Film blowing device of film packaging machine and film blowing machine

Abstract

The utility model provides a film blowing device of a film packaging machine and the film blowing machine, and relates to the technical field of film packaging. The film blowing device comprises a transverse moving assembly and an air blowing assembly, the transverse moving assembly is connected with a mounting plate, an extrusion plate is mounted on the side wall of the mounting plate and used for making contact with a coiled film, a pressure sensor is arranged between the extrusion plate and the mounting plate, the mounting plate is rotationally connected with a connecting rod through a damping rotating shaft, and the connecting rod is connected with the air blowing assembly. The connecting rod is connected with a hollow pipe with the two ends sealed, a plurality of air outlet holes are formed in the side wall of the hollow pipe, one side of the hollow pipe is further connected with an air guide pipe, and the air guide pipe is connected with the air blowing assembly. In the using process, air is blown through the air blowing assembly and sprayed out along the air outlet holes, so that a rolled film and an extending film cannot make contact, static electricity cannot be generated due to friction, the probability that the film is damaged in the packaging process is reduced, and pillow packaging can be carried out smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of film packaging, in particular to a film blowing device of a film packaging machine. Background Art

[0002] Film packaging of goods and articles is a common method in existing packaging technology. Film packaging not only looks beautiful, but also provides good protection for the products. In the film packaging process, using PE film is a common method.

[0003] The film supply mechanism of the packaging machine drives the PE film to roll and deliver the single-layer PE film when the cigarette is packed. However, in actual work, due to the material of the PE film, the PE film carries a lot of static electricity, which is easy to cause adhesion and packaging damage.

[0004] Therefore, we propose a film blowing device for a film packaging machine and a film blowing machine to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a film blowing device for a film packaging machine and a film blowing machine, which solves the problem that PE film is prone to carry static electricity during the packaging process, resulting in packaging damage.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A film blowing device for a film packaging machine comprises a transverse shifting assembly and an air blowing assembly, wherein the transverse shifting assembly is connected to a mounting plate, a side wall of the mounting plate is mounted with an extrusion plate, the extrusion plate is used to contact with a rolled film, a pressure sensor is arranged between the extrusion plate and the mounting plate, the mounting plate is rotatably connected to a connecting rod via a damping shaft, a hollow tube sealed at both ends is connected to the connecting rod, a plurality of air outlet holes are formed on the side wall of the hollow tube, an air guide tube is also connected to one side of the hollow tube, the air guide tube is connected to the air blowing assembly, and an electromagnetic valve is also arranged on the air guide tube, the electromagnetic valve is electrically connected to the transverse shifting assembly.

[0008] In a new embodiment, the transverse movement assembly includes a drive motor, the output shaft of the drive motor is connected to a ball screw, the ball screw is connected to a moving part, the side wall of the moving part is connected to an inclined diagonal rod, one end of the inclined rod is connected to the mounting plate, and the moving part is configured to slide along the trajectory of the ball screw.

[0009] In a new embodiment, a fixed slide rail is provided on the side wall of the ball screw, the slide rail is arranged parallel to the ball screw, a slide member is slidably connected to the slide rail, and the slide member is connected to the moving member.

[0010] In a new embodiment, the extrusion plate includes a connecting portion and an extrusion portion, a side of the extrusion portion close to the rolled film is configured as a concave arc surface, and the periphery of the extrusion portion is configured as a round chamfer.

[0011] In a new embodiment, the connecting portion is connected to a plurality of guide pillars, a plurality of guide holes are formed on the side wall of the mounting plate, and the guide pillars pass through the guide holes and contact the inner walls of the guide holes.

[0012] In a new embodiment, one end of the guide column away from the connecting portion is detachably connected to a clamping block, and the size of the clamping block is larger than the size of the guide hole.

[0013] In a new embodiment, the air guide tube is made of soft material.

[0014] A film blowing machine, characterized in that it comprises a film blowing machine body, and

[0015] The above-mentioned film blowing device.

