Bubble wrap machine

Abstract

A bubble wrap machine, comprising a clamping mechanism and a bubble embossing mechanism. An upper clamping surface and a lower clamping surface of the clamping mechanism that are used for clamping a paper material can move towards or away from each other. The bubble embossing mechanism is located downstream of the clamping mechanism. When the paper material needs to be severed, the clamping mechanism clamps the paper material and stops conveying the paper material, while the bubble embossing mechanism continues to convey the paper material downstream, so that the paper material between the clamping mechanism and the bubble embossing mechanism is pulled and torn apart.

Description

A bubble pressing machine Technical Field

[0001] The invention relates to the field of protective packaging material manufacturing equipment, in particular to a bubble pressing machine. Background Art

[0002] In existing express logistics, to protect the transported items, they are protected against shock and collision, and the items inside the packaging are also protected. Currently, this is usually achieved by inserting air cushions, bubble bags, or paper pads inside the packaging to support the items.

[0003] For example, paper padding can generally be produced using equipment. Bubble wrap is one type of protective paper padding, and it's produced using a bubble press. The bubble press works by embossing the paper using a pair of rollers with matching convex and concave shapes, creating a pattern of uneven bumps and indentations on the surface. When the bubble wrap is wrapped around an item, the three-dimensional shape created by these bumps and indentations provides protection, shock absorption, and cushioning.

[0004] Since bumps and depressions are formed on the surface of the paper during processing, the paper is easily broken during processing, resulting in reduced stability of the bumps and depressions, thereby reducing the protection, shock resistance and buffering effects; some bubble presses are designed with a structure at the entrance to reduce the width of the paper entering the equipment to reduce the probability of the paper being torn. The structure includes two parallel mounting rods arranged at the entrance of the equipment, and each mounting rod is provided with a plurality of rings. The rings on the two mounting rods overlap in projection along the length direction parallel to the mounting rods. The paper passes between the rings on the two mounting rods and then enters the bubble press. When the paper passes between the two mounting rods, its width direction will form a wave shape due to the action of the rings, thereby shortening the size of the paper in the width direction, thereby reducing the probability of the subsequent paper being torn, but due to The circular rings on the two mounting rods are staggered and their projections along the length direction parallel to the mounting rods overlap. When inserting paper through adjacent circular rings, the paper needs to be aligned and passed through each required circular ring, and the paper needs to be passed through the required circular rings on the two mounting rods little by little. This method, on the one hand, is time-consuming, resulting in a more difficult and inefficient paper threading process. On the other hand, it is easy to miss the circular rings, affecting the subsequent forming quality of the paper. Moreover, it is easy to cause a skewed feeding path of the paper, causing the subsequent input paper to deviate from the normal input path, which may cause paper jams. In addition, in actual use, the paper is often creased and torn at the circular rings or has a small deformation. When the width of the paper changes, the reduction effect of the circular rings on the paper is also unstable, resulting in an overall low yield rate.

[0005] Furthermore, bubble wrap production requires operators to segment the bubble wrap. This is typically accomplished by installing a cutter external to the machine to cut the bubble wrap. Some bubble wrap machines incorporate the cutter internally to prevent operator injury and improve safety. However, the presence of the cutter, whether external or internal, creates a risk of injury during installation, maintenance, and adjustment, raising the question of safety.

[0006] 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 feed port to the discharge direction of the paper pad machine, wherein group B rollers and group C rollers rotate synchronously and are driven to rotate by one drive mechanism, group A rollers are driven to rotate by another drive mechanism, and the rotation speed of group B rollers and group C rollers is 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 wrinkling processing of the paper material. The C group of rollers is used to extrude, shape and discharge the wrinkled paper material. When the wrinkled V-shaped buffer paper needs to be pulled apart, the A group of rollers slows down or stops, and the wrinkled 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 wrinkling forming of the paper material, and the C group of rollers realizes the squeezing, shaping and discharge of the wrinkled paper material. However, this paper pad machine is suitable for the production of wrinkled V-shaped buffer paper, and cannot be directly used to produce bubble paper, because bubble paper and wrinkled V-shaped buffer paper have different forming methods and styles, so the paper pad machine cannot be directly transplanted to produce bubble paper.

[0007] Therefore, how to overcome the above technical defects of the bubble wrap pressing machine for producing bubble wrap is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0008] The object of the present invention is to provide a bubble pressing machine to solve at least one of the above technical problems.

[0009] According to one aspect of the present invention, there is provided a bubble pressing machine, comprising:

[0010] a clamping mechanism for clamping the paper material and conveying the paper material downstream, wherein the upper clamping surface and the lower clamping surface of the clamping mechanism for clamping the paper material can move closer to or farther away from each other; and

[0011] A bubble pressing mechanism for embossing the paper material and conveying the paper material downstream, the bubble pressing mechanism being located downstream of the clamping mechanism;

[0012] When the paper needs to be cut, the clamping mechanism clamps the paper and stops conveying the paper, and the bubble pressing mechanism continues to convey the paper downstream, and the paper between the clamping mechanism and the bubble pressing mechanism is pulled apart.

[0013] The bubble pressing machine of the present invention has a clamping mechanism that can clamp paper materials and convey the paper materials to the bubble pressing mechanism in the downstream direction, the bubble pressing mechanism embosses the paper materials to form bubble paper with an uneven surface, and the bubble pressing mechanism continues to convey the formed bubble paper in the downstream direction at the same time. Since the upper clamping surface and the lower clamping surface of the clamping mechanism for clamping the paper materials can be close to or away from each other, when loading is required, the upper clamping surface and the lower clamping surface of the clamping mechanism are moved away from each other, and then the paper materials can be easily passed through the clamping mechanism. After loading is completed, the upper clamping surface and the lower clamping surface of the clamping mechanism are moved close to each other to clamp the paper materials. When the paper materials need to be cut off, the clamping mechanism stops conveying the paper materials and the clamping mechanism clamps the paper materials, and the bubble pressing mechanism continues to convey the paper materials in the downstream direction, thereby cutting the paper materials between the clamping mechanism and the bubble pressing mechanism. The paper is pulled apart, and the broken paper is sent out by the bubble pressing mechanism. The subsequent paper to be processed continues to be conveyed to the bubble pressing mechanism, and the bubble pressing mechanism continues to perform embossing and forming processing on the new paper until the next pulling-off operation. The bubble pressing machine of the present invention has simple and convenient loading of paper materials. There is no need to pass the paper materials between the required rings on the two mounting rods little by little, and it is not easy to miss the rings on the mounting rods. Moreover, no tool is required for the paper breaking operation. 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 clamping mechanism can be driven by one driving component, and the bubble pressing mechanism 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.

[0014] In some embodiments, a first driving component may be further included, wherein the clamping mechanism includes an upper clamping roller and a lower clamping roller rotating in opposite directions, the upper clamping roller and the lower clamping roller being capable of clamping the paper and conveying the paper downstream, and the first driving component driving the lower clamping roller toward or away from the upper clamping roller. Thus, the upper and lower clamping rollers rotating in opposite directions can clamp the paper and convey the paper to the downstream bubble pressing mechanism. When loading is required, the lower clamping roller is moved away from the upper clamping roller under the action of the first driving component, and the paper can then be easily passed between the upper and lower clamping rollers. After loading is completed, the lower clamping roller is moved toward the upper clamping roller under the action of the first driving component to clamp the paper. When the paper needs to be cut, the upper and lower clamping rollers stop rotating and clamp the paper, and the bubble pressing mechanism continues to convey the paper downstream, thereby breaking the paper between the clamping mechanism and the bubble pressing mechanism.

[0015] In some embodiments, a transmission mechanism may also be included. The bubble pressing mechanism comprises a pair of upper and lower bubble pressing rollers rotating in opposite directions. A first drive component drives the bubble pressing rollers to rotate, and the first drive component drives the lower clamping roller toward or away from the upper clamping roller via the transmission mechanism. Thus, the first drive component can both move the lower and upper clamping rollers toward or away from each other via the transmission mechanism and also drive the bubble pressing rollers to rotate, thereby achieving two drive functions from a single power source. Furthermore, the bubble pressing machine of the present invention has only two roller sets: the clamping roller and the bubble pressing roller. Compared to existing paper cushioning machines for producing pleated V-shaped cushioning paper, this machine has one fewer roller set, resulting in a simpler structure.

[0016] In some embodiments, a second driving component is further included, and the bubble pressing mechanism is a pair of bubble pressing rollers distributed up and down and rotating in opposite directions, and the second driving component drives the bubble pressing rollers to rotate.

[0017] Thus, the rotation of the two foaming rollers is driven by the second driving component, and the second driving component can drive the two foaming rollers to rotate in opposite directions.

[0018] In some embodiments, the transmission mechanism may include a synchronous belt, a one-way wheel body, a first rocker arm, a connecting rod, and a mounting member.

[0019] The synchronous belt loop is arranged on the driving shaft of the first driving component, the shaft body of the foam pressing roller, and the one-way wheel body. The first driving component can drive the foam pressing roller and the one-way wheel body to rotate synchronously.

[0020] One end of the first rocker arm is fixed on the shaft component of the one-way wheel body, and the other end is hinged to one end of the connecting rod.

[0021] The other end of the connecting rod is located on the mounting piece.

[0022] The end of the lower clamping roller is hinged on the mounting piece, and the other end of the connecting rod can drive the mounting piece to move up and down.

[0023] Therefore, when the bubble pressing machine is normally producing bubble paper, the first driving component drives the bubble pressing roller to rotate through the synchronous belt, and the one-way wheel body is one-way, so the rotating shaft of the one-way wheel body does not rotate. At this time, the upper clamping roller and the lower clamping roller keep clamping the paper material and conveying the paper material to the downstream direction. When loading is required, the driving shaft of the first driving component rotates in the opposite direction, that is, the synchronous belt transmits in the opposite direction, and the synchronous belt drives the rotating shaft of the one-way wheel body to rotate, and the rotating shaft of the one-way wheel body drives the first swing arm to rotate, and the rotation of the first swing arm drives one end of the connecting rod to move, that is, drives one end of the connecting rod to rotate with the rotating shaft of the one-way wheel body as the rotation center. When the paper is loaded, the driving shaft of the first driving component continues to rotate in the opposite direction to move the mounting part upward, and the lower clamping roller approaches the upper clamping roller and clamps the paper. The lower clamping roller is reset, and the loading is completed. Subsequently, the driving shaft of the first driving component can be rotated forward to enable the foaming roller to emboss the paper.

[0024] In some embodiments, the transmission mechanism may further include a slideway, and the mounting member may include a linkage shaft and a mounting block.

[0025] One end of the linkage shaft is hinged to the other end of the connecting rod, and the other end of the linkage shaft is arranged on the mounting block and can move laterally on the mounting block.

[0026] The end of the lower clamping roller is hinged on the mounting block, and the mounting block is slidably arranged on the slideway.

