Film split filament multistage drawing apparatus

Abstract

The utility model discloses membrane crack filament multistage stretching equipment, including processing platform, the four corner position of processing platform lower extreme all are fixedly set up frame, and the frame is integrated structure, the inside of processing platform is all provided with the sliding slot of front and back end, the inside of sliding slot is provided with the lead screw, and the inner wall of sliding slot is rotatively connected with lead screw, the outside of lead screw is provided with the movable frame of bushing, and movable frame and sliding slot sliding limit, and movable frame straddles processing platform, the front and back end of movable frame lower extreme all are fixedly set up with the limit plate, the inside of limit plate is provided with the limit cavity, and limit cavity is open type structure, the upper and lower of limit cavity inside all are provided with fixed base, and fixed base and limit cavity sliding limit, be provided with the printing roller between fixed base, and printing roller and fixed base rotatively connected, and this structure has solved the printing effect of film not enough good, and the problem that film is difficult to carry out position detection.

Description

Technical Field

[0001] This utility model relates to the field of thin film stretching technology, specifically to a multi-stage stretching device for film-split filaments. Background Technology

[0002] The multi-stage stretching equipment for membrane splitting filaments is the core equipment of the membrane splitting process. Through a continuous process of "indentation - multi-stage stretching - shaping", it transforms molten polymer films into ultra-thin fiber webs. The multi-stage stretching equipment for membrane splitting filaments typically consists of an indentation system, a multi-stage stretching unit, a temperature control and insulation system, a tension control system, and a dustproof and safety system. In use, raw materials such as polypropylene or polyethylene are extruded into a continuous film through a die. The film is then patterned by a etched roller, heated and softened, and then enters the stretching zone. The differential stretching of the two rollers causes the indentation to break and unfold into a fiber network. The multi-stage stretching equipment for membrane splitting filaments is widely used in medical protection, industrial packaging, and sanitary materials.

[0003] For example, Chinese patent CN213172707U, entitled "A High-Efficiency Drag Device for Membrane Disruption," includes a workbench. A dustproof outer shell is installed on the upper end of the workbench and welded to it. A dustproof safety door is installed on the front face of the dustproof outer shell and connected to it via a hinge. A guide is installed on one side of the upper surface of the workbench and connected to it via screws. An embossing bracket is installed on the upper end of the workbench and welded to it. An embossing roller is installed inside the embossing bracket and connected to it via a bearing. A heating bracket is installed on the upper surface of the workbench, and a heating roller is installed inside it.

[0004] While the existing technologies can achieve film stretching, in practical use, the film printing effect is not good enough. The printing mechanism is usually fixed on the device, which can easily lead to uneven printing and reduce the printing effect. On the other hand, it is difficult to detect the position of the film. When stretching the film, the film is prone to positional displacement under tension interference, which can lead to excessive local tension when stretching the film, thus increasing the risk of film breakage. Therefore, it does not meet the current needs. In response, we have proposed a multi-stage stretching device for film splitting filaments. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage stretching device for film splitting filaments to solve the problems mentioned in the background art, such as the poor printing effect of the film and the difficulty in detecting the position of the film.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage stretching device for membrane splitting filaments, including a processing table. A frame is fixedly installed at each of the four corners of the lower end of the processing table. The frame is an integrated structure. Slide grooves are provided at both the front and rear ends inside the processing table. A lead screw is installed inside the slide groove and is rotatably connected to the inner wall of the slide groove. A movable frame is sleeved on the outside of the lead screw. The movable frame slides and is limited by the slide groove, and spans the processing table. Limiting plates are fixedly installed at both the front and rear ends of the lower end of the movable frame. Limiting cavities are provided inside the limiting plates. The limiting cavities are open structures. Fixed seats are provided above and below the limiting cavities. The fixed seats slide and are limited by the limiting cavities. A printing roller is installed between the fixed seats and is rotatably connected to the fixed seats.

[0007] Preferably, servo motors are fixedly installed at both the front and rear ends on the outer side of the processing table, the output shaft of the servo motor extends into the interior of the slide groove, and the output shaft of the servo motor is fixedly connected to the lead screw.

[0008] Preferably, a first fixing frame is fixedly installed on one side of the upper end of the processing table, and a second fixing frame is fixedly installed on the other side of the upper end of the processing table. A mounting plate is fixedly installed on the side of the first fixing frame and the second fixing frame near the center of the processing table. A second hydraulic telescopic device is fixedly installed at one end of the outer side of the mounting plate. The telescopic end of the second hydraulic telescopic device extends to the other end of the mounting plate. A correction sensor is fixedly installed at one end of the telescopic end of the second hydraulic telescopic device.

