A nonwoven cloth refueling device for high-temperature welding

Abstract

The application discloses a high-temperature welding and pressing non-woven fabric material changing device, wherein the connecting piece one or the connecting piece two is composed of a rotary motor connected with a rack, a triangular frame with one angle fixedly connected with the output end of the rotary motor and a connecting pressing plate arranged at one angle of the movable end of the triangular frame; the output end of the rotary motor is coaxially connected with a driving gear; the driving gear is in transmission connection with a pressing balance wheel piece; the output end of the pressing balance wheel piece is connected with a conductive pressing shaft; the connecting pressing plate is provided with a conductive block in conduction with an electric heating piece; and a blocking end with a surface profile adapted to the shape of the conductive pressing shaft is arranged at the position of the surface of the conductive block away from the rotary core of the triangular frame. The application combines the structure of high-temperature welding and pressing with the structure of automatic connecting and material changing, and obviously helps to improve the material changing and connecting speed of the connecting structure position and the stability of the connecting welding seam between different fabrics.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of absorbent articles, in particular to a high-temperature welding non-woven fabric material changing device. BACKGROUND

[0002] In the equipment for producing products using non-woven fabric, the replacement of the fabric has always been a necessary step to ensure the continuity of production. With the development of technology, the manual connection of the early manual start-stop machine has gradually developed towards the direction of semi-automatic or automatic material changing connection with mechanical assistance. Various automatic material changing structures with complex and simple technologies have emerged. The automatic material changing structure with simple technology has the advantages of lower cost in production and maintenance, and better low maintenance difficulty. Therefore, for a considerable number of enterprises, the latter is preferred as a technical solution for production and manufacturing.

[0003] For example, prior art publication CN113753638A discloses an automatic roll changing device on December 7, 2021. The device includes a first unwinding mechanism, a second unwinding mechanism, a mounting plate, and an interface device arranged on the mounting plate. The cooperation of the first interface device and the second interface device replaces the manual roll changing in the modern roll changing device, which can greatly reduce the risk of belt breakage during personnel operation, improve efficiency and yield. Compared with the complex material changing structure of multiple roller groups and motors, the structure is very simple, and the design of the mechanism execution action is also reasonable.

[0004] The above-mentioned prior art interface device and the mounting plate are connected by a motor shaft to output torque. The rack of the interface device is equivalent to a labor-saving lever. If the welding structure at the end needs to output the pressing force required for hot pressing stably, the mass of the welding structure can only be relatively light. Only in this case can the rotating motor for connection output torque to the end connection part better. However, the structure does not provide reasonable structural support, and the end connection part does not have a physical structure for quick connection, which does not help to improve the stability of the connected material during material changing. In the long run, not only may the connected material be broken due to unstable connection position, but the roll changing structure is also prone to failure. SUMMARY

[0005] In view of the technical defects in the background art, the present application provides a high-temperature welding non-woven fabric material changing device, which solves the above-mentioned technical problems and meets the actual needs. The specific technical solution is as follows:

[0006] The application discloses a high-temperature welding and pressing non-woven fabric material changing device, which comprises a pair of unwinding rollers one and two arranged on a rack, and a pair of connecting members one and two arranged symmetrically to a non-woven fabric material running plane.

[0007] As a further technical scheme of the application, the presser pendulum member is composed of a fixed frame fixedly connected with the rack and hinged to the driven gear, a rotating disc coaxially connected with the driven gear, a linear mechanism fixed on the surface of the rotating disc, and a pendulum fixedly connected with the output end of the linear mechanism and coaxial with the driven gear in the initial state.

[0008] As a further technical scheme of the application, the outer edge of the rotating disc is provided with an inner ring body surrounding the linear mechanism, the rack is provided with an outer ring body sleeved on the outside of the inner ring body, and the contact surfaces of the inner ring body and the outer ring body are connected with each other in a sliding pair or a rolling pair.

[0009] As a further technical scheme of the application, the outer ring body is a conductor connected with the circuit, the inner ring body is an insulator, the outer surface of the outer ring body is provided with an insulating layer, and the conductive presser shaft is connected with the inner surface of the outer ring body through a wire.

