CN116588440A - Heat-seal transmission mechanism and air cushion machine - Google Patents
Heat-seal transmission mechanism and air cushion machine Download PDFInfo
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- CN116588440A CN116588440A CN202310693166.5A CN202310693166A CN116588440A CN 116588440 A CN116588440 A CN 116588440A CN 202310693166 A CN202310693166 A CN 202310693166A CN 116588440 A CN116588440 A CN 116588440A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 194
- 238000007789 sealing Methods 0.000 claims abstract description 134
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 abstract description 26
- 230000000694 effects Effects 0.000 description 19
- 239000011324 bead Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
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Abstract
The invention discloses a heat-sealing transmission mechanism and an air cushion machine, wherein the heat-sealing transmission mechanism comprises a wheel body and a plurality of heating elements, the heating elements are wound on the periphery of the wheel body, gaps are formed between two bent angle positions of the heating elements, and the gaps of at least two heating elements are distributed in a staggered manner along the circumferential direction on an axial projection surface of the wheel body, and the air cushion machine comprises a driving part and the heat-sealing transmission mechanism. The heat seal line that heating element formed on the film layer is two at least, and two bent angle positions of heating element can form a pair of heat seal line head on the film layer, and the gas of air chamber internal seal can both produce the extrusion force to two heat seal line heads in a pair of heat seal line head department that is close to the air chamber, and this extrusion force can be shared on average to two heat seal line heads, and the extrusion force that every heat seal line head department received reduces, and furthest reduces the heat seal line head department and appears the bad possibility of heat seal, even if the gas of seal leaks through the clearance between a pair of heat seal line heads that is close to the air chamber, also can be blocked by at least one heat seal line.
Description
Technical Field
The invention relates to a heat-sealing transmission mechanism and an air cushion machine.
Background
In the field of logistics, the use of buffer air cushion or bubble bag to pack articles is becoming more and more popular, and the sealing of the air cushion film or bubble bag filled with air by the existing buffer air cushion machine adopts a pressing heat sealing mode, and basically uses heating wires to press heat seal the air filling opening of the air cushion film or bubble bag.
U.S. patent No. 10899523B2 discloses a sealing apparatus for heat sealing juxtaposed film plies, the sealing apparatus comprising a rotatable support cylinder having an outer circumferential surface, a heating element disposed about at least a portion of the outer surface and secured thereto such that the heating element is rotatable therewith, the heating element being wrapped about the outer surface more than once in a partially overlapping helical pattern, the juxtaposed film plies being sealed together by rotating the sealing apparatus into contact with the juxtaposed film plies and heating the heating element to a temperature sufficient to seal the film plies together, the arrangement of the heating element providing a heat seal for the film plies by compression:
since the heating element is wrapped more than once around the surface of the support cylinder in a spiral pattern, the two angular locations 188 and 190 of the heating element on the surface of the support cylinder (fig. 18 of U.S. patent No. 10899523B 2) are axially distributed along the support cylinder, and the two angular locations 188 and 190 of the heating element on the surface of the support cylinder do not lie on the same radial cross section perpendicular to the axis of the support cylinder, which can result in the presence of a single heat seal bead 178 in the region of some air cells adjacent to the heat seal bead, such as shown in fig.1 (fig. 20 of U.S. patent No. 10899523B 2), which forms a heat seal difference between the heat seal bead 178 and the adjacent heat seal bead 174, such that, during extrusion, the gas sealed within the air cells will create a concentrated extrusion force at the single heat seal bead 178 that will tend to distort the individual heat seal bead 178, which will tend to cause the heat seal bead 178 to be at the bead 178, which will also cause a bad seal layer to leak from the gas seal bead 174, and can further cause a bad sealing effect to occur in the adjacent film.
In the specific structure of the heat sealing device, the heating wire is divided into two sections, each section is semicircular and uniformly wound on the surface of the wheel wall of the first roller along the circumferential direction, the winding mode of the two sections of semicircular heating wires which are oppositely wound also plays a role in heat sealing, heat generated by the heating wire is conducted to the air cushion coiled film to realize heat sealing, and the following problems exist when the air cushion coiled film is subjected to compression heat sealing by the arrangement mode of the heating wire:
because the heater strip adopts two sections of half circle formula structures, every section is semicircular and twines at the wheel wall surface of first gyro wheel along the circumferencial direction, two sections of half circle formula heater strips can be along the axial distribution of first gyro wheel and set up relatively, two sections of half circle formula heater strips can not be in on the same radial cross-section with first gyro wheel axis vertically, as shown in figure 2 of the description, the bent angle position of two sections of half circle formula heater strips can form heat-seal wire head 1 and 2 on the air cushion roll film, heat-seal wire head 1 and 2 are along first gyro wheel axial distribution (as in the left and right sides direction in figure 2), two heat-seal wire head 1 and 2 can form a heat-seal fall, in this way, when the extrusion, the sealed gas in the air chamber can produce a concentrated extrusion force in heat-seal wire head 2 department, the deformation trend that the distortion appears in the position of heat-seal wire head 1 and 2, this extrusion force makes heat-seal wire 3 at heat-seal wire head 2 department produce heat-seal bad and damage, lead to gas in the air chamber leak from this department, moreover, because two sections of half circle formula heat-seal wire head 2 are in the radial direction of the air cushion roll film is different in the direction when the direction is in the air cushion roll film is different, the direction is different like that the air chamber F can be directly formed to the air chamber is different.
