Thermal shrinkage furnace for nylon monofilament production
By introducing regulating and purifying components into the heat shrink furnace used for nylon monofilament production, the problems of tension control and gas purification have been solved, achieving efficient production and environmentally friendly emissions of nylon monofilament.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-06
AI Technical Summary
Existing heat shrink ovens used in nylon monofilament production cannot achieve precise tension control, leading to problems such as monofilament breakage or loosening and entanglement during heat shrinkage, which reduces product qualification rate and production efficiency.
The design incorporates an adjustment component and a purification component. The adjustment component uses a motor-driven rack and pinion structure to make minute adjustments to the tension of the nylon monofilament, while the purification component uses an activated carbon filter to purify the gas inside the furnace, ensuring that gas emissions meet environmental protection standards.
It achieves precise control over the tension of nylon monofilaments, avoiding breakage and loosening, improving product qualification rate and production efficiency, while simplifying the replacement process of activated carbon filters and reducing maintenance time and costs.
Smart Images
Figure CN223974265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat shrink ovens, and more particularly to a heat shrink oven for the production of nylon monofilaments. Background Technology
[0002] Nylon monofilament is a synthetic fiber made of nylon. It possesses properties such as high strength, abrasion resistance, corrosion resistance, and chemical resistance, while also exhibiting good flexibility and elasticity. It is widely used in fisheries, textiles, medical, and industrial fields.
[0003] In the existing technology, heat shrink furnaces used for nylon monofilament production often have difficulty in achieving precise tension control. During the heat shrinking of nylon monofilaments, due to the inability to make minute tension adjustments, problems often arise such as excessive tension causing monofilament breakage, or insufficient tension causing monofilaments to loosen and entangle in the furnace, which reduces the product qualification rate and production efficiency.
[0004] To address the above problems, a heat shrinking furnace for nylon monofilament production is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a heat shrink oven for nylon monofilament production, aiming to improve the problem that existing heat shrink ovens for nylon monofilament production often have difficulty in achieving precise tension control. During the heat shrinking of nylon monofilaments, due to the inability to make minute tension adjustments, excessive tension often leads to monofilament breakage, or insufficient tension causes the monofilaments to loosen and entangle in the oven, thus reducing the product qualification rate and production efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat shrink furnace for nylon monofilament production, comprising a heat shrink furnace body, two connecting plates fixedly connected to the left and right sides of the heat shrink furnace body, two guide rollers rotatably connected between the two connecting plates, an adjustment component provided on the outer side of the left connecting plate, and a purification component provided inside the heat shrink furnace body.
[0007] The adjustment assembly includes a connecting shell, the outer side of which is fixedly connected to the outer side of the connecting plate on the left. A motor is fixedly connected to the outer side of the connecting shell, a rotating shaft is fixedly connected to the output end of the motor, a gear is fixedly connected to the outer side of the rotating shaft, a rack is slidably connected inside the connecting shell, a slider is fixedly connected to the outer side of the rack, an adjustment roller is rotatably connected between the two sliders, and the rack and the gear are meshed together.
[0008] As a further description of the above technical solution:
[0009] The purification assembly includes a purification box, which is fixedly connected to the top of the heat shrink oven body on the outside. An air inlet pipe is fixedly connected to the middle of the bottom of the purification box, and an air inlet head is fixedly connected to the bottom end of the air inlet pipe. An air outlet pipe is fixedly connected to the top of the purification box. A fan is installed on the upper side of the inner wall of the purification box. An activated carbon filter is slidably connected inside the purification box. Two fixing components are provided on the outside of the purification box.
[0010] As a further description of the above technical solution:
[0011] The fixing component includes a thin shell one, which is fixedly connected to the outside of the purification box. A thin shell two is fixedly connected to the top of the thin shell one. A pull rod is slidably connected inside the thin shell one. A spring is sleeved on the outside of the pull rod. A baffle is fixedly connected to the outside of the pull rod. A blocking block is provided on the top of the baffle.
[0012] As a further description of the above technical solution:
[0013] One end of the spring is fixedly connected to the outside of the baffle, and the other end of the spring is fixedly connected to the inner wall of the thin shell.
[0014] As a further description of the above technical solution:
[0015] The outer side of the baffle is slidably connected to the inner wall of the thin shell, and the pull rod passes through the purification box and is inserted into the activated carbon filter.
[0016] As a further description of the above technical solution:
[0017] The upper outer side of the blocking block is slidably connected to the outer side of the second thin shell, and the lower outer side of the blocking block is slidably connected to the inside of the first thin shell.
[0018] As a further description of the above technical solution:
[0019] The slider is slidably connected to the inside of the connecting shell on its outer side, and the end of the rotating shaft away from the motor is rotatably connected to the inside of the connecting shell.
