Automatic tension adjusting mechanism for automatic cutting and film pasting

Abstract

The invention relates to the technical field of film sticking machine cutting, in particular to an automatic tension adjusting mechanism for automatic cutting and film sticking, and adopts the technical scheme that the automatic tension adjusting mechanism comprises a rack, a lower operation table is fixedly mounted in the middle of the bottom of the rack, an upper operation table is fixedly mounted in the middle of the top of the rack, and the rack comprises a material guide table; a supporting frame is fixedly installed at the bottom of the material guiding table, a feeding assembly is fixedly installed on one side of the material guiding table, and adjusting assemblies are fixedly installed on the two sides of the material guiding table correspondingly. The feeding assembly comprises a feeding roller, and a limiting motor is installed at one end of the feeding roller in a transmission mode. The feeding assembly comprises two side plates, sliding grooves are formed in the two side plates, and a driven roller and a driving roller are slidably installed on the opposite sides of the two side plates through the sliding grooves. The problem that the quality of a finished product is reduced finally due to the fact that a film has certain toughness and the bag beating situation occurs during conveying can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of film laminating machine cutting, in particular to an automatic tension regulating mechanism for automatic film cutting. Background Art

[0002] After extensive searching, the publication number is CN112010089A, which discloses an automatic precision cutting device for a film laminating machine, including a conveying platform, a cutting box and a cutting knife, a support plate is provided on one side of the conveying platform, the cutting box is fixedly connected and arranged on the top of the support plate, the cutting box is located directly above the conveying platform, the cutting knife is connected and arranged with an intermittent driving structure, rotating rollers are rotatably connected at both ends of the top of the conveying platform, a conveyor belt is provided on the rotating roller, the rotating roller is provided with a side rotating shaft through a chain transmission connection, the side rotating shaft is rotatably connected to the conveying platform, a gear is fixedly connected to the side rotating shaft, the gear meshing transmission connection is provided with an incomplete gear, the incomplete gear is fixedly connected with a main rotating shaft, the main rotating shaft is rotatably connected to the conveying platform, a conveying motor is fixedly connected to the side of the conveying platform away from the support plate, and the output end of the conveying motor is fixedly connected to the main rotating shaft.

[0003] In the actual operation of the device in the existing technology, a series of problems that affect the quality of the finished product will occur. Specifically, as a commonly used material, the film itself has a certain toughness, and this characteristic will bring many inconveniences in the conventional film conveying process. When the film is conveyed in the device, due to its toughness, the film material often has pockets. This phenomenon means that the film cannot remain flat during transportation, and some films will form pocket-like protrusions or depressions, which seriously affects the normal conveying process of the film. In the case of this pocketing phenomenon, if the film operation or cutting process is continued, the film will not be able to fit flatly on the surface of the workpiece, which will result in the surface of the workpiece not being fully and evenly covered, resulting in the film and the surface of the workpiece not fitting tightly, bubbles or gaps. These problems will greatly affect the appearance quality of the finished product and may even affect its performance. For example, the protective effect or decorative effect of the film may be reduced, resulting in a significant reduction in the quality of the final finished product, which cannot meet the requirements of production and use. In order to effectively solve the above-mentioned problem of film bagging occurring during the film conveying and cutting process and the resulting reduction in the quality of the finished product, an automatic tension adjustment mechanism for automatic cutting of film is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic tension adjustment mechanism for automatic cutting and film laminating, which can effectively solve the problem in the existing film laminating and cutting related technologies that, due to the certain toughness of the film itself, pockets will appear during transportation, and then the surface of the workpiece cannot be fully covered during the film laminating or cutting operation, which ultimately leads to a reduction in the quality of the finished product.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic tension adjustment mechanism for automatic cutting and laminating, comprising a frame, a lower operating table is fixedly installed in the middle of the bottom of the frame, an upper operating table is fixedly installed in the middle of the top of the frame, the frame comprises a material guide table, a support frame is fixedly installed at the bottom of the material guide table, a feeding assembly is fixedly installed on one side of the material guide table, and adjustment assemblies are respectively fixedly installed on both sides of the material guide table; the feeding assembly comprises a feeding roller, one end of the feeding roller is transmission-mounted with a limit motor; the feeding assembly comprises two side plates, both of which are provided with slide grooves, and a driven roller and an active roller are slidably installed on the opposite sides of the two side plates through the slide grooves, and the two ends of the driven roller and the active roller respectively pass through the side plates and are rotatably installed with a first connecting frame.

[0006] Preferably, the lower operating table includes a base frame, a first cylinder is fixedly installed in the middle of the inner bottom of the base frame, the cylinder body of the first cylinder is firmly connected to the base frame by bolts, and a placement plate is fixedly installed at the end of the piston rod at the top thereof. The placement plate is a flat plate structure, and a workpiece is movably placed on the placement plate.

[0007] When the above technical solution is adopted, the lower operating table controls the lifting and lowering of the placement plate through the first cylinder in the middle of the bottom inner side of the frame. This design can accurately adjust the height of the placement plate according to the thickness of different workpieces and the specific requirements of the film laminating process, thereby ensuring that the workpiece is in the best position during the film laminating process, which is conducive to improving the accuracy and fitting effect of the film laminating.

