Air cushion processing equipment and control method for automatically adjusting air quantity of buffer air cushion

Abstract

The invention provides air cushion machining equipment and a control method for automatically adjusting the air flow of a buffer air cushion. An inflation air tap of the air cushion machining equipment comprises an air tap shell, a diaphragm, an elastic reset piece and an inductor, the first position extends out of the air outlet of the air tap shell, and the second position retracts into the air tap shell. The elastic reset piece applies an elastic force for switching to the first position to the sub-diaphragm, and the sensing end of the sensor corresponds to the sub-diaphragm to sense the sub-diaphragm at the first position, so that parameters of the air cushion film can be accurately reflected and converted into a periodically jumping signal; the processing system judges the specifications of the consumables according to the periodically hopped signals, so that the operating parameters of the consumables are adjusted; the air quantity is automatically adjusted; parameters do not need to be manually adjusted, and troubles of workers in training and new people in use are avoided for customers.

Description

Technical Field

[0001] The invention relates to the field of processing of buffer air cushions, and in particular to air cushion processing equipment and a control method for automatically adjusting the air volume of a buffer air cushion. Background Art

[0002] As cushioning air cushion products continue to become more popular in the market, the applications of air cushion products are also becoming more diversified, such as express delivery, milk powder packaging or sea transportation. In addition, during the product packaging process, there are often multiple product models waiting to be packaged, and different models of products correspond to different air cushion film consumables. For this reason, one-machine-multiple-purpose air cushion equipment is often used to achieve adjustable parameters. In this way, it is necessary to adjust different equipment operating parameters according to different types of air cushion film consumables during the packaging process, but there is also a problem, which will cause trouble for customers in worker training and newcomers. Summary of the invention

[0003] Therefore, in order to solve the above problems, the present invention provides an air cushion processing device and a control method for automatically adjusting the air volume of a buffer air cushion, so as to realize automatic adjustment of the operating parameters of consumables.

[0004] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0005] An air cushion processing device comprises an equipment main body and a film rolling rod, a transmission heat sealing device and an inflation nozzle arranged on the equipment main body, wherein the inflation nozzle is located between the film rolling rod and the transmission heat sealing device; the inflation nozzle comprises an air nozzle housing, a film separation sheet, an elastic reset member and a sensor, wherein the film separation sheet is hinged in the air nozzle housing so as to swing between a first position extending out of an air outlet of the air nozzle housing and a second position retracted into the air nozzle housing; the elastic reset member applies an elastic force to the film separation sheet to switch to the first position, and the sensing end of the sensor corresponds to the film separation sheet so as to sense the film separation sheet when it is in the first position.

[0006] Furthermore, the material of the diaphragm is metal, and the sensor is a metal sensor.

[0007] Furthermore, the sensor is a photoelectric sensor or a micro switch.

[0008] Furthermore, the elastic return member is a tension spring, one end of the tension spring is connected to the diaphragm, and the other end is connected to the air nozzle housing.

[0009] Furthermore, the elastic reset member is a torsion spring, the torsion spring is sleeved on the hinge shaft of the diaphragm, and the two connecting arms of the torsion spring are respectively connected to the diaphragm and the air nozzle housing.

[0010] Furthermore, a membrane filter device is provided between the membrane rolling rod and the inflation nozzle.

[0011] A control method for automatically adjusting the air volume of a buffer air cushion adopts the air cushion processing equipment described above, the air cushion film has a plurality of air cushion film monomers arranged in sequence, each air cushion film monomer has a bottom opening, and adjacent air cushion film monomers are sealed by side wall edge sealing; the air cushion film reaches a transmission heat sealing device from a film rolling rod through an inflation nozzle; the inflation nozzle inflates the air cushion film monomer and then seals it through a transmission heat sealing device; wherein, when the bottom opening of the air cushion film monomer cooperates with the inflation nozzle, the membrane sheet is in a first position under the action of an elastic reset member and is sensed by a sensor, and when the membrane sheet encounters the side wall edge sealing, it swings under the action of the side wall edge sealing until it retracts to a second position, and the sensor loses sensing; until the side wall edge sealing is passed, the membrane sheet switches to the first position again under the action of the elastic reset member, and the signal of the sensor realizes periodic jump, and the output end of the sensor is connected to a processing system, and the processing system judges the specifications of the consumables according to the periodic jump signal, thereby adjusting the operating parameters of the consumables.