[0020] As a further description of the above technical solution:
[0021] The outer side of the air inlet pipe is fixedly connected to the inside of the heat shrink oven body.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the motor drives the rotating shaft to rotate, which in turn causes the gear to rotate, making the rack slide inside the connecting shell. At the same time, the slider fixed on the rack slides, and the adjusting roller moves up and down accordingly, realizing a small adjustment of the tension. This ensures that the nylon monofilament maintains a suitable tension during the heat shrinking process, avoiding problems such as monofilament breakage due to excessive tension or loosening and tangling of the monofilament in the furnace due to insufficient tension. This improves the product qualification rate and production efficiency.
[0024] 2. In this utility model, by pulling the lever, the baffle is compressed and the lever is completely removed from the activated carbon filter. The blocking block moves to the second position of the thin shell to prevent the lever from being reinserted. The activated carbon filter is then removed and replaced. After the new activated carbon filter is aligned and inserted, the blocking block is pulled up, and the spring pushes the baffle to re-insert the lever, completing the installation. This achieves the filtration and purification of the gas inside the furnace, effectively removing these pollutants and ensuring that the discharged gas meets environmental protection standards, reducing pollution to the atmospheric environment. At the same time, the activated carbon filter can be easily removed and installed without complicated tools and operating procedures, greatly saving maintenance time and labor costs. Attached Figure Description
[0025] Figure 1 A perspective view of a heat shrink furnace for producing nylon monofilament according to this utility model;
[0026] Figure 2 This is a schematic diagram of the purification chamber of a heat shrink oven for nylon monofilament production proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the gear structure of a heat shrink furnace for producing nylon monofilament according to the present invention;
[0028] Figure 4 This is a schematic diagram of the structure of the activated carbon filter screen for a heat shrink furnace used in the production of nylon monofilaments according to this utility model.
[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0030] Legend:
[0031] 1. Heat shrink oven body; 2. Connecting plate; 3. Guide roller; 4. Connecting shell; 5. Motor; 6. Rotating shaft; 7. Gear; 8. Rack; 9. Slider; 10. Adjusting roller; 11. Purification box; 12. Air inlet pipe; 13. Air inlet head; 14. Air outlet pipe; 15. Fan; 16. Activated carbon filter; 17. Thin shell one; 18. Thin shell two; 19. Pull rod; 20. Spring; 21. Baffle; 22. Barrier block. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figure 1 - Figure 5 An embodiment of this utility model is provided: a heat shrink oven for producing nylon monofilament, including a heat shrink oven body 1, two connecting plates 2 are fixedly connected to the left and right sides of the heat shrink oven body 1, two guide rollers 3 are rotatably connected between the two connecting plates 2, an adjustment component is provided on the outer side of the left connecting plate 2, and a purification component is provided inside the heat shrink oven body 1.
[0034] The adjustment assembly includes a connecting shell 4, which is fixedly connected to the outside of the left connecting plate 2. A motor 5 is fixedly connected to the outside of the connecting shell 4. A rotating shaft 6 is fixedly connected to the output end of the motor 5. A gear 7 is fixedly connected to the outside of the rotating shaft 6. A rack 8 is slidably connected inside the connecting shell 4. A slider 9 is fixedly connected to the outside of the rack 8. An adjusting roller 10 is rotatably connected between the two sliders 9. The rack 8 and the gear 7 are meshed together.
[0035] Specifically, the heat shrink oven body 1 is the core load-bearing component of the entire heat shrink oven for nylon monofilament production, providing the working space for the heat shrinking of nylon monofilaments. Connecting plates 2 are fixed to the left and right sides of the heat shrink oven body 1, used to connect and support guide rollers 3. Guide rollers 3 are rotatably connected between the two connecting plates 2, guiding the nylon monofilaments in and out of the heat shrink oven body 1. An adjusting assembly is used to adjust the tension of the nylon monofilaments. A connecting shell 4 is used to fix the motor 5 and provide sliding space for the rack 8 and slider 9. The motor 5 acts as a power source, driving the rotating shaft 6 to rotate through its output end. The rotating shaft 6 transmits the power of the motor 5, causing the gear 7 fixed to its outer side to rotate accordingly. The gear 7 meshes with the rack 8, converting the rotational motion of the motor 5 into the linear motion of the rack 8. The rack 8 slides within the connecting shell 4, driving the slider 9 fixed to its outer side to move. The slider 9 supports the adjusting roller 10, allowing it to move up and down with the movement of the rack 8. The adjusting roller 10 is rotatably connected between the two sliders 9, adjusting the tension of the nylon monofilaments by moving up and down. The purification component is installed inside the heat shrink oven body 1 to purify the gas generated during the heat shrinking process.
