CN115302786A - Automatic opening device for air passage of air column packaging body - Google Patents

Abstract

The invention provides an automatic opening device for an air channel opening of an air column packaging body, which comprises a lower die, an upper die, an opening and closing die power part and a vacuum adsorption component, wherein vacuum pumping cavities are respectively formed in the lower die and the upper die, an upper arc-shaped groove and a lower arc-shaped groove which are sunken inwards are respectively formed on the bottom surface of the upper die and the top surface of the lower die, the upper arc-shaped groove and the lower arc-shaped groove are butted to form an inflation die cavity matched with an inflation nozzle, and a plurality of adsorption holes are respectively formed on the arc-shaped grooves forming the inflation die cavity. The invention moves the upper and lower layer films into the inflation die cavity respectively through vacuum adsorption to open the air channel opening, and the deformation of the upper and lower layer films can not be caused in the opening process, and simultaneously, under the relative regulation of the upper and lower dies, the inflation die cavity formed by the air channel opening is in sealing fit with the inflation nozzle, thereby avoiding inflation leakage, ensuring the sufficient inflation quantity and inflation pressure, providing necessary conditions for high-quality heat sealing in the later period, and having simple structure and convenient implementation.

Description

Automatic opening device for air passage of air column packaging body

Technical Field

The invention belongs to the technical field of inflatable packaging, and particularly relates to an automatic opening device for an air channel opening of an air column packaging body.

Background

The air column packaging body is a buffering packaging material with a reverse air stop valve, two layers of films form a plurality of independent air columns under the hot pressing of a specific grinding tool, each air column is provided with an air valve (a one-way valve or a reverse air stop valve), all the air columns share one inflation inlet, the air columns are stored and transported in a flat film shape before use, the air columns are inflated immediately, and the air valves can automatically lock air after inflation, so that the inflation air pressure can be adjusted as required.

However, the reverse air stop valve is sealed and locked by the self-adhesion between films, and is not like a locking mode such as heat sealing or adhesion, and the air pressure in the air column is greatly reduced within one or two months, so that the protection is greatly reduced, and therefore, the air column packaging body is only used in short-distance and short-time express delivery or logistics transportation. In addition, the current inflation mode of the air column packaging body with the one-way air stop valve can be manual inflation or automatic inflation, manual inflation needs manual air nozzles to be aligned to air channel openings for inflation, and the manual inflation is flexible, but low in efficiency and unstable in manual inflation quality.

At present, the automatic inflator carries out automatic inflation to the gas column packing body of rolling up membrane form, but can cut the air flue after aerifing, otherwise can't take out the gas column packing body after aerifing, and this also leads to can't carrying out the heat-seal to the gas channel mouth again and seals, consequently, because the air flue cuts the back, and the membrane of air flue has already the fold uneven, not only pleasing to the eye, and the lock gas effect is poor moreover.

In order to improve the reliability of the heat sealing of the air column packaging body and avoid the operations such as air flue cutting, and the like, the air is filled into an inner cavity from an inlet (an air flue opening) of the air flue, the air can be filled into each air column through a one-way valve, after the air filling is finished, the air flue opening is subjected to heat sealing, and a long-time air locking effect can be achieved, so that the air column packaging body is used for long-time storage and transportation scenes (such as packaging of express delivery or logistics), however, because the air flue opening is formed by two layers of films (generally, the films are attached to each other), if the air filling is needed, the two layers of films are firstly relatively opened, and then the inflating nozzle is inserted, so that the air filling can be implemented, and in the actual operation, the following defects exist during the opening and the inflating of the air flue opening:

1. the two layers of films are viscous, so that the films are difficult to separate, the inflation efficiency is low, and meanwhile, the deformation of the films is difficult to avoid in the opening process, so that the later-stage heat sealing qualification rate is low, and the air locking effect is poor;

2. after the air passage opening, because the inner diameter of the air passage opening is certainly larger than the outer diameter of the inflating nozzle, when quantitative inflation is carried out, partial air leaks from the inflating nozzle to the air passage opening, so that the internal inflating quantity or the inflating air pressure of the air column packaging body is insufficient.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a brand-new automatic opening device for an air channel opening of an air column packaging body.

