Automatic deviation correcting device for wrapping machine transparent paper

Abstract

This utility model belongs to the field of tobacco packaging technology and discloses an automatic correction device for the transparent paper of a packaging machine. It includes a first support and a second support. A support shaft is elastically mounted on the first support, and an abutment shaft coaxial with the support shaft is mounted on the second support. The device also includes a correction sensor, a drive device, and a control device. The correction sensor is located on one side of the transparent paper's transmission path to detect any deviation. The drive device is mounted on the second support, and its output end is connected to the abutment shaft, driving the abutment shaft to move closer to or away from the support shaft along its axial direction. The control device is electrically connected to the correction sensor and the drive device and is configured to receive the offset data from the correction sensor and control the drive device's operation. This automatic correction device for the transparent paper of a packaging machine, through precise control, can significantly improve the integrity, symmetry, and sealing of product packaging, reduce product quality problems caused by packaging defects, improve production continuity, and accelerate digital transformation.

Description

Technical Field

[0001] This utility model relates to the field of tobacco packaging technology, and in particular to an automatic correction device for the transparent paper of a packaging machine. Background Technology

[0002] After cigarette packs are packaged into cartons, a layer of transparent paper is usually wrapped on the surface of the carton using a packaging machine to protect and enhance the appearance of the outer packaging.

[0003] In related technologies, the substrate of transparent paper is a transparent paper roll. The transparent paper roll is held on the frame by a clamping mechanism. The starting end of the transparent paper roll is transported to the next process after passing through each roller under the traction of the traction mechanism. During the transmission process, the transparent paper is prone to displacement. Due to the inaccurate position of the transparent paper, the finished packaged product may be incomplete, asymmetrical, or skewed, which affects the overall appearance of the product. The packaging is not sealed tightly, which increases the risk of the product getting damp, contaminated, or damaged. This not only affects product quality and customer satisfaction, but also increases the company's operating costs and management difficulty.

[0004] Therefore, there is an urgent need to design a new automatic correction device for the transparent paper of packaging machines to improve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic correction device for transparent paper in packaging machines, so as to solve the technical problems of incompleteness, asymmetry or skewing of transparent paper during the transmission process.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The automatic correction device for transparent paper in a packaging machine provided by this utility model includes a first bracket and a second bracket arranged opposite to and spaced apart from each other. A support shaft is elastically provided on the first bracket, and an abutment shaft coaxially arranged with the support shaft is provided on the second bracket. The device also includes:

[0008] A deviation correction sensor is disposed on one side of the transmission path of the transparent paper to detect the deviation of the transparent paper.

[0009] A driving device is mounted on the second bracket. The output end of the driving device is connected to the abutment shaft, which drives the abutment shaft to move closer to or away from the support shaft along its axial direction to adjust the position of the transparent paper roll.

[0010] A control device electrically connected to the correction sensor and the drive device, the control device being configured to receive offset data from the correction sensor and control the operation of the drive device.

[0011] The web-alignment sensor detects the position of the transparent paper in real time. When the deviation of the transparent paper exceeds a preset threshold, the web-alignment sensor converts the deviation data into a quantifiable signal and sends it to the control device. The control device then controls the drive unit to move the abutment shaft, thereby adjusting the position of the transparent paper roll. Through the precise control of the automatic web-alignment device, the integrity, symmetry, and sealing of product packaging can be significantly improved, reducing product quality problems caused by packaging defects, enhancing brand image, reducing scrap rates, and saving packaging material costs. The automated web-alignment device replaces frequent manual adjustments and monitoring, saving labor and manpower costs, improving production continuity, and accelerating digital transformation.

[0012] As a preferred embodiment of the automatic correction device for transparent paper in a packaging machine, the correction sensor is provided with an adjustment bracket. One side of the adjustment bracket is provided with a waist-shaped groove in a direction perpendicular to the transmission path of the transparent paper. A connector that can be detachably connected to the frame of the packaging machine passes through the waist-shaped groove.

[0013] By installing or removing the connector, the adjustment bracket and the correction sensor can be installed on or removed from the packaging machine frame for easy replacement. In addition, the position of the adjustment connector in the waist groove can fine-tune the installation position of the correction sensor, making the installation accuracy of the correction sensor higher.