[0009] Preferably, the front and rear ends of the upper end of the movable frame and the lower end of the limiting plate are all fixedly provided with the telescopic ends of the first hydraulic telescopic device extending into the interior of the limiting cavity and fixedly connected to the fixed seat.

[0010] Preferably, a stretching roller is provided above and below the first fixed frame and the second fixed frame, the stretching roller is rotatably connected to the first fixed frame and the second fixed frame, and the position of the stretching roller corresponds to that of the printing roller.

[0011] Preferably, a first tension motor is fixedly installed above and below the front end of the first fixed frame, and the output shaft of the first tension motor extends between the first fixed frames and is fixedly connected to the tension roller. A second tension motor is fixedly installed above and below the front end of the second fixed frame, and the output shaft of the second tension motor extends between the second fixed frames and is fixedly connected to the tension roller.

[0012] Preferably, a drive motor is fixedly installed on one side of the fixed base, and the output shaft of the drive motor extends to the other side of the fixed base and is fixedly connected to the printing roller. A control panel is fixedly installed at the front end of the movable frame. The control panel is electrically connected to the servo motor, the first hydraulic telescopic device, the drive motor, the first stretching motor, the second stretching motor, the second hydraulic telescopic device, and the correction sensor.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) The present invention can adjust the position of the printing roller by means of the lead screw and the moving frame. When the printing process is carried out, the film stretching operation has been completed. At this time, the operator turns on the servo motor and the drive motor through the control panel and adjusts the servo motor and the drive motor to a suitable speed. At this time, the output shaft of the servo motor drives the lead screw to rotate, and the moving frame moves in the slide through the lead screw. At the same time, the printing mechanism set below the moving frame moves until the moving frame is adjusted to a suitable position. The rotation direction of the output shaft of the servo motor is changed through the control panel, so that the moving frame moves back and forth on the processing table. During this process, the printing roller rotates slowly and uniformly under the action of the drive motor, thereby improving the effect of film printing.

[0014] (2) This utility model can detect the position of the film by means of the second hydraulic telescopic device and the correction sensor. Before stretching the film, the film is fixed on the stretching roller and adjusted to the center position of the stretching roller. Then the operator adjusts the position of the correction sensor according to the actual position of the film. At this time, the operator turns on the second hydraulic telescopic device through the control panel, so that the telescopic end of the second hydraulic telescopic device extends. The extension of the telescopic end of the second hydraulic telescopic device pushes the correction sensor to move until the correction sensor is adjusted to a suitable position. If the film deviates in position during the stretching process, the film enters the interior of the correction sensor and the correction sensor issues an alarm. Then the operator adjusts the position of the film to avoid local overstretching of the film.

[0015] (3) The present invention can adjust the distance between the printing rollers by means of the first hydraulic telescopic device and the fixed seat. When printing is performed, the film stretching operation has been completed. At this time, the operator can turn on the first hydraulic telescopic device through the control panel, so that the telescopic end of the first hydraulic telescopic device extends. The extension of the telescopic end of the first hydraulic telescopic device pushes the fixed seat to slide in the limiting cavity. At the same time, the printing rollers between the fixed seats move towards each other until the printing rollers are moved to the appropriate position, and then the subsequent printing operation is carried out. This improves the uniformity and quality of printing, and avoids the film from being contaminated with paint when it is stretched. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a front view of the internal structure of this utility model; Figure 3 This is a side view of the internal structure of this utility model; Figure 4 For the present utility model Figure 3Enlarged view of a portion of region A in the middle.

