Cutting and conveying device and composite production line of paper diaper lug belts

Abstract

The utility model discloses a cutting-off and conveying device and a composite production line of a paper diaper ear belt, and relates to the field of paper diaper processing machinery, the cutting-off and conveying device comprises a rack, cutter rollers and an adsorption roller assembly, the cutter rollers and an adsorption roller of the adsorption roller assembly are rotatably arranged on the rack, the cutter rollers are arranged side by side beside the adsorption roller, and the adsorption roller assembly is arranged on the rack. The hook-and-loop fastener cutting and conveying device has the advantages of being firm in adsorption, stable in conveying and the like. The cutting-off and conveying device is matched with other devices to form a set of composite production line for compounding magic buckles and non-woven fabric paper diaper lug belts.

Description

Technical Field

[0001] The utility model relates to the field of diaper processing machinery, in particular to a composite production line of a cutting and conveying device and diaper ear straps. Background Art

[0002] Diapers are disposable sanitary pants, including baby diapers and adult diapers (such as period diapers). The waistband of a diaper is typically equipped with ear straps for easy attachment and / or adjustment. The ear straps are composed of a base material for securing the diaper to the body and a hook-and-loop fastener for attaching the diaper to the body. Chinese utility model patent publication number CN208492505U discloses a diaper processing machine that first bonds a non-woven fabric with hook-and-loop fasteners using a driven clamping device, and then cuts the resulting composite material using an S-shaped slitting device. This production line can only produce double rows of ear straps that are offset vertically, not horizontally. To accommodate various diaper production lines, it is necessary to design a production line that first cuts and then bonds the diaper ear straps. Currently, there is no cutting and conveying device for hook-and-loop fasteners used for ear straps. Therefore, a device that can both cut and stably convey the hook-and-loop fasteners is needed. Summary of the Invention

[0003] The purpose of the utility model is to provide a cutting and conveying device and a composite production line for diaper ear straps, and the purpose is to overcome the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A cutting and conveying device comprises a frame, a cutter roller, and a suction roller assembly. The cutter roller and the suction roller of the suction roller assembly are both rotatably mounted on the frame, and the cutter roller is arranged side by side with the suction roller. One end of the suction roller is provided with a plurality of first air ducts in an annular distribution, and the other end is provided with a plurality of second air ducts in an annular distribution. The first air duct extends axially along the suction roller, and a first suction hole group is formed on the roller surface of the suction roller. The second air duct extends axially along the suction roller, and a second suction hole group is formed on the roller surface of the suction roller. A plurality of first suction hole groups are arranged between two adjacent second suction hole groups.

[0006] Taking the position where the cutter roller cuts the material as the dividing line, the roller surface of the adsorption roller is divided into the whole material conveying section before cutting and the bulk material conveying section after cutting;

[0007] The above-mentioned adsorption roller assembly also includes a first suction plate with a first arc-shaped air inlet and a second suction plate with a second arc-shaped air inlet fixed to the frame. The above-mentioned first suction plate and the second suction plate are respectively abutted against the two ends of the adsorption roller, and the first arc-shaped air inlet is connected to the first air duct at the position of the whole material conveying section, and the second arc-shaped air inlet is connected to the second air duct at the position of the bulk material conveying section.

[0008] Furthermore, one end of the first arc-shaped air inlet is extended toward the bulk material conveying section, so that the first arc-shaped air inlet is simultaneously connected to the second air duct at the location of the bulk material conveying section.

[0009] Furthermore, three second air outlet groups are arranged between two adjacent first adsorption hole groups.

[0010] Furthermore, a knife seat is fixedly provided in the middle part of the above-mentioned cutting roller, and a plurality of mounting parts are arranged in a ring-shaped distribution on the above-mentioned knife seat. The above-mentioned mounting part is composed of a limiting boss, a mounting surface and a clearance surface connected in sequence. The blade is tightly fixed on the mounting surface, the back of the blade abuts against the limiting boss, and the cutting edge of the blade is located above the clearance surface.