[0036] Reference Figure 4The purification assembly includes a purification box 11, which is fixedly connected to the top of the heat shrink oven body 1 on the outside. An air inlet pipe 12 is fixedly connected to the middle of the bottom of the purification box 11, and an air inlet head 13 is fixedly connected to the bottom end of the air inlet pipe 12. An air outlet pipe 14 is fixedly connected to the top of the purification box 11. A fan 15 is installed on the upper side of the inner wall of the purification box 11. An activated carbon filter screen 16 is slidably connected inside the purification box 11. Two fixing components are provided on the outside of the purification box 11.
[0037] Specifically, the purification chamber 11 houses the activated carbon filter 16 and provides space for gas purification. The inlet pipe 12 introduces gas from the heat shrink oven body 1 into the purification chamber 11. The inlet head 13 disperses the gas, allowing it to enter the inlet pipe 12 more evenly. The outlet pipe 14 discharges the purified gas. The fan 15 promotes faster gas flow from the heat shrink oven through the inlet pipe 12 into the purification chamber 11. The activated carbon filter 16 filters and purifies impurities and harmful substances in the gas. The fixing assembly secures the activated carbon filter 16, ensuring its stable position during purification and facilitating its filtration and purification function.
[0038] Reference Figure 5 The fixing components include a thin shell 17, which is fixedly connected to the outside of the purification box 11. A thin shell 28 is fixedly connected to the top of the thin shell 17. A pull rod 19 is slidably connected inside the thin shell 17. A spring 20 is sleeved on the outside of the pull rod 19. A baffle 21 is fixedly connected to the outside of the pull rod 19. A blocking block 22 is provided on the top of the baffle 21.
[0039] Specifically, the thin shell 17 provides space for the installation and sliding of the pull rod 19, spring 20, and baffle 21. The thin shell 18 cooperates with the blocking block 22 to limit the movement range of the blocking block 22 and prevent the pull rod 19 from returning to its original position. The pull rod 19 is used to fix and remove the activated carbon filter 16. The spring 20 provides elasticity so that the pull rod 19 remains inserted into the activated carbon filter 16 when no external force is applied. The baffle 21 slides on the inner wall of the thin shell 17 to compress the spring 20 and interact with the blocking block 22 to control the position of the pull rod 19. The blocking block 22 prevents the pull rod 19 from being reinserted into the filter under the action of the spring 20 when it is pulled out of the activated carbon filter 16.
[0040] Reference Figure 1 - Figure 5One end of spring 20 is fixedly connected to the outside of baffle 21, and the other end of spring 20 is fixedly connected to the inner wall of thin shell 17. The outside of baffle 21 is slidably connected to the inner wall of thin shell 17. Pull rod 19 passes through purification box 11 and is inserted into activated carbon filter 16. The upper outer side of blocking block 22 is slidably connected to the outside of thin shell 28. The lower outer side of blocking block 22 is slidably connected to the inside of thin shell 17. The outer side of slider 9 is slidably connected to the inside of connecting shell 4. The end of rotating shaft 6 away from motor 5 is rotatably connected to the inside of connecting shell 4. The outer side of air inlet pipe 12 is fixedly connected to the inside of heat shrink oven body 1.
[0041] Specifically, spring 20 provides elasticity, allowing baffle 21 to maintain the pull rod 19 inserted inside the activated carbon filter 16 when no external force is applied. Baffle 21 compresses spring 20 and, in conjunction with blocking block 22, controls the position of pull rod 19. Pull rod 19 passes through purification chamber 11 and is inserted inside activated carbon filter 16 to fix the activated carbon filter 16 and prevent it from shaking during purification. Block 22 prevents pull rod 19 from being reinserted under the action of spring 20 when it is pulled out of activated carbon filter 16, facilitating filter replacement. The outer side of slider 9 slides inside connecting shell 4 to support adjusting roller 10 and allow adjusting roller 10 to move smoothly up and down with the movement of rack 8 to adjust the tension of nylon monofilament. Rotating shaft 6 stably transmits power from motor 5, enabling gear 7 to rotate smoothly. Air inlet pipe 12 introduces gas from heat shrink furnace body 1 into purification chamber 11 for purification treatment.
[0042] Working Principle: In this heat shrink oven for nylon monofilament production, the nylon monofilament enters the oven body 1 through the guide rollers 3 between the connecting plates 2 on both sides. When adjusting the tension of the nylon monofilament, the motor 5 in the adjustment assembly is activated. The output of the motor 5 drives the rotating shaft 6 to rotate, and the gear 7 fixed on the rotating shaft 6 rotates accordingly. Since the gear 7 meshes with the rack 8, the rack 8 slides within the connecting shell 4, simultaneously driving the slider 9 fixed on the rack 8 to slide. The adjusting roller 10 then moves up and down, achieving minute adjustments to the tension. This ensures that the nylon monofilament maintains appropriate tension throughout the heat shrinking process, preventing monofilament breakage due to excessive tension or loosening and tangling due to insufficient tension within the oven. This improves product qualification rate and production efficiency.
