A melt filter capable of replacing filter element without stopping the machine

Abstract

The present application discloses a melt filter for replacing filter elements without stopping the machine, comprising a filter bin, an input pipe, an output pipe, and a pair of filter components, wherein the filter component comprises a rotating table, which is rotatably mounted at the bottom of the filter bin, with an upper cavity provided at the top, a lower cavity provided at the bottom, and an annular groove provided on the circumferential side of the middle portion; a plurality of filter elements, the top ends of which are connected to the upper cavity and are connected to the rotating table through a detachable structure; a pick-and-place shell, which is arranged on the side wall of the filter bin, has an open inner end extending into the filter bin, and has a sealing door panel that can be opened and closed movably mounted in the middle; a partition device, which is used to form a sealed space with the annular groove corresponding to the position of the filter bin and the pick-and-place shell; a driving device, which is used to control the synchronous movement of the detachable structure and the partition device. In daily use, by adopting the above technical scheme, the driving device drives the partition device and the detachable structure to move, so that the part of the annular groove where the filter element to be removed is locked is isolated from the inner cavity of the filter bin, and the fixation of the filter element and the annular groove is released, so that the filter element can be replaced without stopping the machine.

Description

Technical Field

[0001] The invention relates to the field of plastic chemical fiber melt filtration, in particular to a melt filter capable of replacing a filter element without stopping the machine. Background Art

[0002] Melt filter is a device used to filter melt in the plastics, chemical fiber and other industries.

[0003] Melt filters usually use filter screens or filter media. When the high-temperature melt passes through the filter, the impurity particles in it will be intercepted on the filter screen or filter media, so that the pure melt can pass through the filter and enter the subsequent production links.

[0004] Melt filters include candle filters and disc filters. The candle filter looks like a candle and consists of multiple filter units. The melt enters from the outside of the filter and flows out from the center tube after passing through the filter unit. This filter has the characteristics of large filtration area and high filtration accuracy.

[0005] The filter element of the candle filter is fixedly installed on the plate-shaped member, and then the plate-shaped member is placed in the cavity of the filter. The plate-shaped member divides the cavity of the filter into two parts. The high-temperature melt enters the lower cavity of the filter through the pipeline, and after the impurities are filtered by the filter element, it enters the upper cavity of the filter, and then is discharged through the pipeline. The filter element will be blocked by impurities after long-term use, affecting the filtering effect of the high-temperature melt, so it is necessary to remove the upper part of the filter and replace the filter element. This will cause the following two problems:

[0006] 1. The filter needs to be shut down before the filter element can be replaced, which affects the production progress;

[0007] 2. It is very inconvenient to lift the upper part of the filter housing with the help of external equipment. Summary of the invention

[0008] The present invention aims to solve one of the technical problems existing in the prior art.

[0009] The present application provides a melt filter for replacing a filter element without stopping the machine, comprising a filter chamber, an input pipe, an output pipe, and a pair of filter components, wherein the filter components include:

[0010] The rotating table is rotatably mounted at the bottom of the filter bin, with an upper cavity at the top, a lower cavity at the bottom, and an annular groove at the middle periphery;

[0011] A plurality of filter elements are arranged in the annular groove at intervals along the circumferential direction, the top ends of the filter elements are communicated with the upper cavity, and are connected to the rotating table through a detachable structure;

[0012] The access shell is fixed on the side wall of the filter bin, with an inner end open and extending into the filter bin, and a sealing door panel that can be opened and closed is movably installed in the middle;

[0013] A partition device is used to form a sealed space between the annular groove corresponding to the filter bin position and the access shell;

[0014] A driving device is used to control the detachable structure to move synchronously with the partition device.

[0015] The removable structure includes:

[0016] A slot, which is arranged on the top of the annular groove and connected to the upper chamber through the liquid outlet hole;

[0017] A lower hole, which is arranged at the bottom of the annular groove, and in which a lifting sleeve is slidably mounted;

[0018] The lifting plate is installed in the lifting sleeve and is connected to the lifting sleeve through a linkage device;

[0019] Among them, the top and bottom ends of the filter element are inserted into the slot and the lifting sleeve respectively. When the driving device pushes the top end of the filter element out of the slot, the lifting plate and the lifting sleeve descend simultaneously under the action of the linkage device. When the top end of the filter element is separated from the slot, the top surfaces of the lifting plate and the lifting sleeve move to the same horizontal plane, and the bottom end of the filter element is separated from the lifting sleeve.

[0020] The linkage includes:

[0021] A sliding frame is installed in the lower cavity for transverse sliding movement and has a vertical through slot in the middle;

[0022] A pair of inner inclined grooves are symmetrically arranged on the inner side wall of the vertical through groove;

[0023] The upper end of the plug column is fixedly connected to the lifting plate, and the lower end is inserted into the vertical through slot, and is matched with a pair of inner inclined slots through a pair of inner transmission blocks;

[0024] A pair of side plates are symmetrically fixed to the bottom end of the lifting sleeve;

[0025] A pair of external chute grooves are respectively arranged on the inner side of each side plate;

[0026] A pair of external transmission blocks are symmetrically fixed on the outer side wall of the sliding frame and are respectively slidably installed in corresponding external inclined grooves.