[0027] Therefore, when the bubble press is normally producing bubble paper, the first driving component drives the bubble pressing roller to rotate through the synchronous belt, and the one-way wheel body is one-way, so the rotating shaft of the one-way wheel body does not rotate. At this time, the upper clamping roller and the lower clamping roller keep clamping the paper material and conveying the paper material to the downstream direction. When loading is required, the driving shaft of the first driving component rotates in the opposite direction, that is, the synchronous belt transmits in the opposite direction, and the synchronous belt drives the rotating shaft of the one-way wheel body to rotate. The rotating shaft of the one-way wheel body drives the first swing arm to rotate, and the rotation of the first swing arm drives one end of the connecting rod to move, that is, drives one end of the connecting rod to rotate with the rotating shaft of the one-way wheel body as the rotation center, and the other end of the connecting rod One end can drive the linkage shaft to move, and the moving linkage shaft can drive the mounting block to slide up and down on the slide. When the mounting block slides up and down on the slide, the lower clamping roller moves away from the upper clamping roller, and then the paper can be easily passed between the upper clamping roller and the lower clamping roller, and the paper can be put between the two foaming rollers. After the loading is completed, the driving shaft of the first driving component continues to rotate in the opposite direction, so that the mounting block slides upward on the slide, and the lower clamping roller approaches the upper clamping roller and clamps the paper. The lower clamping roller is reset. At this time, the loading is completed, and the driving shaft of the first driving component can be rotated forward subsequently to make the foaming roller emboss the paper.

[0028] In some embodiments, the transmission mechanism may further include a transmission rod and two second rocker arms, and the number of the linkage shaft, the mounting block, and the slideway may all be two.

[0029] One end of a linkage shaft is hinged to the other end of the connecting rod, and the other end of the linkage shaft is arranged on one of the mounting blocks and can move laterally on the mounting block. The mounting block is slidably mounted on a slideway. One end of a second rocker is hinged to the linkage shaft, and the other end of the second rocker is fixed to one end of the transmission rod.

[0030] One end of another second swing rod is fixed on the other end of the transmission rod, one end of another linkage shaft is hinged on the other end of the second swing rod, the other end of the linkage shaft is set on another mounting block and can move laterally on the mounting block, and the mounting block is slidably mounted on another slideway.

[0031] Both ends of the lower clamping roller are hinged on two mounting blocks respectively.

[0032] Therefore, when loading is required, the driving shaft of the first driving component rotates in the opposite direction, and the connecting rod drives a linkage shaft to move. The moving linkage shaft drives the transmission rod to rotate through a second rocker rod, and the rotating transmission rod drives another second rocker rod to swing around the transmission rod. The second rocker rod can drive another linkage shaft to move, and the moving linkage shaft drives another mounting block to slide up and down on another slide, so that the two ends of the lower clamping roller can be balanced and synchronously approach or move away from the upper clamping roller.

[0033] In some embodiments, a slideway and a mounting block may be further included, wherein the lower clamping roller is mounted on the mounting block, and the first driving component drives the mounting block to move along the slideway. Thus, the first driving component drives the mounting block to slide along the slideway, and the lower clamping roller and the mounting block rise and fall synchronously, thereby achieving the mutual separation and convergence of the upper and lower clamping rollers.

[0034] In some embodiments, the slideway may be provided with a guide rod, which is sleeved with a spring. The end of the guide rod is inserted into the mounting block, with one end of the spring pressing against the slideway and the other end of the spring pressing against the mounting block. Thus, the mounting block can slide smoothly up and down the slideway along the guide rod. The spring on the guide rod facilitates rapid resetting of the mounting block and maintains a stable force on the mounting block on the slideway.

[0035] In some embodiments, the first driving component may include a cylinder, the piston rod of the cylinder drives the mounting block to slide along the slideway.

[0036] or

[0037] The first driving component may include a feeding motor, a gear and a rack, the rack being mounted on the mounting block along the length direction of the slideway, the gear being mounted on the output shaft of the feeding motor, and the gear being meshed with the rack.

[0038] Therefore, the sliding movement of the mounting block on the slide can also be driven by a cylinder, and the movement of the mounting block is driven by the extension and contraction of the piston rod of the cylinder, or the gear driven by the feed motor rotates, the rack engages with the gear, the gear drives the rack to move, and the mounting block and the rack move synchronously to realize the movement of the mounting block on the slide.

[0039] In some embodiments, two detection members may be included. A sensing rod is fixed on the transmission rod, and the detection member is located on the side of the sensing rod.

[0040] When the sensing rod triggers a detection element, the first driving component stops working, and the lower clamping roller separates from the upper clamping roller so that the paper can pass between the upper and lower clamping rollers without deformation.

[0041] When the sensing rod triggers another detecting element, the lower clamping roller approaches the upper clamping roller so that the lower clamping roller and the upper clamping roller clamp the paper.

[0042] Therefore, when loading is required, the driving shaft of the first driving component rotates in the opposite direction, the transmission rod rotates, and the rotating transmission rod drives the sensing rod to swing, and the mounting block slides up and down on the slide. When the sensing rod triggers one of the detection parts, the first driving component stops working. At this time, the lower clamping roller is separated from the upper clamping roller, and the paper can pass through the upper clamping roller and the lower clamping roller without changing. Then, the paper can be easily passed between the upper clamping roller and the lower clamping roller. Then the driving shaft of the first driving component continues to rotate in the opposite direction, the transmission rod rotates, and the rotating transmission rod drives the sensing rod to swing, and the mounting block slides upward on the slide, and the lower clamping roller approaches the upper clamping roller. When the sensing rod triggers another detection part, the first driving component stops working. At this time, the lower clamping roller and the upper clamping roller clamp the paper, and then the bubble press performs the normal process of producing bubble paper.

[0043] In some embodiments, a friction block and a guide column may also be included, and a wheel body is provided at the end of the lower clamping roller.

[0044] The lower end of the guide post is fixed, the upper end of the guide post is inserted into the friction block, and a buffer spring is provided on the guide post.

[0045] The friction block is located below the wheel body, and an arc-shaped groove that can accommodate part of the wheel body is provided on the end surface of the friction block close to the wheel body.

[0046] When the lower clamping roller moves away from the upper clamping roller, part of the wheel body is accommodated in the arc-shaped groove.

[0047] When the lower gear is in gear, the upper gear of the gear wheel is engaged with the gear of the gear wheel, and the gear wheel of the gear wheel is engaged with the gear wheel of the gear wheel. The lower clamping roller continues to move downward, and the pressing force of the wheel body on the friction block gradually increases. Under the action of the friction block, the wheel body will not rotate during the downward movement, that is, the lower clamping roller and the lower gear on the lower clamping roller will not rotate during the downward movement, thereby ensuring that when the lower clamping roller returns and moves upward, the lower gear can smoothly engage with the upper gear, and there will be no situation where the teeth of the lower gear and the teeth of the upper gear are misaligned and cannot engage. When the lower gear presses the friction block downward, the friction block can move smoothly downward along the guide column. The buffer spring on the guide column facilitates the rapid reset of the friction block and keeps the friction block stable during movement.

[0048] In some embodiments, the clamping mechanism may include a clamping portion for clamping the paper material and a conveying portion for conveying the paper material, wherein the conveying portion is located in an upstream direction or a downstream direction of the clamping portion.

[0049] The clamping part includes two clamping plates, two pressure plates or two rods that can move closer to or farther away from each other, or the clamping part includes a plate body and a conveyor belt that can move closer to or farther away from each other, or the clamping part includes a rod body and a conveyor belt that can move closer to or farther away from each other,

[0050] The conveying portion includes two rollers rotating in opposite directions, or the conveying portion includes a conveying belt.

[0051] Thus, clamping the paper material and conveying the paper material can be achieved by the clamping portion and the conveying portion respectively, and the styles of the clamping portion and the conveying portion can be selected as needed.

[0052] In some embodiments, an upper clamping roller may be fixedly provided with an upper clamping wheel, and a lower clamping wheel may be fixedly provided with a lower clamping wheel. The upper clamping wheel and the lower clamping wheel can clamp the paper material and convey the paper material downstream, and the upper clamping wheel and the lower clamping wheel can move closer to or farther away from each other. Thus, the upper clamping wheel and the lower clamping wheel can clamp the paper material and convey the paper material to the bubble pressing mechanism in the downstream direction. Since the upper clamping wheel and the lower clamping wheel can move closer to or farther away from each other, when loading is required, the upper clamping wheel and the lower clamping wheel are moved away from each other, and then the paper material can be easily passed between the upper clamping wheel and the lower clamping wheel. After loading is completed, the upper clamping wheel and the lower clamping wheel are moved closer to each other to clamp the paper material. When the paper material needs to be cut, the upper clamping roller and the lower clamping roller stop conveying the paper material, and the upper clamping wheel and the lower clamping wheel can clamp the paper material.

[0053] In some embodiments, the upper clamping roller may be fixedly provided with a plurality of upper pressing wheels, and the lower clamping roller may be fixedly provided with a plurality of lower pressing wheels. The number of upper clamping wheels and lower clamping wheels is the same, and each upper clamping wheel can clamp the paper together with a lower clamping wheel and convey the paper to the downstream direction. At least some of the upper pressing wheels and at least some of the lower pressing wheels are staggered in the length direction of the gap between the upper clamping roller and the lower clamping roller.

[0054] When the upper clamping wheel and the lower clamping wheel are close to each other and clamp the paper, the projections of the upper pressing wheel and the lower pressing wheel in the length direction of the gap between the upper clamping roller and the lower clamping roller overlap.

[0055] When the upper clamping wheel and the lower clamping wheel are away from each other, the projections of the upper pressing wheel and the lower pressing wheel in the length direction of the gap between the upper clamping roller and the lower clamping roller may not overlap.

[0056] The camming rollers are arranged on the rollers to move the paper between the top and bottom rollers, and the camming rollers are arranged on the rollers to move the paper between the top and bottom rollers, so that the paper can be moved to the rollers at a desired location.

[0057] In some embodiments, when the upper clamping roller and the lower clamping roller approach each other, the shortest path for the paper formed by the upper pressing wheel and the lower pressing wheel is zigzag.

[0058] When the upper clamping roller and the lower clamping roller move away from each other, the shortest path for the paper material to pass formed by the upper pressing wheel and the lower pressing wheel is in a straight line.

[0059] Therefore, when loading is required, the first driving component drives the upper clamping roller and the lower clamping roller to move away from each other, and then the paper can be easily put on the pressure wheel and the lower pressure wheel without any hindrance. After the loading is completed, the first driving component drives the upper clamping roller and the lower clamping roller to move closer to each other, so that the upper pressure wheel and the lower pressure wheel re-squeeze the paper to complete the loading process. The loading of paper is simple and convenient. There is no need to pass the paper between the upper pressure wheel and the lower pressure wheel little by little. Moreover, it is not easy to skew or deviate from the paper conveying path, which ensures the accuracy of the conveying path and greatly improves the efficiency of paper loading.

[0060] In some embodiments, the outer diameter of the upper pressing wheel can be larger than the outer diameter of the upper pinch wheel and / or the outer diameter of the lower pressing wheel can be larger than the outer diameter of the lower pinch wheel. Thus, it is ensured that the upper pressing wheel can press the paper toward the lower pressing wheel and the lower pressing wheel can press the paper toward the upper pressing wheel, thereby wrinkling the paper.

[0061] In some embodiments, the machine may further include upper and lower guide plates, arranged one above the other. The space between the upper and lower guide plates includes an entrance and a paper pre-shrinkage passage, which are interconnected. The paper pre-shrinkage passage is located between the upper and lower clamping rollers. Thus, the entrance between the upper and lower guide plates allows paper to enter for loading, while the paper pre-shrinkage passage guides the transport of paper.

