A packaging bag cutting device based on an anti-floating device

Abstract

The present invention discloses a packaging bag cutting device based on an anti-floating device, comprising a frame; the frame is sequentially equipped with an anti-floating device, a roller conveying device, and a cutting device; the roller conveying device comprises a first feeding roller and a second feeding roller, the first feeding roller and the second feeding roller are arranged at the top and the bottom; the roller bodies of the first feeding roller and the second feeding roller are both provided with a plurality of annular protrusions; the annular protrusions constitute a channel; the roller conveying device also comprises a first driving component; the anti-floating device comprises a plurality of limiting needle rods matched with the first annular gap and the second annular gap, one end of the limiting needle rod passes through the channel; the cutting device is used to cut the material conveyed by the roller conveying device. The above device design can not only neatly cut the packaging bag, but also the packaging bag will not float during the cutting process, and will not produce different cutting sizes.

Description

Technical Field

[0001] The invention relates to packaging bag cutting, and in particular to a packaging bag cutting device based on an anti-floating device. Background Art

[0002] For the production of packaging bags, it mainly includes gluing release paper and film, hot pressing, and finally cutting into single packaging bags.

[0003] Before cutting, the uncut packaging bags are transported to the cutting parts on the conveyor line in the form of a whole strip, and are cut one by one. However, due to the light material of the packaging bags, the whole strip is easy to float during the transportation process, such as floating upwards to form a bulge.

[0004] After the above-mentioned floating forms a bulge, the length of the packaging bag changes, causing the cutting device to be unable to cut accurately. As a result, the packaging bags after cutting are of different lengths. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a packaging bag cutting device based on an anti-floating device.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] A packaging bag cutting device based on an anti-floating device comprises a frame;

[0008] The frame is equipped with an anti-floating device, a roller conveying device, and a cutting device in sequence;

[0009] The roller material conveying device comprises a first feeding roller and a second feeding roller, wherein the first feeding roller and the second feeding roller are arranged at the upper and lower parts;

[0010] The roller bodies of the first feeding roller and the second feeding roller are both provided with a plurality of annular protrusions;

[0011] The annular protrusions on the first feeding roller are arranged at intervals, and a first annular gap is formed between the annular protrusions; the annular protrusions on the second feeding roller are arranged at intervals, and a second annular gap is formed between the annular protrusions;

[0012] The annular protrusion on the first feeding roller and the annular protrusion on the second feeding roller are in contact with each other;

[0013] The first annular gap and the second annular gap form a channel;

[0014] The roller material conveying device further comprises a first driving component, wherein the first driving component is used to drive the first feeding roller and the second feeding roller;

[0015] The anti-floating device comprises a plurality of limiting needle rods matched with the first annular gap and the second annular gap, and one end of the limiting needle rod passes through the channel;

[0016] The other end of the limiting needle rod is connected to a needle plate, and the limiting needle rod is connected to the needle plate;

[0017] The cutting device is used for cutting the material conveyed by the roller conveying device.

[0018] Preferably, the frame is equipped with an anti-floating device, a roller conveying device, and a cutting device in sequence from right to upper left;

[0019] The frame comprises a front frame and a rear frame, and the front frame and the rear frame are flush with each other;

[0020] The anti-floating device, the roller material conveying device and the cutting device are assembled between the front frame and the rear frame.

[0021] Preferably, the front side wall of the first feeding roller is rotatably connected to the front end frame via a rotating shaft;

[0022] The rear side wall of the first feeding roller is connected to a first gear via a rotating shaft;

[0023] The front side wall of the second feeding roller is rotatably connected to the front end frame via a rotating shaft;

[0024] The rear side wall of the second feeding roller is connected to a second gear via a rotating shaft;

[0025] The first driving component includes a driving gear meshing with the first gear and the second gear, and the driving gear is connected to a driving motor.

[0026] Preferably, the rear end of the first feeding roller passes through the rear end frame through a rotating shaft and is connected to the first gear;

[0027] The rear end of the second feeding roller passes through the rear end frame through a rotating shaft and is connected to the second gear;

[0028] A gear box is arranged on the rear side wall of the rear end frame, and the first gear, the second gear and the driving gear are assembled in the gear box.

[0029] Preferably, a strap is provided after the left end of the limiting needle rod passes through the channel, the strap is located on the left side of the first feeding roller and the second feeding roller, and the strap is spaced apart from the first feeding roller and the second feeding roller;

[0030] The left end of the limit needle rod is placed on the top of the butt plate;

[0031] The right end of the limiting needle rod is welded to the left side wall of the needle plate.

[0032] Preferably, the front and rear side walls of the needle plate are welded to the front frame and the rear frame;

[0033] The front and rear side walls of the butt plate are welded to the front frame and the rear frame.

