Electric heating slow cooling block suitable for single station spinning beam

Abstract

The utility model provides a kind of electric heating slow cooling block suitable for single-station spinning beam, including split type heating jacket, split type heating jacket includes fixed heating part and movable heating part articulated with each other, fixed heating part and movable heating part butt joint and form hollow cylinder for passing by top flange plate, fixed heating part is connected in spinning assembly lower side by top flange plate. Split type heating jacket outer periphery is wrapped with heat preservation layer. The utility model makes the slow cooling of filament bundle, makes spinning cooling curve more smooth, reduces the filament damage and defect caused by extremely fast cooling, improves filament bundle quality, can expose spinneret, ensure that the filament that spinneret sprays is uniform, and can satisfy certain need filament bundle exposure heating spinning process demand, improve adaptability.

Description

Technical Field

[0001] This utility model belongs to the technical field of spinning equipment, specifically relating to an electrically heated slow-cooling block suitable for a single-station spinning box. Background Technology

[0002] In the field of industrial spinning technology, especially in the production of pre-oriented yarn (POY), the slow cooling and heat preservation technology of single-station spinning boxes has always been a key challenge affecting product quality and a focus of industry research. The quality indicators of POY industrial yarn, such as strength, elongation, and evenness, largely depend on the initial cooling and solidification process of the molten fine stream after it exits the spinneret. The effectiveness of slow cooling and heat preservation directly determines the crystallinity and orientation of the nascent fiber, thus affecting the physical properties of the final product. Currently, the industry mainly uses two slow cooling heating plate technologies: monolithic slow cooling heating plates and sleeve-type slow cooling heating plates. While monolithic slow cooling heating plates have advantages such as good heating effect, rapid temperature rise, simple manufacturing, and easy installation and maintenance, their disadvantages include a small slow cooling area, a limited heating range, and poor heat preservation, which are particularly prominent in certain spinning formulations. For POY formulations requiring long-term heat preservation, the limited heat preservation time of monolithic heating plates cannot effectively suppress crystallinity, leading to a decrease in melt fluidity and ultimately affecting the forming quality of the POY. In comparison, sleeve-type slow-cooling heating plates offer better heating performance and a longer heating area, theoretically making them more suitable for POY formulations requiring extended heat preservation. However, sleeve-type heating plates suffer from drawbacks such as insufficient temperature control precision, greater manufacturing difficulty, less convenient installation and maintenance compared to monolithic plates, and difficulty in observing the spinning cooling process and its effects.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides an electrically heated slow cooling block suitable for a single-station spinning box. It is equipped with a split heating jacket, which can expose the spinneret provided by the spinneret plate, ensuring that the filaments sprayed by the spinneret plate are uniform and consistent, making it easy to observe the cooling effect of the filament bundle, and making it easy for operators to adjust process parameters.

[0005] Technical Solution: To achieve the above objectives, this utility model provides an electrically heated slow-cooling block suitable for single-station spinning boxes, comprising a split heating jacket. The split heating jacket includes a fixed heating part and a movable heating part hinged together, forming a hollow cylinder through which the filament bundle passes. A top flange is integrally connected to the top of the fixed heating part, which is connected to the lower side of the spinning assembly via the top flange. An insulation layer covers the outer periphery of the split heating jacket. This utility model is installed on the lower side of the spinning assembly via the top flange. The filament bundle ejected from the spinneret of the spinning assembly passes through the channel provided in the split heating jacket, slowly cooling down, making the spinning cooling curve smoother, reducing filament damage and defects caused by rapid cooling, and improving filament bundle quality. During production, if it is necessary to observe the slow-cooling effect of the filament bundle, the movable heating part can be opened to expose the spinneret clips on the spinneret, ensuring that the filaments ejected by the spinneret are uniform and consistent without gaps. This also meets the requirements of certain spinning processes that require exposed heating of the filament bundle, improving adaptability.