[0011] Furthermore, it also includes a first mounting seat and a second mounting seat, and the first mounting seat and the second mounting seat are both fixed to the frame. The first suction plate is fixedly mounted on the first mounting seat, and the first mounting seat is rotatably mounted on the rotating shaft of the adsorption roller; the second suction plate is fixedly mounted on the second mounting seat, and the second mounting seat is rotatably mounted on the rotating shaft of the adsorption roller.

[0012] Furthermore, it also includes a cleaning mechanism, which includes a scraper and a scraper roller. The scraper is fixed to the frame and is used to clean the roller surface of the adsorption roller; the scraper roller is rotatably arranged on the frame and is used to clean the blade of the cutter roller.

[0013] Furthermore, the frame includes a fixed frame and a mounting frame, the cutter roller and adsorption roller assembly are assembled on the mounting frame, and the mounting frame is arranged on the fixed frame in an adjustable manner up and down through a screw.

[0014] A composite production line for diaper ear straps comprises an ear strap base material conveying line, which is sequentially connected with an ear strap base material unwinding device, a first constant tension device, a first feeding power device and a conveyor belt according to the working process; and further comprises a Velcro conveying line, wherein the conveyor belt is provided with two sets of the Velcro conveying lines arranged along its conveying direction, and the Velcro conveying line is sequentially connected with a Velcro unwinding device, a second feeding power device, a glue spraying device, a second constant tension device and a cutting and conveying device with any of the structures described above according to the working process, and the end of the bulk material conveying section of the adsorption roller is close to the conveyor belt, so that the Velcro is compounded with the ear strap base material through glue.

[0015] Furthermore, the ear band base material is non-woven fabric.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] First, the utility model develops and discloses a cutting and conveying device for the production method of diaper ear straps that cuts first and then compounds, which cuts the material into several bulk materials and conveys these bulk materials one by one to the target position by negative pressure adsorption through an adsorption roller assembly, thereby realizing composite processing with another material, with the advantages of firm adsorption and stable conveying.

[0018] Secondly, in the suction roller assembly of the present invention, one end of the first curved air inlet extends toward the bulk material conveying section, connecting the first curved air inlet to the second air duct located at the bulk material conveying section. At the bulk material conveying section, the first and second suction hole groups simultaneously utilize the suction rollers to more reliably absorb the material, preventing it from slipping relative to the suction roller due to tension, or even completely separating from the roller. This ensures that the material can be accurately cut by the cutting roller.

[0019] Third, in the present invention, the mounting portion of the knife holder is composed of a limiting boss, a mounting surface and a clearance surface connected in sequence. The blade is tightly fixed to the mounting surface, and the back of the blade abuts against the limiting boss. The cutting edge of the blade is located above the clearance surface. It has the advantages of accurate installation and easy loading and unloading, thereby ensuring that the material can be accurately cut by the cutting roller and facilitating the maintenance of the cutting roller.

[0020] Fourthly, the utility model also includes a composite production line for protecting diaper ear straps, which is used to process double-row ear straps that are offset left and right, and has the advantages of stable operation and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the cutting and conveying device in the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of the cutting and conveying device in the present invention.

[0023] Figure 3 This is an exploded view of the cutting and conveying device in the present invention.

[0024] Figure 4 This is an exploded schematic diagram of the adsorption roller assembly in the present invention.

[0025] Figure 5 This is a schematic structural diagram of the cutting roller in the present invention.

[0026] Figure 6 This is a schematic structural diagram of a composite production line for diaper ear straps in the present invention.

[0027] Figure 7 This is a top view of the material after the hook and loop fastener and the ear strap base material are combined in this utility model. The dot-dashed lines represent the cutting lines for processing the material into multiple ear straps. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention will be described below with reference to the accompanying drawings. In order to fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0029] like Figures 1 to 5 As shown, a cutting and conveying device includes a frame 1, a cutter roller 2, an adsorption roller assembly 400 and a cleaning mechanism. The cleaning mechanism includes a scraper 91 and a scraping roller 92.

