Screw taking-out device for double-screw extruder

Abstract

The utility model relates to a screw taking-out device for a double-screw extruder. The screw taking-out device comprises a base and a screw taking-out device, the connecting piece is arranged on the base in a sliding mode and used for being fixedly connected with the two sets of screw rods; the driving assembly is arranged on the base and connected with the connecting piece so as to drive the connecting piece to linearly move in the horizontal direction; the fixing block is arranged on the base, and the upper end of the fixing block is provided with a first arc-shaped groove used for being matched with the two sets of screw rods; the sliding block is arranged on the base in a sliding mode, the sliding block is located between the fixing block and the connecting piece, and a second arc-shaped groove used for being matched with the two sets of screw rods is formed in the upper end of the sliding block; the extruder screw can be supported through the fixing block and the sliding block in the pulling-out process and after pulling out, the situation that the end, extending outwards, of the screw droops due to the gravity effect, the screw inclines, the screw makes direct rigid friction contact with a machine barrel, abrasion is generated, and the service life of an extruder is affected is avoided, and practicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of extruder maintenance, and in particular to a screw removal device for a twin-screw extruder. Background Art

[0002] At present, in the production process of battery separators, a twin-screw extruder is needed to evenly mix and melt the raw materials, and then extrude the corresponding melt. After that, the extruded melt is cooled, stretched, and other operations are performed according to the dry or wet process.

[0003] In the related art, when the threaded elements in the extruder are broken, foreign objects enter the barrel, or the screw is twisted and deformed as a whole during use, the screw needs to be removed from the barrel for maintenance and replacement. At present, in the actual operation process, the screw is mainly pulled out of the barrel by the cooperation of a puller and manual labor. However, after the screw extends part of the way out of the barrel, since the screw itself is long and bulky, the end of the screw extending outward will sag through the principle of leverage, causing the screw itself to tilt downward. In this way, the screw will not only be at risk of breaking, but the tilted screw will rub against the inner wall of the barrel during movement, which will not only cause the screw to generate greater resistance during movement, affecting the removal efficiency, but also the direct rigid friction contact between the screw and the barrel will cause wear to the screw and the barrel, affecting the service life of the extruder.

[0004] In view of the above problems, a screw removal device for a twin-screw extruder is now designed. Utility Model Content

[0005] An embodiment of the present application provides a screw removal device for a twin-screw extruder to solve the problem in the related art that the screw will tilt and sag during the removal process, which will not only rub against the inner wall of the barrel, easily causing wear to the screw and the barrel, but also there is a risk of the screw breaking.

[0006] In a first aspect, a screw removal device for a twin-screw extruder is provided, comprising:

[0007] Base;

[0008] A connecting piece is slidably arranged on the base to be connected and fixed with the two sets of screw rods;

[0009] A driving assembly, which is arranged on the base and connected to the connecting member to drive the connecting member to move linearly in a horizontal direction;

[0010] A fixing block is arranged on the base, and a first arc-shaped groove for matching with two sets of screw rods is formed at the upper end of the fixing block;

[0011] A slider is slidably arranged on the base, the slider is located between the fixed block and the connecting piece, the upper end of the slider is provided with a second arc groove for cooperating with two sets of screws, the second arc groove corresponds to the first arc groove, the slider is provided with a limiting portion, and the base is provided with a limiting matching portion cooperating with the limiting portion, when the slider moves to the limiting portion and cooperates with the limiting matching portion, the movement of the slider is restricted.

[0012] In some embodiments, the base is provided with two sets of guide rails;

[0013] The connecting member includes a connecting frame, a shackle, a hook, a fixed frame and two groups of first guide sleeves, the two groups of the first guide sleeves are respectively sleeved on the two groups of guide rails and slidably connected thereto, the fixed frame is arranged on the two groups of first guide sleeves, the hook is arranged on the fixed frame, the shackle is sleeved on the hook, the connecting frame includes a T-shaped plate and two groups of bolts, the two groups of the bolts penetrate the T-shaped plate and are slidably connected thereto, the T-shaped plate is provided with a connecting hole, and the shackle passes through the connecting hole.

[0014] In some embodiments, the slider includes a support block and two groups of second guide sleeves, the two groups of second guide sleeves are respectively mounted on the two groups of guide rails and slidably connected thereto, the support block is arranged on the two groups of second guide sleeves, the second arc groove is arranged on the support block, one of the second guide sleeves is provided with a first screw to form a limiting portion, the first screw is threadedly connected to the second guide sleeve, a slot is provided on the guide rail to form a limiting matching portion, the first screw matches the slot, and a first hand wheel is provided on the first screw.

