Plastic film spraying device for diaper packaging

Abstract

This utility model relates to a plastic film adhesive spraying device for diaper packaging, including a frame. Two guide rollers A, one above the other, are fixedly connected to the frame for the plastic film to pass over. A slotted photoelectric switch for sensing the edge of the plastic film and an adhesive spraying head are disposed between the two guide rollers A. The frame also has an adjustment mechanism located in front of the lower guide roller A for adjusting the left and right position of the plastic film. The adjustment mechanism includes an adjustment frame and an electric control mechanism for controlling the left and right movement of the adjustment frame. The adjustment frame has an adjustment roller A and an adjustment roller B arranged one in front of the other. This utility model's plastic film adhesive spraying device for diaper packaging is reasonably designed, easy to use, and highly practical. It achieves adaptive correction adjustment of the plastic film position, ensuring that the distance from the adhesive spraying position to the edge of the plastic film remains basically consistent, ensuring accurate adhesive spraying effect and position, and guaranteeing packaging quality. It also has a plastic film tension adjustment function.

Description

Technical Field

[0001] This utility model relates to the field of diaper production equipment, and in particular to a plastic film spraying device for diaper packaging. Background Technology

[0002] When diapers are individually packaged using plastic film, adhesive needs to be sprayed on one side of the plastic film near the edge. Then, the two sides of the plastic film are folded towards the middle and glued to cover the diaper in the middle. Because the position of the plastic film is prone to shifting left and right during the transportation process, the adhesive spraying position on the plastic film is crooked, or even sprayed outside the plastic film, affecting the packaging effect. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a convenient and practical plastic film spraying device for diaper packaging, which realizes adaptive correction adjustment of the plastic film position to ensure the spraying effect and accurate spraying position.

[0004] This utility model is achieved using the following solution: a plastic film spraying device for diaper packaging, comprising a frame, on which two guide rollers A, one above the other, are fixedly connected for the plastic film to pass over. Between the two guide rollers A, a slotted photoelectric switch for sensing the edge of the plastic film and a spraying head for spraying adhesive onto the plastic film are provided. The frame is also provided with an adjustment mechanism located in front of the lower guide roller A for adjusting the left and right position of the plastic film. The adjustment mechanism includes an adjustment frame and an electric control mechanism for controlling the left and right movement of the adjustment frame. The adjustment frame has an adjustment roller A and an adjustment roller B arranged one in front of the other.

[0005] Furthermore, the adjusting frame is inclined with the front lower and the rear higher, and long grooves are opened on the side plates of both sides of the adjusting frame. The adjusting roller B has roller shafts at both ends that extend into the long grooves. The end face of the roller shaft has threaded holes, and locking screws A are provided on both sides of the adjusting frame that are threadedly connected to the threaded holes on the roller shaft.

[0006] Furthermore, racks are fixedly connected to the inner sides of the two side plates of the adjusting frame, and gears that mesh with the racks are sleeved on the roller shafts at both ends of the adjusting roller B.

[0007] Furthermore, the electric control mechanism includes a lead screw arranged in the left-right direction and controlled to rotate by a motor. An adjustment seat is fixedly connected to the lower side of the adjustment frame. The adjustment seat has threaded holes that pass through its left and right end faces. The lead screw passes through the threaded holes of the adjustment seat and engages with its threads.

[0008] Furthermore, the motor is mounted on the frame, and the lead screw is coaxially connected to the main shaft of the motor; a guide shaft parallel to the lead screw is also fixedly connected to the frame, and a guide hole that slides with the guide shaft is provided on the adjusting seat.

[0009] Furthermore, the slotted photoelectric switch is fixedly connected to a connecting seat A, and a support rod A passing through the connecting seat A is fixedly connected to the frame. The connecting seat A can slide relative to the support rod A. A threaded hole extending to the inner hole is opened on the side of the connecting seat A, and a locking screw B is connected in the threaded hole.

[0010] Furthermore, the spray nozzle is fixedly connected to a connecting seat B, and a pair of support rods B passing through the connecting seat B are fixedly connected to the frame. The connecting seat B can slide relative to the support rods B. A threaded hole is opened on the side of the connecting seat B, which extends to one of the inner holes, and a locking screw C is connected in the threaded hole.

[0011] Furthermore, a guide roller B is provided in front of the adjustment mechanism.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The plastic film spraying device for diaper packaging of the present invention is reasonably designed, easy to use, and highly practical. It realizes the adaptive correction adjustment of the plastic film position, so that the distance from the spraying position to the edge of the plastic film is basically consistent, ensuring the spraying effect and the accuracy of the spraying position, and guaranteeing the packaging effect; at the same time, it has the plastic film tension adjustment function.

