Laminating machine and roll changing device thereof

Abstract

The utility model discloses a laminating machine and a roll changing device thereof, and belongs to the technical field of laminating machines, the device comprises a rack, an ultrasonic welding assembly, and a moving device and a pressing rod which are arranged on the rack; the ultrasonic welding assembly is connected with the moving device; the welding end of the ultrasonic welding assembly and the material pressing face of the abutting rod are oppositely arranged. The material pressing face of the abutting rod is located on the moving path of the welding end of the ultrasonic welding assembly. Two materials to be welded generate high-speed friction by utilizing the characteristics of ultrasonic welding, and when the materials reach the melting point of the materials, the joint of the two materials is pressed against the pressing surface of the pressing rod through the welding end of the ultrasonic welding assembly, so that the joint is cooled and shaped under the action of pressure, and integral butt joint is realized under the condition of non-colloid bonding; and therefore, the butt joint strength can be improved, and the problem that black impurities are easily brought into joints due to colloid bonding can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of laminating machines, and particularly relates to a laminating machine and a roll changing device thereof. Background Art

[0002] Existing environmentally friendly laminating film materials are usually made of three layers of materials, namely, the face mask, mesh and base film. Since the face mask is a roll material, the laminating process involves the corresponding roll replacement problem. In order to ensure that the assembly line can still work normally before and after the roll replacement, the head end of the new roll material and the tail end of the old roll material are generally glued with double-sided tape to ensure the continuity of the new and old roll materials, so that the roll material can be continuously moved to the laminating end of the laminating machine under the drive of the subsequent roll device, and then the corresponding laminating film can be produced.

[0003] However, in actual use, it was found that this method of changing rolls and splicing materials still has the following problems:

[0004] 1) In the process of butt jointing the new and old rolls, unavoidable joints will be produced. This section of the joint is an abnormal joint. Because the double-sided tape has weak adhesion, in order to ensure the connection strength after the new and old rolls are butt jointed, under normal circumstances, about 1m of abnormal joints will be produced. Even after the above treatment, the rolls bonded by the double-sided tape are still prone to fall off during the traction process. Once they fall off or the film jointing fails, several meters or more than ten meters of abnormal joints will be further formed, which will greatly increase the manufacturing cost and affect the economic benefits.

[0005] 2) Environmentally friendly laminating film materials are usually hot-stick products, that is, the mask will be heated to a molten state by the corresponding heating roller, and then pressed together with the mesh to form an airtight material. Since the mask is joined with double-sided adhesive, the double-sided adhesive at the joint will sometimes be heated and melted, causing the adhesive to stick to the roller surface of the heating roller; over time, the residual adhesive on the roller surface will gradually form black impurities under long-term heating, and the black impurities will be brought into the product as the heating roller rotates, thus affecting the quality of the product.

[0006] 3) The existing material replacement and film splicing methods are cumbersome to operate and have high labor intensity for operators. That is, when splicing, operators need to hoist the new coil onto the rack in advance and paste double-sided tape at the head end of the new coil. When pasting, the surface of the coil and the double-sided tape must be flat to ensure that the finished product is not wrinkled or abnormal; when splicing, at least two operators are required to rotate the new coil so that the end of the new coil with double-sided tape is connected to the tail end of the old coil. After the new coil is firmly bonded and taken away for a distance, the operator uses a utility knife to cut the film of the old coil to complete the docking of the new and old coils.

[0007] 4) The additional cost of changing materials and splicing is high. That is, when the production line of environmentally friendly laminating film is in full power state, a splicing station in a machine will use double-sided tape worth about 200,000 yuan a year to complete the corresponding material change and splicing work. With the increase in production volume, the overall consumables cost will be a huge expense. Utility Model Content

[0008] The technical problem to be solved by the utility model is: how to provide a roll changing device and a laminating machine with the roll changing device, so as to improve the docking quality of the laminating machine when changing materials and splicing films, and reduce the cost of changing materials and splicing films.