[0016] The utility model provides a film blowing device and a film blowing machine for a film packaging machine. Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Blow air through the blowing assembly and spray it along the air outlet, so that air can be blown to the connection between the rolled film and the extended film to prevent them from contacting each other, thereby preventing static electricity from being generated due to friction, so as to reduce the probability of film damage during the packaging process and ensure that the pillow packaging can proceed smoothly.

[0018] 2. The ball screw drives the moving parts to move, so that the extrusion plate contacts the rolled film to ensure that the rolled film will not loosen during rotation. In addition, it can also drive the hollow tube to move so that the hollow tube can always be close to the connection between the rolled film and the extended film, so as to better limit the generation of static electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a structural schematic diagram of a film blowing device of a film packaging machine in an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure of the mounting plate and the extrusion plate in the embodiment of the utility model;

[0022] The reference numerals in the figure are set as: transverse movement component 1, drive motor 101, ball screw 102, inclined rod 103, moving part 104, blowing component 2, mounting plate 3, extrusion plate 4, connecting part 401, extrusion part 402, pressure sensor 5, damping shaft 6, connecting rod 7, hollow tube 8, air guide tube 9, solenoid valve 10, guide column 11, block 12, slide rail 13, slide 14. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The embodiment of the present application solves the problem that PE film is prone to carry static electricity and cause packaging damage during the packaging process by providing a film blowing device and a film blowing machine for a film packaging machine.

[0025] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0026] In the embodiment of the utility model, after repeated observations, it was found that the adhesion caused by static electricity was caused when the single-layer PE film was sent out from the PE film roll body. The idea is to install a porous hollow tube 8 above the connection between the single-layer PE film and the PE film roll body and connect it to compressed air. Then the signal for transmitting the PE film is taken out and connected to the solenoid valve 10, and the signal is transmitted to the solenoid valve 10 at the moment of transmitting the PE film. The solenoid valve 10 then controls the compressed air to blow out, and the external force is applied to the PE film and the roll through the porous hollow tube 8. Then the single-layer PE film and the PE film roll body are separated by compressed air, which effectively prevents adhesion caused by static electricity.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Example:

[0029] Reference Figure 1 , Figure 2A film blowing device of a film packaging machine comprises a transverse movement component 1 and a blowing component 2, wherein the transverse movement component 1 is connected to a mounting plate 3, a side wall of the mounting plate 3 is mounted with an extrusion plate 4, the extrusion plate 4 is used to contact with a rolled film, a pressure sensor 5 is arranged between the extrusion plate 4 and the mounting plate 3, the mounting plate 3 is rotatably connected with a connecting rod 7 through a damping shaft 6, a hollow tube 8 sealed at both ends is connected to the connecting rod 7, a plurality of air outlet holes are opened on the side wall of the hollow tube 8, an air guide tube 9 is also connected to one side of the hollow tube 8, the air guide tube 9 is connected to the blowing component 2, and an electromagnetic valve 10 is also arranged on the air guide tube 9, the electromagnetic valve 10 is electrically connected to the transverse movement component 1.

[0030] The solenoid valve 10 can be electrically connected to the motor that rotates the rolled film. Once the rolled film is rotated and extended, the solenoid valve 10 opens, and the blowing assembly 2 blows air along the air guide pipe 9 and the hollow tube 8, which is quick and convenient.

[0031] The damping shaft 6 is rotatably connected to the connecting rod 7, so as to facilitate the adjustment of the position and angle of the hollow tube 8, avoid the hollow tube 8 from contacting the film during the lateral movement, and ensure that the hollow tube 8 is closer to the connection between the rolled film and the extended film.

[0032] In a new embodiment, the transverse movement assembly 1 includes a drive motor 101, the output shaft of the drive motor 101 is connected to a ball screw 102, the ball screw 102 is connected to a moving part 104, the side wall of the moving part 104 is connected to an inclined diagonal rod 103, one end of the inclined rod 103 is connected to the mounting plate 3, and the moving part 104 is configured to slide along the trajectory of the ball screw 102.