[0030] like Figures 1 to 5 As shown, the frame 1 includes a fixed frame 11 and a mounting frame. The mounting frame is formed by a top frame 12 and two side panels 13 fixedly connected. The cutter roller 2, the suction roller assembly 400, and the cleaning mechanism are assembled on the mounting frame. The mounting frame is vertically adjustable on the fixed frame 11 via a screw 111. Before use, the mounting frame is adjusted up and down by rotating the screw 111, thereby adjusting the suction roller assembly 400 up and down.

[0031] like Figures 1 to 3 As shown, both the cutter roller 2 and the suction roller 6 of the suction roller assembly 400 are rotatably mounted on the frame 1, with the cutter roller 2 positioned side by side with the suction roller 6. A scraper 91 is fixed to the frame, specifically, the scraper 91 is adjustably mounted between the two side panels 13 via a bracket. The scraper 91 is used to clean the surface of the suction roller 6, removing any glue remaining on the surface of the suction roller 6. A scraper roller 92 is rotatably mounted on the frame, specifically, rotatably mounted on one of the side panels 13. The scraper roller 92 is used to clean the blade 3 of the cutter roller 2, removing any glue remaining on the surface of the blade 3.

[0032] Specifically, the two ends of the cutter roller 2 are rotating shafts, which are rotatably mounted on the two side plates 13 through bearing blocks 8, thereby rotatably mounting the cutter roller 2 on the frame 1. The two ends of the adsorption roller 6 are rotating shafts 4, which are rotatably mounted on the two side plates 13 through bearing blocks 8, thereby rotatably mounting the adsorption roller 6 on the frame 1.

[0033] like Figure 3 and Figure 5 As shown, a blade holder 21 is fixedly mounted in the middle of the cutting roller 2. The blade holder 21 is provided with a plurality of mounting portions arranged in a circular pattern. The number of these mounting portions includes, but is not limited to, six, each of which is detachably secured to a blade 3. Specifically, the mounting portion comprises a sequentially connected stop boss 211, a mounting surface 212, and a clearance surface 213. The blade 3 is securely fastened to the mounting surface 212 via screws, with the back of the blade 3 abutting the stop boss 211, and the cutting edge of the blade 3 positioned above the clearance surface 213.

[0034] like Figures 2 to 4As shown, a plurality of first air ducts 61 are arranged in a circular pattern at one end of the suction roller 6. The number of first air ducts 61 includes, but is not limited to, eighteen, with three first air ducts 61 forming a group. The first air ducts 61 extend axially along the suction roller, and a first suction hole group 611 is formed on the roller surface of the suction roller 6. The first suction hole group 611 includes, but is not limited to, three rows of first suction holes arranged closely together.

[0035] The other end of the suction roller 6 is provided with a plurality of second air ducts 62 arranged in a circular pattern. The number of second air ducts 62 includes, but is not limited to, six. The second air ducts 62 extend axially along the suction roller, and a second suction hole group 621 is formed on the roller surface of the suction roller 6. The second suction hole group 621 includes, but is not limited to, three rows of adjacent second suction holes.

[0036] Three first adsorption hole groups 611 are arranged between two connected second adsorption hole groups 621. In other words, three first air ducts 61 are arranged between two connected second air ducts 62. Therefore, the eighteen first air ducts 61 are arranged in groups of three, for a total of six groups.

[0037] like Figures 2 to 4 As shown, the roller surface of the adsorption roller 6 is divided into a whole material conveying section 601 before cutting and a bulk material conveying section 602 after cutting, with the position Q where the cutting roller 2 cuts the material A (such as a magic buckle) as the boundary.

[0038] like Figures 2 to 4 As shown, the suction roller assembly 400 includes, in addition to the suction roller 6, a first suction plate 5 and a second suction plate 7. The first suction plate 5 has a first arc-shaped air inlet 51 and a first air outlet 52 for connecting to an external vacuum pump. Similarly, the second suction plate 7 has a second arc-shaped air inlet 71 and a second air outlet 72 for connecting to an external vacuum pump.