[0008] The placement plate is a flat structure and can flexibly place workpieces, which can adapt to the placement requirements of workpieces of different shapes and sizes. As long as the workpiece can be placed stably on the flat plate, the film sticking operation can be performed, which greatly improves the applicability of the equipment to different workpieces.

[0009] Preferably, the upper operating table includes a top frame, a second cylinder is fixedly installed in the middle of the top inner side of the top frame, the cylinder body of the second cylinder is firmly connected to the inner side of the top of the top frame by bolts, a film sticking frame is fixedly installed at the bottom of the second cylinder, and the connecting part of the film sticking frame is tightly fixed to the end of the piston rod of the second cylinder by a flange.

[0010] When the above technical solution is adopted, a second cylinder is installed in the middle of the top inner side of the top frame of the upper operating table, and the second cylinder can accurately control the lifting and lowering of the film sticking frame. When sticking the film, the film sticking frame can be accurately lowered to the appropriate position for the film sticking operation according to the process requirements such as the speed and strength of the film sticking, ensuring that the film sticking is tightly and evenly attached to the workpiece, thereby improving the quality of the film sticking.

[0011] The cylinder body of the second cylinder is installed on the inner side of the top frame by bolts, and the film frame and the end of the piston rod of the second cylinder are tightly fixed by a flange. This installation method ensures the stability of the entire structure. During the operation of the equipment, especially in frequent lifting actions, it can reliably transmit power, reduce shaking and deviation, and ensure the accuracy of film sticking and cutting.

[0012] Preferably, the film frame is located directly above the placement plate and has a smaller cross-sectional dimension than that of the placement plate. A cutting blade is provided at the outer bottom of the film frame, and the cutting blade is fixed to the film frame by bolts. The angle and shape of the cutting blade can be optimized according to the specific requirements of film cutting. The film frame as a whole is designed with a lightweight but sturdy aluminum alloy material.

[0013] When the above technical solution is adopted, the film laminating rack is located directly above the placement plate and its cross-sectional dimension is smaller than that of the placement plate. This layout enables the film laminating rack to accurately cover the workpiece when laminating and cutting the workpiece, avoiding laminating and cutting errors caused by excessive size or position deviation, thereby ensuring the accuracy and efficiency of the operation.

[0014] A cutting blade is provided at the bottom outside the film rack, which can optimize the design angle and shape according to the specific requirements of film cutting, and is fixed to the film rack by bolts. This enables the equipment to adapt to the needs of different types of film materials and different cutting shapes, improves the versatility and flexibility of the equipment, and meets diversified production needs.

[0015] The film sticking frame is designed with lightweight but strong aluminum alloy material, which not only ensures the strength of the film sticking frame during operation and can withstand the force generated by the cutting disc and other external forces during the film sticking process, but also because of its lightweight characteristics, it reduces the overall weight of the equipment and the power required for the second cylinder to lift and lower, which also facilitates the installation, commissioning and maintenance of the equipment.

[0016] Preferably, universal wheels are fixedly installed on the bottom of the support frame, and the mounting portion of each universal wheel is connected to the bottom of the support frame by bolts. Braking devices are provided on the four universal wheels, and the braking devices are composed of brake blocks, brake rods, springs and other components. The brake blocks are connected to the hub of the universal wheel through hinges, and the brake rods can be manually operated.

[0017] When the above technical solution is adopted, the universal wheels installed at the bottom of the support frame make the entire equipment have good mobility. The operator can easily move the equipment to different work locations, which is convenient for use in different production areas or workshops, thereby improving the flexibility of equipment use.

[0018] The brake device installed on each universal wheel is composed of brake blocks, brake rods, springs and other components. The brake blocks are connected to the universal wheel hub through hinges, and the brake rods can be manually operated. When the equipment is moved to a suitable position, the brake blocks are contacted with the wheel hub by operating the brake rods to fix the equipment, ensuring that the equipment will not move during the film application and cutting process, thus ensuring the stability and accuracy of the operation.

[0019] Preferably, the adjustment component includes a drive motor, which is fixedly connected to the side plate, a lead screw is transmission-mounted at one end of the drive motor, a first positioning block is threadedly mounted at one end of the lead screw, and a second positioning block is rotatably mounted at the other end of the lead screw, and the adjustment component is fixedly connected to the side plate via the first positioning block and the second positioning block.

[0020] When the above technical solution is adopted, the adjustment component drives the lead screw to rotate through the driving motor, and the first positioning block and the second positioning block threadedly mounted on the lead screw are fixedly connected to the side plate. This structural design enables the position of the connecting piece mounted thereon to be accurately controlled when the lead screw rotates, thereby realizing accurate adjustment of the positions of the driven roller and the active roller. This effectively controls the conveying tension of the film, avoids the occurrence of film bagging, and improves the quality of the film.

