A vacuum mechanical integrated bubble opener

Abstract

The present invention discloses a vacuum mechanical integrated foam opening machine. An upper conveyor belt drive and a vacuum foam opening device are arranged on the upper layer of the frame; a lower conveyor belt drive and a mechanical foam opening device are arranged on the lower layer of the frame, and the mechanical foam opening device is composed of at least one mechanical foam opening unit; the structure of the mechanical foam opening unit is as follows: a pressing cylinder is hinged to the frame, the tail of the rotating frame is hinged to the frame, and the end of the piston rod of the pressing cylinder is hingedly connected to the head of the rotating frame; a plurality of upper rollers are supported at intervals on the rotating frame and are driven by a roller drive device. A plurality of upper rollers are also supported at intervals on the frame below the belt in the conveying area of the lower conveyor belt drive. A rolling foam opening area is formed between the areas of each upper roller and each lower roller. The above structure is simple, compact, convenient to operate, comprehensive in function, and has a wide range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of polyurethane foam production equipment, and in particular to a vacuum mechanical integrated foam opening machine. Background Art

[0002] Polyurethane foam materials, also known as foam sponges, have a very wide range of application fields, mainly used in furniture manufacturing, massage equipment manufacturing, baby stroller manufacturing, decoration, automotive accessories, wall sound absorption and other occasions.

[0003] The polyurethane foam materials obtained by foaming in a mold have a large number of air holes in a tightly closed and complete state inside. The existence of air holes will cause the overall polyurethane foam material to be relatively hard, with small elasticity or almost no elasticity, and poor comfort in use. For polyurethane foam materials used in occasions with requirements for comfort, such as automotive cushions and car seats, it is necessary to use a foam opening machine to break the air holes in the polyurethane foam materials, so as to improve the comfort of the polyurethane foam materials.

[0004] The Chinese invention patent application with the patent number 202022442272.0 discloses a vacuum mechanical foam opening machine. This device uses a vacuum pumping method to break the air holes in the polyurethane foam materials. However, such devices are usually used for polyurethane foam materials with skeletons, such as breaking the foam of seat cushions with skeletons, and have relatively single functions and cannot meet the needs of multiple foam opening operations at the same time. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a vacuum mechanical integrated foam opening machine with comprehensive functions, which can not only perform vacuum pumping and foam breaking treatment on foamed materials with skeletons, but also perform rolling and foam breaking treatment on foamed materials without skeletons.

[0006] To solve the above problems, the technical solution adopted by the present invention is: the described vacuum mechanical integrated foam opening machine includes: a frame, an upper conveyor belt drive is arranged on the upper layer of the frame, and a vacuum foam opening device is installed on the frame at the upper conveyor belt drive. The vacuum foam opening device is composed of at least one vacuum foam opening unit. When the number of vacuum foam opening units is ≥ 2, the vacuum foam opening units are arranged in sequence at intervals along the conveying direction of the upper conveyor belt drive; a lower conveyor belt drive is arranged on the lower layer of the frame, and a mechanical foam opening device is installed on the frame at the lower conveyor belt drive. The mechanical foam opening device is composed of at least one mechanical foam opening unit. When the number of mechanical foam opening units is ≥ 2, the mechanical foam opening units are arranged in sequence at intervals along the conveying direction of the lower conveyor belt drive.

[0007] Among them, the structure of the mechanical foaming device includes: a rotating frame and a downward pressing cylinder. The cylinder body of the downward pressing cylinder is hinged to the frame, the tail of the rotating frame is hinged to the frame, and the end of the piston rod of the downward pressing cylinder is hinged to the head of the rotating frame; on the rotating frame, a number of upper rollers are supported at intervals from the tail of the rotating frame to the head of the rotating frame. Each upper roller is driven by a roller driving device to rotate at the same speed and in the same direction. On the frame below each upper roller, a number of lower rollers are supported at intervals along the conveying direction of the lower conveyor belt. Each lower roller is located below the belt in the conveying area of the lower conveyor belt. The area between each upper roller and each lower roller forms a rolling foaming area. During the process of the piston rod of the downward pressing cylinder extending outwards or retracting inwards, the space of the rolling foaming area is forced to shrink or increase.