[0015] In some embodiments, the driving assembly includes a motor and a screw rod, the screw rod is rotatably arranged on the base, the screw rod passes through the fixed frame and cooperates with it, and the motor is arranged on the base and connected to one end of the screw rod.

[0016] In some embodiments, an opening of a side of the first arc-shaped groove away from the second arc-shaped groove is arranged in a trumpet shape.

[0017] In some embodiments, surfaces of the first arc-shaped groove and the second arc-shaped groove are both provided with a plastic protective layer.

[0018] In some embodiments, a plurality of universal wheels are provided at the lower end of the base.

[0019] In some embodiments, a plurality of adjustment components are provided at the lower end of the base, and the adjustment components include a matching block, a second screw, a second hand wheel, a connecting block, an articulated seat, a support plate and a connecting shaft. The matching block is arranged on the base, the second screw passes through the matching block and is threadedly connected to the matching block, the second hand wheel is arranged at the upper end of the second screw, the connecting block is rotatably arranged at the lower end of the second screw, the connecting shaft passes through the connecting block and is rotatably connected to the connecting block, the connecting shaft and the second screw are perpendicular to each other, the articulated seat is sleeved on the connecting shaft and is rotatably connected to the connecting shaft, and the support plate is arranged at the lower end of the articulated seat.

[0020] The embodiment of the present application provides a screw removal device for a twin-screw extruder. The present application can support the extruder screw during and after the extraction process through a fixed block and a sliding block, which can not only prevent the outwardly extending end of the screw from drooping due to gravity, causing the screw to tilt, causing direct rigid friction contact between the screw and the barrel to cause wear, thereby affecting the service life of the extruder and even causing the screw to break during the extraction process, but also facilitates the subsequent transportation of the screw by a crane, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of a connector provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the three-dimensional structure of a fixing block provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the three-dimensional structure of a slider provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the three-dimensional structure of the adjustment component provided in an embodiment of the present application.

[0028] In the figure: 1, base; 11, guide rail; 2, connecting piece; 21, connecting frame; 211, T-plate; 212, bolt; 213, connecting hole; 22, shackle; 23, hook; 24, fixing frame; 25, first guide sleeve; 3, driving assembly; 31, motor; 32, screw rod; 4, slider; 40, second arc groove; 41, support block; 42, second guide sleeve; 43, first screw rod; 44, slot; 45, first hand wheel; 5, universal wheel; 6, adjustment assembly; 61, matching block; 62, second screw rod; 63, second hand wheel; 64, connecting block; 65, hinged seat; 66, support plate; 67, connecting shaft; 7, fixing block; 70, first arc groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] An embodiment of the present application provides a screw removal device for a twin-screw extruder, which can solve the problem in the related art that the screw will tilt and sag during the removal process, which will not only rub against the inner wall of the barrel, easily causing wear to the screw and the barrel, but also there is a risk of the screw breaking.

[0031] See also Figure 1-Figure 6 A screw removal device for a twin-screw extruder, comprising: a base 1, a connecting member 2, a driving assembly 3, a fixed block 7 and a slider 4, wherein the connecting member 2 is slidably arranged on the base 1 for connecting and fixing with two sets of screws, the driving assembly 3 is arranged on the base 1 and connected with the connecting member 2 to drive the connecting member 2 to move linearly in a horizontal direction, the fixed block 7 is arranged on the base 1, and a first arc groove 70 for matching with the two sets of screws is opened at the upper end of the fixed block 7;

[0032] The slider 4 is slidably arranged on the base 1, and the slider 4 is located between the fixed block 7 and the connecting member 2. A second arc groove 40 for cooperating with two sets of screws is opened at the upper end of the slider 4, and the second arc groove 40 corresponds to the first arc groove 70. A limiting portion is provided on the slider 4, and a limiting matching portion cooperating with the limiting portion is provided on the base 1. When the slider 4 moves to the limiting portion and the limiting matching portion cooperate, the movement of the slider 4 is restricted;

[0033] In this way, when the two sets of screws in the extruder need to be taken out for maintenance and replacement, the slider 4 can be slid to fit with the fixed block 7, and the limiting part can be matched with the limiting matching part to limit and fix the slider 4, and then the connecting member 2 can be driven to move by the driving component 3 to fit the connecting member 2 with the slider 4, so that the slider 4 and the connecting member 2 move to the initial position;