[0009] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0010] A roll changing device comprises a frame, an ultrasonic welding assembly, and a moving device and a pressing rod arranged on the frame;

[0011] The ultrasonic welding assembly is connected to the mobile device;

[0012] The welding end of the ultrasonic welding assembly and the pressing surface of the pressing rod are arranged opposite to each other;

[0013] The material pressing surface of the pressing rod is located on the moving path of the welding end of the ultrasonic welding component.

[0014] Further, the ultrasonic welding assembly includes an ultrasonic transducer and a pressing head;

[0015] The pressing head is connected to the ultrasonic transducer;

[0016] The pressing end of the pressing head and the pressing surface of the pressing rod are arranged opposite to each other.

[0017] Furthermore, in the length direction of the pressure rod, at least three moving devices are provided on the same side of the pressure rod;

[0018] The welding ends of the ultrasonic welding components are all located on the same virtual straight line;

[0019] The extension direction of the virtual straight line is parallel to the length direction of the pressing rod.

[0020] Furthermore, the frame is also provided with a first unloading shaft and a second unloading shaft;

[0021] The first unloading shaft and the second unloading shaft are both detachably connected to the frame.

[0022] Furthermore, a guide roller group is also provided on the frame;

[0023] The guide roller group is arranged on the moving path of the welding end of the ultrasonic welding assembly;

[0024] The welding end of the ultrasonic welding assembly can pass through the roller gap of the guide roller group and press against the pressing surface of the pressing rod.

[0025] Further, it also includes a buffer roller and a linear displacement assembly;

[0026] The linear displacement assembly is arranged on the frame;

[0027] Both ends of the buffer roller are slidably connected to the frame via a linear displacement assembly;

[0028] When the first discharge shaft or the second discharge shaft discharges material, the material passes through the guide roller group and the buffer roller in sequence, and a part of the material after the label is located between the welding end of the ultrasonic welding assembly and the pressing surface of the pressing rod.

[0029] Furthermore, when the first unloading shaft or the second unloading shaft unloads materials, the linear displacement component drives the buffer roller to drive the materials passing through the buffer roller around the label to move away from the guide roller group;

[0030] When the first unwinding shaft or the second unwinding shaft changes coils to receive materials, the linear displacement assembly drives the buffer roller to drive the materials wound around the label and passing through the buffer roller to approach the guide roller group.

[0031] Furthermore, a laminating machine is provided, comprising a laminating machine body and the roll changing device mentioned above;

[0032] The laminating machine body comprises a laminating roller group;

[0033] The discharging end of the roll changing device is arranged opposite to the feeding end of the laminating roller group.

[0034] The beneficial effect of the utility model is that the roll changing device provided by the utility model utilizes the characteristics of ultrasonic welding to generate high-speed friction between the two materials to be welded. When the materials reach their own melting point, the welding end of the ultrasonic welding component presses the joint of the two materials against the pressing surface of the pressing rod, so that the joint is cooled and formed under pressure, thereby achieving integrated docking without colloid bonding, thereby improving the docking strength and avoiding the problem of black impurities being easily introduced into the joint due to colloid bonding. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Shown is a structural schematic diagram of a roll changing device according to a specific embodiment of the utility model;

[0036] Figure 2 It is a structural schematic diagram of a roll changing device (equipped with an old roll body and a new roll body) according to a specific embodiment of the utility model;

[0037] Figure 3The figure shows a partial front view of the roll changing device (when changing rolls and splicing materials) according to a specific embodiment of the utility model;

[0038] Description of labels:

[0039] 1. Frame;

[0040] 2. Mobile device;

[0041] 3. Pressure rod;

[0042] 4. Ultrasonic transducer;

[0043] 5. Pressing head;

[0044] 6. The first unwinding shaft;

[0045] 7. Second unloading shaft;

[0046] 8. Guide roller set;

[0047] 9. Buffer roller;

[0048] 10. Linear displacement assembly;

[0049] 11. The old roll material body;

[0050] 12. New roll material body. DETAILED DESCRIPTION

[0051] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0052] The most critical concept of the utility model is: utilizing the characteristics of ultrasonic welding to make the material rub at high speed to reach its own melting point, and then pressing the welding head against the pressing surface of the pressing rod through the welding end of the ultrasonic welding component, so that the joint is cooled and formed under the action of pressure, thereby realizing integrated docking without colloid bonding, thereby improving the docking strength and avoiding the problem of black impurities being easily introduced into the joint due to colloid bonding.

