CN112873865A - Pull-up diaper ultrasonic wave upset welding set - Google Patents
Pull-up diaper ultrasonic wave upset welding set Download PDFInfo
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- CN112873865A CN112873865A CN202110286561.2A CN202110286561A CN112873865A CN 112873865 A CN112873865 A CN 112873865A CN 202110286561 A CN202110286561 A CN 202110286561A CN 112873865 A CN112873865 A CN 112873865A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8324—Joining or pressing tools pivoting around one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
- B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7888—Means for handling of moving sheets or webs
- B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
- B29C66/82421—Pneumatic or hydraulic drives using an inflatable element positioned between the joining tool and a backing-up part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
- B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
- B29C66/92451—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power using joining tools having different pressure zones or using several joining tools with different pressures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4871—Underwear
- B29L2031/4878—Diapers, napkins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to the field of production equipment of disposable sanitary products, in particular to an ultrasonic turnover welding device for a pair of pull-ups, which comprises a rack, wherein a rotating shaft and an ultrasonic welding mechanism are erected on the rack, the ultrasonic welding mechanism comprises a welding machine body and a pressing plate, materials to be welded are conveyed in a streamline arrangement mode, when the pressing plate is in contact with the welding machine body, the materials to be welded are clamped between the pressing plate and the welding machine body, a turnover mechanism for driving the pressing plate to be close to or away from the welding machine body is arranged on the rack, the turnover mechanism comprises a grooved pulley, a rotating frame, a guide rail, a sliding block and a connecting rod mechanism, a guide groove is formed in the circumferential outer surface of the grooved pulley, and a guide rod is arranged at the lower end of the sliding block and embedded in the guide groove so that the sliding block can. The invention is applied to the welding process of waistline and other positions in the production of sanitary products.
Description
Technical Field
The invention relates to the field of production equipment of disposable sanitary products such as adult diaper machinery, mattresses, sanitary towels and the like, in particular to an ultrasonic turnover welding device for pull-up pants, and particularly relates to the production of infant pull-up pants and adult pull-up pants.
Background
In the domestic relevant disposable hygienic articles equipment at present, especially in the pull-up diaper machinery, waistline welding is an important standard of product quality, also is one of the factors that influence the machine start-up speed, and traditional design has following problem:
1. the traditional waistline welding is realized in a heat sealing mode, the mechanism has great limitation, firstly, in order to achieve the welding effect, the welding force between an upper roller and a lower roller is great, so that the starting is caused, and particularly when the equipment runs at a high speed, the mechanism is unstable, the vibration is great, and the noise and the vibration of the whole machine table can be increased; secondly, the upper roller and the lower roller need to be heated during heat sealing, the temperature and the power are high, the consumption of a heating rod is large, meanwhile, a rotary connector is needed due to the existence of a heating wire and a temperature control wire, and the rotary connector is easy to damage due to the limitation of the installation precision of the rollers and the rotary connector and the vibration of a mechanism; finally, due to the limitation of the mechanism, on the premise of pursuing welding strength, the product is easily over-welded at a high speed, so that materials are welded to be broken, and the requirement of high-speed starting cannot be met;
2. in consideration of the limitation of heat sealing, the later design also adopts an ultrasonic welding mode, the ultrasonic waves have smaller vibration than the heat sealing, the welding effect is superior to that of the heat sealing, the welding position is soft, and certain hardness is not generated during the heat sealing;
the existing ultrasonic welding structure only changes the roller on the original heat sealing mechanism into the ultrasonic wave of flat welding, and the welding effect of the ultrasonic wave needs different welding force or space when the machine is started at different speeds, so that the common ultrasonic mechanism can not realize the ultrasonic welding structure, and when the ultrasonic mechanism with adjustable welding force is adopted, the price is higher, and the cost performance is not high. Meanwhile, although the welding effect can be improved by adjusting the welding force, the ultrasonic waves meet the welding requirement, the welding time is at least, the welding time is correspondingly reduced along with the continuous increase of the speed of the machine, the production speed of the equipment is limited by the welding time, and the limitation is also caused;
3. no matter be heat-seal mechanism or foretell ultrasonic mechanism, all there is a problem simultaneously, is exactly that the welding is because the face of weld is the disc, all is only one line during the welding, to different product widths, the different speed of board, can't guarantee the stable welding time of welding position to can't guarantee the welding effect.
