Paper breaking structure and bubble pressing machine comprising same

Abstract

The utility model discloses a paper breaking structure and a bubble pressing machine comprising the same, the paper breaking structure comprises a conveying and clamping device, an upper bubble pressing roller, a lower bubble pressing roller, a first driving device and a second driving device, the conveying and clamping device can clamp paper materials and convey the paper materials in the downstream direction; the upper bubble pressing roller and the lower bubble pressing roller can be used for carrying out impressing forming on paper materials and conveying the paper materials in the downstream direction, and the upper bubble pressing roller is located in the downstream direction of the conveying and clamping device. According to the paper breaking structure and the bubble pressing machine, a cutter does not need to be adopted for paper breaking operation of paper, harm of the cutter to people does not need to be considered in the installation, maintenance and adjustment process, the safety coefficient is greatly improved, in addition, the conveying clamping device can be driven by one driving component, and the paper breaking operation is convenient. The upper bubble pressing roller and the lower bubble pressing roller can be driven by the other driving component, and compared with an existing paper pad machine for producing the wrinkled V-shaped buffer paper, no extra power source is added.

Description

Technical Field

[0001] The utility model relates to a paper breaking structure and a bubble pressing machine comprising the same. Background Art

[0002] In the existing express logistics transportation, in order to protect the transported items, the items will be well protected, such as earthquake and collision protection, and the items in the packaging box will also be protected. At present, the items are generally supported by stuffing air cushions, bubble bags or paper pads in the packaging box to achieve the purpose of protection.

[0003] Take paper pads as an example. Generally, they can be produced by equipment. Bubble paper is one of the protective paper pads. Bubble paper is produced by bubble pressing machines. The working principle of bubble pressing machines is to emboss the paper material through a pair of concave and convex rollers, so that the surface of the formed paper material presents uneven ridges and pits. When the bubble paper is wrapped around the object, the three-dimensional shape formed by the ridges and pits can play a protective, shock-resistant and cushioning role for the object.

[0004] When operators use bubble presses to produce bubble paper, they need to segment it. Generally, a cutter is set outside the bubble press to cut the bubble paper to meet the segmentation needs. Some bubble presses set the cutter inside the equipment to avoid accidental injuries to operators and improve safety. However, due to the presence of the cutter, whether it is outside or inside the equipment, there is always a risk of injury during installation, maintenance, adjustment, etc., and safety needs to be improved.

[0005] There are also designs in existing paper pad machines that do not cut paper pads (non-bubble paper) by a cutter. This type of paper pad machine is used to produce corrugated V-shaped buffer paper, such as the buffer pad disclosed in CN115716570A. In the paper pad machine that produces this type of corrugated V-shaped buffer paper, there are generally three groups of rollers, namely, group A rollers, group B rollers and group C rollers. Group A rollers, group B rollers and group C rollers are distributed in sequence from the inlet to the outlet direction of the paper pad machine, wherein group B rollers and group C rollers rotate synchronously and are driven to rotate by one driving mechanism, group A rollers are driven to rotate by another driving mechanism, and the rotation speeds of group B rollers and group C rollers are less than the rotation speed of group A rollers. The speed difference between the B group of rollers and the A group of rollers realizes the pleating of the paper material, and the C group of rollers is used to extrude, shape and discharge the pleated paper material. When the pleated V-shaped buffer paper needs to be pulled apart, the A group of rollers slows down or stops, and the pleated V-shaped buffer paper is pulled apart between the B group of rollers and the A group of rollers, that is, "A group of rollers + B group of rollers" realize the pleating of the paper material, and the C group of rollers realizes the pleating of the paper material. The paper pad machine is suitable for the production of pleated V-shaped buffer paper and cannot be directly used to produce bubble paper. Because the forming methods and styles of bubble paper and pleated V-shaped buffer paper are different, the paper pad machine cannot be directly transplanted to produce bubble paper. Utility Model Content

[0006] The purpose of the utility model is to provide a paper breaking structure and a bubble pressing machine comprising the same, so as to solve at least one of the above technical problems.

[0007] According to one aspect of the utility model, a paper breaking structure is provided, comprising a conveying and clamping device, an upper foaming roller, a lower foaming roller, a first driving device and a second driving device.

[0008] The first driving device drives the conveying and clamping device, which can clamp the paper material and convey the paper material to the downstream direction.

[0009] The second driving device drives the upper foam roller and the lower foam roller to rotate in opposite directions, and the upper foam roller and the lower foam roller can emboss the paper material and transport the paper material to the downstream direction.

[0010] The upper foam pressure roller is located in the downstream direction of the conveying and clamping device;

[0011] When the paper needs to be cut, the first drive device reduces the output speed or stops working and the conveying clamping device clamps the paper, the upper pressure foam roller and the lower pressure foam roller continue to convey the paper downstream, and the paper between the conveying clamping device and the upper pressure foam roller is pulled apart.

