Bilateral limitable traction machine

Abstract

The utility model relates to traction machine equipment technical field discloses the traction machine of bilateral limiting can, including base, the top fixedly connected with traction box of base, the top fixedly connected with the baffle of traction box inner chamber, the left and right sides of the inner chamber of traction box and located above baffle all have positive and negative screw rod through bearing swing joint. This traction machine of bilateral limiting can, through the output end of servo motor drive positive and negative screw rod and rotate, and positive and negative screw rod utilize the effect of symmetrical thread and drive both sides screw -joint to move to the inboard side, and screw -joint drive transmission rod to move to the inboard side, and transmission rod drive the inboard side of limiting plate to move, make the inboard side of protective pad and the both sides of material contact, realize the real -time dynamic compensation of material deviation, ensure that sheet material always along the center line steady transmission, eliminate the material distortion of uneven stress of single -sided force, effectively maintained the thickness consistency of pearl wool, provided reliable physical orientation.

Description

Technical Field

[0001] This utility model relates to the field of traction machine equipment technology, specifically a traction machine with bilateral limiters. Background Technology

[0002] EPE (Expanded Polyethylene) production is a process of manufacturing cushioning packaging materials using low-density polyethylene (LDPE) as the main raw material through a physical foaming process. LDPE granules are mixed with a foaming agent and additives, then fed into an extruder for melting and plasticizing. Under high temperature and pressure, the foaming agent decomposes to generate bubbles. The melt is extruded through a die and rapidly expands to form a uniform closed-cell foam structure. After cooling, shaping, and calendering, the foamed material forms continuous foam sheets. These sheets are then slit, rolled, or die-cut according to requirements, ultimately producing EPE products with excellent cushioning, shock absorption, and thermal insulation properties, widely used in packaging protection for electronics, furniture, logistics, and other fields.

[0003] In the production of EPE foam, the stable operation of the traction machine directly affects product quality and production efficiency. When the traction system lacks necessary edge control devices, material deviation will first occur, causing the sheet to gradually deviate from the predetermined trajectory during transport, resulting in uneven winding. This deviation will intensify with the extension of production time, especially at high speeds, affecting not only the accuracy of subsequent slitting processes but also increasing the scrap rate. Secondly, due to the lack of a real-time correction mechanism, the sheet is prone to wrinkling or stretching deformation during traction, leading to uneven thickness and severely affecting the product's cushioning performance and appearance quality. Furthermore, the deviated material may rub against other mechanical parts, causing surface scratches or edge damage. More seriously, continuous deviation will lead to frequent production line shutdowns for adjustments, reducing production efficiency and increasing manual intervention costs.

[0004] To address the aforementioned issues, we have made improvements by proposing a traction machine with bilateral limiters. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a traction machine with dual-sided limiting, including a base, a traction box fixedly connected to the top of the base, a partition fixedly connected to the top of the inner cavity of the traction box, and positive and negative screws movably connected to the left and right sides of the inner cavity of the traction box above the partition via bearings. Screw sleeves are threadedly connected to the front and back sides of the surfaces of the positive and negative screws. A transmission rod is fixedly connected to the bottom of the screw sleeve, a limiting plate is fixedly connected to the bottom of the transmission rod, and a protective pad is adhered to the inner side of the limiting plate.

[0006] Preferably, servo motors for driving the rotation of the forward and reverse screws are fixedly connected to both the left and right sides of the top back of the traction box, and the output end of the servo motor is fixedly connected to the back of the forward and reverse screws.

[0007] Preferably, the top of the inner wall of the traction box is provided with sliding grooves on both the left and right sides, and the top of the screw sleeve is fixedly connected to a slider, the top of the slider being slidably connected to the inner cavity of the sliding groove.

[0008] Preferably, guide grooves are provided on both the left and right sides of the inner surface of the partition, and the bottom of the transmission rod passes through the inner cavity of the guide groove and extends to the bottom of the partition.

[0009] Preferably, a stepper motor is fixedly connected to the bottom of the back side of the traction box, and an active traction roller is fixedly connected to the output end of the stepper motor. A support frame is fixedly connected to the right side of the bottom of the traction box cavity. The right side of the active traction roller is movably connected to the left side of the support frame. A cylinder is fixedly connected to the middle of the bottom of the partition, and a movable frame is fixedly connected to the output end of the cylinder. A driven traction roller is movably connected to the inner side of the movable frame, and the surfaces of both the active traction roller and the driven traction roller are covered with silicone.