[0006] Furthermore, in the aforementioned electrically heated slow-cooling block suitable for a single-station spinning box, the fixed heating part is connected to two ends with first hinge arms, and the movable heating part is connected to two ends with second hinge arms. The distal ends of the first and second hinge arms are hinged together by a pin. The hinge between the distal ends of the first and second hinge arms allows the movable heating part to rotate flexibly around the pin, providing sufficient operating space for opening the movable heating part. This allows operators to directly observe the flow state of the filament bundle, the uniformity of filament output from the spinneret, and the temperature distribution of the slow-cooling area measured by an infrared temperature measuring instrument without disassembling the entire slow-cooling block.

[0007] Furthermore, in the aforementioned electrically heated slow-cooling block suitable for a single-station spinning box, a shell is provided around the outer periphery of the insulation layer. The shell includes a first shell connected to the fixed heating part and a second shell connected to the movable heating part. The first and second shells are joined to form a hollow cavity, and the insulation layer is disposed inside the first and second shells. The first and second shells provide protection for the insulation layer, preventing damage to the insulation layer and improving its lifespan.

[0008] Furthermore, in the aforementioned electrically heated slow-cooling block suitable for a single-station spinning box, a latch is installed at the joint between the first and second housings. The latch includes a latch base connected to the first housing and a latch body connected to the second housing. A hook is provided at one end of the latch base near the latch body. The latch body includes a base connected to the second housing and a locking part hinged to the base. The locking part has a latching ring that engages with the hook on the latch base for locking. When it is necessary to lock the first and second housings together, the latching ring is inserted into the hook, and the locking part is moved towards the latch base. When the locking part, latching ring, and latch base are in a straight line, the latching ring engages in the groove of the hook, locking the first and second housings. When it is necessary to separate the first and second housings, the locking part is moved away from the latch base, and the latching ring disengages from the groove of the hook, releasing the lock. The latch enables quick locking and unlocking of the first and second housings, improving operational convenience.

[0009] Furthermore, in the aforementioned electrically heated slow-cooling block suitable for a single-station spinning box, thermocouples are installed in both the fixed heating section and the movable heating section, with the thermocouples passing through through holes in the insulation layer. The thermocouples can monitor the temperatures of the fixed and movable heating sections in real time, and control the heating temperature of the split heating jacket through the electric heating control system, achieving precise temperature control and thus improving the quality of the filament bundle. Furthermore, in the aforementioned electrically heated slow-cooling block suitable for single-station spinning boxes, an electric heating tube is installed inside the split-type heating jacket, and the electric heating tube is electrically connected to the electric heating control system. The electric heating tube can respond quickly to temperature changes and provide precise temperature control. Combined with the thermocouple, accurate temperature control can be achieved.

[0010] Furthermore, in the aforementioned electrically heated slow-cooling block suitable for single-station spinning boxes, the bottom of the movable heating section is provided with a bottom flange corresponding to the top flange. By connecting two or more electrically heated cooling blocks through the top flange and the bottom flange, a longer cooling zone can be formed, creating a slow-cooling zone with a gentle temperature gradient, thus meeting the needs of different spinning processes.

[0011] As can be seen from the above technical solution, this utility model has the following beneficial effects: This utility model is applicable to the electric heating slow cooling block of a single-station spinning box, and is equipped with a split heating sleeve to expose the spinneret nozzle, ensuring that the filaments sprayed from the spinneret are uniform and consistent without any gaps, allowing observation of the slow cooling effect of the filament bundle, facilitating operators to adjust process parameters, and meeting the needs of certain spinning processes that require exposed heating of the filament bundle, thus improving adaptability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the electrically heated slow-cooling block of this utility model applicable to a single-station spinning box; Figure 2 This is a schematic diagram of the structure of the electrically heated slow-cooling block of the present invention in the unfolded state, applicable to a single-station spinning box; Figure 3 As shown Figure 2 A magnified view of a portion of the image; Figure 4 As shown Figure 2 A magnified view of a portion of the image.