Therefore, how to overcome the above technical drawbacks is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a heat-sealing transmission mechanism and an air cushion machine.
According to one aspect of the present invention, there is provided a heat seal transmission mechanism comprising.
A rotatable wheel body; and
the plurality of heating elements are wound on the periphery of the wheel body, gaps are formed between two bent angle positions on the periphery of the wheel body by the heating elements, the gaps of at least two heating elements on the periphery of the wheel body are distributed in a staggered way along the circumferential direction on the projection surface of the wheel body in the axial direction,
the laminated film layers are sealed together by contacting the wheel with the laminated film layers and heating the heating element to a temperature sufficient to seal the film layers together.
According to the technical scheme, the wheel body is in contact with the overlapped film layers (namely, buffer air cushion or bubble bags needing heat sealing openings), when the heating element is heated to a temperature which is enough to enable the film layers to be sealed together, along with rotation of the wheel body, heat generated by the heating element is conducted to the overlapped film layers to seal the overlapped film layers together, as the number of the heating elements is multiple, heat sealing lines formed by the heating element on the film layers are at least two along the axis direction of the wheel body, two bent corner positions of each heating element can form a pair of heat sealing line heads on the film layers, sealing gas in the air chamber can generate extrusion force on the two heat sealing line heads at the position close to the air chamber, and the two heat sealing line heads can averagely split extrusion force of sealing gas in the air chamber and not generate distortion deformation, so that the sealing gas in the air chamber can reach a balanced effect on the two heat sealing line heads, and each extrusion force line head is reduced, thus, the heat sealing line heads can be reduced, and the air can leak out of at least one fine sealing line can be prevented from the periphery of the air chamber by at least one pair of heat sealing line heads, and the fine sealing line can leak out of the air chamber at least through the periphery of the gap between the heat sealing line heads.
In some embodiments, the number of the heating elements may be two, the two heating elements are distributed in parallel, and the gaps of the two heating elements on the periphery of the wheel body are respectively located on two opposite sides of the wheel body. Therefore, two parallel heat sealing lines can be formed on the film layer by the two heating elements, gaps of the two heating elements on the periphery of the wheel body are respectively located on two opposite sides of the wheel body, so that the distance between a pair of heat sealing line heads on one heat sealing line and a pair of heat sealing line heads on the other heat sealing line is ensured to be the largest, leakage of gas leaking from a gap between the pair of heat sealing line heads close to the air chamber is reduced to the greatest extent, and leakage of gas again from a gap between the pair of heat sealing line heads on the heat sealing line far away from the air chamber is ensured to the greatest extent.
In some embodiments, a first notch and a second notch may be disposed on the periphery of the wheel body, two ends of one heating element are inserted into the first notch, two ends of the other heating element are inserted into the second notch, the first notch is close to one end of the wheel body, and the second notch is close to the other end of the wheel body. Therefore, the first notch and the second notch close to the end portions are convenient to fix the end portions of the heating elements after the two heating elements are wound on the wheel body, and the heating elements are convenient to detach and replace.
In some embodiments, the two ends of the heating element may be inserted into the outer periphery of the wheel body. Therefore, after the two heating elements are wound on the wheel body, the two ends of the heating elements are inserted into the wheel body to be fixed, and the heating elements can be prevented from loosening easily in the use process.
In some embodiments, the plane of the heating element may be perpendicular to the axial direction of the wheel body. Therefore, the heat sealing line formed by the heating element on the film layer is always in a straight line shape, so that the extrusion force of sealing gas in the air chamber can be averagely distributed by two heat sealing line heads at each pair of heat sealing line heads on the heat sealing line without generating distortion, and the sealing effect is ensured.
In some embodiments, the periphery of the wheel body may be provided with accommodating grooves for accommodating the heating elements, the number of the accommodating grooves is the same as that of the heating elements, the heating elements are accommodated in the accommodating grooves, and the surface of the heating elements is not lower than the periphery of the wheel body. Therefore, the heating element is accommodated in the accommodating groove, and the heat sealing effect can be prevented from being influenced by the displacement of the heating element in the use process.