[0039] The first suction plate 5 is fixed to the frame 1 and abuts against one end of the suction roller 6, where the first air duct 61 is located. This allows the first arc-shaped air inlet 51 to communicate with the plurality of first air ducts 61 located at the bulk material conveying section 601. During operation, the first suction hole group 611 of the first air duct 61 attracts the uncut bulk material to prevent it from falling off.

[0040] Second suction plate 7 is fixed to frame 1 and abuts against one end of suction roller 6, where second air duct 62 is located. This allows second arc-shaped air inlet 71 to connect to multiple second air ducts 62 located at bulk material conveying section 602. During operation, cutter roller 2 cuts material A into sections of bulk material, which are then captured one by one by the second suction hole groups 621 of second air duct 62.

[0041] like Figures 2 to 4As shown, preferably, one end of the first curved air inlet 51 extends toward the bulk material conveying section 601, allowing the first curved air inlet 51 to simultaneously connect to the second air duct 62 located at the bulk material conveying section 601. In other words, the second curved air inlet 71 and the first curved air inlet 51 overlap in the axial direction of the suction roller, with the overlapping area located at the bulk material conveying section 601. During operation, the first suction hole group 611 of the first air duct 61 and the second suction hole group 621 of the second air duct 62 jointly absorb the uncut bulk material, further preventing it from falling out.

[0042] like Figures 2 to 4 As shown, specifically, it also includes a first mounting base 50 and a second mounting base 70. The first mounting base 50 is rotatably mounted on one end of the rotating shaft 4, and one end of the first mounting base 50 is fixed to the frame (specifically, fixed to the side plate 13), and the other end of the first mounting base 50 is fixedly mounted with the first suction plate 5, and the first suction plate 5 is placed against one end of the adsorption roller 6.

[0043] The second mounting seat 70 is rotatably mounted on the other end of the rotating shaft 4, and one end of the second mounting seat 70 is fixed to the frame (specifically, fixed to the other side panel 13), and the other end of the second mounting seat 70 is fixedly mounted with the second suction plate 7, and the second suction plate 7 is abutted against the other end of the adsorption roller 6.

[0044] like Figures 1 to 7 As shown, the present invention also discloses a composite production line for diaper earbands, comprising an earband base material conveyor line for conveying earband base material and two sets of hook and loop fastener conveyor lines for conveying hook and loop fasteners. The earband base material conveyor line is sequentially connected and comprises an earband base material unwinding device 1-1, an automatic material changing device 1-2, a first constant tension device 1-3, a first feed power device 1-4, and a conveyor belt 1-5. Two earband base material unwinding devices 1-1 are provided. When the earband base material (e.g., non-woven fabric) in one earband base material unwinding device 1-1 is exhausted, the automatic material changing device 1-2 automatically switches to the other earband base material unwinding device 1-1. Earband base materials include, but are not limited to, non-woven fabrics.

[0045] Two sets of hook-and-loop fastener conveyor lines are arranged along conveyor belt 1-5 in the conveying direction. One set of hook-and-loop fastener conveyor lines is used to assemble hook-and-loop fastener-1, forming ear strap-1; the other set of hook-and-loop fastener conveyor lines is used to assemble hook-and-loop fastener-2, forming ear strap-2. Ear strap-1 and ear strap-2 are two ear straps of the same diaper. The hook-and-loop fastener conveyor lines are sequentially connected according to the process steps, and include a hook-and-loop fastener unwinding device 2-1, a second feeding power device 2-2, a glue spraying device 2-3, a second constant tension device 2-4, and a cutting and conveying device 2-5 with any of the above structures. The bulk material conveying section 602 of the suction roller 6 ends close to conveyor belt 1-5, allowing the hook-and-loop fasteners to be bonded to the ear strap base material through glue.