[0062] In some embodiments, the height of the paper pre-shrinkage passage can be greater than the height of the entrance. As the paper passes between the upper and lower nip rollers, it is wrinkled and compressed, increasing its thickness. The height of the paper pre-shrinkage passage between the upper and lower guide plates is greater than the height of the entrance, providing space for the increased thickness of the paper. Furthermore, the narrower entrance prevents damage from human hands, improving safety.

[0063] In some embodiments, the thickness of at least one upper pressing wheel between the two outermost upper pressing wheels in the length direction of the upper clamping roller is greater than the thickness of the two outermost upper pressing wheels, or

[0064] At least one lower pressing wheel between the two outermost lower pressing wheels in the length direction of the lower clamping roller has a thickness greater than that of the two outermost lower pressing wheels.

[0065] Therefore, in this case, at least one upper pressing wheel between the two outermost upper pressing wheels or at least one lower pressing wheel between the two outermost lower pressing wheels can serve as the key area for pre-shrinkage in the width direction of the paper, thereby ensuring the overall effect of pre-shrinkage of the paper in the width direction.

[0066] In some embodiments, the ratio of the distance between the upper pressing wheel and the nearest lower pressing wheel in the length direction of the upper clamping roller to the longitudinal dimension of the overlapping portion of the projections of the upper pressing wheel and the nearest lower pressing wheel in the length direction of the upper clamping roller can be 0.3 to 0.9. This arrangement can ensure a pre-shrinkage effect in the width direction of the paper material, fully preparing the paper material for subsequent bubble forming.

[0067] In some embodiments, the angle between the line connecting the end point of the bottommost upper pressing wheel closest to the lower pressing wheel and the end point of the topmost lower pressing wheel closest to the upper pressing wheel and the end face of the upper pressing wheel can be 10 to 45 degrees. This arrangement can ensure a pre-shrinkage effect on the paper in the width direction, fully preparing the paper for subsequent bubble forming.

[0068] In some embodiments, the spacing between the two outermost upper pressing wheels can be 290-310 mm, or the spacing between the two outermost lower pressing wheels can be 290-310 mm. This spacing arrangement allows for pre-shrinkage of paper with widths of 300 mm, 400 mm, and 500 mm, achieving good pre-shrinkage effects and preventing the paper from tearing during embossing.

[0069] In some embodiments, there may be four upper pressing rollers, with the thickness of the two upper pressing rollers on the outermost sides of the upper clamping roller being smaller than that of the other two upper pressing rollers. Thus, the two upper pressing rollers between the two outermost upper pressing rollers can serve as a key area for pre-shrinking the paper in the width direction, further ensuring the overall pre-shrinkage effect of the paper in the width direction.

[0070] In some embodiments, the number of lower pressing rollers may be six, with two lower pressing rollers evenly spaced on either side of the two middle upper pressing rollers. Thus, the two upper pressing rollers between the two outermost upper pressing rollers and the four lower pressing rollers between the two outermost lower pressing rollers can serve as the key area for pre-shrinking the paper in the width direction, thereby ensuring a pre-shrinking effect on the paper in the width direction.

[0071] In some embodiments, a paper material detection unit for detecting whether a paper material exists may also be included, and the paper material detection unit is located between the clamping mechanism and the bubble pressing mechanism. Thus, the paper material detection unit can be used to detect whether a paper material exists between the clamping mechanism and the bubble pressing mechanism. When the paper material detection unit detects the presence of paper material, it indicates that the paper material has started to be conveyed. After the paper material detection unit detects the paper material, the controller of the bubble pressing machine can start to calculate the paper feed length. When the paper feed length reaches a set value (the set value can be the distance between adjacent easy-tear lines on the paper material), the paper is cut, and the position of each paper cut is upstream of the detection position of the paper material detection unit (for example, the distance between adjacent easy-tear lines on the paper material is 30 cm, and the paper material detection unit detects that the paper material has been cut when it has traveled 28 cm). In this way, it is ensured that each time the paper is cut and the paper material conveying is restarted, the paper material detection unit can re-detect that the paper pad has started to be conveyed.

[0072] In some embodiments, the paper material detection unit may include an upper guide plate, a lower guide plate, and a photoelectric sensor. 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. The photoelectric sensor is used to detect whether there is paper material passing between the upper guide plate and the lower guide plate. Thus, the photoelectric sensor can detect whether there is paper material passing between the upper guide plate and the lower guide plate.

[0073] In some embodiments, the paper material detection unit may further include a photoelectric encoder, a controller, and a drive motor. The shaft of the drive motor drives the upper clamping roller and the lower clamping roller to rotate in opposite directions. 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 drive motor. 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 has begun 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 based on the rotation speed of the upper clamping roller or the lower clamping roller. That is, the controller can calculate the paper feed length in real time. When the paper feed length reaches a set value (that is, the distance between adjacent tear lines on the paper), the controller controls the drive motor to stop working (while the drive shaft of the first drive component continues to rotate forward), and the paper is cut at this time. The position of each paper break is upstream of the detection position of the photoelectric sensor. For example, the distance between adjacent tear lines on the paper is 30 cm. The controller calculates that the drive motor stops working when the paper passes the detection position of the photoelectric sensor by 28 cm. At the same time, the drive shaft of the first drive component continues to rotate forward, thereby breaking the paper. In this way, it is ensured that when the drive motor 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. The position of breaking the paper is generally controlled at 0 to 4 cm (excluding 0) before the detection position.

[0074] In some embodiments, a paper jam detection mechanism may be further included, and the paper jam detection mechanism is located between the clamping mechanism and the bubble pressing mechanism.

[0075] The paper jam detection mechanism includes an upper plate, a lower plate, a limit rod, 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 flip detection plate is provided near the upstream direction of the upper plate. The reset mechanism is provided on the detection plate. The detection switch is provided on the side of the detection plate.

[0076] When paper is jammed 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 upper clamping roller and the lower clamping roller stop rotating.

[0077] When the paper jam between the detection plate and the lower plate is removed, the reset mechanism drives the detection plate to reset.

[0078] When the paper is blocked, the detection plate will be lifted up, and the detection plate will flip around the upper plate. When the paper 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 driving components of the upper and lower clamping rollers to stop working, that is, control the upper and lower clamping rollers to stop rotating, which can avoid damage to the driving components that drive the upper and lower clamping rollers to rotate, and the operator can remove the blocked paper in time when it finds that the paper stops working, so as to avoid the subsequent accumulation of large amounts of paper. The detection of the degree of paper blockage can be set. As long as the paper is blocked, the detection switch will be triggered to ensure that a large amount of paper will not accumulate between the upper and lower plates.

[0079] In some embodiments, the reset mechanism may include a limit rod and a reset spring, wherein the limit rod is provided 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.

[0080] When the paper jam between the detection plate and the lower plate is removed, the reset spring drives the detection plate to reset.

[0081] 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 drive the limit rod to move synchronously. 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 will automatically reset under the restoring force of the reset spring.

[0082] 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 will trigger the proximity switch or the contact switch.

[0083] In some embodiments, the upper plate and the detection plate can be integrally formed and made of an elastic sheet. Thus, when paper material becomes jammed between the upper and lower plates, the jammed paper material will lift up the elastic detection plate. Once the jammed paper material is removed, the elastic detection plate can flexibly sense the jam and quickly reset itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] FIG1 is a schematic structural diagram of a bubble pressing machine according to an embodiment of the present invention;

[0085] FIG2 is a side view of the bubble pressing machine shown in FIG1 ;

[0086] FIG3 is a schematic diagram of the connection structure of the bubble pressing mechanism, the paper material detection unit, the paper jam detection mechanism, the clamping mechanism, the upper guide plate, and the lower guide plate in the bubble pressing machine shown in FIG2 ;

[0087] FIG4 is a schematic structural diagram of the structure shown in FIG3 along direction A;

[0088] FIG5 is a schematic structural diagram of the upper clamping roller and the lower clamping roller in the bubble pressing machine shown in FIG2 ;

[0089] FIG6 is an enlarged schematic diagram of the upper clamping roller and the lower clamping roller shown in FIG5 at point B;

[0090] FIG7 is an enlarged schematic diagram of point C in the bubble pressing machine shown in FIG1 ;

[0091] FIG8 is a schematic structural diagram of the upper clamping roller, the lower clamping roller, the upper gear, the lower gear and the driven wheel in the bubble pressing machine shown in FIG1 . DETAILED DESCRIPTION

[0092] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments.

[0093] In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features referred to.

[0094] 1 to 8 schematically show the structure of a bubble pressing machine according to an embodiment of the present invention.

[0095] Referring to Figures 1 to 8 , a bubble pressing machine includes a clamping mechanism and a bubble pressing mechanism. Furthermore, the bubble pressing machine may include a first drive component 300, a transmission mechanism, a detection member 500, a friction block 600, a guide post 700, an upper guide plate 800, a lower guide plate 900, a paper material detection unit, a paper jam detection mechanism, a drive motor 1200, and a bracket.

[0096] The clamping mechanism is used to clamp the paper material and convey the paper material to the bubble pressing mechanism in the downstream direction. The upper clamping surface and the lower clamping surface of the clamping mechanism for clamping the paper material can be close to each other or away from each other. The bubble pressing mechanism is used to emboss the paper material to form bubble paper and convey the bubble paper in the downstream direction. The bubble pressing mechanism is located in the downstream direction of the clamping mechanism. When it is necessary to load the paper material, the upper clamping surface and the lower clamping surface of the clamping mechanism are away from each other, and then the paper material can be easily passed through the clamping mechanism. After the loading is completed, the upper clamping surface of the clamping mechanism is moved away from each other. The upper and lower clamping surfaces are close to each other to clamp the paper material, and then the bubble pressing machine performs the normal process of producing bubble paper. When the paper material needs to be cut, the clamping mechanism stops conveying the paper material and the clamping mechanism clamps the paper material, and the bubble pressing mechanism continues to convey the bubble paper formed by the paper material to the downstream direction, thereby breaking the paper material between the clamping mechanism and the bubble pressing mechanism, and the broken bubble paper is sent out by the bubble pressing mechanism, and the subsequent paper material to be processed continues to be conveyed to the bubble pressing mechanism, and the bubble pressing mechanism continues to emboss and form the new paper material until the next breaking operation.

[0097] 1 and 2 , the bracket includes a left bracket 1300 and a right bracket 1400 arranged longitudinally.

[0098] With reference to Figures 1 to 3, the clamping mechanism includes an upper clamping roller 101 and a lower clamping roller 102. The rotation directions of the upper clamping roller 101 and the lower clamping roller 102 are opposite. The rotation of the upper clamping roller 101 and the lower clamping roller 102 can be achieved by a motor. Specifically, with reference to Figures 1 and 2, the two ends of the upper clamping roller 101 are respectively mounted on the left bracket 1300 and the right bracket 1400 through a bearing. The upper clamping roller 101 can rotate on the bracket, and the two ends of the lower clamping roller 102 are respectively mounted on two mounting blocks 406 of the transmission mechanism through a bearing (detailed description will be given later). The lower clamping roller 102 can rotate on the bracket. A driving wheel 1201 is installed on the rotating shaft of the driving motor 1200, and a transmission belt 1202 is installed on the driving wheel 1201. One end of the upper clamping roller 101 A driven wheel 1011 is installed on the upper part, and the driving wheel 1201 is connected to the driven wheel 1011 through a transmission belt 1202. An upper gear 1014 is installed at the end of the upper clamping roller 101, and a lower gear 1024 is installed at the end of the lower clamping roller 102. The upper clamping roller 101 and the lower clamping roller 102 can rotate in opposite directions through the meshing upper gear 1014 and the lower gear 1024. When the driving motor 1200 is working, the driving motor 1200 drives the upper clamping roller 101 to rotate through the "driving wheel 1201-transmission belt 1202-driven wheel 1011", and the upper clamping roller 101 drives the lower clamping roller 102 to rotate synchronously through the meshing upper gear 1014 and the lower gear 1024. The rotation directions of the upper clamping roller 101 and the lower clamping roller 102 are opposite, thereby realizing the transportation of paper.