Disclosure of Invention
Therefore, the invention provides the pull-up diaper ultrasonic overturning welding device, which solves the problem that welding equipment adopted by pull-up diapers is poor in welding effect.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an ultrasonic flip welding device for pull-up pants comprises a rack, wherein a rotating shaft and an ultrasonic welding mechanism are erected on the rack, the ultrasonic welding mechanism comprises a welding machine body and a pressing plate, materials to be welded are conveyed in a streamline arrangement mode, when the pressing plate is in contact with the welding machine body, the materials to be welded are clamped between the pressing plate and the welding machine body, a turnover mechanism for driving the pressing plate to be close to or away from the welding machine body is arranged on the rack, the turnover mechanism comprises a grooved wheel, a rotating frame, a guide rail, a sliding block and a connecting rod mechanism, the grooved wheel is fixed on the rack, the rotating frame is located on the outer side of the grooved wheel, is installed on the rotating shaft and can rotate along with the rotating shaft, the guide rail is installed on the rotating frame, the sliding block can reciprocate on the guide rail, the connecting rod mechanism, the lower end of the sliding block is provided with a guide rod embedded in the guide groove, so that the sliding block can move along with the position change of the guide rod.
Preferably, the link mechanism is provided with a pressing cylinder for mounting a pressing plate, the pressing plate penetrates through the bottom of the pressing cylinder, the contact surface of the pressing plate and the welding machine body is exposed out of the pressing cylinder, and an air bag for applying force to the pressing plate is embedded in the pressing cylinder.
Preferably, the guide groove on the sheave is divided into a guide section and a welding section, when the guide rod is located in the welding section, the ultrasonic welding mechanism welds materials, and the welding section is not smaller than 1/8 of the round diameter of the sheave.
Preferably, the link mechanism comprises a first link and a second link, one end of the first link is hinged to the rotating frame and is close to the welding machine body, the other end of the first link is hinged to the second link, the free end of the second link is hinged to the sliding block, the pressing cylinder is mounted on the first link, and when the sliding block slides in the direction close to the welding machine body, the pressing plate at the lower end of the pressing cylinder is gradually overturned in the direction of the welding machine body along with the movement of the pressing cylinder until the pressing plate and the welding machine body are mutually contacted.
Preferably, the projection shape of the guide groove in the conveying direction of the assembly line is an arc line structure with central symmetry, and when the guide rod is located at the end of the arc line, the guide groove is in a non-welding position and a welding position respectively, so that a structure that the rotating shaft rotates for one circle to perform one-time welding is formed.
Preferably, the projection shape of the guide groove in the conveying direction of the assembly line is an axisymmetric arc structure, and when the guide rod is located at the end of the arc, the guide groove is located at the welding position, so that a structure that the rotating shaft rotates for one circle and is welded twice is formed.
Preferably, a guide roller arranged in parallel with the rotating shaft is arranged on the machine frame on the radial peripheral side of the grooved pulley, and the material is wound on the outer surface of the guide roller to be welded twice.
The utility model provides another technical scheme, a pull-up diaper ultrasonic wave upset welding set, includes the frame, the frame is put on the shelf and is equipped with pivot and ultrasonic welding mechanism, ultrasonic welding mechanism includes welding machine body and clamp plate, and the material that treats welding is the assembly line and arranges the transport, and when the clamp plate contacts with welding machine body, the material clamp that treats welding is established between clamp plate and welding machine body, be equipped with the drive in the frame the clamp plate is close to/keeps away from the tilting mechanism of welding machine body, tilting mechanism includes the sheave that installs in the pivot and can rotate along with the pivot, is located the mount on the frame of the sheave outside, installs the guide rail on the mount, can be on the guide rail reciprocating motion the slider and be used for installing the clamp plate makes the clamp plate can accomplish the upset action along with the slip of slider, the circumference surface of sheave is provided with the guide, the lower end of the sliding block is provided with a guide rod embedded in the guide groove, so that the sliding block can move along with the position change of the guide rod.
