Label stripping device for a labelling machine for packaging

Abstract

The utility model discloses a labelling machine's stripping device for packaging, including with the label release paper cooperation's stripping device body, stripping device body includes mounting panel, stripping board, top limit axle, bottom limit axle, side face lifting axle, pre -pressing axle and compaction axle, and top limit axle, bottom limit axle and side face lifting axle all rotate the installation in the front side of mounting panel, and pre -pressing axle and compaction axle are located the front side of mounting panel. The utility model discloses through a series of structure's setting, can according to the use need to adjust the vertical height position of pre -pressing axle and compaction axle before stripping, make can be applicable to the label of different thickness provides effective pressure, thereby improves the labelling stability, and can detect the tension of label release paper's size in the stripping process, and when the tension is small, automatic timely adjustment can effectively reduce the loose wrinkle situation in the stripping process, improve the stripping stability.

Description

Technical Field

[0001] This utility model relates to the field of label peeling equipment technology, and in particular to a label peeling device for a packaging labeling machine. Background Technology

[0002] In existing technologies, when labels are affixed to packaging using a labeling machine, a peeling plate is needed to peel the labels off the release paper. This requires a peeling device. According to CN222892312U, a peeling device for a packaging labeling machine is disclosed, comprising a base plate. Fixing frames are fixedly installed at both the upper and lower ends of the rear outer surface of the base plate. The front outer surface of the base plate is provided with a top limiting shaft, a bottom limiting shaft, a side lifting shaft, a pre-pressing shaft, a compaction shaft, and a peeling plate. The top limiting shaft is installed at the front of the base plate. On the right side of the upper end of the outer surface of the substrate, the bottom limiting shaft is installed on the right side of the lower end of the outer surface of the front end of the substrate; the label peeling device of the labeling machine for packaging, through the setting of the top limiting shaft, the bottom limiting shaft and the side lifting shaft, facilitates the separation of the label from the release paper at a certain angle at the position of the bottom limiting shaft, and then peels it off by the peeling plate, avoiding wrinkles in the label peeling. The setting of the pre-pressure shaft and the compaction shaft first adheres the label to the surface of the workpiece by the pre-pressure shaft, and then compacts it by the compaction shaft, improving the labeling quality;

[0003] The label peeling device of the packaging labeling machine disclosed in the above-mentioned patent can effectively peel off labels by cooperating with the peeling plate through the top limiting shaft, bottom limiting shaft, side lifting shaft, pre-pressure shaft, and compaction shaft. However, it still has the following shortcomings in use: 1. Low flexibility of use: The positions of the pre-pressure shaft and the compaction shaft are fixed. The label thickness may range from tens of micrometers (such as film labels) to more than one millimeter (such as thick kraft paper labels or anti-counterfeiting labels with foam). The fixed height of the pressure shaft cannot guarantee to provide the best pressure for all thicknesses, thus affecting the labeling stability; 2. Lack of tension monitoring and adjustment structure. During the unwinding and rewinding of the release paper with the label, when the tension is small, loosening and wrinkling are likely to occur, thus affecting the peeling. In view of the above, this application proposes a label peeling device for a packaging labeling machine. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a label-removing device for a packaging labeling machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The label peeling device of a packaging labeling machine includes a peeling device body that cooperates with the label release paper. The peeling device body includes a mounting plate, a peeling plate, a top limiting shaft, a bottom limiting shaft, a side lifting shaft, a pre-pressing shaft, and a compacting shaft. The top limiting shaft, the bottom limiting shaft, and the side lifting shaft are all rotatably mounted on the front side of the mounting plate. The pre-pressing shaft and the compacting shaft are located on the front side of the mounting plate, with the pre-pressing shaft located between the bottom limiting shaft and the compacting shaft. The label release paper passes sequentially around the top of the top limiting shaft, the bottom of the bottom limiting shaft, and the top of the side lifting shaft. The peeling plate is located at the bottom right side of the bottom limiting shaft. The peeling operation is performed by the cooperation of the peeling plate, the top limiting shaft, the bottom limiting shaft, the side lifting shaft, the pre-pressing shaft, and the compacting shaft. The specific peeling principle has been mentioned in the announcement number: CN222892312U, and will not be elaborated on separately.