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0014] Figure 1 This is a side view of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the adjustment frame in an embodiment of this utility model; Figure 3 This is a top view of the electric control mechanism in an embodiment of this utility model; Figure 4 This is a schematic diagram of the operation of the slot-type photoelectric switch according to an embodiment of this utility model; Figure 5 This is a circuit block diagram of an embodiment of the present invention; Explanation of the numbers in the diagram: 100-Frame, 110-Guide roller A, 200-Groove photoelectric switch, 210-Connecting seat A, 220-Support rod A, 230-Locking screw B, 300-Spray nozzle, 310-Connecting seat B, 320-Support rod B, 330-Locking screw C, 400-Adjusting mechanism, 410-Adjusting frame, 411-Long groove, 412-Rack, 420-Adjusting roller A, 430-Adjusting roller B, 431-Roller shaft, 440-Locking screw A, 450-Guide shaft, 460-Gear, 470-Motor, 480-Lead screw, 490-Adjusting seat, 500-Guide roller B, 600-Plastic film. Detailed Implementation

[0015] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] like Figures 1-4 As shown, a plastic film adhesive spraying device for diaper packaging includes a frame 100. Two guide rollers A110, one above the other, are fixedly connected to the frame 100 for the plastic film to pass over. The plastic film passes under the lower guide roller A110 and over the upper guide roller A110. A slotted photoelectric switch 200 for sensing the edge of the plastic film and an adhesive spraying head 300 for spraying adhesive onto the plastic film are arranged between the two guide rollers A110. The frame also has an adjustment mechanism 400 located in front of the lower guide roller A for adjusting the left and right position of the plastic film. The adjustment mechanism includes an adjustment frame 410 and an electric control mechanism for controlling the left and right movement of the adjustment frame. The adjustment frame has an adjustment roller A420 and an adjustment roller B430 arranged one in front of the other. The plastic film passes over the adjustment rollers A420 and B430. This utility model relates to a plastic film adhesive spraying device for diaper packaging, which has a correction function. A slotted photoelectric switch senses the edge position of the plastic film to determine if the film has shifted left or right. This, in turn, controls the electric control mechanism to adjust the left and right positions of the adjustment frame, compensating for the film's offset in real time. This ensures the plastic film remains stably in the set position, preventing the adhesive spraying position from shifting due to film displacement, or even spraying outside the plastic film. The device is reasonably designed, easy to use, and highly practical. It achieves adaptive correction adjustment of the plastic film position, ensuring the distance from the adhesive spraying position to the edge of the plastic film remains essentially consistent, guaranteeing both the adhesive spraying effect and accurate spraying position.

[0018] In this embodiment, in order to adjust the tension of the plastic film, the adjusting frame 410 is inclined with the front lower and the rear higher. Long grooves 411 are opened on the side plates of the adjusting frame. The adjusting roller B has roller shafts 431 extending into the long grooves at both ends. The end face of the roller shaft has threaded holes. Locking screws A440 are provided on both sides of the adjusting frame and are threaded to the threaded holes on the roller shafts. Due to the inclined setting of the adjusting frame, the height of the adjusting roller B can be adjusted by sliding the adjusting roller B along the long groove, thereby adjusting the lifting effect of the adjusting roller B on the plastic film and realizing tension adjustment. After the position of the adjusting roller B is adjusted, it is locked and fixed by the locking screws A440. The locking screws A440 are Torx screws. The two ends of the adjusting roller A420 are fixedly connected to the side plates of the adjusting frame.

[0019] In this embodiment, in order to ensure that the two ends of the adjusting roller B are adjusted synchronously, racks 412 are fixedly connected to the inner sides of the two side plates of the adjusting frame 410, and gears 460 that mesh with the racks are sleeved on the roller shafts at both ends of the adjusting roller B. The gears and racks at both ends cooperate to ensure that the movement of the two ends of the adjusting roller B is consistent.

[0020] In this embodiment, the electric control mechanism includes a lead screw 480 arranged in the left-right direction and controlled to rotate by a motor 470. An adjustment seat 490 is fixedly connected to the lower side of the adjustment frame. The adjustment seat has threaded holes that pass through its left and right end faces. The lead screw passes through the threaded holes of the adjustment seat and engages with its threads.

[0021] In this embodiment, the motor is mounted on the frame, and the lead screw is coaxially connected to the main shaft of the motor. A guide shaft 450 parallel to the lead screw is also fixedly connected to the frame, and the adjusting seat has a guide hole that slides with the guide shaft. To ensure the stability of the lead screw and the guide shaft, the left end of the lead screw is coaxially connected to the main shaft of the motor, the left end of the guide shaft is fixedly connected to the frame, the right end of the lead screw is rotatably connected to a bracket, and the right end of the guide shaft is also fixedly connected to the bracket. The bracket is fixedly connected to the frame.