[0008] In order to prevent the material output after rolling from generating a reaction force at the moment when the rolling pressure is withdrawn, resulting in the material not staying well on the belt of the lower conveyor belt, in this solution, a guide frame is fixedly arranged at the head of the rotating frame. On the guide frame, a number of guide rollers are supported at intervals from the tail of the guide frame to the head of the guide frame. Each guide roller is in rolling contact with the material on the lower conveyor belt below each guide roller. At this time, the material output after rolling is output through the area between each guide roller and the lower conveyor belt.

[0009] There are various types of roller driving devices. In this solution, a combination of a motor and chain drive is adopted. Specifically: a driving motor is fixedly installed on the rotating frame, a main sprocket is installed on the motor shaft of the driving motor, and a sprocket is fixedly installed on the support rod of each upper roller. Power transmission is completed between the main sprocket and each sprocket through chain drive.

[0010] Among them, the structure of the vacuum bubble-opening device includes: a platform base, a rectangular parallelepiped-shaped vacuum box with an open bottom, and a vacuum pump. The platform base is fixedly installed below the belt in the conveying area of the upper conveyor belt drive. The vacuum box is installed on the frame above the upper conveyor belt drive through a lifting drive device. A vacuum extraction port and a vacuum release port communicating with the inner cavity of the vacuum box are respectively provided on the vacuum box. The vacuum extraction port is connected to the vacuum pump through a vacuum extraction pipeline, and a vacuum release valve is installed on the vacuum release port. A sealing strip is fixedly installed around the open bottom of the vacuum box. A number of first upper and lower through holes are evenly spaced along the conveying direction of the upper conveyor belt drive on the left part of the belt of the upper conveyor belt drive. A number of second upper and lower through holes are evenly spaced along the conveying direction of the upper conveyor belt drive on the right part of the belt of the upper conveyor belt drive. When the vacuum box moves downward through the lifting drive device until the sealing strip tightly presses against the belt of the upper conveyor belt drive, a sealed cavity is formed between the upper surface of the platform base corresponding to each of the first upper and lower through holes, the belt of the upper conveyor belt drive located in the cavity covering area of the vacuum box, and the cavity wall of the vacuum box.

[0011] There are various types of lifting drive devices. The structure of the lifting drive device described in this solution is: the vacuum box is movably installed on the frame through an up and down lifting guiding structure. At least one driving cylinder is installed on the frame. The cylinder bodies of the driving cylinders are fixedly installed on the frame above the vacuum box, and the end parts of the piston rods of the driving cylinders are fixedly connected to the vacuum box. During the process that the piston rods of the driving cylinders synchronously extend downward or retract upward, the vacuum box is pushed to descend or ascend.

[0012] The up-and-down lifting and guiding structure is as follows: At least two guiding sleeves are fixedly arranged on the frame, and guide posts corresponding to the positions and quantities of the guiding sleeves are fixedly arranged on the vacuum box. Each guide post is movably inserted into the corresponding guiding sleeve. The first gear rod arranged horizontally in the left-right direction is movably supported on the tail end of the vacuum box through the first bearing seat group. A first gear is fixedly arranged at each of the left and right ends of the first gear rod. First racks are fixedly arranged on the frame at positions opposite to the first gears respectively. Each first gear meshes with the corresponding first rack to form a first gear-rack transmission. First bearing seats with second gear rods are fixedly arranged on the left and right side edges at the tail end of the vacuum box respectively. The two second gear rods are both arranged horizontally, and the axes of the second gear rods are perpendicular to the axis of the first gear rod. A second gear is fixedly installed on each second gear rod. Second racks are fixedly arranged on the frame at positions opposite to the second gears respectively. Each second gear meshes with the corresponding second rack to form a second gear-rack transmission. The third gear rod arranged horizontally in the left-right direction is movably supported on the head end of the vacuum box through the second bearing seat group. A third gear is fixedly arranged at each of the left and right ends of the third gear rod. Third racks are fixedly arranged on the frame at positions opposite to the third gears respectively. Each third gear meshes with the corresponding third rack to form a third gear-rack transmission. Second bearing seats with fourth gear rods are fixedly arranged on the left and right side edges at the head end of the vacuum box respectively. The two fourth gear rods are parallel to the second gear rods. A fourth gear is fixedly installed on each fourth gear rod. Fourth racks are fixedly arranged on the frame at positions opposite to the fourth gears respectively. Each fourth gear meshes with the corresponding fourth rack to form a fourth gear-rack transmission.

