Bag opening device capable of automatically discharging

Abstract

The utility model provides a bag opening device capable of automatically discharging. The bag opening device comprises a rack, the cover pressing strip fixing device is arranged on the rack and comprises a driving roller, a fixed roller and a pressing roller, the fixed roller is located on one side of the inclined upper portion of the driving roller, and the pressing roller is arranged on the rack; the bag breaking knife is telescopically and movably arranged on the rack; the bag breaking roller is arranged on the rack and located below the bag breaking cutter. The cover strip feeding device is arranged on the machine frame in a sliding mode and used for sending out the cover strip of the stripped packaging bag to one end of the machine frame. Compared with the prior art, a cover strip with a packaging bag is placed on the outer surface of the driving roller and the outer surface of the fixed roller in a tangent mode, the packaging bag on the outer surface of the cover strip is peeled off through the bag breaking cutter and the bag breaking roller, the cover strip feeding device abuts against one end of the cover strip with the opened bag to conduct automatic feeding towards one end of the machine frame, the labor intensity of workers is effectively reduced, and the production efficiency is improved. And the bag opening and feeding efficiency of the packaging bag of the cover strip is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag removing and cap feeding machines, in particular to a bag removing device capable of automatically discharging materials. Background Art

[0002] Round bags (such as bags with lids of cans) are currently mostly packaged in sealed bags to facilitate the transfer and transportation of the above materials. When unpacking the above bags, most of them are unpacked manually, and the lids are stacked and manually placed on the lid strip feeding device of the lid feeding machine for feeding, which is not only labor-intensive but also low in work efficiency.

[0003] In the prior art, the Chinese patent publication number is: CN108163303A, which discloses an automatic bag opening machine, including a frame, a paper discharging mechanism and a bag breaking mechanism, the bag breaking mechanism includes a bag breaking device and a fixing device; the fixing device is composed of an active rubber wheel, a downward pressing passive steel shaft and a steel shaft; the active rubber wheel rotates counterclockwise to drive the cover strip to rotate, and the cover strip drives the downward pressing passive steel shaft and the steel shaft to rotate; the bag breaking device includes a saw tooth and a motor driving it, and the bag breaking device is placed under the saw tooth; the saw tooth moves forward and laterally to saw through the protrusions squeezed into the cover strip.

[0004] However, in the above patent, when the packaging bag covered by the outer surface of the cover strip is torn, it cannot be automatically fed out and needs to be manually moved and fed, which increases the labor intensity. In addition, the efficiency of manual feeding is low, and the entire cover strip of the bag cannot be moved and fed at one time. Utility Model Content

[0005] The utility model aims to provide a bag unpacking device capable of automatically discharging materials, aiming to solve the problem in the prior art that the cover strip after the bag is unpacked needs to be manually moved for feeding and the cover strip after the bag is unpacked cannot be fed as a whole.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a bag unpacking device capable of automatically discharging materials, comprising: a frame; a cover strip fixing device, which is arranged on the frame, and the cover strip fixing device comprises an active roller, a fixed roller and a pressing roller, the fixed roller is located on the side obliquely above the active roller, and the pressing roller is arranged on the frame and is used to press and fix the top and the left or right side of the top of the cover strip; a bag breaking knife, which is telescopically arranged on the frame and is used to tear the packaging bag on the surface of the cover strip that is pressed and fixed; a bag breaking roller, which is arranged on the frame and is located below the bag breaking knife and is used to peel the torn packaging bag from the outer surface of the cover strip; a cover strip feeding device, which is slidably arranged on the frame and is used to feed the cover strip of the peeled packaging bag to one end of the frame.

[0007] Furthermore, the cover strip feeding device includes a slide rail, a slider and a cover push plate, the slide rail is erected above the bag breaking knife along the length direction of the frame, the slider is slidably set on the slide rail, the cover push plate is connected to the slider, and a bending portion is provided at one end of the cover push plate, and the bending portion extends to one side of the fixed roller.

[0008] Furthermore, the bending portion is provided with a push rod which is arranged parallel to and spaced from the fixed roller.

[0009] Furthermore, the pressing roller is connected to the frame via a swing buffer mechanism, and a buffer spring is provided at the end of the pressing roller.

