Packing material abnormal position identifying and removing device for paging machine

Abstract

The utility model provides a packing material abnormal position identifying and rejecting device for a paging machine, which relates to the technical field of packing equipment and comprises an inclination detection component, an overlapping detection component, a rejecting component and a control system. The inclination detection assembly is arranged above a conveying belt at an outlet of the paging machine and comprises two sensors which are arranged at intervals in the direction perpendicular to the packaging material conveying direction. The overlapping detection assembly is arranged on the downstream of the inclination detection assembly and comprises a pressing wheel, an elastic support and a proximity switch, and a packing material thickness gap is reserved between the pressing wheel and the conveying belt; the removing assembly comprises a rotating platform arranged on the downstream of the conveying belt, and one end of the rotating platform is connected with an output shaft of a servo motor. The control system is electrically connected with the detection assemblies and controls the removing assembly to operate according to the detection signals. The device can accurately detect the inclination and overlapping states of the packing materials after paging, abnormal packing materials are processed in time in a shutdown manual rejection mode or an automatic rejection mode through a rotating platform, and the third-stage printing quality problem caused by the position abnormity of the packing materials is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packaging equipment, specifically relates to a package material abnormal position identification and removing device for page separator. BACKGROUND

[0002] In the pharmaceutical industry production, the package material such as small box and bag needs to be separated by page separator and then be printed in three stages. At present, due to some technical defects of the page separator in the separating process, the package material is prone to tilt or overlap in the separating process. Specifically, when the length-width ratio of the package material is large, the package material is prone to tilt due to the fact that the baffle of the page separator cannot completely limit the package material walking position. At the same time, due to the friction between the package materials and the abrasion of the reversing wheel used to separate the package materials, the package materials cannot be completely separated or overlapped. For bag-shaped package materials, due to the fact that the whole is relatively soft, the upper and lower ends are prone to deformation under stress, and the overlap problem caused by tilt or wrinkle after separation is more likely to occur.

[0003] The tilt or overlap problem of the package material after separation will seriously affect the quality of the subsequent three-stage printing. When the package material is tilted or overlapped, the three-stage printing text will be tilted, characters will be missing, and even the quality problem of missing printing will occur. This not only causes a large amount of waste of package materials, reduces production efficiency, but also increases the labor intensity of the operators. Especially in the sealing production line, if the abnormal package material is handled by stopping the machine, the package material will also be damaged due to the high temperature of the heating block.

[0004] There is no ready-made package material tilt and overlap detection device for the page separator on the market at present. There is a lack of a solution in the prior art that can timely discover and handle the package material separation abnormality, and cannot effectively prevent the three-stage printing quality defects caused by the package material separation problem. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a package material abnormal position identification and removing device for page separator, which detects the tilt degree of the package material by photoelectric sensor and detects the overlap state of the package material by pressure roller, and timely handles the abnormal package material by adopting the stopping manual removing or rotating platform automatic removing mode according to different production line characteristics, so as to solve the three-stage printing quality problem caused by the abnormal position of the package material after separation.

[0006] To achieve the above-mentioned purpose, the utility model realizes by the following technical scheme:

[0007] A package material abnormal position identification and removing device for page separator, comprising a conveying belt located at the outlet of the page separator;

[0008] A tilt detection assembly is arranged above the conveying belt at the outlet of the page separator, which includes a first sensor and a second sensor arranged in parallel to the conveying direction of the packaging material, for detecting the time difference when the two sides of the packaging material pass through the tilt detection assembly to determine whether the packaging material is tilted; if the time difference is greater than a set value, it indicates that the packaging material is tilted.

[0009] An overlap detection assembly is arranged downstream of the tilt detection assembly, which includes a compression roller, an elastic bracket for mounting the compression roller, and a proximity switch for detecting the displacement of the compression roller, and the reserved distance between the compression roller and the conveying belt is the thickness of a packaging material; when the packaging materials overlap, the thickness of the packaging material passing through the compression roller is greater than the thickness of a packaging material, which is used to detect whether the packaging materials overlap, and the detected displacement of the compression roller is fed back to the proximity switch; if the proximity switch detects the displacement of the compression roller, it indicates that the packaging materials overlap.

[0010] A rejection assembly includes a rotating platform arranged downstream of the conveying belt, one end of the rotating platform is connected to the output shaft of a servo motor, the output shaft of the servo motor is perpendicular to the conveying direction of the conveying belt at the outlet of the page separator, and the height of the rotating platform is lower than the height of the conveying belt; under normal working conditions, the direction of the rotating platform remains connected with the direction of the conveying belt; when the out-of-position packaging material moves to the rotating platform, the rotating platform rotates to the vertical direction, so that the out-of-position packaging material cannot continue to move in the direction of the conveying belt, but is blocked by the rotating platform and falls along the direction of the rotating platform.

