Sanitary napkin core material deviation rectifying device

Abstract

The utility model discloses a sanitary towel core body material deviation rectifying device which comprises a linear sliding table, a material edge detection assembly, a material belt deviation rectifying assembly and a main controller. The material edge detection assembly comprises a fixing frame erected behind the linear sliding table and two material edge detectors installed on frame rods of the fixing frame, the two material edge detectors are oppositely arranged, and material edge detection openings are formed in the adjacent sides of the two material edge detectors. The material belt deviation rectifying assembly comprises a base installed on a sliding seat of the linear sliding table, a deviation rectifying rotating frame which can rotate relative to the base and is arranged above the base, a roll shaft installed on the deviation rectifying rotating frame, a deviation rectifying driving unit and a centering sensor, wherein the deviation rectifying driving unit and the centering sensor are installed at the rear end of the base. A rotating fulcrum is arranged between the middle of the front end of the base and the middle of the front end of the deviation rectifying rotating frame, and the rotating fulcrum provides a fulcrum for rotation of the deviation rectifying rotating frame. The deviation rectifying driving unit is used for driving the deviation rectifying rotating frame to rotate around the rotating fulcrum, so that the roller shaft moves according to an arc-shaped track during deviation rectifying. According to the utility model, the automatic deviation correction of the sanitary towel core material can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary napkin core material conveying equipment, in particular to a sanitary napkin core material deviation correcting device. Background Art

[0002] In the existing sanitary napkin production process, the sanitary napkin core material may be laterally offset during the compounding process with the sanitary napkin body for various reasons, causing the sanitary napkin core material to deviate from the midline position of the sanitary napkin, making the sanitary napkin core unable to accurately absorb liquid, thereby increasing the scrap rate of the finished sanitary napkin and raising production costs. Therefore, it is necessary to adjust the lateral offset of the sanitary napkin core material. In the existing technology, the position of the sanitary napkin core material is generally corrected in advance by setting a hardware limit structure before compounding the sanitary napkin core material. However, this method has a poor correction effect and is prone to wrinkling of the sanitary napkin core material, which also wastes the sanitary napkin core material and cannot reduce the scrap rate of the finished sanitary napkin. Utility Model Content

[0003] The purpose of the utility model is to provide a device for correcting the deviation of the core material of a sanitary napkin.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A device for correcting the deviation of a sanitary napkin core material includes a linear slide, a material edge detection assembly, a material strip correcting assembly, and a main controller; the material edge detection assembly includes a fixed frame mounted behind the linear slide and two material edge detectors mounted on the frame rods of the fixed frame, the two material edge detectors being arranged opposite to each other and having material edge detection ports formed on adjacent sides;

[0006] The strip deflection correction assembly includes a base mounted on the slide of the linear slide, a deflection correction turret arranged above the base and capable of rotating relative to the base, a roller mounted on the deflection correction turret, and a deflection correction drive unit and a return-to-center sensor mounted on the rear end of the base. A rotation fulcrum is provided between the front end of the base and the front end of the deflection correction turret in the middle, and the rotation fulcrum provides a fulcrum for the rotation of the deflection correction turret; the deflection correction drive unit is used to drive the deflection correction turret to rotate around the rotation fulcrum, so that the roller moves along an arc trajectory during deflection correction.

[0007] The main controller is installed on one side of the linear slide and is electrically connected to the linear slide, the material edge detector, the deviation correction drive unit and the centering sensor respectively.

[0008] As a further technical solution of the present invention: the driving end of the correction drive unit is connected to the rear end side of the rotating bracket. The correction drive unit is used to make corresponding actions according to the control signal sent by the main controller, push and pull the correction rotating frame to produce a certain angle difference, so that the material strip can be corrected when it is transported through the roller.

[0009] As a further technical solution of the present invention: the fixed frame is equipped with a sliding sleeve corresponding to each material edge detector on its frame rod, and each sliding sleeve is provided with an inclined plate connected to the material edge detector at its end facing the material edge detector, so that the material edge detector is set at an angle.

[0010] As a further technical solution of the present invention: the sliding sleeve is equipped with a plurality of knob screws which can be supported relative to the frame rod, so that after the knob screws are unlocked, the setting position of the material edge detector on the frame rod of the fixed frame can be adjusted.

[0011] As a further technical solution of the present invention: a balancing component is provided between each side of the base and the same side of the deflection-correcting rotating frame to provide gravity support for the deflection-correcting rotating frame in the return-to-center state and to serve as upper and lower limit functions.