[0012] Furthermore, the transmission of the air cushion film is uniform transmission, the transmission speed is V, the set inflation saturation is P%, the maximum inflation air volume is Fmax, the maximum consumable width that the air cushion processing equipment can match is Lmax, and the pulse width sensed by the sensor when the membrane piece is in the first position is T; then the current film width L=VT, and the output air volume F=P%×Fmax×(VT÷Lmax) that can be output according to the current width.

[0013] The technical solution provided by the present invention has the following beneficial effects:

[0014] Through the design of the air nozzle, the parameters of the air cushion film can be accurately reflected and converted into periodic jump signals; the processing system determines the specifications of the consumables based on the periodic jump signals, thereby adjusting the operating parameters of the consumables; the air volume can be automatically adjusted; there is no need to manually adjust the parameters, avoiding the trouble of customers in worker training and newcomer use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure shows a schematic diagram of the structure of the air cushion processing equipment in the embodiment;

[0016] Figure 2 The figure shows a schematic diagram of the structure of the inflation nozzle in the embodiment;

[0017] Figure 3 The figure shows a schematic diagram of the internal structure of the inflation nozzle in the embodiment, wherein the diaphragm is in the first position;

[0018] Figure 4 The figure shows a schematic diagram of the internal structure of the inflation nozzle in the embodiment, wherein the diaphragm is in the second position. DETAILED DESCRIPTION

[0019] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0020] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0021] Reference Figures 1 to 4 As shown, an air cushion processing device provided in this embodiment includes an equipment main body 1 and a film rolling rod 2, a transmission heat sealing device 4 and an air filling nozzle 3 arranged on the equipment main body 1, wherein the air filling nozzle 3 is located between the film rolling rod 2 and the transmission heat sealing device 4; the air filling nozzle 3 includes an air nozzle housing 10, a film separation sheet 20, an elastic reset member 30 and a sensor 40, and the film separation sheet 20 is hinged in the air nozzle housing 10 to extend out of the air outlet of the air nozzle housing 10 at a first position (such as Figure 3 ) and retracted to a second position within the valve housing 10 (as shown Figure 4 The elastic reset member 30 applies an elastic force to the membrane sheet 20 to switch to the first position, that is, in the absence of external force, the membrane sheet 20 is always kept in the first position under the drive of the elastic reset member 30. The sensing end of the sensor 40 corresponds to the membrane sheet 20 to sense the membrane sheet 20 in the first position.

[0022] The present embodiment also provides a control method for automatically adjusting the air volume of a buffer air cushion, using the air cushion processing equipment described above, the air cushion film has a plurality of air cushion film monomers arranged in sequence, each air cushion film monomer has a bottom opening, and adjacent air cushion film monomers are sealed by side wall edge sealing; when the operation starts, the air cushion film is rolled onto the film rolling rod 2, and the air cushion film passes from the film rolling rod 2 through the inflation nozzle 3 to the transmission heat sealing device 4; the inflation nozzle 3 inflates the air cushion film monomer, and then seals it through the transmission heat sealing device 4; the preparation of each air cushion film monomer is achieved.