[0053] Please refer to Figures 1 to 3 The roll changing device provided by the utility model comprises a frame 1, an ultrasonic welding assembly, and a moving device 2 and a pressing rod 3 arranged on the frame 1;

[0054] The ultrasonic welding assembly is connected to the mobile device 2;

[0055] The welding end of the ultrasonic welding assembly and the pressing surface of the pressing rod 3 are arranged opposite to each other;

[0056] The pressing surface of the pressing rod 3 is located on the moving path of the welding end of the ultrasonic welding assembly.

[0057] Specifically, the moving device 2 is any commercially available device that can drive an object to move in a straight line, such as a cylinder, a linear guide, or a component that drives the movable end of a lead screw to move in a straight line through a motor.

[0058] From the above description, it can be seen that the beneficial effects of the utility model are: providing a roll changing device, utilizing the characteristics of ultrasonic welding to make the material rub at high speed to reach its own melting point, and then pressing the welding head against the pressing surface of the pressing rod 3 through the welding end of the ultrasonic welding component, so that the joint is cooled and formed under pressure, thereby completing the docking of the new and old rolls; compared with the roll changing method of the existing laminating machine, the roll changing device of the utility model can realize roll changing and material joining without colloid bonding, that is, it ensures that the joint does not need to be doped with adhesives of other materials, and the connection structure is completely composed of the new and old rolls themselves, thereby improving the docking strength and avoiding the problem of black impurities being easily introduced into the joint due to colloid bonding.

[0059] Furthermore, the ultrasonic welding assembly includes an ultrasonic transducer 4 and a pressing head 5;

[0060] The pressing head 5 is connected to the ultrasonic transducer 4;

[0061] The pressing end of the pressing head 5 and the pressing surface of the pressing rod 3 are arranged opposite to each other.

[0062] The material pressing head 5 is any commercially available block structure capable of pressing the material. The material pressing head 5 of the utility model is preferably a rectangular block structure, and any surface of the rectangular block is arranged opposite to the material pressing surface of the pressing rod 3.

[0063] Specifically, the ultrasonic transducer 4 includes a signal receiving end and a vibration end; the pressing head 5 is connected to the ultrasonic transducer 4 through the vibration end; and after the external electrical oscillation signal is transmitted to the inside of the ultrasonic transducer 4 through the signal receiving end, the ultrasonic transducer 4 can drive the pressing head 5 to enter a vibration state; the ultrasonic transducer 4 can be obtained from Changsha Xiongsheng Machinery Technology Co., Ltd., and the ultrasonic transducer 4 of the utility model is any one of the ultrasonic transducers sold by the company; the pressing head 5 is made of any commercially available metal material, such as 7075 aviation aluminum.

[0064] From the above description, it can be seen that the design has made specific improvements to the composition structure of the ultrasonic welding component. When the ultrasonic transducer 4 receives the corresponding electrical oscillation signal, it can cause the electric field or magnetic field of the electrical energy storage element in the ultrasonic transducer 4 to change. This change in the electric field or magnetic field can further generate a driving force for the mechanical vibration system of the ultrasonic transducer 4, causing the pressing head 5 connected thereto to enter a vibration state, and then through the driving action of the moving device 2, the high-speed vibrating pressing head 5 presses the two material joints to be welded against the pressing surface of the pressing rod 3, thereby providing structural support for the joint to be cooled and formed under pressure to achieve integrated docking.

[0065] Furthermore, at least three moving devices 2 are provided on the same side of the pressing rod 3 in the length direction of the pressing rod 3;

[0066] The welding ends of the ultrasonic welding components are all located on the same virtual straight line;

[0067] The extending direction of the virtual straight line is parallel to the length direction of the pressing rod 3 .

