Polyester thermofuse spinning device

Abstract

The invention relates to the technical field of polyester thermofuse spinning devices, and particularly discloses a polyester thermofuse spinning device which comprises an extruder mounted on a base station, the extruder is provided with a discharge pipe, one end corresponding to the discharge pipe is provided with a filter cartridge, and the filter cartridge is arranged above a movable platform. An oil cylinder capable of controlling the filter cartridge to ascend and descend is arranged in the middle of the movable platform, two movable blocks are symmetrically arranged on the movable platform in a sliding mode, butt joint pipes are arranged on the two movable blocks, butt joint mechanisms used for being in butt joint with the filter cartridge are further arranged on the movable blocks, and a pushing mechanism used for controlling the two movable blocks to move is arranged at the telescopic end of the oil cylinder. The movable platform is installed on a base plate in a sliding mode. According to the invention, the filter cartridge can be automatically separated, so that the filter cartridge is convenient to disassemble and replace, the production efficiency is effectively improved, and the problem of collision damage caused by non-standard operation of personnel is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of polyester hot-melt spinning devices, and particularly relates to a polyester hot-melt spinning device. Background Art

[0002] Polyester is a synthetic fiber made of polyethylene terephthalate (PET), which is a widely used chemical fiber and is widely used in the textile field. The polyester hot-melt spinning device is a core equipment for producing polyester fibers, and its working principle is to melt a high molecular polymer and then extrude and cool it to form continuous fibers. The production steps of the polyester hot-melt spinning device include raw material feeding, extrusion, filtration, and melt spinning operation through a number of spinnerets, etc.

[0003] The replacement of the filter screen of the polyester hot-melt spinning device is a crucial operation to ensure production quality. However, there are still some problems in the actual replacement process. Since the replacement of the filter screen of the existing device is mostly manual operation, the replacement time is relatively long, which affects the overall production efficiency. Moreover, during the replacement, there may be problems with non-standard operation by personnel, which may cause collision damage to the equipment and result in unnecessary losses.

[0004] Therefore, in order to solve such problems, we propose a polyester hot-melt spinning device. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a polyester hot-melt spinning device is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A polyester hot-melt spinning device includes an extruder installed on a base. The extruder is provided with a discharge pipe, and a filter cylinder is provided at one end corresponding to the discharge pipe. The filter cylinder is located above a movable platform. An oil cylinder capable of controlling the lifting and moving of the filter cylinder is provided in the middle of the movable platform. Two moving blocks are symmetrically arranged and slidably installed on the movable platform. Docking pipes are provided on both moving blocks, and a docking mechanism for docking with the filter cylinder is also provided on the moving blocks;

[0008] A pushing mechanism for controlling the movement of the two moving blocks is provided on the telescopic end of the oil cylinder, and the movable platform is slidably installed on a base plate.

[0009] Preferably, a feeding funnel and a recycling machine are provided at the end of the extruder away from the discharge pipe, and the recycling machine is also installed on the base.

[0010] Preferably, both ends of the filter cylinder are communicated, and a plurality of filter screen layers are detachably installed inside the filter cylinder.

[0011] Preferably, a clamp is fixed to the top of the telescopic end of the oil cylinder, the filter cartridge can be clamped and positioned within the clamp, and the filter cartridge is horizontally and laterally arranged.

[0012] Preferably, fixed seats are fixed to the four corners of the movable platform, two fixed seats correspond to each moving block, the bottom of the moving block is slidably connected to the tops of the two fixed seats, both moving blocks can slide towards the direction of the discharge pipe, and a telescopic rod is symmetrically and horizontally installed between the two moving blocks.

[0013] Preferably, a docking head is coaxially provided on the docking pipe, the radius of the docking head is greater than that of the docking pipe, the diameter of the docking head is the same as that of the filter cartridge, and the docking head can abut end-to-end with the filter cartridge. The moving block is provided with a round hole corresponding to the docking head, the docking head coaxially passes through and is arranged within the round hole, and the docking head is fixedly connected to the moving block through a bracket, and the bracket is arranged in a horizontal straight line shape.

[0014] Preferably, the docking mechanism includes a sleeve block coaxially and slidably sleeved on the docking head, the sleeve block is slidably connected to the round hole, two driving motors are symmetrically arranged in parallel on the upper part of the moving block, two bidirectional screws are coaxially fixed to both driving motors, the two bidirectional screws are arranged parallel to each other up and down, and two connecting seats are fixed to the sleeve block, and the two connecting seats are respectively threadedly sleeved on the two bidirectional screws.