[0099] Referring to Figure 5, an upper clamping wheel 1012 is fixed on the upper clamping roller 101, and the upper clamping wheel 1012 rotates synchronously with the upper clamping roller 101. A lower clamping wheel 1022 is fixed on the lower clamping roller 102, and the lower clamping wheel 1022 rotates synchronously with the lower clamping roller 102. The upper clamping wheel 1012 and the lower clamping wheel 1022 can clamp the paper passing through the upper clamping roller 101 and the lower clamping roller 102 in the longitudinal direction. The bottom of the upper clamping wheel 1012 is the upper clamping surface, and the top of the lower clamping wheel 1022 is the lower clamping surface. Under the action of the drive motor 1200, the upper clamping wheel 1012 and the lower clamping wheel 1022 can clamp the paper and transport the paper toward the bubble pressing mechanism.

[0100] 5 and 8, in this embodiment, the number of the upper pressing rollers 1013 is four, the number of the lower pressing rollers 1023 is six, the number of the upper clamping rollers 1012 and the number of the lower clamping rollers 1022 are three, the three upper clamping rollers 1012 and one lower clamping roller 1022 respectively clamp the paper together and transport the paper to the downstream direction, the four upper pressing rollers 1013 and the three upper clamping rollers 1012 are staggered and distributed on the upper clamping roller 101, and the six lower pressing rollers 1023 and the three lower clamping rollers 1022 are staggered and distributed on the upper clamping roller 101. Distributed on the lower clamping roller 102, at least part of the upper pressing wheel 1013 and at least part of the lower pressing wheel 1023 are staggered in the length direction of the gap between the upper clamping roller 101 and the lower clamping roller 102. Specifically, with the middle upper clamping wheel 1012 and the middle lower clamping wheel 1022 as the center line, the upper pressing wheel 1013 and the lower pressing wheel 1023 on the left side of the center line are staggered in the horizontal direction, and the upper pressing wheel 1013 and the lower pressing wheel 1023 on the right side of the center line are also staggered in the horizontal direction. The upper pressing wheels 1013 and the upper clamping wheels 1012 on both sides of the upper center line of the clamping roller 101 are symmetrically distributed, and the lower pressing wheels 1023 and the lower clamping wheels 1022 on both sides of the upper center line of the lower clamping roller 102 are symmetrically distributed. There are two lower pressing wheels 1023 on the left and right sides of the two upper pressing wheels 1013 in the middle, and the upper pressing wheels 1013 and the lower pressing wheels 1023 can press the paper passing through the upper clamping roller 101 and the lower clamping roller 102 in the longitudinal direction to deform the paper. Produce the effect of pre-shrinkage, like this, when paper passes between upper clamping roller 101 and lower clamping roller 102, under the action of upper pressing wheel 1013 and lower pressing wheel 1023, the width direction of paper (the length direction of upper clamping roller 101 and lower clamping roller 102) can be compressed by wrinkles, form wavy, shorten the size of paper in width direction, realize pre-shrinkage to paper in width direction, thereby reduce the probability of paper being torn when subsequent bubble pressing mechanism is carried out embossing. In other embodiments, upper pressing wheel 1013, lower pressing wheel 1023, upper clamping wheel 1012, lower clamping wheel 1022 quantity and distribution mode can be adjusted according to the width of paper, to the pre-shrinkage requirement of paper. In other embodiments, upper pressing wheel 1013 and lower pressing wheel 1023 can be installed by bearing so that upper pressing wheel 1013 and lower pressing wheel 1023 can rotate, and this setting can reduce the friction between paper and upper pressing wheel 1013 and lower pressing wheel 1023.

[0101] 5 , when the upper clamping wheel 1012 and the lower clamping wheel 1022 clamp the paper, the projections of the upper pressing wheel 1013 and the lower pressing wheel 1023 in the length direction (left-right direction as shown in FIG5 ) of the gap between the upper clamping roller 101 and the lower clamping roller 102 overlap. In this way, the upper pressing wheel 1013 can press the paper toward the lower pressing wheel 1023, and the lower pressing wheel 1023 can press the paper toward the upper pressing wheel 1013, so that the paper is wrinkled. When the upper clamping wheel 1012 and the lower clamping wheel 1022 are away from each other for a certain distance, the projections of the upper pressing wheel 1013 and the lower pressing wheel 1023 in the length direction of the gap between the upper clamping roller 101 and the lower clamping roller 102 (the left and right direction shown in FIG5 ) may not overlap, so that the paper can be easily passed between the upper clamping roller 101 and the lower clamping roller 102 when loading. Specifically, referring to FIG5 , the outer diameter of the upper pressing wheel 1013 is larger than that of the upper clamping wheel 1 5, and the lower pressing wheel 1023 can be extended between the upper pressing wheels 1013 in the longitudinal direction as shown in FIG5. In this way, when the paper passes between the upper clamping roller 101 and the lower clamping roller 102, it is ensured that the upper pressing wheel 1013 can press the paper in the direction of the lower pressing wheel 1023, and the lower pressing wheel 1023 can press the paper in the direction of the upper pressing wheel 1013, so that the paper is wrinkled. Under the joint action of the upper pressing wheel 1013 and the lower pressing wheel 1023, the width direction of the paper (the length direction of the upper clamping roller 101 and the lower clamping roller 102) will be wrinkled and compressed to form a wave shape, shortening the size of the paper in the width direction, realizing pre-shrinkage of the paper in the width direction, thereby reducing the probability of the paper being torn when it is subsequently embossed and formed by the bubble pressing mechanism.

[0102] Referring to Figure 5, in this embodiment, the thickness of the two outermost upper pressing wheels 1013 in the length direction of the upper clamping roller 101 is less than the thickness of the two middle upper pressing wheels 1013, and the thickness of the lower pressing wheel 1023 is the same as the thickness of the two outermost upper pressing wheels 1013. In this way, the two upper pressing wheels 1013 between the two outermost upper pressing wheels 1013 and the four middle lower pressing wheels 1023 can jointly serve as the key areas for pre-shrinkage in the width direction of the paper, and are symmetrically distributed to ensure that the pre-shrinkage of the paper remains balanced, thereby ensuring the overall effect of the pre-shrinkage of the paper in the width direction. In other embodiments, it may also be that: the thickness of the two outermost lower pressing wheels 1023 in the length direction of the lower clamping roller 102 is smaller than the thickness of the other lower pressing wheels 1023, and the thickness of the upper pressing wheel 1013 is the same as the thickness of the two outermost lower pressing wheels 1023. In this way, the other lower pressing wheels 1023 between the two outermost lower pressing wheels 1023 and the two middle upper pressing wheels 1013 can be used together as the key area for pre-shrinkage in the width direction of the paper, thereby ensuring the overall effect of pre-shrinkage of the paper in the width direction.

[0103] Referring to Figure 6, the ratio of the spacing dimension L1 between the upper pressing wheel 1013 and the nearest lower pressing wheel 1023 in the length direction of the upper clamping roller 101 and the longitudinal dimension L2 (compression depth of the paper) of the overlapping part of the projection of the upper pressing wheel 1013 and the nearest lower pressing wheel 1023 in the length direction of the upper clamping roller 101 is 0.3 to 0.9. This setting can ensure the pre-shrinkage effect of the paper in the width direction, reduce the probability of the paper being torn during subsequent bubble forming, and make full preparations for the subsequent bubble forming of the paper.

[0104] Referring to Figure 6, the angle a between the connecting line 100 between the end point of the lower pressing wheel 1023 at the bottom of the upper pressing wheel 1013 and the end point of the lower pressing wheel 1023 at the top close to the upper pressing wheel 1013 and the end face of the upper pressing wheel 1013 is 10 to 45°. This setting can ensure the pre-shrinkage effect of the paper in the width direction, reduce the probability of the paper being torn during subsequent bubble forming, and make full preparations for the subsequent bubble forming of the paper.

[0105] Referring to Figure 5, in this embodiment, the spacing L3 between the two outermost lower pressing wheels 1012 is 290-310 mm. This spacing setting is compatible with the pre-shrinkage processing of paper materials with widths of 300 mm, 400 mm, and 500 mm, and has a good pre-shrinkage effect. It is basically compatible with paper materials of commonly used widths and can ensure that the paper materials are not easily torn during stamping. In other embodiments, the spacing between the two outermost upper pressing wheels 1013 can also be 290-310 mm.

[0106] Referring to Figure 5, when the paper passes between the upper clamping roller 101 and the lower clamping roller 102, the upper clamping wheel 1012 and the lower clamping wheel 1022 clamp the paper together and convey the paper to the downstream direction. At the same time, under the joint action of the upper pressing wheel 1013 and the lower pressing wheel 1023, the width direction of the paper (the length direction of the upper clamping roller 101 and the lower clamping roller 102) will be wrinkled and compressed to form a wave shape, shortening the size of the paper in the width direction, thereby achieving pre-contraction of the paper in the width direction. Moreover, since L1 (as shown in Figure 6) and the upper pressing wheel 1013 extend into the lower The ratio of the depth L2 (as shown in Figure 6) between the pressing wheels 1023 is 0.3 to 0.9, and the angle a between the upper pressing wheel 1013 and the nearest lower pressing wheel 1023 is set to 10 to 45 degrees, which can ensure the pre-shrinkage effect of the paper in the width direction, reduce the probability of the paper being torn during subsequent bubble forming, and make full preparations for the subsequent bubble forming of the paper. In addition, the upper clamping roller 101 and the lower clamping roller 102 can both pre-shrink the paper and transport the paper in the downstream direction, realizing the two-in-one function of pre-shrinking and transporting the paper.

[0107] Referring to Figure 1, the first driving component 300 can drive the lower clamping roller 102 to approach or move away from the upper clamping roller 101. The first driving component 300 drives the lower clamping roller 102 to approach or move away from the upper clamping roller 101 through the transmission mechanism, that is, the first driving component 300 can drive the lower clamping wheel 1022 on the lower clamping roller 102 to approach or move away from the upper clamping roller 101 through the transmission mechanism.

[0108] 1 and 2 , the transmission mechanism includes a synchronous belt 401 , a one-way wheel 402 , a first rocker 403 , a connecting rod 404 , two mounting members, two slideways 407 , a transmission rod 408 and two second rocker arms 409 , and the mounting members include a linkage shaft 405 and a mounting block 406 .

[0109] 1 to 3 , the bubble pressing mechanism is a pair of bubble pressing rollers 201 distributed up and down and rotating in opposite directions. When the two bubble pressing rollers 201 rotate, they can emboss the paper material so that the surface of the formed paper material presents uneven ridges and depressions, thereby forming bubble paper.