[0012] The paper cutting structure of the utility model is installed in the bubble pressing machine. Under the driving action of the first driving device, the conveying clamping device can clamp the paper material and convey the paper material to the upper bubble pressing roller and the lower bubble pressing roller in the downstream direction. Under the driving action of the second driving device, the upper bubble pressing roller and the lower bubble pressing roller can emboss the paper material to form bubble paper with an uneven surface, and at the same time convey the paper material to the downstream direction. When the paper material needs to be cut off, the first driving device stops working and the conveying clamping device clamps the paper material, and the second driving device continues to work, that is, the upper bubble pressing roller and the lower bubble pressing roller continue to convey the paper material to the downstream direction, so as to pull the paper material between the upper clamping roller and the upper bubble pressing roller off, and the paper material is pulled off. The paper material is sent out by the upper foam roller and the lower foam roller, and the subsequent paper material to be processed continues to be transported to the upper foam roller and the lower foam roller, and the upper foam roller and the lower foam roller continue to emboss and shape the new paper material until the next pulling and breaking operation. The paper breaking structure of the utility model does not need to use a cutter for the paper breaking operation of the paper material, and there is no need to consider the harm of the cutter to people during installation, maintenance or adjustment, which greatly improves the safety factor. In addition, the conveying and clamping device can be driven by a driving component, and the upper foam roller and the lower foam roller can be driven by another driving component. Compared with the existing paper padding machine for producing pleated V-shaped buffer paper, no additional power source is added.

[0013] In some embodiments, the conveying and clamping device includes an upper clamping roller and a lower clamping roller, and the first driving device drives the upper clamping roller and the lower clamping roller to rotate in opposite directions, clamping the paper material and conveying the paper material to the downstream direction, and the upper pressure foam roller is located in the downstream direction of the upper clamping roller. Therefore, under the action of the first driving device, the upper clamping roller and the lower clamping roller can play the role of clamping the paper material on the one hand, so that the paper material can be pulled apart by cooperating with the upper pressure foam roller and the lower pressure foam roller, and on the other hand, can play the role of conveying the paper material, and this effect can be achieved both during feeding and in conveying after pulling apart.

[0014] In some embodiments, the conveying and clamping device includes an upper clamping roller, a lower clamping roller, an upper clamping plate and a lower clamping plate. The first driving device drives the upper clamping roller and the lower clamping roller to rotate in opposite directions to convey the paper material in the direction of the upper pressure foam roller. The first driving device drives the upper clamping plate and the lower clamping plate to move closer to or farther from each other to clamp and release the paper material. Thus, under the action of the first driving device, the upper clamping roller and the lower clamping roller can play the role of conveying the paper material, which can play this role both during feeding and in conveying after breaking the paper material; the upper clamping plate and the lower clamping plate can clamp the paper material under the action of the first driving device. When breaking the paper material, the upper clamping plate and the lower clamping plate clamp the paper material, and at the same time, the upper clamping roller and the lower clamping roller lose power, while the upper pressure foam roller and the lower pressure foam roller continue to convey, so as to realize the process of breaking the paper material.

[0015] In some embodiments, the conveying and clamping device includes two sets of synchronous belt transmission components arranged in an upper and lower manner, the upper synchronous belt transmission component includes two upper clamping rollers and a synchronous belt, and the synchronous belt is sleeved on the two upper clamping rollers arranged at intervals, and the lower synchronous belt transmission component includes two lower clamping rollers and a synchronous belt, and the synchronous belt is sleeved on the two lower clamping rollers arranged at intervals.

[0016] The first driving device drives the upper clamping roller or the lower clamping roller to rotate, so that the two synchronous belts transmit in opposite directions. The two sets of synchronous belts are intermittently arranged to clamp the paper material and convey the paper material in the direction of the upper foam roller.

[0017] Thus, the first driving device drives the upper clamping roller and the lower clamping roller to rotate. On the one hand, the two synchronous belts can play the role of clamping the paper material, so that the paper material can be broken by cooperating with the upper foam roller and the lower foam roller. On the other hand, they can play the role of transmitting the paper material, which can be achieved during feeding and transportation after breaking.

[0018] In some embodiments, a paper material detection unit for detecting whether paper material exists is also included, and the paper material detection unit is located between the conveying clamping device and the upper pressure foam roller. Thus, the paper material detection unit can be used to detect whether paper material exists between the conveying clamping device and the upper pressure foam roller. When the paper material detection unit detects the presence of paper material, it indicates that the paper material starts to be conveyed. After the paper material detection unit detects the paper material, the controller of the bubble press can start to calculate the paper feeding length. When the paper feeding length reaches the set value (the set value can be the spacing length of adjacent easy-tear lines on the paper material), the paper breaking operation is performed, and the position of each paper breaking is upstream of the detection position of the paper material detection unit (for example, the spacing position of adjacent easy-tear lines on the paper material is 30cm, and the paper material detection unit detects that the paper material breaks when it has traveled 28cm). In this way, it is ensured that each time the paper material is broken and the paper material conveying is started again, the paper material detection unit can re-detect that the paper pad starts to be conveyed.