[0034] Preferably, the cutting device is arranged on the left side of the butt board, and the cutting device comprises a knife bar, and a blade is vertically connected to the knife bar downward, and the blade is close to the left side wall of the butt board.

[0035] Preferably, the packaging bag cutting device further comprises a second driving component for driving the cutting device to move up and down.

[0036] Preferably, the second driving component comprises sliders arranged at the front and rear ends of the knife rod;

[0037] The rear side wall of the front frame and the front side wall of the rear frame are both provided with a sliding groove that cooperates with the slider;

[0038] The sliding block is connected with a cylinder.

[0039] Preferably, the slider located at the rear end of the knife rod is connected to a cylinder.

[0040] Compared with the prior art, the present invention has the following advantages:

[0041] The present invention discloses a packaging bag cutting device based on an anti-floating device. Due to the coordinated feeding method of the first feeding roller and the second feeding roller, the free end of the packaging bag will not have a large degree of freedom (the free end is shorter), and the cutting device can cut neatly. When the packaging bag passes through the first feeding roller and the second feeding process, due to the use of a limiting needle bar design, the limiting needle bar passes through the channel, that is, passes through between the first feeding roller and the second feeding roller. Therefore, during the roller feeding process, the packaging bag is still covered by the limiting needle bar, and the free end of the discharge material is not easy to float. At the same time, the packaging bag will not be displaced under friction (the packaging bag is composed of two layers, that is, the top layer and the bottom layer will not be displaced under the roller friction). BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0043] Figure 2 It is a schematic structural diagram of a roller material conveying device and a cutting device in an embodiment of the present invention;

[0044] Figure 3 is a schematic structural diagram of a first feeding roller in an embodiment of the present invention;

[0045] Figure 4 is a schematic structural diagram of a second feeding roller in an embodiment of the present invention;

[0046] Figure 5 is a position relationship diagram of the first feeding roller and the second feeding roller in an embodiment of the present invention;

[0047] Figure 6 Embodiment of the present invention Figure 5 A schematic diagram of the local enlarged structure of the A part;

[0048] Figure 7 It is a schematic structural diagram of an anti-floating device, a roller material conveying device, and a cutting device in an embodiment of the present invention;

[0049] Figure 8 is a diagram showing the connection relationship between the limiting needle bar and the needle plate in an embodiment of the present invention;

[0050] Fig. 9 1 is a top view of a limiting needle bar and a roller material conveying device in an embodiment of the present invention;

[0051] Fig.10 1 is a transmission relationship diagram of the first feeding roller and the second feeding roller in the embodiment of the present invention. DETAILED DESCRIPTION

[0052] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0053] like Figure 1-10 As shown, a packaging bag cutting device based on an anti-floating device includes a frame 1, the frame 1 includes a front frame 11 and a rear frame 12 (the front frame 11 is located in front of the rear frame 12), and the front frame 11 and the rear frame 12 are flush with each other; from right to left, the anti-floating device 4, the roller conveying device 3, and the cutting device 5 are installed between the front frame 11 and the rear frame 12.

[0054] At the same time, a discharge roller 2 is rotatably connected to the rightmost end of the frame 1, and the discharge roller 2 is used for discharging materials.

[0055] The roller material conveying device 3 is used to convey the packaging bag material to the left by roller conveying. The specific structure of the roller material conveying device 3 is as follows:

[0056] The roller conveying device 3 includes a first feeding roller 31 and a second feeding roller 32 (the first feeding roller 31 is located directly above the second feeding roller 32). The roller bodies of the first feeding roller 31 and the second feeding roller 32 are both provided with a plurality of annular protrusions 34, and the annular protrusions 34 are equidistantly distributed front and back on the corresponding first feeding roller 31 and the second feeding roller 32. The annular protrusions 34 on the first feeding roller 31 are arranged at intervals, and a first annular gap 341 is formed between the annular protrusions 34, and the annular protrusions 34 on the second feeding roller 32 are arranged at intervals, and a second annular gap 342 is formed between the annular protrusions 34;

[0057] The annular protrusion 34 on the first feed roller 31 contacts with the annular protrusion 34 on the second feed roller 32 in the middle. Meanwhile, the annular protrusion 34 on the first feed roller 31 contacts with the annular protrusion 34 on the second feed roller 32 in the middle, and their projections on the horizontal plane overlap with each other.

[0058] The first annular gap 341 and the second annular gap 342 form a channel 3411 , and the channel 3411 is oriented leftward and rightward.