Preferably, the link mechanism is provided with a pressing cylinder for mounting a pressing plate, the pressing plate penetrates through the bottom of the pressing cylinder, the contact surface of the pressing plate and the welding machine body is exposed out of the pressing cylinder, and an air bag for applying force to the pressing plate is embedded in the pressing cylinder.
Preferably, the guide groove on the sheave is divided into a guide section and a welding section, when the guide rod is located in the welding section, the ultrasonic welding mechanism welds materials, and the welding section is not smaller than 1/8 of the round diameter of the sheave.
By adopting the technical scheme, the invention has the beneficial effects that:
the technical scheme adopts ultrasonic wave for welding, so that the welding effect can be ensured, meanwhile, the material of a welding part is soft, the welding strength can be ensured, and the welding quality is improved;
by the designed pressing plate and welding machine body pressing mode, the sheave angle is designed, and the welding time can be ensured through calculation, so that the minimum welding time of ultrasonic waves is met, and the welding effect is ensured;
due to the adoption of a pressing mode, the welding position is a plane, the whole stress at the welding position can be realized in the whole welding process, and the welding effect is uniform;
the air bag is adopted during welding, the stress of the pressure plate can be adjusted through controlling the air pressure of the air bag, so that the welding force is adjusted, and meanwhile, the welding block is uniformly attached to the ultrasonic welding surface under the action of the air bag, so that the welding effect is ensured;
the technical scheme can ensure the welding effect, improve the welding quality while improving the production speed of the machine, meet the use requirements of different types of products and improve the production efficiency of the machine;
meanwhile, the technical scheme is independent of the traditional welding equipment for the hygienic products, is overhead outside the traditional production line, can improve the old production equipment according to the requirements, is low in transformation investment, and has good universality.
Drawings
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of a partially enlarged structure at a point A according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a sheave according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a double sheave according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of the position of a third guide roller and an ultrasonic welding mechanism according to an embodiment of the present invention;
fig. 6 is an overall structural schematic diagram of a fourth embodiment of the present invention.
Detailed Description
The following detailed description will be provided for the embodiments of the present invention with reference to specific embodiments, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Example one
Referring to fig. 1 and 2, an ultrasonic flip welding device for a pair of training pants comprises a frame 100, wherein a rotating shaft 1 and an ultrasonic welding mechanism 2 are erected on the frame 100, the rotating shaft 1 is connected with a motor driving the rotating shaft 1 to rotate, the ultrasonic welding mechanism 2 comprises a welding machine body 21 and a pressing plate 22, materials to be welded are conveyed in a flow line arrangement mode, when the pressing plate 22 is in contact with the welding machine body 21, the materials to be welded are clamped between the pressing plate 22 and the welding machine body 21, a turnover mechanism 3 driving the pressing plate 22 to be close to or far away from the welding machine body 21 is arranged on the frame 100, the turnover mechanism 3 comprises a grooved pulley 31 fixed on the frame 100, a rotating frame 32 located outside the grooved pulley 31 and installed on the rotating shaft and capable of rotating along with the rotating shaft 1, a guide rail 33 installed on the rotating frame 32, a sliding block 34 capable of reciprocating on the guide rail 33, and a slide block 34 used for installing the pressing plate In the link mechanism 4, the circumferential outer surface of the sheave 31 is provided with a guide groove 311, and the lower end of the slider 34 is provided with a guide rod 341 which is embedded in the guide groove 311 so that the slider 34 can displace along with the change of the position of the guide rod 341. When the device operates, the rotating shaft 1 rotates to drive the rotating frame 32 to rotate, the guide rod 341 moves around the outer surface of the grooved pulley 31 in the guide groove 311, and further drives the sliding block 34 to realize fixed-period reciprocating motion on the guide rail 33 (the period is one rotation of the rotating shaft 1), and further drives the link mechanism to realize one reciprocating motion, so that one welding motion of the pressing plate 22 and the welding machine body 21 is performed, and the resetting is performed. The pressing structure is different from a two-roller hot pressing or ultrasonic rolling structure, can realize surface welding, is different from a line welding structure, can ensure the integral stress of a welding position, improves the welding effect, and can ensure enough welding time by surface welding, thereby meeting the minimum welding time of ultrasonic welding and ensuring the welding effect;
