Device and method for removing outer packaging bag of box

Abstract

The present invention discloses a device and method for removing outer packaging bags from strip boxes, comprising a conveyor belt conveyor I, a telescopic material removal assembly, and a conveyor belt conveyor II. The telescopic material removal assembly comprises a telescopic rod, a pull rod rotatably connected to the end of the telescopic rod, a driving member for driving the telescopic rod to move forward and backward, and a strip box channel located below the starting point of the telescopic rod. The strip box channel comprises an adjustment frame for adjusting the width of the strip box channel and a rough chamfered block located inside the adjustment frame. In this application, the strip box is conveyed from the conveyor belt conveyor I through the strip box channel and then to the conveyor belt conveyor II. When the strip box passes through the strip box channel, the spring is in a compressed state, applying a certain pressure to the strip box. The friction between the rough chamfered block and the outer packaging bag is greater than the friction between the outer packaging bag and the strip box. The friction difference is used to peel off the outer packaging bag, thereby reducing labor costs, improving work efficiency, protecting the workshop production environment, and realizing the automation of the strip box packaging bag removal work.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette making equipment, and in particular to a device and method for removing outer packaging bags of cigarette boxes. Background Art

[0002] Currently, when producing Lotus series special-shaped cigarettes, cigarette manufacturers rely on manual removal of the outer packaging bags from the cartons to feed the cartons filling machine. Manual removal of the outer packaging bags from the cartons is labor-intensive, inefficient, and prone to damage to the cartons. The present invention provides a device and method for removing the outer packaging bags from the cartons, enabling efficient and rapid removal of the outer packaging bags from the cartons. Summary of the Invention

[0003] In order to solve the above problems, the present application provides a device and method for removing the outer packaging bag of a carton, so as to achieve the effect of efficiently removing the outer packaging bag of the carton.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A device for removing outer packaging bags from strip boxes, comprising a conveyor belt I, a telescopic material removal assembly located above the strip boxes, and a conveyor belt II arranged parallel and offset with the conveyor belt I and partially overlapping with it in the vertical direction. The telescopic material removal assembly includes a telescopic rod, a pull rod rotatably connected to the end of the telescopic rod, a driving member for driving the telescopic rod forward and backward, and a strip box channel located below the starting point of the telescopic rod. The strip box channel is located in the partially overlapping area between the conveyor belts I and II. The strip box channel includes an adjustment frame for adjusting the width of the strip box channel and a rough chamfer block located inside the adjustment frame.

[0006] When removing the outer packaging bag, the telescopic rod contracts from the initial extended state, and the pull rod is in a dropped state, so as to transfer the strip box from the conveyor belt I through the strip box channel and then to the conveyor belt II, and the outer packaging bag is peeled off through the friction difference between the outer packaging bag, the strip box and the rough chamfered block.

[0007] As an improvement of the above-mentioned scheme, the conveyor belt machine II includes a belt for conveying strip boxes, and a guide roller group is provided on the upper middle part thereof, so that when the belt is transmitted to the guide roller group, it first bends downward in an "S" shape, and then is transmitted upward in a slope. The strip boxes are vertically transferred to the conveyor belt machine II. When the longitudinally placed strip boxes pass through the guide roller group, the strip boxes fall down and are placed horizontally and conveyed upward along the slope of the belt to increase the contact area between the strip boxes and the belt.

[0008] As an improvement to the above solution, a positioning baffle is provided at the output end of the conveyor belt machine I, and a material detection device is provided on the inner side of the positioning baffle.

[0009] As an improvement to the above solution, a trumpet-shaped negative pressure suction port is provided above the box channel for sucking the peeled outer packaging bag.

[0010] As an improvement of the above solution, the rough chamfered block is made of polyurethane.

[0011] As an improvement to the above solution, the driving member is a cylinder.

[0012] As an improvement of the above solution, the adjustment frame includes a crossbeam and two vertical rods located at both ends of the crossbeam. One vertical rod is fixedly connected to the crossbeam, and a spring is provided on the outside of the other vertical rod to adjust the width of the two inner sides of the box channel.

[0013] As an improvement to the above scheme, the number of the bar box channels is two, the telescopic rod is located in the middle position of the two bar box channels, the pull rod includes a cross bar and two material picking hooks with the two end ends of the cross bar as the rotation center, the two material picking hooks are arranged in a mirror image at the two end ends of the cross bar, and the spacing between them is larger than the spacing between the two bar box channels by the thickness of a bar box, so that the end of the material picking hook is facing the center position of the side of the bar box to ensure that the two bar boxes pass through the bar box channel smoothly at the same time.