In order to achieve the purpose, the invention adopts the technical scheme that: an automatic opening device for an air duct opening of an air column packaging body is located at an inflating and sealing station and comprises a lower die, an upper die, an opening and closing die power part and a vacuum adsorption component, wherein the lower die is fixed at the inflating and sealing station, the upper die is located above the lower die, the opening and closing die power part drives the lower die and the upper die to move relatively, vacuum pumping cavities are formed in the lower die and the upper die respectively, an upper arc-shaped groove and a lower arc-shaped groove which are sunken inwards are formed in the bottom surface of the upper die and the top surface of the lower die respectively, the upper arc-shaped groove and the lower arc-shaped groove are butted to form an inflating die cavity matched with an inflating nozzle, a plurality of adsorption holes are formed in the arc-shaped grooves forming the inflating die cavity respectively, an upper layer film and a lower layer film of the air duct opening are located at the inflating and sealing station, the lower die and the upper layer film and the lower layer film move inwards, the vacuum adsorption component provides negative pressure, the upper layer film and the lower layer film move inwards and downwards to open the air duct opening to be matched with the inflating nozzle in a sealing mode of relative movement.

According to a specific implementation and a preferable aspect of the invention, the upper die comprises an upper die body and an upper die sleeve, wherein the upper die body is internally provided with a vacuum pumping cavity, the upper die sleeve is sleeved on the upper die body, the upper arc-shaped groove is positioned on the bottom surface of the upper die body, the upper die sleeve is a flexible sleeve, the flexible sleeve closes the upper arc-shaped groove to form an upper deformation cavity, the bottom surface of the flexible sleeve forms an air hole, when the lower die and the upper die are relatively attached, the upper film is attached to the bottom surface of the flexible sleeve and blocks the air hole, the vacuum adsorption assembly provides negative pressure, and the flexible sleeve and the upper film keep attached and move upwards to be opened. The upper film is driven to move through the deformation of the flexible sleeve, so that the upper film can be fitted on the upper arc-shaped groove in a matched mode, and the opening size of the air channel opening is matched with the inflating nozzle.

Preferably, when not attached, the air holes are distributed in an array on the bottom surface of the flexible sleeve corresponding to the upper arc-shaped groove.

Preferably, the upper arc-shaped groove is a semi-circular groove, and the plurality of adsorption holes are distributed on the groove surface of the semi-circular groove in an array manner.

According to another embodiment and preferred aspect of the present invention, when the opening of the gas channel is closed, the gas holes are partially communicated with the adsorption holes, and part of the gas holes are misaligned with the adsorption holes. Due to the arrangement, the flexible sleeve and the upper layer film are kept attached, and the opening of the airway opening is facilitated.

According to a specific implementation and preferable aspect of the invention, the lower die and the upper die are symmetrically arranged, and the flexible sleeve sleeved on the lower die body closes the lower arc-shaped groove to form a lower deformation cavity, and when the air duct opening is closed and opened, the flexible sleeves forming the upper deformation cavity and the lower deformation cavity can keep flexible sealing and are arranged on the periphery of the inflating valve. Thus, air leakage caused during inflation can be more effectively avoided.

Preferably, the lower die body and the upper die body are both flexible modules, and in the upward movement of the upper film and the downward movement of the lower film, the parts at the two sides of the air port opening move inwards gradually along the compression joint formed by the flexible modules so as to open the air port opening. Therefore, the membrane larger than the outer diameter part of the inflating nozzle is positioned in the pressure joint formed by the flexible modules, and the probability of inflation leakage is further reduced.

Further, the inflating nozzle comprises a cylindrical body and an inflating end part formed at the inserting end part of the cylindrical body, wherein the inflating end part is in a conical shape or a frustum shape, and when the inflating nozzle is inflated, the upper layer film and the lower layer film are relatively pressed and sealed at the periphery of the cylindrical body; when the inflation is finished, the vacuum pumping cavity gradually releases negative pressure, the air nozzle is actively pumped out, the flexible sleeve is attached and reset, the air nozzle is extruded out of the air channel opening, and the upper film and the lower film are relatively flattened and closed. That is to say, the effect of flexible cover not only plays the laminating diaphragm and forms flexible sealed effect with the charging connector, but also can flatten with the implementation upper and lower tunic flattening with the charging connector cooperation and seal, and the flexible cover resets simultaneously and can outwards release in can the inflation chamber that the tip diminishes gradually from inflating, and laborsaving and make things convenient for the operation of taking out of charging connector more.

In addition, the lower mould is fixed on the station of aerifing and sealing, and the mould power spare that opens and shuts is used for driving the relative lower mould of mould and is close to or keep away from the motion on the mould can the up-and-down motion of last mould.