[0021] The driving motor is fixedly connected to the side panel, and the adjusting assembly as a whole is connected to the side panel through the first positioning block and the second positioning block. This design makes the entire adjusting assembly compact and occupies a small space. While ensuring the adjustment function, it does not affect the layout and operation of other components of the equipment, thereby improving the overall space utilization of the equipment.

[0022] Preferably, a connecting piece is threadedly mounted on the lead screw on one side opposite to the first positioning block and the second positioning block, and the connecting piece is embedded and mounted on the first connecting frame.

[0023] When the above technical solution is adopted, the connecting part is embedded in the first connecting frame and is threadedly connected to the lead screw. This connection method not only ensures the tight connection between the connecting part and the first connecting frame, and can stably transmit the adjustment force of the adjustment component, but also realizes the precise adjustment of the position of the connecting part on the lead screw through the threaded connection, thereby ensuring the accuracy and stability of the position adjustment of the driven roller and the active roller, which is conducive to the precise control of the film conveying tension.

[0024] Preferably, the two ends of the feed roller are respectively fixedly installed with a first plug-in frame, the first plug-in frame is coupled to the second plug-in frame, the second plug-in frame is rotatably installed with a second connecting frame at the end away from the feed roller, the second connecting frame is fixedly connected to the side plate, and the front end of the second plug-in frame on the front of the frame is installed with a limit motor transmission.

[0025] When the above technical solution is adopted, the two ends of the feed roller are rotatably connected to the second connecting frame through the coupling connection mode of the first plug-in frame and the second plug-in frame, and the second connecting frame is fixed to the side plate. This connection mode makes the installation and removal of the feed roller more convenient. When the feed roller is worn or needs to be replaced with a feed roller of different specifications, the operator can easily operate it, which improves the efficiency of equipment maintenance and component replacement.

[0026] The front end of the second plug-in rack on the front of the frame is installed with the limit motor. This layout enables the limit motor to stably transmit power to the feed roller, ensuring that the feed roller rotates at the set speed and direction, providing stable power support for the film conveying, and ensuring the continuity and stability of the film conveying process.

[0027] Preferably, the limit motor is fixedly connected to the support frame via a mounting plate, the mounting plate is rectangular in shape, the mounting plate is fixedly connected to the support frame via bolts, and the limit motor adopts a stepper motor structure design.

[0028] When the above technical solution is adopted, the limit motor is fixedly connected to the support frame through a rectangular mounting plate and is fixed by bolts. This installation method ensures the stability of the limit motor during the operation of the equipment, can reliably withstand the vibration and torque generated during the operation of the motor, avoids unstable power transmission or equipment failure caused by loose motor, and improves the reliability of equipment operation.

[0029] The limit motor adopts a stepper motor structure design. The stepper motor can accurately control the rotation angle and speed of the feed roller to meet the requirements of feeding accuracy during the film laminating process, thereby improving the quality and production efficiency of the film laminating.

[0030] Preferably, the driven roller and the active roller are both designed with rubber roller material, the driven roller and the active roller are in contact on opposite sides but not fixedly connected, the front end of the active roller passes through the first connecting frame and is driven by a conveying motor installed thereon, and the conveying motor is fixedly connected to the first connecting frame.

[0031] When adopting the above technical solution, both the driven roller and the active roller are designed with rubber roller material. The rubber material has good elasticity and friction. During the film conveying process, it can fully contact with the film material and provide sufficient friction to ensure that the film can be conveyed stably and smoothly, avoiding the film slipping caused by insufficient friction, thereby ensuring the accuracy and stability of film conveying.

[0032] The driven roller and the active roller are in contact on opposite sides but not fixedly connected. This design enables them to automatically adjust their relative positions according to factors such as the tension and thickness of the film when conveying the film, better adapt to the characteristics of different film materials, further improve the ability to adjust the film conveying tension, and effectively prevent film pockets.

[0033] The front end of the active roller passes through the first connecting frame and is connected to the conveying motor, and the conveying motor is fixed to the first connecting frame. This structural design ensures that the power can be effectively transmitted from the conveying motor to the active roller, thereby driving the driven roller to rotate and realizing stable conveying of the film. At the same time, the fixing method of the conveying motor and the first connecting frame also ensures the stability of the entire power transmission system. During the operation of the equipment, the power can be reliably transmitted to ensure the continuity and stability of the film conveying.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The driving motor in the adjustment assembly of the present invention drives the lead screw to rotate, drives the connector threadedly connected to the lead screw to move, and then drives the first connecting frame to achieve precise adjustment of the positions of the driven roller and the active roller. When the film tends to be bagged, the film can be tightened by adjusting the positions of the driven roller and the active roller relative to the feed roller, thereby effectively controlling the conveying tension of the film, avoiding the occurrence of film bagging, and ensuring that the film remains flat during the conveying process. At the same time, the driven roller and the active roller are both made of rubber rollers, which have good elasticity and friction, can fully contact with the film, provide sufficient friction, ensure stable and smooth conveying of the film, and avoid slipping. Moreover, they are in contact with one side but not fixedly connected, and can automatically adjust the relative position according to the tension and thickness of the film, better adapt to the characteristics of different film materials, further improve the ability to adjust the conveying tension of the film, and prevent the film from bagging. A limit motor is installed at one end of the feed roller. When the tension needs to be increased, the limit motor is started to limit the rotation of the feed roller, while the driven roller and the active roller continue to pull the film to tighten the film and increase the tension. When the set tension is reached, the feed motor stops working, thereby accurately controlling the film tension and avoiding the problem of bagging caused by insufficient tension.