[0034] Then, the two groups of extruder screws can be connected and fixed through the connecting piece 2, and then the connecting piece 2 can be driven to move through the driving assembly 3, so that the connecting piece 2 is away from the slider 4, so that the extruder screw can be driven to move through the connecting piece 2, so that the extruder screw can be pulled out of the barrel, so that the extruder screw will fall into the first arc groove 70 of the fixed block 7 and the second arc groove 40 on the slider 4 in the process of moving out of the barrel, so that the extruder screw can be supported by the fixed block 7 and the slider 4, and then when the extruder screw is partially pulled out, the limiting part can be made not to cooperate with the limiting matching part, and the limit of the slider 4 can be released, so that when the extruder screw continues to move, it will be pulled to move the slider 4 through friction contact with the slider 4, so that the extruder screw can be supported by the fixed block 7 and the slider 4 during the pulling process, and when the extruder screw is completely pulled out, the connecting piece 2 can be disengaged from the two groups of extruder screws, so that the extruder screw can be supported by the fixed block 7 and the slider 4, so as to facilitate subsequent transportation by the overhead crane;

[0035] In this way, the extruder screw can be supported by the fixed block 7 and the slider 4 during and after the screw is pulled out, thereby preventing the outwardly extending end of the screw from sagging due to gravity, causing the screw to tilt, resulting in direct rigid friction contact between the screw and the barrel and causing wear, thereby affecting the service life of the extruder. At the same time, it can also prevent the screw from breaking during the pulling out process, and the practicability is strong.

[0036] For details, please refer to Figure 3 In this embodiment, two groups of guide rails 11 are provided on the base 1, and the connecting member 2 includes a connecting frame 21, a shackle 22, a hook 23, a fixing frame 24 and two groups of first guide sleeves 25. The two groups of the first guide sleeves 25 are respectively sleeved on the two groups of guide rails 11 and slidably connected thereto. The fixing frame 24 is provided on the two groups of first guide sleeves 25. The hook 23 is provided on the fixing frame 24. The shackle 22 is sleeved on the hook 23. The connecting frame 21 includes a T-shaped plate 211 and two groups of bolts 212. The two groups of the bolts 212 penetrate the T-shaped plate 211 and are slidably connected thereto. The T-shaped plate 211 is provided with a connecting hole 213, and the shackle 22 passes through the connecting hole 213.

[0037] In this way, the guide effect of the sliding connection between the guide rail 11 and the first guide sleeve 25 can limit the moving direction of the fixed frame 24, and the connecting member 2 will tilt in the process of pulling the extruder screw to move, which will affect the life of the extruder;

[0038] In this way, when the extruder screw needs to be connected, the two sets of bolts 212 on the T-plate 211 can be first inserted into the ends of the two sets of extruder screws, and the bolts 212 are connected and fixed to the extruder screws, and then the shackle 22 is passed through the hook 23 and the connecting hole 213 to connect the T-plate 211 and the hook 23 together. In this way, when the fixing frame 24 moves, the extruder screw can be pulled to move by the hook 23, the shackle 22, the T-plate 211 and the two sets of bolts 212. When the extruder screw is completely pulled out, the bolts 212 can be removed from the extruder screw, which is convenient for use.

[0039] See also Figure 4-Figure 5 The slider 4 includes a support block 41 and two groups of second guide sleeves 42. The two groups of second guide sleeves 42 are respectively sleeved on the two groups of guide rails 11 and slidably connected thereto. The support block 41 is arranged on the two groups of second guide sleeves 42. The second arc groove 40 is arranged on the support block 41. One of the second guide sleeves 42 is provided with a first screw 43 to form a limiting portion. The first screw 43 is threadedly connected with the second guide sleeve 42. A slot 44 is opened on the guide rail 11 to form a limiting matching portion. The first screw 43 matches the slot 44. The first screw 43 is provided with a first hand wheel 45.

[0040] In this way, the movement of the support block 41 can be limited by the cooperation and guidance of the guide rail 11 and the second guide sleeve 42, so as to prevent the support block 41 from deviating during the sliding process and affecting the supporting effect of the extruder screw.