[0007] Also includes:

[0008] A vertical position adjustment mechanism is installed on the front side of the mounting plate;

[0009] There are two support shafts, both of which are slidably sleeved on the front side of the mounting plate. The pre-compression shaft and the compaction shaft are rotatably sleeved on the corresponding support shafts. The vertical position adjustment mechanism is fixedly connected to the two support shafts and is used to adjust the vertical height position of the two support shafts.

[0010] The automatic tension adjustment mechanism is installed on the front side of the mounting plate and is fitted onto the label release paper. The automatic tension adjustment mechanism is used to adjust the tension of the label release paper.

[0011] Preferably, the vertical position adjustment mechanism includes a movable rod located between two support shafts. A connecting block is fixedly connected to the top of the support shafts, and the same connecting rod is fixedly connected to the front of the two connecting blocks. The top of the connecting rod is fixedly connected to the bottom of the movable rod. A mounting base is fixedly connected to the front of the mounting plate. A rectangular hole is provided on the top of the mounting base. The movable rod is slidably fitted into the rectangular hole. A T-shaped screw is rotatably installed in the rectangular hole. The movable rod is threaded onto the T-shaped screw. The threaded connection allows the movable rod to move vertically while the T-shaped screw rotates. A pointer is fixedly connected to the top right side of the movable rod. A scale located on the right side of the mounting base is fixedly installed on the front of the mounting plate. The scale has graduation lines on its front side. The pointer is located on the front side of the scale and cooperates with the graduation lines on it. The cooperation between the pointer and the scale allows for precise measurement of the vertical position of the support shaft.

[0012] Preferably, the automatic tension adjustment mechanism includes an adjusting roller and a detection roller. The adjusting roller is located at the bottom of the label release paper and is in movable contact with its bottom. The detection roller is located at the top of the label release paper and is in movable contact with its top. A first U-shaped rod is rotatably sleeved on the adjusting roller, and a second U-shaped rod is rotatably sleeved on the detection roller. The label release paper is located inside the first and second U-shaped rods. A pressure sensor is fixedly installed on the front side of the mounting plate. The top of the monitoring end of the pressure sensor is fixedly installed with the bottom of the second U-shaped rod. The pressure sensor is used to detect the extrusion pressure of the second U-shaped rod. Its detection principle is existing technology for pressure sensors, which will not be elaborated here. An electric telescopic rod is fixedly installed on the front side of the mounting plate. The bottom end of the output shaft of the electric telescopic rod is fixedly connected with the top of the first U-shaped rod. A PLC controller is fixedly installed on the front side of the mounting plate. The PLC controller is electrically connected to the electric telescopic rod and the pressure sensor. The PLC controller is used to receive signals from the pressure sensor to control the electric telescopic rod. Its control principle is existing technology, which will not be elaborated here.

[0013] Preferably, the mounting plate has two sliding holes on its front side, the support shaft is slidably disposed in the corresponding sliding hole, the connecting block is located in the corresponding sliding hole, and the sliding hole is used to allow the corresponding support shaft to move vertically.

[0014] Preferably, a positioning hole is provided on the right inner wall of the rectangular hole, and a positioning rod is fixedly connected between the top inner wall and the bottom inner wall of the positioning hole. The pointer slides and is fitted onto the corresponding positioning rod through its own mounting hole. The positioning rod is used to vertically position the pointer.

[0015] Preferably, a first support base and a second support base are fixedly installed on the front side of the mounting plate. The top of the first support base is fixedly connected to the bottom of the pressure sensor, and the first support base is used to support the pressure sensor. The bottom of the second support base is fixedly connected to the top of the electric telescopic rod, and the top of the second support base is fixedly connected to the bottom of the PLC controller, and the second support base is used to support the electric telescopic rod and the PLC controller.

[0016] Preferably, the mounting plate has a connecting seat fixedly connected to both the top and bottom rear sides. The top of the connecting seat has two bolt holes, which, when used with external bolts, allow the entire device to be fixed to an external labeling machine.

[0017] Compared with existing technologies, the beneficial effects of this utility model are:

[0018] By setting up a vertical position adjustment mechanism, the vertical height of the pre-pressure shaft and the compaction shaft can be adjusted according to the needs of use, so as to provide effective pressure for labels of different thicknesses, thereby improving labeling stability.

