Melt filter cartridge assembly aid with rotation function and method

Abstract

This invention discloses an auxiliary mechanism and method for assembling a melt filter element with a rotation function. The mechanism includes a melt filter element, a rotation mechanism, a support mechanism, and a melt filter element mounting plate. The rotation mechanism engages with one side of the melt filter element mounting plate. The mounting plate has mounting holes for the melt filter element. The support mechanism includes a limiting part for positioning the melt filter element. This invention facilitates the alignment and assembly of the melt filter element with the mounting plate, reduces the installation difficulty of the melt filter element, and improves the installation efficiency of the melt filter element and the mounting plate.

Description

Technical Field

[0001] This invention relates to the field of melt filter cartridge assembly technology, and in particular to an auxiliary mechanism and method for assembling melt filter cartridges with a rotation function. Background Technology

[0002] Melt filters are essential equipment in polyester and spinning production plants, used for the continuous filtration of polymer melts to remove impurities and unmelted particles, thereby improving the spinning performance and ensuring spinning quality. The melt filter element is the core component of the melt filter. It is a rod-shaped, all-metal filter element welded from folded stainless steel fiber sintered felt, folded stainless steel wire mesh, a central reinforcing skeleton, and a stainless steel protective sleeve. One end of the melt filter element is closed, while the other end has a melt inlet. The melt inlet features an external thread and an internal hexagonal hole structure. The external thread is used to install the melt filter element onto the mounting plate, while the internal hexagonal hole serves two purposes: firstly, it is the channel for the melt to enter the filter element, and secondly, it is used for tightening and loosening the melt filter element. When applying melt filter cartridges, they need to be installed inside a tube sheet. For example, the "A Polyester Melt Filter Cartridge Cleaning Equipment" authorized and announced by Chinese Patent No. CN2021225495776 on April 5, 2022, involves melt filter cartridges that are installed in conjunction with tube sheets. The tube sheets are provided with several rings of mounting holes arranged in a circumferential array, and the mounting holes are connected to the melt filter cartridges.

[0003] After a period of use, the pressure differential of the melt filter increases, requiring replacement and cleaning of the filter element before reuse. Cleaned and inspected melt filter elements are vertically loaded onto a transport trolley with a perforated plate and transported to the melt filter element assembly room for the next step – assembly.

[0004] Typically, the molten filter cartridge mounting plate is placed on a fixed platform 2 meters high. The assembly personnel take a molten filter cartridge from the transport trolley, walk to the mounting plate, align the threaded end of the molten filter cartridge with the threaded hole of the mounting plate, and screw the molten filter cartridge into the threaded hole. After the molten filter cartridge is tightened, the next molten filter cartridge is taken, and the threaded end of the molten filter cartridge is aligned with the threaded hole of the mounting plate again and screwed into the threaded hole. In this way, all the required number of filter cartridges are taken and screwed in in sequence.

[0005] The existing melt filter assembly technology has the following main shortcomings:

[0006] 1. During the process of picking up and screwing in the molten filter element, it is necessary to go back and forth between the filter element installation plate and the transport trolley multiple times, and circle the filter element installation plate many times. Most of the time is spent picking up the molten filter element, resulting in low assembly efficiency.

[0007] 2. During repeated use, cleaning, handling and installation, the protective sleeve of the melt filter element is prone to becoming rough or deformed. When the melt filter element is screwed into the threaded hole of the installation plate, it is easy to squeeze or scratch the palm.

[0008] 3. The small distance between the melt filter elements makes it inconvenient to align the threaded head of the melt filter element with the threaded hole of the mounting plate, making it difficult to screw the melt filter element into the threaded hole of the mounting plate, increasing the workload and difficulty of the work. Summary of the Invention

[0009] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a melt filter element assembly auxiliary mechanism with a rotation function, which facilitates the alignment and assembly of the melt filter element and the mounting plate, reduces the installation difficulty of the melt filter element, and improves the installation efficiency of the melt filter element and the melt filter element mounting plate.

[0010] To achieve the above objectives, the present invention adopts the following technical solution.

[0011] A melt filter cartridge assembly auxiliary mechanism with a rotation function includes a melt filter cartridge, a rotation mechanism, a support mechanism, and a melt filter cartridge mounting plate. The rotation mechanism cooperates with one side of the melt filter cartridge mounting plate. The melt filter cartridge mounting plate is provided with mounting holes for cooperating with the melt filter cartridge. The support mechanism includes a limiting part for limiting the melt filter cartridge.