[0068] The pressing rod 3 is any commercially available rod-shaped structure capable of pressing materials. The pressing rod 3 of the utility model is preferably a rectangular rod-shaped structure, so that the pressing surface of the pressing rod 3 can be adapted to the pressing head 5 of the rectangular structure, so that the new and old coils can fit tightly during pressing.

[0069] From the above description, it can be seen that the design has further optimized the number of ultrasonic welding components and the positional relationship between the ultrasonic welding components and the pressure rod 3. By increasing the number of ultrasonic welding components, the corresponding welding points can be increased, thereby effectively improving the connection strength of the material after welding; and the welding ends of the ultrasonic welding components are all located on the same virtual straight line, which can ensure the flatness of the welding points and avoid wrinkles in the material after welding, thereby affecting the thermal bonding effect of the welded material with other materials during the subsequent thermal bonding process.

[0070] Furthermore, the frame 1 is also provided with a first unloading shaft 6 and a second unloading shaft 7;

[0071] The first unloading shaft 6 and the second unloading shaft 7 are both detachably connected to the frame 1 .

[0072] From the above description, it can be seen that the first unloading shaft 6 and the second unloading shaft 7 can both be used to wind the material to be processed. When the material on a certain unloading shaft is about to finish unloading, the tail end of the coil on it can be welded to the head end of the material on the other unloading shaft; and after the unloading is completely completed, the unloading shaft is removed to rewind the material, and after the winding is completed, it is re-fixed on the frame 1, waiting for the other unloading shaft to finish unloading, and the above-mentioned operation process is followed in sequence and alternately cycled to achieve continuous roll changing and film splicing work.

[0073] Furthermore, a guide roller group 8 is also provided on the frame 1;

[0074] The guide roller group 8 is arranged on the moving path of the welding end of the ultrasonic welding assembly;

[0075] The welding end of the ultrasonic welding assembly can pass through the roller gap of the guide roller group 8 and press against the pressing surface of the pressing rod 3.

[0076] Furthermore, the roll changing device further comprises a buffer roller 9 and a linear displacement assembly 10;

[0077] The linear displacement assembly 10 is arranged on the frame 1;

[0078] Both ends of the buffer roller 9 are slidably connected to the frame 1 through a linear displacement assembly 10;

[0079] When the first unloading shaft 6 or the second unloading shaft 7 unloads the material, the material passes through the guide roller group 8 and the buffer roller 9 in sequence, and a part of the material after wrapping the label is located between the welding end of the ultrasonic welding assembly and the pressing surface of the pressing rod 3.

[0080] Specifically, there is no specific requirement for the positional relationship between the buffer roller 9, the guide roller, and the two unwinding shafts, as long as the coil can be wound around the label in sequence through the unwinding shaft, the guide roller, and the buffer roller 9; the buffer roller 9, the guide roller, and the two unwinding shafts of the utility model are preferably used as follows: Figure 3 The layout shown is that two discharge shafts are arranged on the top of the frame 1, the buffer roller 9 is arranged at the bottom of the frame 1, and the guide roller is arranged between the buffer roller 9 and the discharge shaft; and the axis of the buffer roller 9, the axis of the guide roller and the axis of the two discharge shafts are parallel to each other; the linear displacement component 10 is any commercially available device that can drive an object to move in a straight line, such as a cylinder, a linear guide, or a component that drives the movable end of the screw to move in a straight line through a motor.

[0081] Furthermore, when the first unloading shaft 6 or the second unloading shaft 7 unloads materials, the linear displacement assembly 10 drives the buffer roller 9 to drive the materials passing through the buffer roller 9 around the label to move away from the guide roller group 8;

[0082] When the first unwinding shaft 6 or the second unwinding shaft 7 changes coils and splices materials, the linear displacement assembly 10 drives the buffer roller 9 to drive the materials wound around the label and passing through the buffer roller 9 to approach the guide roller group 8 .