[0010] Preferably, the left and right sides of the front surface of the traction box are movably connected to the box door by hinges, the left side of the traction box has a feed inlet, and the right side of the traction box has a discharge outlet.

[0011] Compared with the prior art, this utility model provides a traction machine with bilateral limiting, which has the following beneficial effects:

[0012] 1. This double-sided limiting traction machine drives the positive and negative screws to rotate through the output end of the servo motor. The positive and negative screws use the effect of symmetrical threads to drive the two side sleeves to move inward. The sleeves drive the transmission rod to move inward, and the transmission rod drives the limiting plate to move inward, so that the inner side of the protective pad contacts the two sides of the material. This achieves real-time dynamic compensation for material deviation, ensuring that the sheet is always stably transmitted along the center line. It eliminates the material distortion caused by uneven force on one side, effectively maintains the thickness consistency of the pearl cotton, and provides reliable physical guidance. Compared with pure sensor control, it is more adaptable to high-speed production conditions.

[0013] 2. This double-sided limiting traction machine extends downward through the output end of the cylinder and drives the movable frame and driven traction roller to move downward, adjusting the distance between the driven traction roller and the active traction roller. It can adapt to pearl cotton of different thicknesses. By setting the slide groove and slider, the stability of the screw sleeve during horizontal movement can be effectively improved. By setting the guide groove, the transmission rod can be guided and limited. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from the left view.

[0018] Figure 4 This is a cross-sectional view of the present invention from the front view.

[0019] The components are as follows: 1. Base; 2. Traction box; 3. Box door; 4. Feed inlet; 5. Discharge outlet; 6. Stepper motor; 7. Active traction roller; 8. Support frame; 9. Partition plate; 10. Cylinder; 11. Movable frame; 12. Driven traction roller; 13. Servo motor; 14. Positive and negative screws; 15. Screw sleeve; 16. Transmission rod; 17. Limiting plate; 18. Slider; 19. Slide groove; 20. Guide groove; 21. Protective pad. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4A traction machine with dual-sided limiting includes a base 1. A traction box 2 is fixedly connected to the top of the base 1. A partition 9 is fixedly connected to the top of the inner cavity of the traction box 2. Both sides of the inner cavity of the traction box 2, above the partition 9, are movably connected via bearings to positive and negative screws 14. Screw sleeves 15 are threadedly connected to the front and back sides of the surfaces of the positive and negative screws 14. A transmission rod 16 is fixedly connected to the bottom of the screw sleeve 15. A limiting plate 17 is fixedly connected to the bottom of the transmission rod 16. A protective pad 21 is adhered to the inner side of the limiting plate 17. The traction box 2... Servo motors 13 for driving the rotation of the positive and negative screws 14 are fixedly connected to the left and right sides of the top of the back side. The output end of the servo motor 13 is fixedly connected to the back side of the positive and negative screws 14. Slide grooves 19 are opened on the left and right sides of the top of the inner wall of the traction box 2. A slider 18 is fixedly connected to the top of the screw sleeve 15. The top of the slider 18 is slidably connected to the inner cavity of the slide groove 19. Guide grooves 20 are opened through the left and right sides of the inner surface of the partition 9. The bottom of the transmission rod 16 passes through the inner cavity of the guide groove 20 and extends to the bottom of the partition 9.

[0022] Through the above technical solution, the output end of the servo motor 13 drives the positive and negative screws 14 to rotate. The positive and negative screws 14 use the effect of symmetrical threads to drive the two side sleeves 15 to move inward. The sleeves 15 drive the transmission rod 16 to move inward. The transmission rod 16 drives the limiting plate 17 to move inward, so that the inner side of the protective pad 21 contacts the two sides of the material, realizing real-time dynamic compensation for material deviation, ensuring that the sheet is always stably transmitted along the center line, eliminating the material distortion caused by uneven force on one side, effectively maintaining the thickness consistency of the pearl cotton, and providing reliable physical guidance. Compared with pure sensor control, it is more adaptable to high-speed production conditions.

[0023] Specifically, a stepper motor 6 is fixedly connected to the bottom of the back side of the traction box 2, and an active traction roller 7 is fixedly connected to the output end of the stepper motor 6. A support frame 8 is fixedly connected to the right side of the bottom of the traction box 2. The right side of the active traction roller 7 is movably connected to the left side of the support frame 8. A cylinder 10 is fixedly connected to the middle of the bottom of the partition plate 9. A movable frame 11 is fixedly connected to the output end of the cylinder 10. A driven traction roller 12 is movably connected to the inner side of the movable frame 11. The surfaces of the active traction roller 7 and the driven traction roller 12 are both covered with silicone. The left and right sides of the front surface of the traction box 2 are movably connected to the box door 3 through hinges. A feed port 4 is opened on the left side of the traction box 2, and a discharge port 5 is opened on the right side of the traction box 2.