[0010] As a further technical scheme of the application, the conductive presser shaft is composed of a conductor inner core connected with the circuit and rigidly connected with the pendulum, and a conductive layer with a smooth surface sleeved on the outside of the conductor inner core.

[0011] As a further technical scheme of the application, the rack is provided with an avoiding hole with a diameter larger than that of the conductive presser shaft, and the end surface of the pendulum is recessed to the outer surface of the avoiding hole.

[0012] As a further technical scheme of the application, the linear mechanism is a linear motor fixedly connected with the middle line position of the rotating disc, and the moving direction of the linear mechanism and the radius line where the conductive presser shaft is located form an acute angle.

[0013] As a further technical scheme of the present application, the rotating core and the other angle of the tripod are movably connected with a roller.

[0014] The present application has the beneficial effect that the high-temperature welding and pressing structure is reasonably combined with the automatic connecting and material changing structure, the material changing and connecting speed at the connecting structure position is effectively improved, the stability of the connecting seam between different fabrics is improved, and the enterprise is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the non-woven fabric material changing device.

[0016] Figure 2 It is a rear view structural schematic diagram of the non-woven fabric material changing device.

[0017] Figure 3 It is a sectional local enlarged schematic diagram of the connecting piece one or the connecting piece two.

[0018] Figure 4 It is a local enlarged schematic diagram of the connecting piece one or the connecting piece two.

[0019] Wherein: rack 0, unwinding roller one 1, unwinding roller two 2, connecting piece one 3, connecting piece two 4, rotating motor 5, tripod 6, connecting pressure plate 7, pressure connection surface 70, electric heating element 71, conductive block 72, blocking end 73, driving gear 8, transmission piece 9, driven gear 10, pressing balance wheel piece 11, fixed frame 110, rotating disc 111, linear mechanism 112, balance wheel 113, inner ring body 114, outer ring body 115, conductive pressing shaft 12, conductor inner core 120, conductive layer 121, avoiding hole 13, roller 14. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described below in conjunction with the drawings and related examples, and the embodiments of the present application are not limited to the following examples, and the present application relates to the necessary components in the related technical field, which should be regarded as the known technology in the technical field, and is known and mastered by the person skilled in the art.

[0021] In combination Figures 1 to 4As shown, a high-temperature welding pressure non-woven fabric material changing device, comprising a pair of unwinding rollers one 1 and two 2 arranged on the rack 0, and a connecting piece one 3 and a connecting piece two 4 arranged symmetrically to the non-woven fabric material plane, the connecting piece one 3 or the connecting piece two 4 is composed of a rotary motor 5 connected with the rack 0, a triangular frame 6 fixedly connected with the output end of the rotary motor 5, a connecting pressure plate 7 arranged at one corner of the movable end of the triangular frame 6, the output end of the rotary motor 5 is coaxially connected with a driving gear 8, the driving gear 8 is connected with a pressing balance wheel piece 11 which is also coaxially connected with a driven gear 10 through a transmission member 9 with a transmission ratio > 1, the output end of the pressing balance wheel piece 11 is connected with a conductive pressing shaft 12, the connecting pressure plate 7 is provided with a pressure contact surface 70 facing the non-woven fabric material plane, the pressure contact surface 70 is fixedly connected with an electric heating element 71, the connecting pressure plate 7 away from the pressure contact surface 70 is provided with a conductive block 72 in conduction with the electric heating element 71, the surface of the conductive block 72 away from the position of the rotating core of the triangular frame 6 is provided with a blocking end 73 with a surface profile adapted to the shape of the conductive pressing shaft 12.

[0022] The material changing device of the present application is different from the prior art in the following aspects: first, the electric heating element 71 is preferably only provided with a working element and necessary circuit safety components, and no other electric components are provided, and the circuit of the electric heating element 71 is connected to the conductive block 72 and the blocking end 73 on the opposite side of the pressure contact surface 70 through a wire, and then a high-power working current is output to the electric heating element 71 through the conductive pressing shaft 12 in communication with the circuit, and other non-conductive structures are insulated and protected by necessary means, and by removing unnecessary electric structures from the connecting piece, the power specification of the electric heating element 71 is maximized, the electric heating element 71 is powered externally to achieve high-power and high-temperature output, and the technical purpose of rapid heating and rapid on-off is achieved in the subsequent high-temperature welding process, thereby shortening the time required for the hot welding process, reducing the torque burden of the rotary motor 5, and ultimately improving the overall working efficiency and working quality of the equipment.

