Film releasing mechanism capable of correcting deviation in real time and packaging machine

Abstract

A film releasing mechanism capable of correcting deviation in real time comprises a machine frame and at least one film sending-out device installed on the machine frame, the machine frame comprises a vertical installation plate, and each film sending-out device comprises an unwinding driving unit, an air expansion shaft and an axial position adjusting mechanism. A packaging machine comprises a film releasing mechanism and further comprises a packaging bag forming device, a longitudinal sealing device, a filling device, a sealing device, a shearing device, a bag conveying device and a finished product output device which are installed on a machine frame. A packaging machine comprises a film releasing mechanism and further comprises a film guiding mechanism, a film cutting mechanism, a film forming and filling mechanism and a film transverse sealing mechanism which are installed on a machine frame and sequentially distributed in the film moving direction. According to the film deviation rectifying device, the air expansion shaft can be adjusted to move in the axial direction of the air expansion shaft according to the condition of a film, the film deviation rectifying work is completed, normal production is effectively guaranteed, the product quality is greatly improved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to a film feeding mechanism and packaging machine that can correct deviations in real time. Background Technology

[0002] Traditional packaging machines, such as high-speed packaging machines for powders, typically have only one film roll in their film feeding mechanism. This makes roll changing cumbersome and requires machine downtime for manual replacement. For example, the high-speed fully automatic packaging machine disclosed in Chinese patent document CN102874423B, entitled "High-Speed ​​Fully Automatic Packaging Machine," has only one film roll in its film feeding device. When the film roll runs out, the machine must be stopped for manual replacement.

[0003] To address the aforementioned problems, improvements have been made to the film feeding mechanism. For example, Chinese patent document CN214527111U, entitled "Fully Automatic Film Splicing Device for High-Speed ​​Packaging Machine," discloses a fully automatic film splicing device for a high-speed packaging machine. This device includes a mounting plate, a film guiding mechanism for the splicing area, a splicing mechanism, and two air shafts. Its key feature is that the mounting plate has two guide grooves. The splicing mechanism includes a drive unit, a drive frame, and two splicing units. The drive unit is mounted on the back of the mounting plate, and the drive frame has two drive ends, mounted on the output end of the drive unit. The two splicing units correspond to the two guide grooves and can slide along them. The two drive ends of the drive frame are respectively connected to the two splicing units. This technology, through clamping with two splicing devices, can automatically connect the beginning of the film from one roll to the end of the film from another roll. Therefore, it can quickly and accurately bond the films of two rolls together, automatically completing the roll-changing operation without stopping the machine to wait for the roll-changing to complete, thus solving the aforementioned problems.

[0004] However, the applicant discovered that the film rolls on the two air shafts inevitably have axial deviations, which can adversely affect the subsequent processing of the delivered film. To eliminate this adverse effect, manual adjustment of the air shafts is required, moving the film rolls along the axial direction of the air shafts. However, this operation is very cumbersome and inefficient. Utility Model Content

[0005] The first objective of this invention is to provide a film roll feeding mechanism capable of real-time correction, which can adjust the position of the film roll along the axial direction of the air expansion shaft. The technical solution adopted is as follows:

[0006] A film feeding mechanism with real-time correction capability includes a frame and at least one film feeding device mounted on the frame. The frame includes a vertical mounting plate. The film feeding device includes an unwinding drive unit and an air shaft. The unwinding drive unit is mounted on the frame and positioned behind the vertical mounting plate. The unwinding drive unit is connected to the air shaft and drives it to rotate. The air shaft passes through the vertical mounting plate and extends to the front of the vertical mounting plate. The film feeding device further includes an axial position adjustment mechanism, which includes a position adjustment drive unit and a movable frame. The position adjustment drive unit is mounted on the frame and connected to the movable frame, driving it to move. The unwinding drive unit and the air shaft are respectively mounted on the movable frame. The position adjustment drive unit drives the movable frame to move axially along the air shaft. Because the position adjustment drive unit drives the movable frame to move axially along the air shaft, the unwinding drive unit mounted on the movable frame, especially the air shaft, also moves axially along the air shaft along with the movable frame. When the film is not in the correct position (i.e., deviated from the correct position, biased in front of or behind the mounting plate in the axial direction of the air shaft), the position adjustment drive unit works. The position adjustment drive unit drives the movable frame to move along the axial direction of the air shaft, so that the air shaft moves with the movable frame (along the axial direction of the air shaft) to the correct position.

