Feeding and discharging pipe heating device of melt filter

Abstract

The utility model discloses a feeding and discharging pipe heating device of a melt filter, which is characterized by comprising a pair of semicircular shell covers hinged to each other through a hinge, connecting plates are fixedly arranged on the outer sides of the other ends of the pair of semicircular shell covers, and the pair of connecting plates are attached to each other when the pair of connecting plates is closed and are fixedly connected with each other through a buckling structure; a plurality of electric heating pipes are fixedly arranged on the inner walls of the pair of semicircular shell covers, in daily use, by adopting the technical scheme, the pair of semicircular shell covers are opened to cover the outer side of the peripheral wall of the external feeding / discharging pipe, then the pair of semicircular shell covers are closed, and finally the pair of connecting plates are pressed through the buckling structures, so that the pair of semicircular shell covers are fixed on the external feeding / discharging pipe; and each electric heating pipe is electrified to generate heat to heat the external feeding / discharging pipe, so that the melt is prevented from being condensed when flowing through the external feeding / discharging pipe, and the production efficiency and the stability of the product quality are ensured.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, specifically to a heating device for the inlet and outlet pipes of a melt filter. Background Technology

[0002] Melt filters are primarily used for the continuous filtration of polymer melts, removing impurities and unmelted particles to improve the melt's spinning performance and ensure spinning quality. They typically include a filter chamber, filter element, feed pipe, discharge pipe, vent valve, outer jacket, and insulation layer. The melt enters the filter element through the feed pipe, is filtered, and then discharged through the discharge pipe. As the melt flows through the feed and discharge pipes, it easily condenses and adheres to the inner walls of these pipes. This condensation reduces the effective inner diameter of the feed and discharge pipes, decreasing the cross-sectional area for material flow and thus reducing the melt flow rate. This can lead to insufficient material supply during production, affecting production efficiency and product quality stability. Summary of the Invention

[0003] This utility model aims to solve one of the technical problems existing in the prior art.

[0004] This application provides a heating device for the inlet and outlet pipes of a melt filter, including a pair of semi-circular shells hinged to each other at their ends, and connecting plates fixedly provided on the outer side of the other end of each pair of semi-circular shells. The pair of connecting plates are attached to each other when they are closed and are fixedly connected to each other by a fastening structure. Several electric heating tubes are fixedly provided on the inner wall of each pair of semi-circular shells.

[0005] It also includes a thermally conductive filler, which is wrapped around the outside of each electric heating element.

[0006] The fastening structure includes a pair of flipping slots, symmetrically arranged on one of the connecting plates. Each of the two slots is rotatably mounted with a flipping rod via a rotating shaft. The far end of each flipping rod is connected to the same crossbar. The other connecting plate is provided with a pair of slots, each slot corresponding to a flipping slot.

[0007] The fastening structure also includes a sliding plate, which is slidably mounted on a connecting plate with a notch, and an inclined groove is provided in the upper middle part of the outer wall.

[0008] The fastening structure also includes slots on the outside of the sliding plate corresponding to a pair of flip rods, with a triangular block on the outer right end of each slot.

[0009] The fastening structure also includes a pair of baffles, which are fixed at both ends of the connecting plate with the notch, and a spring is provided between the right baffle and the right end of the sliding plate.

[0010] The fastening structure also includes a pair of limiting rods at both ends of the sliding plate, with the free ends of each limiting rod extending out of the adjacent baffle.

[0011] The beneficial effects of this utility model are as follows:

[0012] A pair of semi-circular shells fitted together on the inlet / outlet pipes are fixed by a snap-fit ​​structure. When each electric heating tube is energized, it heats the external inlet / outlet pipes, preventing the melt from solidifying as it flows through them, thus ensuring production efficiency and product quality stability. Attached Figure Description

[0013] Figure 1 This is a front view of the inlet and outlet heating device of the melt filter in the embodiments of this application;

[0014] Figure 2 This is a left view of the heating device for the inlet and outlet pipes of the melt filter in an embodiment of this application;

[0015] Figure 3 This is a cross-sectional view of the heating device for the inlet and outlet pipes of the melt filter in an embodiment of this application.

[0016] Figure Labels

[0017] 1-Semi-circular shell cover, 2-Connecting plate, 3-Snap-fit ​​structure, 31-Flipping groove, 32-Notch, 33-Flipping rod, 34-Horizontal bar, 35-Sliding plate, 36-Slanted groove, 37-Card slot, 38-Triangular block, 381-Inclined side, 382-Flat plane, 39-Baffle, 310-Spring, 311-Limiting rod, 4-Electric heating tube, 5-Heat-conducting filler. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] The inlet and outlet heating device of the melt filter provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0021] Example:

[0022] like Figures 1 to 3 As shown, this application embodiment provides a heating device for the inlet and outlet pipes of a melt filter, including a pair of semi-circular shell covers 1 that are hinged to each other at one end. A connecting plate 2 is fixedly provided on the outer side of the other end of each pair of semi-circular shell covers 1. The pair of connecting plates 2 are attached to each other when they are closed and are fixedly connected to each other by a fastening structure 3. Several electric heating tubes 4 are fixedly provided on the inner wall of each pair of semi-circular shell covers 1.

[0023] Furthermore, it also includes a thermally conductive filler 5, which wraps around the outside of each electric heating tube 4.

