Automatic unwinding machine for wet wipe production

Abstract

This utility model relates to the field of wet wipe production technology, and provides an automatic unwinding machine for wet wipe production, solving the problem of excessive time spent on changing rolls in existing wet wipe production equipment. This utility model includes: a frame; a rotating frame rotatably mounted on the frame, the rotating frame having at least two unwinding stations for mounting material rolls; a drive device connected to the rotating frame for driving its rotation to switch working stations; and a splicing component disposed on the frame and located downstream of the rotating frame for connecting the end of a depleted material roll to the beginning of a new material roll. Through the rotating frame with at least two unwinding stations, production unwinding can be carried out at one station while preparation for loading a new material roll is performed at another station, greatly reducing the time spent on changing rolls in traditional wet wipe unwinding equipment.

Description

Technical Field

[0001] This utility model relates to the field of wet wipe production technology, specifically to an automatic unwinding machine for wet wipe production. Background Technology

[0002] Chinese Patent Publication No. CN216105015U discloses an easy-to-disassemble unwinding device for wet wipe production, including an unwinding device body, a first roller mounting frame, a drive motor, a motor placement plate, a second roller mounting frame, an auxiliary unwinding roller, a fixing mechanism, a detachable roller and a wet wipe roll, wherein the fixing mechanism includes an unwinding device base, a fixing block, a right-angle limiting block and a slotted mounting plate.

[0003] This utility model facilitates the installation of the unwinding device on the ground or platform by setting a slotted mounting roller block, and the detachable roller makes it easy to replace the wet wipe roll after it is unwound. In the wet wipe production process, after the material roll is used up, a new material roll needs to be rewound, and changing the roll takes a lot of time. Utility Model Content

[0004] Therefore, in order to address the above problems, this utility model provides an automatic unwinding machine for wet wipe production, which solves the problem that changing rolls in existing wet wipe production equipment takes a lot of time.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] An automatic unwinding machine for wet wipe production includes:

[0007] frame;

[0008] A rotary frame is rotatably mounted on the machine frame, and the rotary frame is provided with at least two unwinding stations for mounting material rolls;

[0009] A drive unit, connected to the rotary frame, is used to drive its rotation to switch working positions;

[0010] The splicing component, mounted on the frame and located at the downstream station of the rotary frame, is used to connect the tail of the exhausted roll to the head of a new roll.

[0011] A tension control component, located downstream of the splicing component, is used to control the unwinding tension of the substrate;

[0012] Several guide rollers are arranged on the substrate path between the unwinding station and the final output end to guide and support the substrate.

[0013] Furthermore, the splicing component includes a mounting frame, a glue gun slidably mounted on the mounting frame, and a pressing roller, with pressing cylinders on both sides of the pressing roller.

[0014] Furthermore, it also includes a web guiding component, which is mounted on the frame and includes a web guiding roller and an infrared sensor for detecting one edge of the substrate.

[0015] Furthermore, the correction component is located downstream of the tension control component.

[0016] Furthermore, the tension control component includes a floating roller and tension sensors disposed on both sides of the floating roller.

[0017] Furthermore, the drive device includes a servo motor and a reducer driven by the servo motor, the output end of which is connected to the rotary frame.

[0018] Furthermore, each of the unwinding stations is equipped with an air shaft for fixing the coil.

[0019] Furthermore, it also includes a transfer trolley for transporting new material rolls, wherein a locking post is provided on one side of the top of the transfer trolley, and an upwardly inclined slope is provided on one side of the locking post.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model, through a rotating frame with at least two unwinding stations, allows for simultaneous unwinding at one station and preparation of new rolls at another. By using a drive device for rotational switching, roll changing is achieved without stopping the machine, greatly improving production efficiency and significantly reducing the time spent on roll changing in traditional wet wipe unwinding equipment.