In some embodiments, two first springs and two second springs provided on the wheel body may be further included,
one ends of the two first springs are fixed on the wheel body, the other ends of the two first springs are respectively connected with one ends of the two heating elements,
one ends of the two second springs are fixed on the wheel body, and the other ends of the two second springs are respectively connected with the other ends of the two heating elements.
Therefore, the first spring and the second spring can ensure that the heating element is tightly stretched on the periphery of the wheel body, so that the heating element cannot be loosened and shifted in the use process.
In some embodiments, the wheel body further comprises a first conductive sheet, a second conductive sheet, a third conductive sheet and a fourth conductive sheet which are arranged on the wheel body,
one end of the first conductive sheet is arranged on one end of the first heating element, one end of the second conductive sheet is arranged on the other end of the heating element,
one end of the third conductive sheet is arranged on one end of the second heating element, and one end of the fourth conductive sheet is arranged on the other end of the heating element.
Thus, the first heating element can be energized and heated by the first and second conductive sheets to a temperature sufficient to seal the film layers together, and the second heating element can be energized and heated by the third and fourth conductive sheets to a temperature sufficient to seal the film layers together.
In some embodiments, the wheel further comprises a first binding post and a second binding post arranged on the wheel body, the other end of the second conductive sheet is connected with the other end of the fourth conductive sheet so that the two heating elements are connected in series, the other end of the first conductive sheet is arranged on the first binding post, and the other end of the third conductive sheet is arranged on the second binding post. Therefore, the two heating elements are connected in series, the layout of the circuit on the wheel body is optimized only by connecting the first conducting strip and the third conducting strip with the power line, and the two heating elements connected in series can ensure that the temperature of the two heating elements is consistent as long as the resistance value is the same, the heat sealing quality of the two heat sealing lines formed on the film layer by the two heating elements is ensured to be consistent, and the appearance degree of the buffer air cushion or the bubble bag after heat sealing is ensured to be consistent.
According to another aspect of the invention, there is also provided an air cushion machine comprising a drive member and the aforementioned heat seal transmission mechanism, the drive member driving the wheel body to rotate.
According to the air cushion machine disclosed by the invention, the wheel body is in contact with the overlapped film layers, when the heating element is heated to a temperature sufficient for sealing the film layers together, the driving part drives the wheel body to rotate, heat generated by the heating element is conducted to the overlapped film layers to seal the overlapped film layers together, at least two heat sealing lines formed on the film layers by the heating element are arranged along the axis direction of the wheel body, a pair of heat sealing line heads can be formed on the film layers at two bent angle positions of each heating element, the extrusion force of sealing gas in the air chamber can be averagely distributed by the two heat sealing line heads without generating distortion, so that the extrusion force of the sealing gas in the air chamber on the two heat sealing line heads can achieve a balanced effect, the extrusion force received by each heat sealing line head is reduced, the possibility of poor heat sealing at the heat sealing line heads can be reduced to the greatest extent, even if the sealing gas in the air chamber leaks out through a fine gap between the pair of heat sealing line heads, the leaked gas can be blocked by at least one heat sealing line head, and the leakage of the air cushion bag can be prevented from directly leaking out through the gap between the heat sealing line heads on all the heat sealing line heads or the heat sealing line heads.
Drawings
FIG.1 is a FIG.20 of U.S. patent No. 10899523B 2;
fig.2 is a heat sealing effect diagram of the first roller after heat sealing the air cushion film in the chinese invention patent No. 201512663017.x;
FIG. 3 is a schematic view of a heat seal transmission mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of the heat seal transmission mechanism shown in FIG. 3 in the direction A;
FIG. 5 is a rear view of the heat seal transmission mechanism shown in FIG. 4;
FIG. 6 is a bottom view of the heat seal transmission mechanism shown in FIG. 5;
FIG. 7 is a rear view of the heat seal transmission mechanism shown in FIG. 6;
FIG. 8 is a schematic view of the structure of the wheel body in the heat seal transmission mechanism shown in FIG. 3;
FIG. 9 is a side view of the heat seal transmission mechanism shown in FIG. 3;
fig. 10 is a heat-sealing effect diagram of the heat-sealing transmission mechanism shown in fig. 3 after heat-sealing the cushion air cushion or the bubble bag.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
Fig. 3 to 9 schematically show the structure of a heat seal transmission mechanism according to an embodiment of the present invention.
Referring to fig. 3 to 9, a heat seal transmission mechanism includes a wheel body 1 and a heating element 2. In addition, the heat seal transmission mechanism may further include a first spring 3, a second spring 4, a first conductive sheet 5, a second conductive sheet 6, a third conductive sheet 7, a fourth conductive sheet 8, a first post 9, a second post 10, and a third post 111.
The wheel body 1 can be driven to rotate by a driving part, and the driving part can be a motor.
