A tension adjusting and spraying distance linkage spraying device for sanitary napkin belt material

Abstract

The utility model discloses a kind of tensioning adjustment and spraying distance linkage spraying device for sanitary towel belt material, including rack and spraying mechanism, the both ends of rack are equipped with transmission roller, the middle part of rack is equipped with the mounting seat driven by spring along vertical direction reset, mounting seat is symmetrically equipped with tensioning roller, rack still includes the mounting bracket driven by motor along vertical direction, spraying mechanism is fixed on mounting bracket, sensor for detecting between mounting seat is installed on mounting bracket, sensor is electrically connected with motor, when sanitary towel belt material tension changes, tensioning roller rises or falls with mounting seat whole to compensate tension change, while sensor detects mounting seat position change and passes signal to motor, drives mounting bracket to drive spraying mechanism synchronous motion, guarantee the spraying distance constant between spraying nozzle and belt material, realize the linkage control of belt material tensioning state self-adapting adjustment and spraying distance, effectively solve the problem of inaccuracy of spraying caused by belt material tensioning fluctuation.

Description

Technical Field

[0001] This utility model relates to a device for a sanitary napkin production line, and in particular to a spraying device that links the tension adjustment and spraying distance of the sanitary napkin material. Background Technology

[0002] To meet consumers' high demands for hygiene and comfort, the industry generally requires precise spraying during the production of sanitary napkins. The spraying materials include antibacterial agents and superabsorbent polymers (SAP). The precision of this spraying is key to ensuring product performance.

[0003] In existing sanitary napkin spraying processes, most use a continuous conveyor mechanism to drive the substrate (a long strip of material that will be cut into individual sanitary napkins) at high speed, and then use a fixed spraying device to complete the spraying operation. However, sanitary napkin substrate is thin, soft, and sensitive to elongation. In actual high-speed production scenarios, the tension of the substrate is very easy to fluctuate, which causes the relative position of the spraying device and the substrate to shift, ultimately leading to inaccurate material spraying. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a spraying device that links tension adjustment and spraying distance for sanitary napkin tape.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A tension adjustment and spraying distance linkage spraying device for sanitary napkin feed includes a frame and a spraying mechanism. Drive rollers are installed at both the front and rear ends of the frame. A mounting base driven and reset vertically by a spring is installed in the middle of the frame. Tension rollers are symmetrically installed on the mounting base along the feed transmission direction. The frame also includes a mounting frame driven vertically by a motor. The spraying mechanism is fixed on the mounting frame. A sensor for detecting the distance between the mechanism and the mounting base is installed on the mounting frame, and the sensor is electrically connected to the motor.

[0006] The frame is mounted on a first guide rail in a vertical direction, and the mounting base is provided with a first sliding groove corresponding to the first guide rail. The mounting base is slidably mounted on the first guide rail through the first sliding groove.

[0007] The frame is equipped with a second guide rail in the vertical direction, and the mounting bracket is provided with a second sliding groove corresponding to the second guide rail. The mounting bracket is slidably mounted on the second guide rail through the second sliding groove.

[0008] The motor is a servo motor. The output end of the servo motor is connected to the mounting bracket via a ball screw assembly. The ball screw assembly includes a screw fixedly connected to the output end of the servo motor and a nut seat fixedly connected to the mounting bracket and adapted to the screw thread.

[0009] The spring is a compression spring, and there are two sets of compression springs symmetrically distributed between the bottom of the mounting base and the frame. The two ends of the compression springs are detachably and fixedly connected to the mounting base and the frame, respectively.

[0010] The sensor is a laser displacement sensor, with the detection end of the laser displacement sensor facing vertically toward the mounting base, and a reflector is provided on the mounting base corresponding to the detection end of the laser displacement sensor.

[0011] The beneficial effects of this utility model are as follows: A transmission roller is installed at both the front and rear ends of the frame. A mounting seat driven and reset vertically by a spring is installed in the middle of the frame. Tension rollers are symmetrically installed on the mounting seat along the transmission direction of the material. The frame also includes a mounting frame driven vertically by a motor. The spraying mechanism is fixed on the mounting frame, and a sensor for detecting the distance between the spray nozzle and the mounting seat is installed on the mounting frame. The sensor is electrically connected to the motor. When the tension of the sanitary napkin material changes, the tension roller rises or falls with the mounting seat to compensate for the tension change. Simultaneously, the sensor detects the change in the position of the mounting seat and transmits a signal to the motor, driving the mounting frame to move the spraying mechanism synchronously. This ensures a constant spraying distance between the nozzle and the material, achieving adaptive adjustment of the material tension and linkage control of the spraying distance, effectively solving the problem of inaccurate spraying caused by material tension fluctuations. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a structural diagram of the present invention. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0015] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0016] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0017] Reference Figure 1A tension adjustment and spraying distance linkage spraying device for sanitary napkin feed includes a frame 1 and a spraying mechanism 2. Drive rollers 3 are installed at both the front and rear ends of the frame 1. A mounting seat 4, driven and reset by a spring along the vertical direction, is installed in the middle of the frame 1. Tension rollers 5 are symmetrically installed on the mounting seat 4 along the feed transmission direction. The frame 1 also includes a mounting frame 6 driven vertically by a motor. The spraying mechanism 2 is fixed on the mounting frame 6. A sensor 7 for detecting the distance between the sensor 7 and the mounting seat 4 is installed on the mounting frame 6. The sensor 7 is electrically connected to the motor.