[0019] In some embodiments, the paper material detection unit may include an upper guide plate, a lower guide plate, and a photoelectric sensor, wherein the upper guide plate and the lower guide plate are arranged vertically, and the area between the upper guide plate and the lower guide plate is for paper material to pass through, and the photoelectric sensor is used to detect whether paper material passes between the upper guide plate and the lower guide plate. Thus, the photoelectric sensor can detect whether paper material passes between the upper guide plate and the lower guide plate.

[0020] In some embodiments, the paper material detection unit may further include a photoelectric encoder and a controller. The photoelectric encoder is used to detect the number of rotations of the upper clamping roller or the lower clamping roller. The photoelectric encoder is electrically connected to the controller, the photoelectric sensor is electrically connected to the controller, and the controller is electrically connected to the first drive device. The controller can calculate the length of the paper material passing between the upper clamping roller and the lower clamping roller. Thus, when the photoelectric sensor detects that there is paper material between the upper guide plate and the lower guide plate, it indicates that the paper material begins to be transported. The photoelectric encoder can detect the number of rotations of the upper clamping roller or the lower clamping roller in real time and send the detected signal to the controller. The controller can calculate the length of the paper material passing between the upper clamping roller and the lower clamping roller in real time according to the rotation speed of the upper clamping roller or the lower clamping roller, that is, the controller can calculate the paper feeding length in real time. When the paper feeding length reaches the set value (that is, the spacing length between adjacent tear lines on the paper), the controller controls the first drive device to stop working (while the second drive device continues to work). At this time, the paper breaking operation is performed, and each The position of the second paper break is upstream of the detection position of the photoelectric sensor. For example, the spacing length of adjacent easy-tear lines on the paper is 30 cm. The controller calculates that when the paper passes the detection position of the photoelectric sensor by 28 cm, the first drive device stops working, and the second drive device continues to work, thereby breaking the paper. In this way, it is ensured that when the first drive device restarts to convey the paper after each paper break, the starting end of the paper is located upstream of the detection position of the photoelectric sensor, so that the photoelectric sensor can re-detect the start of paper conveyance each time, and the position of breaking the paper is generally controlled to be 0 to 4 cm (excluding 0) before the detection position.

[0021] In some embodiments, a paper jam detection mechanism may be further included, and the paper jam detection mechanism is located between the conveying clamping device and the upper pressure foam roller. Therefore, when the paper material is broken and the conveying clamping device is conveying the paper material again, there may be a paper jam or paper jam. The paper jam detection mechanism can detect whether there is a paper jam between the conveying clamping device and the upper pressure foam roller, so that the operator can respond in time.

[0022] In some embodiments, the paper jam detection mechanism may include an upper plate, a lower plate, a reset mechanism and a detection switch, the upper plate and the lower plate are arranged up and down, the area between the upper plate and the lower plate is for paper to pass through, a flippable detection plate is provided on the upper plate near the conveying clamping device, the reset mechanism is provided on the detection plate, and the detection switch is provided on the side of the detection plate.

[0023] When paper jam occurs between the detection plate and the lower plate, the detection plate flips around the upper plate and the detection plate can trigger the detection switch. After the detection switch is triggered, the conveying clamping device stops moving.

[0024] When the paper jam between the detection plate and the lower plate is removed, the reset mechanism drives the detection plate to reset.

[0025] Therefore, when paper material is blocked between the upper plate and the lower plate, the blocked paper material will lift up the detection plate, and the detection plate will flip around the upper plate. When the paper material is blocked to a certain extent, the detection plate will trigger the detection switch. After the detection switch is triggered, the controller of the bubble press can control the first drive device to stop working, that is, control the conveying clamping device to stop moving, thereby avoiding damage to the first drive device. When the operator finds that the first drive device stops working, the blocked paper material can be removed in time to avoid the subsequent accumulation of a large amount of paper material. The detection of the degree of paper material blockage can be set. As long as the paper material is blocked, the detection switch will be triggered, thereby ensuring that a large amount of paper material will not accumulate between the upper plate and the lower plate.

[0026] In some embodiments, the reset mechanism may include a limit rod and a reset spring, wherein the limit rod is disposed on the detection plate, the reset spring is sleeved on the limit rod, one end of the reset spring abuts against the detection plate, and the other end of the reset spring is fixed.

[0027] When the paper jam between the detection plate and the lower plate is removed, the reset spring drives the detection plate to reset.

[0028] Therefore, when paper material is blocked between the upper plate and the lower plate, the blocked paper material will lift up the detection plate, and the detection plate drives the limit rod to move synchronously, and the reset spring on the limit rod is compressed. When the paper material blocked between the upper plate and the lower plate is removed, the detection plate is automatically reset under the restoring force of the reset spring.

[0029] In some embodiments, the detection switch may be a proximity switch or a contact switch. Thus, when the paper material is blocked to a certain extent, the detection plate may trigger the proximity switch or the contact switch.