Referring to fig. 3, 6, 7 and 9, the heating elements 2 are wound around the outer circumference of the wheel body 1, the number of the heating elements 2 is plural, in this embodiment, the number of the heating elements 2 is preferably two, two heating elements 2 are wound around the outer circumference of the wheel body 1 in parallel, the number of turns of each heating element 2 wound around the outer circumference of the wheel body 1 is 1, and two heating elements 2 may form two parallel heat-seal lines on the film layer of the cushion air cushion or the bubble bag. In other embodiments, the number of heating elements 2 may be adaptively designed according to the heat sealing requirements.
Referring to fig. 6 and 7, the plane where the two heating elements 2 are located is perpendicular to the axial direction of the wheel body 1, so that the heat sealing line formed by the heating elements 2 on the film layer of the buffer air cushion or the bubble bag is always in a straight line shape, so that the two heat sealing line heads at each pair of heat sealing line heads on the heat sealing line can equally share the extrusion force of sealing gas in the air chamber without generating distortion, and the sealing effect is ensured.
Referring to fig. 6, the heating element 2 located above forms a gap 201 between two corner portions 21 on the outer periphery of the wheel body 1, and referring to fig. 7, the heating element 2 located below also forms a gap 201 between two corner portions 21 on the outer periphery of the wheel body 1. It should be noted that since the two ends of the same heating element 2 cannot be contacted, or else short-circuited, there must be a gap between the two bent corner portions 21 on the outer periphery of each heating element 2, and there must be a plurality of pairs of heat-seal wire ends on the heat-seal wire formed on the film layer by the two bent corner portions 21 of the heating element 2, in order to improve the sealing effect, it is ensured that the gap 201 between the two bent corner portions 21 on the outer periphery of the heating element 2 is sufficiently small, i.e., that the gap between the two heat-seal wire ends of the pair of heat-seal wire ends is sufficiently small.
In this embodiment, the heating element 2 is preferably flat, so that a certain width of the heat-sealing line after heat-sealing the film layer of the cushion air cushion or the bubble bag can be ensured, and the sealing property can be ensured. In other embodiments, the pattern of the heating element 2 may be designed in other patterns according to the heat sealing requirement, as long as the heat sealing effect and sealability are ensured.
Referring to fig. 8, the outer circumference of the wheel body 1 is formed with accommodating grooves 13, the accommodating grooves 13 are used for accommodating the heating elements 2, the number of the accommodating grooves 13 is the same as that of the heating elements 2, one heating element 2 is accommodated in each accommodating groove 13, and the heating elements 2 are accommodated in the accommodating grooves 13, so that the heat sealing effect can be prevented from being influenced by the displacement of the heating elements 2 in the using process; when the outer peripheral surface of the wheel body 1 is made of hard materials, the surface of the heating element 2 is not lower than the outer peripheral surface of the wheel body 1 after the heating element 2 is accommodated in the accommodating groove 13, so that the heating element 2 can be heat-sealed to the film layer of the buffer air cushion or the bubble bag, when the outer peripheral surface of the wheel body 1 is made of elastic materials, the surface of the heating element 2 can be slightly lower than the outer peripheral surface of the wheel body 1 after the heating element 2 is accommodated in the accommodating groove 13, and in this way, when the wheel body 1 is pressed on the film layer of the buffer air cushion or the bubble bag, the heating element 2 in the accommodating groove 13 can be heat-sealed to the film layer of the buffer air cushion or the bubble bag after the outer periphery of the wheel body 1 is extruded.
The surface of the heating element 2 can be stuck with a layer of scald-proof adhesive tape.
Referring to fig. 3, 6, 7 and 9, the gap 201 between the two corner positions 21 of one heating element 2 and the gap 201 between the two corner positions 21 of the other heating element 2 are distributed in a staggered manner along the circumferential direction on the projection plane of the axial direction of the wheel body 1, that is, the gap 201 between the two corner positions 21 of one heating element 2 and the gap 201 between the two corner positions 21 of the other heating element 2 are not aligned on the periphery of the wheel body 1; the heat sealing lines formed by the two heating elements 2 on the film layer of the buffer air cushion or the bubble bag are two along the axial direction of the wheel body 1, the two bent angle positions 21 of each heating element 2 can form a pair of heat sealing line heads on the film layer, and the sealed air in the air chamber of the buffer air cushion or the bubble bag can generate extrusion force to the two heat sealing line heads at the position of the pair of heat sealing line heads close to the air chamber, and the two heat sealing line heads are positioned on the same heat sealing line, so that the extrusion force of the sealing air in the air chamber can averagely distribute the extrusion force of the sealing air in the air chamber without generating distortion, the extrusion force of the sealing air in the air chamber to the two heat sealing line heads can achieve a balanced effect, the extrusion force received by each heat sealing line head is reduced, so that the possibility of poor heat sealing and breakage can be reduced to the greatest extent, and because the gaps 201 of the two heating elements 2 on the periphery of the wheel body 1 are distributed in a circumferential staggering way on the projection surface of the axial direction of the air chamber, even if the sealing air in the buffer air chamber or the bubble bag passes through the pair of air chamber heads close to the air chamber, the leakage effect can be ensured directly through the gap between the heat sealing line heads, and the leakage effect can not be ensured.