[0012] Compared with the existing technology, the beneficial effects of the present invention are: the present invention proposes a sanitary napkin core material correction device which can adapt to the transportation of material strips of different widths through the cooperation between a linear slide, a material edge detection component, a material strip correction component and a main controller, thereby realizing automatic correction of the sanitary napkin core material, and the movable setting of the correction turntable makes the correction turntable produce outward stretching or inward compression movements, thereby solving the defect that the material strip will wrinkle under high tension environment, and effectively reducing the scrap rate of the finished sanitary napkin product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a device for correcting the deviation of the core material of a sanitary napkin.

[0014] Figure 2 for Figure 1 A partial enlarged view of .

[0015] Figure 3 This is the first perspective of the material strip correction component.

[0016] Figure 4 This is the second perspective of the material strip correction component. DETAILED DESCRIPTION

[0017] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the scope of protection of the present invention.

[0018] See also Figure 1 A sanitary napkin core material correction device includes a linear slide 10, a material edge detection component 20, a material belt correction component 30 and a main controller 40; the material edge detection component 20 is arranged behind the linear slide 10, and is used to detect the material edge of the material belt during transportation; the material belt correction component 30 is arranged on the slide seat of the linear slide 10, so that the slide seat of the linear slide 10 can drive the material belt correction component 30 to move linearly, and correct the material belt through the material belt correction component 30; the main controller 40 is used to control the operation of the linear slide 10, the material edge detection component 20, and the material belt correction component 30.

[0019] See also Figure 2 The material edge detection assembly 20 includes a fixed frame 21 mounted behind the linear slide 10 and two material edge detectors 22 mounted on the frame rods of the fixed frame 21. The two material edge detectors 22 are arranged opposite to each other and have material edge detection ports 221 formed on adjacent sides. The material edges on both sides of the feed belt pass through the material edge detection ports 221 of the two material edge detectors 22. The material edges are detected by the material edge detectors 22, and a displacement amount and displacement direction signal is issued when the material belt is displaced.

[0020] See also Figure 3 、 Figure 4 The strip deflection correction component 30 includes a base 31 mounted on the slide of the linear slide 10, a deflection correction frame 32 arranged above the base 31 and capable of rotating relative to the base 31, a roller 33 mounted on the deflection correction frame 32, and a deflection correction drive unit 34 and a return-to-center sensor 35 mounted on the rear end of the base 31. A rotation fulcrum 321 is provided between the front end of the base 31 and the front end of the deflection correction frame 32 in the middle, and the rotation fulcrum 321 provides a fulcrum for the rotation of the deflection correction frame 32; the deflection correction drive unit 34 is used to drive the deflection correction frame 32 to rotate around the rotation fulcrum 321, so that the roller 33 moves along an arc trajectory during deflection correction; the return-to-center sensor 35 is used to detect the state (including position and movement direction) of the deflection correction frame 32 and send position and movement direction signals;

[0021] The main controller 40 is installed on one side of the linear slide 10, and is electrically connected to the linear slide 10, the material edge detector 22, the correction drive unit 34 and the return to center sensor 35, respectively, for calculating the signal feedback from the material edge detector 22 and controlling the linear slide 10 and the correction drive unit 34 to perform corresponding actions, and calculating the signal feedback from the return to center sensor 35 and controlling the linear slide 10 and the correction drive unit 34 to perform corresponding actions.

[0022] Furthermore, in this embodiment, the rotating fulcrum 321 includes a universal ball joint bearing arranged on the base 31 and a connecting bracket arranged on the correction frame 32. The connecting bracket is formed with a connecting rod that penetrates into the bearing hole of the universal ball joint bearing, so that the rotating fulcrum 321 can provide a fulcrum for the rotation of the correction frame 32.

[0023] Furthermore, in this embodiment, the driving end of the correction drive unit 34 is connected to the rear end side of the rotating bracket. The correction drive unit 34 is used to perform corresponding actions according to the control signal sent by the main controller 40, pushing and pulling the correction rotating frame 32 to produce a certain angle difference, so that the material strip plays a correction role when it is transported through the roller 33.

[0024] Furthermore, the deviation-correcting drive unit 34 preferably adopts an electric telescopic servo cylinder or an electric screw pusher.

[0025] Furthermore, in this embodiment, the fixed frame 21 is provided with a sliding sleeve 23 on its frame rod corresponding to each material edge detector 22, and each sliding sleeve 23 is provided with an inclined plate 231 connected to the material edge detector 22 at its end facing the material edge detector 22, so that the material edge detector 22 is set at an angle to facilitate the material edges on both sides of the material strip to pass through the material edge detection ports 221 of the two material edge detectors 22; the sliding sleeve 23 is installed with a plurality of knob screws 232 that can be supported relative to the frame rod, so that after the knob screws 232 are unlocked, the setting position of the material edge detector 22 on the frame rod of the fixed frame 21 can be adjusted to adapt to material strips of different widths.

[0026] Furthermore, in this embodiment, a balancing assembly 301 is provided between each side of the base 31 and the same side of the deflection-correcting rotating frame 32 to provide gravity support for the deflection-correcting rotating frame 32 in the return-to-center state and to serve as upper and lower limiters.