[0014] As a preferred embodiment of the automatic correction device for the transparent paper in a packaging machine, the frame of the packaging machine is also equipped with a scale, the reading direction of which is parallel to the axial direction of the transparent paper roll.

[0015] The ruler allows operators to intuitively see the position of the transparent paper, making it convenient to record data and perform manual fine-tuning, providing good controllability.

[0016] As a preferred embodiment of the automatic correction device for the transparent paper of a packaging machine, the driving device includes:

[0017] A connecting plate, which is connected to the abutment shaft, and a guide piece penetrating the other is provided on one of the connecting plate and the second bracket;

[0018] A lead screw, the axis of which is parallel to the axis of the abutment shaft, one end of which is threaded to the connecting plate, and the other end of which passes through the second bracket;

[0019] A drive motor is mounted on the connecting plate and its output end is connected to the lead screw.

[0020] Start the drive motor. The forward or reverse rotation of the drive motor drives the lead screw to rotate synchronously. The connecting plate, which is threaded with the lead screw, moves along the axial direction of the guide under the constraint of the guide, so that the abutment shaft connected to the connecting plate moves toward or away from the support shaft, thereby adjusting the position of the transparent paper roll, that is, adjusting the position of the transparent paper.

[0021] As a preferred embodiment of the automatic correction device for the transparent paper of the packaging machine, the connecting plate and the drive motor are located on the side of the second bracket away from the first bracket.

[0022] The connecting plate and drive motor are located on the outside of the first bracket, which is convenient for operators to inspect and maintain, and does not occupy the space for placing the transparent paper roll, making the layout more reasonable.

[0023] As a preferred embodiment of an automatic alignment device for the transparent paper of a packaging machine, the guide component includes:

[0024] A guide rod, the axis of which is parallel to the axis of the lead screw, one end of which is disposed on the connecting plate and the other end of which passes through the second bracket.

[0025] The guide rod converts the rotational motion of the lead screw and connecting plate into linear motion, thus guiding the movement of the connecting plate.

[0026] As a preferred embodiment of the automatic correction device for the transparent paper of a packaging machine, the guide rod is provided with multiple rods.

[0027] Multiple guide rods offer greater stability and adjustment precision.

[0028] As a preferred embodiment of the automatic correction device for transparent paper in a packaging machine, the connecting plate has an abutment groove on one side that matches the abutment shaft, a limit ring is provided on the outer periphery of the abutment shaft, a nut is threaded to the end of the abutment shaft, the end face of the connecting plate abuts against the limit ring, and one side of the nut is movably pressed against the other end face of the connecting plate.

[0029] The connecting plate's abutting groove abuts against the outer circumference of the abutting shaft. The nut is screwed onto the threaded section of the abutting shaft until the end face of the nut and the limiting ring clamp the connecting plate between them, so that the movement of the connecting plate can drive the abutting shaft to move synchronously. The structure is simple and easy to manufacture.

[0030] As a preferred embodiment of the automatic correction device for the transparent paper of the packaging machine, the abutment shaft is keyed to the second bracket.

[0031] A key block is provided on the circumference of the abutment shaft along its axial direction. A keyway is provided in the second bracket to fit the key block. The key block and the keyway are matched to achieve the key connection between the abutment shaft and the second bracket, thereby limiting the relative rotation between the two and ensuring good stability.

[0032] As a preferred embodiment of the automatic correction device for the transparent paper of the packaging machine, the end of the abutment shaft facing the support shaft is tapered.

[0033] The tapered abutment shaft end can accommodate transparent paper rolls with different inner diameters, making it more versatile.

[0034] The beneficial effects of this utility model are:

[0035] The web-alignment sensor detects the position of the transparent paper in real time. When the deviation of the transparent paper exceeds a preset threshold, the web-alignment sensor converts the deviation data into a quantifiable signal and sends it to the control device. The control device then controls the drive unit to move the abutment shaft, thereby adjusting the position of the transparent paper roll. Through the precise control of the automatic web-alignment device, the integrity, symmetry, and sealing of product packaging can be significantly improved, reducing product quality problems caused by packaging defects, enhancing brand image, reducing scrap rates, and saving packaging material costs. The automated web-alignment device replaces frequent manual adjustments and monitoring, saving labor and manpower costs, improving production continuity, and accelerating digital transformation. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the automatic correction device for the transparent paper of the packaging machine provided in this embodiment of the utility model;

[0037] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0038] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle.