[0043] When the heat shrink oven body 1 is working, the gas inside the oven enters the purification box 11 through the air inlet pipe 12 and the air inlet head 13. The fan 15 is started to accelerate the gas flow, so that the gas is filtered and purified through the activated carbon filter screen 16. The purified gas is then discharged through the air outlet pipe 14. When the activated carbon filter 16 needs to be replaced, operate the fixing component and pull the lever 19. The lever 19 moves the baffle 21, compressing the spring 20, until the lever 19 is completely removed from the inside of the activated carbon filter 16. At the same time, the blocking block 22 moves accordingly. When the blocking block 22 moves to the thin shell 18, it can prevent the baffle 21 from driving the lever 19 to re-insert into the activated carbon filter 16 under the action of the spring 20. The activated carbon filter 16 can then be removed for replacement. When replacing, align the new activated carbon filter 16 with the purification box 11 and insert it. Then pull the blocking block 22 upward. Under the action of the spring 20, the baffle 21 moves, thereby driving the lever 19 to re-insert into the activated carbon filter 16. At this time, the installation is completed, and the gas inside the furnace is filtered and purified. It can effectively remove these pollutants, so that the discharged gas meets environmental protection standards and reduces pollution to the atmospheric environment. At the same time, the activated carbon filter 16 can be easily removed and installed without complicated tools and operating procedures, which greatly saves maintenance time and labor costs.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heat shrinkage oven for nylon monofilament production, comprising a heat shrinkage oven main body (1), characterized in that: Both left and right sides of the heat shrinkage furnace body (1) are fixedly connected with two connecting plates (2), two guide rollers (3) are rotatably connected between the two connecting plates (2), and an adjusting assembly is arranged on the outer side of the left connecting plate (2); the heat shrinkage furnace body (1) is internally provided with a purification assembly; The adjusting assembly comprises a connecting shell (4) fixedly connected to the outer side of the left connecting plate (2), a motor (5) fixedly connected to the outer side of the connecting shell (4), a rotating shaft (6) fixedly connected to the output end of the motor (5), a gear (7) fixedly connected to the outer side of the rotating shaft (6), a rack (8) slidably connected to the inside of the connecting shell (4), a sliding block (9) fixedly connected to the outer side of the rack (8), and an adjusting roller (10) rotatably connected between the two sliding blocks (9), and the rack (8) and the gear (7) are in meshing connection.
2. The heat shrinkage oven for nylon monofilament production according to claim 1, characterized in that: The purification assembly comprises a purification box (11) fixedly connected to the top of the heat shrinkage furnace body (1), an air inlet pipe (12) fixedly connected to the bottom middle of the purification box (11), an air inlet head (13) fixedly connected to the bottom end of the air inlet pipe (12), an air outlet pipe (14) fixedly connected to the top of the purification box (11), a fan (15) installed on the inner wall of the purification box (11), an activated carbon filter screen (16) slidably connected to the inside of the purification box (11), and two fixing assemblies arranged on the outer side of the purification box (11).
3. The heat shrinkage oven for nylon monofilament production according to claim 2, characterized in that: The fixing assembly comprises a thin shell one (17) fixedly connected to the outer side of the purification box (11), a thin shell two (18) fixedly connected to the top of the thin shell one (17), a pull rod (19) slidably connected to the inside of the thin shell one (17), a spring (20) sleeved on the outer side of the pull rod (19), a baffle (21) fixedly connected to the outer side of the pull rod (19), and a blocking block (22) arranged on the top of the baffle (21).
4. The heat shrink oven for nylon monofilament production according to claim 3, characterized in that: One end of the spring (20) is fixedly connected to the outer side of the baffle (21), and the other end of the spring (20) is fixedly connected to the inner wall of the thin shell one (17).
5. The heat shrink oven for nylon monofilament production according to claim 3, characterized in that: The outer side of the baffle (21) is slidably connected to the inner wall of the thin shell one (17), and the pull rod (19) penetrates through the purification box (11) and is inserted into the inside of the activated carbon filter screen (16).
6. The heat shrink oven for nylon monofilament production according to claim 3, characterized in that: The outer side of the upper part of the blocking block (22) is slidably connected to the outer side of the thin shell two (18), and the outer side of the lower part of the blocking block (22) is slidably connected to the inside of the thin shell one (17).
7. The heat shrink oven for nylon monofilament production according to claim 1, characterized in that: The outer side of the sliding block (9) is slidably connected to the inside of the connecting shell (4), and the end of the rotating shaft (6) away from the motor (5) is rotatably connected to the inside of the connecting shell (4).
8. The heat shrink oven for nylon monofilament production according to claim 2, characterized in that: The outer side of the air inlet pipe (12) is fixedly connected to the inside of the heat shrinkage furnace body (1).