[0083] Specifically, the moving direction of the linear displacement component 10 is parallel to the moving direction of the moving device 2; and the moving direction of the linear displacement component 10 and the moving direction of the moving device 2 are both perpendicular to the axis of the buffer roller 9, the axis of the guide roller and the axis of the two discharge shafts.

[0084] From the above description, it can be seen that the design has made further improvements to the composition structure of the roll-changing device of the utility model. When the equipment is unloading, in order to improve the winding efficiency of the subsequent winding equipment, the cooperation between the buffer roller 9 and the guide roller group 8 can keep the coiled material in a tensioned state, avoiding the problem of mutual slippage between the material and the rollers during the unloading process, thereby affecting the winding efficiency; at the same time, in order to achieve the tensioning effect on the material, the buffer roller 9 will keep the material passing through its outer surface away from the guide roller group 8. This operation can extend the moving distance of the material, that is, Figure 3 α in the figure, so as to provide structural support for the subsequent continuous winding of materials during the subsequent roll-changing and splicing. That is, when the roll-changing and splicing is performed, the first unloading shaft 6 or the second unloading shaft 7 must be in a stopped state, because the buffer roller 9 reserves a certain length of material movement distance during the unloading process. Therefore, at this time, it is only necessary to gradually move the material passing through the outer surface of the buffer roller 9 close to the guide roller group 8 to shorten the material movement distance, so as to ensure that the corresponding winding work can be carried out while the roll-changing and splicing is performed. Since ultrasonic welding improves the efficiency of the roll-changing and splicing, the material on the outer surface of the buffer roller 9 can be completely close to the guide roller group 8 to complete the winding and splicing work, and then the corresponding first unloading shaft 6 or the second unloading shaft 7 can be started again to perform a new round of unloading work. At the same time, the linear displacement component 10 also drives the buffer roller 9 again to drive the material passing through the buffer roller 9 away from the guide roller group 8 to prepare for the next roll-changing and splicing work.

[0085] The utility model also provides a laminating machine, comprising a laminating machine body and the roll changing device mentioned above;

[0086] The laminating machine body includes a laminating roller set;

[0087] The discharging end of the roll changing device is arranged opposite to the feeding end of the pressing roller group.

[0088] It can be seen from the above description that by directly transferring the unwound coil to the laminating roller group of the laminating machine, structural support is provided for realizing the composite of multiple coils.

[0089] The roll changing device of the utility model can assist the laminating work of composite materials, such as environmentally friendly laminating films, to ensure the continuity of the laminating work.

[0090] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is:

[0091] A roll changing device comprises a frame 1, an ultrasonic welding assembly, and a moving device 2, a pressure rod 3, a first unloading shaft 6, a second unloading shaft 7, a guide roller group 8, a buffer roller 9 and a linear displacement assembly 10 arranged on the frame 1; the ultrasonic welding assembly is connected to the moving device 2; the welding end of the ultrasonic welding assembly and the pressing surface of the pressure rod 3 are arranged opposite to each other; the pressing surface of the pressure rod 3 is located on the moving path of the welding end of the ultrasonic welding assembly; the first unloading shaft 6 and the second unloading shaft 7 are both detachably connected to the frame 1; the guide roller group 8 is arranged on the moving path of the welding end of the ultrasonic welding assembly; the welding end of the ultrasonic welding assembly can pass through the roller gap of the guide roller group 8 and press against the pressing surface of the pressure rod 3.

[0092] The ultrasonic welding assembly includes an ultrasonic transducer 4 and a pressing head 5; the pressing head 5 is connected to the ultrasonic transducer 4; the pressing end of the pressing head 5 and the pressing surface of the pressing rod 3 are arranged opposite to each other; in the length direction of the pressing rod 3, nine moving devices 2 are arranged on the same side of the pressing rod 3; the welding ends of the ultrasonic welding assembly are all located on the same virtual straight line; the extension direction of the virtual straight line is parallel to the length direction of the pressing rod 3.

