A glue splicing device for cotton packaging film

Abstract

The invention relates to a gluing and splicing device for cotton packaging film applied in the field of gluing technology. The gluing head is in close contact with the packaging film and moves back and forth to realize automatic flattening and gluing of the packaging film. The piezoelectric group and the coating hole are used to accurately control the glue extrusion, thereby ensuring the adjustability of the glue coating amount and the uniformity of the coating effect. The packaging film is subjected to negative pressure adsorption and active stretching through the adsorption hole and the regulating cylinder, thereby ensuring the flatness and tension of the packaging film during the gluing process. The flatness of the glue coating is further improved by the cooperation of the pressing block and the gluing head. The gluing head is driven to move and the negative pressure is generated through the dual action of the motor, thereby simplifying the transmission structure, and improving the integration and working efficiency of the device. The invention overcomes the shortcomings of the prior art in terms of gluing effect, adaptability and maintainability, etc., and can improve the efficiency and quality of cotton packaging and reduce labor intensity and cost.

Description

Technical Field

[0001] The invention relates to a gluing and splicing device for cotton packaging film, in particular to a gluing and splicing device for cotton packaging film applied in the field of gluing technology. Background Art

[0002] In the cotton baling process, baling film is needed to wrap and seal the cotton. In order to improve the baling efficiency and baling quality, the baling film usually needs to be spliced. The traditional manual splicing method has low efficiency and unstable quality, and can no longer meet the needs of modern cotton baling. Therefore, it is necessary to develop an automated, efficient, and high-quality baling film gluing and splicing device.

[0003] Chinese invention patent CN112078144B discloses a cotton packaging film composite splicing device. The device can realize continuous operation and complete the two-layer film lamination, slitting, splicing and winding operations at one time. However, the device has not been optimized in terms of gluing, and the gluing quality and efficiency need to be improved. In addition, the device has a complex structure, many parts, and is not convenient for maintenance and debugging.

[0004] Chinese invention patent CN111923428B discloses a cotton packing film splicing mechanism. The mechanism uses a composite film adsorption device and a tape bonding device to achieve automatic cutting and splicing of the packing film. However, the mechanism is not specially designed for gluing, and the gluing effect is not ideal. Moreover, the mechanism does not accurately control the tension of the packing film, which easily leads to problems such as wrinkling and falling of the packing film.

[0005] In summary, the existing technology still has problems such as low gluing quality, low gluing efficiency, imprecise tension control, and inconvenient maintenance and debugging in the gluing and splicing of packaging film, which makes it difficult to meet the high standards required for modern cotton packaging. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide a cotton packaging film gluing and splicing device with high gluing quality, high gluing efficiency, strong adaptability and easy maintenance.

[0007] In order to solve the above problems, the present invention provides a gluing and splicing device for cotton packaging film, including a gluing head, a pressure chamber is provided in the gluing head, a driving block is fixedly connected to the center of the pressure chamber, a piezoelectric group is fixedly connected to the top and bottom of the driving block, a plurality of coating holes are provided at the top and bottom of the gluing head, a symmetrically arranged adsorption chamber is provided in the gluing head between its outer wall and the pressure chamber, a plurality of adsorption holes are provided at corresponding positions of the gluing head and the adsorption chamber, a coating chamber is formed between the piezoelectric group and the pressure chamber, the coating chamber is filled with glue, and the coating chamber is connected to an external glue supply device, a driving screw is connected to the driving block through an inner thread, symmetrically arranged adaptive adjustment rods are rotatably connected at both ends of the driving screw, friction force exists between the driving screw and the adaptive adjustment rod, and the friction force is adjustable, two adjusting cylinders are fixedly connected between the two ends of the symmetrically arranged adaptive adjustment rod away from the driving screw, the adjusting cylinder is a hollow structure, and a plurality of through holes connected to the hollow part are provided on the adjusting cylinder, the hollow part of the adjusting cylinder is connected to the adsorption chamber through a hose, and the piezoelectric group is electrically connected to a controller.