[0036] The lifting and lowering of the placement plate is controlled by the first cylinder in the middle of the bottom inner side of the bottom frame. The height of the placement plate can be accurately adjusted according to the thickness of different workpieces and the requirements of the film laminating process, ensuring that the workpiece is in the best position during the film laminating process, improving the accuracy of film laminating and the laminating effect, which is conducive to the full coverage of the workpiece surface. The second cylinder in the middle of the top inner side of the top frame can accurately control the lifting and lowering of the film laminating frame. When laminating, the film laminating frame can be accurately lowered to the appropriate position for film laminating according to the process requirements to ensure that the film is tightly and flatly attached to the workpiece. The film laminating frame is located directly above the placement plate and its cross-sectional size is smaller than that of the placement plate, ensuring that the film laminating and cutting operations are accurate and avoid mistakes. At the same time, the outer bottom of the film laminating frame is equipped with a cutting blade that can optimize the design angle and shape, which can adapt to different film laminating materials and cutting shape requirements, meet diversified production, and further ensure the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0038] Figure 2 It is a left side structural schematic diagram of the present invention;

[0039] Figure 3 It is a schematic diagram of the frame structure of the present invention;

[0040] Figure 4 It is a structural schematic diagram of the material guide platform of the present invention;

[0041] Figure 5 It is a schematic diagram of the structure of the regulating component of the present invention;

[0042] Figure 6 It is a schematic diagram of the structure of the feeding assembly of the present invention;

[0043] Figure 7 It is a schematic diagram of the structure of the feed roller of the present invention.

[0044] In the figure: 1. frame; 11. material guide table; 111. side plate; 1111. slide; 112. driven roller; 113. active roller; 114. first connecting frame; 115. second connecting frame; 12. conveying motor; 13. adjustment component; 131. drive motor; 132. first positioning block; 133. lead screw; 134. connecting piece; 135. second positioning block; 14. feeding component; 141. feeding roller; 1411. first plug-in frame; 142. limit motor; 1421. mounting plate; 1422. second plug-in frame; 15. support frame; 151. universal wheel; 2. lower operating table; 21. bottom frame; 22. first cylinder; 23. placement plate; 3. upper operating table; 31. top frame; 32. second cylinder; 33. film sticking frame. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Embodiment 1

[0047] like Figures 1 to 7 As shown, an embodiment of the present invention is: an automatic tension adjustment mechanism for automatic cutting and laminating, comprising a frame 1, a lower operating table 2 is fixedly installed in the middle of the bottom of the frame 1, an upper operating table 3 is fixedly installed in the middle of the top of the frame 1, the frame 1 comprises a material guide table 11, a support frame 15 is fixedly installed at the bottom of the material guide table 11, a feeding assembly 14 is fixedly installed on one side of the material guide table 11, and adjustment assemblies 13 are respectively fixedly installed on both sides of the material guide table 11; the feeding assembly 14 comprises a feeding roller 141, and a limit motor 142 is transmission-installed at one end of the feeding roller 141; the feeding assembly 14 comprises two side plates 111, and a slide groove 1111 is opened on the two side plates 111, and a driven roller 112 and an active roller 113 are slidably installed on the opposite side of the two side plates 111 through the slide groove 1111, and the two ends of the driven roller 112 and the active roller 113 respectively pass through the side plate 111 and are rotatably installed with a first connecting frame 114.

[0048] Specifically, the driving motor 131 in the adjustment component 13 drives the lead screw 133 to rotate, drives the connecting piece 134 threadedly connected to the lead screw 133 to move, and then drives the first connecting frame 114 to achieve precise adjustment of the positions of the driven roller 112 and the active roller 113. When the film tends to be sacked, the film can be tightened by adjusting the positions of the driven roller 112 and the active roller 113 relative to the feeding roller 141, thereby effectively controlling the conveying tension of the film, avoiding the occurrence of film sacks, and ensuring that the film remains flat during the conveying process. At the same time, the driven roller 112 and the active roller 113 are both made of rubber rollers, which have good elasticity and friction, can fully contact with the film, provide sufficient friction, ensure stable and smooth conveying of the film, and avoid slipping. And they are in contact with one side but not fixedly connected, and can automatically adjust the relative position according to the tension and thickness of the film, better adapt to the characteristics of different film materials, further improve the ability to adjust the conveying tension of the film, and prevent the film from sacks. A limit motor 142 is installed at one end of the feed roller 141. When the tension needs to be increased, the limit motor 142 is started to limit the rotation of the feed roller 141, and the driven roller 112 and the active roller 113 continue to pull the film to tighten the film and increase the tension. After the set tension is reached, the feed motor 12 stops working, thereby accurately controlling the film tension and avoiding the problem of bagging caused by insufficient tension.