Preferably, the vacuum adsorption component comprises a vacuum pumping interface, a vacuum pumping pump and a vacuum pumping pipe which are positioned at the same end and respectively communicated with the vacuum pumping cavities of the upper die and the lower die, so that the negative pressure is very convenient to form, and the assembly is also convenient.

Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:

the invention moves the upper and lower layer films into the inflation die cavity respectively through vacuum adsorption to open the air port opening, and the deformation of the upper and lower layer films can not be caused in the opening process, and meanwhile, under the relative regulation of the upper and lower dies, the inflation die cavity formed by the air port opening is in sealing fit with the inflation nozzle, thereby avoiding the inflation leakage, ensuring the sufficient inflation quantity and inflation pressure, providing necessary conditions for the later-stage high-quality heat sealing, and having simple structure and convenient implementation.

Drawings

FIG. 1 is a schematic structural view of an automatic opening device according to the present invention;

FIG. 2 is a schematic structural view of the lower mold of FIG. 1;

FIG. 3 is a schematic half-section view of FIG. 2;

FIG. 4 is a schematic structural diagram of the lower mold body of FIG. 2;

FIG. 5 is a schematic half-sectional view of the upper and lower dies of FIG. 1 in the process of being attached;

fig. 6 is a schematic structural view of the automatic opening device in fig. 1 in a state of opening the airway opening;

FIG. 7 is a schematic view of the inflation nozzle of FIG. 6 inserted into the air passage opening in an inflated state;

wherein: 1. a lower die; 10. a lower die body; 100. a lower arc-shaped groove; 11. a lower die sleeve; q1, a lower deformation cavity; x1, adsorption holes; x2, air holes;

2. an upper die; 20. feeding a mold body; 200. an upper arc-shaped groove; 21. putting a die sleeve; q2, an upper deformation cavity; q, inflating the die cavity;

3. opening and closing the die power piece;

4. a vacuum adsorption assembly; 40. vacuumizing the interface;

5. an air charging nozzle; 50. an inflatable end portion;

k. an air duct opening; m1, an upper layer film; m2, lower layer film.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

As shown in fig. 1 to 3, the automatic opening device for an air channel opening of an air column packaging body of the present embodiment is located at an inflating and sealing station, and includes a lower mold 1 fixed at the inflating and sealing station, an upper mold 2 located above the lower mold 1, a mold opening and closing power member 3 driving the lower mold 1 and the upper mold 2 to move relatively, and a vacuum adsorption assembly 4.

Specifically, lower mould 1 is fixed at aerifing and seals the station, goes up the motion setting of mould 2 oscilaltion, consequently, opens and shuts mould power piece 3 and is used for driving to go up mould 2 and be close to or keep away from the motion relatively lower mould 1.

In this example, the upper die 2 and the lower die 1 are symmetrically arranged.

Therefore, the specific structure of the lower mold 1 will be explained, and the specific structure of the upper mold 2 will be clear.

Specifically, the lower mold 1 includes a lower mold body 10 having an internal vacuum pumping cavity, and a lower mold sleeve 11 sleeved on the lower mold body 10.

A lower arc-shaped groove 100 which is recessed inwards from the top surface is formed on the lower die body 10, and the lower die sleeve 11 is a flexible sleeve which closes the lower arc-shaped groove 100 to form a lower deformation cavity q1.

A plurality of adsorption holes x1 are formed on the lower arc-shaped groove 100, and air holes x2 are formed at the parts of the lower die sleeve 11 corresponding to the lower arc-shaped groove 100.

Specifically, the lower arc-shaped slot 100 is semicircular.

As shown in fig. 4, a plurality of adsorption holes x1 are distributed in an array around the semicircular groove surface.

Referring to fig. 5, the upper mold 2 is correspondingly provided with an upper mold body 20 and an upper mold sleeve 21, wherein the upper arc-shaped groove 200 is closed by the flexible sleeve to form an upper deformation chamber q2.

In this example, the flexible cover is attached to the upper and lower dies 1 and 2. The lower arc-shaped groove 100 and the upper arc-shaped groove 200 are butted to form an inflation die cavity q matched with the inflation nozzle 5.

The upper mold body 20 and the lower mold body 10 are also flexible modules, so that a good sealing effect can be achieved during fitting.

The mold opening and closing power part 3 is located on a common linear driving part, such as: the linear guide rail is matched with an oil cylinder (an air cylinder and the like).

The vacuum adsorption component 4 comprises a vacuum-pumping interface 40, a vacuum-pumping pump and a vacuum-pumping pipe which are positioned at the same end and respectively communicated with the vacuum-pumping cavities of the upper die 2 and the lower die 1.