[0008] In the above-mentioned gluing and splicing device for cotton packaging film, the gluing efficiency and quality are improved through reasonable structural design and automatic control. The key components adopt modular design, which is easy to maintain and replace. The glue amount is adjustable to adapt to different packaging films. The motor has dual functions and is energy-saving and efficient. It can improve the technical level of cotton packaging and has good industrialization prospects.

[0009] As a further improvement of the present application, one end of the driving screw rod passes through the adaptive adjustment rod, and the passing part is fixedly connected with a first magnetic group, a second magnetic group is provided outside the first magnetic group, and the outer end of the glue coating head is slidably connected with the adjustment cylinder.

[0010] As a further improvement of the present application, one end of the second magnetic group away from the first magnetic group is fixedly connected to the rotor, the outer end of the rotor is rotatably connected to the stator, and the stator is fixedly connected to the adaptive adjustment rod.

[0011] As a further improvement of the present application, the rotating shaft of the rotor at one end away from the second magnetic group passes through the stator, and the penetrating part is fixedly connected to a centrifugal impeller. A winding coil is provided in the stator, and the winding coil is electrically connected to the controller.

[0012] As another improvement of the present application, an impeller casing fixedly connected to the stator is provided on the outer side of the centrifugal impeller, and a plurality of exhaust holes are provided at positions corresponding to the outer ends of the impeller casing and the centrifugal impeller blades.

[0013] As another improved supplement of the present application, the impeller housing is connected to the hollow part of the regulating cylinder through a pipeline at a position corresponding to the centrifugal impeller shaft at one end away from the centrifugal impeller.

[0014] As another improved supplement of the present application, one end of the packaging film away from the glue coating head is arranged in contact with the pressing block, and both ends of the pressing block are rotatably connected to the bracket.

[0015] As another improvement of the present application, one end of the bracket is rotatably connected to the adaptive adjustment rod, and the other end is slidably connected to the base through a dovetail tenon, the stator is fixedly connected to the base, both ends of the glue coating head are fixedly connected to end covers, and the drive screw passes through the two end covers.

[0016] A gluing and splicing device for cotton packaging film comprises the following steps:

[0017] S1. Before use, adjust the glue applicator to the end close to the impeller housing;

[0018] S2. During use, the two ends of the packaging film to be coated with glue are respectively contacted with the corresponding adjustment cylinders, and then the motor is started to make the rotor rotate rapidly. When the rotor rotates, it drives the centrifugal impeller and the second magnetic group to rotate, and the second magnetic group then drives the first magnetic group and the driving screw to rotate. At this time, the gluing head, the driving block and the piezoelectric group move along the driving screw to the end away from the impeller housing under the action of the driving screw. In this process, the centrifugal impeller generates negative pressure in the impeller housing, and the negative pressure then adsorbs the packaging film through the through holes on the adjustment cylinder. In this process, multiple adsorption holes make the packaging film contact with the two ends of the gluing head through the action of negative pressure, and the packaging film is flattened through the two ends of the gluing head. At the same time, the negative pressure of the multiple adsorption holes can adsorb and clean impurities such as dust attached to the adhesive surface of the packaging film;

[0019] S3, when the glue coating head, the driving block and the piezoelectric group move to the end of the driving screw away from the impeller housing and abut against the adaptive adjustment rod, the rotor is rotated in the reverse direction to move the glue coating head toward the impeller housing;

[0020] S4. When the glue coating head moves toward the impeller housing, multiple piezoelectric groups are activated to extrude the glue in the coating chamber through the coating holes, so that the glue is evenly coated on the packaging film until the glue coating head contacts the adaptive adjustment rod close to the impeller housing, and the coating of the bonding surfaces of the packaging film at both ends is completed. During this process, multiple adsorption holes make the packaging film always fit on the glue coating head, so that the glue coating is more even.