specifically, a pressing cylinder 5 for installing a pressing plate is arranged on the link mechanism 4, the pressing plate 22 penetrates through the bottom of the pressing cylinder 5, a contact surface between the pressing plate 22 and the welding machine body 21 is exposed out of the pressing cylinder 5, and an air bag 23 for applying force to the pressing plate 22 is embedded in the pressing cylinder 5. The pressure cylinder 5 is arranged and provided with the air bag 23, the pressure can be directly applied from the non-welding surface of the pressure plate 22 by controlling the air pressure in the air bag 23, the welding force can be adjusted by adjusting the air pressure, the adjustment mode is simple and convenient, the acting force borne by the pressure plate 22 can be more uniform by the pressurizing form of the air bag 23, and the welding effect is further ensured;
specifically, the link mechanism 4 includes a first link 41 and a second link 42, one end of the first link 41 is hinged to the rotating frame 32, the position of the first link is close to the welding machine body 21, the other end of the first link is hinged to the second link 42, the free end of the second link 42 is hinged to the sliding block 34, the pressing cylinder 5 is mounted on the first link 41, and when the sliding block 34 slides in the direction close to the welding machine body 21, the pressing plate 22 at the lower end of the pressing cylinder 5 gradually turns in the direction of the welding machine body 21 along with the movement of the pressing cylinder 5 until the pressing plate and the pressing cylinder are contacted with each other. The specific structure of the link mechanism 4 is shown, when the number needs to be changed, the position of the pressing cylinder 5 on the first link rod 41 can be directly changed, or the lengths of the second link rod and the first link rod are adjusted, or the connecting position between the first link rod and the first link rod is adjusted, the turning radius of the turnover mechanism can be changed, so that the number can be directly changed aiming at the production products with different requirements, the number can be directly changed on line, the welding production requirements of the products with different models can be met, the disassembly of the internal structure is avoided, and the adjustment is convenient; through the design of the connecting rod mechanism 4, the structure can be improved according to the requirement, the overturning route of the overturning mechanism 3 is changed, so that the welding requirements of products of different models are met, the adjustment is convenient, the disassembly of the mechanism cannot be involved, and the code changing operation can be carried out on line;
in this embodiment, the guide groove 311 on the sheave 31 is divided into a guide section 311a and a welding section 311b, when the guide rod 341 is in the welding section, the ultrasonic welding mechanism 2 welds the material, and the welding section 311b is 1/3 of the circular diameter of the sheave 31; since the guide slot 311 is an arc-shaped structure, the guide slot 311 is designed herein, specifically, the projection shape of the guide slot 311 in the conveying direction of the assembly line is a centrosymmetric arc structure, and when the guide rod 341 is located at the end of the arc, the guide slot is a non-welding position a and a welding position b, so as to form a structure that the rotating shaft 1 rotates one circle to perform one welding; the welding section 311b is distributed as shown in fig. 3, is located at the lower part of the grooved pulley 31, and when the guide rod 341 moves gradually, a time period for gradually contacting, compacting and then separating exists between the pressure plate 22 and the welding machine body 21, and the time period can achieve the function of adjusting the welding time by adjusting the proportion of the welding section 311b in the circular diameter of the grooved pulley 31, so that the welding time can meet the minimum welding time for ultrasonic welding, and the technical scheme can have a stable and good welding effect by matching with a structure in which the pressure plate 22 is in surface contact with the welding machine body 21;
simultaneously when the product welding, because only weld the waistline, the core position is outside the welding position, so the core position can adopt the belt to carry out the nip pressure, compares in the hot-pressing welded structure who adopts two compression rollers, and the unstable condition of product appears when can avoiding leading to the welding because of core thickness.