[0030] In some embodiments, the upper plate and the detection plate can be integrally formed and made of an elastic sheet. Thus, when paper material is blocked between the upper plate and the lower plate, the blocked paper material will lift up the detection plate made of the elastic sheet, and when the paper material blocked between the upper plate and the lower plate is removed, the detection plate made of the elastic sheet can be quickly reset.

[0031] According to another aspect of the utility model, a bubble pressing machine is provided, comprising a bracket and the aforementioned paper breaking structure, wherein the conveying clamping device, the upper bubble pressing roller and the lower bubble pressing roller are all arranged on the bracket and rotatably connected to the bracket.

[0032] The bubble pressing machine of the utility model does not need to use a cutter for the paper cutting operation of the paper material, and no matter in the process of installation, maintenance or adjustment, there is no need to consider the harm of the cutter to people, which greatly improves the safety factor. In addition, the conveying clamping device can be driven by a driving component, and the upper bubble pressing roller and the lower bubble pressing roller can be driven by another driving component. Compared with the existing paper padding machine for producing pleated V-shaped buffer paper, no additional power source is added. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural schematic diagram of a paper breaking structure according to an embodiment of the utility model;

[0034] Figure 2 for Figure 1 A schematic diagram of the structure of the upper clamping roller, the lower clamping roller, the upper foaming roller, the lower foaming roller, the paper material detection part, and the paper jam detection mechanism in the paper breaking structure shown;

[0035] Figure 3 for Figure 2 The structure shown is a schematic diagram of the structure along direction A. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0038] Figures 1 to 3 The structure of a paper breaking structure according to an embodiment of the utility model is schematically shown.

[0039] refer to Figures 1 to 3 , a paper breaking structure includes a conveying clamping device, an upper pressure foam roller 3, a lower pressure foam roller 4, a first driving device 5 and a second driving device 6. In addition, the paper breaking structure may also include a paper material detection part, a paper jam detection mechanism and a bracket.

[0040] refer to Figure 1 The bracket includes a left bracket 91 and a right bracket 92 arranged longitudinally.

[0041] refer to Figure 1 and Figure 2 The conveying clamping device in this embodiment includes an upper clamping roller 1 and a lower clamping roller 2. The first driving device 5 can drive the upper clamping roller 1 and the lower clamping roller 2 to rotate in opposite directions. The first driving device 5 can be a motor. The upper clamping roller 1 and the lower clamping roller 2 are arranged up and down. The upper clamping roller 1 and the lower clamping roller 2 can clamp the paper material and convey the paper material to the downstream direction. Specifically, the two ends of the upper clamping roller 1 are respectively installed on the left bracket 91 and the right bracket 92 through a bearing, and the upper clamping roller 1 can rotate on the bracket. The two ends of the lower clamping roller 2 are respectively installed on the left bracket 91 and the right bracket 92 through a bearing, and the upper clamping roller 1 can rotate on the bracket, and the lower clamping roller 2 can rotate on the bracket.

[0042] refer to Figure 1The rotating shaft of the first driving device 5 is installed on the right bracket 92 through a bearing, a driving wheel 51 is installed on the rotating shaft of the first driving device 5, a transmission belt 52 is installed on the driving wheel 51, a driven wheel 11 is installed on one end of the upper clamping roller 1, the driving wheel 51 is connected to the driven wheel 11 through the transmission belt 52, an upper gear (not shown) is installed on the other end of the upper clamping roller 1, and a lower gear (not shown) is installed on the end of the lower clamping roller 2. The upper clamping roller 1 and the lower clamping roller 2 can rotate in opposite directions through the meshing upper gear and the lower gear. When the first driving device 5 is working, the first driving device 5 drives the upper clamping roller 1 to rotate through the "driving wheel 51-transmission belt 52-driven wheel 11", and the upper clamping roller 1 drives the lower clamping roller 2 to rotate synchronously through the meshing upper gear and the lower gear. The rotation directions of the upper clamping roller 1 and the lower clamping roller 2 are opposite, so as to clamp and convey the paper.

[0043] In some embodiments (not shown), the conveying clamping device includes an upper clamping roller 1, a lower clamping roller 2, an upper clamping plate and a lower clamping plate. The installation method of the upper clamping roller 1 and the lower clamping roller 2 is the same as that of the above-mentioned embodiments. The first driving device drives the upper clamping roller 1 and the lower clamping roller 2 to rotate in opposite directions, which is the same as the above-mentioned embodiments, but the first driving device 5 does not have the function of locking the upper clamping roller 1 and the lower clamping roller 2, that is, when the first driving device 5 is not driven, the upper clamping roller 1 and the lower clamping roller 2 can rotate freely. In this embodiment, compared with the above-mentioned embodiment, there are an upper clamping plate and a lower clamping plate, and a driving member included in the first driving device 5 for driving the upper clamping plate and the lower clamping plate to move. The upper clamping plate and the lower clamping plate are located in the transmission area between the upper clamping roller 1 and the upper foaming roller 3, and the upper clamping plate and the lower clamping plate are vertically slidably installed on the left bracket 91 and the right bracket 92 through a slideway (not shown), or any one of the upper clamping plate and the lower clamping plate is slidably installed on the left bracket 91 and the right bracket 92. The driving member can be a cylinder or a hydraulic cylinder, and the piston rod of the cylinder or the hydraulic cylinder drives the upper clamping plate and / or the lower clamping plate to slide, so that the upper clamping plate and the lower clamping plate can be close to or away from each other. When they are close to each other, they can clamp the paper material, and when they are away from each other, they release the paper material, and the paper material can be normally transported. Of course, the driving member can also be a motor, a gear rack, such as a rack fixedly installed on the upper clamping plate and / or the lower clamping plate, and the gear is installed on the output shaft of the motor, and the gear is meshed with the rack, so that the motor can drive the upper clamping plate and / or the lower clamping plate to move. The difference from the above-mentioned embodiment is that the conveying and clamping functions are separated and act independently.