[0017] In the diagram: 1. Processing table; 2. Frame; 3. Slide groove; 4. Servo motor; 5. Lead screw; 6. Moving frame; 7. First hydraulic telescopic device; 8. Limiting plate; 9. Drive motor; 10. Limiting cavity; 11. Printing roller; 12. Control panel; 13. First fixed frame; 14. Stretching roller; 15. First stretching motor; 16. Second fixed frame; 17. Second stretching motor; 18. Mounting plate; 19. Second hydraulic telescopic device; 20. Correction sensor; 21. Fixed base. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figure 1-4 This utility model provides an embodiment of a multi-stage stretching device for membrane splitting filaments, including a processing table 1. Frames 2 are fixedly installed at the four corners of the lower end of the processing table 1. The frames 2 are an integrated structure. Stretching rollers 14 are installed above and below the first fixed frame 13 and the second fixed frame 16. The stretching rollers 14 are rotatably connected to the first fixed frame 13 and the second fixed frame 16, and their positions correspond to those of the printing rollers 11. A first stretching motor 15 is fixedly installed above and below the front end of the first fixed frame 13. The output shaft of the first stretching motor 15 extends between the first fixed frames 13 and is fixedly connected to the stretching rollers 14. A second stretching motor 17 is fixedly installed above and below the front end of the second fixed frame 16. The output shaft of the second stretching motor 17 extends between the second fixed frames 16 and is fixedly connected to the stretching roller 14. A drive motor 9 is fixedly installed on one side of the fixed base 21. The output shaft of the drive motor 9 extends to the other side of the fixed base 21 and is fixedly connected to the printing roller 11. A control panel 12 is fixedly installed at the front end of the movable frame 6. The control panel 12 is electrically connected to the servo motor 4, the first hydraulic telescopic device 7, the drive motor 9, the first stretching motor 15, the second stretching motor 17, the second hydraulic telescopic device 19, and the correction sensor 20.

[0020] Please see Figure 1 , Figure 2 and Figure 3The processing table 1 has a sliding groove 3 at both the front and rear ends. A lead screw 5 is installed inside the sliding groove 3 and is rotatably connected to the inner wall of the sliding groove 3. A movable frame 6 is sleeved on the outside of the lead screw 5 and slides and limits the sliding of the sliding groove 3. The movable frame 6 spans across the processing table 1. Limiting plates 8 are fixedly installed at the front and rear ends of the lower end of the movable frame 6. Limiting cavities 10 are installed inside the limiting plates 8. The limiting cavities 10 are open structures. Fixed seats 21 are installed at the upper and lower parts inside the limiting cavities 10 and slide and limit the limiting of the limiting cavities 10. A printing roller 11 is installed between the fixed seats 21 and is rotatably connected to the fixed seats 21. A servo motor 4 is fixedly installed at both the front and rear ends on one side of the processing table 1. The output shaft of the servo motor 4 extends into the sliding groove 3 and is fixedly connected to the lead screw 5, so as to facilitate the adjustment of the position of the printing roller 11 by the servo motor 4.

[0021] Please see Figure 1 and Figure 2 A first fixing frame 13 is fixedly installed on one side of the upper end of the processing table 1, and a second fixing frame 16 is fixedly installed on the other side of the upper end of the processing table 1. A mounting plate 18 is fixedly installed on the side of the first fixing frame 13 and the second fixing frame 16 near the center of the processing table 1. A second hydraulic telescopic device 19 is fixedly installed on one end of the outer side of the mounting plate 18. The telescopic end of the second hydraulic telescopic device 19 extends to the other end of the mounting plate 18. A correction sensor 20 is fixedly installed on one end of the telescopic end of the second hydraulic telescopic device 19. The correction sensor 20 is of model US2014 / 50, which facilitates the position detection of the film through the correction sensor 20.

[0022] Please see Figure 1 , Figure 3 and Figure 4 The front and rear ends of the upper end of the movable frame 6 and the lower end of the limiting plate 8 are all fixedly provided with the telescopic ends of the first hydraulic telescopic device 7 extending into the interior of the limiting cavity 10 and fixedly connected to the fixed seat 21, so as to facilitate the adjustment of the spacing of the printing roller 11 through the first hydraulic telescopic device 7.