[0027] The linkage also includes:

[0028] A fixed plate, which is fixed to the middle of the lower cavity and has a return spring between it and the inner end of the sliding frame;

[0029] The width of each outer inclined groove in the horizontal direction is the same as that of each inner inclined groove, and the height of each outer inclined groove in the vertical direction is twice the height of each inner inclined groove in the vertical direction.

[0030] The partition device includes:

[0031] The transmission chamber is arranged inside the rotating table, and the top end is connected with the upper chamber through a plurality of connecting holes;

[0032] A plurality of side grooves are arranged at intervals along the circumferential direction and connect the annular groove with the transmission cavity;

[0033] A plurality of vertical plates are respectively slidably inserted into the side grooves;

[0034] The inner cylinder is fixed at the center of the transmission cavity, and a plurality of lifting rods are arranged in a floating manner inside the inner cylinder, each lifting rod forming a circular ring shape;

[0035] A plurality of supporting arms, one end of which is hinged to each lifting rod, and the other end of which passes through the inner tube and is hinged to the inner end of the corresponding vertical plate;

[0036] A plurality of tension springs are distributed along the circumferential direction, the inner ends of the tension springs are fixedly connected to the outer circumferential wall of the inner tube, and the outer ends of the tension springs are fixedly connected to the corresponding vertical plates.

[0037] The number of connecting holes is the same as the number of lifting rods and they are staggered. Each connecting hole corresponds to the top end of a pair of lifting rods. The driving device can extend into the connecting hole and simultaneously push the pair of lifting rods corresponding to the pick-and-place shell down. The outer ends of the corresponding pair of side plates extend out and are tightly sealed against the inner end of the pick-and-place shell.

[0038] The drive unit includes:

[0039] A plurality of lifting blocks are movably installed in the upper cavity to form a truncated cone, with a slope facing outwards on the top, and a stop rod is provided at the bottom of each lifting block;

[0040] A plurality of top openings are arranged at intervals on the top of the outer peripheral wall of the rotating table and connected to the upper cavity;

[0041] A plurality of sliding shells are slidably installed in the upper cavity through the top openings, and the inner ends of the sliding shells are fixed with push blocks, and the inner ends of the push blocks are respectively in contact with the slopes of the lifting blocks;

[0042] The pushing component is installed on the outer wall of the filter bin and is located above the pick-and-place shell, and is used to push the sliding shell at the corresponding position to move.

[0043] The drive device also includes:

[0044] A plurality of cross beams are fixedly connected to the top of each filter element;

[0045] A plurality of floating rods are respectively installed at the bottom of each sliding shell by means of a transmission component;

[0046] The pushing component includes a piston rod that can be extended and rotated, and the piston rod provides power for the transmission component to control the lifting and lowering of the corresponding floating rod. When the floating rod descends, it extends into the liquid outlet hole to push the cross beam to make the corresponding filter element descend.

[0047] Transmission components include:

[0048] A rotating shaft, which is rotatably mounted on the outer end of the sliding shell through a ball bearing, and a rotating disk is fixedly connected to the inner end thereof;

[0049] The lifting frame is L-shaped and is installed in the inner cavity of the sliding shell for lifting, and has a transverse groove on the vertical surface;

[0050] An upper transmission block is fixedly connected to the eccentric position of the rotating disc surface and is slidably matched with the transverse groove;

[0051] A pair of upper springs, disposed between the bottom surface of the lifting frame and the bottom of the inner cavity of the sliding shell;

[0052] The floating rod is fixedly connected to the bottom surface of the lifting plate, and the lower end thereof can pass through the sliding shell, and the outer end of the rotating shaft extends out of the sliding shell and is provided with a polygonal groove.

[0053] The push parts include:

[0054] The cylinder is fixedly connected to the outer wall of the filter bin, above the access shell, and its piston rod extends into the upper cavity;

[0055] A sleeve, which is sleeved on the outside of the piston rod and fixedly connected to the inner wall of the upper chamber;

[0056] A pair of rotation transmission grooves are arranged on opposite sides of the sleeve, each including a straight section and a spiral section, and the spiral directions of the spiral sections are the same;

[0057] A pair of rotary transmission blocks are fixedly connected to the piston rod and slidably cooperate with the corresponding rotary transmission grooves;

[0058] The polygonal block is fixedly connected to the outer end of the piston rod and can be inserted into the polygonal groove.