[0044] In some embodiments (not shown), the conveying and clamping device includes two groups of synchronous belt transmission components arranged up and down, the upper synchronous belt transmission component includes two upper clamping rollers 1 and a synchronous belt, and the synchronous belt is sleeved on the two upper clamping rollers 1 arranged at intervals, and the lower synchronous belt transmission component includes two lower clamping rollers 2 and a synchronous belt, and the synchronous belt is sleeved on the two lower clamping rollers 2 arranged at intervals. The two upper clamping rollers 1 are arranged at intervals on the left bracket 91 and the right bracket 92, and the installation method is the same as the first embodiment, and the two lower clamping rollers 2 are arranged at intervals on the left bracket 91 and the right bracket 92, and the installation method is also the same as the first embodiment. The two synchronous belts are respectively sleeved and installed on the two upper clamping rollers 1 and the two lower clamping rollers 2, so that the first driving device 5 drives the upper clamping rollers 1 and the lower clamping rollers 2 to rotate synchronously and in opposite directions, and the two synchronous belts follow the upper clamping rollers 1 or the lower clamping rollers 2 to move, and the two groups of synchronous belts are intermittently arranged to clamp the paper material and convey the paper material to the direction of the upper pressure foam roller 3. The only difference between this embodiment and the first embodiment is that one acts on the paper material by a roller and the other by a synchronous belt.

[0045] refer to Figure 1 The second driving device 6 can drive the upper foam roller 3 and the lower foam roller 4 to rotate in opposite directions. The second driving device 6 can be a motor. The upper foam roller 3 and the lower foam roller 4 are arranged up and down. The upper foam roller 3 and the lower foam roller 4 with opposite rotation directions can emboss the paper material so that the surface of the formed paper material presents uneven protrusions and pits, thereby forming bubble paper. The two ends of the upper foam roller 3 are respectively installed on the left bracket 91 and the right bracket 92 through a bearing, and the two ends of the lower foam roller 4 are respectively installed on the left bracket 91 and the right bracket 92 through a bearing. The second driving device 6 can also drive the upper foam roller 3 and the lower foam roller 4 to rotate through the "driving wheel-transmission belt-driven wheel" mode, and the upper foam roller 3 and the lower foam roller 4 can also rotate in opposite directions through two meshing gears. In this way, the second driving device 6 drives the upper foam roller to rotate through the "driving wheel-transmission belt-driven wheel", and the upper foam roller drives the lower foam roller 4 to rotate synchronously through the two meshing gears. The rotation directions of the upper foam roller 3 and the lower foam roller 4 are opposite, so as to realize the embossing of the paper material and continue to convey it in the downstream direction.

[0046] The upper pressure foam roller 3 and the lower pressure foam roller 4 are located in the downstream direction of the conveying clamping device. When the paper needs to be cut, the first driving device 5 acts to make the conveying clamping device clamp the paper. The ways of clamping the paper include the three ways mentioned above. The upper pressure foam roller 3 and the lower pressure foam roller 4 continue to convey the paper to the downstream direction, and the paper between the conveying clamping devices is pulled apart.