[0015] Preferably, the docking mechanism further includes a pin block, the pin block is arranged at the end far from the connecting seat, and the pin block is coaxially threadedly sleeved and matched with the bidirectional screw. Two support blocks are fixed to the end of the docking pipe away from the docking head, the two support blocks are symmetrically arranged up and down, and sleeve blocks are fixed to both support blocks. The two pin blocks are coaxially aligned with the two sleeve blocks respectively, and the two pin blocks are respectively slidably connected to the interiors of the two sleeve blocks.

[0016] Preferably, a conveying pipe is further correspondingly provided for the discharge pipe, the filter cartridge is arranged between the discharge pipe and the conveying pipe, flange rings are provided at the opposite ends of the discharge pipe and the conveying pipe, and docking plates are symmetrically provided on the flange rings. Plug blocks are provided on both plug blocks, the two plug blocks are respectively aligned and matched with the two docking plates, and plug holes for plugging and matching with the plug blocks are provided on the docking plates.

[0017] Preferably, the pushing mechanism includes a push rod, the push rod is horizontally arranged, the middle part of the push rod is slidably sleeved on the telescopic end of the oil cylinder, connecting rods are rotatably provided at both ends of the push rod, the other ends of the two connecting rods are respectively rotatably connected to the bottoms of the two moving blocks, a pressing block and a pushing block are coaxially fixed to the telescopic end of the oil cylinder, there is a spacing between the pressing block and the pushing block, the pressing block and the pushing block respectively correspond to the upper and lower sides of the push rod, and a cross bar is further fixed between every two fixed seats, and the upper side of the cross bar abuts against the bottom of the push rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1: The present invention can automatically detach and conveniently disassemble and replace the filter cartridge, making the replacement time of the filter cartridge shorter than that of manual operation, with higher overall production efficiency. Moreover, during replacement, there will be no problem of non-standard personnel operation, effectively avoiding collision damage to the equipment, unnecessary losses, and ensuring personnel safety.

[0020] 2: While the present invention realizes the convenient replacement of the filter cartridge, it can also make the two docking pipes abut and position end-to-end with the discharge pipe and the feeding pipe respectively, effectively ensuring the connection effect and enabling the normal flow of the melt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is the first axonometric view of the present invention;

[0023] Figure 2 is the second axonometric view of the present invention;

[0024] Figure 3 is Figure 2 the partial enlarged view at A in

[0025] Figure 4 is the structural schematic diagram of the movable platform and the substrate of the present invention;

[0026] Figure 5 is the structural schematic diagram of the oil cylinder of the present invention;

[0027] Figure 6 is the structural schematic diagram after the oil cylinder of the present invention controls the upward movement of the filter cartridge;

[0028] Figure 7 is the cross-sectional view of the filter cartridge of the present invention.

[0029] In the figure: 1. Extruder; 2. Discharge pipe; 3. Filter cartridge; 4. Movable platform; 5. Oil cylinder; 6. Movable block; 7. Docking pipe; 8. Substrate; 9. Feeding hopper; 10. Recycling machine; 11. Filter screen layer; 12. Clamp; 13. Fixed seat; 14. Telescopic rod; 15. Bracket; 16. Docking head; 17. Sleeve block; 18. Driving motor; 19. Bi-directional screw; 20. Connecting seat; 21. Plug block; 22. Support block; 23. Sleeve block; 24. Feeding pipe; 25. Docking plate; 26. Plug; 27. Pushing rod; 28. Link; 29. Pressing block; 30. Pushing block; 31. Cross bar. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Refer to Figures 1-7 , a polyester hot-melt fiber spinning device, including an extruder 1 installed on a base platform. The extruder 1 is provided with a discharge pipe 2, and a filter cartridge 3 is provided at one end corresponding to the discharge pipe 2. The filter cartridge 3 is arranged above a movable platform 4. An oil cylinder 5 capable of controlling the lifting and moving of the filter cartridge 3 is provided in the middle of the movable platform 4. Two movable blocks 6 are symmetrically arranged and slidably installed on the movable platform 4. Docking pipes 7 are provided on both of the two movable blocks 6. A docking mechanism for docking with the filter cartridge 3 is also provided on the movable block 6.