[0059] The beneficial effects of the present invention are as follows:

[0060] 1. Through the setting of a rotating table with an upper cavity, a lower cavity and a ring groove, a number of detachable structures, a take-and-place shell and a partition device, the filter element can be replaced without stopping the machine and disassembling the upper part of the filter housing, which has little impact on production and does not require the use of external equipment to disassemble and assemble the filter element;

[0061] 2. Through the arrangement of the slot, lower hole, lifting sleeve, lifting plate, sliding frame, a pair of inner inclined slots, plug posts, vertical through slots, a pair of side plates, a pair of outer inclined slots, a pair of transmission blocks, a fixing plate and a reset spring, the driving device pushes the filter element down to make it detach from the slot and lifting sleeve, which is convenient for workers to replace;

[0062] 3. Through the arrangement of the transmission cavity, several side grooves, several vertical plates, inner cylinder, several lifting rods, several supporting arms and several tension springs, in coordination with the driving device, a section of the annular groove where the filter element to be replaced is located and the pick-and-place shell form an independent space, so as to prevent the high-temperature melt in the inner cavity of the filter bin from gushing out from the pick-and-place shell when the filter element is replaced, which is convenient for workers to replace the filter element;

[0063] 4. Through the arrangement of several lifting blocks, several abutting rods, several cross beams, several top openings, several sliding shells, several push blocks, several floating rods, transmission components and push components, it is only necessary to push the corresponding sliding shell to move toward the center of the upper cavity, so that the detachable structure at the corresponding position can be controlled to contact and fix the filter element, and at the same time, the part of the annular groove at the corresponding position of the filter element is separated from the inner cavity of the filter bin. The operation logic is simple, and the filter element can be replaced by operating the push component;

[0064] 5. Through the arrangement of the rotating shaft, polygonal groove, turntable, lifting plate, transverse groove, upper transmission block, a pair of upper springs, cylinder, piston, sleeve, a pair of rotating transmission grooves, a pair of rotating transmission blocks and polygonal blocks, only the cylinder is needed to control the extension and retraction of the piston. The piston first slides linearly and then rotates, so that the floating rod drops when corresponding to the liquid outlet hole, thereby realizing the simultaneous driving of the detachable structure and the partition device, thus avoiding the safety hazards caused by misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is a front view of a melt filter for replacing a filter element without stopping the machine in an embodiment of the present application;

[0066] Figure 2 A top view of a melt filter for replacing a filter element without stopping the machine in an embodiment of the present application;

[0067] Figure 3 for Figure 1 Schematic diagram of the cross-section structure in the AA direction;

[0068] Figure 4 This is a schematic diagram of the three-dimensional structure of the filter element assembly in the embodiment of the present application;

[0069] Figure 5 for Figure 4 Schematic diagram of the cross-section structure in the middle BB direction;

[0070] Figure 6 This is a schematic diagram of the three-dimensional structure of the filter element assembly in the embodiment of the present application (without a rotating platform);

[0071] Figure 7 It is a combined stereogram of several lifting sleeves, lifting plates and linkage devices in the embodiment of the present application;

[0072] Figure 8 A three-dimensional diagram showing the internal structure of a single lifting sleeve, a lifting plate and a linkage device in an embodiment of the present application;

[0073] Fig. 9 This is a three-dimensional diagram of the partition device structure in the embodiment of the present application;

[0074] Fig.10 This is a three-dimensional diagram of the transmission component in the embodiment of the present application;

[0075] Fig.11 It is a three-dimensional diagram of the pushing component in the embodiment of the present application.

[0076] Reference numerals

[0077] 1-filter bin, 2-input pipe, 3-output pipe, 4-filter assembly, 41-rotating table, 42-upper chamber, 43-lower chamber, 44-ring groove, 45-filter element, 46-pick-up and put-down shell, 47-sealed door plate, 5-detachable structure, 51-slot, 52-lower hole, 53-lifting sleeve, 54-lifting plate, 55-linkage device, 551-sliding frame, 552-vertical through groove, 553-inner inclined groove, 554-insertion column, 555-inner transmission block, 556-side plate, 557-outer inclined groove, 558-outer transmission block, 559-fixed plate, 5510-reset spring, 6-partition device, 61-transmission chamber, 62-connecting hole, 63-side groove, 6 4-vertical plate, 65-inner cylinder, 66-lifting rod, 67-support arm, 68-tension spring, 7-driving device, 71-lifting block, 72-slope, 73-retaining rod, 74-top opening, 75-sliding shell, 76-pushing block, 77-pushing component, 771-piston rod, 772-cylinder, 773-sleeve, 774-rotating transmission groove, 7741-straight segment, 7742-spiral segment, 775-rotating transmission block, 776-polygonal block, 78-cross beam, 79-floating rod, 8-transmission component, 81-rotating shaft, 82-turntable, 83-lifting frame, 84-transverse groove, 85-upper transmission block, 86-upper spring, 87-polygonal groove. DETAILED DESCRIPTION

[0078] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0079] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0080] The melt filter for replacing the filter element without stopping the machine provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0081] Embodiment 1:

[0082] like Figures 1 to 6 As shown, the embodiment of the present application provides a melt filter for replacing filter elements without stopping the machine, including a filter bin 1, an input pipe 2, an output pipe 3, and a pair of filter components 4, the filter component 4 including a rotating table 41, which is rotatably installed at the bottom of the filter bin 1, with an upper cavity 42 on the top, a lower cavity 43 on the bottom, and an annular groove 44 on the middle circumferential side; a plurality of filter elements 45 are arranged in the annular groove 44 at intervals along the circumferential direction, with the top end connected to the upper cavity 42 and connected to the rotating table 41 through a detachable structure 5; a pick-and-place shell 46, which is fixed on the side wall of the filter bin 1, with the inner end open and extending into the filter bin 1, and a sealing door panel 47 that can be opened and closed is movably installed in the middle; a partition device 6, used to form a sealed space with the annular groove 44 corresponding to the position of the filter bin 1 and the pick-and-place shell 46; a driving device 7, which is used to control the synchronous action of the detachable structure 5 and the partition device 6.