[0027] As can be understood, the method for using the sanitary napkin core material correction device of the present invention includes the following steps: first, adjusting the setting position of the strip correction assembly 30 on the linear slide 10 and the setting position of the two material edge detectors 22 on the frame rod of the fixed frame 21 to accommodate strips of different widths; second, during the transportation of the strip, the strip passes through the roller 33 on the strip correction assembly 30 and the material edges on both sides pass through the material edge detection ports 221 of the two material edge detectors 22. Then, when the strip moves, the material edge detector 22 sends a signal of the displacement amount and displacement direction. The main controller 40 calculates the signal fed back by the material edge detector 22 and controls the correction drive unit 34 to perform corresponding actions. The correction drive unit 34 pushes and pulls the correction rotating frame 32 around the rotation fulcrum 321 to generate a certain angle difference, causing the roller 33 to move along an arc trajectory, so that the strip plays a correction role when it is transported by the roller 33. In this way, automatic correction of the sanitary napkin core material is achieved.

[0028] To sum up, the utility model is a sanitary napkin core material correction device that can adapt to the transportation of material strips of different widths through the cooperation between the linear slide 10, the material edge detection component 20, the material strip correction component 30 and the main controller 40, and realize the automatic correction of the sanitary napkin core material. The movable setting of the correction rotating frame 32 makes the correction rotating frame 32 produce outward stretching or inward compression action, thereby solving the defect that the material strip will wrinkle under high tension environment, and effectively reducing the scrap rate of the finished sanitary napkin product.

[0029] As long as it does not violate the creative idea of the present invention, any combination of various different embodiments of the present invention should be regarded as the content disclosed by the present invention; within the technical concept of the present invention, any simple modification of the technical solution and any combination of different embodiments that do not violate the creative idea of the present invention should be within the protection scope of the present invention.

Claims

1. A device for correcting the deviation of a sanitary napkin core material, characterized by: The invention comprises a linear slide (10), a material edge detection assembly (20), a material strip deviation correction assembly (30) and a main controller (40); the material edge detection assembly (20) comprises a fixed frame (21) mounted on the rear of the linear slide (10) and two material edge detectors (22) mounted on the frame rod of the fixed frame (21); the two material edge detectors (22) are arranged opposite to each other and a material edge detection port (221) is formed on the adjacent side; The strip deflection correction component (30) comprises a base (31) mounted on a slide seat of a linear slide (10), a deflection correction rotating frame (32) arranged above the base (31) and capable of rotating relative to the base (31), a roller (33) mounted on the deflection correction rotating frame (32), and a deflection correction driving unit (34) and a return-to-center sensor (35) mounted on the rear end of the base (31); a rotation fulcrum (321) is provided between the front end of the base (31) and the front end of the deflection correction rotating frame (32) in the middle, and the rotation fulcrum (321) provides a fulcrum for the rotation of the deflection correction rotating frame (32); the deflection correction driving unit (34) is used to drive the deflection correction rotating frame (32) to rotate around the rotation fulcrum (321), so that the roller (33) moves along an arc trajectory during deflection correction; The main controller (40) is installed on one side of the linear slide (10) and is electrically connected to the linear slide (10), the material edge detector (22), the deviation correction drive unit (34) and the centering sensor (35) respectively.

2. The sanitary napkin core material deviation correcting device according to claim 1, characterized in that: The driving end of the deflection correction drive unit (34) is connected to one side of the rear end of the rotating bracket. The deflection correction drive unit (34) is used to make corresponding actions according to the control signal sent by the main controller (40), push and pull the deflection correction rotating frame (32) to produce a certain angle difference, so that the material belt plays a deflection correction role when it is transported by the roller (33).

3. The sanitary napkin core material deviation correcting device according to claim 1, characterized in that: The fixed frame (21) is provided with a sliding member (23) on its frame rod corresponding to each material edge detector (22); each sliding member (23) is provided with an inclined plate (231) connected to the material edge detector (22) at one end thereof facing the material edge detector (22), so that the material edge detector (22) is arranged in an inclined manner.

4. The sanitary napkin core material deviation correcting device according to claim 3, characterized in that: The sliding sleeve (23) is provided with a plurality of knob screws (232) which can be supported relative to the frame rod, so that the setting position of the material edge detector (22) on the frame rod of the fixed frame (21) can be adjusted after the knob screws (232) are unlocked.

5. The sanitary napkin core material deviation correcting device according to claim 1, characterized in that: A balancing assembly (301) is provided between each side of the base (31) and the same side of the deflection-correcting rotating frame (32) to provide gravity support for the deflection-correcting rotating frame (32) in a return-to-center state and to serve as an upper and lower limit.

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