[0039] In the picture:

[0040] 1. First bracket; 2. Second bracket; 3. Abutment shaft; 31. Limiting ring; 32. Nut; 4. Correction sensor; 41. Adjustment bracket; 411. Waist-shaped groove; 42. Scale; 5. Drive device; 51. Connecting plate; 511. Abutment groove; 52. Lead screw; 53. Drive motor; 54. Guide rod. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] Combination Figures 1-3 As shown, this embodiment provides an automatic correction device for transparent paper in a packaging machine, including a first support 1 and a second support 2 arranged opposite to each other and spaced apart. The gap between the first support 1 and the second support 2 is used to place the transparent paper roll. A support shaft is elastically provided on the first support 1, and an abutment shaft 3 is provided on the second support 2, which is coaxially arranged with the support shaft. The transparent paper roll is stably supported between the first support 1 and the second support 2 by the abutment shaft 3 and the support shaft, and the transparent paper roll can be rotated and the transparent paper is transported.

[0046] Furthermore, such as Figure 1As shown, the automatic deviation correcting device for cellophane of a packaging machine further comprises a deviation correcting sensor 4, a driving device 5 and a control device, wherein the deviation correcting sensor 4 is arranged at one side of the transmission path of cellophane and is configured to detect the deviation condition of the cellophane. In this embodiment, the deviation correcting sensor 4 is arranged in a C-shape, and the measuring structures of the deviation correcting sensor 4 are located on two opposite inner side walls of the deviation correcting sensor 4, so that the cellophane is transmitted in the gap between the two opposite inner side walls of the deviation correcting sensor 4. Since the specific structure of the deviation correcting sensor 4 belongs to the prior art, no further description is given herein.

[0047] As Figure 1 shown, in this embodiment, the driving device 5 is arranged on the second support 2, and the output end of the driving device 5 is connected to the abutment shaft 3 to drive the abutment shaft 3 to approach or move away from the support shaft along the axial direction thereof, so as to adjust the position of the cellophane roll. The control device is electrically connected to the deviation correcting sensor 4 and the driving device 5, and the control device is configured to receive deviation data from the deviation correcting sensor 4 and control the operation of the driving device 5.

[0048] It can be understood that the deviation correcting sensor 4 detects the position of the cellophane in real time. When the deviation of the cellophane exceeds a preset threshold, the deviation correcting sensor 4 converts the deviation data into a quantifiable signal and sends the signal to the control device, and the control device controls the driving device 5 to drive the abutment shaft 3 to move, thereby adjusting the position of the cellophane roll. Through the precise regulation of the automatic deviation correcting device, the integrity, symmetry and sealing performance of product packaging can be greatly improved, product quality problems caused by packaging defects can be reduced, the brand image can be improved, the rejection rate can be reduced, the cost of packaging materials can be saved. The automatic deviation correcting device replaces frequent manual adjustment and monitoring work, saves labor and labor expenditure, improves production continuity, and accelerates digital transformation.

[0049] Further, the control device comprises a control circuit and a PLC control program. The control circuit is responsible for signal transmission and power driving, and converts the deviation data of the deviation correcting sensor 4 into control instructions for the driving mechanism. The PLC control program realizes full-process automation of cellophane deviation detection, deviation correction action and position calibration through preset logic. Meanwhile, the PLC control program can be docked with the MES system of the production line to provide a data basis for digital transformation.

[0050] To realize the installation of the deviation correcting sensor 4, as Figure 1 and Figure 2As shown, the web guiding sensor 4 is equipped with an adjusting bracket 41, which is L-shaped. One side of the adjusting bracket 41 is fixed to the web guiding sensor 4, and the other side of the adjusting bracket 41 has a waist-shaped groove 411 perpendicular to the transparent paper conveying path. A connector that can be detachably connected to the packaging machine frame passes through the waist-shaped groove 411. By installing or removing the connector, the adjusting bracket 41 and the web guiding sensor 4 can be installed on or removed from the packaging machine frame for convenient replacement. In addition, the position of the adjusting connector in the waist-shaped groove 411 can fine-tune the installation position of the web guiding sensor 4, making the installation accuracy of the web guiding sensor 4 higher. Preferably, the connector is a bolt.