[0083] Furthermore, the detachable structure 5 includes a slot 51, which is arranged at the top of the annular groove 44 and connected to the upper chamber 42 through the liquid outlet; a lower hole 52, which is arranged at the bottom of the annular groove 44, in which a lifting sleeve 53 is slidably installed; a lifting plate 54, which is lifted and installed in the lifting sleeve 53, and is transmission-connected with the lifting sleeve 53 through a linkage device 55. The top and bottom ends of the filter element 45 are respectively inserted into the slot 51 and the lifting sleeve 53. When the driving device 7 pushes the top end of the filter element 45 out of the slot 51, the lifting plate 54 and the lifting sleeve 53 descend at the same time under the action of the linkage device 55. When the top end of the filter element 45 is separated from the slot 51, the top surfaces of the lifting plate 54 and the lifting sleeve 53 move to the same horizontal plane, and the bottom end of the filter element 45 is separated from the lifting sleeve 53.

[0084] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the high-temperature melt enters the interior of the filter bin 1 from the input pipe 2, and after being filtered by each filter element 45, enters the upper chamber 42 from the inner cavity of each filter element 45 through each slot 51 and the liquid outlet hole, and is then discharged from the output pipe 3 to complete the filtration of the high-temperature melt. When the filter element 45 needs to be replaced, the drive device 7 is actuated to control the partition device 6 to isolate the part of the annular groove 44 corresponding to the position of the pick-up and release shell 46 from the inner cavity of the filter bin 1, so that this section of the annular groove 44 and the pick-up and release shell 46 form a sealed space, and at the same time, the filter element 45 in the sealed space is pushed down, and the lifting plate 54 and the filter element 45 are lowered at the same time, and the linkage device 55 is actuated to make the lifting sleeve 53 and the lifting plate 54 descend together until the top surface of the lifting sleeve 53 and the upper surface of the lifting plate 54 are at the same level. At this time The top of the filter element 45 also detaches from the slot 51. The worker places a container under the pick-and-place shell 46 in advance, and then uses a rod-shaped tool to pull open the sealing door plate 47. The high-temperature melt remaining in the sealed space flows out and falls into the container placed in advance. The worker then removes the filter element 45, places a new filter element 45 on the top of the lifting plate 54, and aligns the top with the slot 51, then closes the sealing door plate 47, controls the drive device 7 to operate, and allows the partition device 6 to release the partition of the ring groove 44 corresponding to the position of the pick-and-place shell 46. At the same time, the filter element 45 rises, the top is inserted into the slot 51, and the bottom is sleeved in the lifting sleeve 53. When the next filter element 45 needs to be replaced, the motor controls the rotation of the rotating table 41 to move the next filter element 45 to the position corresponding to the pick-and-place shell 46, and then repeats the above operations. The motor is installed at the bottom of the rotating table 41.

[0085] Embodiment 2:

[0086] like Figures 7 and 8 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the linkage device 55 includes a sliding frame 551, which is laterally slidably installed in the lower cavity 43 and has a vertical through groove 552 in the middle; a pair of inner oblique grooves 553, symmetrically arranged on the inner side wall of the vertical through groove 552; a plug 554, the upper end of which is fixedly connected to the lifting plate 54, and the lower end is inserted into the vertical through groove 552, and is transmitted and matched with the pair of inner oblique grooves 553 through a pair of inner transmission blocks 555; a pair of side plates 556, symmetrically fixedly connected to the bottom end of the lifting sleeve 53; a pair of outer oblique grooves 557, respectively arranged on the inner side of each side plate 556; a pair of outer transmission blocks 558, symmetrically fixedly connected to the outer side wall of the sliding frame 551, and respectively slidably installed in the corresponding outer oblique grooves 557.

[0087] Furthermore, the linkage device 55 also includes a fixed plate 559, which is fixedly connected to the middle part of the lower cavity 43 and a return spring 5510 is provided between the inner end of the sliding frame 551. The horizontal width of each outer bevel groove 557 is the same as that of each inner bevel groove 553, and the vertical height of each outer bevel groove 557 is twice the vertical height of each inner bevel groove 553.