[0049] The lifting and lowering of the placement plate 23 is controlled by the first cylinder 22 in the middle of the bottom inner side of the bottom frame 21. The height of the placement plate 23 can be accurately adjusted according to the thickness of different workpieces and the requirements of the film laminating process, ensuring that the workpiece is in the best position during the film laminating process, improving the accuracy of film laminating and the laminating effect, and facilitating the surface of the workpiece to be fully covered. The second cylinder 32 in the middle of the top inner side of the top frame 31 can accurately control the lifting and lowering action of the film laminating frame 33. When laminating, the film laminating frame 33 can be accurately lowered to a suitable position for laminating operation according to the process requirements to ensure that the film is tightly and flatly attached to the workpiece. The film laminating frame 33 is located directly above the placement plate 23 and its cross-sectional size is smaller than that of the placement plate 23, ensuring that the film laminating and cutting operations are accurate and avoiding mistakes. At the same time, a cutting blade with optimized design angles and shapes is provided at the bottom outer side of the film laminating frame 33, which can adapt to different film laminating materials and cutting shape requirements, meet diversified production, and further ensure the quality of the finished product.

[0050] Embodiment 2

[0051] In order to achieve precise adjustment of film laminating and cutting operations and ensure efficient and stable operation of the equipment, such as Figure 1 and Figure 2 As shown, in this embodiment, the lower operating table 2 includes a base frame 21, and a first cylinder 22 is fixedly installed in the middle of the inner bottom of the base frame 21. The cylinder body of the first cylinder 22 is firmly connected to the base frame 21 by bolts, and a placement plate 23 is fixedly installed at the end of the piston rod at the top. The placement plate 23 is a flat plate structure, and a workpiece is movably placed on the placement plate 23.

[0052] Specifically, the lower operating table 2 controls the lifting and lowering of the placement plate 23 through the first cylinder 22 in the middle of the bottom inner side of the base frame 21. This design can accurately adjust the height of the placement plate 23 according to the thickness of different workpieces and the specific requirements of the film laminating process, thereby ensuring that the workpiece is in the best position during the film laminating process, which is beneficial to improving the accuracy and fitting effect of the film laminating.

[0053] The placement plate 23 is a flat plate structure and can flexibly place workpieces, and can meet the placement requirements of workpieces of different shapes and sizes. As long as the workpiece can be stably placed on the flat plate, the film sticking operation can be performed, which greatly improves the applicability of the equipment to different workpieces.

[0054] Furthermore, the upper operating table 3 includes a top frame 31, and a second cylinder 32 is fixedly installed in the middle of the top inner side of the top frame 31. The cylinder body of the second cylinder 32 is firmly connected to the top inner side of the top frame 31 by bolt installation. A film sticking frame 33 is fixedly installed at the bottom of the second cylinder 32, and the connecting part of the film sticking frame 33 is tightly fixed to the piston rod end of the second cylinder 32 by a flange.

[0055] Specifically, a second cylinder 32 is installed in the middle of the top inner side of the top frame 31 of the upper operating table 3, and the second cylinder 32 can accurately control the lifting and lowering of the film sticking frame 33. When sticking the film, the film sticking frame 33 can be accurately lowered to a suitable position for the film sticking operation according to the process requirements such as the speed and strength of the film sticking, so as to ensure that the film sticking is tightly and evenly stuck on the workpiece, thereby improving the quality of the film sticking.

[0056] The cylinder body of the second cylinder 32 is installed on the inner side of the top of the top frame 31 by bolts, and the film frame 33 is tightly fixed to the end of the piston rod of the second cylinder 32 by a flange. This installation method ensures the stability of the entire structure. During the operation of the equipment, especially in frequent lifting actions, it can reliably transmit power, reduce shaking and deviation, and ensure the accuracy of film sticking and cutting.

[0057] Furthermore, the film frame 33 is located directly above the placement plate 23 and has a smaller cross-sectional dimension than the placement plate 23. A cutting blade is provided at the outer bottom of the film frame 33, and the cutting blade is fixed to the film frame 33 by bolts. The angle and shape of the cutting blade can be optimized according to the specific requirements of film cutting. The film frame 33 is designed as a whole with a lightweight but sturdy aluminum alloy material.

[0058] Specifically, the film sticking rack 33 is located directly above the placement plate 23 and has a smaller cross-sectional dimension than the placement plate 23. This layout enables the film sticking rack 33 to accurately cover the workpiece when performing film sticking and cutting operations on the workpiece, thereby avoiding film sticking and cutting errors caused by excessive size or position deviation, and ensuring the accuracy and efficiency of the operation.

[0059] A cutting blade is provided at the outer bottom of the film rack 33, which can optimize the design angle and shape according to the specific requirements of film cutting, and is fixed to the film rack 33 by bolts. This enables the equipment to adapt to the needs of different types of film materials and different cutting shapes, improves the versatility and flexibility of the equipment, and meets diversified production needs.