[0093] Both ends of the buffer roller 9 are slidably connected to the frame 1 through a linear displacement component 10; when the first discharge shaft 6 or the second discharge shaft 7 discharges the material, the material passes through the guide roller group 8 and the buffer roller 9 in turn, and part of the area of ​​the material after winding the label is located between the welding end of the ultrasonic welding component and the pressing surface of the pressure rod 3.

[0094] When the first unloading shaft 6 or the second unloading shaft 7 unloads material, the linear displacement component 10 drives the buffer roller 9 to drive the material that has passed through the buffer roller 9 around the label to move away from the guide roller group 8; when the first unloading shaft 6 or the second unloading shaft 7 changes rolls and splices material, the linear displacement component 10 drives the buffer roller 9 to drive the material that has passed through the buffer roller 9 around the label to move closer to the guide roller group 8.

[0095] Embodiment 1 of the present utility model is:

[0096] A laminating machine comprises a laminating machine body and a roll changing device in the first embodiment; the laminating machine body comprises a laminating roller group; a discharge end of the roll changing device is arranged opposite to a feed end of the laminating roller group.

[0097] The working principle of the utility model is:

[0098] Unwinding stage: according to actual needs, the staff will wind the corresponding coil from any unwinding shaft and place it on the frame 1, and then wind the coil in turn through the guide roller, buffer roller and peripheral winding device, and start the peripheral winding device to unwind the coil and apply film.

[0099] Reel changing and material joining stage: first, stop the rotation of the first unwinding shaft 6 and the second unwinding shaft 7, place the unwinding shaft with the new coil wound on the frame 1, and place the head end of the new coil between the pressing end of the pressing head 5 and the pressing surface of the pressing rod 3; then, start the moving device 2; the moving device 2 drives the material to move to the pressing surface of the pressing rod 3 through the pressing head 5, until the tail end of the old coil and the head end of the new coil are both pressed on the pressing surface of the pressing rod 3. At this time, the new and old coils are gradually melted under the high-speed friction of the pressing head 5 on the ultrasonic transducer 4, and are further squeezed by the pressing head 5. After cooling and shaping, the welding of the head and tail of the new and old coils is completed; during the welding process, in order to avoid affecting the overall work efficiency due to the shutdown of the production line, the linear displacement component 10 drives the material wrapped around the label passing through the outer surface of the buffer roller 9 to gradually approach the guide roller group 8; after the welding of the head and tail of the new and old coils is completed, the staff will cut off the remaining part of the old coil, and restart the first unloading shaft 6 and the second unloading shaft 7 to unload the material. At the same time, the linear displacement component 10 also drives the buffer roller 9 again to drive the material wrapped around the label passing through the buffer roller 9 away from the guide roller group 8, so as to prepare for the next coil change and material connection work.

[0100] When it is necessary to process a composite film composed of multiple rolls, the staff can set a corresponding number of roll-changing devices on one side of the feed end of the laminating roller group of the laminating machine body, and assemble the corresponding rolls that can compose the composite film on the roll-changing devices; then, arrange the starting ends of each roll in accordance with the specified stacking sequence; then, put the starting end into the feed end of the laminating roller group, and through the rolling of the laminating roller group, all the rolls can be continuously squeezed and compounded into a flat fabric structure; finally, the laminated composite fabric is further transported to subsequent processing equipment.

[0101] To sum up, the roll-changing device provided by the utility model utilizes the characteristics of ultrasonic welding to make the material rub at high speed to reach its own melting point, and then presses the welding head against the pressing surface of the pressing rod through the welding end of the ultrasonic welding component, so that the joint is cooled and formed under pressure, thereby completing the docking of the new and old rolls of material; compared with the roll-changing method of the existing laminating machine, the roll-changing device of the utility model can realize roll-changing and material joining without colloid bonding, that is, it ensures that the joint does not need to be doped with adhesives of other materials, and the connection structure is completely composed of the new and old rolls themselves, thereby improving the docking strength and avoiding the problem of black impurities being easily introduced into the joint due to colloid bonding.