[0051] In addition, such as Figure 2 As shown, the packaging machine frame is also equipped with a scale 42, the reading direction of which is parallel to the axial direction of the transparent paper roll. The scale 42 allows the operator to intuitively know the position of the transparent paper, facilitating data recording and manual fine-tuning, thus providing good controllability.

[0052] like Figure 3 As shown, the driving device 5 in this embodiment includes a connecting plate 51, a lead screw 52, ​​and a drive motor 53. The connecting plate 51 is connected to the abutment shaft 3. A guide member penetrating the other is provided on one of the connecting plate 51 and the second support 2. The axial direction of the lead screw 52 is parallel to the axial direction of the abutment shaft 3. One end of the lead screw 52 is threadedly connected to the connecting plate 51, and the other end of the lead screw 52 passes through the second support 2. The drive motor 53 is mounted on the connecting plate 51, and its output end is connected to the lead screw 52. When the drive motor 53 is started, the forward or reverse rotation of the drive motor 53 drives the lead screw 52 to rotate synchronously. The connecting plate 51, which is threadedly engaged with the lead screw 52, ​​moves along the axial direction of the guide member under the constraint of the guide member, so that the abutment shaft 3 connected to the connecting plate 51 moves toward or away from the support shaft, thereby adjusting the position of the transparent paper roll, i.e., adjusting the position of the transparent paper.

[0053] For example, the drive motor 53 in this embodiment is a stepper motor. The stepper motor has a built-in self-locking function, which can achieve high-precision control at the 0.02mm level. Combined with the stability of the lead screw 52 transmission and the low friction characteristics of the ball, it ensures that the transparent paper is accurately clamped and adjusted during the conveying process. The self-locking function locks the position after the correction is completed, effectively offsetting interference factors such as mechanical vibration and tension fluctuation, and solving the problem of transparent paper deviation and loss of control from the root.

[0054] like Figure 3As shown, the guide component includes a guide rod 54, the axis of which is parallel to the axis of the lead screw 52. One end of the guide rod 54 is mounted on the connecting plate 51, and the other end of the guide rod 54 passes through the second bracket 2. The guide rod 54 converts the rotational motion of the lead screw 52 and the connecting plate 51 into linear motion, thus guiding the movement of the connecting plate 51.

[0055] The guide rod 54 is provided in multiple forms, which provides higher stability and adjustment accuracy. Preferably, in this embodiment, there are two guide rods 54, which are parallel to each other and located at the two corners of the connecting plate 51.

[0056] In other embodiments, one, three or more guide rods 54 may be provided. The specific number of guide rods 54 can be set according to the requirements, and this embodiment does not make a specific limitation in this regard.

[0057] Optionally, the connecting plate 51 and the drive motor 53 are located on the side of the second bracket 2 opposite to the first bracket 1. The connecting plate 51 and the drive motor 53 are all located on the outside of the first bracket 1, which facilitates the inspection and maintenance by the operator and does not occupy the storage space of the transparent paper roll, making the layout more reasonable.

[0058] In some embodiments, the connecting plate 51 and the drive motor 53 may also be the second bracket 2 on the side close to the first bracket 1, so as to save the footprint of the packaging machine, make the equipment structure more compact and have better integration.

[0059] To achieve synchronous movement between the connecting plate 51 and the abutment shaft 3, see [reference needed]. Figure 3 The connecting plate 51 has an abutment groove 511 on one side that matches the abutment shaft 3. A limit ring 31 is provided on the outer periphery of the abutment shaft 3. A nut 32 is threadedly connected to the end of the abutment shaft 3. The end face of the connecting plate 51 abuts against the limit ring 31, and one side of the nut 32 is movably pressed against the other end face of the connecting plate 51. The abutment groove 511 of the connecting plate 51 abuts against the outer periphery of the abutment shaft 3. The nut 32 is screwed onto the threaded section of the abutment shaft 3 until the end face of the nut 32 and the limit ring 31 clamp the connecting plate 51 between them, so that the movement of the connecting plate 51 can drive the abutment shaft 3 to move synchronously. The structure is simple and easy to manufacture.