[0032] A pushing mechanism for controlling the movement of the two movable blocks 6 is provided on the telescopic end of the oil cylinder 5. The movable platform 4 is slidably installed on a substrate 8. That is, electric sliders can be arranged on the substrate 8. The electric sliders are fixedly connected to the movable platform 4. The movement of the electric sliders can drive the precise movement of the movable platform 4. That is, the movement of the movable platform 4 and the components thereon back and forth on the substrate 8 can be controlled. Or an electric push rod can be arranged to precisely push and move the movable platform 4 through the electric push rod.

[0033] As a technical optimization solution of the present invention, a feeding hopper 9 and a recycling machine 10 are correspondingly provided at one end of the extruder 1 away from the discharge pipe 2. The recycling machine 10 is also installed on the base platform. The feeding hopper 9 is connected to an external pipeline. The external pipeline is used to transport high molecular polymers. The feeding hopper 9 is used to feed the inside of the extruder 1, that is, to add high molecular polymers. A heating mechanism is provided around the extruder 1, which can melt the high molecular polymers into a melt and push them. When the filter cartridge 3 needs to be replaced or maintained, the recycling machine 10 can reverse the spiral blade to extract the melt remaining in the extruder 1 and store it temporarily.

[0034] As a technical optimization solution of the present invention, both ends of the filter cylinder 3 are communicated, and a plurality of filter mesh layers 11 are detachably installed inside the filter cylinder 3. The filter mesh layer 11 is composed of a support frame and a filter mesh. The support frame is grid-shaped and can effectively support the filter mesh. The setting of a plurality of filter mesh layers 11 can improve production safety. For example, when the front filter mesh layer 11 is damaged, the subsequent filter mesh layers 11 can still ensure the filtering effect and ensure that production is not affected. The filter cylinder 3 and the plurality of filter mesh layers 11 can be replaced as a whole, and the filter mesh layer 11 inside the filter cylinder 3 can also be replaced separately. The filter cylinder 3 can be reused multiple times.

[0035] As a technical optimization solution of the present invention, a clamp 12 is fixed to the top of the telescopic end of the oil cylinder 5. The filter cylinder 3 can be clamped and positioned inside the clamp 12, and the filter cylinder 3 is horizontally arranged transversely. The clamp 12 has the effect of positioning the filter cylinder 3.

[0036] As a technical optimization solution of the present invention, fixed seats 13 are fixed to the four corners of the movable platform 4. Each moving block 6 corresponds to two fixed seats 13, and the bottom of the moving block 6 is slidably connected to the tops of the two fixed seats 13. Both moving blocks 6 can slide towards the direction of the discharge pipe 2. A telescopic rod 14 is symmetrically and horizontally installed between the two moving blocks 6. The fixed seats 13 can stably support the two moving blocks 6, and the two moving blocks 6 can achieve sliding movement on a horizontal plane. At the same time, the fixed seats 13 located at the four corners of the movable platform 4 provide gaps for the middle part and the front, back, left, and right sides, which is a special setting convenient for the installation of some necessary devices.

[0037] As a technical optimization solution of the present invention, a docking head 16 is coaxially provided on the docking pipe 7. The radius of the docking head 16 is greater than the radius of the docking pipe 7. The diameter of the docking head 16 is the same as the diameter of the filter cylinder 3, and the docking head 16 can abut against the end of the filter cylinder 3 end to end. The moving block 6 is provided with a circular hole corresponding to the docking head 16, and the docking head 16 coaxially passes through and is arranged in the circular hole. The docking head 16 is fixedly connected to the moving block 6 through a bracket 15, and the bracket 15 is arranged in a horizontal straight line shape.

[0038] As a technical optimization solution of the present invention, the docking mechanism includes a sleeve block 17 coaxially slidably sleeved on the docking head 16, the sleeve block 17 is slidably connected with the circular hole, and the sleeve block 17 can be fitted on the docking head 16 and the outside of the filter cartridge 3 against the docking end, which can ensure the sealing effect of the docking end, and the two sleeve blocks 17 also play the role of positioning the filter cartridge 3 at both ends. Two driving motors 18 are arranged on the upper side of the moving block 6 in parallel and symmetrically, and the two driving motors 18 are coaxially fixed with two bidirectional screws 19, and the two bidirectional screws 19 are arranged in parallel up and down, and the sleeve block 17 is fixed with two connecting seats 20, and the two connecting seats 20 are respectively threadedly sleeved on the two bidirectional screws 19, that is, the connecting seat 20 is provided with a screw hole matching a section of the thread of the bidirectional screw 19. The driving motor 18 can drive the bidirectional screw 19 to rotate accurately, and the driving motor 18 is started synchronously, that is, it can synchronously drive the two connecting seats 20 to move, and the two connecting seats 20 can drive the corresponding sleeve block 17 to move, so that the sleeve block 17 can be separated from the outside of the filter cartridge 3.