[0021] S5. In the process of S4, the driving screw causes the adaptive adjustment rod to drive the two adjustment cylinders to rotate through friction, and at the same time, the adaptive adjustment rod drives the bracket and the pressure block to move, so that the pressure block contacts the packaging film and generates pressure on the packaging film. The adjustment cylinder stretches the packaging film during the rotation process to keep the packaging film taut. The tension of the packaging film by the adjustment cylinder cooperates with the sliding of the glue coating head in the direction away from the impeller housing to flatten the packaging film.

[0022] S6. When the glue coating head moves toward the impeller housing, the pressing block and the glue coating head clamp the packaging film in the middle, and the glue coating head and the pressing block cooperate to make the glue be coated on the packaging film more evenly and smoothly.

[0023] S7. After the glue coating is completed, the two ends of the packaging film are bonded together through an external pressure device.

[0024] In summary, this application has the following beneficial effects:

[0025] 1. Good gluing effect and high splicing strength. The device uses key components such as gluing head, piezoelectric group, and coating hole to evenly coat the glue on the bonding surface of the packaging film. The two ends of the gluing head are in close contact with the packaging film, and the packaging film is flattened during the movement. The adsorption hole uses negative pressure to adsorb the packaging film on the surface of the gluing head, further ensuring the uniformity of gluing. The pressing block cooperates with the gluing head to clamp the packaging film in the middle during the gluing process, making the coated glue smoother. This structure and working method effectively avoids problems such as uneven and uneven glue coating, so that the bonding surface of the packaging film obtains a high-quality glue coating, thereby ensuring the high strength of the splicing part and improving the overall performance of the packaging film.

[0026] 2. High working efficiency and high degree of automation. The cooperation of the driving screw with the adaptive adjustment rod, the adjustment cylinder, the bracket and other components can realize the reciprocating motion of the glue coating head along a straight line and automatically complete the glue coating operation. The centrifugal impeller rotates at high speed in the impeller housing, generating a strong negative pressure, and the packaging film is firmly adsorbed through the adjustment cylinder, which can not only flatten the packaging film but also clean the bonding surface. The design of the rotor and the magnetic group uses magnetic transmission, with a compact structure and high transmission efficiency. The working process of the entire device can be automatically controlled by the controller, which greatly improves the gluing efficiency and reduces labor input, making it very suitable for industrial production.

[0027] 3. The glue application amount is adjustable to adapt to different packaging films. There is friction between the driving screw and the adaptive adjustment rod, and the friction is adjustable. By changing the friction between the two, the movement speed of the glue application head can be flexibly adjusted, thereby controlling the amount of glue applied per unit time. This design enables the device to adapt to packaging films of different thicknesses and materials, and the glue application amount can be optimized according to actual needs to avoid glue waste.

[0028] 4. Modular components make maintenance and replacement easy. The key components such as the glue coating head, adjustment cylinder, and pressure block are all detachably connected, which is convenient for disassembly and replacement. The vulnerable parts such as the piezoelectric group and adsorption holes can also be replaced separately without replacing the entire glue coating head. The connection between the impeller housing and the pipeline is also very clever, which is easy to disassemble and clean. The structure of the entire device is modular, and different components can be maintained and replaced independently, which reduces the maintenance cost and increases the service life of the device.

[0029] 5. The packing film is firmly adsorbed and the operation is more stable. During the gluing process, the packing film is not only adsorbed by the adjusting cylinder and the gluing head, but the adjusting cylinder also actively stretches the packing film through surface friction, so that it is always in a tensioned state. The packing film is under the effective control of the device throughout the whole process, and there will be no problems such as slipping, wrinkling, and falling off. The gluing process is smooth and orderly. The adjusting cylinder automatically captures the packing film through negative pressure and automatically adjusts the tension, realizing the automation of packing film adsorption and tension adjustment, greatly improving work efficiency and gluing quality.

[0030] 6. Adaptive adjustment of gluing pressure makes gluing more uniform. The cooperation between the piezoelectric group and the controller can automatically adjust the gluing pressure according to the thickness, tension and other parameters of the packaging film. Adaptive adjustment of gluing pressure makes the glue coating more uniform, avoiding the problem of excessive or insufficient gluing, ensuring the bonding strength and avoiding glue waste.