[0023] Among them, when the bottom opening of the air cushion film monomer cooperates with the inflation nozzle 3, the membrane sheet 20 is in the first position under the action of the elastic reset member 30 and is sensed by the sensor 40. When the membrane sheet encounters the side wall edge seal, it swings under the action of the side wall edge seal until it retracts to the second position, and the sensor 40 loses the sense; until the side wall edge seal passes, the membrane sheet 20 switches to the first position again under the action of the elastic reset member 30. In this way, the signal of the sensor 40 realizes periodic jumps, such as the sensor 40 outputs a high level when sensing the membrane sheet 20, and outputs a low level when not sensing the membrane sheet. In the signal of the sensor 40, a high level and a low level constitute a cycle. The output end of the sensor 40 is connected to the processing system, and the processing system judges the specifications of the consumables according to the periodic jump signal, thereby adjusting the operating parameters of the consumables.

[0024] Specifically, one of the ways to adjust the operating parameters of the consumables in this embodiment is: the transmission of the air cushion film is uniform transmission, the transmission speed is V, the set inflation saturation is P%, the maximum inflation air volume is Fmax, the maximum width of the consumables that the air cushion processing equipment can match is Lmax, the speed V, the inflation saturation P%, the maximum inflation air volume Fmax and the maximum consumable width Lmax that can be matched are all known parameters, which can be preset in the processing system in advance; the sensor 40 senses that the pulse width of the membrane sheet 20 in the first position is T; then the current film width L = VT (ie V×T), that is, the width of a single air cushion film monomer L = VT; according to the current width, the output air volume F = P%×Fmax×(VT÷Lmax) that can be output. In this way, accurate adjustment of the operating parameters of the consumables is achieved. There is no need to manually adjust the parameters, which avoids the trouble of customers in worker training and newcomers' use.

[0025] It should be noted that: during the initial operation, the first one or two air cushion film monomers need to be tested as test pieces so that the standard operating parameters can be adjusted later. Therefore, the tested air cushion film monomers may cause under-inflation or over-inflation and can be scrapped, which has little effect on the overall pass rate and cost. The control method of this solution can effectively improve the processing efficiency.

[0026] Specifically, in this embodiment, the middle position of the diaphragm 20 is hinged in the air nozzle housing 10 through a hinge shaft 50, the first arm 21 of the diaphragm 20 extends out of the air outlet of the air nozzle housing 10 or retracts into the air nozzle housing 10, and the sensor 40 corresponds to the second arm 22 of the diaphragm 20. Specifically, the elastic reset member 30 is a tension spring 31, one end of which is connected to the diaphragm 20, specifically connected to the second arm 22 of the diaphragm 20, and the other end is connected to the air nozzle housing 10; thereby, an elastic force is applied to the diaphragm 20 to reset the diaphragm 20 to the first position. When the membrane 20 is in the first position, the sensor 40 senses the membrane 20. When switching to the next air cushion membrane monomer, the first arm 21 of the membrane 20 swings to the second position under the action of the side wall sealing of the air cushion membrane. At this time, the tension spring 31 is stretched to store energy; until the side wall sealing of the air cushion membrane leaves the membrane 20, the membrane 20 quickly returns to the first position under the action of the tension spring 31, and repeats this process. The structure is simple and the action is stable. Of course, in other embodiments, the structure and matching position of the membrane 20 and the elastic reset member 30 are not limited to this. For example, the membrane 20 can also adopt a single arm structure, that is, only the first arm 21 mentioned above, and the sensor 40 corresponds to the first arm 21 of the membrane 20. The elastic reset member 30 can also be replaced by other elastic devices such as a torsion spring. For example, when a torsion spring is used, the torsion spring is sleeved on the hinge shaft 50 of the membrane 20, and the two connecting arms of the torsion spring are respectively connected to the membrane 20 and the air nozzle housing 10.

[0027] The material of the diaphragm 20 is metal, and the sensor 40 is a metal sensor, so as to realize the inductive cooperation between the sensor and the diaphragm. Preferably, in order to avoid the influence of the gas nozzle housing 10 on the metal sensor, in this embodiment, the material of the gas nozzle housing 10 is set to be a non-metallic material, such as plastic. Of course, in other embodiments, the type of the sensor 30 is not limited to this, such as a photoelectric sensor or a micro switch, etc., as long as it can sense the diaphragm 20 in the first position.