As shown in fig. 6, after the air vent of the air column package body moves to the inflation and sealing station, the lower film of the air vent is attached to the lower mold sleeve 11 of the lower mold 1 and seals the air vent x2, the upper mold 2 moves downward to attach, so that the upper mold sleeve 21 and the lower mold sleeve 11 are pressed to the air vent, and the upper film of the air vent is attached to the upper mold sleeve 21 of the upper mold 2 and seals the air vent x2, at this time, the vacuum adsorption component 4 provides negative pressure, and during the upward movement of the upper film m1 and the downward movement of the lower film m2, the portions at the two sides of the air vent move inward gradually along the compression joint formed by the flexible modules to open the air vent k. Therefore, the membrane larger than the outer diameter part of the inflating nozzle is positioned in the pressure joint formed by the flexible modules, and the probability of inflation leakage is further reduced.

As shown in fig. 7, the inflation nozzle 5 is inserted into the air channel opening, and at this time, the upper mold 2 and the lower mold 1 are pressed against each other, so that the flexible sleeves forming the upper deformation cavity q1 and the lower deformation cavity q2 can keep flexible sealing and are arranged on the periphery of the inflation nozzle 5. Thus, the air leakage caused during the inflation can be more effectively avoided. At the moment, the upper die 2 and the lower die 1 are relatively pressed, and the air channel openings can be relatively tightened from two sides, so that the upper and lower dies are prevented from being folded or deformed to implement sealing with the inflating nozzle.

Meanwhile, when the air duct opening k is completely opened, the part of the air hole x2 is communicated with the adsorption hole x1, and the part of the air hole x2 is staggered with the adsorption hole x 1. Due to the arrangement, the flexible sleeve and the upper layer film m1 are kept attached, and the opening of the airway opening k is facilitated.

Of course, there is a case where the air holes x2 are correspondingly communicated with the adsorption holes x1, and at this time, the adsorption force is provided maximally.

In addition, the inflation end part 50 of the inflation nozzle 5 is in a frustum shape, when inflation is completed, the vacuum pumping cavity gradually releases negative pressure, the flexible sleeve is attached and reset, the inflation nozzle 5 is extruded out of the air passage opening k, and the upper film m1 and the lower film m2 are relatively flattened and closed synchronously. That is to say, the effect of flexible cover not only plays laminating diaphragm and forms flexible sealed effect with the charging connector, but also can with the charging connector cooperation in order to implement upper and lower tunic flattening and sealing.

Furthermore, the inflating nozzle comprises a cylindrical body and an inflating end part formed at the inserting end part of the cylindrical body, wherein the inflating end part is in a conical shape or a frustum shape, and the upper layer film and the lower layer film are relatively pressed and sealed at the periphery of the cylindrical body during inflation; when the inflation is finished, the vacuum pumping cavity gradually releases negative pressure, the air nozzle is actively pumped out, the flexible sleeve is attached and reset, the air nozzle is extruded out of the air channel opening, and the upper film and the lower film are relatively flattened and closed. That is to say, the effect of flexible cover not only plays the laminating diaphragm and forms flexible sealed effect with the charging connector, but also can flatten with the implementation upper and lower tunic flattening with the charging connector cooperation and seal, and the flexible cover resets simultaneously and can outwards release in can the inflation chamber that the tip diminishes gradually from inflating, and laborsaving and make things convenient for the operation of taking out of charging connector more.

In summary, the present embodiment has the following advantages:

1. the upper and lower films are relatively separated by the deformation of the flexible sleeve through vacuum adsorption to open the air channel opening, the deformation of the upper and lower films is not caused in the opening process (due to the formation of the inflation die cavity), and meanwhile, under the relative regulation of the upper and lower dies, the inflation die cavity formed by the air channel opening is matched with the inflation nozzle, so that the inflation leakage is avoided, the inflation quantity and the inflation pressure are ensured to be sufficient, in addition, necessary conditions are provided for later-stage high-quality heat sealing, the structure is simple, and the implementation is convenient;

2. the upper and lower dies are symmetrically arranged through the flexible blocks, deformation of the upper and lower films is reduced under the attaching and resetting of the flexible sleeve, and meanwhile, the air channel openings can be tightened relatively from two sides, so that the upper and lower films are prevented from being folded or deformed to implement sealing with the inflating nozzle;

3. the operation of relative opening and closing of the upper layer film and the lower layer film is automatically carried out, so that the implementation of full-automatic inflation and sealing of the gas column packaging body is facilitated; meanwhile, the adsorption force can be provided to the maximum extent under the alignment of the air holes and the adsorption holes, so that the upper and lower films are stably adsorbed on the corresponding arc-shaped groove surfaces, and the deformation of the upper and lower films is reduced.