[0013] To facilitate the operator to monitor the situation inside the vacuum box in real time, a viewing window for observing the situation inside the vacuum box is provided on the vacuum box, and a vacuum gauge for measuring the vacuum degree in the inner cavity of the vacuum box is installed on the vacuum box.

[0014] To ensure that the material can exactly stay in the area to be evacuated under the vacuum box, a workpiece sensing opposed photoelectric switch is provided on the frame below the head of the vacuum box. The transmitter and receiver of the workpiece sensing opposed photoelectric switch are respectively arranged on the left and right sides of the frame. The signal line of the workpiece sensing opposed photoelectric switch is connected to the control system, and the driving device for the upper conveyor belt transmission is controlled by the control system.

[0015] The subsequent outputs of the upper conveyor belt drive and the lower conveyor belt drive can share the same conveying device. Specifically: A roller transmission device is inclinedly arranged on the frame at the output end of the upper conveyor belt drive, and the roller transmission device can receive the materials output from the output end of the upper conveyor belt drive; the conveying inclination direction of the roller transmission device is gradually downward from the input end of the roller transmission device to the output end of the roller transmission device; An inclined conveyor belt drive is arranged on the frame at the output end of the lower conveyor belt drive, and the inclined conveyor belt drive can receive the materials output from the output end of the lower conveyor belt drive; the conveying inclination direction of the inclined conveyor belt drive is gradually upward from the input end of the inclined conveyor belt drive to the output end of the inclined conveyor belt drive, and the inclined conveyor belt drive can receive the materials output from the output end of the roller transmission device.

[0016] The beneficial effects of the present invention are: simple and compact structure, convenient operation, comprehensive functions, capable of performing vacuum defoaming treatment on foamed materials with skeletons and rolling defoaming treatment on foamed materials without skeletons, and having a wide range of applications. Brief Description of the Drawings

[0017] Figure 1 is a schematic plan view of a vacuum mechanical integrated foam opening machine according to the present invention.

[0018] Figure 2 is Figure 1 a partially enlarged schematic structural view of part A in

[0019] Figure 3 is a partially perspective schematic structural view of a vacuum mechanical integrated foam opening machine according to the present invention.

[0020] Figure 4 is Figure 3 a partially enlarged schematic structural view of part B in

[0021] Figure 5 is Figure 1 a schematic structural view in the left view direction.

[0022] Figure 6 is Figure 5 a partially enlarged schematic structural view of part C in

[0023] Figure 7 is a partially enlarged schematic structural view of the tail of the vacuum foam opening device.

[0024] Figure 8 is Figure 1 a schematic view of the position between the sealing strip and the belt of the upper conveyor belt drive in the top view direction.

[0025] Figure 9 is Figure 1 a schematic structural view in the top view direction. Detailed Embodiments

[0026] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments. Embodiment 1

[0027] A vacuum mechanical integrated foaming machine described in this embodiment, as Figure 1 shown, includes: a frame 1, an upper conveyor belt drive 2 is provided on the upper layer of the frame 1, a vacuum foaming device is installed on the frame 1 at the upper conveyor belt drive 2, the vacuum foaming device is composed of at least one vacuum foaming unit, and when the number of vacuum foaming units is ≥2, each vacuum foaming unit is arranged in sequence at intervals along the conveying direction of the upper conveyor belt drive 2. A lower conveyor belt drive 3 is provided on the lower layer of the frame 1, and a mechanical foaming device is installed on the frame 1 at the lower conveyor belt drive 3. The mechanical foaming device is composed of at least one mechanical foaming unit, and when the number of mechanical foaming units is ≥2, each mechanical foaming unit is arranged in sequence at intervals along the conveying direction of the lower conveyor belt drive 3.