[0012] The melt filter element is closed at one end and has a melt inlet at the other end. The melt inlet has an external thread and an internal hexagonal hole. The external thread is used to install the melt filter element onto the melt filter element mounting plate. The internal hexagonal hole serves two purposes: first, it is a channel for the melt to enter the filter element, and second, it is used for tightening and loosening the melt filter element. The melt filter element mounting plate is set by a rotating mechanism, and the supporting mechanism can limit the position of the melt filter element, reducing the difficulty of assembling the melt filter element and the melt filter element mounting plate, and facilitating the connection between the melt filter element and the melt filter element mounting plate. The rotating mechanism can rotate the position of the mounting plate so that the position of the mounting hole to be installed on the mounting plate is close to the position of the melt filter element feeding trolley, thereby reducing the time for removing the melt filter element and improving the installation efficiency of the melt filter element.

[0013] Preferably, the rotating mechanism includes a support plate and several sets of roller assemblies mounted on the support plate. Each roller assembly includes a pin connecting to the support plate, a rolling bearing mounted on the pin, and rollers connected to the rolling bearing. A positioning shaft coaxially mounted on the upper side of each roller is provided. The melt filter element mounting plate is mounted on the rollers of the several sets of roller assemblies. The rollers on the roller assemblies form a ring-shaped rotating structure. The melt filter element mounting plate is positioned on one side of the rollers, and the positioning shaft limits its movement to prevent it from detaching from the rollers. This ensures reliable mounting of the melt filter element mounting plate on the roller assembly, facilitates rotational adjustment of the mounting holes on the melt filter element mounting plate, and facilitates the feeding of the melt filter element.

[0014] Preferably, the limiting part includes a bottom fixing frame, on which a spring support assembly corresponding to the melt filter element is provided. The spring support assembly includes a support bowl corresponding to the lower end of the melt filter element, a screw fixedly mounted on the lower side of the support bowl, and a compression spring sleeved on the screw. The screw and the bottom fixing frame are slidably arranged, and the compression spring is disposed between the bottom fixing frame and the support bowl. This preferred solution discloses an installation method for upward installation of the melt filter element. By setting the spring support assembly, the support bowl can be elastically raised and lowered. During the installation of the melt filter element, the height of the support bowl can be lowered. After the melt filter element is in place, the compression spring resets and pushes it upward, allowing the melt filter element to mate with the mounting hole on the melt filter element mounting plate, facilitating the feeding of the melt filter element.

[0015] Preferably, the lower end of the screw is equipped with a foot pedal and a nut to prevent the foot pedal from dislodging. The foot pedal has a slotted hole that mates with the screw, and the lower end of the foot pedal abuts against the bottom of the bottom mounting bracket. When the foot pedal is pressed down, because the lower end of the foot pedal abuts against the bottom of the bottom mounting bracket, the foot pedal rotates under the limiting action of the nut, thereby driving the screw downwards. The length of the slotted hole limits the deflection angle range between the foot pedal and the screw, preventing the screw from being pressed down excessively, thus controlling the minimum height of the support bowl and facilitating the installation of the melt filter element.

[0016] Preferably, the bottom fixing frame includes a bottom fixing beam, which is a horizontally opening channel steel structure. The upper side of the bottom fixing beam has an opening slot for a matching screw, and the lower end of the foot pedal abuts against the upper side of the bottom fixing beam. The opening slot facilitates the installation and adjustment of the screw, and the channel steel structure of the bottom fixing beam forms a double-layer support structure, which facilitates the installation of the spring support assembly.

[0017] Preferably, the bottom mounting bracket is equipped with legs, and the support plate is fixed to the upper end of the legs. The legs allow for the spacing between the support plate and the bottom mounting bracket, facilitating two-point limiting support of the melt filter element and enabling vertical installation of the melt filter element.

[0018] Preferably, the limiting part includes a connecting plate with several guide pins. The upper end of each guide pin has a frustum-shaped surface that mates with the opening end of the melt filter element. The connecting plate is mounted on a rotating mechanism, and the guide pins correspond to the mounting holes in the melt filter element mounting plate. This preferred solution discloses an installation method for lowering the melt filter element mounting plate. The guide pins are vertically upward, and axial limiting is achieved by the guide pins corresponding to the opening end of the melt filter element, ensuring reliable mating between the melt filter element and the mounting holes.