[0041] When the support block 41 needs to be fixed, the support block 41 can be moved to make the first screw 43 move to correspond to the slot 44, and then the staff can turn the first hand wheel 45 to drive the first screw 43 to rotate through the first hand wheel 45, so that the threaded connection between the first screw 43 and the second guide sleeve 42 moves and retracts into the slot 44, so that the support block 41 can be limited and fixed by the cooperation of the first screw 43 and the slot 44, so as to avoid the support block 41 from moving when the extruder screw just contacts the support block 41;

[0042] After a portion of the extruder screw is pulled out, if the support block 41 needs to move with the extruder screw, the staff can reverse the first hand wheel 45 to reverse the first screw 43 and pull it out from the slot 44. In this way, the first screw 43 does not cooperate with the slot 44, and the support block 41 can continue to move, so as to support the extruder screw during the movement, thereby ensuring the stability of the extruder screw during the pulling out process, and having strong practicality.

[0043] More specifically, in this embodiment, the driving assembly 3 includes a motor 31 and a screw rod 32, the screw rod 32 is rotatably arranged on the base 1, the screw rod 32 penetrates the fixing frame 24 and cooperates with it, and the motor 31 is arranged on the base 1 and connected to one end of the screw rod 32;

[0044] In this way, when in use, the motor 31 can be used to drive the screw rod 32 to rotate, so that the screw rod 32 drives the fixing frame 24 to move by cooperating with the fixing frame 24, thereby pulling the extruder screw out, which is convenient for use.

[0045] Preferably, the opening of one side of the first arc-shaped groove 70 away from the second arc-shaped groove 40 is arranged in a trumpet shape;

[0046] In this way, when the extruder screw enters the first arc groove 70, friction between the extruder screw and the edge of the fixed block 7 can be avoided, which causes the extruder screw to be unable to smoothly enter the first arc groove 70. In this way, by setting a trumpet-shaped opening, a guiding effect can be played on the extruder screw, so that the extruder screw can smoothly enter the first arc groove 70, which is convenient for use.

[0047] Wherein, the surfaces of the first arc groove 70 and the second arc groove 40 are both provided with a plastic protective layer;

[0048] In this way, when the extruder screw slides on the surface of the first arc groove 70 and the second arc groove 40, it can avoid the extruder screw from directly contacting the fixed block 7 and the support block 41 and causing the extruder screw to be worn. In this way, the extruder screw can be protected during the extraction process, which is highly practical.

[0049] Furthermore, in this embodiment, a plurality of universal wheels 5 are provided at the lower end of the base 1;

[0050] In this way, when in use, the staff can push the device to move through the universal wheels 5 to facilitate the transfer of the device, thereby enhancing the flexibility of the device and making it highly practical.

[0051] See also Figure 6, the lower end of the base 1 is provided with a plurality of adjustment components 6, the adjustment components 6 include a matching block 61, a second screw rod 62, a second hand wheel 63, a connecting block 64, a hinge seat 65, a support plate 66 and a connecting shaft 67, the matching block 61 is arranged on the base 1, the second screw rod 62 passes through the matching block 61 and is threadedly connected thereto, the second hand wheel 63 is arranged at the upper end of the second screw rod 62, the connecting block 64 is rotatably arranged at the lower end of the second screw rod 62, the connecting shaft 67 passes through the connecting block 64 and is rotatably connected thereto, the connecting shaft 67 and the second screw rod 62 are perpendicular to each other, the hinge seat 65 is sleeved on the connecting shaft 67 and is rotatably connected thereto, and the support plate 66 is arranged at the lower end of the hinge seat 65;

[0052] In this way, when the extruder screw needs to be pulled out, when the ground on which the base 1 is placed is uneven, the staff can rotate the corresponding second hand wheel 63 as needed, so that the second hand wheel 63 drives the second screw 62 to rotate, so that the second screw 62 will drive the connecting block 64 to rise and fall through the threaded connection with the matching block 61, so that the connecting block 64 drives the support plate 66 to move up and down through the connecting shaft 67 and the hinge seat 65, so that the base 1 can be kept horizontal by adjusting the height of each support plate 66, so that the extruder screw moves in a straight line when pulled out, and the extruder screw is prevented from tilting during the pulling process, which affects the working efficiency and the service life of the extruder. At the same time, the support plate 66 can be rotated through the rotation connection between the connecting shaft 67 and the hinge seat 65 and the rotation connection between the second screw 62 and the connecting block 64. In this way, when the ground in contact with the support plate 66 is uneven, the support plate 66 can be rotated as much as possible to fit the ground, thereby ensuring the stability of the device and having strong practicality.