[0028] A filter membrane device 5 is also provided between the film rolling rod 1 and the inflation nozzle 3, which can play a role in positioning and filtering the air cushion membrane.

[0029] Specifically, the air cushion film generates tension under the action of the damping film rolling rod 1 and the transmission heat sealing device 4, so that the air cushion film and the inflation port contact position are better fitted, thereby producing an air-tight effect. Among them, the arrangement of the membrane sheet 20 of the inflation nozzle 3 can be inserted into the bottom opening of the air cushion film unit, thereby achieving the effect of expanding the bottom opening, which can effectively eliminate the noise caused by inflation.

[0030] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An air cushion processing device, comprising a device host and a film rolling rod, a transmission heat sealing device and an air filling nozzle arranged on the device host, wherein the air filling nozzle is located between the film rolling rod and the transmission heat sealing device; characterized in that: The inflation air nozzle includes an air nozzle shell, a diaphragm, an elastic reset member and a sensor. The diaphragm is hinged in the air nozzle shell to swing between a first position extending out of the air outlet of the air nozzle shell and a second position retracted into the air nozzle shell. The elastic reset member applies an elastic force to the diaphragm to switch to the first position, and the sensing end of the sensor corresponds to the diaphragm to sense the diaphragm when it is in the first position.

2. The air cushion processing equipment according to claim 1, characterized in that: The material of the membrane sheet is metal, and the sensor is a metal sensor.

3. The air cushion processing equipment according to claim 1, characterized in that: The sensor is a photoelectric sensor or a micro switch.

4. The air cushion processing equipment according to claim 1, characterized in that: The elastic return member is a tension spring, one end of which is connected to the diaphragm, and the other end of which is connected to the air nozzle housing.

5. The air cushion processing equipment according to claim 1, characterized in that: The elastic reset member is a torsion spring, which is sleeved on the hinge shaft of the diaphragm, and two connecting arms of the torsion spring are respectively connected to the diaphragm and the air nozzle housing.

6. The air cushion processing equipment according to claim 1, characterized in that: A filter membrane device is also arranged between the membrane rolling rod and the inflation nozzle.

7. A control method for automatically adjusting the air volume of a buffer air cushion, characterized in that: The air cushion processing equipment described in any one of claims 1 to 6 is adopted, and the air cushion film has a plurality of air cushion film monomers arranged in sequence, each air cushion film monomer has a bottom opening, and adjacent air cushion film monomers are sealed by side wall edge sealing; the air cushion film reaches the transmission heat sealing device from the film rolling rod through the inflation nozzle; the inflation nozzle inflates the air cushion film monomer and then seals it through the transmission heat sealing device; wherein, when the bottom opening of the air cushion film monomer cooperates with the inflation nozzle, the membrane sheet is in the first position under the action of the elastic reset member and is sensed by the sensor, and when the membrane sheet encounters the side wall edge sealing, it swings under the action of the side wall edge sealing until it retracts to the second position, and the sensor loses sensing; until the side wall edge sealing is passed, the membrane sheet switches to the first position again under the action of the elastic reset member, and the signal of the sensor realizes periodic jump, and the output end of the sensor is connected to the processing system, and the processing system judges the specifications of the consumables according to the periodic jump signal, thereby adjusting the operating parameters of the consumables.

8. The control method for automatically adjusting the air volume of a buffer air cushion according to claim 7, characterized in that: The air cushion film is transmitted at a uniform speed, the transmission speed is V, the set inflation saturation is P%, the maximum inflation air volume is Fmax, the maximum consumable width that the air cushion processing equipment can match is Lmax, and the pulse width sensed by the sensor when the membrane piece is in the first position is T; then the current film width L=VT, and the output air volume that can be output according to the current width is F=P%×Fmax×(VT÷Lmax).

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