[0019] Preferably, the outer side of the molten filter element mounting plate is connected to a lifting lug, which is connected to a flip-up bracket. The flip-up bracket includes a first positioning plate corresponding to the overall filter element mounting plate, a connecting rod connected to the first positioning plate, and a positioning hole plate connected to the upper end of the connecting rod. A rotating operating shaft is connected to the connecting rod or the positioning hole plate. The flip-up bracket enables the vertical setting of the molten filter element with the guide pin, facilitating the rotation and adjustment of the position of the molten filter element mounting plate and improving the installation efficiency of the molten filter element.

[0020] A method for assembling an auxiliary mechanism for a melt filter element with a rotation function, comprising the following steps:

[0021] A. Place the melt filter element mounting plate on top of the rotating mechanism;

[0022] B. Place the rotating mechanism and the transport trolley of the melt filter element close together, and the assembly personnel stand between the rotating mechanism and the transport trolley. The rotating mechanism is used to make the mounting holes of the melt filter element in the mounting plate correspond to the positions of the transport trolley.

[0023] C. The position of the melt filter element relative to the mounting hole is completed by the limiting part cooperating with the mounting hole; one end of the melt filter element is screwed into the mounting hole;

[0024] D. The mounting holes in the molten filter element mounting plate are arranged in several rings of coaxial circular array. When installing the molten filter element, proceed from the inner ring to the outer ring.

[0025] The melt filter element assembly method implemented by the auxiliary mechanism of this application can improve the ease of installation, avoid damage to the surface of the melt filter element, facilitate the installation and positioning of the melt filter element, and improve the installation efficiency of the melt filter element.

[0026] The beneficial effects of this invention are:

[0027] 1) The rotating mechanism and the melt filter element mounting plate on the rotating mechanism can rotate 360°, so that the assembly personnel are closest to the melt filter element assembly position and do not need to frequently travel back and forth between the melt filter element mounting plate and the transport trolley, which is more efficient, easy and convenient;

[0028] 2) The thread at the end of the melt filter element is accurately aligned with the threaded hole of the melt filter element mounting plate, making it easy and convenient to screw the thread at the end of the melt filter element into the plate;

[0029] 3) During the process of screwing the end thread of the melt filter element into the threaded hole of the melt filter element installation plate, it is not necessary to hold the melt filter element with your hands, which prevents your fingers from being squeezed or scratched, making it safer. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.

[0031] Figure 2 yes Figure 1 The illustrated embodiment is a structural diagram of the melt filter element during feeding.

[0032] Figure 3 yes Figure 1 The schematic diagram of the cooperation between the rotating mechanism and the support mechanism in the embodiment shown.

[0033] Figure 4 yes Figure 1 Top view of the support mechanism in the illustrated embodiment.

[0034] Figure 5 This is a schematic diagram of the roller assembly of the present invention.

[0035] Figure 6 yes Figure 1 A schematic diagram of the guide tightening wrench assembly in the embodiment shown.

[0036] Figure 7 yes Figure 1 The schematic diagram of the structure of the spring support assembly and the bottom fixed beam in the embodiment shown.

[0037] Figure 8 yes Figure 1 A schematic diagram of the spring support assembly in the illustrated embodiment.

[0038] Figure 9 This is a schematic diagram of another embodiment of the present invention.

[0039] Figure 10 yes Figure 9 A schematic diagram of the flip frame in the embodiment shown.

[0040] Figure 11 yes Figure 9 The diagram shows the arrangement of the connecting plate and guide pin in the illustrated embodiment.

[0041] Figure 12 yes Figure 9 Top view of the flip frame in the illustrated embodiment.

[0042] Figure 13 yes Figure 11 Top view.