[0047] The paper material detection part is located between the conveying clamping device and the upper pressure foam roller 3, and is used to detect whether there is paper between the conveying clamping device and the upper pressure foam roller 3; the specific structure of the paper material detection part can be: Figure 2 and Figure 3 The paper material detection part includes an upper guide plate 71, a lower guide plate 72, a photoelectric sensor 73, a photoelectric encoder (not shown) and a controller (not shown). The upper guide plate 71 and the lower guide plate 72 are distributed up and down. The upper guide plate 71 and the lower guide plate 72 are located between the upper clamping roller 1 and the upper foam roller 3. The area between the upper guide plate 71 and the lower guide plate 72 is for paper material to pass through. The photoelectric sensor 73 can be a corresponding photoelectric sensor. The transmitting end of the photoelectric sensor 73 is installed on the upper guide plate 71, and the receiving end of the photoelectric sensor 73 is installed on the lower guide plate 72. The upper guide plate 71 is formed with a through hole 711 for the transmitting end and the receiving end of the photoelectric sensor 73 to be opposite to each other. The lower guide plate 72 is also formed with a through hole 711 for the photoelectric sensor 73 to be opposite to each other. The transmitting end and the receiving end of the sensor 73 are through holes facing each other, and the photoelectric encoder is installed on the upper clamping roller 1 (or the lower clamping roller 2). The photoelectric encoder can detect the number of rotations of the upper clamping roller 1 in real time. The photoelectric sensor 73 can be used to detect whether there is paper passing between the upper guide plate 71 and the lower guide plate 72. The photoelectric sensor 73 is connected to the controller through a wiring harness, and the photoelectric encoder is connected to the controller through a wiring harness. The photoelectric sensor 73 can send the detected signal to the controller for control processing. The photoelectric encoder sends the detected signal to the controller for control processing. The controller is connected to the first drive device 5 through a wiring harness. The controller can control the change of the operating state of the first drive device 5. The controller can The number of rotations of the upper clamping roller 1 detected by the photoelectric encoder and the circumference of the upper clamping roller 1 are used to calculate the length of the paper passing through the conveying clamping device. The controller can directly use the controller part of the bubble pressing machine itself (such as a microcontroller or a single-chip microcomputer); in this embodiment, the detection mode of whether there is paper can be: easy-tear lines are set at equal intervals on the paper, and the photoelectric sensor 73 between the upper clamping roller 1 and the upper bubble pressing roller 3 is used to detect whether there is paper. When the photoelectric sensor 73 detects that there is paper between the upper guide plate 71 and the lower guide plate 72, it indicates that the paper starts to be conveyed. At this time, the controller starts to calculate the paper feeding length. When the paper feeding length reaches the set value, the paper breaking operation is performed (the first drive device 5 stops the transmission , and the second drive device 6 continues to work), and the position of each paper break is upstream of the detection position of the photoelectric sensor 73. For example, the spacing length of adjacent easy-tear lines on the paper is 30 cm. The controller calculates that when the paper passes the detection position of the photoelectric sensor 73 by 28 cm, the first drive device 5 stops transmitting, and the first drive component 5 continues to work, thereby breaking the paper. In this way, it is ensured that when the first drive device 5 re-transmits the paper after each paper break, the starting end of the paper is located upstream of the detection position of the photoelectric sensor 73, so that the photoelectric sensor 73 can re-detect the start of paper transportation each time, and the position of breaking the paper is generally controlled at 0 to 4 cm (excluding 0) before the detection position.

[0048] The paper jam detection mechanism is located between the conveying clamping device and the upper pressure foam roller 3. The paper jam detection mechanism is used to detect whether there is a paper jam between the conveying clamping device and the upper pressure foam roller 3, because when the paper material is pulled apart and then conveyed, there may be a paper jam or paper jam. The specific structure of the paper jam detection mechanism can be: Figure 2 and Figure 3The paper jam detection mechanism includes an upper plate 81, a lower plate 82, a reset mechanism and a detection switch 83. The upper plate 81 and the lower plate 82 are distributed up and down. The upper plate 81 and the lower plate 82 are located between the upper clamping roller 1 and the upper foam roller 3. The upper plate 81 and the upper guide plate 71 can be integrally formed to form a plate body. The lower plate 82 and the lower guide plate 72 can be integrally formed to form a plate body. The area between the upper plate 81 and the lower plate 82 is for paper to pass through. The upper plate 81 is close to the upstream direction (the upper clamping roller 1 and the lower clamping roller 3). The upper plate 81 and the detection plate 811 can be made of elastic sheets. The detection plate 811 and the upper plate 81 are arranged in a bent shape. This arrangement of the detection plate 811 can guide the paper material to enter the channel between the upper plate 81 and the lower plate 82, and can also enable the detection plate 811 to flexibly sense the blockage of the paper material. The reset mechanism includes a limit rod 84 and a reset spring 85. One end of the limit rod 84 is fixed to the detection plate 811. 11, the return spring 85 is sleeved on the limit rod 84, the other end of the limit rod 84 is inserted in a mounting bracket 86, the mounting bracket 86 is installed on the bracket, one end of the return spring 85 is against the detection plate 811, and the other end of the return spring 85 is pressed against the mounting bracket 86. The detection switch 83 is installed on the left bracket 91 of the bracket, and the detection switch 83 is located on the side of the detection plate 811. In this embodiment, the number of the limit rod 84, the return spring 85 and the mounting bracket 86 is two, the end of one limit rod 84 is inserted in one mounting bracket 86, and the end of the other limit rod 84 is inserted in the other mounting bracket 86. The two mounting brackets 86 are respectively installed on the left bracket 91 and the right bracket 92 of the bracket. The detection switch 83 can be a proximity switch or a contact switch. Specifically, the detection switch 83 can be a micro switch. The detection switch 83 can send the detected signal to the controller of the bubble pressing machine itself for control processing, and the controller of the bubble pressing machine can control the working state of the first driving device 5;When paper jam occurs between the detection plate 811 and the lower plate 82, the jammed paper will lift up the detection plate 811, and the detection plate 811 will flip around the upper plate 81. When the paper jam reaches a certain degree, the detection plate 811 triggers the detection switch 83. After the detection switch 83 is triggered, the first drive device 5 stops working and the conveying clamping device stops transmitting, thereby avoiding damage to the first drive device 5. When the operator finds that the work stops, the jammed paper can be removed in time to avoid the subsequent accumulation of a large amount of paper. The detection of the degree of paper jam can be set. As long as the paper is jammed, The detection switch 83 will be triggered, thereby ensuring that a large amount of paper will not be accumulated between the upper plate 81 and the lower plate 82. In addition, when paper is blocked between the upper plate 81 and the lower plate 82, the blocked paper will lift the detection plate 811, and the detection plate 811 will drive the limit rod 84 to move synchronously. The reset spring 85 on the limit rod 84 is compressed. When the paper blocked between the upper plate 81 and the lower plate 82 is removed, the detection plate 811 can be automatically reset under the restoring force of the reset spring 85. In addition, the detection plate 811 made of an elastic sheet can also be quickly reset under its own restoring force. ;