[0007] In one embodiment, the film-laying mechanism further includes a manual button for controlling the operation of the position adjustment drive unit.

[0008] In another embodiment, the film unwinding mechanism further includes a control device and a detection device. The control device is electrically connected to the detection device, the position adjustment drive unit, and the unwinding drive unit, respectively. The detection device is mounted on the frame and detects the film position, sending out a detection signal. The control device receives the detection signal and controls the position adjustment drive unit and the unwinding drive unit to work, respectively.

[0009] In a preferred embodiment, the position adjustment drive unit includes a reciprocating motion component, at least one track, and at least one slider. The track is mounted on a frame and extends in a direction parallel to the axial direction of the air shaft. At least one slider is mounted on each track, and all sliders are connected to a movable frame. The reciprocating motion component is connected to the movable frame and drives all sliders to slide along all tracks through the movable frame.

[0010] A better embodiment is that the reciprocating motion component includes a first servo motor, a lead screw, a nut, and a connecting component. The first servo motor is mounted on the frame, the output shaft of the first servo motor is connected to the lead screw, the nut is sleeved on the lead screw and threadedly connected to the lead screw, and the connecting component is connected to the nut and the movable frame respectively.

[0011] In a more preferred embodiment, the reciprocating motion component further includes a lead screw holder, which is mounted on the frame, and the lead screw is rotatably mounted on the lead screw holder.

[0012] In another embodiment, the reciprocating motion component is an electric cylinder, which is mounted on the frame, and the actuating end of the electric cylinder is connected to a movable frame.

[0013] A preferred embodiment is that the detection device is an ultrasonic correction sensor.

[0014] In a preferred embodiment, the unwinding drive unit includes a second servo motor and a gear set. The second servo motor, the gear set, and the air shaft are respectively mounted on the position adjustment drive unit. One gear of the gear set is mounted on the output shaft of the second servo motor, and the other gear of the gear set is mounted on the air shaft. The second servo motor drives the air shaft to rotate through the gear set.

[0015] In a preferred embodiment, the film feeding mechanism further includes a film attaching device, and the number of film feeding devices is two, with the film attaching device located above the two film feeding devices.

[0016] The second objective of this invention is to provide a packaging machine, specifically a high-speed packaging machine, whose film feeding mechanism can automatically adjust the position of the film roll along the axial direction of the air expansion shaft. The technical solution adopted is as follows:

[0017] A packaging machine includes a film feeding mechanism, characterized in that it further includes a packaging bag forming device, a longitudinal sealing device, a filling device, a sealing device, a shearing device, a bag feeding device, and a finished product output device, which are respectively installed on the machine frame; the film feeding mechanism, the packaging bag forming device, the longitudinal sealing device, the sealing device, the bag feeding device, and the finished product output device are arranged sequentially along the conveying direction of the packaging material, the filling device is located above the longitudinal sealing device, and the shearing device and the finished product output device are respectively located below the shearing device.

[0018] The third objective of this invention is to provide a packaging machine, specifically a dual-station three-side sealing packaging machine, in which the film feeding mechanism can automatically adjust the position of the film roll along the axial direction of the air expansion shaft. The technical solution adopted is as follows:

[0019] A packaging machine includes a film feeding mechanism, characterized in that it further includes a film guiding mechanism, a film cutting mechanism, a film forming and filling mechanism, and a film horizontal sealing mechanism, which are respectively mounted on the frame and distributed sequentially along the film movement direction.

[0020] The advantages of this utility model compared to the prior art are that, due to the addition of an axial position adjustment mechanism, the air shaft can be adjusted to move along its axial direction according to the condition of the film, thus completing the film correction work, effectively ensuring normal production, greatly improving product quality, and significantly increasing work efficiency; the addition of a manual button allows for manual detection and control of the axial position adjustment mechanism for correction; and the addition of a detection device and an axial position adjustment mechanism allows for automatic adjustment of the air shaft to move along its axial direction according to the condition of the film, completing the film correction work without manual operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the membrane dispensing mechanism according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A three-dimensional structural schematic diagram of the embodiment shown;

[0023] Figure 3 yes Figure 1 A three-dimensional structural diagram of another angle of the embodiment shown;

[0024] Figure 4 yes Figure 1 A three-dimensional structural schematic diagram of the film delivery device of the embodiment shown;

[0025] Figure 5 yes Figure 1 A three-dimensional structural schematic diagram of the film delivery device of the embodiment shown from another angle;

[0026] Figure 6 yes Figure 1 The circuit block diagram of the embodiment shown is shown.