[0013] In the figure: 1. Split heating jacket, 11. Fixed heating part, 111. Top flange, 112. First hinge arm, 12. Movable heating part, 121. Second hinge arm, 2. Insulation layer, 21. Through hole, 31. First shell, 32. Second shell, 4. Lock, 41. Lock seat, 42. Lock body, 411. Hook, 421. Base, 422. Locking part, 423. Buckle. Detailed Implementation

[0014] Example 1 like Figure 1-2 The diagram illustrates an electrically heated slow-cooling block suitable for a single-station spinning box, comprising a split heating jacket 1. The split heating jacket 1 includes a fixed heating part 11 and a movable heating part 12 hinged together, forming a hollow cylinder through which the yarn bundle passes. A top flange 111 is integrally connected to the top of the fixed heating part 11, which is connected to the lower side of the spinning assembly via the top flange 111. An insulation layer 2 surrounds the outer periphery of the split heating jacket 1. The split heating jacket 1 is preferably a cast aluminum heating ring. The insulation layer 2 is preferably a ceramic fiber board.

[0015] In this embodiment, the fixed heating part 11 is connected to two ends of a first hinge arm 112, and the movable heating part 12 is connected to two ends of a second hinge arm 121. The distal ends of the first hinge arm 112 and the distal ends of the second hinge arm 121 are hinged together by a pin. The hinge between the distal ends of the first hinge arm 112 and the second hinge arm 121 allows the movable heating part 12 to rotate flexibly around the pin, providing sufficient operating space for opening the movable heating part 12. This allows operators to directly observe the flow state of the filament bundle, the uniformity of filament output from the spinneret, and the temperature distribution of the slow cooling area by measuring the temperature using an infrared temperature measuring instrument without disassembling the entire slow cooling block.

[0016] In this embodiment, the outer periphery of the insulation layer 2 is provided with a shell, which includes a first shell 31 connected to the fixed heating part 11 and a second shell 32 connected to the movable heating part 12. The first shell 31 and the second shell 32 are joined to form a hollow cavity, and the insulation layer 2 is disposed inside the first shell 31 and the second shell 32. The first shell 31 and the second shell 32 provide protection for the insulation layer 2, preventing damage to the insulation layer 2 and improving the service life of the insulation layer 2. The first shell 31 is fixedly connected to the fixed heating part 11, and the second shell 32 rotates synchronously with the movable heating part 12. When the movable heating part 12 is opened, the second shell 32 is opened along with it, without obstructing the observation of the filament state or the temporary adjustment of the spinneret.

[0017] like Figure 3-4 The electrically heated slow-cooling block shown is suitable for a single-station spinning box. A latch 4 is installed at the joint of the first housing 31 and the second housing 32. The latch 4 includes a latch seat 41 connected to the first housing 31 and a latch body 42 connected to the second housing 32. The latch seat 41 has a hook 411 near the end of the latch body 42. The latch body 42 includes a base 421 connected to the second housing 32 and a locking part 422 hinged to the base 421. The locking part 422 is hinged to a latch ring 423 that engages with the hook 411 on the latch seat 41 for locking. When it is necessary to lock the first housing 31 and the second housing 32 together, the latch ring 423 is put into the hook 411, and the locking part 422 is moved towards the latch seat 41. When the locking part 422, the latch ring 423 and the latch seat 41 are in a straight line, the latch ring 423 is engaged in the groove of the hook 411, locking the first housing 31 and the second housing 32. When it is necessary to separate the first housing 31 and the second housing 32, the locking part 422 is moved away from the buckle 41, and the buckle ring 423 disengages from the groove provided in the hook part 411, thus releasing the lock. The latch 4 enables quick locking and unlocking of the first housing 31 and the second housing 32, improving the convenience of operation. As a further preferred embodiment, a high-temperature resistant silicone rubber sealing gasket is provided at the mating surface of the first housing 31 and the second housing 32 to reduce heat leakage from gaps, ensure the integrity of the closed heat insulation space formed by the insulation layer, and improve the temperature stability of the slow cooling area.

