Sanitary napkin raw material unwinding and receiving device

Abstract

The utility model discloses a sanitary napkin raw material unwinding and receiving device which comprises an unwinding assembly, a first winding assembly, a second winding assembly, a feeding assembly, a discharging assembly, a feeding assembly and a discharging assembly. The unwinding assembly comprises a first unwinding assembly and a second unwinding assembly, and the first unwinding assembly is used for unwinding a first belt material and the second unwinding assembly is used for unwinding a second belt material; the roll changing mechanism comprises a first roll changing mechanism for processing a first strip material and a second roll changing mechanism for processing a second strip material; the material guide roller assembly is located on an unwinding path of the first strip material and the second strip material; wherein the first roll changing mechanism and the second roll changing mechanism comprise a material cutting mechanism, the material cutting mechanism comprises a material cutting mechanism, a stabilizing mechanism and a workbench used for being matched with the material cutting mechanism and the stabilizing mechanism, and when the material cutting mechanism cuts off a strip material, the stabilizing mechanism compresses the strip material at the same time; and the material receiving mechanism is used for connecting the first strip material and the second strip material. According to the utility model, the problem that the strip material is likely to splash due to tension release during material breaking in the coil changing, material receiving and material breaking links is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of unwinding and splicing devices, in particular to a unwinding and splicing device for sanitary napkin raw materials. Background Art

[0002] Sanitary napkin production equipment is typically high-speed machinery, and its production efficiency and stability are crucial to the operation of the entire production line. During the sanitary napkin production process, a continuous supply of raw materials and precise control are key to ensuring efficient operation. However, in existing sanitary napkin production equipment, especially during roll changes, splicing, and material cuts, the release of tension during material cuts can cause the strip to splash, impacting production efficiency and potentially disrupting normal equipment operation. Summary of the Invention

[0003] In order to solve the problem that the strip material may splash due to tension release when the material is cut off during the roll-changing, splicing and cutting process, the utility model provides a sanitary napkin raw material unrolling and splicing device.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] The embodiment of the utility model provides a sanitary napkin raw material unwinding and splicing device, comprising:

[0006] An unwinding assembly, comprising a first unwinding assembly for unwinding the first strip material and a second unwinding assembly for unwinding the second strip material;

[0007] The roll-changing mechanism includes a first roll-changing mechanism for processing the first strip material and a second roll-changing mechanism for processing the second strip material;

[0008] A guide roller assembly is located on the unwinding path of the first and second strips of material, and is used to guide the first and second strips of material to unwind along a preset path;

[0009] Wherein, the first roll changing mechanism and the second roll changing mechanism include:

[0010] A cutting mechanism, comprising a cutting mechanism, a stabilizing mechanism, and a workbench for cooperating with the cutting mechanism and the stabilizing mechanism. When the cutting mechanism cuts the strip, the stabilizing mechanism simultaneously presses the strip;

[0011] The material connecting mechanism is used to connect the first belt material and the second belt material.

[0012] According to some embodiments of the present invention, a coil unwinding drive device is further included, wherein the coil unwinding drive device includes a unwinding structure and a first driving member for driving the unwinding structure to move closer to or away from the unwinding assembly.

[0013] According to some embodiments of the present invention, the unloading structure includes a conveyor belt and a fixing structure for installing the conveyor belt.

[0014] According to some embodiments of the present invention, the unloading structure further includes a second driving member for driving the conveyor belt.

[0015] According to some embodiments of the present invention, a connecting piece for connecting to the material receiving mechanism is provided at the bottom of the workbench.

[0016] According to some embodiments of the present invention, the material splicing mechanism includes a splicing pressing block and a driving portion for driving the splicing pressing block, and the driving portion is fixed on the connecting member.

[0017] According to some embodiments of the present invention, the roll changing mechanism further includes an installation box for fixing the cutting mechanism and the stabilizing mechanism, and the installation box is provided with an observation window.

[0018] According to some embodiments of the present invention, the material guide roller assembly includes a first material guide roller assembly, a second material guide roller assembly and a third material guide roller assembly arranged on both sides of the roll changing mechanism, and the third material guide roller assembly is arranged on the side of the first material guide roller assembly and the second material guide roller assembly close to the unwinding assembly and lower than the workbench.

[0019] According to some embodiments of the present invention, the cutting mechanism includes a cutting knife and a cutting knife driving member for driving the cutting knife.