[0088] In this embodiment of the present application, due to the adoption of the above-mentioned structure, during the process of the lifting plate 54 descending in the lifting sleeve 53, the plug post 554 penetrates into the vertical through groove 552, and the inner transmission block 555 slides from the upper end of the inner inclined groove 553 to the lower end of the inner inclined groove 553. This process pushes the sliding frame 551 to slide toward the center of the lower cavity 43, and the return spring 5510 is compressed and shortened. At the same time, the outer transmission block 558 slides from the lower end to the upper end of the outer inclined groove 557, driving a pair of side plates 556 to connect the lifting sleeve 53 to descend, and the vertical height between the two ends of the outer inclined groove 557 is reduced. The difference is greater than the vertical height difference between the two ends of the inner chute 553, but the distance between the two ends of the outer chute 557 in the horizontal direction is the same as the distance between the two ends of the inner chute 553 in the horizontal direction. Therefore, the lifting speed of the lifting sleeve 53 is greater than the lifting speed of the lifting plate 54. When the lifting sleeve 53 and the lifting plate 54 are both at the lowest position, the top of the lifting sleeve 53 and the top surface of the lifting plate 54 are at the same horizontal height. When the lifting sleeve 53 and the lifting plate 54 are both at the highest position, the lifting plate 54 is located in the lifting sleeve 53, so that the bottom of the filter element 45 is fixed.

[0089] When the driving device 7 releases the pressure on the top of the filter element 45, the return spring 5510 releases its elastic potential energy, pushing the sliding frame 551 away from the center position of the lower chamber 43, and each inner transmission block 555 slides from the lower end of each inner inclined groove 553 to the upper end, so that the plug post 554 and the lifting plate 54 rise, and each outer transmission block 558 slides from the upper end of each outer inclined groove 557 to the lower end, pushing a pair of side plates 556 and the lifting sleeve 53 to rise. When the top end of the filter element 45 is inserted into the slot 51, the bottom end of the filter element 45 abuts against the top surface of the lifting plate 54, and the bottom peripheral side of the filter element 45 has entered the lifting sleeve 53, achieving complete fixation;

[0090] When the filter element 45 on the top of the lifting plate 54 is removed, the lifting plate 54 and the lifting sleeve 53 will also rise. When installing the filter element 45, it is only necessary to use the bottom of the filter element 45 to push the lifting sleeve 53 downward. Under the cooperation of the inner inclined grooves 553, the inner transmission blocks 555, the outer inclined grooves 557 and the outer transmission blocks 558, the lifting plate 54 will also descend, and then the filter element 45 will be vertically placed between the top of the lifting plate 54 and the driving device 7.

[0091] Embodiment 3:

[0092] like Figure 5 and Fig. 9As shown, in the present embodiment, in addition to the structural features of the aforementioned embodiments, the partition device 6 includes a transmission chamber 61, which is arranged inside the rotating table 41, and the top end is connected to the upper chamber 42 through a plurality of connecting holes 62; a plurality of side grooves 63, which are arranged at intervals along the circumference, connecting the annular groove 44 and the transmission chamber 61; a plurality of vertical plates 64, which are respectively slidably inserted in each side groove 63; an inner cylinder 65, which is fixedly connected to the center position of the transmission chamber 61, and a plurality of lifting rods 66 are floatingly arranged inside, and each lifting rod 66 forms a circular ring shape; a plurality of support arms 67, one end of which is hinged to each lifting rod 66, and the other end passes through the inner cylinder 65 and is hinged to the inner end of the corresponding vertical plate 64; a plurality of tension springs 68 are distributed along the circumference, the inner end is fixedly connected to the outer peripheral wall of the inner cylinder 65, and the outer end is fixedly connected to the corresponding vertical plate 64.

[0093] Preferably, the number of connecting holes 62 is the same as the number of lifting rods 66 and they are staggered. Each connecting hole 62 corresponds to the top end of a pair of lifting rods 66. The driving device 7 can extend into the connecting hole 62 and simultaneously push the pair of lifting rods 66 corresponding to the picking and placing shell 46 down. The outer ends of the corresponding pair of side panels 556 extend out and are tightly sealed against the inner end of the picking and placing shell 46.

[0094] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the inner ends of the top side wall and the bottom side wall of the pick-and-place shell 46 are kept in contact with the outer peripheral wall of the rotating table 41 at any time, and the driving device 7 pushes the pair of lifting rods 66 corresponding to the pick-and-place shell 46 in the inner cylinder 65 through the connecting hole 62, so that the corresponding support arm 67 pushes the outer ends of the corresponding side plates 556 to extend outward and press against the inner ends of the two side walls of the pick-and-place shell 46, and each tension spring 68 is stretched, and the section of the ring groove 44 corresponding to the pick-and-place shell 46 is no longer connected to the inner cavity of the filter bin 1, but is connected to the inner cavity of the pick-and-place shell 46. When it is necessary to retract these vertical plates 64 and make the section of the ring groove 44 corresponding to the pick-and-place shell 46 be connected to the inner cavity of the filter bin 1 again, the driving device 7 releases the pressure on the top of the corresponding lifting rod 66, and each tension spring 68 is shortened, pulling each vertical plate 64 to retract and away from the pick-and-place shell 46, and each lifting rod 66 rises to the top and abuts against the top of the transmission cavity 61;

[0095] The inner tube 65 has slots on its circumference for the arms 67 to extend out.