[0031] 7. The motor has dual functions, which is energy-saving and efficient. The motor not only drives the centrifugal impeller to rotate and generate negative pressure, but also drives the glue coating head to move through magnetic transmission. One motor plays a dual role, saving energy and improving efficiency. This ingenious design makes full use of the performance of the motor and embodies the concept of energy saving and environmental protection.

[0032] 8. Reasonable structural design, low manufacturing and use costs. The entire device has a compact structure, high component utilization, and avoids redundant design. Key components such as the glue coating head are made of lightweight materials such as aluminum alloy, which further reduces the weight of the device. The power source of the device is a motor, which drives multiple components to work through a clever transmission design, saving energy. The manufacturing and use costs are very low, in line with the concept of energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is the overall structure diagram of this application;

[0034] Figure 2 This is an overall exploded view of this application;

[0035] Figure 3 Partial explosion for this application Figure 1 ;

[0036] Figure 4 Partial explosion for this application Figure 2 ;

[0037] Figure 5 Partial explosion for this application Figure 3 ;

[0038] Figure 6 Partial explosion for this application Figure 4 ;

[0039] Figure 7A side view of the present application;

[0040] Figure 8 For this application Figure 7 Middle AA section view;

[0041] Fig. 9 For this application Figure 8 Middle BB section view;

[0042] Fig.10 For this application Figure 8 Middle CC section view;

[0043] Fig.11 For this application Figure 8 Middle DD section view;

[0044] Fig.12 For this application Fig.11 Middle EE section view;

[0045] Fig.13 This is the appearance structure diagram of this application.

[0046] Description of the numbers in the figure:

[0047] 1. Glue coating head; 2. Pressure chamber; 3. Drive block; 4. Piezoelectric group; 5. Coating hole; 6. Adsorption chamber; 7. Adsorption hole; 8. Coating chamber; 9. Drive screw; 10. Adaptive adjustment rod; 11. Adjustment cylinder; 12. Hose; 13. First magnetic group; 14. Second magnetic group; 15. Rotor; 16. Centrifugal impeller; 17. Impeller housing; 18. Press block; 19. Bracket; 20. Base. DETAILED DESCRIPTION

[0048] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0049] Example 1

[0050] Figures 1 to 13The figure shows a gluing and splicing device for cotton packaging film, comprising a gluing head 1, a pressure chamber 2 is provided in the gluing head 1, a driving block 3 is fixedly connected to the center of the pressure chamber 2, a piezoelectric group 4 is fixedly connected to the top and bottom of the driving block 3, a plurality of coating holes 5 are provided at the top and bottom of the gluing head 1, a symmetrically arranged adsorption chamber 6 is provided in the gluing head 1 between its outer wall and the pressure chamber 2, a plurality of adsorption holes 7 are provided at positions corresponding to the gluing head 1 and the adsorption chamber 6, a coating chamber 8 is formed between the piezoelectric group 4 and the pressure chamber 2, the coating chamber 8 is filled with glue, and the coating chamber 8 is connected to an external The glue supply equipment is connected, the driving block 3 is connected to a driving screw 9 through an internal thread, and both ends of the driving screw 9 are rotatably connected to symmetrically arranged adaptive adjustment rods 10. There is friction between the driving screw 9 and the adaptive adjustment rod 10, and the magnitude of the friction is adjustable. Two adjusting cylinders 11 are fixedly connected between the two ends of the symmetrically arranged adaptive adjustment rods 10 away from the driving screw 9. The adjusting cylinder 11 is a hollow structure, and a plurality of through holes connected to the hollow part are opened on the adjusting cylinder 11. The hollow part of the adjusting cylinder 11 is connected to the adsorption chamber 6 through a hose 12, and the piezoelectric group 4 is electrically connected to a controller.

[0051] Figures 2 to 4 As shown, one end of the driving screw 9 passes through the adaptive adjustment rod 10, and the passing portion is fixedly connected with a first magnetic group 13, a second magnetic group 14 is arranged outside the first magnetic group 13, and the outer end of the glue coating head 1 is slidably connected with the adjustment cylinder 11.