In other embodiments, when the number of heating elements 2 is N (n++3), the gap 201 between the two corner portions 21 of each heating element 2 may be staggered from each other on the outer periphery of the wheel body 1, or N-1 gaps 201 may be aligned on the outer periphery of the wheel body 1, so long as there is a stagger of the gap 201 between the two corner portions 21 of two heating elements 2 on the outer periphery of the wheel body 1, that is, a stagger of the gap 201 between the two corner portions 21 of at least two heating elements 2 on the outer periphery of the wheel body 1 is ensured, and a misalignment of the gap 201 between the two corner portions 21 of N heating elements 2 on the outer periphery of the wheel body 1 is ensured, so that even if the sealing gas in the gas chamber of the cushion gas cushion or the bubble bag leaks through a fine gap between the pair of heat seal line ends near the gas chamber, the leaked gas is blocked by at least one line and does not directly leak through the gap between the heat seal line ends on all the heat seal lines to the maximum extent, so that the sealing effect can be ensured.
Referring to fig. 3, 8 and 9, a first notch 11 and a second notch 12 are formed on the periphery of the wheel body 1, referring to fig. 6, the first notch 11 is close to the upper end of the wheel body 1, referring to fig. 7, the second notch 12 is close to the lower end of the wheel body 1, the first notch 11 and the second notch 12 are respectively positioned at two opposite sides of the wheel body 1, two ends of one heating element 2 are inserted into the first notch 11, namely, the heating element 2 is bent at the first notch 11 to form two bent angle positions 21, the two bent angle positions 21 are not contacted, a gap 201 is formed between the two bent angle positions 21, short circuit is avoided, two ends of the other heating element 2 are inserted into the second notch 12, namely, the heating element 2 is bent at the second notch 12 to form two bent angle positions 21, the two bent angle positions 21 are not contacted, a gap 201 is formed between the two bent angle positions 21, and short circuit is avoided; the first notch 11 and the second notch 12 are respectively close to the upper end and the lower end of the wheel body 1, so that the two heating elements 2 are conveniently wound on the wheel body 1, and then the end parts of the heating elements 2 are fixed, and the heating elements 2 are conveniently detached and replaced; since the first notch 11 and the second notch 12 are located on opposite sides of the wheel body 1, respectively, two corner positions 21 of one heating element 2 on the outer periphery of the wheel body 1 and two corner positions 21 of the other heating element 2 on the outer periphery of the wheel body 1 are located on opposite sides of the wheel body 1, respectively, that is, the gaps 201 of the two heating elements 2 on the outer periphery of the wheel body 1 are oppositely arranged along the circumferential direction of 180 degrees on the projection surface of the wheel body 1 in the axial direction, so that the distance between one pair of heat seal wire ends of two heat seal wires formed on the film layer of the buffer air cushion or the bubble bag and one pair of heat seal wire ends of the other heat seal wire is maximum, the gas leaked from the fine gap between the pair of heat seal wire ends close to the air chamber is reduced to the greatest extent, and the sealing effect on the air chamber is ensured to the greatest extent.
In this embodiment, two ends of one heating element 2 are inserted into the first notch 11, and two ends of the other heating element 2 are inserted into the second notch 12. In other embodiments, two ends of the heating element 2 may be directly inserted into the periphery of the wheel body 1, that is, two opposite perforations are formed on the periphery of the wheel body 1, two ends of one heating element 2 are inserted into one perforation, that is, the heating element 2 is bent at the perforation to form two corner positions 21, the two corner positions 21 are not contacted, short circuit is avoided, two ends of the other heating element 2 are inserted into the other perforation, that is, the heating element 2 is bent at the perforation to form two corner positions 21, the two corner positions 21 are not contacted, and short circuit is avoided.