[0011] A control system is electrically connected to the tilt detection assembly and the overlap detection assembly, which controls the operation of the rejection assembly when the out-of-position packaging material reaches the rejection assembly according to the detection signals of the tilt detection assembly and the overlap detection assembly.

[0012] Further, an encoder is arranged on the conveying belt to detect the running distance of the conveying belt.

[0013] Further, the rejection assembly further includes a collection box arranged below the rotating platform.

[0014] Further, the first sensor and the second sensor are both photoelectric sensors.

[0015] Further, the control system includes a programmable controller and a touch screen, and the touch screen is used to adjust the time difference parameter of the first sensor and the second sensor.

[0016] Further, the elastic support comprises a fixed seat mounted on both sides of the conveying belt and a supporting rod mounted on the fixed seat through a spring rebound rotating shaft, and the mounting shaft of the pressing wheel is fixedly mounted on the supporting rod, and the mounting position of the spring rebound rotating shaft is not collinear with the mounting shaft of the pressing wheel. The elastic support is used for supporting the pressing wheel, the spring rebound rotating shaft enables the pressing wheel to have a freedom degree of upward displacement, and enables the pressing wheel to automatically rebound to the initial position after the upward displacement.

[0017] Further, the end of the supporting rod is provided with a metal sheet, and the metal sheet is close to the proximity switch.

[0018] Further, the pressing wheel is horizontally arranged above the outlet conveying belt of the page separator through the support, and the mounting shaft of the pressing wheel is arranged in the direction perpendicular to the conveying direction of the outlet conveying belt of the page separator.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The utility model discloses a page separator, which comprises a conveying belt, a page separator, a pressing wheel and a control system.

[0021] 2. The utility model adopts a double-sensor detection time difference mode to judge the inclination degree of the package material, adopts a pressing wheel combined with a proximity switch to detect the overlapping state of the package material, and has simple and reliable detection mode, does not cause secondary damage to the package material, has high detection precision, and can accurately identify the abnormal state of the package material.

[0022] 3. The control system of the utility model can adjust detection parameters through a touch screen, so that the detection device is applicable to different specifications of package materials, improves the universality of the device, and simultaneously, through real-time detection of the running distance of the conveying belt by an encoder, the running time of the rejection component can be accurately controlled.

[0023] 4. The utility model innovatively designs a rotating platform type rejection component, realizes automatic rejection of the abnormal package material by controlling the rotation of the rotating platform, is especially suitable for a sealing production line that cannot be stopped for processing, avoids thermal damage of the package material caused by stopping, simultaneously reduces the labor intensity of manual rejection, and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the device;

[0025] Figure 2 It is a structural schematic view of the overlapping detection component;

[0026] In the drawings:

[0027] 1 conveyor belt; 1.1 encoder; 2 overlap detection assembly; 2.1 pinch roller; 2.2 auxiliary pinch roller; 2.3 fixed seat; 2.4 support rod; 2.5 metal sheet; 2.6 proximity switch; 3 tilt detection assembly; 3.1 first sensor; 3.2 second sensor; 4 rejection assembly; 4.1 rotating platform; 4.2 collection box; 4.3 servo motor; 5 downstream conveyor belt; 6 heating block; 7 print head; 8 hopper; 9 page separation stopper. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] As shown in Figure 1 The package material abnormal position identification and rejection device for the page separator provided by the present application mainly comprises a tilt detection assembly 3, an overlap detection assembly 2, a rejection assembly 4 and a control system, and the detection and processing of the abnormal position of the package material after page separation are realized through the cooperation of these assemblies.

[0031] As shown in Figure 1 The tilt detection assembly 3 is installed above the conveyor belt 1 at the outlet of the page separator, and comprises a first sensor 3.1 and a second sensor 3.2 which are arranged in parallel to the package material conveying direction. In this embodiment, the first sensor 3.1 and the second sensor 3.2 are both selected as deep FX-620AN photoelectric sensors, which have the characteristics of simple installation, convenient debugging and adjustable focus control spot size, and are particularly suitable for small box spacing detection scenarios. When the package material passes through the two sensors after page separation, whether the package material is tilted is judged according to the time difference of the package material passing through the sensors on both sides. When the detected time difference is greater than the set value, it indicates that the package material has a tilt phenomenon.