[0060] Preferably, the abutment shaft 3 and the second bracket 2 are keyed together. A key block is provided on the periphery of the abutment shaft 3 along its axial direction. A keyway is provided in the second bracket 2 to be adapted to the key block. The key connection between the abutment shaft 3 and the second bracket 2 is achieved by the cooperation of the key block and the keyway, thereby limiting the relative rotation between the two and ensuring good stability.

[0061] In addition, the end of the abutment shaft 3 facing the support shaft is tapered, and the tapered end of the abutment shaft 3 can adapt to transparent paper rolls with different inner diameters, thus improving its versatility.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic correction device for transparent paper in a packaging machine, comprising a first support (1) and a second support (2) arranged opposite to and spaced apart, wherein a support shaft is elastically provided on the first support (1), and an abutment shaft (3) coaxially provided on the second support (2), characterized in that, Also includes: The correction sensor (4) is set on one side of the transmission path of the transparent paper and is used to detect the skewness of the transparent paper. A driving device (5) is mounted on the second bracket (2). The output end of the driving device (5) is connected to the abutment shaft (3) to drive the abutment shaft (3) to move closer to or away from the support shaft along its axial direction in order to adjust the position of the transparent paper roll. A control device is electrically connected to the correction sensor (4) and the drive device (5), and the control device is configured to receive offset data from the correction sensor (4) and control the drive device (5) to operate.

2. The automatic correction device for the transparent paper of the packaging machine according to claim 1, characterized in that, The correction sensor (4) is provided with an adjustment bracket (41). One side of the adjustment bracket (41) is provided with a waist-shaped groove (411) in a direction perpendicular to the transparent paper conveying path. A connector that can be detachably connected to the packaging machine frame is inserted in the waist-shaped groove (411).

3. The automatic correction device for the transparent paper of the packaging machine according to claim 1, characterized in that, The packaging machine is also equipped with a scale (42) on its frame, and the reading direction of the scale (42) is parallel to the axial direction of the transparent paper roll.

4. The automatic correction device for the transparent paper of the packaging machine according to claim 1, characterized in that, The driving device (5) includes: A connecting plate (51) is connected to the abutting shaft (3), and a guide piece penetrating the other is provided on one of the connecting plate (51) and the second bracket (2); The lead screw (52) has an axial direction parallel to the axial direction of the abutment shaft (3). One end of the lead screw (52) is threadedly connected to the connecting plate (51), and the other end passes through the second bracket (2). A drive motor (53) is mounted on the connecting plate (51) and its output end is connected to the lead screw (52).

5. The automatic correction device for the transparent paper of the packaging machine according to claim 4, characterized in that, The connecting plate (51) and the drive motor (53) are located on the side of the second bracket (2) away from the first bracket (1).

6. The automatic correction device for the transparent paper of the packaging machine according to claim 4, characterized in that, The guide component includes: Guide rod (54), the axial direction of the guide rod (54) is parallel to the axial direction of the lead screw (52), one end of the guide rod (54) is disposed on the connecting plate (51), and the other end passes through the second bracket (2).

7. The automatic correction device for the transparent paper of the packaging machine according to claim 6, characterized in that, The guide rod (54) is provided in multiple parts.

8. The automatic correction device for the transparent paper of the packaging machine according to claim 4, characterized in that, The connecting plate (51) has an abutment groove (511) on one side that matches the abutment shaft (3). The abutment shaft (3) has a limit ring (31) on its outer periphery. The end of the abutment shaft (3) is threaded with a nut (32). The end face of the connecting plate (51) abuts against the limit ring (31). One side of the nut (32) is movably pressed against the other end face of the connecting plate (51).

9. The automatic alignment device for the transparent paper of a packaging machine according to any one of claims 1-8, characterized in that, The abutment shaft (3) is keyed to the second bracket (2).

10. The automatic correction device for the transparent paper of a packaging machine according to any one of claims 1-8, characterized in that, The abutment shaft (3) is tapered toward the end of the support shaft.

Images