[0049] refer to Figure 3The paper cutting structure of the utility model is installed in the bubble pressing machine. Taking the first embodiment as an example, under the driving action of the first driving device 5, in the first embodiment, the upper clamping roller 1 and the lower clamping roller 2 can clamp the paper material and convey the paper material to the upper bubble pressing roller 3 and the lower bubble pressing roller 4 in the downstream direction. Under the driving action of the second driving device 6, the upper bubble pressing roller 3 and the lower bubble pressing roller 4 can emboss the paper material to form bubble paper with an uneven surface, and at the same time convey the paper material to the downstream direction. When the paper material needs to be cut off, the working state of the first driving device 5 changes and the upper clamping roller 1 and the lower clamping roller 2 keep clamping the paper material, and the second driving device 6 continues to work, that is, the upper bubble pressing roller 3 and the lower bubble pressing roller 4 continue to convey the paper material to the downstream direction, thereby cutting the paper material between the upper clamping roller 1 and the upper bubble pressing roller 2. The paper is pulled apart, and the broken paper is sent out by the upper foam roller 3 and the lower foam roller 4, and the subsequent paper to be processed continues to be sent to the upper foam roller 3 and the lower foam roller 4, and the upper foam roller 3 and the lower foam roller 4 continue to perform embossing and forming processing on the new paper, waiting for the next pulling-off operation; in addition, the photoelectric sensor 73 can detect whether there is paper between the upper clamping roller 1 and the upper foam roller 3, ensuring that the starting end of the paper is located at the photoelectric sensor 7 when the first driving device 5 restarts to convey the paper after each paper break. 3's detection position upstream direction, so that the photoelectric sensor 73 can re-detect the start of paper conveying each time, when there is a paper jam between the detection plate 811 and the lower plate 82, the detection plate 811 will trigger the detection switch 83, after the detection switch 83 is triggered, the upper clamping roller 1 and the lower clamping roller 2 stop rotating, so as to avoid damage to the first drive device 5, and the operator can promptly remove the jammed paper when it stops working, so as to avoid the subsequent accumulation of a large amount of paper; the paper breaking structure of the utility model does not need to use a tool for the paper breaking operation of the paper, whether in installation, maintenance or adjustment, there is no need to consider the harm of the tool to people, which greatly improves the safety factor, in addition, the upper clamping roller 1 and the lower clamping roller 2 can be driven by a driving component (the first driving device 5), and the upper foam roller 3 and the lower foam roller 4 can be driven by another driving component (the second driving device 6), compared with the existing paper pad machine for producing pleated V-shaped buffer paper, no additional power source is added.

[0050] A bubble pressing machine comprises a bracket and a paper breaking structure, wherein a conveying clamping device, an upper bubble pressing roller 3 and a lower bubble pressing roller 4 are all mounted on the bracket, and all or part of the conveying clamping device, the upper bubble pressing roller 3 and the lower bubble pressing roller 4 can rotate on the bracket, the conveying clamping device can clamp paper and convey the paper to a downstream direction (towards the upper bubble pressing roller 3 and the lower bubble pressing roller 4), the upper bubble pressing roller 3 and the lower bubble pressing roller 4 can emboss and shape the paper, so that the surface of the shaped paper presents uneven protrusions and pits, thereby forming bubble paper, and the bubble paper is conveyed to a downstream direction at the same time.

[0051] The bubble pressing machine of the utility model does not need to use a cutter for the paper cutting operation of the paper material. No matter in the installation, maintenance or adjustment, there is no need to consider the harm of the cutter to people, which greatly improves the safety factor. In addition, the conveying clamping device can be driven by a driving component (first driving device 5), and the upper bubble pressing roller 3 and the lower bubble pressing roller 4 can be driven by another driving component (second driving device 6). Compared with the existing paper padding machine for producing pleated V-shaped buffer paper, no additional power source is added.