[0027] Figure 7 Is adopted Figure 1 A schematic diagram of the structure of a packaging machine with a film-feeding mechanism as shown in the embodiment;

[0028] Figure 8 Is adopted Figure 1 The schematic diagram of a dual-station three-side sealing packaging machine with a film feeding mechanism shown in the embodiment is as follows;

[0029] Figure 9 Is adopted Figure 8 A structural diagram from another angle. Detailed Implementation

[0030] like Figure 1-6As shown, in one embodiment of this application, the film feeding mechanism 6 capable of real-time correction includes a frame 1 and at least one film feeding device 3 mounted on the frame 1. The frame 1 includes a vertical mounting plate 101. The film feeding device 3 includes an unwinding drive unit 301 and an air shaft 302. The unwinding drive unit 301 is mounted on the frame 1 and is located behind the vertical mounting plate 101. The unwinding drive unit 301 is connected to the air shaft 302 and drives the air shaft 302 to rotate. The air shaft 302 passes through the vertical mounting plate 101 and extends to the front of the vertical mounting plate 101. The film feeding device 3 also includes an axial position adjustment mechanism 303. The axial position adjustment mechanism 303 includes a position adjustment drive unit 3031 and a movable frame 3032. The position adjustment drive unit 3031 is mounted on the frame 1 and is connected to the movable frame 3032, driving the movable frame 3032 to move. An unwinding drive unit 301 and an air shaft 302 are respectively mounted on the movable frame 3032. The position adjustment drive unit 3031 drives the movable frame 3032 to move axially along the air shaft 302. Because the position adjustment drive unit 3031 drives the movable frame 3032 to move axially along the air shaft 302, the unwinding drive unit 301 mounted on the movable frame 3032, and especially the air shaft 302, also move axially along the air shaft 302 along with the movable frame 3032. When the film is not in the correct position (i.e., deviating from the correct position, biased in front of or behind the mounting plate in the axial direction of the air shaft 302), the position adjustment drive unit 3031 is activated. The position adjustment drive unit 3031 drives the movable frame 3032 to move along the axial direction of the air shaft 302, so that the air shaft 302 moves with the movable frame 3032 (along the axial direction of the air shaft 302) to the correct position.

[0031] like Figure 1-6 As shown, in an optional embodiment of this application, the film feeding mechanism further includes a film receiving device 2, and the number of film delivery devices 3 is two, with the film receiving device 2 located above the two film delivery devices 3.

[0032] In one alternative embodiment of this application, the film feeding mechanism does not have a film receiving device 2, and the number of film delivery devices 3 is one.

[0033] In one alternative embodiment of this application, the film-laying mechanism further includes a manual button for controlling whether the position adjustment drive unit 3031 is operational.

[0034] like Figure 1-6As shown, in an optional embodiment of this application, the film unwinding mechanism 6 further includes a control device 4 and a detection device 5. The control device 4 is electrically connected to the detection device 5, the position adjustment drive unit 3031, and the unwinding drive unit 301, respectively. The detection device 5 is mounted on the frame 1 and detects the film position and sends a detection signal. The control device 4 receives the detection signal and controls the position adjustment drive unit 3031 and the unwinding drive unit 301 to work, respectively.

[0035] like Figure 4 , 5 As shown, in one alternative embodiment of this application, the position adjustment drive unit 3031 includes a reciprocating motion component 30311, at least one track 30312, and at least one slider 30313. The track 30312 is mounted on the frame 1 and extends in a direction parallel to the axial direction of the air shaft 302. At least one slider 30313 is mounted on each track 30312, and all sliders 30313 are connected to a movable frame 3032. The reciprocating motion component 30311 is connected to the movable frame 3032 and drives all sliders 30313 to slide along all tracks 30312 through the movable frame 3032. In this embodiment, there are two tracks 30312, and two sliders 30313 on each track 30312.

[0036] In one alternative embodiment, the number of tracks 30312 is one, and the number of sliders 30313 on each track 30312 is one.

[0037] like Figure 4 , 5 As shown, in one optional embodiment of this application, the reciprocating motion component 30311 includes a first servo motor 303111, a lead screw 303112, a nut 303113, and a connector 303114. The first servo motor 303111 is mounted on the frame 1, and the output shaft of the first servo motor 303111 is connected to the lead screw 303112. The nut 303113 is sleeved on the lead screw 303112 and threadedly connected to the lead screw 303112. The connector 303114 is connected to the nut 303113 and the movable frame 3032 respectively.