[0020] According to some embodiments of the present invention, the stabilizing mechanism includes a pressing block for pressing the strip and a pressing block driving member for driving the pressing block.

[0021] The present invention has at least the following beneficial effects: during the roll changing process, the cutting mechanism, the stabilizing mechanism and the connecting mechanism work together, the cutting mechanism cuts off the end of the first strip of material, and the stabilizing mechanism simultaneously presses the first strip of material, and the connecting mechanism connects the first strip of material with the second strip of material, preventing the first strip of material from splashing or shifting due to the cutting action, thereby ensuring the continuous supply of material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an embodiment of the utility model;

[0023] Figure 2 for Figure 1 A magnified image of the marker;

[0024] Figure 3 for Figure 1 B is an enlarged view of the marker. DETAILED DESCRIPTION

[0025] The following description of the present invention, with reference to the accompanying drawings, is provided to facilitate a more comprehensive understanding of the various embodiments of the present invention as defined in the claims and their equivalents. The description includes various specific details to assist understanding, but these details should be construed as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0026] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0027] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element can be directly connected to the other element or an intervening element (e.g., a third element) can be present between the element and the other element.

[0028] The embodiment of the utility model provides a sanitary napkin raw material unwinding and splicing device, such as Figure 1-3 As shown, including:

[0029] The unwinding assembly 100 includes a first unwinding assembly 130 for unwinding the first strip 110 and a second unwinding assembly 140 for unwinding the second strip 120;

[0030] The roll-changing mechanism 200 includes a first roll-changing mechanism 210 for processing the first strip 110 and a second roll-changing mechanism 220 for processing the second strip 120;

[0031] The guide roller assembly 300 is located on the unwinding path of the first strip 110 and the second strip 120 and is used to guide the first strip 110 and the second strip 120 to unwind along a preset path;

[0032] The first roll changing mechanism 210 and the second roll changing mechanism 220 include:

[0033] The cutting mechanism 500 includes a cutting mechanism 510, a stabilizing mechanism 520, and a workbench 530 for cooperating with the cutting mechanism 510 and the stabilizing mechanism 520. When the cutting mechanism 510 cuts the strip, the stabilizing mechanism 520 simultaneously presses the strip;

[0034] The material connecting mechanism 600 is used to connect the first material strip 110 and the second material strip 120.

[0035] The unwinding assembly 100 includes two unwinding assemblies 100: one for unwinding the first web 110 and the other for unwinding the second web 120. The unwinding assembly 100 unwinds the wound material (such as sanitary napkin raw material) for subsequent processing. The roll-changing mechanism 200 includes two roll-changing mechanisms 200: one for handling the first web 110 and the other for handling the second web 120. The roll-changing mechanisms 200 switch to the next roll when one roll of material is nearing completion, ensuring continuous production. The guide roller assembly 300, located along the unwinding path of the first and second webs 110, 120, controls the material tension and ensures that the materials are positioned correctly. The cutting mechanism 500 includes a cutting mechanism 510, a stabilizing mechanism 520, and a workbench 530. The cutting mechanism 510 cuts the web, while the stabilizing mechanism 520 compresses the web during cutting to prevent it from splashing due to the release of tension. The material connection mechanism 600 is used to connect the first web 110 and the second web 120, ensuring a continuous supply of materials and avoiding production interruptions. This device design can prevent material splashing when the web breaks, improve the automation level of the sanitary napkin production line, reduce manual intervention, and improve production efficiency and product quality.

[0036] Specifically, the process of unwinding and splicing can be divided into the following steps:

[0037] 1. Material tension control: The guide roller assembly 300 controls the tension of the material on the unwinding path to ensure that the material maintains appropriate tension during the unwinding process, avoiding material damage or uneven unwinding due to excessive or insufficient tension.

[0038] 2. Preparation for roll change: When the first strip 110 is about to be used up, the second roll is unwound into the material receiving mechanism 600, and then the second roll in the material receiving mechanism 600 is glued to facilitate the subsequent connection between the first strip 110 and the second strip 120.

[0039] 3. Reel Change: During the reel change process, the cutting mechanism 500 begins operation. The cutting mechanism 510 cuts off the end of the first strip 110, while the stabilizing mechanism 520 simultaneously compresses the first strip to prevent it from splashing or shifting due to the cutting action. The splicing mechanism 600 connects the end of the first strip 110 with the beginning of the second strip 120, ensuring a continuous supply of material.