[0052] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Paper breaking structure, characterized in that: It includes a conveying and clamping device, an upper foam pressure roller, a lower foam pressure roller, a first driving device and a second driving device. The first driving device drives the conveying and clamping device, and the conveying and clamping device can clamp the paper material and convey the paper material to the downstream direction. The second driving device drives the upper foam roller and the lower foam roller to rotate in opposite directions, and the upper foam roller and the lower foam roller can emboss and shape the paper material and transport the paper material to the downstream direction. The upper foam pressure roller is located in the downstream direction of the conveying and clamping device; When the paper needs to be cut, the first drive device reduces the output speed or stops working and the conveying clamping device clamps the paper, the upper pressure foam roller and the lower pressure foam roller continue to convey the paper downstream, and the paper between the conveying clamping device and the upper pressure foam roller is pulled apart.

2. The paper breaking structure according to claim 1, characterized in that: The conveying clamping device includes an upper clamping roller and a lower clamping roller. The first driving device drives the upper clamping roller and the lower clamping roller to rotate in opposite directions to clamp the paper and convey the paper to the downstream direction. The upper foaming roller is located in the downstream direction of the upper clamping roller.

3. The paper breaking structure according to claim 1, characterized in that: The conveying and clamping device includes an upper clamping roller, a lower clamping roller, an upper clamping plate and a lower clamping plate. The first driving device drives the upper clamping roller and the lower clamping roller to rotate in opposite directions to convey the paper in the direction of the upper foam roller. The first driving device drives the upper clamping plate and the lower clamping plate to move closer to or away from each other to clamp and release the paper.

4. The paper breaking structure according to claim 1, characterized in that: The conveying clamping device comprises two sets of synchronous belt transmission components arranged up and down, the upper synchronous belt transmission component comprises two upper clamping rollers and a synchronous belt, the synchronous belt is sleeved on the two upper clamping rollers arranged at intervals, and the lower synchronous belt transmission component comprises two lower clamping rollers and a synchronous belt, the synchronous belt is sleeved on the two lower clamping rollers arranged at intervals, The first driving device drives the upper clamping roller or the lower clamping roller to rotate, so that the two synchronous belts transmit in opposite directions. The two sets of synchronous belts are intermittently arranged to clamp the paper material and convey the paper material in the direction of the upper foam roller.

5. The paper breaking structure according to any one of claims 2 to 4, characterized in that: It also includes a paper material detection part for detecting whether the paper material exists, and the paper material detection part is located between the conveying clamping device and the upper foaming roller.

6. The paper breaking structure according to claim 5, characterized in that: The paper material detection unit comprises an upper guide plate, a lower guide plate and a photoelectric sensor. The upper guide plate and the lower guide plate are arranged up and down, and the area between the upper guide plate is for paper material to pass through. The photoelectric sensor is used to detect whether there is paper material passing between the upper guide plate and the lower guide plate.

7. The paper breaking structure according to claim 6, characterized in that: The paper material detection unit also includes a photoelectric encoder and a controller. The photoelectric encoder is used to detect the number of rotations of the upper clamping roller or the lower clamping roller. The photoelectric encoder is electrically connected to the controller, the photoelectric sensor is electrically connected to the controller, and the controller is electrically connected to the first drive device. The controller can calculate the length of the paper material passing between the upper clamping roller and the lower clamping roller.

8. The paper breaking structure according to any one of claims 1 to 4, characterized in that: It also includes a paper jam detection mechanism, which is located between the conveying clamping device and the upper foam pressure roller.

9. The paper breaking structure according to claim 8, characterized in that: The paper jam detection mechanism comprises an upper plate, a lower plate, a reset mechanism and a detection switch. The upper plate and the lower plate are arranged up and down. The area between the upper plate and the lower plate is for paper to pass through. A flippable detection plate is provided on the upper plate near the conveying clamping device. The reset mechanism is provided on the detection plate. The detection switch is provided on the side of the detection plate. When paper jam occurs between the detection plate and the lower plate, the detection plate flips around the upper plate and the detection plate can trigger the detection switch. After the detection switch is triggered, the conveying clamping device stops moving. When the paper jam between the detection plate and the lower plate is removed, the reset mechanism drives the detection plate to reset.

10. The paper breaking structure according to claim 9, characterized in that: The reset mechanism includes a limit rod and a reset spring. The limit rod is arranged on the detection plate. The reset spring is sleeved on the limit rod. One end of the reset spring abuts against the detection plate, and the other end of the reset spring is fixed. When the paper jam between the detection plate and the lower plate is removed, the reset spring drives the detection plate to reset.

11. The paper breaking structure according to claim 9, characterized in that: The detection switch is a proximity switch or a contact switch.

12. The paper breaking structure according to claim 9, characterized in that: The upper plate and the detection plate are integrally formed and made of an elastic sheet.

13. A bubble pressing machine, characterized in that: The invention comprises a bracket and the paper breaking structure according to any one of claims 1 to 12, wherein the conveying clamping device, the upper foam pressure roller and the lower foam pressure roller are all arranged on the bracket and are rotatably connected to the bracket.

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