[0043] In the picture: 11 Melt filter element

[0044] 12 Melt Filter Cartridge Mounting Plate

[0045] 13 Rotating Mechanism

[0046] 13-1 Support Plate

[0047] 13-2 Roller Assembly

[0048] 13-2-1 Rolling Bearing

[0049] 13-2-2 pin

[0050] 13-2-3 rollers

[0051] 13-2-4 positioning axis

[0052] 13-3 legs

[0053] 13-4 Bottom Fixed Beam

[0054] 13-5 Opening Slot

[0055] 14 Guide Tightening Wrench Assembly

[0056] 14-1 T-shaped thread wrench

[0057] 14-2 Positioning Slider

[0058] 14-3 Hexagonal Steel Bar

[0059] 15 Spring Support Assembly

[0060] 15-1 Compression Spring

[0061] 15-2 screw

[0062] 15-3 Support Bowl

[0063] 15-4 Spring Support Pad

[0064] 15-5 nuts

[0065] 15-6 foot pedals

[0066] 23-3 Connecting Plate

[0067] 23-4 guide pin

[0068] 24-inch flip stand

[0069] 24-1 Hanging Ear

[0070] 24-2 wing bolts

[0071] 24-3 First Positioning Plate

[0072] 24-4 connecting rod

[0073] 24-5 Rotary Operating Shaft

[0074] 24-6 Positioning Hole Plate Detailed Implementation

[0075] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0076] Example 1

[0077] like Figures 1 to 8 As shown, an auxiliary mechanism for assembling a melt filter element with a rotating function includes a melt filter element 11, a rotating mechanism 13, a supporting mechanism, and a melt filter element mounting plate 12. The rotating mechanism 13 engages with one side of the melt filter element mounting plate 12. The melt filter element mounting plate 12 has mounting holes for the melt filter element 11. The end thread of the melt filter element 11 is threadedly connected to the mounting holes of the melt filter element mounting plate 12. The position of the melt filter element mounting plate 12 corresponds to the upper end of the melt filter element 11. The melt filter element mounting plate 12 is supported by the rotating mechanism 13. The supporting mechanism is spaced apart from the rotating mechanism 13, and the supporting mechanism includes a limiting part for limiting the melt filter element 11.

[0078] The rotating mechanism 13 includes a support plate 13-1 and several sets of rollers 13-2-3 assemblies 13-2 arranged on the support plate 13-1. The support plate 13-1 is annular in shape, with an inner diameter of 600 mm and a thickness of 24 mm. The rollers 13-2-3 assemblies 13-2 are arranged in four sets in a circumferential array around the axis of the support plate 13-1. The central circle diameter of the four sets of rollers 13-2-3 assembly 13-2 is 678 mm. The roller 13-2-3 assembly 13-2 includes a pin 13-2-2 connecting to the support plate 13-1, a rolling bearing 13-2-1 mounted on the pin 13-2-2, and rollers 13-2-3 connected to the rolling bearings 13-2-1. A positioning shaft 13-2-4, coaxially arranged with the rollers 13-2-3, is provided on the upper side of each roller 13-2-3. The melt filter element mounting plate 12 is mounted on the rollers 13-2-3 of the several sets of rollers 13-2-3 assembly 13-2. The pin 13-2-2 is a stepped shaft, thicker in the middle and thinner at both ends. One end of the pin 13-2-2 is inserted into the support plate 13-1, and the other end engages with the rolling bearing 13-2-1. Rolling bearing 13-2-1 is model 6004, with dimensions of 20x42x12 (inner diameter x outer diameter x thickness). The inner ring of rolling bearing 13-2-1 is supported by the central protrusion of pin 13-2-2. The upper surface of roller 13-2-3 is round, and the lower surface of roller 13-2-3 has a central blind hole with a diameter of 42 mm. Roller 13-2-3 is supported on the outer ring of rolling bearing 13-2-1. The lower end of melt filter element mounting plate 12 is supported on the stepped surface formed by roller 13-2-3 and positioning shaft 13-2-4. The outer circle of melt filter element mounting plate 12 is located inside positioning shaft 13-2-4. The inscribed circle diameter of all mating positioning shafts 13-2-4 is 662 mm. Roller 13-2-3 is made of nylon. The outer diameter of the roller 13-2-3 melt filter element mounting plate 12 is 660 mm. The inner diameter of the support plate 13-1 is larger than the outer diameter of the bundle of all melt filter elements 11 on the melt filter element mounting plate 12, ensuring that the bundle formed by all melt filter elements 11 can freely pass through the support plate 13-1.