[0040] 4. Circular operation: As the production process continues, when the second strip 120 is about to be used up, the entire process of changing the roll and splicing the material will be repeated again to ensure the continuous operation of the production line.

[0041] In some embodiments, a coil unwinding drive device 400 is further included. The coil unwinding drive device 400 includes a coil unwinding structure 410 and a first driving member 420 for driving the coil unwinding structure 410 to move closer to or away from the unwinding assembly 100.

[0042] When the strip is unwinding, the unwinding structure 410 is close to the outer diameter of the strip and unwinds the outer diameter of the strip. During the use of the strip, as the diameter of the strip decreases, the first driving member 420 drives the unwinding structure 410 to follow the swing angle, and at the same time feeds back information to the unwinding structure 410, increasing the unwinding speed of the unwinding structure 410, so that the speed of unwinding the strip remains uniform, that is, during the unwinding process, the strip changes from a large diameter to a small diameter, and the running speed of the strip can remain stable.

[0043] The unwinding structure 410 may include rollers, pressure rollers or other types of contact components that can be in direct contact with the strip to unwind the strip. The first drive member 420 is a component used to control the movement of the unwinding structure 410. It can be a motor, a cylinder or other type of drive device. The function of the first drive member 420 is to drive the unwinding structure 410 to move closer to or away from the unwinding assembly 100 as needed. In some cases, this may involve automatically adjusting the position of the unwinding structure 410 to accommodate strips of different diameters. The coil unwinding drive device 400 can ensure the stability of the strip during the unwinding process, reduce material waste, and improve production efficiency and product quality.

[0044] Furthermore, the unloading structure 410 includes a conveyor belt 430 and a fixing structure 440 for installing the conveyor belt 430 .

[0045] The conveyor belt 430 is used to unwind the belt material at its outer diameter. The fixed structure 440 is a frame structure used to install and fix the conveyor belt 430, providing support and guidance for the conveyor belt 430. The design of the fixed structure 440 needs to ensure that the conveyor belt 430 remains stable during operation and reduce vibration and deviation.

[0046] Furthermore, the unloading structure 410 further includes a second driving member 450 for driving the conveyor belt 430 .

[0047] The second drive element 450 controls the conveying speed of the conveyor belt 430 and can be a motor or other type of drive device. The unwinding speed of the strip is controlled by the rotational speed of the second drive element 450. The second drive element 450 receives feedback from the production line speed and the strip tension to ensure that the unwinding speed is consistent with the production line speed.

[0048] In some embodiments, a connector 540 for connecting to the material receiving mechanism 600 is provided at the bottom of the workbench 530 .

[0049] Furthermore, the material splicing mechanism 600 includes a splicing pressing block 610 and a driving portion 620 for driving the splicing pressing block 610 , and the driving portion 620 is fixed on the connecting member 540 .

[0050] The tape-joining pressing block 610 is a component in the material-joining mechanism 600 that is used to contact the tape and apply pressure to ensure that the two tapes can be joined smoothly.

[0051] In some embodiments, the roll changing mechanism 200 further includes a mounting box 230 for fixing the cutting mechanism 510 and the stabilizing mechanism 520 , and an observation window 240 is provided on the mounting box 230 .

[0052] The lower opening of the mounting box 230 facilitates the processing of the strip by the cutting mechanism 510 and the stabilizing mechanism 520. The observation window 240 is a transparent window mounted on the mounting box 230, allowing the operator to observe the operating status of the internal mechanisms without opening the mounting box 230. Through the observation window 240, the operator can monitor the operating status of the cutting mechanism 510 and the stabilizing mechanism 520 in real time, and promptly identify and address any problems that may arise.

[0053] In some embodiments, the guide roller assembly 300 includes a first guide roller assembly 310, a second guide roller assembly 320 and a third guide roller assembly 330 arranged on both sides of the roll changing mechanism 200. The third guide roller assembly 330 is arranged on the side of the first guide roller assembly 310 and the second guide roller assembly 320 close to the unwinding assembly 100 and lower than the workbench 530.