[0052] The end of the packaging film away from the glue coating head 1 is in contact with the pressing block 18, and both ends of the pressing block 18 are rotatably connected to the bracket 19. One end of the bracket 19 is rotatably connected to the adaptive adjustment rod 10, and the other end is slidably connected to the base 20 through a dovetail tenon. The stator is fixedly connected to the base 20, and both ends of the glue coating head 1 are fixedly connected to end caps, and the driving screw 9 passes through the two end caps.

[0053] Before use, adjust the glue head 1 to one end close to the impeller housing 17. When in use, the two ends of the packaging film to be glued are respectively contacted with the corresponding adjustment cylinder 11, and then the motor is started to make the rotor 15 rotate rapidly. When the rotor 15 rotates, it drives the second magnetic group 14 to rotate, and the second magnetic group 14 then drives the first magnetic group 13 and the driving screw 9 to rotate. At this time, the glue head 1, the driving block 3 and the piezoelectric group 4 move along the driving screw 9 to the end away from the impeller housing 17 under the action of the driving screw 9. In this process, negative pressure is generated in the impeller housing 17, and the negative pressure then adsorbs the packaging film through the through hole on the adjustment cylinder 11, and flattens the packaging film through the two ends of the glue head 1. Multiple adsorption holes 7 make the packaging film contact with the two ends of the glue head 1 through the action of negative pressure, and at the same time, impurities such as dust attached to the adhesive surface of the packaging film can be adsorbed and cleaned.

[0054] When the glue coating head 1, the driving block 3 and the piezoelectric group 4 move to the end of the driving screw 9 away from the impeller housing 17 and abut against the adaptive adjustment rod 10, the rotor 15 is rotated in the opposite direction to move the glue coating head 1 toward the impeller housing 17. During the movement, the multiple piezoelectric groups 4 are activated to squeeze the glue in the coating chamber 8 through the coating holes 5, so that the glue is evenly coated on the packaging film until the glue coating head 1 contacts the adaptive adjustment rod 10 close to the impeller housing 17, completing the coating of the bonding surfaces of the packaging films at both ends. The multiple adsorption holes 7 keep the packaging film always attached to the glue coating head 1, so that the glue coating is more even.

[0055] During the gluing process, the driving screw 9 causes the adaptive adjustment rod 10 to rotate the two adjustment cylinders 11 through friction, and at the same time drives the bracket 19 and the pressure block 18 to move, so that the pressure block 18 contacts the packaging film and generates pressure on the packaging film. The adjustment cylinder 11 stretches the packaging film during the rotation process, so that the packaging film remains taut, and slides with the gluing head 1 in the direction away from the impeller housing 17 to flatten the packaging film. When the gluing head 1 moves in the direction close to the impeller housing 17, the pressure block 18 and the gluing head 1 clamp the packaging film in the middle, and the glue can be coated on the packaging film more evenly and smoothly through the cooperation of the two.

[0056] In this embodiment, the friction between the drive screw 9 and the adaptive adjustment rod 10 can be adjusted by changing the clamping force between the two. Specifically, a spring or a cylinder can be set on the adaptive adjustment rod 10, and the compression amount of the spring or the pressure of the cylinder can be adjusted to change the clamping force between the adaptive adjustment rod 10 and the drive screw 9, thereby adjusting the friction between the two. The magnitude of the friction determines the moving speed of the glue coating head 1, which in turn affects the amount of glue applied per unit time. By reasonably adjusting the friction, the amount of glue applied can be adapted to packaging films of different thicknesses and materials, avoiding the problem of too much or too little glue, ensuring the bonding strength and avoiding glue waste.

