Discharging anti-sticking structure of air cushion machine and air cushion machine

Abstract

The utility model discloses an air cushion machine discharging anti-sticking structure and an air cushion machine, the air cushion machine discharging anti-sticking structure comprises a heating wheel, a wheel body and a pressing and folding part, the pressing and folding part is arranged on the heating wheel and / or the wheel body, and the pressing and folding part can press and fold a film material between the heating wheel and the wheel body so as to form a folded angle shape on the film material. The discharging anti-sticking structure of the air cushion machine is installed on the air cushion machine, the heating wheel and the wheel body are jointly pressed at an inflation inlet of a film material for pressing and heat sealing, and the film material is pulled to be conveyed and discharged in the downstream direction at the same time; the pressing and folding part can press and fold the membrane material between the heating wheel and the wheel body, so that the edge of the membrane material is pressed downwards to form a folded angle, the folded angle is a reinforcing rib of the planar membrane material, the membrane material can be bent into an arc shape when the membrane material is wound by the heating wheel, and due to the arrangement of the reinforcing rib on the membrane material, the strength of the membrane material can be improved; the possibility that the film material is bent by winding is greatly reduced, so that the film material is prevented from being wound by the heating wheel.

Description

Technical Field

[0001] The utility model relates to the field of buffer air cushion manufacturing, in particular to an air cushion machine discharging anti-sticking structure and an air cushion machine. Background Art

[0002] In logistics transportation, some fragile and scratch-prone items need to be protected to reduce the probability of damage. Currently, paper pads or air cushions are placed in logistics boxes or express boxes to fill and lay around the items to achieve shock absorption and impact resistance.

[0003] The air cushion machine is a device used to produce cushioning air cushions. It produces three-dimensional cushioning air cushions connected to each other by filling gas into the film material and heat-sealing it through a heating structure.

[0004] The heat sealing structure in the air cushion machine generally adopts a heating wheel with a heating wire to heat the opening of the film material to seal it. In the process of heating and heat sealing the film material by the heating wheel, the melted part of the film material has a certain viscosity, so that the film material will be rolled up by the heating wheel, thereby increasing the heating time of the film material, resulting in excessive heating and damage to the film material. The film material may also be stuck and accumulated, so that the subsequent film material will also be damaged by excessive heating, and the film material cannot be discharged normally. On the one hand, it causes waste of film material, and on the other hand, it reduces the efficiency of film production. At the same time, the accumulation and extrusion of film material may also increase the probability of equipment failure.

[0005] Therefore, how to prevent the heat-sealed film from being rolled up is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] The utility model aims to provide an air cushion machine discharging anti-sticking structure and an air cushion machine, so as to solve at least one of the above-mentioned technical problems.

[0007] According to one aspect of the utility model, an air cushion machine discharge anti-sticking structure is provided, comprising:

[0008] A rotatable heating wheel for heat-sealing the film material;

[0009] A rotatable wheel body for pressing and heat-sealing the film material together with the heating wheel; and

[0010] The folding part is arranged on the heating wheel and / or the wheel body, and can fold the film material between the heating wheel and the wheel body so as to form an angle shape on the film material.

[0011] The anti-sticking structure of the air cushion machine discharging material of the utility model is installed on the air cushion machine. After the air cushion machine fills the air chamber on the film material with gas, the heating wheel and the wheel body are pressed together at the inflation port of the film material to perform pressing and heat sealing and simultaneously pull the film material to be transported and discharged in the downstream direction. When the heating wheel and the wheel body are pressing and heat sealing the film material, the folding part can fold the film material between the heating wheel and the wheel body so that the edge of the film material is pressed downward to form a fold angle, and the fold angle is the reinforcing rib of the flat film material. Since the film material will bend into an arc shape when being rolled by the heating wheel, the setting of the reinforcing rib (fold angle shape) on the film material can improve the strength of the film material and greatly reduce the possibility of the film material being bent by being rolled, so as to resist the film material being rolled by the heating wheel.