[0054] The first guide roller assembly 310 is used to limit lateral movement of the web during unwinding, ensuring that the web follows the predetermined path. The second guide roller assembly 320 corresponds to the first guide roller assembly 310 and similarly limits lateral movement of the web. Together, they ensure stable unwinding of the web. The third guide roller assembly 330 provides additional support and restraint for the web, particularly during web changes, preventing it from straying from the predetermined path. The coordinated action of the three guide roller assemblies 300 allows for more effective control of the web's unwinding path, minimizing web drift and slack during unwinding.

[0055] In some embodiments, the cutting mechanism 510 includes a cutting knife 550 and a cutting knife driving member 560 for driving the cutting knife 550 .

[0056] In some embodiments, the stabilizing mechanism 520 includes a pressing block 570 for pressing the strip and a pressing block driving member 580 for driving the pressing block 570 .

[0057] The terms and words used in the above description and claims are not limited to their literal meanings, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided for illustration only and is not intended to limit the present invention as defined in the appended claims and their equivalents.

Claims

1. A sanitary napkin raw material unwinding and splicing device, characterized in that: include: An unwinding assembly (100) comprises a first unwinding assembly (130) for unwinding a first strip material (110) and a second unwinding assembly (140) for unwinding a second strip material (120); A roll-changing mechanism (200) comprises a first roll-changing mechanism (210) for processing a first strip of material (110) and a second roll-changing mechanism (220) for processing a second strip of material (120); A guide roller assembly (300) for guiding the first strip material (110) and the second strip material (120) to unwind along a preset path; Wherein, the first roll-changing mechanism (210) and the second roll-changing mechanism (220) include a material cutting mechanism (500) and a material connecting mechanism (600); the material cutting mechanism (500) includes a material cutting mechanism (510), a stabilizing mechanism (520) and a workbench (530) for cooperating with the material cutting mechanism (510) and the stabilizing mechanism (520); when the material cutting mechanism (510) cuts the strip material, the stabilizing mechanism (520) simultaneously presses the strip material; the material connecting mechanism (600) is used to connect the first strip material (110) and the second strip material (120).

2. A sanitary napkin raw material unwinding and splicing device according to claim 1, characterized in that: The invention also includes a coil unwinding drive device (400), wherein the coil unwinding drive device (400) includes a unwinding structure (410) and a first driving member (420) for driving the unwinding structure (410) to move closer to or away from the unwinding assembly (100).

3. A sanitary napkin raw material unwinding and splicing device according to claim 2, characterized in that: The unloading structure (410) includes a conveyor belt (430) and a fixing structure (440) for installing the conveyor belt (430).

4. A sanitary napkin raw material unwinding and splicing device according to claim 3, characterized in that: The unloading structure (410) further includes a second driving member (450) for driving the conveyor belt (430).

5. A sanitary napkin raw material unwinding and splicing device according to any one of claims 1 to 4, characterized in that: A connecting piece (540) for connecting to the material receiving mechanism (600) is provided at the bottom of the workbench (530).

6. A sanitary napkin raw material unwinding and splicing device according to claim 5, characterized in that: The material splicing mechanism (600) comprises a splicing pressing block (610) and a driving unit (620) for driving the splicing pressing block (610), and the driving unit (620) is fixed on the connecting member (540).

7. A sanitary napkin raw material unwinding and splicing device according to any one of claims 1 to 4, characterized in that: The roll-changing mechanism (200) further comprises an installation box (230) for fixing the cutting mechanism (510) and the stabilizing mechanism (520), and an observation window (240) is provided on the installation box (230).

8. A sanitary napkin raw material unwinding and splicing device according to any one of claims 1 to 4, characterized in that: The guide roller assembly (300) comprises a first guide roller assembly (310), a second guide roller assembly (320) and a third guide roller assembly (330) arranged on both sides of the roll changing mechanism (200); the third guide roller assembly (330) is arranged on a side of the first guide roller assembly (310) and the second guide roller assembly (320) close to the unwinding assembly (100) and lower than the workbench (530).

9. A sanitary napkin raw material unwinding and splicing device according to any one of claims 1 to 4, characterized in that: The cutting mechanism (510) comprises a cutting knife (550) and a cutting knife driving member (560) for driving the cutting knife (550).

10. A sanitary napkin raw material unwinding and splicing device according to any one of claims 1 to 4, characterized in that: The stabilizing mechanism (520) includes a pressing block (570) for pressing the strip material and a pressing block driving member (580) for driving the pressing block (570).

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