The number of the first springs 3 and the number of the second springs 4 are two. Wherein: one end of a first spring 3 is fixed on the wheel body 1, the other end of the first spring 3 is connected with one end of a heating element 2, one end of a second spring 4 is fixed on the wheel body 1, and the other end of the second spring 4 is connected with the other end of the heating element 2; one end of the other first spring 3 is fixed on the wheel body 1, the other end of the first spring 3 is connected with one end of the other heating element 2, one end of the other second spring 4 is fixed on the wheel body 1, and the other end of the second spring 4 is connected with the other end of the heating element 2. The mounting relationship between the first spring 3, the second spring 4 and the wheel body 1 can be specifically: referring to fig. 3 and 8, a first accommodating cavity 14 and a second accommodating cavity 15 are formed on the upper end surface of the wheel body 1, the first accommodating cavity 14 is communicated with the first notch 11, the second accommodating cavity 15 is also communicated with the first notch 11, referring to fig. 5, a first spring 3 is accommodated in the second accommodating cavity 15, one end of the first spring 3 is fixed on the bottom wall of the second accommodating cavity 15 through a first screw 31, the other end of the first spring 3 is connected with one end of a heating element 2, a second spring 4 is accommodated in the first accommodating cavity 14, one end of the second spring 4 is fixed on the bottom wall of the first accommodating cavity 14 through a second screw 41, the other end of the second spring 4 is connected with the other end of the heating element 2 (the heating element 2 connected with the first spring 3), and the first spring 3 can ensure that the heating element 2 is stretched on the periphery of the wheel body 1, so that the heating element 2 cannot be loosened and shifted in use; referring to fig. 9, a third accommodating cavity 16 and a fourth accommodating cavity 17 are formed on the lower end surface of the wheel body 1, the third accommodating cavity 16 is communicated with the second notch 12, the fourth accommodating cavity 17 is also communicated with the second notch 12, referring to fig. 4 and 9, a second first spring 3 is accommodated in the fourth accommodating cavity 17, one end of the first spring 3 is fixed on the bottom wall of the fourth accommodating cavity 17 through a first screw 31, the other end of the first spring 3 is connected with one end of a second heating element 2, a second spring 4 is accommodated in the third accommodating cavity 16, one end of the second spring 4 is fixed on the bottom wall of the third accommodating cavity 16 through a second screw 41, the other end of the second spring 4 is connected with the other end of the heating element 2 (the heating element 2 connected with the second first spring 3), and the second spring 4 can ensure that the heating element 2 is tightened on the periphery of the wheel body 1, so that the heating element 2 cannot be loosened and displaced during use; in addition, the length of the first spring 3 can be smaller than the length of the second spring 4, the tensile strength of the first spring 3 is larger than the tensile strength of the second spring 4, when the heating element 2 is installed, the first spring 3 can be firstly fixed in the second accommodating cavity 15/the fourth accommodating cavity 17 through the first screw 31, and the second spring 4 is fixedly arranged in the first accommodating cavity 14/the third accommodating cavity 16 through the second screw 41, then one end of the first heating element 2 is installed on the first spring 3, then the heating element 2 is wound on the periphery of the wheel body 1, then the corresponding second spring 4 is stretched, the other end of the heating element 2 is installed on the second spring 4, and then one end of the second heating element 2 is installed on the second first spring 3, and then the heating element 2 is wound on the periphery of the wheel body 1, then the corresponding second spring 4 is fixed, and the other end of the heating element 2 is installed on the second spring 4, then the second spring 4 is also lower than the tensile strength of the second spring 4, and the heating element 2 can be easily detached from the second spring 4, and the length of the second spring 4 is also saved, and the heating element 2 can be easily detached from the second spring 4, and the length of the second spring 4 is more easily detached.
Referring to fig. 3 to 5, one end of the first conductive sheet 5 passes through the wheel body 1 and is connected to one end of the first heating element 2, one end of the first conductive sheet 5 may be welded to one end of the first heating element 2 and then commonly fixed to the first and second springs 4, one end of the second conductive sheet 6 passes through the wheel body 1 and is connected to the other end of the aforementioned first heating element 2, and one end of the second conductive sheet 6 may be welded to the other end of the aforementioned first heating element 2 and then commonly fixed to the first and second springs 3; one end of the third conductive sheet 7 is connected with one end of the second heating element 2, one end of the third conductive sheet 7 can be welded on one end of the second heating element 2 and then be jointly fixed on the second first spring 3, one end of the fourth conductive sheet 8 is connected with the other end of the second heating element 2, and one end of the fourth conductive sheet 8 can be welded on the other end of the second heating element 2 and then be jointly fixed on the second spring 4; the first conductive sheet 5, the second conductive sheet 6, the third conductive sheet 7 and the fourth conductive sheet 8 are all in a flat layout on the end face of the wheel body 1, one ends of the first conductive sheet 5 and the second conductive sheet 6 are bent and then pass through the wheel body 1, one ends of the third conductive sheet 7 are bent and then inserted into the second accommodating cavity 15, one ends of the fourth conductive sheet 8 are bent and then inserted into the first accommodating cavity 14, the first heating element 2 can be electrified and heated to a temperature which is enough to seal the film layers of the buffer air cushion or the bubble bag together through the first conductive sheet 5 and the second conductive sheet 6, and the second heating element 2 can be electrified and heated to a temperature which is enough to seal the film layers of the buffer air cushion or the bubble bag together through the third conductive sheet 7 and the fourth conductive sheet 8.
