extrusion screws (15) is arranged in temperature control cabinet (16), the other end of temperature control cabinet (16) is connected with extrusion pipe (17) by limiting assembly (3); The push assembly (2) includes a mounting seat (21) mounted on the edge side of the fixed plate (12), T-shaped grooves (22) are formed on the inner walls of both sides of the mounting seat (21), an electric push rod (23) is arranged on one side of the inner walls of both T-shaped grooves (22), T-shaped blocks (24) are fixedly connected to the telescopic ends of both electric push rods (23), and the opposite sides of both T-shaped blocks (24) are fixedly connected to both ends of a moving plate (25). Two mounting holes (26) are formed on the surface of the moving plate (25), the inner walls of both mounting holes (26) are movably clamped with one end of both extrusion screws (15), one end of both extrusion screws (15) is provided with a connecting rod (18), the surfaces of both connecting rods (18) are rotatably connected with the rotating holes (27) formed on the inner walls of both mounting holes (26), and the surfaces of both extrusion screws (15) are rotatably connected with the two first penetrating holes (28) formed on the other side of the inner wall of the mounting seat (21). The limiting assembly (3) includes two fixed seats (31) mounted on the surfaces of both sides of the other end of the temperature control cabinet (16), one end of the limiting plate (33) is rotatably connected to the connecting block (34) of the inner wall of one of the fixed seats (31) through a fixed shaft (32), a clamping groove is formed on the surface of the limiting plate (33), the inner wall of the clamping groove is clampingly connected with the surface of the extrusion pipe (17), the other end of the limiting plate (33) is provided with a fixed block (35), two fixed holes (36) are formed on the surface of the fixed block (35), and the inner walls of both fixed holes (36) are screw-connected with the two hole grooves (38) formed on the inner wall of the other fixed seat (31) through a fixed pin (37).

2. A twin screw extruder for pipe extrusion line according to claim 1, characterized in that: Both connecting pieces (14) include a connecting sleeve (141) fixedly connected with the output shafts of both drive motors (13), the inner walls of both connecting sleeves (141) are clampingly connected with the surfaces of both connecting rods (18), limiting holes (142) are formed on the surfaces of both connecting sleeves (141), and the inner walls of both limiting holes (142) are screw-connected with the positioning holes (19) formed on the surfaces of both connecting rods (18) through limiting pins (143).

3. The twin screw extruder for pipe extrusion line according to claim 1, characterized in that: The inside of the temperature control case (16) is provided with an extrusion processing bin (110), both of the extrusion screws (15) are arranged in the extrusion processing bin (110), one end of the extrusion processing bin (110) is fixed with one side of the inner wall of the temperature control case (16), the other end of the extrusion processing bin (110) is butt jointed with one side of the limiting plate (33), one side of the top of the extrusion processing bin (110) is throughly connected with the bottom of the feeding hopper (111).

4. The twin screw extruder for pipe extrusion line according to claim 1, characterized in that: Two second through holes (112) are arranged in one end of the temperature control case (16), the inner walls of the two second through holes (112) are penetratingly connected with the surfaces of the two extrusion screws (15), the edges of the inner walls of the two second through holes (112) are all mounted and connected with the edges of the inner walls of the two first through holes (28) through the sealing sleeves (113).

5. The twin screw extruder for pipe extrusion line according to claim 1, characterized in that: The surfaces of one end of the extrusion pipes (17) are respectively provided with two rotating grooves (171) and extrusion holes (172), the inner walls of the two rotating grooves (171) are rotationally connected with the surfaces of the other ends of the two extrusion screws (15).

6. A twin screw extruder for pipe extrusion line according to claim 1, characterized in that: The two ends of the two T-shaped blocks (24) are penetratingly connected with the two groups of guide rods (29) arranged on the inner walls of the two T-shaped grooves (22).

7. The twin screw extruder for pipe extrusion line according to claim 1, characterized in that: The side of the mounting seat (21) is provided with a control panel (210), the driving motor (13) and the electric push rod (23) are all electrically connected with the external power supply through the control panel (210).

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