[0057] The gluing and splicing device provided in this embodiment realizes gluing by cooperating with the gluing head 1, the adjusting cylinder 11, the pressing block 18 and other components, and utilizes the driving screw 9 to rotate and drive the gluing head 1 to move back and forth, utilizes the piezoelectric group 4 to extrude glue, and utilizes the adsorption holes 7 and negative pressure to adsorb, flatten and clean the packaging film. The whole process has a high degree of automation and a good gluing effect, which can significantly improve the efficiency of cotton packaging. The driving screw 9 and the adaptive adjusting rod 10 cooperate with the first magnetic group 13 and the second magnetic group 14 to automatically adjust the amount of glue according to the thickness of the packaging film, so that the gluing is more uniform. The pressing of the packaging film by the pressing block 18 and the stretching of the packaging film by the adjusting cylinder 11 further ensure the flatness of the packaging film and the consistency of the gluing.

[0058] Example 2

[0059] Figure 6It is shown that, based on Example 1, one end of the second magnetic group 14 away from the first magnetic group 13 is fixedly connected to the rotor 15 , the outer end of the rotor 15 is rotatably connected to the stator, and the stator is fixedly connected to the adaptive adjustment rod 10 .

[0060] The rotating shaft of the rotor 15 at one end away from the second magnetic group 14 penetrates the stator, and the penetrating portion is fixedly connected to the centrifugal impeller 16. A winding coil is arranged in the stator, and the winding coil is electrically connected to the controller.

[0061] An impeller housing 17 fixedly connected to the stator is disposed outside the centrifugal impeller 16 , and a plurality of exhaust holes are provided at positions corresponding to the outer ends of the blades of the impeller housing 17 and the centrifugal impeller 16 .

[0062] An end of the impeller housing 17 away from the centrifugal impeller 16 and a position corresponding to the rotating shaft of the centrifugal impeller 16 are connected to the hollow part of the regulating cylinder 11 through a pipeline.

[0063] Figures 1 to 13 As shown, before use, the glue coating head 1 is adjusted to one end close to the impeller housing 17. When in use, the two ends of the packaging film to be coated with glue are respectively contacted with the corresponding adjustment cylinder 11, and then the motor is started to rotate the rotor 15 rapidly. When the rotor 15 rotates, the first magnetic group 13 and the driving screw 9 are driven to rotate through the second magnetic group 14, and the centrifugal impeller 16 is also driven to rotate at high speed. Under the high-speed rotation of the centrifugal impeller 16, a strong negative pressure is generated in the impeller housing 17, and the negative pressure acts on the surface of the packaging film through the through holes on the pipeline and the adjustment cylinder 11, and the packaging film is firmly adsorbed on the adjustment cylinder 11.

[0064] Under the action of negative pressure, the packaging film is close to the adjustment cylinder 11. When the glue coating head 1 moves along the driving screw 9 to the end away from the impeller housing 17, the packaging film is stretched and kept taut by the adjustment cylinder 11, and is flattened at the same time under the action of the two ends of the glue coating head 1. After the glue coating head 1 moves to the far end, the motor rotates in the reverse direction, driving the glue coating head 1 to move toward the impeller housing 17. During the movement, the glue coating head 1 applies glue to the flattened packaging film surface through the piezoelectric group 4.

[0065] During the gluing process, a stable negative pressure is maintained in the impeller housing 17, so that the packaging film always fits evenly on the adjustment cylinder 11 and the gluing head 1, ensuring the uniformity of gluing. When the gluing head 1 is reset, the impeller housing 17 stops working, and the packaging film is relaxed on the adjustment cylinder 11, which is convenient for removal from the equipment.

[0066] On the basis of Example 1, this embodiment adds components such as a rotor 15, a stator, a centrifugal impeller 16 and an impeller housing 17 to form an efficient negative pressure generating device. By utilizing the strong negative pressure generated by the high-speed rotation of the centrifugal impeller 16 in the impeller housing 17, the packaging film can be firmly adsorbed on the equipment through cooperation with the regulating cylinder 11, and the packaging film can always be kept flat and tensioned during the gluing process, thereby greatly improving the accuracy and uniformity of the gluing. At the same time, this embodiment cleverly uses the rotor 15 to drive the connection between the first magnetic group 13 and the driving screw 9 through the second magnetic group 14, and while driving the gluing head 1 to reciprocate, it can drive the centrifugal impeller 16 to rotate and generate negative pressure, so that the entire device has a compact structure, high component utilization, and greatly improved work efficiency. The exhaust hole on the impeller housing 17 can quickly release the negative pressure when the machine is stopped, which is convenient for taking and placing the packaging film. The structure provided in this embodiment significantly improves the speed and quality of cotton packaging film gluing and splicing, and has important practical value.