[0032] As shown in Figure 2As shown, the overlap detection assembly 2 is arranged upstream of the inclination detection assembly 3, and includes a pressure roller 2.1, an elastic support, and a proximity switch 2.6. The elastic support includes a fixed seat 2.3 arranged on both sides of the conveying belt 1, and a support rod 2.4 rotatably arranged on the fixed seat 2.3 by a spring elastic pivot. The mounting shaft of the pressure roller 2.1 is fixedly arranged on the support rod 2.4, and the rotation shaft of the pressure roller 2.1 is not collinear with the mounting position of the spring elastic pivot. In addition, a metal sheet 2.5 is arranged at the end of the support rod 2.4, and the metal sheet 2.5 is close to the proximity switch 2.6. The pressure roller 2.1 is horizontally arranged above the conveying belt 1 at the outlet of the page machine by the support, and the axis direction of the mounting shaft of the pressure roller 2.1 is perpendicular to the conveying direction of the conveying belt 1. The reserved distance between the pressure roller 2.1 and the conveying belt 1 is the thickness of one package material. When the package materials overlap, the thickness of the package materials passing through the pressure roller 2.1 will be greater than the thickness of one package material, and the pressure roller 2.1 will be displaced upward. At the same time, the metal sheet 2.5 on the support rod 2.4 passes through the proximity switch 2.6, and the proximity switch 2.6 detects the displacement of the pressure roller 2.1, thereby indicating that the package materials overlap. In addition, an auxiliary pressure roller 2.2 is arranged downstream of the pressure roller 2.1.

[0033] As shown in FIG. 4, the page machine 1 includes a page machine outlet conveying belt 1, an inclination detection assembly 3, an overlap detection assembly 2, a rejection assembly 4, and a control system. Figure 1 As shown, the rejection assembly 4 includes a rotating platform 4.1 arranged downstream of the page machine outlet conveying belt 1, and a collection box 4.2 arranged below the rotating platform 4.1. One end of the rotating platform 4.1 is connected with the output shaft of a servo motor 4.3, the output shaft of the servo motor 4.3 is perpendicular to the conveying direction of the conveying belt 1, and the mounting height of the rotating platform 4.1 is lower than the conveying belt 1. In normal working conditions, the direction of the rotating platform 4.1 is consistent with the direction of the conveying belt 1. When an abnormal package material is detected and moves to the rotating platform 4.1, the rotating platform 4.1 will rotate to the vertical direction to block the abnormal package material from continuing to move forward, so that the abnormal package material falls along the direction of the rotating platform 4.1 into the collection box 4.2 to complete the rejection. Subsequently, the rotating platform 4.1 is quickly reset to be consistent with the direction of the conveying belt 1 to ensure that the next normal package material passes through smoothly.

[0034] The control system includes a programmable controller and a touch screen, and is electrically connected with the inclination detection assembly 3 and the overlap detection assembly 2. The touch screen is used to adjust the time difference parameter of the first sensor 3.1 and the second sensor 3.2, so that the detection device can adapt to the detection requirements of different specifications of package materials. In order to realize accurate rejection, an encoder 1.1 is arranged on the page machine conveying belt 1 in the embodiment, and is used to detect the running distance of the conveying belt 1. The control system controls the rotation of the rotating platform 4.1 according to the distance information detected by the encoder 1.1, in combination with the detection signals of the inclination detection assembly 3 and the overlap detection assembly 2, when the abnormal package material reaches the rejection assembly 4.

[0035] In a specific embodiment,

[0036] The device is arranged between a downstream conveying belt 5 and a page separator, and is used for providing the package material after sealing and packaging to the downstream conveying belt 5.

[0037] The page separator comprises a hopper 8 and a page blocking sheet 9, the hopper 8 is used for filling the unsealed package material to be packaged, and the page blocking sheet 9 is used for separating the package material to be packaged.

[0038] The auxiliary compression wheel 2.2 is used for flattening the package material, so that the package material is flat and enters the heating block 6 to complete the sealing.

[0039] The encoder 1.1 is used for detecting the real-time position of the package material, and the above detection signals are transmitted to the control system.

[0040] The package material abnormal position identification and removal device can complete the detection and treatment of the abnormal package material through the cooperation of different components in actual application.

[0041] When the package material is separated from the page separator, it firstly passes through the overlap detection assembly 2, and will pass through the pressure roller 2.1 detection point. The pressure roller 2.1 is horizontally arranged above the conveying belt 1 through the elastic support, and a gap of the thickness of the package material is reserved between the pressure roller 2.1 and the conveying belt 1. When a single package material passes through, the pressure roller 2.1 basically remains stationary; when the package material overlaps, the pressure roller 2.1 will be pushed upward due to the increase in the thickness of the passing package material, and the metal sheet 2.5 installed on the support rod 2.4 will pass through the proximity switch 2.6, and the proximity switch 2.6 will detect the displacement signal of the pressure roller 2.1, and determine that the package material overlaps. Since the installation shaft of the pressure roller 2.1 and the installation position of the spring rebound shaft are not collinear, under the action of the spring, the pressure roller 2.1 will automatically rebound to the initial position after detection is completed, in preparation for the next detection.