[0039] As a technical optimization solution of the present invention, the docking mechanism also includes a latch block 21, which is arranged at one end away from the connecting seat 20, and the latch block 21 is matched with the coaxial thread sleeve of the bidirectional screw 19. Two support blocks 22 are fixed to the end of the docking tube 7 away from the docking head 16. The two support blocks 22 are symmetrically arranged up and down, and sleeve blocks 23 are fixed on the two support blocks 22. The two latch blocks 21 are coaxially aligned with the two sleeve blocks 23 respectively, and the two latch blocks 21 are slidably connected with the inside of the two sleeve blocks 23 respectively. The bidirectional screw 19 is made on a rod with two sections of threads with different rotation directions, that is, one section of right-handed thread and one section of left-handed thread. The connecting seat 20 and the latch block 21 screwed thereon, when the bidirectional screw 19 rotates in different directions, the two bidirectional screws 19 can move towards or away from the sleeve block 17.

[0040] As a technical optimization scheme of the present invention, the discharge pipe 2 is also provided with a corresponding feed pipe 24, the filter cartridge 3 is arranged between the discharge pipe 2 and the feed pipe 24, the discharge pipe 2 and the feed pipe 24 are provided with flange rings at the opposite ends, and docking plates 25 are symmetrically provided on the flange rings, and the two latch blocks 21 are provided with plug blocks 26, the two plug blocks 26 are respectively aligned and matched with the two docking plates 25, and the docking plates 25 are provided with sockets that are plugged and matched with the plug blocks 26. The bidirectional screw 19 can drive the latch block 21 to move, and the movement of the latch block 21 can drive the plug block 26 to disengage from the socket. That is, the corresponding bidirectional screw 19 rotates, which can drive the corresponding latch block 21 to move and the connection seat 20 to move, and finally realize the movement of the plug block 26 and the sleeve block 17, which can not only realize the positioning of the docking tube 7 with the discharge pipe 2 or the feed pipe 24, but also realize that the sleeve blocks 17 at both ends are fitted and arranged on the docking joint 16 and the filter cartridge 3 against the outside of the docking end.

[0041] As a technical optimization solution of the present invention, the pushing mechanism includes a push rod 27. The push rod 27 is horizontally arranged, and the middle part of the push rod 27 is slidably sleeved on the telescopic end of the oil cylinder 5. Connecting rods 28 are rotatably arranged at both ends of the push rod 27. The other ends of the two connecting rods 28 are respectively rotatably connected to the bottoms of the two moving blocks 6. A pressing block 29 and a pushing block 30 are coaxially fixed on the telescopic end of the oil cylinder 5. There is a spacing between the pressing block 29 and the pushing block 30. The pressing block 29 and the pushing block 30 respectively correspond to the upper and lower sides of the push rod 27. A cross bar 31 is also fixed between every two fixed seats 13. The upper side of the cross bar 31 abuts against the bottom of the push rod 27. The telescopic end of the oil cylinder 5 can control the pressing block 29 and the cross bar 31 to abut and position the push rod 27 between the two. In this state, the two ends of the push rod 27 position and limit the two connecting rods 28, and the two connecting rods 28 then push and position to limit the two moving blocks 6, so that the two docking pipes 7 can respectively abut and position end-to-end with the discharge pipe 2 and the feeding pipe 24, that is, the oil cylinder 5 can effectively ensure the positioning and docking effect of the two docking pipes 7 with the discharge pipe 2 and the feeding pipe 24 respectively.

[0042] The above electrical equipment is all controlled by a control module, that is, controlled by a programmable PLC controller, and can all be obtained in the market.