[0019] By setting up an automatic tension adjustment mechanism, the tension of the label release paper can be detected during the label peeling process. When the tension is too low, the adjustment roller is driven to move vertically to squeeze and adjust the tension of the label release paper, which can effectively reduce the occurrence of loosening and wrinkles during the label peeling process.

[0020] This invention, through a series of structural designs, allows for adjustment of the vertical height of the pre-pressing and compacting shafts before label removal, enabling effective pressure to be applied to labels of different thicknesses, thereby improving labeling stability. Furthermore, it can detect the tension of the label release paper during the peeling process and automatically adjust it when the tension is too low, effectively reducing loosening and wrinkling during peeling and improving peeling stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the label peeling device of the packaging labeling machine proposed in this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the label peeling device of the packaging labeling machine proposed in this utility model, showing the label release paper in the uninstalled state.

[0023] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;

[0024] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle.

[0025] In the diagram: 100, Mounting plate; 200, Top limiting shaft; 300, Side lifting shaft; 400, Bottom limiting shaft; 500, Label release paper; 600, Pre-pressing shaft; 700, Compacting shaft; 1. Vertical position adjustment mechanism; 101, Sliding hole; 102, Support shaft; 103, Connecting block; 104, Connecting rod; 105, Moving rod; 106, Mounting base; 107, T-shaped screw; 108, Positioning hole; 109, Positioning rod; 110, Pointer; 111, Scale; 2. Automatic tension adjustment mechanism; 201, Detection roller; 202, Second U-shaped rod; 203, Pressure sensor; 204, Electric telescopic rod; 205, PLC controller; 206, Adjusting roller; 207, First U-shaped rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1The label peeling device of a packaging labeling machine includes a peeling device body that cooperates with the label release paper 500. The peeling device body includes a mounting plate 100, a peeling plate, a top limiting shaft 200, a bottom limiting shaft 400, a side lifting shaft 300, a pre-pressing shaft 600, and a compaction shaft 700. The top limiting shaft 200, the bottom limiting shaft 400, and the side lifting shaft 300 are all rotatably mounted on the front side of the mounting plate 100. The pre-pressing shaft 600 and the compaction shaft 700 are located on the front side of the mounting plate 100. The pre-pressing shaft 600 is located between the bottom limiting shaft 400 and the compaction shaft 700. The label release paper 500 passes sequentially around the top of the top limiting shaft 200, the bottom of the bottom limiting shaft 400, and the top of the side lifting shaft 300. The label peeling plate is set at the bottom right side of the bottom limiting shaft 400. The top and bottom rear sides of the mounting plate 100 are fixedly connected to the connecting seat. The top of the connecting seat has two bolt holes. The bolt holes cooperate with the external bolts to fix the entire device to the external labeling machine.

[0028] In this implementation scheme: The existing device {Publication (Announcement) No.}: CN222892312U discloses a label peeling device for a packaging labeling machine. The label peeling plate, top limiting shaft 200, bottom limiting shaft 400, side lifting shaft 300, pre-compression shaft 600, and compaction shaft 700 in this application adopt the same technical means as in this prior art. These technical means will not be described in detail here. This application further improves upon this existing main body. For details, please refer to the following disclosure. To solve the technical problems existing in this prior art, such as "1. Low flexibility of use: the positions of the pre-compression shaft and the compaction shaft are fixed, and the label thickness may be..." The thickness varies from tens of micrometers (such as thin film labels) to more than one millimeter (such as thick kraft paper labels or anti-counterfeiting labels with foam). A fixed-height pressure roller cannot guarantee the best pressure for all thicknesses, thus affecting the stability of labeling. 2. The lack of a tension monitoring and adjustment structure means that when the tension is low during the unwinding and rewinding of the release paper with the label, loosening and wrinkling are likely to occur, thus affecting the peeling of the label. In combination, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem, a vertical position adjustment mechanism 1 and an automatic tension adjustment mechanism 2 have been added to this application.

[0029] It should be noted that the principle of peeling off the label by means of the peeling plate, the top limiting shaft 200, the bottom limiting shaft 400, the side lifting shaft 300, the pre-compression shaft 600 and the compaction shaft 700 has been mentioned in the announcement number: CN222892312U, and will not be elaborated on separately.