[0014] As an improvement to the above solution, the driving member is connected to two fixing brackets for fixing the driving member, which are respectively fixedly connected to both sides of the conveyor belt machine II.

[0015] The present application also provides a method for removing the outer packaging bag of a carton, which is applicable to any of the above-mentioned devices for removing the outer packaging bag of a carton, and the method comprises:

[0016] S1: Carton conveying and positioning

[0017] The boxes are placed vertically on the conveyor belt I and transported forward. Under the blockage of the positioning baffle, the boxes are stacked in a row close to the output end of the conveyor belt I so that the retracting material taking device can take the material.

[0018] S2: Automatic material collection

[0019] When the material detection device detects the strip box, the telescopic material picking assembly picks up the material from the output end of the conveyor belt conveyor I. The telescopic rod retracts from the initial extended state, and the pull rod is in the dropped state, so as to transport the strip box from the conveyor belt conveyor I through the strip box channel and then to the conveyor belt conveyor II.

[0020] S3: Packaging bag stripping and collection

[0021] During the automatic material picking process, when the strip box passes through the strip box channel, the spring on the outside of the vertical rod is in a compressed state. The spring tension drives the rough chamfered block fixedly connected to the vertical rod to exert pressure on the strip box. The friction between the rough chamfered block and the outer bag is greater than the friction between the outer bag and the strip box. The outer bag is removed by utilizing the friction difference. The removed outer bag is collected by the negative pressure suction port above the strip box channel.

[0022] The beneficial effects brought by the present invention are:

[0023] The present application designs a device and method for removing the outer packaging bag of a strip box. The strip box is conveyed from a conveyor belt machine I through a strip box channel and then to a conveyor belt machine II. When the strip box passes through the strip box channel, the spring is in a compressed state, exerting a certain pressure on the strip box. The friction between the rough chamfered block made of polyurethane and the outer packaging bag is greater than the friction between the outer packaging bag and the strip box. The friction difference is used to peel off the outer packaging bag, which reduces labor costs, improves work efficiency, protects the workshop production environment, and realizes the automation of the strip box packaging bag removal work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Attachment Figure 1 Schematic diagram of the structure of the device for removing the outer packaging bag of the box of the present application;

[0026] Attachment Figure 2 It is a partial enlarged view of the device for removing the outer packaging bag of the box of the present application;

[0027] Attachment Figure 3 This is a schematic structural diagram of the telescopic material taking assembly (excluding the strip box channel) of the present application;

[0028] Attachment Figure 4 It is a structural diagram of the box channel of the present application;

[0029] Attachment Figure 5 It is a structural diagram of the belt of this application.

[0030] In the figure: A, strip box; 1, conveyor belt conveyor I; 11, positioning baffle; 2, conveyor belt conveyor II; 21, belt; 22, guide roller I; 23, guide roller II; 24, guide roller III; 3, pull rod; 31, cross bar; 32, material picking hook; 4, telescopic rod; 5, strip box channel; 51, vertical rod; 52, rough chamfering block; 6, cylinder; 61, fixed bracket. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper side", "lower side", "upper end", "two ends", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In the present invention, unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections, mechanical connections, direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0034] Example 1

[0035] Reference Figure 1-4 A device for removing outer packaging bags from strip boxes comprises a conveyor belt I1, a telescopic material removal assembly positioned above the strip boxes, and a conveyor belt II2. The upper surfaces of the belts of conveyor belts I1 and II2 are located on the same horizontal plane. They are arranged parallel and offset, with some vertical overlap (the conveying directions of conveyor belts I1 and II2 are horizontal, and the direction perpendicular to them is vertical). This means that the output end of conveyor belt I1 and the input end of conveyor belt II2 are vertically aligned.