The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims (10)

1. The utility model provides an automatic opening device of gas column packing body gas road junction which characterized in that: automatic opening device is located aerifys and seals the station, and including fixing aerify and seal the lower mould of station, be located last mould, the drive of lower mould top the lower mould with go up mould relative motion's the mould power part that opens and shuts and vacuum adsorption component, wherein the lower mould with form the evacuation chamber in the last mould respectively, just go up the bottom surface of mould with the top surface of lower mould forms inside sunken last arc wall and lower arc wall respectively, go up the arc wall with arc wall butt joint down forms and aerifys the die cavity with charging connector assorted, and constitutes be formed with a plurality of adsorption holes on the arc wall of aerifing the die cavity respectively, and the last tunic and the lower tunic of gas channel mouth are located aerifys and seals the station time, the lower mould with go up the relative laminating of mould, the vacuum adsorption component provides the negative pressure, the upper tunic upwards inwards, the tunic downward inward movement of lower tunic is in order to open the gas channel mouth, and open gas channel mouth sealing fit in last lower mould relative motion.

2. The automatic opening device for the air passage opening of the air column packaging body of claim 1, wherein: go up the mould and include inside formation last mould body, the cover of evacuation chamber are established last die sleeve on the mould body, it is located to go up the arc wall go up the bottom surface of mould body, it is the flexible cover to go up the die sleeve, wherein the flexible cover will go up the arc wall closure and form deformation chamber, just the bottom surface of flexible cover forms the gas pocket, the lower mould with when going up the relative laminating of mould, it is in to go up the laminating of tunic the bottom surface of flexible cover and will the gas pocket shutoff, the vacuum adsorption subassembly provides the negative pressure, the flexible cover with it keeps laminating upward movement to open to go up the tunic.

3. The automatic opening device of air column packing body air passage mouth of claim 2, characterized in that: when the flexible sleeve is not attached, the air holes are distributed on the bottom surface of the flexible sleeve corresponding to the upper arc-shaped groove in an array manner.

4. The automatic opening device for the air passage opening of the air column packaging body of claim 2, wherein: the upper arc-shaped groove is a semicircular groove, and the plurality of adsorption holes are distributed on the groove surface of the semicircular groove in an array manner.

5. The automatic opening device for the air vent of air column packing body of claim 2, 3 or 4, wherein: when the air channel opening is opened in the attaching mode, the air hole is partially communicated with the adsorption hole, and part of the air hole is staggered with the adsorption hole.

6. The automatic opening device of air column packing body air passage mouth of claim 5, characterized in that: the lower die and the upper die are symmetrically arranged, the flexible sleeve sleeved on the lower die body closes the lower arc-shaped groove to form a lower deformation cavity, and when the air duct opening is opened in a laminating manner, the flexible sleeve of the upper deformation cavity and the flexible sleeve of the lower deformation cavity can keep flexible sealing arrangement at the periphery of the inflating nozzle.

7. The automatic opening device of air column packing body air passage mouth of claim 6, characterized in that: the lower die body and the upper die body are flexible modules, and in the process that the upper layer film moves upwards and the lower layer film moves downwards, the parts located on the two sides of the air channel opening move inwards gradually along a compression joint formed by the flexible modules so as to open the air channel opening.

8. The automatic opening device of air column packing body air passage mouth of claim 7, characterized in that: the inflation end of the inflation nozzle is in a conical shape or a frustum shape, when inflation is completed, the vacuum pumping cavity gradually releases negative pressure, the flexible sleeve is attached and reset to extrude the inflation nozzle out of the air channel opening, and the upper layer film and the lower layer film are relatively flattened and closed.

9. The automatic opening device of air column packaging body air passage opening of claim 1, characterized in that: the lower mould is fixed aerify and seal on the station, go up the mould can the oscilaltion motion, mould power spare that opens and shuts is used for driving go up the mould relatively the lower mould is close to or keeps away from the motion.

10. The automatic opening device for the air passage opening of the air column packaging body of claim 1, wherein: the vacuum adsorption component comprises a vacuumizing interface, a vacuumizing pump and a vacuumizing pipe, wherein the vacuumizing interface, the vacuumizing pump and the vacuumizing pipe are located at the same end and are respectively communicated with the vacuumizing cavities of the upper die and the lower die.

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