[0067] In this embodiment, the rotor 15 adopts a YS-6034-110 permanent magnet synchronous rotor with a rated power of 1.1kW and a rated speed of 3000rpm. The stator adopts a matching YS-6034-110 permanent magnet synchronous stator, and its internal winding coil is wound with Φ0.75mm enameled copper wire with 200 turns. The stator is fixed to the adaptive adjustment rod 10 by bolts, and the rotor 15 is installed in the stator through a bearing, and an air gap of 1mm is maintained between the two. When the motor rotates in the opposite direction, under the action of the rotor 15 and the second magnetic group 14, the moving direction of the glue coating head 1 changes from moving away from the impeller housing 17 to moving toward the impeller housing 17. This change in the direction of movement ensures the continuity and integrity of the glue coating and avoids the problem of insufficient glue coating at the end.

[0068] Example 3

[0069] Figures 1 to 13 It is shown that this embodiment provides a working method of a gluing and splicing device for cotton packaging film, and the specific steps are as follows:

[0070] S1. Before use, adjust the glue coating head 1 to one end close to the impeller housing 17 to prepare for the glue coating work.

[0071] S2. When in use, the two ends of the packaging film to be coated with glue are respectively contacted with the corresponding adjustment cylinder 11, so that the packaging film is within the controllable range of the device. Then the motor is started, and the rotor 15 starts to rotate rapidly, while driving the centrifugal impeller 16 and the second magnetic group 14 to rotate together. The second magnetic group 14 acts on the first magnetic group 13 through magnetic force, thereby driving the drive screw 9 to rotate. Under the action of the drive screw 9, the glue head 1, the drive block 3 and the piezoelectric group 4 move along the drive screw 9 to the end away from the impeller housing 17. In this process, the centrifugal impeller 16 rotates at high speed to generate a strong negative pressure in the impeller housing 17, which acts on the surface of the packaging film through the pipe connected to the impeller housing 17 and the through hole on the adjustment cylinder 11, and the packaging film is firmly adsorbed on the adjustment cylinder 11. At the same time, the multiple adsorption holes 7 on the glue head 1 also adsorb the packaging film under the action of negative pressure, so that it is in close contact with both ends of the glue head 1. Under the action of the glue head 1, the packaging film is well flattened. The negative pressure generated by the adsorption holes 7 can also clean the dust and other impurities on the bonding surface of the packaging film, creating good conditions for gluing.

[0072] S3. When the glue coating head 1, the driving block 3 and the piezoelectric group 4 move to the end of the driving screw 9 away from the impeller housing 17 and abut against the adaptive adjustment rod 10, the motor is controlled to rotate in the reverse direction so that the glue coating head 1 starts to move towards the impeller housing 17 and prepares for glue coating.

[0073] S4, when the glue coating head 1 moves toward the impeller housing 17, the controller activates the piezoelectric group 4 to extrude the glue stored in the coating chamber 8 through the coating hole 5 and evenly coat it on the flattened packaging film surface. The glue coating head 1 continues to move until it contacts the adaptive adjustment rod 10 near one end of the impeller housing 17, at which time the glue coating work on the bonding surface of the packaging film at both ends has been completed. During the entire gluing process, the adsorption hole 7 always adsorbs the packaging film on the surface of the glue coating head 1, further ensuring the uniformity of glue coating.