[0042] When passing through the inclination detection assembly 3, the first sensor 3.1 and the second sensor 3.2 detect the time difference of the package material passing through. Since the two sensors are arranged vertically to the conveying direction of the package material and parallel to each other, when the package material passes through normally, its two sides will pass through the two sensors almost at the same time, and the time difference is small; when the package material is inclined, the time difference of its two sides passing through the sensors will increase significantly. A suitable time difference threshold is set in advance through the touch screen, and when the detected time difference is greater than the threshold, it can be determined that the package material is inclined.

[0043] When the inclination detection assembly 3 or the overlap detection assembly 2 detects an abnormal package material, the control system will issue an abnormal signal. For a production line such as a small box printing that can be stopped for processing, the control system directly controls the page separator to stop running and issues an alarm, and the operator can take out the abnormal package material; for a certain piece sealing production line that cannot be stopped, the control system monitors the running distance of the conveying belt 1 in real time through the encoder 1.1, and when the abnormal package material runs to the rotating platform 4.1, the control servo motor 4.3 drives the rotating platform 4.1 to rotate to the vertical direction, so that the abnormal package material falls along the platform into the collection box 4.2 to complete automatic rejection.

[0044] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A sheet material abnormal position recognition and ejecting device for a sheeting machine, comprising a conveyor belt at an exit of the sheeting machine, characterized in that, Also comprising: a tilt detection assembly arranged above the conveying belt, the tilt detection assembly comprising a first sensor and a second sensor arranged in parallel to the conveying direction of the packaging material, for detecting the time difference when the two sides of the packaging material pass through the tilt detection assembly to determine whether the packaging material is tilted; an overlap detection assembly arranged upstream of the tilt detection assembly, comprising a pressure roller, an elastic support mounting the pressure roller, and a proximity switch for detecting the displacement of the pressure roller; the pressure roller and the conveying belt are separated by a distance of one packaging material thickness, for detecting whether the packaging material is overlapped, and the detected displacement of the pressure roller is fed back to the proximity switch; a rejection assembly comprising a rotating platform arranged downstream of the conveying belt, one end of the rotating platform being connected to the output shaft of a servo motor, the output shaft of the servo motor being perpendicular to the conveying direction of the conveying belt at the outlet of the page separator, the height of the rotating platform being lower than the height of the conveying belt; a control system electrically connected to the tilt detection assembly and the overlap detection assembly, for controlling the operation of the rejection assembly according to the detection signals of the tilt detection assembly and the overlap detection assembly.

2. The sheet material abnormal position recognition and ejecting apparatus for a sheet stacking machine according to claim 1, wherein Further comprising an encoder arranged on the conveying belt, for detecting the running distance of the conveying belt.

3. The sheet material abnormal position recognition and ejecting apparatus for a sheet stacking machine according to claim 1, wherein The rejection assembly further comprises a collection box arranged below the rotating platform.

4. The sheet material abnormal position recognition and ejecting apparatus for a sheet stacking machine according to claim 1, wherein Both the first sensor and the second sensor are adjustable focus photoelectric sensors.

5. The sheet material abnormal position recognition and ejecting apparatus for a sheet stacking machine according to claim 1, wherein The control system comprises a programmable controller and a touch screen, the touch screen being used to adjust the time difference parameter of the first sensor and the second sensor.

6. The sheet material abnormal position recognition and ejecting apparatus for a sheet stacking machine according to claim 1, wherein The elastic support comprises a fixed seat mounted on both sides of the conveying belt, and a support rod mounted on the fixed seat through a spring rebound shaft, the mounting shaft of the pressure roller being fixedly mounted on the support rod, the mounting positions of the mounting shaft of the pressure roller and the spring rebound shaft being not collinear.

7. A sheet material abnormal position recognition and ejecting apparatus for a sheet stacking machine according to claim 6, wherein The end of the support rod is provided with a metal sheet, the metal sheet being close to the proximity switch.

8. The sheet material abnormal position recognition and ejecting apparatus for a sheet stacking machine according to claim 6, wherein The pressure roller is horizontally arranged above the conveying belt through the elastic support, the axis direction of the mounting shaft of the pressure roller being perpendicular to the conveying direction of the conveying belt.

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