[0079] The limiting part includes a bottom fixing frame, on which a spring support assembly 15 corresponding to the melt filter element 11 is provided. The spring support assembly 15 includes a support bowl 15-3 corresponding to the lower end of the melt filter element 11. A screw 15-2 is fixedly provided on the lower side of the support bowl 15-3. A compression spring 15-1 is sleeved on the screw 15-2. The screw 15-2 and the bottom fixing frame are slidably arranged. The compression spring 15-1 is located between the bottom fixing frame and the support bowl 15-3. The support bowl 15-3 is a disc of a certain thickness. A spherical groove is machined into the center of one side of the disc, and the other side of the disc is a flat surface. The flat side of the support bowl 15-3 is connected to the screw 15-2. A spring support pad 15-4 corresponding to the lower end of the compression spring 15-1 is sleeved on the screw 15-2. The lower end of the screw 15-2 is equipped with a foot pedal 15-6 and a nut 15-5 to prevent the foot pedal 15-6 from dislodging. The foot pedal 15-6 has a slotted hole that mates with the screw 15-2, and the lower end of the foot pedal 15-6 abuts against the bottom of the bottom fixing frame. The bottom fixing frame includes a bottom fixing beam 13-4, which is a horizontally open channel steel structure. The upper side of the bottom fixing beam 13-4 has an opening slot 13-5 that mates with the screw 15-2, and the lower end of the foot pedal 15-6 abuts against the upper side of the bottom fixing beam 13-4. The support cup 15-3 and the spring support pad 15-4 are located on the upper part of the bottom fixing beam 13-4, and the foot pedal 15-6 and the nut 15-5 are located between the two sides of the bottom fixing beam 13-4. The screw 15-2 is engaged in the opening slot 13-5 of the bottom fixing beam 13-4. The compression stroke of the compression spring 15-1 is 100 mm, and the total height of the spring support assembly 15 is 200 mm.

[0080] The bottom mounting bracket is equipped with support legs 13-3, and a support plate 13-1 is fixed to the upper end of the support legs 13-3. The support legs 13-3 are welded to the support plate 13-1. Two support legs 13-3 located diagonally on the support plate 13-1 support the ground, and the other two diagonally located support legs 13-3 support the bottom mounting beam 13-4. In this embodiment, there are 5 opening slots 13-5. The bottom mounting beam 13-4 is arranged in a straight line. The opening slot 13-5 in the middle part of the bottom mounting beam 13-4 is located directly below the central mounting hole of the melt filter element mounting plate 12. Because the bottom mounting beam 13-4 and the melt filter element mounting plate 12 can rotate relative to each other, the bottom mounting beam 13-4 can correspond to the position of each mounting hole on the melt filter element mounting plate 12. The distance between adjacent opening slots 13-5 of the bottom mounting beam 13-4 is equal to the distance between the centers of the radially adjacent mounting holes of the melt filter element mounting plate 12.

[0081] To facilitate the rotation and tightening of the melt filter element 11, a guide tightening wrench assembly 14 is provided for the melt filter element 11. The guide tightening wrench assembly 14 includes a T-shaped threaded wrench 14-1, a positioning slider 14-2, and a hexagonal steel rod 14-3. A boss is provided on the lever of the T-shaped threaded wrench 14-1 near the handle, and a thread is provided on the lever outside the boss. The positioning slider 14-2 is a stepped cylinder with a through hole in its center. The positioning slider 14-2 is fitted onto the lever of the T-shaped threaded wrench 14-1. The large diameter of the positioning slider 14-2 is... The end rests on the protruding platform of the lever of the T-shaped threaded wrench 14-1. The hexagonal steel rod 14-3 has a threaded hole and is threadedly connected to the lever of the T-shaped threaded wrench 14-1. The hexagonal steel rod 14-3 is located outside the positioning slider 14-2. The end of the hexagonal steel rod 14-3 is machined into a frustum shape with a apex angle of 30° and a frustum length of 20mm. The distance between the hexagonal steel rod 14-3 and the positioning slider 14-2 can be adjusted by screwing in the thread length. When in use, the frustum at the end of the hexagonal steel rod 14-3 protrudes about 10mm from the bottom surface of the melt filter element mounting plate 12.

[0082] When assembling the melt filter element 11, the melt filter element mounting plate 12 is placed on top of the rotating mechanism 13. The rotating mechanism 13 assembly is placed close to the transport trolley of the melt filter element 11. The assembler stands on the side between the rotating mechanism 13 assembly and the transport trolley. The assembler can rotate the mounting holes at different radial positions on the melt filter element mounting plate 12 by rotating the rotating mechanism 13 assembly to match the position of the transport trolley, so that the melt filter element 11 can be easily picked up to complete the assembly.