[0043] When the present invention is in use, as the polyester hot melt spinning device works for a long time, more and more impurities are blocked by the filter layer 11 inside the filter cylinder 3, which in turn causes the flow resistance of the melt to become larger. At this time, a relatively high pressure is likely to be generated inside, and it is very likely that the filter layer 11 will crack and be damaged, thus affecting subsequent production. Therefore, the filter cylinder 3 needs to be replaced regularly. When replacing the filter cylinder 3, first start all the drive motors 18 on the two moving blocks 6. The corresponding drive motors 18 can drive the bidirectional screw 19 to rotate precisely, and the rotation of the bidirectional screw 19 causes the connecting seat 20 and the pin block 21 on it to move away from each other. At this time, the corresponding sleeve block 17 and the pin block 21 are driven to move in sequence, so that the sleeve block 17 is separated from the outside of the filter cylinder 3 and the plug block 26 is separated from the jack on the docking plate 25. After the above operations, the filter cylinder 3 can move up and down without obstruction. Subsequently, the oil cylinder 5 is started. The oil cylinder 5 drives the corresponding telescopic end to rise, so that the filter cylinder 3 moves upward, and the telescopic end of the oil cylinder 5 drives the filter cylinder 3 at the top to move out of between the two docking heads 16, as specifically shown in Figure 6 shown. After that, the oil cylinder 5 continues to rise and drives the pushing block 30 to move upward. The pushing block 30 abuts against the bottom of the push rod 27 and drives the push rod 27 to rise. At this time, as the push rod 27 rises, the two moving blocks 6 can be respectively pushed by the two connecting rods 28, so that the two moving blocks 6 move closer, that is, finally the two docking pipes 7 can be separated from the discharge pipe 2 and the feeding pipe 24 respectively.

[0044] After the above operations are completed, the control activity platform 4 moves on the substrate 8, so that the activity platform 4 and the components thereon move to the side, that is, the filter cartridge 3 moves and separates from before the discharge pipe 2 and the material conveying pipe 24. At this time, since the two docking pipes 7 are separated, there will be no frictional collision during movement. Then the clamp 12 is opened, the filter cartridge 3 is taken out and a new filter cartridge 3 is replaced. Subsequently, the activity platform 4 and the components thereon are moved back to their original positions, and the filter cartridge 3 is positioned. In addition, the two docking pipes 7 are respectively docked with the discharge pipe 2 and the material conveying pipe 24. The above overall operation makes the replacement time of the filter cartridge 3 more efficient in the overall production compared with manual replacement. Moreover, during the replacement, there will be no problem of non-standard operation by personnel, effectively avoiding collision damage to the equipment and unnecessary losses.

[0045] During normal production, that is, when the filter cartridge 3 is positioned and the two docking pipes 7 are respectively docked with the discharge pipe 2 and the material conveying pipe 24, the sleeve blocks 17 can be fitted and arranged outside the docking head 16 and the abutting docking end of the filter cartridge 3, which can ensure the sealing effect of the docking end. At the same time, the two sleeve blocks 17 also play the role of positioning the filter cartridge 3 at both ends. At the same time, the telescopic end of the oil cylinder 5 can control the pressing block 29 and the cross bar 31 to abut and position the push rod 27 between the two. In this state, the two ends of the push rod 27 position and limit the two connecting rods 28, and the two connecting rods 28 then push and position the two moving blocks 6, so that the two docking pipes 7 can respectively abut and position end-to-end with the discharge pipe 2 and the material conveying pipe 24. That is, the oil cylinder 5 can effectively ensure the positioning and docking effect of the two docking pipes 7 with the discharge pipe 2 and the material conveying pipe 24 respectively.

[0046] Moreover, the device can be used for emergency handling. For example, when there is a situation of relatively high internal melt pressure, in order to avoid the problem that several spinnerets or other components are damaged due to excessive pressure, if necessary, the two docking pipes 7 can be controlled to separate from the discharge pipe 2 and the material conveying pipe 24 respectively to achieve the effect of temporary pressure relief. At this time, no one should stand around.

[0047] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A polyester hot melt filament spinning device, including an extruder (1) installed on a base, characterized in that, The extruder (1) is provided with a discharge pipe (2), and a filter cylinder (3) is provided at one end corresponding to the discharge pipe (2). The filter cylinder (3) is arranged above a movable platform (4). An oil cylinder (5) capable of controlling the lifting and moving of the filter cylinder (3) is provided in the middle of the movable platform (4). Two moving blocks (6) are symmetrically arranged and slidably mounted on the movable platform (4). Docking pipes (7) are provided on both of the two moving blocks (6). A docking mechanism for docking with the filter cylinder (3) is further provided on the moving blocks (6). A pushing mechanism for controlling the movement of the two moving blocks (6) is provided on the telescopic end of the oil cylinder (5). The movable platform (4) is slidably mounted on a base plate (8).