[0012] In some embodiments, the folding portion can be provided at the end of the heating wheel, and a circle of flanges is provided on the folding portion along the circumference, and the flanges protrude from the circumferential surface of the heating wheel. Thus, the folding portion can rotate synchronously and coaxially with the heating wheel, and when the heating wheel and the wheel body press and heat-seal the film material, the circle of flanges on the folding portion will press down the edge of the film material to form an angle shape on the film material, and the formed angle is the reinforcing rib of the flat film material. The reinforcing ribs (angle shape) on the film material can increase the strength of the film material, reduce the possibility of the film material being bent by the tape, and thus resist the tape.

[0013] In some embodiments, a circle of bosses may be provided at the end of the heating wheel along the circumferential direction, and a circle of steps matching the bosses may be provided at the end of the wheel body along the circumferential direction.

[0014] When the heating wheel and the wheel body perform compression heat sealing on the film material, the boss is accommodated in the step, and the boss and the step form a folding portion.

[0015] Therefore, when the heating wheel and the wheel body press and heat seal the film material, the matching position of the boss on the heating wheel and the step on the wheel body will form an angle shape on the film material. The formed angle is the reinforcing rib of the flat film material. The reinforcing rib (angle shape) on the film material can increase the strength of the film material and reduce the possibility of the film material being bent by the winding tape, thereby resisting the winding tape.

[0016] In some embodiments, the projections of the flange and the wheel body in the axial direction of the wheel body may overlap, thereby ensuring that under the downward pressure of the flange, a folded shape is formed on the film material, that is, a reinforcing rib is formed on the film material.

[0017] In some embodiments, an upper shield may be further included, the upper shield being arranged on the heating wheel, and an extension portion being arranged on the upper shield for limiting the discharge direction of the film material. Thus, the upper shield can not only protect the heating wheel, but also prevent the operator from being injured by contact with the heating wheel, and the extension portion on the upper shield can limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward, reduce the possibility of the film material being bent by the heating wheel, and the extension portion on the upper shield can resist the tendency of the film material being rolled upward.

[0018] In some embodiments, a lower guard plate may be further included. The lower guard plate is arranged on a mounting shaft for mounting the wheel body. The wheel body is rotatably connected to the mounting shaft. A limiter for limiting the discharge direction of the film material is arranged on the lower guard plate. Thus, the lower guard plate can not only protect the wheel body, but also the limiter on the lower guard plate can limit the discharge direction of the film material, guide the film material after inflation and heat sealing to discharge forward, reduce the possibility of the film material being bent by the wheel body, and the limiter on the lower guard plate can resist the tendency of the film material being rolled downward.

[0019] In some embodiments, an upper guide bar may be further included, and at least one first annular groove is provided on the heating wheel along the circumference, and the upper guide bar extends into the first annular groove on the heating wheel, and the upper guide bar is located in the downstream direction of the heating wheel. Thus, the upper guide bar can limit the discharge direction of the film material, guide the film material after inflation and heat sealing to discharge forward, guide the film material to leave the heating wheel, and prevent the film material from adhering to the heating wheel.

[0020] In some embodiments, a lower guide bar may be further included, and at least one second annular groove is provided on the wheel body along the circumferential direction, and the lower guide bar extends into the second annular groove on the wheel body, and the lower guide bar is located in the downstream direction of the wheel body. Thus, the lower guide bar can limit the discharge direction of the film material, guide the film material after inflation and heat sealing to discharge forward, guide the film material to leave the wheel body, and prevent the film material from adhering to the wheel body.

[0021] In some embodiments, the side of the flange may be inclined, so that when the film is pressed down by the flange to form an angled shape, the inclined design of the side of the flange can prevent the side of the film close to the air cushion machine from rising too high, which would affect the forming quality of the cushioning air cushion.

[0022] In some embodiments, the extension portion can be formed by extending one side of the upper shield close to the wheel body toward the downstream direction of the film material conveying, and the side of the upper shield close to the wheel body can be inclined. Thus, the extension portion can further guide the film material after inflation and heat sealing to be discharged forward, further reducing the possibility of the film material being bent by the heating wheel belt.