Referring to fig. 3 and 9, the first binding post 9, the second binding post 10 and the third binding post 111 are inserted into the wheel body 1, the end part of the first conducting strip 5 is fixed on the first binding post 9, the end part of the third conducting strip 7 is fixed on the second binding post 10, the first binding post 9 and the second binding post 10 are respectively connected with a power line, the second conducting strip 6 and the fourth conducting strip 8 are connected together and fixed on the third binding post 111, so that two heating elements 2 can be connected in series, the third binding post 111 is not connected with the power line, the third binding post 111 not only realizes the series connection of the two heating elements 2, but also when the wheel body 1 is installed on an air cushion machine, the wheel body 1 can be installed through three points of the first binding post 9, the second binding post 10 and the third binding post 111, and the wheel body 1 can be firmly installed on the air cushion machine.
The air cushion machine comprises a driving part and the heat-seal transmission mechanism, wherein the driving part and the heat-seal transmission mechanism are both arranged on the air cushion machine, the driving part can drive the wheel body 1 in the heat-seal transmission mechanism to rotate, the wheel body 1 is in contact with the overlapped film layers of the buffer air cushion or the bubble bag conveyed by the air cushion machine, the heat-seal transmission mechanism can heat-seal the overlapped film layers of the buffer air cushion or the bubble bag, and the rotating wheel body 1 can convey the buffer air cushion or the bubble bag to the downstream.
Fig. 10 schematically illustrates the heat sealing effect of the heat seal transmission mechanism of fig. 3 after heat sealing the cushion air cushion or the bubble bag.
According to the technical scheme of the invention, the first binding post 9 and the second binding post 10 are respectively connected with a power line on an air cushion machine, referring to fig. 10, the wheel body 1 is contacted with a superposed film layer on the left side of a buffer air cushion or an air bubble bag 101 conveyed by the air cushion machine, the superposed film layer on the left side of the buffer air cushion or the air bubble bag 101 needs to be heat-sealed and opened, when two heating elements 2 are heated to a temperature sufficient for sealing the film layers on the left side of the buffer air cushion or the air bubble bag 101 together, a driving part on the air cushion machine drives the wheel body 1 to rotate, along with the rotation of the wheel body 1, heat generated by the two heating elements 2 is conducted onto the superposed film layers to seal the superposed film layers together, meanwhile, the buffer air cushion or the air bubble bag 101 is conveyed downstream by the rotating wheel body 1, and as a gap 201 between two bent angle positions 21 of one heating element 2 on the periphery of the wheel body 1 and a gap 201 between two bent angle positions 21 of the other heating element 2 on the periphery of the wheel body 1 are respectively positioned on two opposite sides of the wheel body 1, in this way, referring to fig. 10, two heat-sealing lines 103 and 104 are formed on the film layer by two heat-generating elements 2, wherein two corner portions 21 of one heat-generating element 2 form a pair of heat-sealing line heads 105 on the film layer, two corner portions 21 of the other heat-generating element 2 form a pair of heat-sealing line heads 106 on the film layer, the pair of heat-sealing line heads 105 on the heat-sealing line 103 and the pair of heat-sealing line heads 106 on the heat-sealing line 104 are distributed in a staggered manner in the transverse direction, the gas sealed in the air chamber 102 generates extrusion force to the two heat-sealing line heads 105 at the position close to the pair of heat-sealing line heads 105 of the air chamber 102, the two heat-sealing line heads 105 are positioned on the same heat-sealing line 103, the extrusion force of the sealing gas in the air chamber 102 is averagely distributed by the two heat-sealing line heads 105 without generating distortion, the extrusion force of the sealing gas in the air chamber 102 on the two heat-sealing wire heads 105 can achieve a balance effect, the extrusion force born by each heat-sealing wire head 105 is reduced, so that the possibility of breakage caused by poor heat sealing of the heat-sealing wire heads 105 can be reduced to the greatest extent, and because the gaps 201 of the two heating elements 2 on the periphery of the wheel body 1 are distributed in a staggered manner along the circumferential direction on the projection surface of the wheel body 1 in the axial direction, even if the sealing gas in the air chamber 102 leaks out through the fine gaps 107 between the pair of heat-sealing wire heads 105 close to the air chamber, the leaked gas can be blocked by the adjacent heat-sealing wire heads 104 and can not directly leak out through the fine gaps 107 between the pair of heat-sealing wire heads 106 on the adjacent heat-sealing wire heads 104; moreover, since the gap 201 between the two corner portions 21 of one heating element 2 on the outer periphery of the wheel body 1 and the gap 201 between the two corner portions 21 of the other heating element 2 on the outer periphery of the wheel body 1 are respectively located on the opposite sides of the wheel body 1, the distance between the pair of heat seal wire ends 105 on the heat seal wire 103 and the pair of heat seal wire ends 106 on the heat seal wire 104 can be ensured to be maximum, the leakage of the gas leaking from the fine gap 107 between the pair of heat seal wire ends 105 close to the air chamber can be