[0096] Embodiment 4:

[0097] like Figures 5 and 6As shown, in the present embodiment, in addition to the structural features of the aforementioned embodiments, the driving device 7 includes a plurality of lifting blocks 71, which are movably installed in the upper cavity 42 to form a truncated cone shape, and a slope 72 facing outward is provided on the top, and each lifting block 71 has a push rod 73 at the bottom; a plurality of top openings 74, which are arranged at intervals on the top of the outer peripheral wall of the rotating table 41 and connected to the upper cavity 42; a plurality of sliding shells 75, which are slidably installed in the upper cavity 42 through each top opening 74, and a push block 76 is fixed at the inner end, and the inner end of each push block 76 is respectively abutted against the slope 72 of each lifting block 71; a pushing component 77, which is installed on the outer wall of the filter bin 1, located above the pick-up and place shell 46, and is used to push the sliding shell 75 at the corresponding position to move.

[0098] Furthermore, the driving device 7 also includes a plurality of cross beams 78, which are respectively fixed to the top of each filter element 45; a plurality of floating rods 79 are respectively installed at the bottom of each sliding shell 75 through the transmission component 8 for lifting and lowering. The pushing component 77 includes a piston rod 771 that can be extended and rotated. The piston rod 771 provides power for the transmission component 8 to control the lifting and lowering of the corresponding floating rod 79. When the floating rod 79 descends, it extends into the liquid outlet to push the cross beam 78 to make the corresponding filter element 45 descend.

[0099] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the push device is actuated to push the sliding shell 75 at the position corresponding to the pick-and-place shell 46 to slide into the upper cavity 42, so that the push block 76 cooperates with the slope 72 at the top of the lifting block 71, pushing the lifting block 71 together with the push rod 73 to descend, so that the pair of lifting rods 66 corresponding to the pick-and-place shell 46 are lowered at this time, so that the corresponding support arm 67 pushes the outer end of the corresponding side plate 556 to extend outward and press against the inner ends of the two side walls of the pick-and-place shell 46, and the sliding shell 75 slides to the slot. The liquid outlet hole is gradually blocked. During this process, when the floating rod 79 moves to the side corresponding to the liquid outlet hole, the transmission component 8 drives the floating rod 79 to extend toward the bottom of the sliding shell 75, passes through the liquid outlet hole and enters the slot 51, abuts against the cross beam 78 at the top of the filter element 45, and pushes the top of the filter element 45 out of the slot 51. When the top of the filter element 45 is completely out of the slot 51, the bottom surface of the sliding shell 75 also completely overlaps with the liquid outlet hole, completely blocking the liquid outlet hole, preventing the high-temperature melt in the upper chamber 42 from overflowing from the liquid outlet hole and scalding the workers;

[0100] When the piston rod 771 withdraws, each tension spring 68 resets and pushes the lifting rod 66 upward through each support arm 67. The rising lifting rod 66 pushes the support rod 73 and the lifting block 71 to rise. The slope 72 on the top of the rising lifting block 71 pushes the corresponding push block 76 and the sliding shell 75 away from the center of the upper chamber 42 to achieve reset.

[0101] The inner side of each top opening 74 is connected with an extension portion, so that when the sliding shell 75 moves into the upper cavity 42, the unfiltered high-temperature melt cannot enter the upper cavity 42 through the top opening 74 to contaminate the filtered high-temperature melt.

[0102] Embodiment 5:

[0103] like Figure 10 to Figure 11 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the transmission component 8 includes a rotating shaft 81, which is rotatably mounted on the outer end of the sliding shell 75 through a ball bearing, and a turntable 82 is fixedly connected to its inner end; a lifting frame 83, which is L-shaped and is lifted and mounted in the inner cavity of the sliding shell 75, and has a transverse groove 84 on the vertical surface; an upper transmission block 85, which is fixed to the eccentric part of the surface of the turntable 82 and slides with the transverse groove 84; a pair of upper springs 86, which are arranged between the bottom surface of the lifting frame 83 and the bottom of the inner cavity of the sliding shell 75, and the floating rod 79 is fixed to the bottom surface of the lifting plate 54, and the lower end can pass through the outside of the sliding shell 75, and the outer end of the rotating shaft 81 extends out of the sliding shell 75 and has a polygonal groove 87.

[0104] Furthermore, the pushing component 77 includes a cylinder 772, which is fixedly connected to the outer wall of the filter bin 1, above the access shell 46, and its piston rod 771 extends into the upper cavity 42; a sleeve 773, which is sleeved on the outside of the piston rod 771 and fixedly connected to the inner wall of the upper cavity 42; a pair of rotation transmission grooves 774, which are arranged on opposite sides of the sleeve 773, and both include a straight section 7741 and a spiral section 7742, and the spiral directions of the spiral sections 7742 are the same; a pair of rotation transmission blocks 775, which are fixedly connected to the piston rod 771 and slidingly cooperate with the corresponding rotation transmission grooves 774; a polygonal block 776, which is fixedly connected to the outer end of the piston rod 771 and can be inserted into the polygonal groove 87.