[0038] like Figure 4 , 5 As shown, in an alternative embodiment of this application, the reciprocating motion component 30311 further includes a lead screw seat 303115, which is mounted on the frame 1, and the lead screw 303112 is rotatably mounted on the lead screw seat 303115.

[0039] In one alternative embodiment of this application, the reciprocating motion component 30311 is an electric cylinder, which is mounted on the frame 1, and the actuating end of the electric cylinder is connected to the movable frame 3032.

[0040] like Figure 1 , 2 As shown, in one alternative embodiment of this application, the detection device 5 is an ultrasonic correction sensor.

[0041] like Figure 4 , 5 As shown, in an optional embodiment of this application, the unwinding drive unit 301 includes a second servo motor 3011 and a gear set 3012. The second servo motor 3011, gear set 3012, and air shaft 302 are respectively mounted on the position adjustment drive unit 3031. The gear set 3012 includes multiple gears 30121. One gear 30121 of the gear set 3012 is mounted on the output shaft of the second servo motor 3011, and the other gear 30121 of the gear set 3012 is mounted on the air shaft 302. The second servo motor 3011 drives the air shaft 302 to rotate through the gear set 3012.

[0042] like Figure 1-5 As shown, in an alternative embodiment of this application, the frame 1 further includes a horizontal support plate 102, a vertical mounting plate 101 mounted on the horizontal support plate 102, and an axial position adjustment mechanism 303 mounted on the horizontal support plate 102.

[0043] like Figure 7 As shown, a packaging machine according to one embodiment of this application is a high-speed packaging machine. It includes a film feeding mechanism 6, and also includes a packaging bag forming device 7, a longitudinal sealing device 8, a filling device 9, a sealing device, a shearing device, a bag feeding device 10, and a finished product output device 11, which are respectively installed on the frame 1. The film feeding mechanism 6, the packaging bag forming device 7, the longitudinal sealing device 8, the sealing device, the bag feeding device 10, and the finished product output device 11 are arranged sequentially along the conveying direction of the packaging material. The filling device 9 is located above the longitudinal sealing device 8, and the shearing device and the finished product output device 11 are respectively located below the shearing device.

[0044] In one alternative embodiment of this application, the packaging bag forming device 7, longitudinal sealing device 8, filling device 9, sealing device, shearing device, bag feeding device 10, and finished product output device 11 of the high-speed packaging machine all adopt the existing mechanisms and devices of CN102874423B. The film feeding mechanism 6 is an improvement on the structure of CN214527111U.

[0045] like Figure 8 , 9As shown, this application discloses a packaging machine in an optional embodiment. The packaging machine is a dual-station three-side sealing packaging machine, which includes a film feeding mechanism 6 (in this embodiment, the film feeding mechanism 6 does not have a film receiving device 2, and the number of film feeding devices 3 is one) installed on the frame (not shown) and distributed sequentially along the film movement direction, a film guiding mechanism 12, a film dividing mechanism 13, a film forming and filling mechanism 14, and a film horizontal sealing mechanism 15.

[0046] The following is combined Figure 7 The working process of the high-speed packaging machine in this embodiment is described below:

[0047] The film feeding mechanism 6 delivers the film, which is folded and formed by the packaging bag forming device 7. Then, it is longitudinally sealed by the longitudinal sealing device 8 to obtain a semi-finished packaging bag with an open top. The filling device 9 fills the semi-finished packaging bag. The filled packaging bag is continuously fed into the sealing device 10 to seal the top opening of the packaging bag. Then, it is cut by the shearing device 11 to obtain the finished packaging product (which is filled with material). The bag feeding device 12 sends it to the top of the finished product output device 11 and releases it, allowing the finished packaging product to be sent out through the finished product output device 11.

[0048] The following is combined Figure 1-6 The working process of the film-dispensing mechanism 6 in this embodiment is described below:

[0049] Both film delivery devices 3 of the film feeding mechanism 6 are equipped with film rolls 12. The film receiving device 2 of the film feeding mechanism 6 continuously and automatically receives film, enabling the two film delivery devices 3 to continuously deliver film.

[0050] When the film delivery device 3 is working, the second servo motor 3011 drives the air shaft 302 to rotate through the gear set 3012, and the film roll on the air shaft 302 delivers the film, and the film is conveyed upward.