Example two
Referring to fig. 4, compared with the first embodiment, the projection shape of the guide slot 311 in the conveying direction of the assembly line is an axisymmetric arc structure, and when the guide rod 341 is at the end of the arc, the guide slot is in the welding position b, so that the structure that the rotating shaft rotates once and is welded twice is formed. This is the improvement of going on according to the demand, can carry out pivot 1 and rotate the round and accomplish twice welded function, simultaneously as shown in fig. 4, guide bar 311 is welding section 311b along the upper and lower both ends of sheave 31, and the middle part is guide section 311a, is welding position b at the upper and lower both ends of equipment, and applicable in a welding machine carries out the demand that two material conveying line welded, can further improve production efficiency.
EXAMPLE III
Referring to fig. 5, compared with the embodiment, the machine frame located on the radial peripheral side of the grooved pulley 31 is provided with the guide roller 6 arranged in parallel with the rotating shaft 1, and the material is wound around the outer surface of the guide roller to be welded twice. This kind of structure designs guide roll 6, leads the material of assembly line to the welding position b of upper end by the welding position b of lower extreme through guide roll 6, can set for two welding position b simultaneous action or intermittent action or one of them welding position b for supplementing functions such as welding according to actual demand in the structure, makes this technical scheme can have more nimble application range, the more diversified product welding's of adaptation demand.
Example four
The technical scheme is that as shown in fig. 6, an ultrasonic flip welding device for the pull-up diaper comprises a frame 100, wherein a rotating shaft 1 and an ultrasonic welding mechanism 2 are erected on the frame 100, the ultrasonic welding mechanism 2 comprises a welding machine body 21 and a pressing plate 22, materials to be welded are conveyed in a flow line arrangement manner, when the pressing plate 22 is in contact with the welding machine body 21, the materials to be welded are clamped between the pressing plate 22 and the welding machine body 21, a turnover mechanism 3 for driving the pressing plate 22 to be close to or far away from the welding machine body 21 is arranged on the frame 100, the turnover mechanism 3 comprises a grooved pulley 31 which is arranged on the rotating shaft 1 and can rotate along with the rotating shaft 1, a fixed frame 32 which is arranged on the frame outside the grooved pulley 31, a guide rail 33 which is arranged on the fixed frame 32, a slide block 34 which can reciprocate on the guide rail 33, and a link mechanism 4 for mounting the pressing plate 22 to enable the pressing plate, the outer circumferential surface of the sheave 31 is provided with a guide groove 311, and the lower end of the slider 34 is provided with a guide rod 341 embedded in the guide groove 311 so that the slider can displace along with the position change of the guide rod 341.
In this embodiment, the link mechanism 4 is provided with a pressing cylinder 5 for installing a pressing plate 22, the pressing plate 22 is arranged at the bottom of the pressing cylinder 5 in a penetrating manner, a contact surface between the pressing plate 22 and the welding machine body 21 is exposed out of the pressing cylinder 5, and an air bag 23 for applying force to the pressing plate 22 is embedded in the pressing cylinder 5.
In this embodiment, the guide groove 311 on the sheave 31 is divided into a guide section 311a and a welding section 311b, and shows the positions of the non-welding position a and the welding position b, when the guide rod 341 is in the welding section 311b, the ultrasonic welding mechanism 2 welds the material, and the welding section 311b is 1/3 of the circular diameter of the sheave 31, where the length of the welding section 311b can be shortened according to the welding time required in practice, and the minimum length is not lower than 1/8 of the circular diameter of the sheave 31.