[0023] According to another aspect of the utility model, an air cushion machine is provided, comprising an air cushion machine body and an air cushion machine discharge anti-sticking structure, wherein the heating wheel and the wheel body are both arranged on the air cushion machine body.

[0024] The air cushion machine of the utility model, after the air is filled into the air chamber on the film material, the heating wheel and the wheel body are pressed together at the inflation port of the film material to perform pressing and heat sealing and at the same time pull the film material to the downstream direction for delivery and discharge; when the heating wheel and the wheel body are pressing and heat sealing the film material, the folding part can fold the film material between the heating wheel and the wheel body so that the edge of the film material is pressed downward to form a fold angle, which is the reinforcing rib of the flat film material; because the film material is bent into an arc shape when being rolled by the heating wheel, the arrangement of the reinforcing ribs (fold angle shape) on the film material can improve the strength of the film material and greatly reduce the possibility of the film material being bent by being rolled, so as to resist the film material being rolled by the heating wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the anti-sticking structure of the air cushion machine according to one embodiment of the utility model;

[0026] Figure 2 for Figure 1 The schematic diagram of the structure of the air cushion machine discharge anti-sticking structure along the A direction is shown;

[0027] Figure 3 for Figure 2 The enlarged structural diagram of point B in the anti-sticking structure of the air cushion machine shown;

[0028] Figure 4 for Figure 1 The schematic diagram of the structure of the heating wheel and the folding part in the anti-sticking structure of the air cushion machine shown;

[0029] Figure 5 This is a structural schematic diagram of an air cushion machine discharge anti-sticking structure according to another embodiment of the utility model;

[0030] Figure 6 This is a structural schematic diagram of an air cushion machine discharge anti-sticking structure according to another embodiment of the utility model. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0033] Embodiment 1:

[0034] Figures 1 to 4 The structure of the anti-sticking structure of the air cushion machine discharge according to one embodiment of the utility model is schematically shown.

[0035] refer to Figures 1 to 4 , an air cushion machine discharge anti-sticking structure, comprising a heating wheel 1, a wheel body 2 and a folding portion 3. In addition, the air cushion machine discharge anti-sticking structure may also include an upper guard 4 and a lower guard plate 5.

[0036] refer to Figure 1 The heating wheel 1 is fixed on a driving shaft 103, and the driving shaft 103 rotates under the driving action of the driving component on the air cushion machine, thereby realizing the rotation of the heating wheel 1. The heating wheel 1 is provided with a heating wire, and the rotating heating wheel 1 can heat-seal the film material.

[0037] refer to Figure 1 and Figure 2 The wheel body 2 is mounted on a mounting shaft 21, and the mounting shaft 21 is mounted on the air cushion machine. The wheel body 2 can be mounted on the mounting shaft 21 through a bearing component, and the wheel body 2 can rotate freely on the mounting shaft 21. The wheel body 2 is located below the heating wheel 1, and the wheel body 2 and the heating wheel 1 can jointly press and heat-seal the film material. After the air cushion machine fills the air chamber on the film material with gas, the edge of the film material passes between the heating wheel 1 and the wheel body 2, and the heating wheel 1 and the wheel body 2 are pressed together at the inflation port of the film material for pressing and heat-sealing, and at the same time, the film material is pulled downstream ( Figure 1 The material is conveyed in the opposite direction of the middle direction A), and the wheel body 2 is generally a rubber wheel.