[0060] The film sticking frame 33 is designed with a lightweight but strong aluminum alloy material, which not only ensures the strength of the film sticking frame 33 during operation and can withstand the force generated by the cutting blade and other external forces during the film sticking process, but also because of its lightweight characteristics, it reduces the overall weight of the equipment and reduces the power required for the second cylinder 32 to lift and lower, and also facilitates the installation, commissioning and maintenance of the equipment.

[0061] Embodiment 3

[0062] In order to further improve the overall performance of the equipment, optimize the film lamination and cutting workflow, and ensure the efficient operation of the equipment in different scenarios, such as Figures 3 to 5As shown, in this embodiment, universal wheels 151 are fixedly installed at the bottom of the support frame 15, and the installation position of each universal wheel 151 is connected to the bottom of the support frame 15 by bolts. Braking devices are provided on the four universal wheels 151, and the braking devices are composed of brake blocks, brake rods, springs and other components. The brake blocks are connected to the hubs of the universal wheels 151 by hinges, and the brake rods can be manually operated.

[0063] Specifically, the universal wheels 151 installed at the bottom of the support frame 15 make the entire device have good mobility, and the operator can easily move the device to different work locations, which is convenient for use in different production areas or workshops, thereby improving the flexibility of the equipment.

[0064] The brake device provided on each universal wheel 151 is composed of a brake block, a brake rod, a spring and other components. The brake block is connected to the hub of the universal wheel 151 through a hinge, and the brake rod can be manually operated. When the device is moved to a suitable position, the brake block is brought into contact with the hub by operating the brake rod to fix the device, ensuring that the device will not move during the film application and cutting process, thereby ensuring the stability and accuracy of the operation.

[0065] Furthermore, the adjustment component 13 includes a drive motor 131, which is fixedly connected to the side plate 111. A lead screw 133 is transmission-mounted at one end of the drive motor 131, a first positioning block 132 is threadedly mounted at one end of the lead screw 133, and a second positioning block 135 is rotatably mounted at the other end of the lead screw 133. The adjustment component 13 is fixedly connected to the side plate 111 via the first positioning block 132 and the second positioning block 135.

[0066] Specifically, the adjusting assembly 13 drives the lead screw 133 to rotate through the driving motor 131, and the first positioning block 132 and the second positioning block 135 threadedly mounted on the lead screw 133 are fixedly connected to the side plate 111. This structural design enables the lead screw 133 to accurately control the position of the connecting member 134 mounted thereon when rotating, thereby realizing accurate adjustment of the positions of the driven roller 112 and the active roller 113. This effectively controls the conveying tension of the film, avoids the occurrence of film bagging, and improves the quality of film.

[0067] The driving motor 131 is fixedly connected to the side panel 111, and the adjusting assembly 13 as a whole is connected to the side panel 111 through the first positioning block 132 and the second positioning block 135. This design makes the entire adjusting assembly 13 compact and occupies a small space. While ensuring the adjustment function, it does not affect the layout and operation of other components of the equipment, thereby improving the overall space utilization of the equipment.

[0068] Furthermore, a connecting piece 134 is threadedly mounted on the lead screw 133 on one side opposite to the first positioning block 132 and the second positioning block 135 , and the connecting piece 134 is embedded and mounted on the first connecting frame 114 .

[0069] Specifically, the connecting member 134 is embedded in the first connecting frame 114 and is threadedly connected to the lead screw 133. This connection method not only ensures the tight connection between the connecting member 134 and the first connecting frame 114, and can stably transmit the adjustment force of the adjustment component 13, but also realizes the precise adjustment of the position of the connecting member 134 on the lead screw 133 through the threaded connection, thereby ensuring the accuracy and stability of the position adjustment of the driven roller 112 and the active roller 113, which is conducive to realizing the precise control of the film conveying tension.

[0070] Embodiment 4

[0071] In order to achieve the goal of comprehensively improving the performance of automatic cutting and laminating equipment and ensuring the quality and high efficiency of film laminating delivery, such as Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in this embodiment, the first plug-in frame 1411 is fixedly installed at both ends of the feed roller 141, the first plug-in frame 1411 is coupled to the second plug-in frame 1422, and the second connecting frame 115 is rotatably installed at one end of the second plug-in frame 1422 away from the feed roller 141, the second connecting frame 115 is fixedly connected to the side panel 111, and the front end of the second plug-in frame 1422 on the front side of the frame 1 is transmission-installed with the limit motor 142.

[0072] Specifically, both ends of the feed roller 141 are rotatably connected to the second connection frame 115 by coupling the first plug-in frame 1411 and the second plug-in frame 1422, and the second connection frame 115 is fixed to the side plate 111. This connection method makes it easier to install and remove the feed roller 141. When the feed roller 141 is worn or needs to be replaced with a feed roller 141 of a different specification, the operator can easily operate, thereby improving the efficiency of equipment maintenance and component replacement.

[0073] The front end of the second plug-in frame 1422 on the front side of the frame 1 is installed in a transmission manner with the limit motor 142. This layout enables the limit motor 142 to stably transmit power to the feed roller 141, ensuring that the feed roller 141 rotates at a set speed and direction, providing stable power support for the film conveying, and ensuring the continuity and stability of the film conveying process.