[0046] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A cutting and conveying device, comprising a frame, a cutter roller and a suction roller assembly, wherein the cutter roller and the suction roller of the suction roller assembly are rotatably mounted on the frame, and the cutter roller is arranged side by side with the suction roller, characterized in that: A plurality of first air ducts are provided in an annular arrangement at one end of the adsorption roller, and a plurality of second air ducts are provided in an annular arrangement at the other end; the first air duct extends axially along the adsorption roller, and a first adsorption hole group is provided on the roller surface of the adsorption roller; the second air duct extends axially along the adsorption roller, and a second adsorption hole group is provided on the roller surface of the adsorption roller; and a plurality of first adsorption hole groups are arranged between two adjacent second adsorption hole groups; Taking the position where the cutter roller cuts the material as the dividing line, the roller surface of the adsorption roller is divided into the whole material conveying section before cutting and the bulk material conveying section after cutting; The adsorption roller assembly also includes a first suction plate with a first arc-shaped air inlet and a second suction plate with a second arc-shaped air inlet fixed to the frame. The first suction plate and the second suction plate are respectively abutted against the two ends of the adsorption roller, and the first arc-shaped air inlet is connected to the first air duct at the position of the whole material conveying section, and the second arc-shaped air inlet is connected to the second air duct at the position of the bulk material conveying section.

2. The cutting and conveying device according to claim 1, characterized in that: One end of the first arc-shaped air inlet is extended toward the bulk material conveying section, so that the first arc-shaped air inlet is simultaneously connected to the second air duct at the location of the bulk material conveying section.

3. A cutting and conveying device according to claim 1 or 2, characterized in that: Three second air outlet groups are arranged between two adjacent first adsorption hole groups.

4. The cutting and conveying device according to claim 1, characterized in that: A knife seat is fixedly provided in the middle of the cutting roller, and a plurality of mounting parts are distributed in a ring on the knife seat. The mounting part is composed of a limiting boss, a mounting surface and a clearance surface connected in sequence. The blade is tightly fixed on the mounting surface, the back of the blade abuts against the limiting boss, and the cutting edge of the blade is located above the clearance surface.

5. The cutting and conveying device according to claim 1, characterized in that: It also includes a first mounting seat and a second mounting seat, both of which are fixed to the frame, the first suction plate is fixedly mounted on the first mounting seat, and the first mounting seat is rotatably mounted on the rotating shaft of the adsorption roller; the second suction plate is fixedly mounted on the second mounting seat, and the second mounting seat is rotatably mounted on the rotating shaft of the adsorption roller.

6. The cutting and conveying device according to claim 1, characterized in that: It also includes a cleaning mechanism, which includes a scraper and a scraping roller. The scraper is fixed to the frame and is used to clean the roller surface of the adsorption roller; the scraping roller is rotatably arranged on the frame and is used to clean the blade of the cutting roller.

7. The cutting and conveying device according to claim 1, characterized in that: The frame comprises a fixed frame and a mounting frame, the cutter roller and adsorption roller assembly are assembled on the mounting frame, and the mounting frame is arranged on the fixed frame in an adjustable manner up and down through a screw rod.

8. A composite production line for diaper ear loops, comprising an ear loop base material conveying line, wherein the ear loop base material conveying line is sequentially connected with an ear loop base material unwinding device, a first constant tension device, a first feeding power device, and a conveyor belt; characterized in that: It also includes a Velcro conveyor line, and the conveyor belt is provided with two sets of Velcro conveyor lines arranged along its conveying direction. The Velcro conveyor line is provided with a Velcro unwinding device, a second feeding power device, a glue spraying device, a second constant tension device and a cutting and conveying device with a structure as described in any one of claims 1-7 in sequence according to the process, and the end of the bulk material conveying section of the adsorption roller is close to the conveyor belt, so that the Velcro is compounded with the ear band base material through glue.

9. A composite production line for diaper ear straps according to claim 8, characterized in that: The ear band base material is non-woven fabric.

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