[0083] Place the guide tightening wrench assembly 14 into the mounting hole at the center of the melt filter element mounting plate 12, ensuring that the truncated cone at the end of the hexagonal steel rod 14-3 protrudes approximately 10mm from the bottom surface of the melt filter element mounting plate 12. Adjust the spring support assembly 15 to the opening slot 13-5 at the center position on the bottom fixing beam 13-4. Place the closed end of the melt filter element 11 into the support bowl 15-3, and gently press down on the spring support assembly 15 to align the open end of the melt filter element 11 with the truncated cone at the end of the hexagonal steel rod. Slowly release the melt filter element 11; under the push of the spring support assembly 15, the end of the melt filter element 11 will press against the end of the mounting hole in the melt filter element mounting plate 12. Use the guide tightening wrench assembly to screw the threaded end of the melt filter element 11 into the mounting hole in the melt filter element mounting plate 12, thus completing the assembly of one filter element.

[0084] Adjust the spring support assembly 15 into the first ring of openings 13-5, located at the center of the bottom fixed beam 13-4. During assembly, rotate the melt filter element mounting plate 12 to keep the assembly personnel as close as possible to the mounting holes and melt filter element 11 to be assembled.

[0085] After assembling the first ring of the melt filter element 11, the assembly of the next ring begins. During the assembly process, the assembly personnel should always keep the distance between themselves and the melt filter element 11 to be assembled.

[0086] Example 2,

[0087] like Figures 9 to 13 As shown, a melt filter cartridge assembly auxiliary mechanism with a rotation function includes a melt filter cartridge 11, a rotation mechanism 13, a support mechanism, and a melt filter cartridge mounting plate 12. The rotation mechanism 13 engages with one side of the melt filter cartridge mounting plate 12. The melt filter cartridge mounting plate 12 has mounting holes for the melt filter cartridge 11. The end thread of the melt filter cartridge 11 is threadedly connected to the mounting holes of the melt filter cartridge mounting plate 12. The position of the melt filter cartridge mounting plate 12 corresponds to the lower end of the melt filter cartridge 11. The melt filter cartridge mounting plate 12 is supported by the rotation mechanism 13. The support mechanism includes a limiting part for limiting the melt filter cartridge 11.

[0088] The rotating mechanism 13 includes a support plate 13-1 and several sets of rollers 13-2-3 assemblies 13-2 arranged on the support plate 13-1. The support plate 13-1 is annular in shape, with an inner diameter of 600 mm and a thickness of not less than 20 mm. The rollers 13-2-3 assemblies 13-2 are arranged in a circumferential array around the axis of the support plate 13-1. The central circle diameter of the six sets of rollers 13-2-3 assembly 13-2 is 678 mm. The roller 13-2-3 assembly 13-2 includes a pin 13-2-2 connecting to the support plate 13-1, a rolling bearing 13-2-1 mounted on the pin 13-2-2, and rollers 13-2-3 connected to the rolling bearings 13-2-1. A positioning shaft 13-2-4, coaxially arranged with the rollers 13-2-3, is provided on the upper side of each roller 13-2-3. The melt filter element mounting plate 12 is mounted on the rollers 13-2-3 of the several sets of rollers 13-2-3 assembly 13-2. The pin 13-2-2 is a stepped shaft, thicker in the middle and thinner at both ends. One end of the pin 13-2-2 is inserted into the support plate 13-1, and the other end engages with the rolling bearing 13-2-1. Rolling bearing 13-2-1 is model 6004, with dimensions of 20x42x12 (inner diameter x outer diameter x thickness). The inner ring of rolling bearing 13-2-1 is supported by the central protrusion of pin 13-2-2. The upper surface of roller 13-2-3 is round, and the lower surface of roller 13-2-3 has a central blind hole with a diameter of 42 mm. Roller 13-2-3 is supported on the outer ring of rolling bearing 13-2-1. Roller 13-2-3 is made of nylon. The outer diameter of the melt filter element mounting plate 12 of roller 13-2-3 is 660 mm.

[0089] The limiting part includes a connecting plate 23-3, on which several guide pins 23-4 are provided. The upper end of each guide pin 23-4 has a frustum-shaped surface that mates with the opening end of the melt filter element 11. The connecting plate 23-3 is mounted on the rotating mechanism 13. The connecting plate 23-3 has a disc structure. The guide pins 23-4 on the connecting plate 23-3 correspond one-to-one with the mounting holes on the melt filter element mounting plate 12. A stepped block with a guiding function is welded onto the connecting plate 23-3. The connecting plate 23-3 is supported on the stepped shaft end face formed by the roller 13-2-3 and the positioning shaft 13-2-4. The outer circle of the connecting plate 23-3 is located inside the inscribed circle of the positioning shaft 13-2-4. The length of the frustum-shaped surface is approximately 30 mm. The melt filter element mounting plate 12 passes through the mounting hole and is supported on the connecting plate 23-3 via the guide pin 23-4. The upper end of the frustum surface of the guide pin 23-4 protrudes about 10mm from the upper end of the melt filter element mounting plate 12.