[0018] In this embodiment, thermocouples are installed on the fixed heating part 11 and the movable heating part 12 respectively, and the thermocouples pass through the through holes 21 provided in the insulation layer 2. The thermocouples can monitor the temperature of the fixed heating part 11 and the movable heating part 12 in real time, and control the heating temperature of the split heating jacket 1 through the electric heating control system to achieve precise temperature control, thereby improving the quality of the filament bundle.

[0019] In this embodiment, the split heating jacket 1 is equipped with an electric heating tube, which is electrically connected to the electric heating control system. The electric heating tube can respond quickly to temperature changes and provide precise temperature control. Combined with the thermocouple, it can achieve accurate temperature control.

[0020] In this embodiment, the bottom of the movable heating unit 12 is provided with a bottom flange corresponding to the top flange 111. By connecting two or more electric heating cooling blocks through the top flange 111 and the bottom flange, a longer cooling zone can be formed, creating a slow cooling zone with a gentle temperature gradient, which meets the needs of different spinning processes.

[0021] This invention is mounted on the lower side of the spinning assembly via a top flange 111. The filaments ejected from the spinneret of the spinning assembly pass through the channels provided in the split heating jacket 1, undergoing slow cooling. This results in a smoother spinning cooling curve, reducing filament damage and defects caused by rapid cooling, and improving filament quality. During production, if it is necessary to observe the slow cooling effect of the filaments, the movable heating section 12 can be opened to expose the spinneret nozzles, ensuring that the filaments ejected from the spinneret are uniform and consistent without gaps. This design also meets the requirements of certain spinning processes that require exposed heating of the filaments, improving adaptability.

[0022] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An electrically heated slow-cooling block suitable for a single-station spinning box, characterized in that: The device includes a split heating jacket (1), which includes a fixed heating part (11) and a movable heating part (12) that are hinged to each other. The fixed heating part (11) and the movable heating part (12) are connected to form a hollow cylinder for the filament bundle to pass through. The top of the fixed heating part (11) is integrally connected to a top flange (111), and the fixed heating part (11) is connected to the lower side of the spinning assembly through the top flange (111). The outer periphery of the split heating jacket (1) is wrapped with a heat insulation layer (2).

2. The electrically heated slow-cooling block for a single-station spinning box according to claim 1, characterized in that: The fixed heating part (11) is connected to a first hinge arm (112) at both ends, and the movable heating part (12) is connected to a second hinge arm (121) at both ends. The far ends of the first hinge arm (112) and the far ends of the second hinge arm (121) are hinged by a pin.

3. The electrically heated slow-cooling block for a single-station spinning box according to claim 1, characterized in that: The outer periphery of the insulation layer (2) is provided with a shell, the shell including a first shell (31) connected to the fixed heating part (11) and a second shell (32) connected to the movable heating part (12); the first shell (31) and the second shell (32) are joined to form a hollow cavity, and the insulation layer (2) is provided inside the first shell (31) and the second shell (32).

4. The electrically heated slow-cooling block for a single-station spinning box according to claim 3, characterized in that: A latch (4) is installed at the joint between the first housing (31) and the second housing (32); the latch (4) includes a latch seat (41) connected to the first housing (31) and a latch body (42) connected to the second housing (32); the latch seat (41) has a hook (411) at one end near the latch body (42); the latch body (42) includes a base (421) connected to the second housing (32) and a locking part (422) hinged to the base (421), and the locking part (422) has a latch ring (423) hinged to the hook (411) provided on the latch seat (41) for locking.

5. The electrically heated slow-cooling block for a single-station spinning box according to claim 1, characterized in that: The fixed heating part (11) and the movable heating part (12) are respectively equipped with thermocouples, and the thermocouples are inserted into the through holes (21) provided in the insulation layer (2).

6. The electrically heated slow-cooling block for a single-station spinning box according to claim 1, characterized in that: The split heating jacket (1) is equipped with an electric heating tube, which is electrically connected to the electric heating control system.

7. The electrically heated slow-cooling block for a single-station spinning box according to claim 1, characterized in that: The bottom of the active heating part (12) is provided with a bottom flange corresponding to the top flange (111).

Images