[0105] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the cylinder 772 is actuated, its piston rod 771 extends, and a pair of upper transmission blocks 85 move from the straight section 7741 in the corresponding rotating transmission groove 774 to the spiral section 7742. During this process, the polygonal block 776 at the outer end of the piston rod 771 is inserted into the polygonal groove 87 at the outer end of the rotating shaft 81, and pushes the sliding shell 75 to slide above the liquid outlet, and then each upper transmission block 85 enters the spiral section 7742 of the rotating transmission groove 774 and moves to the end of the spiral section 7742. During this process, the piston rod 771 continues to extend and rotates at the same time, driving the rotating shaft 81, the rotating disk 82 and the upper transmission block 85 to rotate, and cooperates with the cross groove 84 to push the lifting frame 83 to descend, and a pair of upper springs 86 are compressed and shortened, so that the lower end of the floating rod 79 extends into the liquid outlet, pushing the cross beam 78 and the filter element 45 to descend and move to the other end of the liquid outlet until the bottom surface of the floating shell completely blocks the outlet. Liquid hole, at this time, the floating rod 79 drops to the lowest point and moves to the end of the liquid outlet hole farthest from the cylinder 772, the top of the filter element 45 disengages from the slot 51, and when the piston rod 771 retracts, the rotating shaft 81, the rotating disk 82 and the upper transmission block 85 reverse around the axis of the rotating shaft 81, and a pair of upper springs 86 gradually exert elastic potential energy, and cooperate with the transverse groove 84 to drive the floating rod 79 to rise until it is completely separated from the liquid outlet hole, and the upper transmission block 85 also separates from the spiral section 7742 of the rotating transmission groove 774 and enters the straight section 7741, and continues to withdraw until the polygonal block 776 separates from the polygonal groove 87, and the top of the lifting frame 83 is pressed against the top of the inner cavity of the sliding shell under the pressure of a pair of upper springs 86.

[0106] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes 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 one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0107] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A melt filter for replacing a filter element without stopping the machine, comprising a filter chamber (1), an input pipe (2), an output pipe (3), and a pair of filter components (4). It is characterized in that The filtering component (4) comprises: A rotating table (41) is rotatably mounted on the bottom of the filter bin (1), with an upper cavity (42) provided on the top, a lower cavity (43) provided on the bottom, and an annular groove (44) provided on the circumference of the middle portion; A plurality of filter elements (45) are arranged in the annular groove (44) at intervals along the circumferential direction, the top ends of the filter elements being in communication with the upper chamber (42) and connected to the rotating platform (41) via a detachable structure (5); A take-and-place shell (46) fixedly mounted on the side wall of the filter bin (1), with an inner end open and extending into the filter bin (1), and a sealing door panel (47) movably mounted in the middle that can be opened and closed; A partition device (6) used to enable the annular groove (44) corresponding to the position of the filter bin (1) and the access shell (46) to form a sealed space; A driving device (7) for controlling the detachable structure (5) and the partition device (6) to move synchronously; The detachable structure (5) comprises: A slot (51) disposed at the top of the annular groove (44) and connected to the upper chamber (42) via a liquid outlet hole; A lower hole (52) is arranged at the bottom of the annular groove (44), and a lifting sleeve (53) is slidably mounted therein; A lifting plate (54) is installed in the lifting sleeve (53) and is connected to the lifting sleeve (53) through a linkage device (55); The top and bottom ends of the filter element (45) are respectively inserted into the slot (51) and the lifting sleeve (53); when the driving device (7) pushes the top end of the filter element (45) out of the slot (51), the lifting plate (54) and the lifting sleeve (53) are simultaneously lowered under the action of the linkage device (55); when the top end of the filter element (45) is separated from the slot (51), the top surfaces of the lifting plate (54) and the lifting sleeve (53) move to the same horizontal plane, and the bottom end of the filter element (45) is separated from the lifting sleeve (53); The linkage device (55) comprises: A sliding frame (551) is installed in the lower chamber (43) for transverse sliding movement, and has a vertical through groove (552) in the middle; A pair of inner inclined grooves (553) symmetrically arranged on the inner side walls of the vertical through groove (552); An inserting column (554), the upper end of which is fixedly connected to the lifting plate (54), and the lower end of which is inserted into the vertical through groove (552) and is transmission-matched with a pair of inner inclined grooves (553) through a pair of inner transmission blocks (555); A pair of side plates (556) symmetrically fixed to the bottom end of the lifting sleeve (53); A pair of external inclined grooves (557) are respectively arranged on the inner side of each of the side plates (556); A pair of external transmission blocks (558) are symmetrically fixed to the outer side walls of the sliding frame (551) and are respectively slidably mounted in corresponding external inclined grooves (557); The partition device (6) comprises: A transmission chamber (61) is arranged inside the rotating platform (41), and the top end is connected to the upper chamber (42) through a plurality of connecting holes (62); A plurality of side grooves (63) are arranged at intervals along the circumferential direction and connect the annular groove (44) with the transmission cavity (61); A plurality of vertical plates (64) are respectively slidably inserted into the side grooves (63); An inner cylinder (65) is fixedly connected to the center of the transmission chamber (61), and a plurality of lifting rods (66) are floatingly arranged inside the inner cylinder, each lifting rod (66) forming a circular ring shape; A plurality of supporting arms (67), one end of which is hinged to each lifting rod (66), and the other end of which passes through the inner tube (65) and is hinged to the inner end of the corresponding vertical plate (64); a plurality of tension springs (68) distributed along the circumferential direction, with inner ends fixedly connected to the outer circumferential wall of the inner tube (65) and outer ends fixedly connected to corresponding vertical plates (64); The number of the connecting holes (62) is the same as the number of the lifting rods (66) and they are arranged in a staggered manner. Each connecting hole (62) corresponds to the top end of a pair of lifting rods (66). The driving device (7) can extend into the connecting hole (62) and simultaneously push the pair of lifting rods (66) corresponding to the pick-and-place shell (46) to descend, so that the outer ends of the corresponding pair of side plates (556) extend out and are tightly sealed against the inner end of the pick-and-place shell (46).