[0090] A lifting lug 24-1 is connected to the outer side of the melt filter element mounting plate 12. The lifting lug 24-1 is connected to a flip bracket 24. The flip bracket 24 includes a first positioning plate 24-3 corresponding to the overall filter element mounting plate, a connecting rod 24-4 connected to the first positioning plate 24-3, and a positioning hole plate 24-6 connected to the upper end of the connecting rod 24-4. A rotating operating shaft 24-5 is connected to the connecting rod 24-4 or the positioning hole plate 24-6. The lifting lug 24-1 is threaded to the outer ring of the melt filter element mounting plate 12 by a wing bolt 24-2. The first positioning plate 24-3 is annular in shape. The inner diameter of the first positioning plate 24-3 is larger than the outer diameter of the bundle of all melt filter elements 11 on the melt filter element mounting plate 12, ensuring that the bundle formed by all melt filter elements 11 can freely pass through the first positioning plate 24-3. There are at least three lifting lugs 24-1, and four connecting rods 24-4. The length of the connecting rods 24-4 is less than the length of the melt filter element 11, and the end of the connecting rod 24-4 has a through hole for lifting. The connecting rods 24-4 are welded to the positioning hole plate 24-6. The rotating operating shaft 24-5 is welded to the connecting rods 24-4, and the distance between the rotating operating shaft 24-5 and the end face of the melt filter element mounting plate 12 is greater than half the length of the melt filter element 11.

[0091] During assembly of the melt filter element 11, the melt filter element mounting plate 12 is placed on the connecting plate 23-3. Orientation markings are made on the melt filter element mounting plate 12 to facilitate alignment with the rotating mechanism 13. It is confirmed that the chamfered end of the guide pin 23-4 protrudes approximately 10mm from the upper surface of the melt filter element mounting plate 12. The rotating mechanism 13 assembly is placed close to the transport trolley of the melt filter element 11. The assembler stands on the side between the rotating mechanism 13 assembly and the transport trolley. The assembler can rotate the mounting holes at different radial positions on the melt filter element mounting plate 12 by rotating the rotating mechanism 13 assembly to match the position of the transport trolley, thus facilitating the removal and assembly of the melt filter element 11.

[0092] Insert the hexagonal hole at the end of the melt filter element 11 into the outside of the guide pin 23-4 at the center position. The guide pin 23-4 ensures that the thread at the end of the melt filter element 11 is aligned with the mounting hole of the melt filter element mounting plate 12. Simply press down the closed end of the melt filter element 11 to screw it into the mounting hole of the melt filter element mounting plate 12, thus completing the assembly of one filter element. After assembling the first turn of the melt filter element 11, begin assembling the next turn. During the assembly process, always keep the assembly personnel as close as possible to the melt filter element 11 to be assembled.

[0093] Example 3,

[0094] A method for assembling an auxiliary mechanism for a melt filter element with a rotation function, comprising the following steps:

[0095] A. Place the melt filter element mounting plate 12 on top of the rotating mechanism 13;

[0096] B. Place the rotating mechanism 13 and the transport trolley of the melt filter element 11 close together. The assembly personnel stand between the rotating mechanism 13 and the transport trolley. The rotating mechanism 13 is used to make the mounting holes of the melt filter element mounting plate 12 corresponding to the position of the transport trolley.

[0097] C. The position of the melt filter element 11 relative to the mounting hole is completed by the limiting part cooperating with the mounting hole; one end of the melt filter element 11 is screwed into the mounting hole;

[0098] D. The mounting holes in the melt filter element mounting plate 12 are provided with several rings of coaxial circular array. When installing the melt filter element 11, the installation is carried out from the inner ring to the outer ring.

[0099] In this application, the roller 13-2-3 rotates around the pin 13-2-2, and the support plate 13-1 can rotate 360° relative to the melt filter element mounting plate 12. The assembly personnel are closest to the assembly position of the melt filter element 11 and do not need to frequently travel back and forth between the melt filter element mounting plate 12 and the transport trolley, which is more efficient, easy and convenient. The end thread of the melt filter element 11 is accurately aligned with the mounting hole of the melt filter element mounting plate 12, and it is easy and convenient to screw the end thread of the melt filter element 11 into the mounting hole of the melt filter element mounting plate 12. During the process of screwing the end thread of the melt filter element 11 into the mounting hole of the melt filter element mounting plate 12, it is not necessary to hold the melt filter element 11 with your hands, which prevents squeezing and scratching your fingers and is safer.