[0023] It is worth noting that the surface profile of the blocking end 73 is preferably a circular arc surface adapted to the surface of a cylinder, which can improve the contact rate with the conductive pressing shaft 12, improve the stability of power supply and force transmission, and help the connecting pressure plate 7 to work better.

[0024] In the present application, as a ring of the circuit connection of the electric heating element 71, the pressing balance wheel element 11 is in gear engagement with the output shaft of the rotary motor 5 through the driving gear 8 with a transmission ratio > 1, which is generally preferably a gear transmission, and can also be a belt wheel or other form of transmission, to achieve precise synchronous transmission. When the adapter one 3 or the adapter two 4 does not participate in the adapter operation of the fabric, the rotary motor 5 drives the adapter pressing plate 7 of the aforementioned components away from the running plane of the non-woven fabric, and at the same time, the pressing balance wheel element 11 also avoids the interference of the conductive pressing shaft 12 to its movement, and avoids the early connection of the circuit; when the adapter pressing plate 7 needs to be pressed, it can also follow the established movement sequence and trajectory, and through the reasonable setting of the transmission ratio of the transmission member 9, the conductive pressing shaft 12 is later than the adapter pressing plate 7, and when the adapter pressing plate 7 enters the working position, the conductive pressing shaft 12 realizes the conduction of the electric heating element 71 through the mutual contact with the conductive block 72, and then completes the subsequent material changing work; further, when a certain pressing force is required, the pressing balance wheel element 11 can also push the adapter pressing plate 7 along the direction perpendicular to the running plane of the non-woven fabric, so that the fabric between different unwinding rollers is more closely attached, thereby positively affecting the effect of high-temperature welding and pressing of the adapter material.

[0025] It should be pointed out that the high-temperature welding and pressing in the present application refers to a temperature upper limit or a value close to the temperature upper limit that meets the required melting temperature of the non-woven fabric and does not excessively damage the physical properties of the non-woven fabric. Those skilled in the art can control the current flowing into the electric heating element 71 through a reasonably set electric control structure to change the output temperature of the electric heating element 71, thereby realizing the material changing and adapter function of the required non-woven fabric.

[0026] Generally, non-woven fabric consumption occurs in various links of absorbent product production, and as the ear band structure of paper diapers in absorbent products, the usage amount is large, the consumption speed is fast, and the need for non-woven fabric material changing and adapter is relatively high. The width of this type of non-woven fabric is usually narrow, and the material changing and adapter device described in the present application is better adapted to the needs of this type of non-woven fabric. According to the actual processing needs, the structure of the device described in the present application can also be adjusted in size according to the requirements of the specifications, so as to meet the material changing process of other non-woven fabrics.

[0027] In combination Figures 1 to 4As shown in one of the preferred embodiments of the present application, the pressing balance wheel member 11 is composed of a fixed frame 110 fixedly connected with the frame 0 and hingedly connected with the driven gear 10, a rotating disc 111 coaxially connected with the driven gear 10, a linear mechanism 112 fixed on the surface of the rotating disc 111, and a balance wheel 113 fixedly connected with the output end of the linear mechanism 112 and initially coaxial with the shaft of the driven gear 10. The shaft end of the conductive pressing shaft 12 is perpendicular to the end surface of the balance wheel 113 and connected with the edge of the balance wheel 113, and the conductive pressing shaft 12 is further connected with a wire passing through the frame 0 and connected with the circuit. In the above structure, the fixed frame 110 is preferably assembled in a structure form in which at least three connection points are fixedly connected with the frame 0, and the driven gear 10 and the rotating disc 111 are coaxially and fixedly hingedly connected with the fixed frame 110. The rotating disc 111 is controlled to rotate by the driven gear 10 synchronously with the driving gear 8, thereby controlling the swing angle of the linear mechanism 112 fixedly connected with the rotating disc 111. The conductive pressing shaft 12 is connected with the blocking end 73 of the conductive block 72 while avoiding the movement track of the abutting pressing plate 7, so that the positional relationship between them is unique and stable, which helps to prolong the operation period of the equipment and reduce the probability of failure. The above structure, in combination with the transmission ratio of the transmission member 8>1, actually drives the pressing balance wheel member 11 by a force-saving lever through the rotating motor 5, so that the burden of the rotating motor 5 is not significantly increased.