[0110] Referring to Figure 1, the first driving component 300 can be a motor. The driving shaft of the first driving component 300 is inserted into the right bracket 1400. A rotating wheel 3001 is installed on the driving shaft of the first driving component 300. The end of the foam pressing roller 201 located below passes through the right bracket 1400 and the part extending from the right bracket 1400 is installed with a synchronous wheel 2011. The one-way wheel body 402 is installed on the right bracket 1400. The one-way wheel body 402 can be composed of a one-way bearing + a ring body. The ring body has a built-in one-way bearing. The inner ring of the one-way bearing is installed with a shaft component. The shaft component is installed on the right bracket through a bearing 1400, the one-way wheel body 402 can only rotate in one direction. In the one-way wheel body 402 in FIG1, when the ring body of the one-way wheel body 402 rotates clockwise, the shaft component of the one-way wheel body 402 does not rotate. When the ring body of the one-way wheel body 402 rotates counterclockwise, the shaft component of the one-way wheel body 402 also rotates counterclockwise. The one-way wheel body 402 is similar to the ratchet structure on the rear wheel of the self-supporting vehicle. In this embodiment, the structure of the synchronous wheel 2011 is the same as that of the one-way wheel body 402, except that the direction of one-way rotation is opposite. The synchronous belt 401 is looped on the rotating wheel 3001, the synchronous wheel 2011, and the one-way wheel body 402. When the driving shaft of the first driving component 300 rotates forward, the rotating wheel 3001 drives the synchronous belt 401 to transmit clockwise, and the synchronous belt 401 drives the synchronous wheel 2011 to rotate clockwise. At this time, the ring body of the one-way wheel body 402 rotates clockwise and the shaft component of the one-way wheel body 402 does not rotate. The synchronous wheel 2011 drives the foam pressing roller 201 located below to rotate. The end of the foam pressing roller 201 located above is connected to the foam pressing roller 201 located below through two mutually meshing upper gear components 2012 and lower gear components 2013 (as shown in Figure 2), thereby ensuring the rotation direction of the two foam pressing rollers 201 In the opposite direction, when the lower bubble pressing roller 201 rotates, the upper bubble pressing roller 201 rotates in the opposite direction. The two bubble pressing rollers 201 rotating in opposite directions can emboss the paper material to form bubble wrap and transport the bubble wrap downstream. When the drive shaft of the first drive component 300 rotates in the opposite direction, the rotating wheel 3001 drives the synchronous belt 401 to transmit counterclockwise. The synchronous belt 401 drives the ring body of the one-way wheel body 402 to rotate counterclockwise, and the shaft component of the one-way wheel body 402 also rotates counterclockwise. At this time, the lower bubble pressing roller 201 does not rotate to prevent the bubble wrap between the two bubble pressing rollers 201 from retreating. In addition, the ends of the upper bubble pressing roller 201 are respectively mounted on the left bracket 1300 and the right bracket 1400 via a bearing, while the ends of the lower bubble pressing roller 201 are respectively mounted on the left bracket 1300 and the right bracket 1400 via a bearing.

[0111] Referring to Figure 1, one end of the first rocker arm 403 is fixed on the shaft component of the one-way wheel body 402, and the first rocker arm 403 is hinged to one end of the connecting rod 404 through an axis. The other end of the connecting rod 404 is installed on a mounting member. Specifically, the other end of the connecting rod 404 is hinged to a linkage shaft 405, and the end of the linkage shaft 405 is installed on a mounting block 406. A slide 407 is installed on the right bracket 1400, and a longitudinal slide groove 4073 is formed on the slide 407. The aforementioned mounting block 406 is accommodated in the slide groove 4073 on the slide 407, and the mounting block 406 can move up and down in the slide groove 4073 along the slide 407. One end of a second rocker arm 409 is hinged to the aforementioned linkage shaft 405, and the other end of the second rocker arm 409 is fixed to one end of the transmission rod 408.

[0112] Referring to Figure 2, one end of another second rocker arm 409 is fixed to the other end of the transmission rod 408, and another mounting member is installed on the other end of the second rocker arm 409. Specifically, one end of another linkage shaft 405 is hinged to the other end of the second rocker arm 409, and the end of the linkage shaft 405 is installed on another mounting block 406. Another slide 407 is installed on the left bracket 1300, and the mounting block 406 is installed in the slide 407. The mounting block 406 can move up and down along the slide 407. The structure of the slide 407 is the same as that of the slide 407 installed on the right bracket 1400, and the structure of the mounting block 406 is the same as that of the mounting block 406 in the slide 407 installed on the right bracket 1400.

[0113] Referring to Figure 7, in order to ensure that the linkage shaft 405 can drive the transmission rod 408 to rotate through the second rocker arm 409 when the linkage shaft 405 moves up and down, a horizontal groove 4061 is formed on both mounting blocks 406, and the end of the linkage shaft 405 is accommodated in the groove 4061. The end of the linkage shaft 405 can move horizontally in the groove 4061. In this way, when the linkage shaft 405 drives the mounting block 406 to move up and down, the linkage shaft 405 will synchronously move horizontally in the groove 4061 on the mounting block 406.

[0114] 1 and 2 , the ends of the lower clamping roller 102 are respectively mounted on two mounting blocks 406 via a bearing; when the bubble press is normally producing bubble paper, under the action of the drive motor 1200, the upper clamping wheel 1012 on the upper clamping roller 101 and the lower clamping wheel 1022 on the lower clamping roller 102 clamp the paper material and convey the paper material toward the bubble pressing mechanism. At the same time, the driving shaft of the first driving component 300 rotates in the forward direction, and the driving shaft of the first driving component 300 drives the two bubble pressing rollers 201 to rotate through the synchronous belt 401. At this time, the ring body of the one-way wheel body 402 rotates clockwise and the shaft component of the one-way wheel body 402 does not rotate. , the two bubble pressing rollers 201 rotating in opposite directions can emboss the paper material to form bubble paper and transport the bubble paper to the downstream direction; when loading is required, the driving motor 1200 stops working, and the driving shaft of the first driving component 300 rotates in the opposite direction, that is, the synchronous belt 401 transmits in the opposite direction, and the synchronous belt 401 drives the shaft component of the one-way wheel body 402 to rotate, and the shaft component of the one-way wheel body 402 drives the first swing rod 403 to rotate, and the rotation of the first swing rod 403 drives one end of the connecting rod 404 to move, that is, drives one end of the connecting rod 404 to rotate with the shaft component of the one-way wheel body 402 as the rotation center, and the other end of the connecting rod 404 can In order to drive a linkage shaft 405 to move, the moving linkage shaft 405 drives a mounting block 406 to slide up and down on a slide 407. Synchronously, the linkage shaft 405 drives the transmission rod 408 to rotate through a second swing rod 409. The transmission rod 408 drives another linkage shaft 405 to move through another second swing rod 409. The moving linkage shaft 405 drives another mounting block 406 to slide up and down on another slide 407, thereby achieving balanced and synchronous movement of the two ends of the lower clamping roller 102 close to or away from the upper clamping roller 101. When the mounting block 406 slides downward on the slide 407, the lower clamping roller 102 102 moves away from the upper clamping roller 101, and then the paper can be easily passed between the upper clamping roller 101 and the lower clamping roller 102, and the paper can be put between the two foaming rollers 201. After the loading is completed, the driving shaft of the first driving component 300 continues to rotate in the opposite direction, so that the mounting block 406 slides upward on the slide 407, and the lower clamping roller 102 approaches the upper clamping roller 101 and clamps the paper. The driving shaft of the first driving component 300 stops reversing. At this time, the lower clamping roller 102 is reset, that is, the loading is completed. Subsequently, the driving shaft of the first driving component 300 can be rotated in the forward direction to make the foaming roller 201 emboss the paper.

[0115] In other embodiments, the transmission mechanism may only include a one-way wheel body 402, a first rocker arm 403, a connecting rod 404, a transmission rod 408, two second rocker arms 409, and a linkage shaft 405. Compared with the above embodiment, the synchronous belt 401 is missing. The two foam pressing rollers 201 can be belt driven, chain driven, and gear driven. The drive shaft of the first driving component 300 and the foam pressing roller 201 can also be any of the above transmission methods. The one-way wheel body 402 is directly coaxially arranged on the drive shaft of the first driving component 300, that is, the reversal of the foam pressing roller 201 can be ignored when loading. The connection method between the one-way wheel body 402 and other structures is the same as that in the above embodiment and will not be repeated here.

[0116] In other embodiments, a second driving component may be included, and the second driving component may be a motor. The rotation of the two bubble pressing rollers 201 is not driven by the first driving component 300, but is driven by the second driving component. The second driving component may drive the two bubble pressing rollers 201 to rotate in opposite directions by any one of, but not limited to, belt drive, chain drive, and gear drive.

[0117] 1 and 2 , guide rods 4071 are mounted at the bottom of each of the two slideways 407. Springs 4072 are sleeved on the guide rods 4071. The upper ends of the guide rods 4071 are inserted into the mounting block 406. The lower ends of the springs 4072 press against the inner bottom of the slideway 407, while the upper ends of the springs 4072 press against the mounting block 406. The mounting block 406 can smoothly slide up and down along the slideways 407 along the guide rods 4071. The springs 4072 on the guide rods 4071 facilitate rapid repositioning of the mounting block 406 and maintain a stable force on the mounting block 406 on the slideways 407. In this embodiment, there are three guide rods 4071 and three springs 4072, each sleeved with a spring 4072. The mounting block 406 can smoothly slide up and down along the slideways 407 along the three guide rods 4071. In other embodiments, the number of guide rods 4071 and springs 4072 can be appropriately adjusted according to the sliding requirements of the mounting block 406 and the size of the slideway 407 .

[0118] Referring to FIG1 , two detection members 500 are mounted on a slide 407. The two detection members 500 are distributed up and down. The detection members 500 can be photoelectric sensors. A sensing rod 4081 is fixed on the transmission rod 408. The detection member 500 is located on the side of the sensing rod 4081. When the sensing rod 4081 triggers the detection member 500 above, the first driving component 300 stops working. At this time, the lower clamping roller 102 is separated from the upper clamping roller 101 so that the paper can pass between the upper clamping roller 101 and the lower clamping roller 102 without deformation. At this time, it is used for feeding. When the sensing rod 4081 is triggered, the first driving component 300 stops working. When the rod 4081 triggers the detection member 500 below, the lower clamping roller 102 is close to the upper clamping roller 101 so that the lower clamping roller 102 and the upper clamping roller 101 clamp the paper and convey it; when loading is required, the driving shaft of the first driving component 300 rotates in the opposite direction, the transmission rod 408 rotates, and the rotating transmission rod 408 drives the sensing rod 4081 to swing, and the mounting block 406 slides up and down on the slide 407. When the sensing rod 4081 triggers the detection member 500 above, the first driving component 300 stops working. At this time, the mounting block 406 is on the slide 407. The paper material is easily passed between the upper clamping roller 101 and the lower clamping roller 102, and then the driving shaft of the first driving component 300 continues to rotate in the opposite direction, the transmission rod 408 rotates, and the rotating transmission rod 408 drives the sensing rod 4081 to swing, and the mounting block 406 slides upward on the slide 407. When the sensing rod 4081 triggers the detection member 500 below, the first driving component 300 stops working. The mounting block 406 slides upward on the slide 407 to the highest position, the lower clamping roller 102 and the upper clamping roller 101 clamp the paper material, and then the bubble press performs the normal process of producing bubble paper. The two detection components 500 can limit the downward and upward positions of the lower clamping roller 102. The detection components 500 can send the detected signals to the controller of the bubble press itself for control processing. The controller of the bubble press can control the first driving component 300 to work, stop working, and the forward and reverse rotation of the driving shaft of the first driving component 300.