[0028] For ease of description, the directions of "head" and "tail" in all components of the upper conveyor belt drive 2 and the vacuum foaming device are unified with the conveying direction of the upper conveyor belt drive 2, and the conveying direction of the upper conveyor belt drive 2 is defined as moving from the "tail" to the "head" direction. At this time Figure 1 the direction on the left hand side is the "tail", and the direction on the right hand side is the "head". The "tail end" is Figure 1 the end face on the left hand side in Figure 1 and the "head end" is

[0029] Similarly, for ease of description, the directions of "head" and "tail" in all components of the lower conveyor belt drive 3 and the mechanical foaming device are unified with the conveying direction of the lower conveyor belt drive 3, and the conveying direction of the lower conveyor belt drive 3 is defined as moving from the "tail" to the "head" direction. At this time Figure 1 the direction on the left hand side is the "tail", and the direction on the right hand side is the "head". The "tail end" is Figure 1 the end face on the left hand side in Figure 1 and the "head end" is

[0030] All definitions of "head", "tail", "head end", and "tail end" throughout the text shall be subject to the above definitions.

[0031] In this embodiment, the vacuum foaming unit adopts an existing vacuum foaming unit, and this embodiment designs the structure of the mechanical foaming unit.

[0032] As Figure 1 、 Figure 2, Figure 3 and Figure 4 As shown, the structure of the mechanical foam opening device described in this embodiment includes: a rotating frame 5 and a downward pressing cylinder 4. The cylinder body of the downward pressing cylinder 4 is hinged to the frame 1, the tail of the rotating frame 5 is hinged to the frame 1, and the end of the piston rod 41 of the downward pressing cylinder 4 is hinged to the head of the rotating frame 5. On the rotating frame 5, a number of upper rollers 51 are supported at intervals from the tail of the rotating frame 5 to the head of the rotating frame 5. Each upper roller 51 is driven by a roller driving device to rotate at the same speed and in the same direction. On the frame 1 below each upper roller 51, a number of lower rollers 32 are supported at intervals along the conveying direction of the lower conveyor belt drive 3. Each lower roller 32 is located below the belt 31 in the conveying area of the lower conveyor belt drive 3. The area between each upper roller 51 and each lower roller 32 forms a rolling foam opening area 10. During the process of the piston rod 41 of the downward pressing cylinder 4 extending outwards or retracting inwards, it forces the space of the rolling foam opening area 10 to shrink or increase.

[0033] As Figure 2 and Figure 4 shown, in this embodiment, a guide frame 53 is fixedly arranged at the head of the rotating frame 5. On the guide frame 53, a number of guide rollers 54 are supported at intervals from the tail of the guide frame 5 to the head of the guide frame 5. Each guide roller 54 is in rolling contact with the material on the lower conveyor belt drive 3 below it.

[0034] As Figure 2 shown, the roller driving device described in this embodiment is: a driving motor 52 is fixedly installed on the rotating frame 5, a main sprocket is installed on the motor shaft of the driving motor 52, and a sprocket is fixedly installed on the support rod of each upper roller 51. The power transmission between the main sprocket and each sprocket is completed through chain drive.

[0035] The above mechanical foam opening device is used for foam breaking treatment of materials without a framework such as car seat cushions. Its working principle is as follows: The material is transported to the rolling foam opening area 10 by the lower conveyor belt drive 3. During the process of the piston rod 41 of the downward pressing cylinder 4 extending outwards, it pushes the rotating frame 5 to swing downward around the hinge point between the rotating frame 5 and the frame 1, forcing the space of the rolling foam opening area 10 to gradually shrink, and performing rolling foam breaking treatment on the material in the rolling foam opening area 10, and bursting the air holes in the material - polyurethane foam material through the rolling pressure.