[0030] Furthermore:

[0031] Reference Figure 1-4 The label peeling device of the packaging labeling machine also includes:

[0032] Vertical position adjustment mechanism 1 is installed on the front side of mounting plate 100;

[0033] There are two support shafts 102, both of which are slidably sleeved on the front side of the mounting plate 100. The front side of the mounting plate 100 has two sliding holes 101. The support shafts 102 are slidably installed in the corresponding sliding holes 101. The sliding holes 101 are used to allow the corresponding support shafts 102 to move vertically. The preload shaft 600 and the compaction shaft 700 are respectively rotatably sleeved on the corresponding support shafts 102. The front side of the preload shaft 600 and the compaction shaft 700 is provided with a circular hole. Two first bearings are fixedly sleeved in the circular hole. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding support shaft 102. The first bearing serves to allow the corresponding support shaft 102 to be rotatably installed. The vertical position adjustment mechanism 1 is fixedly connected to the two support shafts 102.

[0034] The vertical position adjustment mechanism 1 includes a movable rod 105 located between two support shafts 102. A connecting block 103 is fixedly connected to the top of each support shaft 102, and the connecting block 103 is located within a corresponding sliding hole 101. The front sides of the two connecting blocks 103 are fixedly connected to the same connecting rod 104. The top of the connecting rod 104 is fixedly connected to the bottom end of the movable rod 105. A mounting base 106 is fixedly connected to the front side of the mounting plate 100. A rectangular hole is provided at the top of the mounting base 106. The movable rod 105 is slidably fitted into the rectangular hole. A T-shaped screw 107 is rotatably installed within the rectangular hole. A second bearing is fixedly connected between the inner walls of the two sides of the rectangular hole. The inner side of the inner ring of the second bearing is fixedly connected to the outer side of the T-shaped screw 107. The second bearing serves to allow the T-shaped screw 107 to rotate. The movable rod 105 is threaded onto the T-shaped screw 107. The top end of the movable rod 105 has a... The screw 107 has a threaded groove that is threaded to the T-shaped screw 107. The threaded connection allows the moving rod 105 to move vertically while the T-shaped screw 107 rotates. A pointer 110 is fixedly connected to the top right side of the moving rod 105. A scale 111 located on the right side of the mounting base 106 is fixedly installed on the front side of the mounting plate 100. The scale 111 has scale lines on its front side. The pointer 110 is located on the front side of the scale 111 and cooperates with the scale lines on it. The pointer 110 and the scale 111 cooperate to accurately measure the vertical height of the support shaft 102. A positioning hole 108 is opened on the inner wall of the right side of the rectangular hole. A positioning rod 109 is fixedly connected between the top inner wall and the bottom inner wall of the positioning hole 108. The pointer 110 slides and is fitted onto the corresponding positioning rod 109 through its own mounting hole. The positioning rod 109 is used to vertically position the pointer 110.

[0035] In this implementation scheme: when adjusting the height of the pre-pressure shaft 600 and the compaction shaft 700 according to the thickness of the label being peeled off, rotating the T-shaped screw 107 drives the moving rod 105 to move vertically. The moving rod 105 sequentially drives the connecting rod 104, the two connecting blocks 103, and the two support shafts 102 to move vertically. The two support shafts 102 respectively drive the pre-pressure shaft 600 and the compaction shaft 700 to move vertically. At the same time, the moving rod 105 also drives the pointer 110 to move vertically on the positioning rod 109. The distance the pre-pressure shaft 600 and the compaction shaft 700 have moved vertically is determined by the scale line indicated by the pointer 110 on the scale 111. When the required position is adjusted according to the thickness of the label, the rotation of the T-shaped screw 107 can be stopped. The adjustable vertical height of the pre-pressure shaft 600 and the compaction shaft 700 makes it suitable for providing effective pressure to labels of different thicknesses.

[0036] It should be noted that the scale lines on the ruler 111 correspond to the scale line positions required for labels of different thicknesses. These positions have been measured in advance by those skilled in the art. Therefore, during adjustment, it is only necessary to adjust the ruler to the corresponding scale line position, without the need for measurement and calculation each time.