[0119] Referring to Figure 2, the end of the lower clamping roller 102 is equipped with a wheel body 1021 that rotates synchronously with the lower clamping roller 102, the friction block 600 is located below the wheel body 1021, and the lower end of the guide column 700 is fixed to the slide 407 located on the left bracket 1300, such as the lower end of the guide column 700 is fixed to the protrusion 602 on the side of the slide 407, the upper end of the guide column 700 is inserted into the friction block 600, and a buffer spring 701 is sleeved on the guide column 700, the lower end of the buffer spring 701 is pressed against the protrusion 602 on the side of the slide 407, the upper end of the buffer spring 701 is pressed against the friction block 600, and the end surface of the friction block 600 close to the wheel body 1021 An arc-shaped groove 601 is formed, and part of the wheel body 1021 can be accommodated in the arc-shaped groove 601. When the lower clamping roller 102 is away from the upper clamping roller 101, part of the wheel body 1021 can be accommodated in the arc-shaped groove 601; when loading is required, the lower clamping roller 102 will be away from the upper clamping roller 101, and the lower clamping roller 102 moves downward. Since the lower clamping roller 102 and the upper clamping roller 101 clamp the paper and convey it in the downstream direction through the cooperation of the lower gear 1024 and the upper gear 1014 (as shown in Figure 1), it is necessary to ensure that when the lower clamping roller 102 returns and moves upward after moving downward, the lower gear 1024 on the lower clamping roller 102 can cooperate with the upper gear 1014 The upper gear 1014 on the clamping roller 101 is engaged normally and will not get stuck. The setting of the friction block 600 allows the lower clamping roller 102 to move downward a certain distance (when the teeth of the lower gear 1024 meshing with the upper gear 1014 are half separated or before the teeth of the lower gear 1024 are completely disengaged from the teeth of the upper gear 1014). The lower part of the wheel body 1021 is pressed against the arc groove 601 on the friction block 600. As the lower clamping roller 102 continues to move downward, the pressing force of the wheel body 1021 on the friction block 600 gradually increases. Under the action of the friction block 600, the wheel body 1021 will not rotate during the downward movement. The lower clamping roller 102 and the lower gear 1024 on the lower clamping roller 102 do not rotate during the downward movement, thereby ensuring that when the lower clamping roller 102 returns and moves upward, the lower gear 1024 can smoothly mesh with the upper gear 1014, and the teeth of the lower gear 1024 and the teeth of the upper gear 1014 will not be misaligned and unable to mesh. When the wheel body 1021 presses the friction block 600 downward, the friction block 600 can move smoothly downward along the guide post 700. The buffer spring 701 on the guide post 700 facilitates the rapid reset of the friction block 600 and ensures that the friction block 600 remains stable during movement. In this embodiment, there are two guide posts 700 and two buffer springs 701, each of which is equipped with a buffer spring 701, so that the friction block 600 can move smoothly up and down along the two guide posts 700. In other embodiments, the number of guide posts 700 and buffer springs 701 can be appropriately adjusted according to the movement requirements of the friction block 600 and the size of the friction block 600 .

[0120] Referring to Figures 1 and 2, the upper bubble pressing roller 201 and the lower bubble pressing roller 201 are located downstream of the upper clamping roller 101 and the lower clamping roller 102. When the paper between the upper bubble pressing roller 201 and the upper clamping roller 101 needs to be cut, the drive motor 1200 stops working and the upper clamping roller 101 and the lower clamping roller 102 clamp the paper, and the upper bubble pressing roller 201 and the lower bubble pressing roller 201 continue to transport the paper to the downstream direction, and the paper between the upper clamping roller 101 and the upper bubble pressing roller 201 is pulled apart.

[0121] 2 to 4 , the upper guide plate 800 and the lower guide plate 900 are arranged up and down, and the space between the upper guide plate 800 and the lower guide plate 900 includes an entrance portion 891 and a paper pre-shrinkage passage portion 892 that are interconnected, and the paper pre-shrinkage passage portion 892 is located between the upper clamping roller 101 and the lower clamping roller 102. The upper guide plate 800 is formed with a plurality of first through grooves for the upper pressing wheel 1013 and the upper clamping wheel 1012 to penetrate, ensuring that the upper guide plate 800 does not affect the rotation of the upper clamping roller 101, and the lower guide plate 900 is formed with a plurality of second through grooves for the lower pressing wheel 1023 and the lower clamping wheel 1022 to penetrate, ensuring that the lower guide plate 900 does not affect the rotation of the lower clamping roller 102 The paper pre-shrinkage passage 892 is rotated to guide the transportation of the paper, and the entrance portion 891 between the upper guide plate 800 and the lower guide plate 900 is for the paper to enter and load. Referring to Figure 4, the height of the paper pre-shrinkage passage 892 is greater than the height of the entrance portion 891. Since the paper will be wrinkled and compressed when passing between the upper clamping roller 101 and the lower clamping roller 102, the thickness of the paper will increase. The height of the paper pre-shrinkage passage 892 between the upper guide plate 800 and the lower guide plate 900 is greater than the height of the entrance portion 891, which can provide space for the paper with increased thickness. Moreover, the narrower entrance portion 891 can prevent people from reaching in and causing damage, thereby improving safety.

[0122] The paper material detection part is located between the clamping mechanism and the bubble pressing mechanism, and is used to detect whether there is paper material between the clamping mechanism and the bubble pressing mechanism. The specific structure of the paper material detection unit can be: referring to Figures 3 and 4, the paper material detection unit includes an upper guide plate 1001, a lower guide plate 1002, a photoelectric sensor 1003, a photoelectric encoder, a controller (not shown) and a drive motor 1200. The upper guide plate 1001 and the lower guide plate 1002 are distributed up and down, and the upper guide plate 1001 and the lower guide plate 1002 are located between the clamping mechanism and the bubble pressing mechanism. The area between the upper guide plate 1001 and the lower guide plate 1002 is for paper to pass through. The photoelectric sensor 1003 can use a beam-type photoelectric sensor. The transmitting end of the photoelectric sensor 1003 is installed on the upper guide plate 1001, and the receiving end of the photoelectric sensor 1003 is installed on the lower guide plate 1002. A through hole 1004 is formed on the upper guide plate 1001 for the transmitting end and the receiving end of the photoelectric sensor 1003 to face each other. A through hole is also formed on the lower guide plate 1002 for the transmitting end and the receiving end of the photoelectric sensor 1003 to face each other. The photoelectric encoder (not shown) is installed On the upper clamping roller 101 (or the lower clamping roller 102), a photoelectric encoder can detect the number of rotations of the upper clamping roller 101 in real time. The photoelectric sensor 1003 can be used to detect whether there is paper passing between the upper guide plate 1001 and the lower guide plate 1002. The photoelectric sensor 1003 is connected to the controller via a wiring harness, and the photoelectric encoder is connected to the controller via a wiring harness. The photoelectric sensor 1003 can send the detected signal to the controller for control processing, and the photoelectric encoder can send the detected signal to the controller for control processing. The controller is electrically connected to the drive motor 1200, and the controller can control the drive motor 1200 to start or stop working. The controller can calculate the length of the paper passing between the upper clamping roller 101 and the lower clamping roller 102 based on the number of rotations of the upper clamping roller 101 detected by the photoelectric encoder and the circumference of the upper pressing wheel 1012. The controller (not shown) can directly use the controller part of the bubble press 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 1003 between the clamping mechanism (upper clamping roller 101 and lower clamping roller 102) and the bubble pressing mechanism (two bubble pressing rollers 201) is used to detect whether there is paper. When the photoelectric sensor 1003 detects that there is paper between the upper guide plate 1001 and the lower guide plate 1002, it indicates that the paper starts to be transported. At this time, the controller starts to calculate the paper feeding length. When the paper feeding length reaches the set value, the paper is cut off (the driving motor 1200 stops working, and the driving shaft of the first driving component 300 continues to rotate forward), and the position of each paper cut is at the position of the photoelectric sensor. 1003 detection position upstream, for example, the distance between adjacent tear lines on the paper is 30 cm, the controller calculates that when the paper passes 28 cm from the detection position of the photoelectric sensor 1003, the drive motor 1200 stops working, and the drive shaft of the first drive component 300 continues to rotate forward, thereby breaking the paper. In this way, it is ensured that each time the drive motor 1200 restarts to convey the paper after the paper is broken, the starting end of the paper is located upstream of the detection position of the photoelectric sensor 1003, so that the photoelectric sensor 1003 can re-detect the start of paper conveyance each time, and the position where the paper is broken is generally controlled to be 0 to 4 cm (excluding 0) before the detection position. In other embodiments, the photoelectric sensor 1003 can also use a background suppression photoelectric sensor, which is installed on the upper guide plate 1001 or the lower guide plate 1002. The background suppression photoelectric sensor can be used to detect whether there is paper passing between the upper guide plate 1001 and the lower guide plate 1002. In other embodiments, the drive motor 1200 may be a brushless motor, and the photoelectric encoder may be omitted. The brushless motor has a built-in stroke calculation function, which can calculate the length of the paper passing between the upper clamping roller 101 and the lower clamping roller 102 in real time.