[0022] In this embodiment, to enable the device to be applicable to plastic films of different widths, the slotted photoelectric switch 200 is fixedly connected to a connecting seat A210. A support rod A220 passing through the connecting seat A is fixedly connected to the frame. The connecting seat A can slide relative to the support rod A. A threaded hole extending to the inner hole is opened on the side of the connecting seat A. A locking screw B230 is connected in the threaded hole. The left and right positions of the slotted photoelectric switch 200 can be manually adjusted by sliding the connecting seat A along the support rod A to adapt to plastic films of different widths.

[0023] In this embodiment, to enable the device to be applicable to plastic films of different widths, the spray head 300 is fixedly connected to a connecting seat B310. A pair of support rods B320 passing through the connecting seat B are fixedly connected to the frame. The connecting seat B can slide relative to the support rods B. A threaded hole is opened on the side of the connecting seat B, which extends to one of the inner holes. A locking screw C330 is connected in the threaded hole. The left and right positions of the spray head 300 can be manually adjusted by sliding the connecting seat B along the support rods B to adapt to plastic films of different widths.

[0024] In this embodiment, a guide roller B500 is provided in front of the adjustment mechanism, and the plastic film passes under the guide roller B500.

[0025] In this embodiment, the slotted photoelectric switch is electrically connected to the signal input terminal of the controller, and the motor is electrically connected to the signal output terminal of the controller.

[0026] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0027] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0028] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this utility model to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0029] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A plastic film glue spraying device for a diaper package, characterized by: The device includes a frame, on which two guide rollers A, one above the other, are fixedly connected for the plastic film to pass over. Between the two guide rollers A, a slotted photoelectric switch for sensing the edge of the plastic film and a spray nozzle for spraying adhesive onto the plastic film are provided. The frame also has an adjustment mechanism located in front of the lower guide roller A for adjusting the left and right position of the plastic film. The adjustment mechanism includes an adjustment frame and an electric control mechanism for controlling the left and right movement of the adjustment frame. The adjustment frame has an adjustment roller A and an adjustment roller B arranged one in front of the other.

2. The diaper packaging plastic film glue spraying device according to claim 1, characterized in that: The adjusting frame is inclined with the front lower and the rear higher. Long grooves are opened on the side plates of both sides of the adjusting frame. The adjusting roller B has roller shafts at both ends that extend into the long grooves. The end face of the roller shaft has threaded holes. Locking screws A are provided on both sides of the adjusting frame and are threadedly connected to the threaded holes on the roller shaft.

3. The diaper packaging plastic film glue spraying device according to claim 2, characterized in that: The inner sides of the two side plates of the adjusting frame are fixedly connected with racks, and gears that mesh with the racks are sleeved on the roller shafts at both ends of the adjusting roller B.

4. The diaper packaging plastic film glue spraying device according to claim 1, characterized in that: The electric control mechanism includes a lead screw that is arranged in the left-right direction and rotated by a motor. An adjustment seat is fixedly connected to the lower side of the adjustment frame. The adjustment seat has threaded holes that pass through its left and right end faces. The lead screw passes through the threaded holes of the adjustment seat and engages with its threads.

5. The diaper packaging plastic film glue spraying device according to claim 4, characterized in that: The motor is mounted on the frame, and the lead screw is coaxially connected to the main shaft of the motor. A guide shaft parallel to the lead screw is also fixedly connected to the frame, and the adjusting seat has a guide hole that slides with the guide shaft.

6. The diaper packaging plastic film glue spraying device according to claim 1, characterized in that: The slotted photoelectric switch is fixedly connected to a connecting seat A. A support rod A is fixedly connected to the frame, passing through the connecting seat A. The connecting seat A can slide relative to the support rod A. A threaded hole is opened on the side of the connecting seat A, which extends to the inner hole. A locking screw B is connected in the threaded hole.

7. The diaper packaging plastic film glue spraying device according to claim 1, characterized in that: The spray nozzle is fixedly connected to a connecting seat B. A pair of support rods B passing through the connecting seat B are fixedly connected to the frame. The connecting seat B can slide relative to the support rods B. A threaded hole is opened on the side of the connecting seat B, which leads to one of the inner holes. A locking screw C is connected in the threaded hole.

8. The diaper packaging plastic film glue spraying device according to claim 1, characterized in that: A guide roller B is provided in front of the adjustment mechanism.

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