[0037] Furthermore:

[0038] The label peeling device of the packaging labeling machine also includes an automatic tension adjustment mechanism 2, which is installed on the front side of the mounting plate 100 and sleeved on the label release paper 500;

[0039] The tension automatic adjustment mechanism 2 includes an adjusting roller 206 and a detection roller 201. The adjusting roller 206 is located at the bottom of the label release paper 500 and is in movable contact with its bottom. The detection roller 201 is located at the top of the label release paper 500 and is in movable contact with its top. A first U-shaped rod 207 is rotatably sleeved on the adjusting roller 206. A first pin is fixedly connected to both the front and rear ends of the adjusting roller 206. First bearing holes are provided on both the front and rear inner walls of the first U-shaped rod 207. A first support bearing is fixedly sleeved within the first bearing hole. The inner ring of a support bearing is fixedly connected to the outer side of the corresponding first pin. The first pin and the first support bearing cooperate to achieve the effect of rotating the adjusting roller 206 within the first U-shaped rod 207. A second U-shaped rod 202 is rotatably sleeved on the detection roller 201. The front and rear ends of the detection roller 201 are fixedly connected to the second pin. The front and rear inner walls of the second U-shaped rod 202 are provided with second bearing holes. A second support bearing is fixedly sleeved within the second bearing holes. The inner ring of the second support bearing is fixedly connected to the outer side of the corresponding second pin. The side-fixed connection, with the second pin and the second support bearing cooperating, enables the detection roller 201 to rotate and be installed inside the second U-shaped rod 202. The label release paper 500 is located inside the first U-shaped rod 207 and the second U-shaped rod 202. A pressure sensor 203 is fixedly installed on the front side of the mounting plate 100. The top of the monitoring end of the pressure sensor 203 is fixedly installed to the bottom of the second U-shaped rod 202. The pressure sensor 203 is used to detect the extrusion pressure of the second U-shaped rod 202, and its detection principle is based on existing technology of the pressure sensor 203. The specific details will not be elaborated here. An electric telescopic rod 204 is fixedly installed on the front side of the mounting plate 100. The bottom end of the output shaft of the electric telescopic rod 204 is fixedly connected to the top of the first U-shaped rod 207. A PLC controller 205 is fixedly installed on the front side of the mounting plate 100. The PLC controller 205 is electrically connected to the electric telescopic rod 204 and the pressure sensor 203. The PLC controller 205 is used to receive the signal from the pressure sensor 203 to control the electric telescopic rod 204. Its control principle is existing technology and will not be elaborated here.

[0040] The mounting plate 100 has a first support base and a second support base fixedly installed on its front side. The top of the first support base is fixedly connected to the bottom of the pressure sensor 203, and the first support base is used to support the pressure sensor 203. The bottom of the second support base is fixedly connected to the top of the electric telescopic rod 204, and the top of the second support base is fixedly connected to the bottom of the PLC controller 205, and the second support base is used to support the electric telescopic rod 204 and the PLC controller 205.

[0041] In this implementation scheme: During the label peeling process, if the release paper 500 experiences reduced tension and loosening, the supporting force on the detection roller 201 decreases. Under the action of gravity, the second U-shaped rod 202 drives the detection roller 201 to move downwards. The downward pressure exerted by the second U-shaped rod 202 on the pressure sensor 203 increases. The pressure sensor 203 transmits the detected pressure value to the PLC controller 205. When the detected pressure value reaches the threshold, the PLC controller 205 controls the electric telescopic rod 204 to start in reverse, and the output shaft of the electric telescopic rod 204... The first U-shaped rod 207 drives the adjusting roller 206 to move upward and squeeze the label release paper 500, making the label release paper 500 taut again, and the supporting force on the detection roller 201 gradually increases. The supporting force squeezes the detection roller 201 to move upward. The detection roller 201 drives the second U-shaped rod 202 to move upward and reduce the squeezing force on the pressure sensor 203. When its pressure value reaches the initial value, the PLC controller 204 controls the electric telescopic rod 204 to close, thereby realizing the purpose of automatically detecting and adjusting the tension of the label release paper 500.