[0036] The telescopic material removal assembly comprises a telescopic rod 4, a pull rod 3 pivotally connected to the end of the telescopic rod 4, a cylinder 6 that drives the telescopic rod 4 back and forth, and two cassette channels 5 located below the starting point of the telescopic rod 4. The cassette channels 5 are used to remove the outer packaging bags from the cassettes. Two fixing brackets 61 are attached to the cylinder 6 to secure the cylinder body, one fixedly connected to either side of the conveyor belt II 2. The cassette channels 5 are located between the partially overlapping areas of the conveyor belts I 1 and II 2, and each cassette channel 5 can accommodate a longitudinally positioned cassette. Above each cassette channel 5, a trumpet-shaped negative pressure suction port is located to suck in the removed outer packaging bags. The negative pressure is achieved using compressed air using the Venturi principle. The telescopic rod 4 is located midway between the two cassette channels 5. The pull rod 3 includes a crossbar 31 and two cassette hooks 32 that rotate around the ends of the crossbar 31, allowing the hooks 32 to be raised or lowered. Two retrieving hooks 32 are mirror-imaged at each end of the crossbar 31, separated by a distance equal to the thickness of three cassettes. When the pull rod 3 is in the lowered position, the ends of the retrieving hooks 32 face the center of the cassette side, ensuring that both cassettes can pass smoothly and simultaneously through the cassette passage 5. The cassette passage 5 includes a steel adjustment frame for adjusting the width of the cassette passage 5. This adjustment frame comprises a crossbar and two vertical rods 51 at each end. Each vertical rod 51 has a coarsely chamfered block 52 made of polyurethane fixed to its inner side. One vertical rod is fixed to the crossbar, while the other vertical rod is attached to a spring with a fixed block at its other end. The spring allows the vertical rod to move left and right to adjust the width of the inner side of the cassette passage 5. During the automatic retrieving process, the spring on the outer side of the vertical rod is compressed as the cassette passes through the cassette passage. The spring tension drives the coarsely chamfered block fixed to the vertical rod, applying pressure to the cassette. This friction difference between the outer packaging bag, the cassette, and the coarsely chamfered block 52 allows the outer packaging bag to be peeled off.

[0037] A positioning baffle 11 is installed at the output end of the conveyor belt conveyor 11, ensuring that the conveying boxes are aligned and closely packed together at the output end of the conveyor belt conveyor 11. A material detection device is installed inside the positioning baffle 11. When the box is within the detection range of the material detection device, the material detection device transmits a signal to the telescopic material reclaiming assembly to reclaim the material.

[0038] See Figure 5The conveyor belt machine II2 includes a belt 21 for conveying the strip box A, and a guide roller group consisting of three guide rollers is provided on the upper middle part of the belt 21, so that when the belt 21 is transmitted to the guide roller group, it first bends downward in an "S" shape and then transmits upward in a slope. The "S"-shaped downward bend of the belt 21 includes an outer convex surface and an inner concave surface formed in sequence. The guide roller group includes a guide roller I22 arranged in close contact with the inner side of the outer convex surface, a guide roller II23 arranged in close contact with the outer side of the inner concave surface, and a guide roller III24 arranged in close contact with the inner side of the highest point of the slope of the belt 21. The strip box A is vertically transferred to the conveyor belt machine II. When the longitudinally placed strip box passes through the guide roller group, the strip box A falls down and is placed horizontally and transported upward along the slope of the belt 21 to increase the contact area between the strip box A and the belt 21, so that the strip box A can run smoothly for the operation of the subsequent process.

[0039] When the material detection device detects a cassette, the telescopic rod 4 retracts from its initially extended position, and the pull rod 3 descends. The ends of the two material-removing hooks 32, facing the center of the cassette's side, retract as the telescopic rod 4 retracts, transporting the cassette from conveyor belt I1 through cassette channel 5 and onto conveyor belt II2. As the cassette passes through cassette channel 5, the brackets on one side of the adjustment frame move inward, applying a 4.9 Newton pressure to the cassette. The friction between the roughened polyurethane chamfers 52 and the outer bag is greater than the friction between the outer bag and the cassette, leveraging this friction difference to remove the outer bag from the cassette. After the outer bag is removed, the negative pressure suction port above cassette channel 5 collects it and deposits it in a designated location. After the outer bag is removed, the cassette is transported via conveyor belt II2 to the subsequent stacking buffer. Once the outer bag is removed, the telescopic rod 4 extends outward from its retracted position, and the pull rod 3, held in place by the cassette, rises and extends outward from above the cassette, following the telescopic rod 4.

[0040] Example 2

[0041] The present application also provides a method for removing the outer packaging bag of a carton, which is applied to the device for removing the outer packaging bag of a carton in the above-mentioned embodiment 1, and comprises:

[0042] S1: Carton conveying and positioning

[0043] The strip boxes are placed vertically on the conveyor belt I1 and transported forward. Under the obstruction of the positioning baffle 11, the strip boxes are stacked in a row close to the output end of the conveyor belt I1 so that the retracting material taking device can take the material.

[0044] S2: Automatic material collection

[0045] When the material detection device detects the strip box, the telescopic material picking assembly picks up the material from the output end of the conveyor belt conveyor Ⅰ1, the telescopic rod 4 retracts from the initial extended state, and the pull rod 3 is in the dropped state, so as to transport the strip box from the conveyor belt conveyor Ⅰ1 through the strip box channel 5 and then to the conveyor belt conveyor Ⅱ2;

[0046] S3: Packaging bag stripping and collection

[0047] During the automatic material picking process, when the strip box passes through the strip box channel, the spring on the outside of the vertical rod is in a compressed state. The spring tension drives the rough chamfered block fixedly connected to the vertical rod to exert pressure on the strip box. The friction between the rough chamfered block and the outer bag is greater than the friction between the outer bag and the strip box. The outer bag is removed by utilizing the friction difference. The removed outer bag is collected by the negative pressure suction port above the strip box channel.