[0036] The structure of the above vacuum mechanical integrated foam opening machine is simple, compact, easy to operate, and has comprehensive functions. It can not only perform vacuum foam breaking treatment on foamed materials with a framework, but also perform rolling foam breaking treatment on foamed materials without a framework, and has a wide range of applications.

[0037] In addition, the subsequent outputs of the upper conveyor belt drive 2 and the lower conveyor belt drive 3 can share the same conveying equipment. Specifically:

[0038] On the frame 1 at the output end of the upper conveyor belt drive 2, a roller transmission device 20 is inclinedly arranged. The roller transmission device 20 can receive the materials output from the output end of the upper conveyor belt drive 2. The conveying inclination direction of the roller transmission device 20 is gradually inclined downward from the input end of the roller transmission device 20 to the output end of the roller transmission device 20.

[0039] On the frame 1 at the output end of the lower conveyor belt drive 3, an inclined conveyor belt drive 30 is arranged. The inclined conveyor belt drive 30 can receive the materials output from the output end of the lower conveyor belt drive 3. The conveying inclination direction of the inclined conveyor belt drive 30 is gradually inclined upward from the input end of the inclined conveyor belt drive 30 to the output end of the inclined conveyor belt drive 30, and the inclined conveyor belt drive 30 can receive the materials output from the output end of the roller transmission device 20. Embodiment 2

[0040] This embodiment is based on Embodiment 1 and improves the existing vacuum bubble-opening device to make the vacuum bubble-breaking more stable and reliable.

[0041] For ease of description, the direction Figure 5 in the left-hand direction is defined as "left", and the direction Figure 5 in the right-hand direction is defined as "right". The definitions of "left" and "right" directions for all components in the upper conveyor belt drive 2 and the vacuum bubble-opening equipment, as well as the definitions of "left" and "right" directions for all components in the lower conveyor belt drive 3 and the mechanical bubble-opening equipment, shall be based on the above definitions.

[0042] Such as Figure 1 、 Figure 5 、 Figure 8 and Figure 9As shown in the figure, the structure of the vacuum foaming device described in this embodiment includes: a platform base 6, a vacuum box 7 with an open bottom, and a vacuum pump. The vacuum box 7 is in the shape of a cuboid. The platform base 6 is fixedly installed below the belt 21 in the conveying area of the upper conveyor belt drive 2. The vacuum box 7 is installed on the frame 1 above the upper conveyor belt drive 2 through a lifting drive device. A vacuum extraction port 71 and a vacuum release port communicating with the inner cavity of the vacuum box 7 are respectively provided on the vacuum box 7. The vacuum extraction port 71 is connected to the vacuum pump through a vacuum extraction pipeline, and a vacuum release valve 72 is installed on the vacuum release port. A sealing strip 73 is fixedly installed along the open bottom of the vacuum box 7. A number of first through holes 22 penetrating up and down are evenly spaced along the conveying direction of the upper conveyor belt drive 2 on the left part of the belt 21 of the upper conveyor belt drive 2. A number of second through holes 23 penetrating up and down are evenly spaced along the conveying direction of the upper conveyor belt drive 2 on the right part of the belt of the upper conveyor belt drive 2. When the vacuum box 7 moves downward through the lifting drive device until the sealing strip 73 is tightly pressed against the belt 21 of the upper conveyor belt drive 2, a sealed cavity is formed between the upper surface of the platform base 6 corresponding to each of the first through holes 22 and each of the second through holes 23 in the cavity covering area of the vacuum box 7, the belt 21 of the upper conveyor belt drive 2 in the cavity covering area of the vacuum box 7, and the cavity wall of the vacuum box 7. After the vacuum pump is started, the suction force generated by vacuum extraction sucks the upper surface of the platform base 6 corresponding to each of the first through holes 22 and each of the second through holes 23 in the cavity covering area of the vacuum box 7, and the belt 21 of the upper conveyor belt drive 2 in the cavity covering area of the vacuum box 7.