2. The polyester hot melt spinning device according to claim 1, characterized in that, A feeding hopper (9) and a recycling machine (10) are correspondingly provided at one end of the extruder (1) away from the discharge pipe (2). The recycling machine (10) is also mounted on the base platform.

3. The polyester hot-melt spinning device according to claim 1, characterized in that, Both ends of the filter cylinder (3) are communicated. A plurality of filter screen layers (11) are detachably mounted inside the filter cylinder (3).

4. A polyester hot-melt filament spinning device according to claim 1, characterized in that, A clamp (12) is fixed at the top of the telescopic end of the oil cylinder (5). The filter cylinder (3) can be clamped and positioned inside the clamp (12), and the filter cylinder (3) is horizontally arranged transversely.

5. A polyester hot-melt filament spinning device according to claim 1, characterized in that, Fixing seats (13) are fixed at the four corners of the movable platform (4). Each moving block (6) corresponds to two fixing seats (13). The bottom of the moving block (6) is slidably connected to the tops of the two fixing seats (13). Both of the two moving blocks (6) can slide in the direction of the discharge pipe (2). A telescopic rod (14) is symmetrically and horizontally mounted between the two moving blocks (6).

6. The polyester hot-melt spinning device according to claim 1, characterized in that The docking pipe (7) is coaxially provided with a docking head (16). The radius of the docking head (16) is larger than that of the docking pipe (7). The diameter of the docking head (16) is the same as the diameter of the filter cylinder (3). And the docking head (16) can abut against the filter cylinder (3) end to end. The moving block (6) is provided with a round hole corresponding to the docking head (16). The docking head (16) passes through the round hole coaxially. The docking head (16) is fixedly connected to the moving block (6) through a bracket (15). The bracket (15) is arranged in a horizontal straight line shape.

7. A polyester hot-melt spinning device according to claim 1, characterized in that, The docking mechanism includes a sleeve block (17) coaxially and slidably sleeved on the docking head (16). The sleeve block (17) is slidably connected to the round hole. Two driving motors (18) are symmetrically and parallelly arranged on the moving block (6). Two bidirectional screws (19) are coaxially fixed to both of the two driving motors (18). The two bidirectional screws (19) are arranged parallelly up and down. Two connecting seats (20) are fixed to the sleeve block (17). The two connecting seats (20) are respectively threadedly sleeved on the two bidirectional screws (19).

8. A polyester hot melt filament spinning device according to claim 7, characterized in that, The docking mechanism further includes a latch block (21), which is arranged at one end far from the connection seat (20), and the latch block (21) is coaxially threadedly sleeved and matched with the bidirectional screw rod (19). Two support blocks (22) are fixed at one end of the docking pipe (7) away from the docking head (16). The two support blocks (22) are symmetrically arranged up and down, and sleeve blocks (23) are fixed on both of the two support blocks (22). The two latch blocks (21) are coaxially aligned with the two sleeve blocks (23) respectively, and the two latch blocks (21) are respectively slidably connected to the interiors of the two sleeve blocks (23).

9. The polyester hot-melt filament spinning device according to claim 8, characterized in that, A material conveying pipe (24) is also correspondingly provided for the discharge pipe (2). The filter cylinder (3) is arranged between the discharge pipe (2) and the material conveying pipe (24). Flange rings are provided at opposite ends of the discharge pipe (2) and the material conveying pipe (24), and docking plates (25) are symmetrically provided on the flange rings. Plug blocks (26) are provided on both of the two latch blocks (21). The two plug blocks (26) are respectively aligned and matched with the two docking plates (25), and insertion holes for inserting and matching with the plug blocks (26) are provided on the docking plates (25).

10. A polyester hot-melt filament spinning device according to claim 5, characterized in that, The pushing mechanism includes a push rod (27), which is horizontally arranged, and the middle of the push rod (27) is slidably sleeved on the telescopic end of the oil cylinder (5). Connecting rods (28) are rotatably provided at both ends of the push rod (27). The other ends of the two connecting rods (28) are respectively rotatably connected to the bottoms of the two moving blocks (6). A pressing block (29) and a pushing block (30) are coaxially fixed on the telescopic end of the oil cylinder (5). There is a gap between the pressing block (29) and the pushing block (30). The pressing block (29) and the pushing block (30) respectively correspond to the upper and lower sides of the push rod (27). A cross bar (31) is also fixed between every two fixed seats (13). The upper side of the cross bar (31) abuts against the bottom of the push rod (27).

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