In the technical scheme, compared with the first embodiment, the rotating part is the grooved pulley 31, the welding machine body 21 is fixed in position, installation can be facilitated due to the fact that the fixing frame 32 is fixed in position, installation accuracy requirements are reduced, the grooved pulley 31 only needs to be adjusted during adjustment, and equipment installation convenience is improved.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a pull-up diaper ultrasonic wave upset welding set which characterized in that: comprises a frame, a rotating shaft and an ultrasonic welding mechanism are erected on the frame, the ultrasonic welding mechanism comprises a welding machine body and a pressing plate, materials to be welded are arranged and conveyed in a production line, when the pressure plate is contacted with the welding machine body, the material to be welded is clamped between the pressure plate and the welding machine body, the frame is provided with a turnover mechanism which drives the pressure plate to be close to/far away from the welding machine body, the turnover mechanism comprises a grooved wheel fixed on the frame, a rotating frame which is positioned outside the grooved wheel and is arranged on the rotating shaft and can rotate along with the rotating shaft, a guide rail arranged on the rotating frame, a sliding block capable of reciprocating on the guide rail and a connecting rod mechanism used for installing the pressing plate to enable the pressing plate to complete turnover action along with the sliding of the sliding block, the outer circumferential surface of the grooved wheel is provided with a guide groove, and the lower end of the sliding block is provided with a guide rod embedded in the guide groove, so that the sliding block can move along with the position change of the guide rod.
2. The pull-up pant ultrasonic flip welding device according to claim 1, characterized in that: the connecting rod mechanism is provided with a pressing cylinder used for installing a pressing plate, the pressing plate penetrates through the bottom of the pressing cylinder, the contact surface of the pressing plate and the welding machine body is exposed out of the pressing cylinder, and an air bag used for applying force to the pressing plate is embedded in the pressing cylinder.
3. The pull-up pant ultrasonic flip welding device according to claim 2, characterized in that: the guide groove on the grooved wheel is divided into a guide section and a welding section, when the guide rod is located in the welding section, the ultrasonic welding mechanism welds materials, and the welding section is not smaller than 1/8 of the circular diameter of the grooved wheel.
4. The pull-up pant ultrasonic turn-over welding device according to claim 1, 2 or 3, characterized in that: the connecting rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the rotating frame, the position of the first connecting rod is close to the welding machine body, the other end of the first connecting rod is hinged to the second connecting rod, the free end of the second connecting rod is hinged to the sliding block, the pressing cylinder is installed on the first connecting rod, and when the sliding block slides towards the direction close to the welding machine body, the pressing plate at the lower end of the pressing cylinder is gradually overturned towards the direction of the welding machine body along with the movement of the pressing cylinder until the pressing plate and the pressing cylinder are mutually.
5. The pull-up pant ultrasonic turn-over welding device according to claim 1, 2 or 3, characterized in that: the projection shape of guide way along the direction of delivery of assembly line is centrosymmetric arc line structure, works as the guide bar is in when the tip of pitch arc, be non-welding position and welding position respectively, form the pivot and rotate the once welded structure of round.
6. The pull-up pant ultrasonic turn-over welding device according to claim 1, 2 or 3, characterized in that: the projection shape of the guide groove in the conveying direction of the assembly line is an axisymmetric arc structure, and when the guide rod is positioned at the end part of the arc, the guide groove is positioned at the welding position, so that a structure that the rotating shaft rotates for one circle and is welded twice is formed.
7. The pull-up pant ultrasonic turn-over welding device according to claim 6, characterized in that: and a guide roller arranged in parallel with the rotating shaft is arranged on the machine frame on the radial peripheral side of the grooved pulley, and the material is wound on the outer surface of the guide roller to be welded twice.