[0043] In order to ensure that the material can just stay in the area to be evacuated below the vacuum box 7, a workpiece sensing opposed switch 13 is provided on the frame 1 below the head of the vacuum box 7. The transmitter and receiver of the workpiece sensing opposed switch 13 are respectively arranged on the left and right sides of the frame 1. The signal line of the workpiece sensing opposed switch 13 is connected to the control system. The drive device of the upper conveyor belt drive 2 is controlled by the control system, and the control system can control the operation of the upper conveyor belt drive 2 according to the signal fed back by the workpiece sensing opposed switch 13.

[0044] In order to facilitate the operator to monitor the situation inside the vacuum box in real time, a viewing window 75 is provided on the vacuum box 7, and a vacuum gauge 76 for measuring the vacuum degree in the inner cavity of the vacuum box 7 is installed on the vacuum box 7.

[0045] Such as Figure 1 、 Figure 3 and Figure 5As shown in the figure, the structure of the lifting drive device in this embodiment is as follows: The vacuum box 7 is movably installed on the frame 1 through an up-and-down lifting guide structure. At least one driving cylinder 12 is installed on the frame 1. The cylinder bodies of the driving cylinders 12 are respectively fixedly installed on the frame 1 above the vacuum box 7, and the piston rod ends of the driving cylinders 12 are respectively fixedly connected to the vacuum box 7. During the process of the piston rod of the driving cylinder 12 extending downward or retracting upward, the vacuum box 7 is pushed to descend or ascend.

[0046] As Figure 3 , Figure 5 and Figure 7 As shown in the figure, the up-and-down lifting guide structure in this embodiment is as follows: At least two guide sleeves 11 are fixedly arranged on the frame 1, and guide posts 74 corresponding to the positions and quantities of the guide sleeves 11 are fixedly arranged on the vacuum box 7. Each guide post 74 is movably inserted into the corresponding guide sleeve 11.

[0047] During the lifting process of the vacuum box 7, due to the moving relationship between each guide post 74 and the corresponding guide sleeve, there will inevitably be a certain moving gap between the two. The existence of the moving gap may cause problems that when the vacuum box 7 descends until the sealing strip 73 is closely pressed against the belt 21 of the upper conveyor belt drive 2, there may be poor sealing performance in some areas when the sealing strip 73 contacts the belt 21 of the upper conveyor belt drive 2 everywhere, thus affecting the efficiency of vacuum pumping and bubble bursting. To ensure that after the vacuum box 7 descends to the specified position, the contact areas between the sealing strip 73 and the belt 21 of the upper conveyor belt drive 2 can be well sealed everywhere and improve the efficiency of vacuum pumping and bubble bursting, the following design is made in this embodiment:

[0048] As Figure 6 As shown in the figure, the first gear rod 81 placed horizontally in the left-right direction is movably supported at the tail end of the vacuum box 7 through the first bearing seat group 82. A first gear 83 is fixedly arranged at each of the left and right ends of the first gear rod 81. First racks 84 are respectively fixedly arranged on the frame 1 opposite to the positions of the first gears 83. Each first gear 83 meshes with the corresponding first rack 84 to form a first gear-rack transmission. First bearing seats with second gear rods are respectively fixedly arranged on the left and right side edges at the tail end of the vacuum box 7. The two second gear rods are both placed horizontally, and the axes of each second gear rod are perpendicular to the axis of the first gear rod 81. A second gear 85 is fixedly installed on each second gear rod. Second racks 86 are respectively fixedly arranged on the frame 1 opposite to the positions of the second gears 85. Each second gear 85 meshes with the corresponding second rack 86 to form a second gear-rack transmission.