[0042] It should be noted that: the preferred model of PLC controller 205 is Siemens S7-1200, the preferred model of electric telescopic rod 204 is Thomson Electrak LL, and the preferred model of pressure sensor 203 is TE Connectivity MS5837-02BA. The specific control principle is as follows: the pressure sensor 203 monitors the pressure of the extrusion plate in real time, converts it into an electrical signal and sends it to PLC controller 205. PLC controller 205 compares the actual pressure with the set value and calculates the PID output. If the pressure is lower than the set value, the extended end of electric telescopic rod 204 retracts. The specific control principle is a conventional method in this field and will not be elaborated on here.

[0043] In addition, the power supply for the PLC controller 205, pressure sensor 203 and electric telescopic rod 204 can be connected to an external industrial power supply system. The specific power supply principle is existing technology in this field and will not be elaborated here.

[0044] Working principle: In use, the entire label peeling device body is fixed to the labeling machine at the required position through the connecting seat and bolt holes with external bolts. The distance between the bottom of the pre-pressure shaft 600 and the bottom of the compaction shaft 700 and the worktable is the sum of the product thickness and the label thickness. When adjusting the height of the pre-pressure shaft 600 and the compaction shaft 700 according to the thickness of the label to be peeled off, the T-shaped screw 107 is rotated. The rotation of the T-shaped screw 107 drives the moving rod 105 to move vertically. The moving rod 105 sequentially drives the connecting rod 104, the two connecting blocks 103 and the two support shafts 102 to move vertically. The two support shafts 102 respectively drive the pre-pressure shaft 600... The pre-pressure shaft 600 and the compaction shaft 700 move vertically, while the moving rod 105 also drives the pointer 110 to move vertically on the positioning rod 109. The distance the pre-pressure shaft 600 and the compaction shaft 700 have moved vertically is judged by the scale line on the scale 111 indicated by the pointer 110. When the required position is adjusted according to the thickness of the label, the rotation of the T-shaped screw 107 can be stopped. At this time, the thread locking force between the threaded groove and the T-shaped screw 107 is used to fix the pre-pressure shaft 600 and the compaction shaft 700. The adjustable vertical height of the pre-pressure shaft 600 and the compaction shaft 700 makes it suitable for providing effective pressure to labels of different thicknesses, thereby improving the labeling stability.

[0045] After adjustment, the label removal operation can be carried out. The principle of label removal is achieved by the cooperation of the label removal plate, the top limiting shaft 200, the bottom limiting shaft 400, the side lifting shaft 300, the pre-compression shaft 600 and the compaction shaft 700. This principle has been specifically mentioned in the announcement number: CN222892312U, and will not be elaborated on here.

[0046] The pressure threshold for the electric telescopic rod 204 is pre-set via the PLC controller 205. During the label peeling process, the label release paper 500 is taut. If the tension of the label release paper 500 decreases and loosens during winding or unwinding, the supporting force on the detection roller 201 decreases. Under gravity, the second U-shaped rod 202 drives the detection roller 201 downwards. The downward pressure exerted by the second U-shaped rod 202 on the pressure sensor 203 increases. The pressure sensor 203 transmits the detected pressure value to the PLC controller 205. When the detected pressure value exceeds the threshold, the PLC controller 205 controls the electric telescopic rod 204 to reverse. The output shaft of 204 drives the adjusting roller 206 to move upward through the first U-shaped rod 207 to squeeze the label release paper 500. Under the squeezing force, the label release paper 500 is tightened again, and the supporting force on the detection roller 201 gradually increases. The supporting force squeezes the detection roller 201 to move upward. The detection roller 201 drives the second U-shaped rod 202 to move upward to reduce the squeezing force on the pressure sensor 203. When its pressure value reaches the initial value, the PLC controller 204 controls the electric telescopic rod 204 to close, thereby realizing the purpose of automatically detecting and adjusting the tension of the label release paper 500. This can effectively reduce the occurrence of loosening and wrinkles during the label peeling process and improve the label peeling stability.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A label peeling device for a packaging labeling machine, comprising a label peeling device body that cooperates with a label release paper (500), the label peeling device body comprising a mounting plate (100), a peeling plate, a top limiting shaft (200), a bottom limiting shaft (400), a side lifting shaft (300), a pre-pressing shaft (600), and a compaction shaft (700), wherein the top limiting shaft (200), the bottom limiting shaft (400), and the side lifting shaft (300) are all rotatably mounted on the mounting plate (100). On the front side of the mounting plate (100), the pre-pressing shaft (600) and the compaction shaft (700) are located on the front side of the mounting plate (100). The pre-pressing shaft (600) is located between the bottom limiting shaft (400) and the compaction shaft (700). The label release paper (500) passes sequentially around the top of the top limiting shaft (200), the bottom of the bottom limiting shaft (400), and the top of the side lifting shaft (300). The label peeling plate is set on the bottom right side of the bottom limiting shaft (400). Also includes: A vertical position adjustment mechanism (1) is installed on the front side of the mounting plate (100); There are two support shafts (102), both of which are slidably sleeved on the front side of the mounting plate (100). The pre-compression shaft (600) and the compaction shaft (700) are respectively rotatably sleeved on the corresponding support shafts (102). The vertical position adjustment mechanism (1) is fixedly connected to the two support shafts (102). The tension automatic adjustment mechanism (2) is installed on the front side of the mounting plate (100) and sleeved on the label release paper (500).