reduced to the greatest extent, and the leakage of the gas again from the fine gap 107 between the pair of heat seal wire ends 106 on the heat seal wire 104 far from the air chamber can be ensured to the greatest extent; in addition, as the plane where the two heating elements 2 are located is perpendicular to the axial direction of the wheel body 1, the two heating elements 2 can form two heat sealing lines 103 and 104 which are arranged in parallel on the film layer, so that the two heat sealing lines formed by the two heating elements 2 on the film layer are always in straight lines and parallel, the two heat sealing line heads 105 at the pair of heat sealing line heads 105 on the heat sealing line 103 can averagely distribute the extrusion force of sealing gas in the air chamber 102 without generating distortion, and the sealing effect is ensured; with different patterns and sizes of the cushion air cushion or the bubble bag 101, heat seal line heads on the heat seal line close to the air chamber can appear on the heat seal line of some air chambers, and no heat seal line heads on the heat seal line far away from the air chamber can form a continuous heat seal line.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (10)
1. A heat seal transmission mechanism comprising:
a rotatable wheel body; and
the heating elements are wound on the periphery of the wheel body, a gap is formed between two bent angle positions on the periphery of the wheel body by the heating elements, the gaps of at least two heating elements on the periphery of the wheel body are distributed in a staggered way along the circumferential direction on the projection surface of the wheel body in the axial direction,
the laminated film layers are sealed together by contacting the wheel with the laminated film layers and heating the heating element to a temperature sufficient to seal the film layers together.
2. The heat seal transmission mechanism as claimed in claim 1, wherein the number of the heat generating elements is two, the two heat generating elements are arranged in parallel, and the gaps of the two heat generating elements on the periphery of the wheel body are respectively positioned on two opposite sides of the wheel body.
3. The heat seal transmission mechanism as claimed in claim 2, wherein a first notch and a second notch are provided on the outer periphery of the wheel body, two ends of one of the heating elements are inserted into the first notch, two ends of the other heating element are inserted into the second notch, the first notch is close to one end of the wheel body, and the second notch is close to the other end of the wheel body.
4. The heat seal transmission mechanism of claim 2 wherein the ends of the heating element are threaded into the outer periphery of the wheel body.
5. The heat seal transmission mechanism of claim 1 wherein the plane of the heating element is perpendicular to the axial direction of the wheel.
6. The heat seal transmission mechanism as claimed in claim 1, wherein the outer periphery of the wheel body is provided with accommodating grooves for accommodating the heating elements, the number of the accommodating grooves is the same as that of the heating elements, the heating elements are accommodated in the accommodating grooves, and the surfaces of the heating elements are not lower than the outer peripheral surface of the wheel body.
7. The heat seal transmission mechanism according to any one of claims 2 to 4, further comprising two first springs and two second springs provided on the wheel body,
one ends of the two first springs are fixed on the wheel body, the other ends of the two first springs are respectively connected with one ends of the two heating elements,
one ends of the two second springs are fixed on the wheel body, and the other ends of the two second springs are respectively connected with the other ends of the two heating elements.
8. The heat seal transmission mechanism according to any one of claims 2 to 4, further comprising a first conductive sheet, a second conductive sheet, a third conductive sheet and a fourth conductive sheet provided on the wheel body,
one end of the first conductive sheet is arranged on one end of the first heating element, one end of the second conductive sheet is arranged on the other end of the heating element,
one end of the third conductive sheet is arranged on one end of the second heating element, and one end of the fourth conductive sheet is arranged on the other end of the heating element.
9. The heat seal transmission mechanism of claim 8 further comprising a first post and a second post on the wheel, the second conductive sheet having the other end connected to the other end of the fourth conductive sheet to connect the two heat generating elements in series, the first conductive sheet having the other end disposed on the first post and the third conductive sheet having the other end disposed on the second post.
10. An air cushion machine, characterized by comprising a driving part and a heat sealing transmission mechanism according to any one of claims 1-9, wherein the driving part drives a wheel body to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310693166.5A CN116588440A (en) | 2023-06-12 | 2023-06-12 | Heat-seal transmission mechanism and air cushion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310693166.5A CN116588440A (en) | 2023-06-12 | 2023-06-12 | Heat-seal transmission mechanism and air cushion machine |
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| CN116588440A true CN116588440A (en) | 2023-08-15 |
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| CN202310693166.5A Pending CN116588440A (en) | 2023-06-12 | 2023-06-12 | Heat-seal transmission mechanism and air cushion machine |
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