8. The utility model provides a pull-up diaper ultrasonic wave upset welding set which characterized in that: comprises a frame, a rotating shaft and an ultrasonic welding mechanism are erected on the frame, the ultrasonic welding mechanism comprises a welding machine body and a pressing plate, materials to be welded are arranged and conveyed in a production line, when the pressure plate is contacted with the welding machine body, the material to be welded is clamped between the pressure plate and the welding machine body, the frame is provided with a turnover mechanism which drives the pressure plate to be close to/far away from the welding machine body, the turnover mechanism comprises a grooved wheel which is arranged on the rotating shaft and can rotate along with the rotating shaft, a fixed frame which is arranged on the machine frame at the outer side of the grooved wheel, a guide rail which is arranged on the fixed frame, a slide block which can reciprocate on the guide rail and a connecting rod mechanism which is used for installing the press plate and leading the press plate to complete turnover action along with the sliding of the slide block, the outer circumferential surface of the grooved wheel is provided with a guide groove, and the lower end of the sliding block is provided with a guide rod embedded in the guide groove, so that the sliding block can move along with the position change of the guide rod.
9. The pull-up pant ultrasonic flip welding device according to claim 8, characterized in that: the connecting rod mechanism is provided with a pressing cylinder used for installing a pressing plate, the pressing plate penetrates through the bottom of the pressing cylinder, the contact surface of the pressing plate and the welding machine body is exposed out of the pressing cylinder, and an air bag used for applying force to the pressing plate is embedded in the pressing cylinder.
10. The pull-up pant ultrasonic flip welding device according to claim 9, characterized in that: the guide groove on the grooved wheel is divided into a guide section and a welding section, when the guide rod is located in the welding section, the ultrasonic welding mechanism welds materials, and the welding section is not smaller than 1/8 of the circular diameter of the grooved wheel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110286561.2A CN112873865A (en) | 2021-03-17 | 2021-03-17 | Pull-up diaper ultrasonic wave upset welding set |
| PCT/CN2021/113387 WO2022193544A1 (en) | 2021-03-17 | 2021-08-19 | Ultrasonic turnover welding device for pull-ups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110286561.2A CN112873865A (en) | 2021-03-17 | 2021-03-17 | Pull-up diaper ultrasonic wave upset welding set |
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| CN112873865A true CN112873865A (en) | 2021-06-01 |
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|---|---|---|---|
| CN202110286561.2A Pending CN112873865A (en) | 2021-03-17 | 2021-03-17 | Pull-up diaper ultrasonic wave upset welding set |
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| Country | Link |
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| CN (1) | CN112873865A (en) |
| WO (1) | WO2022193544A1 (en) |
Cited By (1)
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| WO2022193544A1 (en) * | 2021-03-17 | 2022-09-22 | 泉州市汉威机械制造有限公司 | Ultrasonic turnover welding device for pull-ups |
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| CN116728795B (en) * | 2023-08-09 | 2023-10-20 | 江苏缪斯光电科技有限公司 | Preparation facilities for infrared night vision telescope equipment |
| CN117754104B (en) * | 2024-02-22 | 2024-04-30 | 内蒙古工业大学 | Automatic change welding set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3431380A (en) * | 1966-07-05 | 1969-03-04 | Eastman Kodak Co | Dielectric package sealer |
| US5660679A (en) * | 1995-01-31 | 1997-08-26 | Kimberly-Clark Worldwide, Inc. | Rotary sealing system |
| EP2080608B1 (en) * | 2001-03-28 | 2012-12-19 | Unicharm Corporation | Sealing apparatus and manufacturing process of soft article having sealed portion |
| JP5851297B2 (en) * | 2012-03-22 | 2016-02-03 | ユニ・チャーム株式会社 | Apparatus and method for sonicating a web |
| CN106079419B (en) * | 2016-07-29 | 2018-10-26 | 安庆市恒昌机械制造有限责任公司 | It is a kind of to be pressed together device and method for material processing |
| CN112873865A (en) * | 2021-03-17 | 2021-06-01 | 泉州市汉威机械制造有限公司 | Pull-up diaper ultrasonic wave upset welding set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022193544A1 (en) * | 2021-03-17 | 2022-09-22 | 泉州市汉威机械制造有限公司 | Ultrasonic turnover welding device for pull-ups |
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