[0123] The paper jam detection mechanism is located between the clamping mechanism and the bubble pressing mechanism. The paper jam detection mechanism is used to detect whether there is a paper jam between the clamping mechanism and the bubble pressing mechanism, because when the paper material is broken and the clamping mechanism transports the paper material again, there may be a paper jam or paper jam. The specific structure of the paper jam detection mechanism can be: with reference to Figures 3 and 4, the paper jam detection mechanism includes an upper plate 1101, a lower plate 1102, a reset mechanism and a detection switch 1105. The upper plate 1101 and the lower plate 1102 are distributed up and down. The upper plate 1101 and the lower plate 1102 are located between the clamping mechanism and the bubble pressing mechanism. The upper plate 1101 and the upper guide plate 1001 can be integrally formed to form a plate body. The lower plate 1102 and the lower guide plate 1002 can be integrally formed to form a plate body. The area between the upper plate 1101 and the lower plate 1102 is for the paper material to pass through. The upper plate 1101 is close to the upstream direction ( The upper clamping roller 101 and the lower clamping roller 102 are integrally formed with a reversible detection plate 1106, and the detection plate 1106 is aligned with the upper guide plate 800 near the side of the upper guide plate 800. The upper plate 1101 and the detection plate 1106 can be made of elastic sheets. The detection plate 1106 and the upper plate 1101 are arranged in a bent shape. This setting of the detection plate 1106 can not only guide the paper material to enter the channel between the upper plate 1101 and the lower plate 1102, but also enable the detection plate 1106 to flexibly sense the blockage of the paper material. The reset mechanism includes a limit rod 1103 and a reset rod 1104. Spring 1104, one end of the limit rod 1103 is fixed on the detection plate 1106, the return spring 1104 is sleeved on the limit rod 1103, the other end of the limit rod 1103 is inserted into a mounting bracket 1107, the mounting bracket 1107 is mounted on the bracket, one end of the return spring 1104 is against the detection plate 1106, the other end of the return spring 1104 is pressed against the mounting bracket 1107, the detection switch 1105 is mounted on the right bracket 1400 of the bracket, and the detection switch 1105 is located on the side of the detection plate 1106. In this embodiment, the limit rod 1103, the return spring 1104 and the mounting bracket There are two 1107 . The end of one limiting rod 1103 is inserted into one mounting bracket 1107 , and the end of the other limiting rod 1103 is inserted into the other mounting bracket 1107 . The two mounting brackets 1107 are respectively mounted on the left bracket 1300 and the right bracket 1400 of the bracket. The detection switch 1105 can be a proximity switch or a contact switch. Specifically, the detection switch 1105 can be a micro switch. The detection switch 1105 can send the detected signal to the controller of the bubble press itself for control processing, and the controller of the bubble press can control the drive motor 1200 to stop working.When paper is jammed between the detection plate 1106 and the lower plate 1102, the jammed paper will lift up the detection plate 1106, and the detection plate 1106 will flip around the upper plate 1101. When the paper is jammed to a certain extent, the detection plate 1106 triggers the detection switch 1105. After the detection switch 1105 is triggered, the drive motor 1200 stops working, and the upper clamping roller 101 and the lower clamping roller 102 stop rotating, thereby avoiding damage to the drive motor 1200 that drives the upper clamping roller 101 and the lower clamping roller 102 to rotate, and the operator can remove the jammed paper in time when it finds that the work stops, so as to avoid the subsequent large-scale accumulation of paper. The detection of the degree of paper jam can be set. As soon as a paper jam occurs, the detection switch 1105 is triggered, thereby ensuring that a large amount of paper does not accumulate between the upper plate 1101 and the lower plate 1102. In addition, when a paper jam occurs between the upper plate 1101 and the lower plate 1102, the jammed paper pushes up the detection plate 1106, which drives the limit rod 1103 to move synchronously. The return spring 1104 on the limit rod 1103 is compressed. When the paper jam between the upper plate 1101 and the lower plate 1102 is removed, the detection plate 1106 can automatically reset under the restoring force of the return spring 1104. In addition, the detection plate 1106 made of an elastic sheet can also quickly reset under its own restoring force. In other embodiments, the number of limit rod 1103, return spring 1104, and mounting bracket 1107 can also be one.

[0124] In this embodiment, the upper clamping roller 101 and the lower clamping roller 102 can both clamp the paper and convey the paper downstream. In other embodiments, the clamping mechanism can also include a clamping portion for clamping the paper and a conveying portion for conveying the paper, with the functions of clamping and conveying the paper separated. The conveying portion can be located upstream or downstream of the clamping portion. The clamping portion includes two clamping plates that can move closer or farther away from each other, or two pressure plates that can move closer or farther away from each other, or two rods that can move closer or farther away from each other, or a plate and a conveyor belt that can move closer or farther away from each other, or a rod and a conveyor belt that can move closer or farther away from each other, thereby achieving a clamping operation on the paper. The conveying portion can include two rollers rotating in opposite directions, which are only used to convey the paper and cannot clamp the paper to stop conveying. Alternatively, the conveying portion can include a conveyor belt that is only used to convey the paper and cannot clamp the paper to stop conveying. Any clamping structure that can clamp the paper or any conveying structure that can convey the paper can be used.

[0125] With reference to Figures 1 and 2, in the bubble pressing machine of the present invention, the upper clamping wheel 1012 on the upper clamping roller 101 and the lower clamping wheel 1022 on the lower clamping roller 102 can clamp the paper material and convey the paper material to a pair of bubble pressing rollers 201 in the downstream direction. When the paper material passes between the upper clamping roller 101 and the lower clamping roller 102, the width direction of the paper material will be wrinkled and compressed under the action of the upper pressing wheel 1013 on the upper clamping roller 101 and the lower pressing wheel 1023 on the lower clamping roller 102, forming a wavy shape, shortening the size of the paper material in the width direction, realizing pre-shrinkage of the paper material in the width direction, thereby reducing the probability of the paper material being torn when it is subsequently embossed and formed by the pair of bubble pressing rollers 201. The driving shaft of the first driving component 300 rotates forward, and the two bubble pressing rollers 201 rotating in opposite directions can emboss and form the paper material, so that the surface of the formed paper material presents uneven protrusions and pits, thereby forming bubble paper;When loading is required, the driving motor 1200 stops working (such as controlled by a switch), the driving shaft of the first driving component 300 rotates in the opposite direction (such as controlled by a steering switch), the synchronous belt 401 drives the shaft component of the one-way wheel body 402 to rotate, and the shaft component of the one-way wheel body 402 drives the first rocker arm 403 to rotate. The rotation of the first rocker arm 403 drives one end of the connecting rod 404 to move, and the other end of the connecting rod 404 drives a linkage shaft 405 to move. The moving linkage shaft 405 drives a mounting block 406 to slide up and down on a slide 407. Synchronously, the linkage shaft 405 drives a transmission rod 408 to rotate through a second rocker arm 409, and the transmission rod 408 drives another second rocker arm 409 to rotate. The first drive unit 300 stops working when the two ends of the lower clamping roller 102 are balanced and synchronously approach or move away from the upper clamping roller 101. When the mounting block 406 slides up and down on the slide 407, the sensing rod 4081 triggers the detection part 500 above, and the first drive unit 300 stops working. At this time, the distance between the lower clamping roller 102 and the upper clamping roller 101 reaches the maximum. Then, the paper can be easily passed between the upper clamping wheel 1012 on the upper clamping roller 101 and the lower clamping wheel 1022 on the lower clamping roller 102, and the paper can be fed between the two foaming rollers 201. After the loading is completed, the first drive unit 300 stops working when the two ends of the lower clamping roller 102 are balanced and synchronously approach or move away from the upper clamping roller 101. The driving shaft of the first driving component 300 continues to rotate in the opposite direction, and the mounting block 406 slides upward on the slideway 407. When the sensing rod 4081 triggers the detection component 500 below, the first driving component 300 stops working. At this time, the distance between the lower clamping roller 102 and the upper clamping roller 101 reaches the minimum, and the upper clamping wheel 1012 on the upper clamping roller 101 and the lower clamping wheel 1022 on the lower clamping roller 102 clamp the paper. The lower clamping roller 102 is reset, that is, the loading is completed. Subsequently, the driving shaft of the first driving component 300 can be rotated forward (such as by a steering switch) to make the foaming roller 201 emboss the paper. In addition, when the lower clamping roller 102 moves downward, the lower clamping roller 102 moves downward for a certain distance. , the lower part of the wheel body 1021 at the end of the lower clamping roller 102 will press against the arc-shaped groove 601 on the friction block 600. As the lower clamping roller 102 continues to move downward, the pressing force of the wheel body 1021 on the friction block 600 gradually increases. Under the action of the friction block 600, the wheel body 1021 will not rotate during the downward movement, that is, the lower clamping roller 102 and the lower gear 1024 on the lower clamping roller 102 will not rotate during the downward movement, thereby ensuring that when the lower clamping roller 102 returns and moves upward, the lower gear 1024 can smoothly mesh with the upper gear 1014, and there will be no misalignment and inability to mesh between the teeth of the lower gear 1024 and the teeth of the upper gear 1014;When it is necessary to cut off the paper between the clamping mechanism and the bubble pressing mechanism, the driving motor 1200 stops working, that is, the upper clamping roller 101 and the lower clamping roller 102 stop conveying the paper and the upper clamping wheel 1012 on the upper clamping roller 101 and the lower clamping wheel 1022 on the lower clamping roller 102 keep clamping the paper, and the driving shaft of the first driving component 300 continues to rotate forward, that is, the pair of bubble pressing rollers 201 continue to convey the paper downstream, thereby breaking the paper between the clamping mechanism and the bubble pressing mechanism, and the broken paper is sent out by the pair of bubble pressing rollers 201 , the subsequent paper to be processed continues to be conveyed to the pair of bubble pressing rollers 201, and the pair of bubble pressing rollers 201 continue to emboss and shape the new paper, waiting for the next pulling-off operation; in addition, the photoelectric sensor 1003 can detect whether there is paper between the clamping mechanism and the bubble pressing mechanism, ensuring that each time the driving motor 1200 restarts to convey the paper after the paper is broken, the starting end of the paper is located upstream of the detection position of the photoelectric sensor 1003, so that the photoelectric sensor 1003 can re-detect the start of paper conveyance each time. When paper is jammed between the detection plate 1106 and the lower plate 1102, the detection plate 1106 will trigger the detection switch 1105. After the detection switch 1105 is triggered, the upper clamping roller 101 and the lower clamping roller 102 stop rotating, thereby avoiding damage to the drive motor 1200. When the operator finds that the work stops, he can remove the jammed paper in time to avoid a large amount of paper accumulation in the future. The bubble pressing machine of the present invention is simple and convenient for loading paper, and there is no need to thread the paper into the required circular grooves on the two mounting rods little by little. The paper is unlikely to stray from the conveying path or slip through the rings on the mounting rods. Furthermore, no cutter is required to cut the paper, eliminating the risk of injury to personnel during installation, maintenance, or adjustment, significantly improving safety. Furthermore, the clamping mechanism can be driven by a single drive component (drive motor 1200), while the bubble-pressing mechanism can be driven by another drive component (first drive component 300). Compared to existing paper cushioning machines for producing corrugated V-shaped cushioning paper, no additional power source is required.

[0126] In addition, if the bubble press of the present invention only uses the paper breaking operation and does not use the lifting operation of the lower clamping roller 102, the synchronous wheel 2011 does not need to adopt a unidirectional rotating structure, but can adopt a bidirectional rotating structure. If the bubble press of the present invention uses the paper breaking operation + the lifting operation of the lower clamping roller 102, the synchronous wheel 2011 only adopts a unidirectional rotating structure.

[0127] In other embodiments, the driving method of the movement of the mounting block 406 on the slide 407 can also be independent of the driving structure of the foam pressing roller 201, and the following two methods can be used, but are not limited to these two methods.

[0128] The first one:

[0129] The first driving component 300 includes a cylinder, which is arranged on a bracket. The piston rod of the cylinder drives the mounting block 406 to slide in the slideway 407, thereby achieving the approach and separation of the upper pressing wheel 1013 and the lower pressing wheel 1023.

[0130] The second type:

[0131] The first driving component 300 includes a feeding motor, a gear and a rack. The feeding motor is installed on the bracket, and the rack is installed on the mounting block 406 along the length direction of the slide 407. The gear is installed on the output shaft of the feeding motor, and the gear is engaged with the rack. When the mounting block 406 needs to be raised or lowered, the feeding motor drives the gear to rotate, and the gear drives the rack to move. The rack moves synchronously with the mounting block 406, so that the mounting block 406 slides in the slide 407, thereby realizing the approach and distance of the upper pressure wheel 1013 and the lower pressure wheel 1023.

[0132] 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 fall within the scope of protection of the present invention.

Claims

1. Bubble pressing machine, characterized in that, include: A clamping mechanism for clamping the paper and conveying the paper downstream, wherein the upper clamping surface and the lower clamping surface of the clamping mechanism for clamping the paper can move closer to or farther away from each other; and A bubble pressing mechanism for embossing the paper material and conveying the paper material downstream, wherein the bubble pressing mechanism is located downstream of the clamping mechanism; When the paper needs to be cut, the clamping mechanism clamps the paper and stops conveying the paper, and the bubble pressing mechanism continues to convey the paper downstream, and the paper between the clamping mechanism and the bubble pressing mechanism is pulled apart.