[0049] As Figure 7As shown in the figure, the third gear rod 91 arranged horizontally in the left-right direction is movably supported on the head end of the vacuum box 7 through the second bearing seat group 92. A third gear 93 is fixedly arranged at each of the left and right ends of the third gear rod 91. Third racks 94 are fixedly arranged on the frame 1 at positions corresponding to the third gears 93 respectively. Each third gear 93 meshes with the corresponding third rack 94 to form a third gear-rack transmission. Second bearing seats 95 with fourth gear rods 96 are fixedly arranged on the left and right side edges of the head end of the vacuum box 7 respectively. The two fourth gear rods 96 are both parallel to the second gear rod. A fourth gear 97 is fixedly installed on each fourth gear rod 96. Fourth racks 98 are fixedly arranged on the frame 1 at positions corresponding to the fourth gears 97 respectively. Each fourth gear 97 meshes with the corresponding fourth rack 98 to form a fourth gear-rack transmission.

[0050] The above are only the preferred embodiments of the present invention, and do not impose any other form of limitation on the present invention. Any modification or equivalent change made according to the technical essence of the present invention still belongs to the scope of protection required by the present invention.

Claims

1. A vacuum-mechanical integrated foam opening machine, comprising: a frame, characterized in that: an upper conveyor belt drive is provided on the upper layer of the frame, and a vacuum foam opening device is installed on the frame at the upper conveyor belt drive. The vacuum foam opening device is composed of at least one vacuum foam opening unit. When the number of vacuum foam opening units is ≥2, the vacuum foam opening units are arranged in sequence at intervals along the conveying direction of the upper conveyor belt drive; a lower conveyor belt drive is provided on the lower layer of the frame, and a mechanical foam opening device is installed on the frame at the lower conveyor belt drive. The mechanical foam opening device is composed of at least one mechanical foam opening unit. When the number of mechanical foam opening units is ≥2, the mechanical foam opening units are arranged in sequence at intervals along the conveying direction of the lower conveyor belt drive; The structure of the mechanical foam opening unit includes: a rotating frame and a pressing cylinder. The cylinder body of the pressing cylinder is hinged to the frame, the tail of the rotating frame is hinged to the frame, and the end of the piston rod of the pressing cylinder is hinged to the head of the rotating frame; on the rotating frame, a number of upper rollers are supported at intervals from the tail of the rotating frame to the head of the rotating frame. Each upper roller is driven by a roller drive device to rotate at the same speed and in the same direction. On the frame below each upper roller, a number of lower rollers are supported at intervals along the conveying direction of the lower conveyor belt drive. Each lower roller is located below the belt in the conveying area of the lower conveyor belt drive. A rolling foam opening area is formed between each upper roller and each lower roller. When the piston rod of the pressing cylinder extends outwards or retracts inwards, the space in the rolling foam opening area is forced to shrink or increase; The roller drive device is: a drive motor is fixedly installed on the rotating frame, a main sprocket is installed on the motor shaft of the drive motor, and a sprocket is fixedly installed on the support rod of each upper roller. Power transmission is completed between the main sprocket and each sprocket through chain drive; The structure of the vacuum foam opening unit includes: a platform seat, a rectangular parallelepiped-shaped vacuum box with an open bottom, and a vacuum pump. The platform seat is fixedly installed below the belt in the conveying area of the upper conveyor belt drive. The vacuum box is installed on the frame above the upper conveyor belt drive through a lifting drive device. A vacuum pumping port and a vacuum release port communicating with the inner cavity of the vacuum box are respectively provided on the vacuum box. The vacuum pumping port is connected to the vacuum pump through a vacuum pumping pipeline, and a vacuum release valve is installed on the vacuum release port; a sealing strip is fixedly installed along the open bottom of the vacuum box. A number of first upper and lower through holes are evenly spaced along the conveying direction on the left part of the belt of the upper conveyor belt drive. A number of second upper and lower through holes are evenly spaced along the conveying direction on the right part of the belt of the upper conveyor belt drive. When the vacuum box moves downward through the lifting drive device until the sealing strip tightly presses on the belt of the upper conveyor belt drive, a sealed cavity is formed between the upper surface of the platform seat corresponding to each first upper and lower through hole, the belt of the upper conveyor belt drive in the cavity covering area of the vacuum box, and the cavity wall of the vacuum box.