[0010] Furthermore, the swing buffer mechanism includes two swing link frames, a connecting rod and a swing link motor, the two swing link frames are symmetrically arranged on the frame, the two swing link frames are provided with a coupling mounting slider, one end of the coupling mounting slider is provided with the buffer spring, the two ends of the pressing roller are connected to the two swing link frames through the coupling mounting slider, the two swing link frames are provided with an arc-shaped rack, the connecting rod is provided with a gear meshing with the arc-shaped rack, and one end of the connecting rod is provided with the swing link motor, which is used to drive the connecting rod to drive the pressing roller on the swing link frame to move in an arc, so as to press and fix the top of the cover strip and the left or right side of the top.

[0011] Furthermore, a telescopic cylinder for driving the bag breaking knife to move telescopically is provided at one end of the bag breaking knife.

[0012] Furthermore, the bag breaking knife is arranged along the length direction of the gland strip fixing device.

[0013] Furthermore, a knife groove is provided on the outer peripheral surface of the bag breaking roller, the bag breaking roller and the driving roller are connected by gears, and the bag breaking shaft and the driving roller move relative to each other to send the packaging bag downward.

[0014] Furthermore, an active roller driving motor is provided at one end of the active roller.

[0015] Furthermore, both ends of the bag breaking roller are telescopically arranged on the frame through sliders and springs.

[0016] The utility model provides a bag unpacking device capable of automatically discharging materials. Compared with the prior art, the cover strip with the packaging bag is placed tangent to the outer surfaces of the active roller and the fixed roller, the packaging bag on the outer surface of the cover strip is peeled off by the bag breaking knife and the bag breaking roller, and the cover strip feeding device presses against one end of the cover strip after the bag is opened to automatically feed the material to one end of the frame, which effectively reduces the labor intensity of manual labor and improves the bag unpacking and feeding efficiency of the packaging bag with the cover strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of a bag unpacking device capable of automatically discharging materials according to the utility model;

[0018] Figure 2 This is the second structural schematic diagram of a bag unpacking device capable of automatically discharging materials according to the utility model;

[0019] Figure 3 This is a schematic diagram of the main structure of a bag-unpacking device capable of automatically discharging materials according to the utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0021] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure in the BB direction

[0022] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure in the CC direction

[0023] Description of Reference Numerals

[0024] 1- Cover strip;

[0025] 10- rack;

[0026] 20-active roller; 21-fixed roller; 22-pressing roller; 23-active roller driving motor;

[0027] 30-Bag breaking knife; 31-Telescopic cylinder;

[0028] 40-bag breaking roller; 41-knife groove; 42-moving slider;

[0029] 50-slide rail; 51-sliding block; 52-push cover plate; 53-bending portion; 54-thrust rod;

[0030] 60-swing connecting rod frame; 61-connecting rod; 62-swing connecting rod motor; 63-coupling shaft mounting slider; 64-arc rack. DETAILED DESCRIPTION

[0031] The present invention is described in detail below in conjunction with specific embodiments.

[0032] In the present utility model, when directional words appear, they are used to facilitate the description of the utility model and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present utility model.

[0033] In the present invention, unless otherwise specified and limited, when terms such as "disposed on", "connected" and "connected" appear, these terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figures 1 to 6 As shown, a bag unpacking device capable of automatically discharging materials comprises a frame 10, a cover strip 1 fixing device, a bag breaking knife 30, a bag breaking roller 40 and a cover strip 1 feeding device.

[0035] The fixing device of the cover strip 1 is arranged on the frame 10, and the fixing device of the cover strip 1 includes an active roller 20, a fixed roller 21 and a pressing roller 22. The fixed roller 21 is located on the side obliquely above the active roller 20, and the pressing roller 22 is arranged on the frame 10, and is used to press and fix the top of the cover strip 1 and the left or right side of the top.

[0036] The bag-breaking knife 30 is telescopically arranged on the frame 10 and is used to tear the packaging bag on the surface of the cover strip 1 that is pressed and fixed;

[0037] The bag breaking roller 40 is disposed on the frame 10 and is located below the bag breaking knife 30, and is used to peel the torn packaging bag from the outer surface of the cover strip 1;

[0038] The cover strip 1 feeding device is slidably disposed on the frame 10 , and is used for feeding the cover strip 1 peeled from the packaging bag to one end of the frame 10 .