[0022] 2. This utility model places the tension control component downstream of the splicing component, ensuring that the tension control component adjusts the tension of the connected substrate only after the splicing action is completed, avoiding direct impact on the tension system during the splicing process and ensuring stability during operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the rotating frame structure according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the splicing component structure according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the transfer trolley structure according to an embodiment of the present utility model.

[0027] Explanation of icon numbers:

[0028] Rack 1;

[0029] Rotary frame 2; Unwinding station 21; Heightening column 211;

[0030] Drive unit 3; servo motor 31; reducer 32;

[0031] Component 4; Mounting bracket 41; Glue gun 42; Pressing roller 43; Pressing cylinder 44;

[0032] Tension control component 5; floating roller 51; tension sensor 52;

[0033] Guide roller 6;

[0034] Correction component 7; Correction guide roller 71; Infrared sensor 72;

[0035] Air shaft 8; Rubber roller 81;

[0036] 9. Transfer trolley; 91. Column; 92. Inclined surface; 93. Arc-shaped section. Detailed Implementation

[0037] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0038] Example:

[0039] like Figures 1 to 4 As shown, an automatic unwinding machine for wet wipe production includes: a frame 1; a rotary frame 2 rotatably mounted on the frame 1, the rotary frame 2 having two unwinding stations 21 for mounting material rolls; a drive device 3 connected to the rotary frame 2 for driving its rotation to switch working stations; a splicing component 4 disposed on the frame 1 and located downstream of the rotary frame 2 for connecting the tail of the exhausted material roll to the head of a new material roll; a tension control component 5 disposed downstream of the splicing component 4 for controlling the unwinding tension of the substrate; and a plurality of guide rollers 6 arranged on the substrate path between the unwinding station 21 and the final output end for guiding and supporting the substrate.

[0040] This application does not specify the number of guide rollers 6; adjustments can be made based on the actual production line.

[0041] The rotary frame 2 with at least two unwinding stations 21 allows for simultaneous unwinding at one station and preparation of new rolls at the other. Rotation switching via the drive device 3 enables roll changing without stopping the machine, significantly improving production efficiency and greatly reducing the time spent on roll changing in traditional wet wipe unwinding equipment. Positioning the tension control component 5 downstream of the splicing component 4 ensures that the tension of the connected substrate is adjusted only after the splicing process is complete, avoiding direct impact on the tension system during splicing and guaranteeing stability during operation.

[0042] Specifically, the two unwinding stations 21 on the rotary frame 2 are respectively located at the top and bottom of the rotary frame 2, and the unwinding station 21 is in the shape of a groove.

[0043] The splicing component 4 includes a mounting frame 41, a glue gun 42 slidably mounted on the mounting frame 41, and a pressure roller 43. The pressure roller 43 has pressure cylinders 44 on both sides. The combination of the glue gun 42 and the pressure roller 43 enables rapid and automatic bonding of the beginning and end of new and old material rolls, resulting in high efficiency and good consistency. The glue gun 42 can precisely control the amount and position of glue application, while the pressure cylinders on both sides of the pressure roller 43 provide uniform and adjustable pressure, ensuring a firm, flat bond without bubbles or wrinkles. This effectively avoids the risk of breakage at the splice point during subsequent processing. Because the thickness of the bonded area differs from other areas, it can be automatically rejected in subsequent defect identification processes without affecting the final product quality. The glue gun 42 slides via a sliding cylinder. The glue gun 42, sliding cylinder, and pressure cylinder 44 are all commercially available and will not be described in detail here.

[0044] When the old roll is exhausted, after spraying glue at the end of the exhausted roll, the head of the new roll is manually pulled to the end of the exhausted roll, and then pressed by the pressing roller 43.

[0045] It also includes a correction component 7, which is mounted on the frame 1. The correction component 7 includes a correction guide roller 71 and an infrared sensor 72 for detecting one edge of the substrate. Substrate misalignment can lead to a series of quality problems such as uneven folding of wet wipes, incorrect cutting dimensions, and misaligned printing. The correction component 7 is crucial for ensuring production quality. By monitoring the edge position of the substrate in real time through the infrared sensor 72, the machine can automatically stop when a serious lateral deviation occurs during substrate transport, thus avoiding losses.