[0028] When the output end of the linear mechanism 112 remains stationary in the default state, the shaft center of the conductive pressing shaft 12 is also concentric with the driven gear 10 or the rotating disc 111. Therefore, when the pressing assistance is not performed, the movement track of the conductive pressing shaft 12 is the easiest to calculate, and no additional driving of the linear mechanism 112 is required. When the pressing assistance is needed, the output end of the linear mechanism 112 is driven to move, and the movement force of the conductive pressing shaft 12 has a decomposition direction parallel to the pressing direction of the abutting pressing plate 7. Therefore, a pressing assistance force can be continuously output while maintaining the electrified state of the conductive pressing shaft 12, so that the abutting pressing plate 7 can better achieve the purpose of high-temperature welding and pressing. The linear driving structure does not affect the rotating movement track of the rotating disc 111, so it has a good transmission and conduction effect.

[0029] In combination Figure 3As shown in the drawings, in one of the preferred embodiments of the present application, the outer edge of the rotating disc 111 is provided with an inner ring body 114 surrounding the linear mechanism, the frame 0 is provided with an outer ring body 115 sleeved outside the inner ring body 114, and the contact surfaces of the inner ring body 114 and the outer ring body 115 are connected with each other in a sliding pair or a rolling pair. In combination with the drawings, the structure helps to more stably realize the transmission of the driven gear 10 and the press balance wheel 11 hinged by the fixed frame 110, especially by forming a bearing-like transmission relationship between the inner ring body 114 and the outer ring body 115, which provides better physical structure support for the press balance wheel 11 to correctly transmit angular momentum, torque and electric energy.

[0030] In one of the preferred embodiments of the present application, the outer ring body 115 is a conductor of an access circuit, the inner ring body 114 is an insulator, the outer ring body 115 is provided with an insulating layer on the outer surface, and the conductive press shaft 12 is in conduction with the inner surface of the outer ring body 115 through a wire. Based on the further preferred embodiment of the previous embodiment, the outer ring body 115 realizes the safety of external direct contact through the insulating layer, and the inner inner ring body 114 is preferably made of carbon fiber or high-strength resin material to avoid the accidental situation of current leakage. Since the inner and outer ring bodies are under the action of the force-saving lever, the load is not large, so non-metallic materials can be used to prepare the inner ring body 114, which can also meet the processing requirements. The outer ring body 115 can realize power supply through the brush structure connected with the circuit of the conductive press shaft 12, which is very flexible.

[0031] In combination with Figure 3 and Figure 4 As shown in the drawings, in one of the preferred embodiments of the present application, the conductive press shaft 12 is composed of a conductor inner core 120 connected with the circuit and rigidly fixed with the balance wheel 113, and a conductive layer 121 with a smooth surface sleeved outside the conductor inner core 120. In this structure, the conductor inner core 120 can be made of an alloy material with good conductivity and relatively high hardness, and the requirement for surface roughness is relatively low, reducing the frequency of replacement. The surface of the conductive layer 121 needs to have good roughness performance, so that it can be more quickly in contact with the conductive block 72 and efficiently transmit electric energy, which helps the subsequent high-temperature welding and pressing of the interface material to proceed smoothly.

[0032] In combination with Figure 1 , Figure 2 and Figure 4As shown in one of the preferred embodiments of the present application, the frame 0 is provided with a clearance hole 13 with a diameter larger than the conductive pressing shaft, and the end face of the balance wheel 113 is recessed into the outer surface of the clearance hole 13. The provision of the clearance hole helps the balance wheel 113 to sink into the clearance hole 13, and only the conductive pressing shaft 12 is exposed on the surface of the frame 0, which on the one hand facilitates the operator to directly observe the working condition of the linear mechanism 112 inside through the clearance hole 13, and on the other hand avoids the balance wheel 113 occupying external space, which is beneficial to reducing the setting requirements of the tripod 6.