[0038] The folding part 3 can fold the film material between the heating wheel 1 and the wheel body 2 to form an angle shape on the film material. Figure 1 , Figure 3 and Figure 4The folding portion 3 is arranged coaxially with the heating wheel 1, and the folding portion 3 rotates synchronously with the heating wheel 1. A circle of flanges 31 are formed on the folding portion 3 along the circumferential direction, and the flanges 31 protrude from the circumferential surface of the heating wheel 1, that is, the radius of the circle of flanges 31 is greater than the radius of the heating wheel 1. In this way, the folding portion 3 can rotate coaxially with the heating wheel 1 synchronously. When the heating wheel 1 and the wheel body 2 press and heat-seal the film material, the circle of flanges 31 on the folding portion 3 will press down the edge of the film material to form an angle shape on the film material. The formed angle is the reinforcing rib of the plane film material. The reinforcing ribs (angle shape) on the film material can improve the strength of the film material and reduce the possibility of the film material being bent by the heating wheel 1 and / or the wheel body 2, thereby resisting the winding. In other embodiments, the folding portion 3 may also be provided on a non-end portion of the heating wheel 1, such as on the outer periphery of the heating wheel 1 close to the end portion of the heating wheel 1. It is sufficient to ensure that when the heating wheel 1 and the wheel body 2 are pressed and heat-sealed on the film material, the folding portion 3 can press down the edge of the film material to form an angle shape, i.e., a reinforcing rib, on the film material.

[0039] refer to Figure 3 The projection of the flange 31 and the wheel body 2 in the axial direction of the wheel body 2 overlaps, that is, the lowest point of the flange 31 is lower than the extrusion contact surface between the heating wheel 1 and the wheel body 2. In this way, it can be ensured that under the downward pressure of the flange 31, an angle shape will be formed on the membrane material, that is, reinforcing ribs will be formed on the membrane material.

[0040] refer to Figure 3 The left side of the flange 31 is inclined. In this way, when the membrane material is pressed down by the flange 31 to form an angled shape, the inclined design of the side of the flange 31 can prevent the side of the membrane material close to the air cushion machine from being lifted too high, affecting the forming quality of the cushioning air cushion.

[0041] In other embodiments, the folding portion 3 can also be installed on the wheel body 2; in other embodiments, the folding portion 3 can be installed on the ends of the heating wheel 1 and the wheel body 2, as long as the flange 31 on the folding portion 3 installed on the heating wheel 1 and the flange 31 on the folding portion 3 installed on the wheel body 2 are staggered in the axial direction of the heating wheel 1.

[0042] refer to Figures 1 to 3 The upper shield 4 is disposed on the heating wheel 1. Specifically, the upper shield 4 can be installed on the air cushion machine and cover the heating wheel 1. The upper shield 4 can protect the heating wheel 1 and also prevent the operator from contacting the heating wheel 1 and getting injured.

[0043] refer to Figure 1An extension portion 41 for limiting the discharge direction of the film material is formed on the upper guard 4. The extension portion 41 is formed by extending one side of the upper guard 4 close to the wheel body 2 toward the downstream direction of the film material conveying. The extension portion 41 is a pointed corner of the longitudinal side plate of the upper guard 4 facing the downstream direction of the film material conveying. One side of the upper guard 4 close to the wheel body 2 is inclined, that is, the extension portion 41 has a tendency to extend obliquely downward. In this way, the extension portion 41 on the upper guard 4 can limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward (downstream direction of the film material conveying), reduce the possibility of the film material being bent by the heating wheel 1, and the extension portion 41 on the upper guard 4 can resist the tendency of the film material being rolled upward.

[0044] refer to Figure 1 and Figure 2 The lower guard plate 5 is fixed on the mounting shaft 21 for mounting the wheel body 2. The lower guard plate 5 does not rotate with the wheel body 2. A limiting portion 51 for limiting the discharge direction of the film material is formed on the lower guard plate 5. The limiting portion 51 is located at the lower position in the downstream direction of the extension portion 41. The limiting portion 51 is the upper corner position of the lower guard plate 5 in the downstream direction of the film material conveying. The lower guard plate 5 can not only protect the wheel body 2, but the limiting portion 51 on the lower guard plate 5 can also limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward, and reduce the possibility of the film material being bent by the wheel body 2. The limiting portion 51 on the lower guard plate 5 can resist the tendency of the film material being rolled downward.