[0046] The correction component 7 is located downstream of the tension control component 5; this means that tension control is performed first, followed by correction. This order is crucial because stable tension is a prerequisite for effective correction. If the tension fluctuates significantly, the correction system will struggle to operate accurately. This arrangement makes the entire control system logic clearer and improves control performance.

[0047] The tension control component 5 includes a floating roller 51 and tension sensors 52 disposed on both sides of the floating roller 51. By adopting the structure of the floating roller 51 combined with the tension sensors 52 on both sides, the actual tension value of the substrate can be detected in real time and accurately, thereby precisely adjusting the unwinding torque.

[0048] The drive device 3 includes a servo motor 31 and a reducer 32 driven by the servo motor 31, and the output end of the reducer 32 is connected to the rotary frame 2.

[0049] Each of the unwinding stations 21 is equipped with an air shaft 8 for fixing the material roll. The two ends of the air shaft 8 are equipped with rubber rollers 81. An external driving component drives the rotation of the air shaft 8 by friction with the rubber rollers.

[0050] It also includes a transfer trolley 9 for transporting new coils. The transfer trolley 9 has a locking post 91 on one side of its top. The locking post 91 has an upwardly inclined slope 92 on one side. The slope 92 extends upward in an arc shape on the side away from the locking post 91 to form an arc segment 93. The arc of the arc segment 93 is consistent with the rotation arc of the unwinding station 21. The unwinding station 21 has a heightening post 211 on one side to prevent the air shaft 8 from disengaging from the unwinding station 21. The use of the transfer trolley 9 realizes the mechanized handling of coils, making the operation safer and less labor-intensive. The inclined surface can guide the coil to easily change coils with the rotary frame.

[0051] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. An automatic unwinding machine for wet wipe production, characterized in that, include: frame; A rotary frame is rotatably mounted on the machine frame, and the rotary frame is provided with at least two unwinding stations for mounting material rolls; A drive unit, connected to the rotary frame, is used to drive its rotation to switch working positions; The splicing component, mounted on the frame and located at the downstream station of the rotary frame, is used to connect the tail of the exhausted roll to the head of a new roll. A tension control component, located downstream of the splicing component, is used to control the unwinding tension of the substrate; Several guide rollers are arranged on the substrate path between the unwinding station and the final output end to guide and support the substrate.

2. The automatic unwinding machine for wet wipe production according to claim 1, characterized in that: The splicing component includes a mounting frame, a glue gun slidably mounted on the mounting frame, and a pressing roller, with pressing cylinders on both sides of the pressing roller.

3. The automatic unwinding machine for wet wipe production according to claim 1, characterized in that: It also includes a web guiding component, which is mounted on the frame and includes a web guiding roller and an infrared sensor for detecting one edge of the substrate.

4. The automatic unwinding machine for wet wipe production according to claim 3, characterized in that: The correction component is located downstream of the tension control component.

5. An automatic unwinding machine for wet wipe production according to claim 1, characterized in that: The tension control component includes a floating roller and tension sensors located on both sides of the floating roller.

6. An automatic unwinding machine for wet wipe production according to claim 1, characterized in that: The drive device includes a servo motor and a reducer driven by the servo motor, and the output end of the reducer is connected to the rotary frame.

7. An automatic unwinding machine for wet wipe production according to claim 1, characterized in that: Each of the unwinding stations is equipped with an air shaft for fixing the coil.

8. An automatic unwinding machine for wet wipe production according to claim 1, characterized in that: It also includes a transfer trolley for transporting new material rolls, wherein a locking post is provided on one side of the top of the transfer trolley, and an upwardly inclined slope is provided on one side of the locking post.

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