[0033] In combination Figure 3 As shown in one of the preferred embodiments of the present application, the linear mechanism 112 is a linear motor fixedly connected with the center line position of the rotating disc 111, and the movement direction of the linear mechanism 112 forms an acute angle with the radius line where the conductive pressing shaft 12 is located. Generally speaking, the provision of the acute angle helps the position of the conductive pressing shaft 12 in the default state to meet the needs of transmission conduction, and through the provision of the appropriate transmission ratio of the gear transmission pair, the needs of on-off conduction and torque transmission are met.

[0034] In combination Figure 1 And Figure 4 As shown in one of the preferred embodiments of the present application, the rotating core and the other angle of the tripod 6 are movably connected with the roller 14. The provision of the roller 14 is appropriate to meet the specific processing requirements of the equipment, and those skilled in the art can set it up according to the needs.

[0035] In general, the present application reasonably combines the structure of high-temperature welding and pressing with the structure of automatic connection and material changing, effectively improves the material changing speed of the connection structure position and the stability of the connection weld between different fabrics without increasing the burden of the connection structure and significantly improving the overall structural complexity, which has a positive significance for expanding the enterprise and has good popularization value.

[0036] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A high-temperature welded nonwoven fabric changing device, comprising a pair of unwinding rollers 1 and 2 arranged on a frame, and a connecting member 1 and a connecting member 2 symmetrically arranged with respect to the nonwoven fabric feeding plane, wherein each connecting member 1 or connecting member 2 consists of a rotary motor connected to the frame, a tripod fixedly connected to the output end of the rotary motor at one corner, and a connecting pressure plate disposed at one corner of the movable end of the tripod, characterized in that, The output end of the rotary motor is coaxially connected with a driving gear, the driving gear is connected with a press pendulum element which is also coaxially connected with a driven gear through a transmission element with a transmission ratio > 1, the output end of the press pendulum element is connected with a conductive press shaft, the connecting pressure plate is provided with a pressure contact surface facing the non-woven fabric feeding plane, the pressure contact surface is fixedly connected with an electric heating element, the connecting pressure plate is provided with a conductive block opposite to the electric heating element, and the surface of the conductive block is provided with a blocking end with a surface profile adapted to the shape of the conductive press shaft away from the position of the tripod rotating core. The press pendulum element is composed of a fixed frame fixedly connected with the rack and hingedly connected with the driven gear, a rotating disc coaxially connected with the driven gear, a linear mechanism fixed on the surface of the rotating disc, and a pendulum connected with the output end of the linear mechanism and coaxial with the driven gear in the initial state, the shaft end of the conductive press shaft is perpendicular to the end surface of the pendulum and connected to the edge of the pendulum, and the conductive press shaft is also connected with a wire passing through the rack and connected to the circuit. The outer edge of the rotating disc is provided with an inner ring body surrounding the linear mechanism, the rack is provided with an outer ring body sleeved on the outside of the inner ring body, and the contact surfaces of the inner ring body and the outer ring body are connected with each other in sliding pairs or rolling pairs. The outer ring body is a conductor connected to the circuit, the inner ring body is an insulator, the outer surface of the outer ring body is provided with an insulating layer, and the conductive press shaft is in conductive connection with the inner surface of the outer ring body through the wire. The linear mechanism is a linear motor fixedly connected with the center line position of the rotating disc, and the moving direction of the linear mechanism and the radius line where the conductive press shaft is located form an acute angle.

2. The high temperature weld press nonwoven blanket changer of claim 1, wherein, The conductive press shaft is composed of a conductor inner core connected to the circuit and rigidly connected with the pendulum, and a conductive layer with a smooth surface sleeved on the outside of the conductor inner core.

3. The high temperature weld press nonwoven cloth refueling device according to claim 1, characterized by, The rack is provided with an avoidance hole with a diameter larger than that of the conductive press shaft, and the end surface of the pendulum is recessed in the outer surface of the avoidance hole.

4. The high temperature weld press nonwoven cloth refueling device according to claim 1, characterized by, The rotating core and the other angle of the tripod are movably connected with rollers.

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