[0045] refer to Figure 1 A gap is left between one side of the upper guard 4 close to the wheel body 2 and the top of the lower guard plate 5 for the membrane material to pass through.

[0046] refer to Figure 1 The air cushion machine includes an air cushion machine body 10 and the above-mentioned air cushion machine discharge anti-sticking structure, the heating wheel 1 is fixed on the driving shaft 103, the driving shaft 103 is installed on the air cushion machine body 10, the driving component in the air cushion machine body 10 can drive the driving shaft 103 to rotate, the driving shaft 103 drives the heating wheel 1 to rotate, and the wheel body 2 is installed on the installation shaft 21 ( Figure 2As shown in the figure, the mounting shaft 21 is mounted on the air cushion machine body 10, and the wheel body 2 is mounted on the mounting shaft 21 through a bearing component. The wheel body 2 can rotate freely on the mounting shaft 21, and the wheel body 2 is located below the heating wheel 1. The wheel body 2 and the heating wheel 1 can jointly perform pressing and heat-sealing on the film material. The roller 101 on the air cushion machine body 10 is used to carry the rolled original film roll. The film material sent out of the original film roll is inflated by the inflation nozzle 102 on the air cushion machine body 10 and then clamped by the heating wheel 1 and the wheel body 2. The heating wheel 1 and the wheel body 2 are jointly pressed at the inflation port of the film material for pressing and heat-sealing and at the same time pull the film material to be transported in the downstream direction. When the heating wheel 1 and the wheel body 2 are pressing and heat-sealing the film material, a circle of flanges 31 on the folding part 3 folds the film material between the heating wheel 1 and the wheel body 2, so that the edge of the film material is pressed down to form a fold angle, thereby making the film material A folded angle shape is formed, and the formed folded angle is the reinforcing rib of the flat film material. Since the film material will bend into an arc shape when being rolled by the heated wheel 1, the setting of the reinforcing rib (folded angle shape) on the film material can improve the strength of the film material, reduce the possibility of the film material being bent by the heated wheel 1 and / or the wheel body 2, so as to resist the film material being rolled by the heated wheel 1; at the same time, the extension portion 41 on the upper protective cover 4 can also limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward (downstream direction of film material transportation), reduce the possibility of the film material being bent by the heated wheel 1, and resist the tendency of the film material being rolled upward. The limiting portion 51 on the lower guard plate 5 can also limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward (downstream direction of film material transportation), reduce the possibility of the film material being bent by the wheel body 2, and resist the tendency of the film material being rolled downward.

[0047] Embodiment 2:

[0048] Figure 5 The structure of the anti-sticking structure of the air cushion machine discharge according to another embodiment of the utility model is schematically shown.

[0049] refer to Figure 5 , an air cushion machine discharge anti-sticking structure, comprising a heating wheel 1, a wheel body 2 and a folding portion 3. In addition, the air cushion machine discharge anti-sticking structure may further include an upper guide bar 6 and a lower guide bar 7.

[0050] In this embodiment, the installation method of the heating wheel 1 and the wheel body 2 is the same as that of the first embodiment, and will not be repeated here.

[0051] The difference between this embodiment and the first embodiment is that in this embodiment, the upper guard 4 and the lower guard plate 5 are not installed, but the upper guide bar 6 and the lower guide bar 7 are installed. Of course, the upper guide bar 6 and the lower guide bar 7 can also be installed on the basis of the upper guard 4 and the lower guard plate 5.