[0048] It should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for removing the outer packaging bag of a box, characterized in that: The invention comprises a conveyor belt I, a telescopic material-retrieving assembly located above a strip box, and a conveyor belt II arranged parallel to and offset from the conveyor belt I and having a partially vertically overlapping area therewith. The telescopic material-retrieving assembly comprises a telescopic rod, a pull rod rotatably connected to the end of the telescopic rod, a driving member for driving the telescopic rod forward and backward, and a strip box passage located below the starting point of the telescopic rod. The strip box passage is arranged in the partially overlapping area between the conveyor belts I and II. The strip box passage comprises an adjustment frame for adjusting the width of the strip box passage and a rough chamfer block located inside the adjustment frame. When removing the outer packaging bag, the telescopic rod is retracted from the initial extended state, and the pull rod is in the dropped state, so as to transfer the box from the conveyor belt I through the box channel and then to the conveyor belt II, and the outer packaging bag is peeled off by the friction difference between the outer packaging bag, the box and the rough chamfered block; The conveyor belt II includes a belt for conveying strip boxes, and a guide roller group is provided at the upper middle portion thereof, so that when the belt is transmitted to the guide roller group, it first bends downward in an "S" shape and then transmits upward in a slope. The strip boxes are vertically transferred to the conveyor belt II. When the longitudinally placed strip boxes pass through the guide roller group, the strip boxes fall down and are placed horizontally and conveyed upward along the slope of the belt to increase the contact surface between the strip boxes and the belt. There are two bar box channels, and the telescopic rod is located in the middle of the two bar box channels. The pull rod includes a cross bar and two material picking hooks with the two end ends of the cross bar as the rotation center. The two material picking hooks are mirror-imaged at the two end ends of the cross bar, and the spacing between them is larger than the spacing between the two bar box channels by the thickness of a bar box, so that the end of the material picking hook is facing the center position of the side of the bar box to ensure that the two bar boxes pass through the bar box channel smoothly at the same time.

2. The device for removing the outer packaging bag of a box according to claim 1, characterized in that: The output end of the conveyor belt machine I is provided with a positioning baffle, and the inner side of the positioning baffle is provided with a material detection device.

3. The device for removing the outer packaging bag of a box according to claim 1, characterized in that: A trumpet-shaped negative pressure suction port is provided above the strip box channel for sucking the peeled outer packaging bag.

4. The device for removing the outer packaging bag of a box according to claim 1, characterized in that: The rough chamfered block is made of polyurethane.

5. The device for removing the outer packaging bag of a box according to claim 1, characterized in that: The driving member is a cylinder.

6. The device for removing the outer packaging bag of a box according to claim 1, characterized in that: The adjustment frame includes a crossbeam and two vertical rods located at both ends of the crossbeam. One vertical rod is fixedly connected to the crossbeam, and a spring is provided on the outer side of the other vertical rod to adjust the width of the two inner sides of the box channel.

7. The device for removing the outer packaging bag of a box according to claim 1, characterized in that: The driving member is connected to two fixing brackets for fixing the driving member, which are respectively fixedly connected to the two sides of the conveyor belt machine II.

8. A method for removing an outer packaging bag of a carton, the method being applied to the device for removing an outer packaging bag of a carton according to any one of claims 1 to 7, characterized in that: The method comprises: S1: Carton conveying and positioning The boxes are placed vertically on the conveyor belt I and transported forward. Under the blockage of the positioning baffle, the boxes are stacked in a row close to the output end of the conveyor belt I so that the retracting material taking device can take the material. S2: Automatic material collection When the material detection device detects the strip box, the telescopic material picking assembly picks up the material from the output end of the conveyor belt conveyor I. The telescopic rod retracts from the initial extended state, and the pull rod is in the dropped state, so as to transport the strip box from the conveyor belt conveyor I through the strip box channel and then to the conveyor belt conveyor II. S3: Packaging bag stripping and collection During the automatic material picking process, when the strip box passes through the strip box channel, the spring on the outside of the vertical rod is in a compressed state. The spring tension drives the rough chamfered block fixedly connected to the vertical rod to exert pressure on the strip box. The friction between the rough chamfered block and the outer bag is greater than the friction between the outer bag and the strip box. The outer bag is removed by utilizing the friction difference. The removed outer bag is collected by the negative pressure suction port above the strip box channel.

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