2. A vacuum mechanical integrated bubble opener according to claim 1, characterized in that: A guide frame is fixedly arranged at the head of the rotating frame. On the guide frame, a number of guide rollers are supported at intervals from the tail of the guide frame to the head direction of the guide frame. Each guide roller is in rolling contact with the material on the lower conveyor belt drive located below each guide roller.

3. A vacuum mechanical integrated bubble opener according to claim 1, characterized in that: The structure of the lifting drive device is: the vacuum box is movably installed on the frame through the up and down lifting guide structure. At least one driving cylinder is installed on the frame. The cylinder bodies of each driving cylinder are fixedly installed on the frame above the vacuum box. The end parts of the piston rods of each driving cylinder are fixedly connected to the vacuum box. During the process that the piston rods of each driving cylinder synchronously extend downward or retract upward, the vacuum box is pushed to descend or ascend.

4. A vacuum mechanical integrated bubble opener according to claim 3, characterized in that: The up and down lifting guide structure is: at least two guide sleeves are fixedly arranged on the frame. Guide posts corresponding to the positions and quantities of the guide sleeves are fixedly arranged on the vacuum box. Each guide post is movably inserted into the corresponding guide sleeve; the first gear rod placed horizontally in the left and right direction is movably supported on the tail end of the vacuum box through the first bearing seat group. A first gear is fixedly arranged at each of the left and right ends of the first gear rod. First racks are fixedly arranged on the frame at positions opposite to each first gear. Each first gear meshes with the corresponding first rack to form a first gear rack transmission; on the left and right side edges at the tail end of the vacuum box, first bearing seats with second gear rods are fixedly arranged respectively. The two second gear rods are both placed horizontally, and the axes of each second gear rod are perpendicular to the axis of the first gear rod. A second gear is fixedly installed on each second gear rod. Second racks are fixedly arranged on the frame at positions opposite to each second gear. Each second gear meshes with the corresponding second rack to form a second gear rack transmission; the third gear rod placed horizontally in the left and right direction is movably supported on the head end of the vacuum box through the second bearing seat group. A third gear is fixedly arranged at each of the left and right ends of the third gear rod. Third racks are fixedly arranged on the frame at positions opposite to each third gear. Each third gear meshes with the corresponding third rack to form a third gear rack transmission; on the left and right side edges at the head end of the vacuum box, second bearing seats with fourth gear rods are fixedly arranged respectively. The two fourth gear rods are parallel to the second gear rods. A fourth gear is fixedly installed on each fourth gear rod. Fourth racks are fixedly arranged on the frame at positions opposite to each fourth gear. Each fourth gear meshes with the corresponding fourth rack to form a fourth gear rack transmission.

5. A vacuum mechanical integrated bubble opener according to claim 1, characterized in that: A window for observing the situation inside the vacuum box is arranged on the vacuum box, and a vacuum gauge for measuring the vacuum degree in the inner cavity of the vacuum box is installed on the vacuum box.

6. A vacuum mechanical integrated bubble opener according to claim 1, characterized in that: A workpiece sensing opposed switch is provided on the frame below the head of the vacuum chamber. The transmitter and receiver of the workpiece sensing opposed switch are respectively arranged on the left and right sides of the frame. The signal line of the workpiece sensing opposed switch is connected to the control system, and the driving device of the upper conveyor belt drive is controlled by the control system.

7. A vacuum mechanical integrated bubble opening machine according to claim 1, characterized in that: A roller transmission device is obliquely arranged on the frame at the output end of the upper conveyor belt drive. The roller transmission device can receive the materials output from the output end of the upper conveyor belt drive. The conveying inclination direction of the roller transmission device is gradually inclined downward from the input end of the roller transmission device to the output end of the roller transmission device. An inclined conveyor belt drive is provided on the frame at the output end of the lower conveyor belt drive. The inclined conveyor belt drive can receive the materials output from the output end of the lower conveyor belt drive. The conveying inclination direction of the inclined conveyor belt drive is gradually inclined upward from the input end of the inclined conveyor belt drive to the output end of the inclined conveyor belt drive, and the inclined conveyor belt drive can receive the materials output from the output end of the roller transmission device.

Images