[0052] refer to Figure 5At least one first annular groove 11 is formed on the heating wheel 1 along the circumferential direction. In this embodiment, the number of the first annular groove 11 is one. The left end of the upper guide strip 6 is fixed on the upper mounting plate 61 (it can also be integrally formed), and the right end of the upper guide strip 6 extends into the first annular groove 11 on the heating wheel 1. The right end of the upper guide strip 6 does not contact the heating wheel 1 to ensure that it does not affect the normal rotation of the heating wheel 1. The upper mounting plate 61 can be fixed on the air cushion machine. The upper guide strip 6 is located in the downstream direction of the heating wheel 1. The upper guide strip 6 can limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward, and guide the film material to leave the heating wheel 1 to prevent the film material from adhering to the heating wheel 1. In other embodiments, the number of first annular grooves 11 can be adjusted according to their width dimensions. If the width of the first annular groove 11 is narrow, multiple first annular grooves 11 can be provided on the heating wheel 1. If the width of the first annular groove 11 is wide, only one first annular groove 11 is provided on the heating wheel 1. The number of upper guide strips 6 is the same as the number of first annular grooves 11, and one upper guide strip 6 extends into one first annular groove 11.

[0053] refer to Figure 5 At least one second annular groove 22 is formed on the wheel body 2 along the circumferential direction. In this embodiment, the number of the second annular groove 22 is one. The left end of the lower guide strip 7 is fixed on the lower mounting plate 71 (it can also be integrally formed), and the right end of the lower guide strip 7 extends into the second annular groove 22 on the wheel body 2. The right end of the lower guide strip 7 does not contact the wheel body 2 to ensure that the normal rotation of the wheel body 2 is not affected. The lower mounting plate 71 can be fixed to the air cushion machine. The lower guide strip 7 is located in the downstream direction of the wheel body 2. The lower guide strip 7 is located below the upper guide strip 6. The heat-sealed film material passes through the gap between the upper guide strip 6 and the lower guide strip 7. The lower guide strip 7 can limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward, and guide the film material to leave the wheel body 2 to prevent the film material from adhering to the wheel body 2. In other embodiments, the number of the second annular grooves 22 can be adjusted according to their width dimensions. If the width of the second annular groove 22 is narrow, multiple second annular grooves 22 can be set on the wheel body 2. If the width of the second annular groove 22 is wide, only one second annular groove 22 can be set on the wheel body 2. The number of lower guide strips 7 is the same as the number of second annular grooves 22, and one lower guide strip 7 extends into one second annular groove 22.

[0054] The anti-sticking structure of the air cushion machine of this embodiment is installed on the air cushion machine body. When the heating wheel 1 and the wheel body 2 press and heat-seal the film material, a circle of flange 31 on the folding part 3 presses and folds the film material between the heating wheel 1 and the wheel body 2, so that the edge of the film material is pressed down to form a folded angle, thereby forming an folded angle shape on the film material. The formed folded angle is the reinforcing rib of the flat film material. Since the film material is bent into an arc shape when it is rolled by the heating wheel 1, the arrangement of the reinforcing rib (folded angle shape) on the film material can improve the film quality. The high strength of the film material reduces the possibility of the film material being bent by the heating wheel 1 and / or the wheel body 2, so as to resist the film material being wound by the heating wheel 1; at the same time, the upper guide strip 6 can also limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward, guide the film material to leave the heating wheel 1, and avoid the film material adhering to the heating wheel 1. The lower guide strip 7 can also limit the discharge direction of the film material, guide the film material after inflation and heat sealing to be discharged forward, guide the film material to leave the wheel body 2, and avoid the film material adhering to the wheel body 2.

[0055] Embodiment three:

[0056] Figure 6 The structure of the anti-sticking structure of the air cushion machine discharge according to another embodiment of the utility model is schematically shown.

[0057] refer to Figure 6 , an anti-sticking structure for discharging materials of an air cushion machine, comprising a heating wheel 1, a wheel body 2 and a folding portion 3.

[0058] In this embodiment, the installation method of the heating wheel 1 and the wheel body 2 is the same as that of the first embodiment, and will not be repeated here.

[0059] The difference between this embodiment and the first embodiment is that the structure of the folding portion 3 is different.