[0039] In the specific implementation, the cover strip 1 with the packaging bag is placed tangentially to the outer surfaces of the active roller 20 and the fixed roller 21, and the packaging bag on the outer surface of the cover strip 1 is peeled off by the bag breaking knife 30 and the bag breaking roller 40. The feeding device of the cover strip 1 pushes against one end of the cover strip 1 after the bag is removed to automatically feed the bag to one end of the frame 10, which effectively reduces the labor intensity of manual labor and improves the bag removal and feeding efficiency of the packaging bag of the cover strip 1.

[0040] In this embodiment, the cover strip 1 feeding device includes a slide rail 50, a slider 51 and a cover push plate 52. The slide rail 50 is erected above the bag breaking knife 30 along the length direction of the frame 10. The slider 51 is slidably set on the slide rail 50. The cover push plate 52 is connected to the slider 51, and a bending portion 53 is provided at one end of the cover push plate 52, and the bending portion 53 extends to one side of the fixed roller 21.

[0041] In a specific implementation, the slider 51 slides on the slide rail 50 through the pulley, the transmission belt and the pulley driving motor. When the packaging bag on the outer surface of the cover strip 1 is peeled off, the slider 51 drives the bending part 53 to slide against the rear end of the cover strip 1, and the cover strip 1 of the packaging bag to be peeled off is automatically fed and ejected to the other end of the frame 10.

[0042] In this embodiment, a push rod 54 is provided on the bending portion 53 and is spaced apart from the fixed roller 21 . The push rod 54 can push to a position close to the radial center of the cover strip 1 to prevent the cover strip 1 from tipping over during the pushing movement.

[0043] In this embodiment, the pressing roller 22 is connected to the frame 10 through a swing buffer mechanism. A buffer spring (not shown) is provided at the end of the pressing roller 22 to buffer the cover strip 1 and avoid deformation of the cover sheet in the cover strip 1.

[0044] Specifically, the swing buffer mechanism includes two swing link frames 60, a connecting rod 61 and a swing link motor 62. The two swing link frames 60 are symmetrically arranged on the frame 10. A coupling mounting slider 63 is provided on the two swing link frames 60. One end of the coupling mounting slider 63 is provided with a buffer spring (not shown). Both ends of the pressing roller 22 are connected to the two swing link frames 60 through the coupling mounting slider 63. An arc-shaped rack 64 is provided on the two swing link frames 60. A gear meshing with the arc-shaped rack 64 is provided on the connecting rod 61. A swing link motor 62 is provided at one end of the connecting rod 61 for driving the connecting rod 61 to drive the pressing roller 22 on the swing link frame 60 to move in an arc, so as to press and fix the top of the cover strip 1 and the left or right side of the top.

[0045] In addition, the advantage of pressing the cover strip 1 by the pressing roller 22 in an arc motion can also be used to adapt to cover strips 1 of different diameters.

[0046] During the specific implementation, the cover strip 1 containing the packaging bag is placed between the fixed roller 21 and the active roller 20 (the outer surface of the cover strip 1 is tangent to the fixed roller 21 and the active roller 20), and the swing link motor 62 drives the connecting rod 61 to drive the two swing link frames 60 to move along the arc, thereby driving the pressing rollers 22 connected to the two swing link frames 60 to move along the arc, pressing and fixing the top of the cover strip 1 and the left or right side of the top, and playing a buffering role when pressing the cover strip 1, the active roller 20 rotates to drive the cover strip 1 to rotate, the bag breaking knife 30 extends to tear the packaging bag wrapped on the surface of the cover strip 1, and the bag breaking roller 40 peels the torn packaging bag from the outer surface of the cover strip 1, and the feeding device then sends out the entire peeled cover strip 1.

[0047] In this embodiment, a telescopic cylinder 31 is provided at one end of the bag breaking knife 30 for driving the bag breaking knife 30 to move telescopically. The bag breaking knife 30 is driven to move telescopically on the frame 10 by the telescopic cylinder.