[0033] When the driving motor 101 is working, it can drive the ball screw 102 to rotate, and through cooperation with the moving part 104, it drives the moving part 104 to move along the trajectory of the ball screw 102. The moving part 104 drives the inclined rod 103 to move, and the inclined rod 103 drives the mounting plate 3 to move, so that the extrusion plate 4 is close to the rolled film, and can also drive the hollow tube 8 to be close to the connection between the rolled film and the extended film.

[0034] In a new embodiment, a fixed slide rail 13 is provided on the side wall of the ball screw 102 . The slide rail 13 is arranged parallel to the ball screw 102 . A slide member 14 is slidably connected to the slide rail 13 , and the slide member 14 is connected to the moving member 104 .

[0035] The slide rail 13 can be fixedly mounted on the bracket to ensure that the moving member 104 does not rotate. The sliding member slides along the slide rail 13, thereby driving the moving member 104 to slide.

[0036] In a new embodiment, the extrusion plate 4 includes a connecting portion 401 and an extrusion portion 402 , a side of the extrusion portion 402 close to the rolled film is configured as a concave arc surface, and the periphery of the extrusion portion 402 is configured as a round chamfer.

[0037] The squeezing portion 402 is in a concave arc shape, which can better squeeze the rolled film and minimize the possibility of the rolled film being scattered, while the connecting portion 401 can be connected to the guide column 11 to facilitate the pressure sensor 5 to perform measurement.

[0038] In a new embodiment, the connecting portion 401 is connected to a plurality of guide pillars 11 , and a plurality of guide holes are formed on the side wall of the mounting plate 3 . The guide pillars 11 pass through the guide holes and contact the inner walls of the guide holes.

[0039] By providing the guide pillars 11 and the guide holes, the extrusion plate 4 can move freely, thereby generating pressure on the pressure sensor 5 , making it easier for the pressure sensor 5 to perform measurements.

[0040] In a new embodiment, one end of the guide pillar 11 away from the connecting portion 401 is detachably connected to a clamping block 12 , and the size of the clamping block 12 is larger than the size of the guide hole.

[0041] The clamping of the clamping block 12 can prevent the guide column 11 from being separated from the guide hole, and prevent the extrusion plate 4 from being separated from the mounting plate 3. The detachable arrangement can be manually disassembled to facilitate the removal of the pressure sensor 5.

[0042] In a new embodiment, the air guide tube 9 is made of soft material.

[0043] In this way, when the mounting plate 3 moves, the air guide tube 9 can move smoothly and deform, thereby enabling the air guide tube 9 to play a good air guiding role.

[0044] A film blowing machine, comprising a film blowing machine body, and

[0045] The above-mentioned film blowing device.

[0046] In actual use, the utility model squeezes the side wall of the rolled film through the squeezing plate 4 to ensure that the film is not easy to spread when it is extended. In the process of film extension, air is blown through the blowing component 2 and discharged from the air pipe and the air outlet along the air guide pipe 9. The airflow of the air outlet is directed toward the connection between the extended film and the rolled film, so that friction does not occur between the extended film and the rolled film, and static electricity is not generated. In this way, the protective film will not be damaged due to static electricity during the packaging process.

[0047] If there is static electricity on the film, the film will be more tightly attached to the product due to the adsorption of static electricity. Then, during packaging, the film will be squeezed against the product, causing the film to be damaged.

[0048] After losing static electricity, the film will not be tightly attached to the product, so no major damage will occur during packaging.