[0060] refer to Figure 6 The left end of the heating wheel 1 is formed with a circle of bosses 101 along the circumferential direction. The radius of the bosses 101 is larger than the radius of the heating wheel 1 to ensure that the bosses 101 extend out of the circumferential surface of the heating wheel 1. The left end of the wheel body 2 is formed with a circle of steps 201 along the circumferential direction. The steps 201 are adapted to the bosses 101. When the heating wheel 1 and the wheel body 2 are pressed and heat-sealed to the film material ( Figure 6 In the state shown in the figure), the boss 101 on the heating wheel 1 is just accommodated in the step 201 on the wheel body 2, and the boss 101 and the step 201 together form the folding portion 3.

[0061] refer to Figure 6When the heating wheel 1 and the wheel body 2 perform pressure heat sealing on the film material, the matching position of the boss 101 on the heating wheel 1 and the step 201 on the wheel body 2 will form an angle shape on the film material. The formed angle is the reinforcing rib of the flat film material. Since the film material will bend into an arc shape when it is rolled by the heating wheel 1, the setting of the reinforcing ribs (angle shape) on the film material can improve the strength of the film material and reduce the possibility of the film material being bent by the heating wheel 1 and / or the wheel body 2, so as to resist the film material being rolled by the heating wheel 1.

[0062] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. The anti-sticking structure of the air cushion machine is characterized by: include: A rotatable heating wheel for heat-sealing the film material; A rotatable wheel body used for pressing and heat-sealing the film material together with the heating wheel; and The folding part is arranged on the heating wheel and / or the wheel body, and the folding part can fold the film material between the heating wheel and the wheel body so as to form an angle shape on the film material.

2. The anti-sticking structure for discharging materials from an air cushion machine according to claim 1, characterized in that: The folding portion is arranged at the end of the heating wheel, and a circle of flange is arranged on the folding portion along the circumferential direction, and the flange protrudes from the circumferential surface of the heating wheel.

3. The anti-sticking structure for discharging materials from an air cushion machine according to claim 1, characterized in that: The end of the heating wheel is provided with a circle of bosses along the circumferential direction, and the end of the wheel body is provided with a circle of steps adapted to the bosses along the circumferential direction. When the heating wheel and the wheel body perform compression heat sealing on the film material, the boss is accommodated in the step, and the boss and the step form a folding portion.

4. The anti-sticking structure for discharging materials from an air cushion machine according to claim 2, characterized in that: The projection of the flange and the wheel body in the axial direction of the wheel body overlaps.

5. The anti-sticking structure for discharging materials from an air cushion machine according to claim 1, characterized in that: The device also comprises an upper guard shield which is arranged on the heating wheel and is provided with an extension part for limiting the discharging direction of the film material.

6. The anti-sticking structure for discharging materials from an air cushion machine according to claim 1, characterized in that: It also includes a lower guard plate, which is arranged on a mounting shaft for mounting a wheel body, the wheel body is rotatably connected to the mounting shaft, and a limiting portion for limiting the discharging direction of the film material is provided on the lower guard plate.

7. The anti-sticking structure for discharging materials from an air cushion machine according to claim 1, characterized in that: It also includes an upper guide bar. The heating wheel is provided with at least one first annular groove along the circumference. The upper guide bar extends into the first annular groove on the heating wheel. The upper guide bar is located in the downstream direction of the heating wheel.

8. The anti-sticking structure for discharging materials from an air cushion machine according to claim 1, characterized in that: It also includes a lower guide strip. The wheel body is provided with at least one second annular groove along the circumferential direction. The lower guide strip extends into the second annular groove on the wheel body. The lower guide strip is located in the downstream direction of the wheel body.

9. The anti-sticking structure for discharging materials from an air cushion machine according to claim 5, characterized in that: The extension portion is formed by extending one side of the upper guard shield close to the wheel body toward the downstream direction of the film material conveying, and one side of the upper guard shield close to the wheel body is inclined.

10. An air cushion machine, characterized in that: It comprises an air cushion machine body and an air cushion machine discharge anti-sticking structure according to any one of claims 1 to 9, wherein the heating wheel and the wheel body are both arranged on the air cushion machine body.

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