2. The bubble pressing machine according to claim 1, characterized in that It also includes a first driving component, and the clamping mechanism includes an upper clamping roller and a lower clamping roller with opposite rotation directions. The upper clamping roller and the lower clamping roller can clamp the paper and transport the paper in the downstream direction. The first driving component drives the lower clamping roller to move closer to or away from the upper clamping roller.

3. The bubble pressing machine according to claim 2, characterized in that: It also includes a transmission mechanism, wherein the bubble pressing mechanism is a pair of bubble pressing rollers distributed up and down with opposite rotation directions. The first driving component drives the bubble pressing rollers to rotate, and the first driving component drives the lower clamping roller to move closer to or away from the upper clamping roller through the transmission mechanism.

4. The bubble pressing machine according to claim 1, characterized in that It also includes a second driving component. The bubble pressing mechanism is a pair of bubble pressing rollers distributed up and down and rotating in opposite directions. The second driving component drives the bubble pressing rollers to rotate.

5. The bubble pressing machine according to claim 3, characterized in that: The transmission mechanism includes a synchronous belt, a one-way wheel body, a first rocker arm, a connecting rod and a mounting member. The synchronous belt loop is arranged on the driving shaft of the first driving component, the shaft body of the foam pressing roller, and the one-way wheel body. The first driving component can drive the foam pressing roller and the one-way wheel body to rotate synchronously. One end of the first rocker arm is fixed on the shaft component of the one-way wheel body, and the other end is hinged to one end of the connecting rod. The other end of the connecting rod is arranged on the mounting member. The end of the lower clamping roller is hinged on the mounting piece, and the other end of the connecting rod can drive the mounting piece to move up and down.

6. The bubble pressing machine according to claim 5, characterized in that: The transmission mechanism further includes a slideway, and the mounting member includes a linkage shaft and a mounting block. One end of the linkage shaft is hinged to the other end of the connecting rod, and the other end of the linkage shaft is arranged on the mounting block and can move laterally on the mounting block. The end of the lower clamping roller is hinged on the mounting block, and the mounting block is slidably arranged on the slideway.

7. The bubble pressing machine according to claim 6, characterized in that The transmission mechanism also includes a transmission rod and two second rocker arms, and the number of the linkage shaft, mounting block, and slideway is two. One end of a linkage shaft is hinged to the other end of the connecting rod, and the other end of the linkage shaft is arranged on one of the mounting blocks and can move laterally on the mounting block. The mounting block is slidably mounted on a slideway. One end of a second rocker is hinged to the linkage shaft, and the other end of the second rocker is fixed to one end of the transmission rod. One end of another second swing rod is fixed on the other end of the transmission rod, one end of another linkage shaft is hinged on the other end of the second swing rod, the other end of the linkage shaft is set on another mounting block and can move laterally on the mounting block, and the mounting block is slidably mounted on another slideway. Both ends of the lower clamping roller are hinged on two mounting blocks respectively.

8. The bubble pressing machine according to claim 2, characterized in that: It also includes a slideway and a mounting block, the lower clamping roller is mounted on the mounting block, and the first driving component drives the mounting block to move on the slideway.

9. The bubble pressing machine according to claim 6 or 8, characterized in that: The slide is provided with a guide rod, the guide rod is sleeved with a spring, the end of the guide rod is inserted into the mounting block, one end of the spring presses against the slide, and the other end of the spring presses against the mounting block.

10. The bubble pressing machine according to claim 8, characterized in that The first driving component includes a cylinder, the piston rod of the cylinder drives the mounting block to slide on the slideway, or It includes a feeding motor, a gear and a rack. The rack is installed on the mounting block along the length direction of the slideway. The gear is installed on the output shaft of the feeding motor. The gear is meshed with the rack.

11. The bubble pressing machine according to claim 7, characterized in that: It also includes two detection parts. The transmission rod is fixed with a sensing rod, and the detection parts are located on the side of the sensing rod. When the sensing rod triggers a detection element, the first driving component stops working, and the lower clamping roller separates from the upper clamping roller so that the paper can pass between the upper and lower clamping rollers without deformation. When the sensing rod triggers another detecting element, the lower clamping roller approaches the upper clamping roller so that the lower clamping roller and the upper clamping roller clamp the paper.

12. The bubble pressing machine according to claim 2, characterized in that: It also includes a friction block and a guide column, and the end of the lower clamping roller is provided with a wheel body. The lower end of the guide post is fixed, the upper end of the guide post is inserted into the friction block, and a buffer spring is sleeved on the guide post. The friction block is located below the wheel body, and an arc-shaped groove capable of accommodating part of the wheel body is provided on the end surface of the friction block close to the wheel body. When the lower clamping roller moves away from the upper clamping roller, part of the wheel body is accommodated in the arc-shaped groove.

13. The bubble pressing machine according to claim 1, characterized in that The clamping mechanism includes a clamping portion for clamping the paper material and a conveying portion for conveying the paper material, wherein the conveying portion is located in the upstream direction or downstream direction of the clamping portion. The clamping part includes two clamping plates, two pressure plates or two rods that can move closer to or farther away from each other, or the clamping part includes a plate body and a conveyor belt that can move closer to or farther away from each other, or the clamping part includes a rod body and a conveyor belt that can move closer to or farther away from each other, The conveying portion includes two rollers rotating in opposite directions, or the conveying portion includes a conveyor belt.

14. The bubble pressing machine according to claim 2, characterized in that: An upper clamping wheel is fixed on the upper clamping roller, and a lower clamping wheel is fixed on the lower clamping roller. The upper clamping wheel and the lower clamping wheel can clamp the paper and transport the paper downstream. The upper clamping wheel and the lower clamping wheel can move closer to or farther away from each other.

15. The bubble pressing machine according to claim 14, characterized in that: The upper clamping roller is fixed with a plurality of upper pressing wheels, and the lower clamping roller is fixed with a plurality of lower pressing wheels. The number of the upper clamping wheels and the number of the lower clamping wheels are both multiple and the same. Each upper clamping wheel can clamp the paper together with a lower clamping wheel and transport the paper to the downstream direction. At least some of the upper pressing wheels and at least some of the lower pressing wheels are staggered in the length direction of the gap between the upper clamping roller and the lower clamping roller. When the upper clamping wheel and the lower clamping wheel are close to each other and clamp the paper, the projections of the upper pressing wheel and the lower pressing wheel in the length direction of the gap between the upper clamping roller and the lower clamping roller overlap. When the upper clamping wheel and the lower clamping wheel are away from each other, the projections of the upper pressing wheel and the lower pressing wheel in the length direction of the gap between the upper clamping roller and the lower clamping roller may not overlap.

16. The bubble pressing machine according to claim 15, characterized in that: When the upper clamping roller and the lower clamping roller are close to each other, the shortest path for the paper formed by the upper pressing wheel and the lower pressing wheel is zigzag. When the upper clamping roller and the lower clamping roller move away from each other, the shortest path for the paper material to pass formed by the upper pressing wheel and the lower pressing wheel is in a straight line.

17. The bubble pressing machine according to claim 15, characterized in that The outer diameter of the upper pressing wheel is larger than the outer diameter of the upper clamping wheel and / or the outer diameter of the lower pressing wheel is larger than the outer diameter of the lower clamping wheel.

18. The bubble pressing machine according to claim 2, characterized in that: It also includes an upper guide plate and a lower guide plate, which are arranged up and down, and the space between the upper guide plate and the lower guide plate includes an entrance part and a paper pre-shrinkage passing part that are interconnected, and the paper pre-shrinkage passing part is located between the upper clamping roller and the lower clamping roller.

19. The bubble pressing machine according to claim 18, characterized in that The height of the paper material pre-shrinkage passage portion is greater than the height of the entrance portion.

20. The bubble pressing machine according to claim 15, characterized in that The thickness of at least one upper pressing wheel between the two outermost upper pressing wheels in the length direction of the upper clamping roller is greater than the thickness of the two outermost upper pressing wheels, or At least one lower pressing wheel between the two outermost lower pressing wheels in the length direction of the lower clamping roller has a thickness greater than that of the two outermost lower pressing wheels.

21. The bubble pressing machine according to claim 15, characterized in that The ratio of the spacing between the upper pressing wheel and the nearest lower pressing wheel in the length direction of the upper clamping roller to the longitudinal dimension of the overlapping portion of the projections of the upper pressing wheel and the nearest lower pressing wheel in the length direction of the upper clamping roller is 0.3-0.

9.

22. The bubble pressing machine according to claim 15, characterized in that The angle between the end face of the upper pressing wheel and the connecting line between the end point of the lower pressing wheel closest to the lower pressing wheel at the bottom of the upper pressing wheel and the end point of the lower pressing wheel closest to the upper pressing wheel is 10-45 degrees.

23. The bubble pressing machine according to claim 15, characterized in that The distance between the two outermost upper pressing wheels is 290-310 mm, or the distance between the two outermost lower pressing wheels is 290-310 mm.

24. The bubble pressing machine according to claim 20, characterized in that There are four upper pressing wheels, and the thickness of the two outermost upper pressing wheels in the length direction of the upper clamping roller is smaller than the thickness of the other two upper pressing wheels.

25. The bubble pressing machine according to claim 24, characterized in that There are six lower pressing wheels, and two lower pressing wheels are evenly spaced on both sides of the two middle upper pressing wheels.

26. The bubble pressing machine according to claim 2, characterized in that The device further comprises a paper material detecting portion for detecting whether a paper material exists, and the paper material detecting portion is located between the clamping mechanism and the bubble pressing mechanism.

27. The bubble pressing machine according to claim 26, characterized in that The paper material detection part includes an upper guide plate, a lower guide plate and a photoelectric sensor. The upper guide plate and the lower guide plate are distributed up and down, and the area between the upper guide plate and the lower 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.

28. The bubble pressing machine according to claim 27, characterized in that The paper material detection unit also includes a photoelectric encoder, a controller and a drive motor. The drive motor drives the upper clamping roller and the lower clamping roller to rotate in opposite directions. 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 drive motor. The controller can calculate the length of the paper material passing between the upper clamping roller and the lower clamping roller.

29. The bubble pressing machine according to claim 1, characterized in that It also includes a paper jam detection mechanism, which is located between the clamping mechanism and the bubble pressing mechanism. The paper jam detection mechanism includes an upper plate, a lower plate, a reset mechanism and a detection switch. The upper plate and the lower plate are distributed up and down. The area between the upper plate and the lower plate is for paper to pass through. A flip detection plate is provided near the upstream direction of the upper plate. The reset mechanism is provided on the detection plate. The detection switch is provided on the side of the detection plate. When paper is jammed 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 upper clamping roller and the lower clamping roller stop rotating. When the paper jam between the detection plate and the lower plate is removed, the reset mechanism drives the detection plate to reset.

30. The bubble pressing machine according to claim 29, characterized in that The reset mechanism includes a limit rod and a reset spring. The limit rod is arranged on the detection plate, and the reset spring is sleeved on the limit rod. One end of the reset spring rests on 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.

31. The bubble pressing machine according to claim 29, characterized in that The detection switch is a proximity switch or a contact switch.

32. The bubble pressing machine according to claim 29, characterized in that The upper plate and the detection plate are integrally formed and made of an elastic sheet.

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