[0074] Furthermore, the limit motor 142 is fixedly connected to the support frame 15 via a mounting plate 1421 . The mounting plate 1421 is rectangular in shape. The mounting plate 1421 is fixedly connected to the support frame 15 via bolts. The limit motor 142 adopts a stepping motor structure design.

[0075] Specifically, the limit motor 142 is fixedly connected to the support frame 15 through a rectangular mounting plate 1421 and is fixed by bolts. This mounting method ensures the stability of the limit motor 142 during the operation of the equipment, can reliably withstand the vibration and torque generated when the motor is running, avoids unstable power transmission or equipment failure due to loose motor, and improves the reliability of equipment operation.

[0076] The limit motor 142 adopts a stepper motor structure design. The stepper motor can accurately control the rotation angle and speed of the feed roller 141 to meet the requirements of feeding accuracy during the film laminating process, thereby improving the quality and production efficiency of the film laminating.

[0077] Furthermore, the driven roller 112 and the active roller 113 are both designed with rubber roller material. The driven roller 112 and the active roller 113 are in contact on opposite sides but are not fixedly connected. The front end of the active roller 113 passes through the first connecting frame 114 and is driven and installed with a conveying motor 12. The conveying motor 12 is fixedly connected to the first connecting frame 114.

[0078] Specifically, the driven roller 112 and the active roller 113 are both designed with rubber roller material. The rubber material has good elasticity and friction. During the film conveying process, it can fully contact the film material and provide sufficient friction to ensure that the film can be conveyed stably and smoothly, avoiding the film slipping caused by insufficient friction, thereby ensuring the accuracy and stability of the film conveying.

[0079] The driven roller 112 and the active roller 113 are in contact on opposite sides but not fixedly connected. This design enables them to automatically adjust their relative positions according to factors such as the tension and thickness of the film when conveying the film, better adapt to the characteristics of different film materials, further improve the ability to adjust the film conveying tension, and effectively prevent film pockets.

[0080] The front end of the active roller 113 passes through the first connecting frame 114 and is connected to the conveying motor 12, and the conveying motor 12 is fixed to the first connecting frame 114. This structural design ensures that the power can be effectively transmitted from the conveying motor 12 to the active roller 113, thereby driving the driven roller 112 to rotate, thereby achieving stable conveying of the film. At the same time, the fixing method of the conveying motor 12 and the first connecting frame 114 also ensures the stability of the entire power transmission system. During the operation of the equipment, the power can be reliably transmitted to ensure the continuity and stability of the film conveying.

[0081] When the present invention is used, the workpiece to be pasted with film is stably placed on the placement plate 23 of the lower operating table 2, and the first cylinder 22 does not need to be started at this time. A section of film material of a suitable length is manually drawn out from the feeding roller 141, so that the drawn-out section of film is located between the driven roller 112 and the active roller 113, and then the conveying motor 12 in the feeding assembly 14 is started to rotate the active roller 113, driving the driven roller 112 to rotate together, thereby preliminarily clamping the section of film to ensure that the film is stably placed between the two.

[0082] The driving motor 131 in the adjusting assembly 13 is started, and the driving motor 131 drives the lead screw 133 to rotate, so that the connecting member 134 moves, and then drives the first connecting frame 114, so that the driven roller 112 and the active roller 113 are further away from the feeding roller 141, and the friction between the driven roller 112 and the active roller 113 is used to pull the film out of the feeding roller 141 by a certain length. The conveying motor 12 is operated again. Since the driven roller 112 and the active roller 113 clamp the film and contact the opposite side, the active roller 113 drives the driven roller 112 to rotate together when it rotates, and the film material is continuously drawn out and conveyed from the feeding roller 141. When the tension needs to be increased, the limit motor 142 is started in time to limit the rotation of the feeding roller 141. Since the driven roller 112 and the active roller 113 continue to pull the film, the film will be tightened at this time, and the tension increases. When the set tension is reached, the conveying motor 12 stops working. During this process, the driving motor 131 in the adjustment component 13 can also be used to fine-tune the position of the feed roller 141 on the opposite side of the driven roller 112 and the active roller 113 to further accurately adjust the tension of the film to ensure that the film remains flat during transportation without bagging.

[0083] When the film material is delivered to the appropriate position and basically covers the workpiece but has not been completely attached, the first cylinder 22 in the lower operating table 2 is started, the piston rod of the first cylinder 22 is extended, and the placement plate 23 is raised. At the same time, the second cylinder 32 in the upper operating table 3 is started, and the piston rod of the second cylinder 32 is extended, driving the film rack 33 to descend, so that the cutting blade on the film rack 33 and the film material move downward together until the film is completely attached to the surface of the workpiece placed on the placement plate 23. Continue to lower the piston rod of the second cylinder 32, use the cutting blade at the bottom of the outer side of the film rack 33 to cut the film, cut off the excess film attached to the workpiece, and complete the film and cutting operations. After completing the film and cutting operations, control the second cylinder 32 to retract the piston rod, lift and reset the film rack 33, and control the first cylinder 22 to retract the piston rod and lower the placement plate 23. Turn off the limit motor 142 and the conveying motor 12 in the feeding assembly 14 to stop feeding. If you need to continue the next film application, repeat the above steps; if the work is completed, you can turn off the power of the equipment and clean and maintain the equipment.