2. The label peeling device of the packaging labeling machine according to claim 1, characterized in that, The vertical position adjustment mechanism (1) includes a moving rod (105) located between two support shafts (102). A connecting block (103) is fixedly connected to the top of the support shaft (102). The same connecting rod (104) is fixedly connected to the front side of the two connecting blocks (103). The top of the connecting rod (104) is fixedly connected to the bottom end of the moving rod (105). A mounting base (106) is fixedly connected to the front side of the mounting plate (100). A rectangular hole is opened on the top of the mounting base (106). 105) Sliding sleeve is installed in rectangular hole, T-shaped screw (107) is rotatably installed in rectangular hole, moving rod (105) is threaded on T-shaped screw (107), pointer (110) is fixedly connected to the top right side of moving rod (105), scale (111) located on the right side of mounting base (106) is fixedly installed on the front side of mounting plate (100), scale line is provided on the front side of scale (111), pointer (110) is located on the front side of scale (111) and cooperates with the scale line on it.

3. The label peeling device of the packaging labeling machine according to claim 1, characterized in that, The automatic tension adjustment mechanism (2) includes an adjusting roller (206) and a detection roller (201). The adjusting roller (206) is located at the bottom of the label release paper (500) and is in movable contact with its bottom. The detection roller (201) is located at the top of the label release paper (500) and is in movable contact with its top. A first U-shaped rod (207) is rotatably sleeved on the adjusting roller (206), and a second U-shaped rod (202) is rotatably sleeved on the detection roller (201). The label release paper (500) is located inside the first U-shaped rod (207) and the second U-shaped rod (202). A pressure sensor (203) is fixedly installed on the front side of the plate (100). The top of the monitoring end of the pressure sensor (203) is fixedly installed to the bottom of the second U-shaped rod (202). An electric telescopic rod (204) is fixedly installed on the front side of the mounting plate (100). The bottom end of the output shaft of the electric telescopic rod (204) is fixedly connected to the top of the first U-shaped rod (207). A PLC controller (205) is fixedly installed on the front side of the mounting plate (100). The PLC controller (205) is electrically connected to the electric telescopic rod (204) and the pressure sensor (203).

4. The label peeling device of the packaging labeling machine according to claim 2, characterized in that, The mounting plate (100) has two sliding holes (101) on its front side. The support shaft (102) is slidably disposed in the corresponding sliding hole (101), and the connecting block (103) is located in the corresponding sliding hole (101).

5. The label peeling device of the packaging labeling machine according to claim 2, characterized in that, A positioning hole (108) is provided on the inner right side of the rectangular hole. A positioning rod (109) is fixedly connected between the top inner wall and the bottom inner wall of the positioning hole (108). The pointer (110) slides and is sleeved on the corresponding positioning rod (109) through its own mounting hole.

6. The label peeling device of the packaging labeling machine according to claim 3, characterized in that, The mounting plate (100) has a first support base and a second support base fixedly installed on its front side. The top of the first support base is fixedly connected to the bottom of the pressure sensor (203), the bottom of the second support base is fixedly connected to the top of the electric telescopic rod (204), and the top of the second support base is fixedly connected to the bottom of the PLC controller (205).

7. The label peeling device of the packaging labeling machine according to claim 1, characterized in that, The mounting plate (100) has a connecting seat fixedly connected to its rear top and rear bottom, and the connecting seat has two bolt holes on its top.

Images