[0023] Working principle: In use, first fix the film on the stretching roller 14 and adjust the film to the center position of the stretching roller 14. Then, the operator adjusts the position of the correction sensor 20 according to the actual position of the film. At this time, the operator activates the second hydraulic telescopic device 19 through the control panel 12, causing the telescopic end of the second hydraulic telescopic device 19 to extend. The extension of the telescopic end of the second hydraulic telescopic device 19 pushes the correction sensor 20 to move until the correction sensor 20 is adjusted to the appropriate position. If the film deviates in position during the stretching process, the film enters the interior of the correction sensor 20 and the correction sensor 20 issues an alarm. The operator then adjusts the position of the film and clamps the film through the stretching roller 14. The first stretching motor 15 rotates faster than the second stretching motor 17. When printing is performed, the operator activates the second stretching motor 17 through the control panel 12. The first hydraulic telescopic device 7 is activated, causing its telescopic end to extend. This extension pushes the fixed seat 21 to slide within the limiting cavity 10. Simultaneously, the printing rollers 11 between the fixed seats 21 move towards each other until they reach the appropriate position. Then, the operator activates the servo motor 4 and drive motor 9 via the control panel 12 and adjusts them to suitable speeds. The output shaft of the servo motor 4 drives the lead screw 5 to rotate, which in turn drives the moving frame 6 to move within the slide groove 3. Simultaneously, the printing mechanism located below the moving frame 6 moves until it reaches the appropriate position. The operator then changes the rotation direction of the servo motor 4's output shaft via the control panel 12, causing the moving frame 6 to reciprocate on the processing table 1. During this process, the printing rollers 11 rotate slowly and uniformly under the action of the drive motor 9.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-stage stretching device for membrane splitting filaments, comprising a processing table (1), wherein frames (2) are fixedly installed at the four corners of the lower end of the processing table (1), and the frames (2) are an integrated structure, characterized in that: The processing table (1) is provided with a sliding groove (3) at both the front and rear ends. A lead screw (5) is provided inside the sliding groove (3). The lead screw (5) is rotatably connected to the inner wall of the sliding groove (3). A movable frame (6) is sleeved on the outside of the lead screw (5). The movable frame (6) slides and limits the sliding groove (3). The movable frame (6) spans across the processing table (1). A limiting plate (8) is fixedly provided at both the front and rear ends of the lower end of the movable frame (6). A limiting cavity (10) is provided inside the limiting plate (8). The limiting cavity (10) is an open structure. A fixed seat (21) is provided above and below the limiting cavity (10). The fixed seat (21) slides and limits the limiting cavity (10). A printing roller (11) is provided between the fixed seats (21). The printing roller (11) is rotatably connected to the fixed seat (21).

2. The multi-stage stretching device for membrane splitting filaments according to claim 1, characterized in that: Servo motors (4) are fixedly installed at the front and rear ends of the outer side of the processing table (1). The output shaft of the servo motor (4) extends into the interior of the slide groove (3). The output shaft of the servo motor (4) is fixedly connected to the lead screw (5).

3. The multi-stage stretching device for membrane splitting filaments according to claim 2, characterized in that: A first fixing frame (13) is fixedly installed on one side of the upper end of the processing table (1), and a second fixing frame (16) is fixedly installed on the other side of the upper end of the processing table (1). A mounting plate (18) is fixedly installed on the side of the first fixing frame (13) and the second fixing frame (16) near the center of the processing table (1). A second hydraulic telescopic device (19) is fixedly installed on one end of the outside of the mounting plate (18). The telescopic end of the second hydraulic telescopic device (19) extends to the other end of the mounting plate (18). A correction sensor (20) is fixedly installed on one end of the telescopic end of the second hydraulic telescopic device (19).

4. The multi-stage stretching device for membrane splitting filaments according to claim 3, characterized in that: The front and rear ends of the upper end of the mobile frame (6) and the lower end of the limiting plate (8) are all fixedly provided with the telescopic ends of the first hydraulic telescopic device (7) extending into the interior of the limiting cavity (10) and fixedly connected to the fixed seat (21).

5. The multi-stage stretching device for membrane splitting filaments according to claim 4, characterized in that: A stretching roller (14) is provided above and below the first fixed frame (13) and the second fixed frame (16). The stretching roller (14) is rotatably connected to the first fixed frame (13) and the second fixed frame (16), and the stretching roller (14) is in position corresponding to the printing roller (11).

6. The multi-stage stretching device for membrane splitting filaments according to claim 5, characterized in that: A first tension motor (15) is fixedly installed above and below the front end of the first fixed frame (13). The output shaft of the first tension motor (15) extends between the first fixed frames (13) and is fixedly connected to the tension roller (14). A second tension motor (17) is fixedly installed above and below the front end of the second fixed frame (16). The output shaft of the second tension motor (17) extends between the second fixed frames (16) and is fixedly connected to the tension roller (14).

7. The multi-stage stretching device for membrane splitting filaments according to claim 6, characterized in that: A drive motor (9) is fixedly installed on one side of the fixed base (21). The output shaft of the drive motor (9) extends to the other side of the fixed base (21) and is fixedly connected to the printing roller (11). A control panel (12) is fixedly installed at the front end of the moving frame (6). The control panel (12) is electrically connected to the servo motor (4), the first hydraulic telescopic device (7), the drive motor (9), the first stretching motor (15), the second stretching motor (17), the second hydraulic telescopic device (19), and the correction sensor (20).

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