Claims

1. An automatic tension adjustment mechanism for automatic cutting and laminating, comprising a frame (1), a lower operating table (2) fixedly installed in the middle of the bottom of the frame (1), and an upper operating table (3) fixedly installed in the middle of the top of the frame (1), characterized in that: The frame (1) comprises a material guide platform (11), a support frame (15) is fixedly mounted on the bottom of the material guide platform (11), a feeding assembly (14) is fixedly mounted on one side of the material guide platform (11), and adjustment assemblies (13) are respectively fixedly mounted on both sides of the material guide platform (11); The feeding assembly (14) comprises a feeding roller (141), and a limit motor (142) is installed on one end of the feeding roller (141); The feeding assembly (14) comprises two side plates (111), each of the two side plates (111) being provided with a slide groove (1111), and a driven roller (112) and a driving roller (113) being slidably mounted on opposite sides of the two side plates (111) through the slide groove (1111), and two ends of the driven roller (112) and the driving roller (113) respectively pass through the side plates (111) and are rotatably mounted with a first connecting frame (114).

2. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 1, characterized in that: The lower operating table (2) comprises a base frame (21), a first cylinder (22) is fixedly mounted in the middle of the inner bottom of the base frame (21), a cylinder body of the first cylinder (22) is firmly connected to the base frame (21) by bolts, a placement plate (23) is fixedly mounted at the end of a piston rod at the top, the placement plate (23) is a flat plate structure, and a workpiece is movably placed on the placement plate (23).

3. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 1, characterized in that: The upper operating table (3) comprises a top frame (31), a second cylinder (32) is fixedly installed in the middle of the top of the inner side of the top frame (31), the cylinder body of the second cylinder (32) is firmly connected to the inner side of the top of the top frame (31) by bolt installation, a film sticking frame (33) is fixedly installed at the bottom of the second cylinder (32), and the connecting part of the film sticking frame (33) is tightly fixed to the end of the piston rod of the second cylinder (32) by a flange.

4. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 3, characterized in that: The film sticking frame (33) is located directly above the placement plate (23) and has a cross-sectional dimension smaller than the cross-sectional dimension of the placement plate (23). A cutting blade is provided at the outer bottom of the film sticking frame (33), and the cutting blade is fixed to the film sticking frame (33) by bolts. The angle and shape of the cutting blade can be optimized according to the specific requirements of film cutting. The film sticking frame (33) is designed as a whole using a lightweight but sturdy aluminum alloy material.

5. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 1, characterized in that: Universal wheels (151) are fixedly mounted at the bottom of the support frame (15), and the mounting position of each universal wheel (151) is connected to the bottom of the support frame (15) by bolts. A brake device is arranged on each of the four universal wheels (151), and the brake device is composed of a brake block, a brake rod, a spring and other components. The brake block is connected to the wheel hub of the universal wheel (151) by a hinge, and the brake rod can be manually operated.

6. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 1, characterized in that: The adjustment component (13) comprises a driving motor (131), the driving motor (131) is fixedly connected to the side plate (111), a lead screw (133) is transmission-mounted at one end of the driving motor (131), a first positioning block (132) is threadedly mounted at one end of the lead screw (133), and a second positioning block (135) is rotatably mounted at the other end of the lead screw (133), and the adjustment component (13) is fixedly connected to the side plate (111) via the first positioning block (132) and the second positioning block (135).

7. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 6, characterized in that: A connecting piece (134) is threadedly mounted on the lead screw (133) on the opposite side of the first positioning block (132) and the second positioning block (135), and the connecting piece (134) is embedded and mounted on the first connecting frame (114).

8. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 1, characterized in that: The two ends of the feeding roller (141) are respectively fixedly mounted with a first plug-in frame (1411), the first plug-in frame (1411) is coupled with a second plug-in frame (1422), the second plug-in frame (1422) is rotatably mounted with a second connecting frame (115) at one end away from the feeding roller (141), the second connecting frame (115) is fixedly connected to the side plate (111), and the front end of the second plug-in frame (1422) on the front side of the frame (1) is transmission-mounted with a limit motor (142).

9. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 8, characterized in that: The limit motor (142) is fixedly connected to the support frame (15) via a mounting plate (1421); the mounting plate (1421) is rectangular in shape; the mounting plate (1421) is fixedly connected to the support frame (15) via bolts; and the limit motor (142) adopts a stepping motor structure design.

10. The automatic tension adjustment mechanism for automatic cutting and laminating according to claim 1, characterized in that: The driven roller (112) and the driving roller (113) are both designed with rubber roller material; opposite sides of the driven roller (112) and the driving roller (113) are in contact but not fixedly connected; the front end of the driving roller (113) passes through the first connecting frame (114) and is driven by a conveying motor (12); the conveying motor (12) is fixedly connected to the first connecting frame (114).

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