[0102] Compared with the roll changing method of the traditional laminating machine, the improved roll changing device can simplify the operation and reduce the manual workload when changing rolls and splicing materials; compared with the double-sided adhesive film splicing, ultrasonic welding can melt the film to be spliced ​​and then weld it together through pressing, so as to ensure that the film joint is more firm and reliable; and because ultrasonic welding improves the firmness of the roll splicing, therefore, not only will there be only joint abnormalities of less than 1 meter at the joint, but also because the welding joint only has the roll body, there will be no risk of glue retention, which effectively solves the problem of black spot impurities in the product caused by glue retention, and also greatly reduces the waste of abnormal products, that is, the power of a 15kHz ultrasonic welding component is 2.5kw, calculated as seven units (the minimum number of equipment to achieve firm roll change and splicing), the single welding power of a welding station is 17.5kw, and the single welding time is calculated as 1s. Welding 3600 times consumes 17.5 degrees of electricity and costs about 50 yuan. If the film is spliced ​​3,600 times by sticking double-sided tape, and the film width is calculated as 2 meters, 7,200 meters of double-sided tape will be consumed. Under the premise of ensuring correct bonding, the cost of double-sided tape is about 2,800 yuan. It can be seen that the improved solution will greatly reduce the cost of film splicing; at the same time, the fully automatic splicing method can further upload information data such as the status of the ultrasonic welding equipment, number of welds, welding time, welding energy, etc. to the corresponding resource planning system, so as to provide support for subsequent data monitoring and digital management.

[0103] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A roll changing device, characterized in that: It comprises a frame, an ultrasonic welding assembly, and a moving device and a pressing rod arranged on the frame; The ultrasonic welding assembly is connected to the mobile device; The welding end of the ultrasonic welding assembly and the pressing surface of the pressing rod are arranged opposite to each other; The material pressing surface of the pressing rod is located on the moving path of the welding end of the ultrasonic welding component.

2. The roll changing device according to claim 1, characterized in that: The ultrasonic welding assembly includes an ultrasonic transducer and a pressing head; The pressing head is connected to the ultrasonic transducer; The pressing end of the pressing head and the pressing surface of the pressing rod are arranged opposite to each other.

3. The roll changing device according to claim 1, characterized in that: In the length direction of the pressing rod, at least three moving devices are provided on the same side of the pressing rod; The welding ends of the ultrasonic welding components are all located on the same virtual straight line; The extension direction of the virtual straight line is parallel to the length direction of the pressing rod.

4. The roll changing device according to claim 1, characterized in that: The frame is also provided with a first unloading shaft and a second unloading shaft; The first unloading shaft and the second unloading shaft are both detachably connected to the frame.

5. The roll changing device according to claim 4, characterized in that: The frame is also provided with a guide roller group; The guide roller group is arranged on the moving path of the welding end of the ultrasonic welding assembly; The welding end of the ultrasonic welding assembly can pass through the roller gap of the guide roller group and press against the pressing surface of the pressing rod.

6. The roll changing device according to claim 5, characterized in that: Also included are a buffer roller and a linear displacement assembly; The linear displacement assembly is arranged on the frame; Both ends of the buffer roller are slidably connected to the frame via a linear displacement assembly; When the first discharge shaft or the second discharge shaft discharges material, the material passes through the guide roller group and the buffer roller in sequence, and a part of the material after the label is located between the welding end of the ultrasonic welding assembly and the pressing surface of the pressing rod.

7. The roll changing device according to claim 5, characterized in that: When the first unloading shaft or the second unloading shaft unloads materials, the linear displacement component drives the buffer roller to drive the materials passing through the buffer roller around the label to move away from the guide roller group; When the first unwinding shaft or the second unwinding shaft changes coils to receive materials, the linear displacement assembly drives the buffer roller to drive the materials wound around the label and passing through the buffer roller to approach the guide roller group.

8. A laminating machine, characterized in that: It comprises a laminating machine body and a roll changing device as claimed in any one of claims 1 to 7; The laminating machine body comprises a laminating roller group; The discharging end of the roll changing device is arranged opposite to the feeding end of the laminating roller group.

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