[0024] Through the above technical solution, the output end of the cylinder 10 extends downward and drives the movable frame 11 and the driven traction roller 12 to move downward, thereby adjusting the distance between the driven traction roller 12 and the active traction roller 7. This can adapt to pearl cotton of different thicknesses. By setting the slide groove 19 and the slider 18, the stability of the screw sleeve 15 during horizontal movement can be effectively improved. By setting the guide groove 20, the transmission rod 16 can be guided and limited.

[0025] In use, the output end of cylinder 10 first extends downward and drives the movable frame 11 and driven traction roller 12 to move downward, adjusting the distance between driven traction roller 12 and active traction roller 7 to accommodate materials of different thicknesses. Then, the output end of servo motor 13 drives the positive and negative screws 14 to rotate. The positive and negative screws 14 use the effect of symmetrical threads to drive the two side sleeves 15 to move inward. The sleeves 15 drive the transmission rod 16 to move inward, and the transmission rod 16 drives the limit plate 17 to move inward, so that the inner side of the protective pad 21 contacts the two sides of the material, realizing real-time dynamic compensation for material deviation, ensuring that the sheet is always stably transmitted along the center line, eliminating the material distortion caused by uneven force on one side, effectively maintaining the thickness consistency of pearl cotton, and providing reliable physical guidance. Compared with pure sensor control, it is more adaptable to high-speed production conditions (the above is the working process of the entire device; the contents not described in detail in this specification are existing technologies known to those skilled in the art).

[0026] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A traction machine with bilateral limiting, comprising a base (1), characterized in that: A traction box (2) is fixedly connected to the top of the base (1). A partition (9) is fixedly connected to the top of the inner cavity of the traction box (2). Both the left and right sides of the inner cavity of the traction box (2) and above the partition (9) are movably connected to positive and negative screws (14) through bearings. The front and back sides of the surface of the positive and negative screws (14) are threaded with threaded sleeves (15). A transmission rod (16) is fixedly connected to the bottom of the threaded sleeve (15). A limit plate (17) is fixedly connected to the bottom of the transmission rod (16). A protective pad (21) is bonded to the inner side of the limit plate (17).

2. The traction machine with bilateral limiting capability according to claim 1, characterized in that: The left and right sides of the top back of the traction box (2) are fixedly connected to servo motors (13) for driving the rotation of the positive and negative screws (14), and the output end of the servo motors (13) is fixedly connected to the back of the positive and negative screws (14).

3. The traction machine with bilateral limiting capability according to claim 1, characterized in that: The top of the inner wall of the traction box (2) is provided with sliding grooves (19) on both the left and right sides. The top of the screw sleeve (15) is fixedly connected to a slider (18), and the top of the slider (18) is slidably connected to the inner cavity of the sliding groove (19).

4. The traction machine with bilateral limiting capability according to claim 1, characterized in that: Guide grooves (20) are provided on both the left and right sides of the inner surface of the partition (9), and the bottom of the transmission rod (16) passes through the inner cavity of the guide groove (20) and extends to the bottom of the partition (9).

5. The traction machine with bilateral limiting capability according to claim 1, characterized in that: A stepper motor (6) is fixedly connected to the bottom of the back side of the traction box (2). An active traction roller (7) is fixedly connected to the output end of the stepper motor (6). A support frame (8) is fixedly connected to the right side of the bottom of the traction box (2). The right side of the active traction roller (7) is movably connected to the left side of the support frame (8). A cylinder (10) is fixedly connected to the middle of the bottom of the partition (9). A movable frame (11) is fixedly connected to the output end of the cylinder (10). A driven traction roller (12) is movably connected to the inner side of the movable frame (11). The surfaces of the active traction roller (7) and the driven traction roller (12) are both covered with silicone.

6. The traction machine with bilateral limiting capability according to claim 1, characterized in that: The left and right sides of the front surface of the traction box (2) are connected to the box door (3) by hinges. The left side of the traction box (2) has a feed inlet (4) and the right side of the traction box (2) has a discharge outlet (5).

Images