2. A melt filter for replacing filter elements without stopping the machine according to claim 1, It is characterized in that The linkage device (55) further comprises: A fixed plate (559) fixedly connected to the middle of the lower chamber (43), and having a return spring (5510) disposed between the fixed plate (559) and the inner end of the sliding frame (551); The width of each outer inclined groove (557) in the horizontal direction is the same as that of each inner inclined groove (553), and the height of each outer inclined groove (557) in the vertical direction is twice the height of each inner inclined groove (553) in the vertical direction.

3. A melt filter for replacing filter elements without stopping the machine according to claim 1, It is characterized in that The driving device (7) comprises: A plurality of lifting blocks (71) are movably mounted in the upper cavity (42) to form a truncated cone shape, with a slope (72) facing outwards at the top, and a stop rod (73) is provided at the bottom of each lifting block (71); A plurality of top openings (74) are arranged at intervals on the top of the outer peripheral wall of the rotating platform (41) and communicate with the upper chamber (42); A plurality of sliding shells (75) are slidably mounted in the upper chamber (42) through the top openings (74), and each of the sliding shells has a sliding block (76) fixedly disposed at its inner end, and the inner end of each sliding block (76) abuts against the slope surface (72) of each lifting block (71); A pushing component (77) is mounted on the outer wall of the filter bin (1) and is located above the pick-and-place shell (46), and is used to push the sliding shell (75) at a corresponding position to move.

4. A melt filter for replacing filter elements without stopping the machine according to claim 3, It is characterized in that The driving device (7) further comprises: A plurality of cross beams (78) are respectively fixedly connected to the top of each filter element (45); A plurality of floating rods (79) are respectively installed at the bottom of each sliding shell (75) through a transmission component (8) for lifting; The pushing component (77) comprises a piston rod (771) that is capable of extension and rotation. The piston rod (771) provides power for the transmission component (8) to control the lifting and lowering of the corresponding floating rod (79). When the floating rod (79) descends, it extends into the liquid outlet hole to push the cross beam (78) to cause the corresponding filter element (45) to descend.

5. A melt filter for replacing filter elements without stopping the machine according to claim 4, It is characterized in that The transmission component (8) comprises: A rotating shaft (81) is rotatably mounted on the outer end of the sliding housing (75) via a ball bearing, and a rotating disk (82) is fixedly connected to the inner end thereof; A lifting frame (83) is L-shaped and is installed in the inner cavity of the sliding shell (75) for lifting, and has a transverse groove (84) on its vertical surface; An upper transmission block (85) fixedly connected to an eccentric position of the surface of the rotating disk (82) and slidingly engaged with the transverse groove (84); A pair of upper springs (86) arranged between the bottom surface of the lifting frame (83) and the bottom of the inner cavity of the sliding shell (75); The floating rod (79) is fixedly connected to the bottom surface of the lifting plate (54), and the lower end can pass through the sliding shell (75). The outer end of the rotating shaft (81) extends out of the sliding shell (75) and has a polygonal groove (87).

6. A melt filter for replacing filter elements without stopping the machine according to claim 5, It is characterized in that The pushing component (77) comprises: A cylinder (772) fixedly connected to the outer wall of the filter bin (1) and located above the access shell (46), with its piston rod (771) extending into the upper chamber (42); A sleeve (773) sleeved on the outside of the piston rod (771) and fixedly connected to the inner wall of the upper chamber (42); A pair of rotary transmission grooves (774) are arranged on opposite sides of the sleeve (773), each comprising a straight segment (7741) and a spiral segment (7742), and each spiral segment (7742) has the same spiral direction; A pair of rotary transmission blocks (775) are fixedly connected to the piston rod (771) and are slidably matched with corresponding rotary transmission grooves (774); The polygonal block (776) is fixedly connected to the outer end of the piston rod (771) and can be inserted into the polygonal groove (87).

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