[0051] When the film passes the detection device 5 (ultrasonic correction sensor), the detection device 5 sends a detection signal. The control device 4 receives the detection signal and controls the position adjustment drive unit 3031 to work. When the film is not in the correct position (i.e., deviates from the correct position, biased in front of or behind the mounting plate along the axial direction of the air shaft 302), the control device 4 controls the position adjustment drive unit 3031 to work. The position adjustment drive unit 3031 drives the movable frame 3032 to move along the axial direction of the air shaft 302, so that the air shaft 302 moves with the movable frame 3032 (along the axial direction of the air shaft 302) to the correct position.

[0052] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, they should all fall within the protection scope of this utility model.

Claims

1. A film feeding mechanism capable of real-time correction, comprising a frame and at least one film feeding device mounted on the frame, the frame including a vertical mounting plate, the film feeding device including an unwinding drive unit and an air shaft, the unwinding drive unit being mounted on the frame and disposed behind the vertical mounting plate, the unwinding drive unit being connected to and driving the air shaft to rotate, the air shaft passing through the vertical mounting plate and extending to the front of the vertical mounting plate, characterized in that: The film feeding device further comprises an axial position adjusting mechanism, which comprises a position adjusting driving unit, a movable frame, the position adjusting driving unit being mounted on the frame, the position adjusting driving unit being connected to the movable frame and driving the movable frame to move, the unwinding driving unit and the inflatable shaft being respectively mounted on the movable frame, the position adjusting driving unit driving the movable frame to move along the axial direction of the inflatable shaft.

2. The film placing mechanism capable of real-time deviation correction according to claim 1, wherein: The film feeding device further comprises a manual button for controlling the operation of the position adjusting driving unit.

3. The real-time correctable film placing mechanism of claim 1, wherein: The film feeding device further comprises a control device and a detection device, the control device being electrically connected to the detection device, the position adjusting driving unit and the unwinding driving unit, the detection device being mounted on the frame and detecting the position of the film to send a detection signal, the control device receiving the detection signal and controlling the operation of the position adjusting driving unit and the unwinding driving unit.

4. The film placing mechanism capable of real-time deviation correction according to claim 3, wherein: The detection device is an ultrasonic deviation correction sensor, the unwinding driving unit comprises a second servo motor and a gear set, the second servo motor, the gear set and the inflatable shaft being respectively mounted on the position adjusting driving unit, one gear of the gear set being mounted on the output shaft of the second servo motor, another gear of the gear set being mounted on the inflatable shaft, the second servo motor driving the inflatable shaft to rotate through the gear set.

5. The real-time correctable film placing mechanism of claim 1, wherein: The position adjusting driving unit comprises a reciprocating member, at least one track and at least one sliding block, the track being mounted on the frame and extending in a direction parallel to the axial direction of the inflatable shaft, at least one sliding block being mounted on each track, all the sliding blocks being connected to the movable frame, the reciprocating member being connected to the movable frame and driving all the sliding blocks to slide along all the tracks through the movable frame.

6. The real-time correctable film placing mechanism of claim 5, wherein: The reciprocating member comprises a first servo motor, a screw rod, a nut and a connecting member, the first servo motor being mounted on the frame, the output shaft of the first servo motor being connected to the screw rod, the nut being sleeved on the screw rod and being threadedly connected to the screw rod, the connecting member being respectively connected to the nut and the movable frame.

7. The real-time correctable film placing mechanism of claim 5, wherein: The reciprocating member is an electric cylinder, the electric cylinder being mounted on the frame, the action end of the electric cylinder being connected to the movable frame.

8. The real-time correctable film placing mechanism of claim 1, wherein: The film feeding device further comprises a film receiving device, the number of the film feeding devices being two, the film receiving device being located above the two film feeding devices.

9. A packaging machine comprising a film depositing mechanism as claimed in any one of the claims 1-8, characterized in that: The machine further comprises a packaging bag forming device, a longitudinal sealing device, a filling device, a sealing device, a shearing device, a bag conveying device and a finished product output device which are respectively mounted on the frame; the film feeding device, the packaging bag forming device, the longitudinal sealing device, the sealing device, the bag conveying device and the finished product output device are sequentially arranged along the conveying direction of the packaging material, the filling device being located above the longitudinal sealing device, the shearing device and the finished product output device being respectively located below the shearing device.

10. A packaging machine comprising a film depositing mechanism as claimed in any one of the claims 1-8, characterized in that: The machine further comprises a film guiding mechanism, a film dividing mechanism, a film forming and filling mechanism and a film transverse sealing mechanism which are respectively mounted on the frame and sequentially arranged along the movement direction of the film.

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