[0018] When the tension of the sanitary napkin fabric changes, the tension roller rises or falls with the mounting base to compensate for the tension change. At the same time, the sensor detects the change in the position of the mounting base and transmits a signal to the motor, which drives the mounting frame to move synchronously with the spraying mechanism. This ensures that the spraying distance between the nozzle and the fabric is constant, realizing the adaptive adjustment of the fabric tension and the linkage control of the spraying distance. This effectively solves the problem of inaccurate spraying caused by fluctuations in fabric tension.

[0019] The motor is a servo motor. The output end of the servo motor is connected to the mounting bracket 6 via a ball screw pair. The ball screw pair includes a screw fixedly connected to the output end of the servo motor and a nut seat fixedly connected to the mounting bracket 6 and adapted to the screw thread.

[0020] The frame 1 is vertically mounted with a first guide rail 8, and the mounting base 4 is provided with a first sliding groove corresponding to the first guide rail 8. The mounting base 4 is slidably mounted on the first guide rail 8 through the first sliding groove. The frame 1 is vertically mounted with a second guide rail 9, and the mounting frame 6 is provided with a second sliding groove corresponding to the second guide rail 9. The mounting frame 6 is slidably mounted on the second guide rail 9 through the second sliding groove. The cooperation structure between the sliding groove and the guide rail guides and limits the vertical movement of the mounting base 4 and the mounting frame 6 respectively, avoiding deviation or jamming during movement. At the same time, a servo motor and a ball screw pair are used to drive the movement of the mounting frame 6, which has the advantages of high adjustment accuracy and fast response speed, further ensuring the synchronization and reliability of tension adjustment and spraying distance linkage control.

[0021] When installing the tension roller 5, after inserting both ends into the mounting holes on the mounting frame 6, it can be directly fitted into the first guide rail 8 through the first sliding groove.

[0022] The spring is a compression spring, and there are two sets of compression springs, symmetrically distributed between the bottom of the mounting base 4 and the frame 1. The two ends of the compression spring are detachably and fixedly connected to the mounting base 4 and the frame 1 respectively (or a through hole is provided at the corresponding position, and the compression spring is placed in the through hole, with the two ends of the compression spring abutting against the mounting base 4 and the frame 1 respectively), which facilitates the maintenance and replacement of the spring in the later stage and reduces the equipment maintenance cost.

[0023] The sensor 7 is a laser displacement sensor. The detection end of the laser displacement sensor is vertically oriented towards the mounting base 4, and a reflector is provided on the mounting base 4 corresponding to the detection end of the laser displacement sensor. The laser displacement sensor has the advantages of high detection accuracy, fast response speed, and strong anti-interference ability. It can accurately capture the minute displacement changes of the mounting base and provide reliable signal support for the synchronous adjustment of the spraying mechanism. In addition, the vertical orientation of the detection end towards the mounting base and the arrangement with the reflector can enhance the reception intensity of the laser signal, further improve the detection stability, avoid detection errors caused by signal attenuation, and ensure accurate synchronization of the linkage adjustment.

[0024] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A spraying device for tension adjustment and spraying distance linkage of sanitary napkin material, comprising a frame (1) and a spraying mechanism (2), characterized in that... The front and rear ends of the frame (1) are equipped with transmission rollers (3). The middle part of the frame (1) is equipped with a mounting seat (4) driven and reset by a spring in the vertical direction. The mounting seat (4) is symmetrically equipped with tension rollers (5) along the transmission direction of the conveyor belt. The frame (1) also includes a mounting frame (6) driven by a motor in the vertical direction. The spraying mechanism (2) is fixed on the mounting frame (6). The mounting frame (6) is equipped with a sensor (7) for detecting the distance between the sensor and the mounting seat (4). The sensor (7) is electrically connected to the motor.

2. The tension adjustment and spraying distance linkage spraying device for sanitary napkin material as described in claim 1, characterized in that... The frame (1) is equipped with a first guide rail (8) in the vertical direction. The mounting base (4) is provided with a first sliding groove corresponding to the first guide rail (8). The mounting base (4) is slidably mounted on the first guide rail (8) through the first sliding groove.

3. The tension adjustment and spraying distance linkage spraying device for sanitary napkin material as described in claim 1, characterized in that... The frame (1) is equipped with a second guide rail (9) in the vertical direction. The mounting bracket (6) is provided with a second sliding groove corresponding to the second guide rail (9). The mounting bracket (6) is slidably mounted on the second guide rail (9) through the second sliding groove.

4. The tension adjustment and spraying distance linkage spraying device for sanitary napkin material according to claim 1 or 3, characterized in that... The motor is a servo motor. The output end of the servo motor is connected to the mounting bracket (6) via a ball screw pair. The ball screw pair includes a screw fixedly connected to the output end of the servo motor and a nut seat fixedly connected to the mounting bracket (6) and adapted to the screw thread.

5. The tension adjustment and spraying distance linkage spraying device for sanitary napkin material as described in claim 1, characterized in that... The spring is a compression spring. There are two sets of compression springs, which are symmetrically distributed between the bottom of the mounting base (4) and the frame (1). The two ends of the compression springs are detachably and fixedly connected to the mounting base (4) and the frame (1), respectively.

6. The tension adjustment and spraying distance linkage spraying device for sanitary napkin material according to claim 1, characterized in that... The sensor (7) is a laser displacement sensor. The detection end of the laser displacement sensor is set vertically toward the mounting base (4), and a reflector is provided on the mounting base (4) corresponding to the detection end of the laser displacement sensor.

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