Claims

1. A melt filter cartridge assembly auxiliary mechanism with a rotation function, characterized in that, It includes a melt filter element, a rotating mechanism, a supporting mechanism, and a melt filter element mounting plate. The rotating mechanism cooperates with one side of the melt filter element mounting plate. The melt filter element mounting plate is provided with mounting holes for the melt filter element. The supporting mechanism includes a limiting part that limits the melt filter element. The rotating mechanism includes a support plate and several sets of roller assemblies arranged on the support plate. Each roller assembly includes a pin connecting the support plate, a rolling bearing arranged on the pin, and rollers connected to the rolling bearing. A positioning shaft coaxially arranged on the upper side of each roller is provided. The melt filter element mounting plate is mounted on the rollers of the several sets of roller assemblies. The limiting part includes a bottom fixing frame. A spring support assembly corresponding to the melt filter element is provided on the bottom fixing frame. The spring support assembly includes a support bowl corresponding to the lower end of the melt filter element. A screw is fixedly arranged on the lower side of the support bowl. A compression spring is sleeved on the screw. The screw and the bottom fixing frame are slidably arranged. The compression spring is arranged between the bottom fixing frame and the support bowl. The pin is a stepped shaft. One end of the pin is inserted into the support plate, and the other end is engaged with the rolling bearing. The roller has a central blind hole inside the lower side. The roller is supported on the outer ring of the rolling bearing. The outer circle of the melt filter element mounting plate is located inside the positioning shaft.

2. The melt filter cartridge assembly auxiliary mechanism with rotation function according to claim 1, characterized in that, The screw sleeve is equipped with a spring support pad corresponding to the lower end of the compression spring.

3. The melt filter cartridge assembly auxiliary mechanism with rotation function according to claim 2, characterized in that, The lower end of the screw is provided with a foot pedal and a nut to prevent the foot pedal from coming off. The foot pedal is provided with a waist-shaped hole that matches the screw, and the lower end of the foot pedal abuts against the bottom of the bottom fixing frame.

4. The melt filter cartridge assembly auxiliary mechanism with rotation function according to claim 3, characterized in that, The bottom fixing frame includes a bottom fixing beam, which is a channel steel structure with a horizontally open end. The upper side of the bottom fixing beam is provided with an opening groove for a matching screw, and the lower end of the foot pedal abuts against the upper side of the bottom fixing beam.

5. The melt filter cartridge assembly auxiliary mechanism with rotation function according to claim 4, characterized in that, The bottom fixed frame is equipped with legs, and a support plate is fixed to the upper end of the legs. Two legs on the support plate are located diagonally on the ground, and the other two legs are located diagonally on the bottom fixed beam.

6. The melt filter cartridge assembly auxiliary mechanism with rotation function according to claim 1, characterized in that, It also includes a guide tightening wrench assembly, which includes a T-shaped threaded wrench, a positioning slider, and a hexagonal steel bar. A boss is provided on the lever of the T-shaped threaded wrench near the handle, and a thread is provided on the lever outside the boss. The positioning slider is a stepped cylinder with a through hole in the center. The positioning slider is fitted onto the lever of the T-shaped threaded wrench, and the hexagonal steel bar is threaded onto the lever of the T-shaped threaded wrench. The hexagonal steel bar is located outside the positioning slider.

7. An assembly method based on the melt filter cartridge assembly auxiliary mechanism with rotation function according to any one of claims 1 to 6, characterized in that, Includes the following steps: A. Place the melt filter element mounting plate on top of the rotating mechanism; B. Place the rotating mechanism and the transport trolley of the melt filter element close together, and the assembly personnel stand between the rotating mechanism and the transport trolley. The rotating mechanism is used to make the mounting holes of the melt filter element in the mounting plate correspond to the positions of the transport trolley. C. The position of the melt filter element relative to the mounting hole is completed by the limiting part cooperating with the mounting hole; one end of the melt filter element is screwed into the mounting hole; D. The mounting holes in the molten filter element mounting plate are arranged in several rings of coaxial circular array. When installing the molten filter element, proceed from the inner ring to the outer ring.

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