[0048] The bag-breaking knife 30 is arranged along the length direction of the fixing device of the cover strip 1 to avoid the packaging bag on the outer surface of the cover strip 1 not being able to be torn apart all at once due to the length problem.

[0049] In this embodiment, a knife groove 41 is provided on the outer peripheral surface of the bag breaking roller 40, and the bag breaking roller 40 and the active roller 20 are connected by gears. The bag breaking shaft and the active roller 20 move relative to each other to send the packaging bag downward to prevent the packaging bag from remaining on the surface of the cover strip 1.

[0050] In this embodiment, an active roller driving motor 23 is provided at one end of the active roller 20 to drive the active roller 20 to rotate.

[0051] In this embodiment, both ends of the bag breaking roller 40 are telescopically arranged on the frame 10 through movable sliders 5142 and springs to adapt to cover strips 1 of different diameters.

[0052] In the absence of conflict, the above-mentioned embodiments and features thereof may be combined with each other.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A bag unpacking device capable of automatically discharging materials, characterized in that: include: frame; A cover strip fixing device is arranged on the frame, and the cover strip fixing device comprises an active roller, a fixed roller and a pressing roller, wherein the fixed roller is located on a side obliquely above the active roller, and the pressing roller is arranged on the frame and is used to press and fix the top of the cover strip and the left or right side of the top; A bag-breaking knife, which is telescopically arranged on the frame and is used to tear the packaging bag on the surface of the cover strip that is pressed and fixed; a bag-breaking roller, arranged on the frame and located below the bag-breaking knife, and used for peeling the torn packaging bag from the outer surface of the cover strip; The cover strip feeding device is slidably arranged on the frame and is used for feeding the cover strip of the packaging bag to one end of the frame.

2. The bag unpacking device capable of automatically discharging materials according to claim 1, characterized in that: The cover strip feeding device includes a slide rail, a slider and a cover push plate, the slide rail is erected above the bag breaking knife along the length direction of the frame, the slider is slidably arranged on the slide rail, the cover push plate is connected to the slider, and a bending portion is provided at one end of the cover push plate, and the bending portion extends to one side of the fixed roller.

3. The bag unpacking device capable of automatically discharging materials according to claim 2, characterized in that: The bending portion is provided with a push rod which is arranged parallel to and spaced from the fixed roller.

4. The bag unpacking device capable of automatically discharging materials according to claim 1, characterized in that: The pressing roller is connected to the frame through a swing buffer mechanism, and a buffer spring is arranged at the end of the pressing roller.

5. The bag unpacking device capable of automatically discharging materials according to claim 4, characterized in that: The swing buffer mechanism includes two swing link frames, a connecting rod and a swing link motor, the two swing link frames are symmetrically arranged on the frame, the two swing link frames are provided with a coupling mounting slider, one end of the coupling mounting slider is provided with the buffer spring, the two ends of the pressing roller are connected to the two swing link frames through the coupling mounting slider, the two swing link frames are provided with arc-shaped racks, the connecting rod is provided with a gear meshing with the arc-shaped racks, and one end of the connecting rod is provided with the swing link motor, which is used to drive the connecting rod to drive the pressing roller on the swing link frame to move in an arc to press and fix the top of the cover strip and the left or right side of the top.

6. The bag unpacking device capable of automatically discharging materials according to claim 1, characterized in that: One end of the bag breaking knife is provided with a telescopic cylinder for driving the bag breaking knife to move telescopically.

7. The bag-opening device capable of automatically discharging materials according to claim 6, characterized in that: The bag breaking knife is arranged along the length direction of the gland strip fixing device.

8. The bag unpacking device capable of automatically discharging materials according to claim 1, characterized in that: The outer peripheral surface of the bag breaking roller is provided with a knife groove, and the bag breaking roller and the driving roller are connected by gears. The bag breaking roller and the driving roller move relative to each other to send the packaging bag downward.

9. The bag unpacking device capable of automatically discharging materials according to claim 8, characterized in that: An active roller driving motor is arranged at one end of the active roller.

10. The bag unpacking device capable of automatically discharging materials according to claim 1, characterized in that: The two ends of the bag breaking roller are telescopically arranged on the frame through sliding blocks and springs.

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