[0024] Furthermore, the fastening structure 3 includes a pair of flipping slots 31, symmetrically arranged on one of the connecting plates 2. Each of the pair of slots 32 is rotatably mounted with a flipping rod 33 via a rotating shaft. The far end of each flipping rod 33 is connected to the same crossbar 34. The other connecting plate 2 is provided with a pair of slots 32, each slot 32 corresponding to each flipping slot 31.

[0025] Furthermore, the fastening structure 3 also includes a sliding plate 35, which is slidably mounted on the connecting plate 2 with a notch 32, and an inclined groove 36 is provided in the upper middle part of the outer side wall.

[0026] Furthermore, the fastening structure 3 also includes slots 37 located on the outer side of the sliding plate 35, corresponding to a pair of flipping rods 33, with a triangular block 38 provided on the outer right end of each slot 37.

[0027] Furthermore, the fastening structure 3 also includes a pair of baffles 39, which are respectively fixed at both ends of the connecting plate 2 with the notch 32, and a spring 310 is provided between the right baffle 39 and the right end of the sliding plate 35.

[0028] Furthermore, the fastening structure 3 also includes a pair of limiting rods 311 disposed at both ends of the sliding plate 35, with the free end of each limiting rod 311 extending out of the adjacent baffle 39.

[0029] In this embodiment of the application, due to the above-described structure, during installation, the pair of connecting plates 2 are separated by a distance greater than the outer diameter of the external inlet / outlet pipe. The pair of semi-circular shell covers 1 are moved to the outside of the external inlet / outlet pipe, and then the pair of semi-circular shell covers 1 are closed. The heat-conducting filler 5 (silicone or copper) on both sides is in close contact with the outer peripheral wall of the external inlet / outlet pipe. Then, the crossbar 34 is turned so that the pair of flipping rods 33 enter the corresponding notches 32. During this process, each flipping rod 33 contacts the inclined side 381 of the corresponding triangular locking block 38 and moves with each flipping rod 33. The flipping motion pushes the triangular blocks 38 and the sliding plate 35 towards the spring 310, compressing the spring 310 until each flipping rod 33 disengages from the triangular blocks 38 and enters the corresponding slot 37. The spring 310 then resets, pushing the sliding plate 35 away from the spring 310. The inner plane 382 of each triangular block 38 contacts the outer peripheral wall of each flipping rod 33, and the bottom of the peripheral wall of the crossbar 34 contacts the top surface of the sliding plate 35. The inclined groove 36 on the outer side of the sliding plate 35 can prevent the crossbar 34 from being obstructed by the outer wall of the sliding plate 35 during the flipping process.

[0030] When it is necessary to disassemble a pair of semi-circular shell covers 1, push the sliding plate 35 towards the spring 310 so that the plane 382 of the triangular block 38 is away from each flipping rod 33. Then, move the crossbar 34 outward from the notch 32 so that each flipping rod 33 is disengaged from the corresponding notch 32 and the corresponding slot 37. Then, open the pair of semi-circular shell covers 1 so that the distance between the pair of connecting plates 2 is greater than the outer diameter of the external inlet / outlet pipe. Then, the pair of semi-circular shell covers 1 can be removed from the external inlet / outlet pipe.

[0031] When each electric heating tube 4 is energized, the heat generated is transferred to the peripheral wall of the external inlet / outlet pipe through the thermally conductive filler 5, thereby heating the external inlet / outlet pipe and preventing the melt from solidifying inside the external inlet / outlet pipe.

[0032] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0033] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A heating device for the inlet and outlet pipes of a melt filter, characterized in that, It includes a pair of semi-circular shells that are hinged to each other at one end. A connecting plate is fixed to the outer side of the other end of each pair of semi-circular shells. The connecting plates fit together when the pair are closed and are fixedly connected to each other by a fastening structure. Several electric heating tubes are fixed to the inner wall of each pair of semi-circular shells.

2. The inlet and outlet pipe heating device for a melt filter according to claim 1, characterized in that, It also includes a thermally conductive filler, which is wrapped around the outside of each electric heating element.

3. The inlet and outlet pipe heating device for a melt filter according to claim 1, characterized in that, The fastening structure includes a pair of flipping slots, symmetrically arranged on one of the connecting plates. Each of the two slots is rotatably mounted with a flipping rod via a rotating shaft. The far end of each flipping rod is connected to the same crossbar. The other connecting plate is provided with a pair of slots, each slot corresponding to a flipping slot.

4. The inlet and outlet pipe heating device for a melt filter according to claim 3, characterized in that, The fastening structure also includes a sliding plate, which is slidably mounted on a connecting plate with a notch, and an inclined groove is provided in the upper middle part of the outer wall.

5. The inlet and outlet pipe heating device for a melt filter according to claim 4, characterized in that, The fastening structure also includes slots on the outside of the sliding plate corresponding to a pair of flip rods, with a triangular block on the outer right end of each slot.

6. The inlet and outlet pipe heating device for a melt filter according to claim 5, characterized in that, The fastening structure also includes a pair of baffles, which are fixed at both ends of the connecting plate with the notch, and a spring is provided between the right baffle and the right end of the sliding plate.

7. The inlet and outlet heating device for a melt filter according to claim 6, characterized in that, The fastening structure also includes a pair of limiting rods at both ends of the sliding plate, with the free ends of each limiting rod extending out of the adjacent baffle.

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