[0059] The roller conveying device 3 further includes a first driving component 33, and the first driving component 33 is used to drive the first feeding roller 31 and the second feeding roller 32;

[0060] Specifically, the rear side wall of the first feeding roller 31 is connected to the first gear 311 via a rotating shaft (the rear end of the first feeding roller 31 passes through the rear end frame 12 via the rotating shaft and is connected to the first gear 311), and the front side wall of the first feeding roller 31 is rotatably connected to the front end frame 11 via a rotating shaft.

[0061] The front side wall of the second feeding roller 32 is rotatably connected to the front end frame 11 via a rotating shaft; the rear side wall of the second feeding roller 32 is connected to the second gear 321 via a rotating shaft (the rear end of the second feeding roller 32 passes through the rear end frame 12 via the rotating shaft and is connected to the second gear 321); the first driving component 33 includes a driving gear 331 meshing with the first gear 311 and the second gear 321, and the driving gear 331 is connected to a driving motor 332.

[0062] A gear box (not shown) is provided on the rear side wall of the rear frame 12, and the first gear 311, the second gear 321 and the driving gear 331 are assembled in the gear box. The output shaft of the driving motor 332 passes through the gear box and is connected to the driving gear 331.

[0063] Therefore, the driving gear 331 meshes with the first gear 311 upwardly and meshes with the second gear 321 downwardly.

[0064] In order to prevent the packaging bag materials entering and outputting to the first feeding roller 31 and the second feeding roller 32 from floating upward, an anti-floating device 4 is provided on the frame 1 .

[0065] The specific structure of the anti-floating device 4 is as follows:

[0066] The anti-floating device 4 includes a plurality of limiting needle rods 42 cooperating with the first annular gap 341 and the second annular gap 342 . One end of the limiting needle rod 42 passes through the channel 3411 (the channel 3411 is oriented left and right), and the left end of the limiting needle rod 42 passes through the channel 3411 .

[0067] Since the limiting needle rod 42 is located in the channel 3411 formed by the first annular gap 341 and the second annular gap 342 , when the first feeding roller 31 and the second feeding roller 32 rotate, the limiting needle rod 42 will not be rolled and pressed.

[0068] The limiting needle rod 42 extends out of the channel 3411 from right to left at the same time, and a strap 43 is provided at the left end of the limiting needle rod 42 (the strap is located on the left side of the first feed roller 31 and the second feed roller 32, and the strap 43 is spaced apart from the first feed roller 31 and the second feed roller 32), and the left end portion of the limiting needle rod 42 is mounted on the top of the strap 43.

[0069] At the same time, the right end of the limiting needle rod 42 is welded to a needle plate 41 toward the right (the right end of the limiting needle rod 42 is welded to the left side wall of the needle plate 41), and at the same time, the needle plate 41 is located on the right side of the first feed roller 31 and the second feed roller 32, and the needle plate 41 is spaced apart from the first feed roller 31 and the second feed roller 32).

[0070] The front and rear side walls of the needle plate 41 are welded to the front frame 11 and the rear frame 12 ; the front and rear side walls of the strap 43 are welded to the front frame 11 and the rear frame 12 .

[0071] After the packaging bag material is transported by the first feeding roller 31 and the second feeding roller 32, the cutting device 5 on the frame 1 cuts the bag material.

[0072] The specific structure of the cutting device 5 is as follows:

[0073] The cutting device 5 is arranged on the left side of the butt plate 43 . The cutting device 5 comprises a knife bar 51 . A blade 52 is vertically connected downward to the knife bar 51 . The blade 52 is closely attached to the left side wall of the butt plate 43 .

[0074] The packaging bag cutting device 5 also includes a second driving component that drives the cutting device 5 to move up and down. The second driving component includes sliders 511 arranged at the front and rear ends of the knife bar 51; correspondingly, the rear side wall of the front frame 11 and the front side wall of the rear frame 12 are both provided with sliding grooves that cooperate with the sliders 511; the sliders 511 are connected to the cylinders 53 (the sliders 511 at the rear end of the knife bar 51 are connected to the cylinders 53, and the cylinders 53 are conventional telescopic cylinders disclosed in the prior art).

[0075] Working process:

[0076] First, the unloading roller 2 unloads the material, and the unloaded packaging bag (because it is not cut, the packaging bag is a whole, in the shape of a long strip). At this time, the packaging bag passes through the anti-floating device 4, and the packaging bag is located below the limiting needle rod 42, and is limited by the limiting needle rod 42 (the limiting needle rod 42 is located below the first feeding roller 31, and the packaging bag passes below the first feeding roller 31 and above the second feeding roller 32). The limiting needle rod 42 covers the top of the packaging bag.