[0049] As the rolled film continues to seep out, the thickness of the roll becomes less, and the pressure measured by the pressure sensor 5 becomes smaller or even disappears. When the value measured by the pressure sensor 5 is less than the preset value, for example, the preset value is 0.1, and the measured value is 0, the pressure sensor 5 sends a signal to the drive motor 101, and the drive motor 101 drives the mounting plate 3 to move closer to the rolled film. At this time, the pressure sensor 5 will re-measure a value that is not 0, and then the drive motor 101 will stop rotating. When the mounting plate 3 moves, it can also drive the hollow tube 8 to move, so that the hollow tube 8 continues to approach the connection between the rolled film and the extended film.

[0050] When the rolled film gradually decreases and becomes thinner, the connecting rod 7 can also be turned to adjust the height of the connecting rod 7 to avoid friction between the hollow tube 8 and the film.

[0051] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0052] 1. Blow air through the blowing component 2 and spray it along the air outlet, so that the rolled film and the extended film will not contact each other, and static electricity will not be generated due to friction, so as to reduce the probability of film damage during the packaging process, and the pillow packaging can be carried out smoothly.

[0053] 2. The moving part 104 is driven to move by the ball screw 102, so that the extrusion plate 4 is in contact with the rolled film to ensure that the rolled film will not loosen during rotation. In addition, the hollow tube 8 can be driven to move so that the hollow tube 8 can always be close to the connection between the rolled film and the extended film, so as to better limit the generation of static electricity.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A film blowing device for a film packaging machine, characterized in that: The invention comprises a transverse shifting assembly (1) and an air blowing assembly (2), wherein the transverse shifting assembly (1) is connected to a mounting plate (3), a side wall of the mounting plate (3) is mounted with an extrusion plate (4), the extrusion plate (4) is used to contact with a rolled film, a pressure sensor (5) is arranged between the extrusion plate (4) and the mounting plate (3), the mounting plate (3) is rotatably connected to a connecting rod (7) via a damping shaft (6), a hollow tube (8) sealed at both ends is connected to the connecting rod (7), a plurality of air outlet holes are provided on the side wall of the hollow tube (8), an air guide tube (9) is also connected to one side of the hollow tube (8), the air guide tube (9) is connected to the air blowing assembly (2), and an electromagnetic valve (10) is also arranged on the air guide tube (9), the electromagnetic valve (10) is electrically connected to the transverse shifting assembly (1).

2. The film blowing device according to claim 1, characterized in that: The transverse movement assembly (1) comprises a driving motor (101), the output shaft of the driving motor (101) is connected to a ball screw (102), the ball screw (102) is connected to a moving part (104), the side wall of the moving part (104) is connected to an inclined inclined rod (103), one end of the inclined rod (103) is connected to the mounting plate (3), and the moving part (104) is configured to slide along the track of the ball screw (102).

3. The film blowing device according to claim 2, characterized in that: A fixed slide rail (13) is provided on the side wall of the ball screw (102), the slide rail (13) is arranged parallel to the ball screw (102), a slide member (14) is slidably connected to the slide rail (13), and the slide member (14) is connected to the moving member (104).

4. The film blowing device according to claim 1, characterized in that: The extrusion plate (4) comprises a connecting portion (401) and an extrusion portion (402); a side of the extrusion portion (402) close to the rolled film is configured as a concave arc surface, and a periphery of the extrusion portion (402) is configured as a rounded chamfer.

5. The film blowing device according to claim 4, characterized in that: The connecting portion (401) is connected to a plurality of guide pillars (11), a side wall of the mounting plate (3) is provided with a plurality of guide holes, and the guide pillars (11) pass through the guide holes and contact the inner walls of the guide holes.

6. The film blowing device according to claim 5, characterized in that: One end of the guide column (11) away from the connecting portion (401) is detachably connected to a clamping block (12), and the size of the clamping block (12) is larger than the size of the guide hole.

7. The film blowing device according to claim 1, characterized in that: The air guide tube (9) is made of soft material.

8. A film blowing machine, characterized in that: The invention comprises a film blowing machine body and a film blowing device as claimed in any one of claims 1 to 7.

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