[0053] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0054] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0055] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A screw removal device for a twin-screw extruder, characterized in that: It includes: Base (1); A connecting member (2) is slidably disposed on the base (1) and is used to be connected and fixed with the two sets of screw rods; A driving assembly (3) is disposed on the base (1) and connected to the connecting member (2) to drive the connecting member (2) to move linearly in a horizontal direction; A fixing block (7) is arranged on the base (1), and a first arc-shaped groove (70) is provided at the upper end of the fixing block (7) for matching with the two sets of screw rods; A slider (4) is slidably arranged on a base (1), the slider (4) being located between a fixed block (7) and a connecting member (2), a second arc groove (40) for cooperating with two sets of screw rods being provided at an upper end of the slider (4), the second arc groove (40) corresponding to the first arc groove (70), a limiting portion being provided on the slider (4), and a limiting matching portion cooperating with the limiting portion being provided on the base (1), and when the slider (4) moves to the point where the limiting portion and the limiting matching portion cooperate, the movement of the slider (4) is restricted.

2. A screw removal device for a twin-screw extruder as claimed in claim 1, characterized in that: The base (1) is provided with two sets of guide rails (11); The connecting member (2) comprises a connecting frame (21), a shackle (22), a hook (23), a fixing frame (24) and two groups of first guide sleeves (25). The two groups of the first guide sleeves (25) are respectively sleeved on the two groups of guide rails (11) and are slidably connected thereto. The fixing frame (24) is arranged on the two groups of first guide sleeves (25). The hook (23) is arranged on the fixing frame (24). The shackle (22) is sleeved on the hook (23). The connecting frame (21) comprises a T-shaped plate (211) and two groups of bolts (212). The two groups of the bolts (212) penetrate the T-shaped plate (211) and are slidably connected thereto. The T-shaped plate (211) is provided with a connecting hole (213), and the shackle (22) passes through the connecting hole (213).

3. A screw removal device for a twin-screw extruder as claimed in claim 2, characterized in that: The slider (4) comprises a support block (41) and two groups of second guide sleeves (42). The two groups of second guide sleeves (42) are respectively sleeved on the two groups of guide rails (11) and slidably connected thereto. The support block (41) is arranged on the two groups of second guide sleeves (42). The second arc groove (40) is arranged on the support block (41). One of the second guide sleeves (42) is provided with a first screw rod (43) to form a limiting portion. The first screw rod (43) is threadedly connected to the second guide sleeve (42). A clamping groove (44) is provided on the guide rail (11) to form a limiting matching portion. The first screw rod (43) matches the clamping groove (44). The first screw rod (43) is provided with a first hand wheel (45).

4. A screw removal device for a twin-screw extruder as claimed in claim 2, characterized in that: The driving assembly (3) comprises a motor (31) and a screw rod (32), wherein the screw rod (32) is rotatably arranged on the base (1), the screw rod (32) passes through the fixing frame (24) and cooperates therewith, and the motor (31) is arranged on the base (1) and connected to one end of the screw rod (32).

5. A screw removal device for a twin-screw extruder as claimed in claim 1, characterized in that: The opening of one side of the first arc-shaped groove (70) away from the second arc-shaped groove (40) is arranged in a trumpet shape.

6. A screw removal device for a twin-screw extruder as claimed in claim 1, characterized in that: The surfaces of the first arc-shaped groove (70) and the second arc-shaped groove (40) are both provided with a plastic protective layer.

7. A screw removal device for a twin-screw extruder as claimed in claim 1, characterized in that: A plurality of universal wheels (5) are provided at the lower end of the base (1).

8. A screw removal device for a twin-screw extruder as claimed in claim 1, characterized in that: A plurality of adjustment components (6) are provided at the lower end of the base (1), and the adjustment components (6) include a matching block (61), a second screw rod (62), a second hand wheel (63), a connecting block (64), a hinge seat (65), a support plate (66) and a connecting shaft (67). The matching block (61) is provided on the base (1), the second screw rod (62) passes through the matching block (61) and is threadedly connected thereto, the second hand wheel (63) is provided at the upper end of the second screw rod (62), the connecting block (64) is rotatably provided at the lower end of the second screw rod (62), the connecting shaft (67) passes through the connecting block (64) and is rotatably connected thereto, the connecting shaft (67) and the second screw rod (62) are perpendicular to each other, the hinge seat (65) is sleeved on the connecting shaft (67) and is rotatably connected thereto, and the support plate (66) is provided at the lower end of the hinge seat (65).

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