[0077] The packaging bag reaches the roller conveyor 3. At this time, under the interaction of the first feeding roller 31 and the second feeding roller 32, the packaging bag is discharged to the left. The packaging bag is discharged by the friction roller force of the first feeding roller 31 and the second feeding roller 32 (the packaging bag is squeezed by the annular protrusions 34 on the first feeding roller 31 and the second feeding roller 32). Due to the friction, the packaging bag is easy to float after being discharged. Because the limiting needle bar 42 passes through the channel 3411, that is, passes through the first feeding roller 31 and the second feeding roller 32, when the first feeding roller 31 and the second feeding roller 32 are discharged by the friction roller force, the packaging bag is still covered by the limiting needle bar 42, and the free end of the discharged material is not easy to float.

[0078] When reaching the cutting device 5, the cylinder 53 drives the knife rod 51 to move up and down to cut the packaging bag.

[0079] The advantages of adopting the above device design are:

[0080] By adopting the feeding method of the first feeding roller 31 and the second feeding roller 32, the free end of the packaging bag will not have a large degree of freedom (the free end is shorter), and the cutting device 5 can cut neatly. When the packaging bag passes through the first feeding roller 31 and the second feeding process, the limiting needle bar 42 is designed. The limiting needle bar 42 passes through the channel 3411, that is, passes through the first feeding roller 31 and the second feeding roller 32. Therefore, during the roller feeding process, the packaging bag is still covered by the limiting needle bar 42, and the free end of the material is not easy to float. At the same time, the packaging bag will not be displaced under friction (the packaging bag is composed of two layers, that is, the top layer and the bottom layer will not be displaced under the roller friction).

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A packaging bag cutting device based on an anti-floating device, characterized in that: Including rack; The frame is equipped with an anti-floating device, a roller conveying device, and a cutting device in sequence; The roller material conveying device comprises a first feeding roller and a second feeding roller, wherein the first feeding roller and the second feeding roller are arranged at the upper and lower parts; The roller bodies of the first feeding roller and the second feeding roller are both provided with a plurality of annular protrusions; The annular protrusions on the first feeding roller are arranged at intervals, and a first annular gap is formed between the annular protrusions; the annular protrusions on the second feeding roller are arranged at intervals, and a second annular gap is formed between the annular protrusions; The annular protrusion on the first feeding roller and the annular protrusion on the second feeding roller are in contact with each other; The first annular gap and the second annular gap form a channel; The roller material conveying device further comprises a first driving component, wherein the first driving component is used to drive the first feeding roller and the second feeding roller; The anti-floating device comprises a plurality of limiting needle rods matched with the first annular gap and the second annular gap, and one end of the limiting needle rod passes through the channel; The other end of the limiting needle rod is connected to a needle plate, and the limiting needle rod is connected to the needle plate; The cutting device is used to cut the material conveyed by the roller conveying device; A strap is provided after the left end of the limiting needle rod passes through the channel, the strap is located on the left side of the first feeding roller and the second feeding roller, and the strap is spaced apart from the first feeding roller and the second feeding roller; The left end of the limit needle rod is placed on the top of the butt plate; The right end of the limiting needle rod is welded to the left side wall of the needle plate; The front and rear side walls of the needle plate are welded to the front frame and the rear frame; The front and rear side walls of the butt plate are welded to the front frame and the rear frame; The cutting device is arranged on the left side of the strap, and the cutting device comprises a knife bar, and the knife bar is vertically connected with a blade downward, and the blade is close to the left side wall of the strap; the packaging bag cutting device also comprises a second driving component for driving the cutting device to move up and down; The second driving component includes sliders arranged at the front and rear ends of the knife rod; The rear side wall of the front frame and the front side wall of the rear frame are both provided with a sliding groove that cooperates with the slider; The slider is connected with a cylinder; The frame is equipped with an anti-floating device, a roller conveying device, and a cutting device in sequence from right to upper left; The frame comprises a front frame and a rear frame, and the front frame and the rear frame are flush with each other; The anti-floating device, roller material conveying device and cutting device are assembled between the front frame and the rear frame; The front side wall of the first feeding roller is rotatably connected to the front end frame via a rotating shaft; The rear side wall of the first feeding roller is connected to a first gear via a rotating shaft; The front side wall of the second feeding roller is rotatably connected to the front end frame via a rotating shaft; The rear side wall of the second feeding roller is connected to a second gear via a rotating shaft; The first driving component includes a driving gear meshing with the first gear and the second gear, and the driving gear is connected to a driving motor; The rear end of the first feeding roller passes through the rear end frame through a rotating shaft and is connected to the first gear; The rear end of the second feeding roller passes through the rear end frame through a rotating shaft and is connected to the second gear; A gear box is arranged on the rear side wall of the rear end frame, and the first gear, the second gear and the driving gear are assembled in the gear box.

2. The packaging bag cutting device based on the anti-floating device according to claim 1 is characterized in that: The sliding block located at the rear end of the knife rod is connected with a cylinder.

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