[0074] S5. While the glue coating head 1 is moving, the driving screw 9 drives the two adjustment cylinders 11 to rotate synchronously through the friction between the driving screw 9 and the adaptive adjustment rod 10. The adaptive adjustment rod 10 also drives the bracket 19 and the pressure block 18 to move together, so that the pressure block 18 contacts the packaging film and applies appropriate pressure. When the adjustment cylinder 11 rotates, the packaging film is continuously stretched through the friction between the surface and the packaging film, so that it is always in a tensioned state. The stretching effect of the adjustment cylinder 11 cooperates with the flattening effect of the glue coating head 1, thereby achieving a thorough flattening of the packaging film.

[0075] S6, when the glue coating head 1 moves toward the impeller housing 17, the pressing block 18 and the glue coating head 1 clamp the packaging film in the middle from both sides. Under the cooperation of the two, the glue coated on the packaging film can be further evened and flattened, and the glue coating quality is effectively guaranteed.

[0076] S7. After the glue coating is completed, the bonding surfaces at both ends of the packaging film are pressed tightly by an external pressure device (such as a cylinder or hydraulic device) to achieve a firm bond and complete the splicing of the packaging film.

[0077] The two ends of the packaging film to be coated with glue are respectively contacted with the corresponding adjustment cylinder 11, and then the motor is started to make the rotor 15 rotate rapidly. When the rotor 15 rotates, it drives the centrifugal impeller 16 and the second magnetic group 14 to rotate, and the second magnetic group 14 then drives the first magnetic group 13 and the driving screw 9 to rotate. At this time, the glue head 1, the driving block 3 and the piezoelectric group 4 move along the driving screw 9 to the end away from the impeller housing 17 under the action of the driving screw 9. In this process, the centrifugal impeller 16 generates negative pressure in the impeller housing 17, and the negative pressure then adsorbs the packaging film through the through holes on the adjustment cylinder 11. In this process, the multiple adsorption holes 7 make the packaging film contact with the two ends of the glue coating head 1 through the action of negative pressure, and the packaging film is flattened through the two ends of the glue coating head 1. At the same time, the negative pressure of the multiple adsorption holes 7 can adsorb and clean impurities such as dust attached to the bonding surface of the packaging film;

[0078] When the glue coating head 1, the driving block 3 and the piezoelectric group 4 move to the end of the driving screw 9 away from the impeller housing 17 and abut against the adaptive adjustment rod 10, the rotor 15 is rotated in the opposite direction to move the glue coating head 1 toward the impeller housing 17, and at the same time, multiple piezoelectric groups 4 are started to squeeze the glue in the coating chamber 8 through the coating holes 5, so that the glue is evenly coated on the packaging film until the glue coating head 1 contacts the adaptive adjustment rod 10 close to the impeller housing 17, completing the coating of the bonding surfaces of the packaging film at both ends. In this process, multiple adsorption holes 7 keep the packaging film always attached to the glue coating head 1, so that the glue coating is more even. In this process, the driving screw 9 uses friction to make The adaptive adjustment rod 10 drives the two adjustment cylinders 11 to rotate, and at the same time, the adaptive adjustment rod 10 drives the bracket 19 and the pressure block 18 to move, so that the pressure block 18 contacts the packaging film and generates pressure on the packaging film. The adjustment cylinder 11 stretches the packaging film during the rotation process to keep the packaging film taut. The tension of the packaging film by the adjustment cylinder 11 cooperates with the sliding of the glue coating head 1 in the direction away from the impeller housing 17 to flatten the packaging film. In the process of the glue coating head 1 moving in the direction close to the impeller housing 17, the pressure block 18 and the glue coating head 1 clamp the packaging film in the middle, and the glue coating head 1 cooperates with the pressure block 18 to make the glue more evenly and smoothly coated on the packaging film.

[0079] In step S3, after the glue coating head 1 moves to the far end, it needs to stay for 2-3 seconds to allow the piezoelectric group 4 to fully squeeze out the glue, so that the glue forms a full glue pile on the packaging film, and then start to move in the opposite direction. This can ensure the uniformity of glue coating and avoid the problem of intermittent or uneven glue coating. In step S7, the external pressure equipment can use a CHELIC cylinder (model SC50×50), with a working pressure of 0.5MPa and a pressing time of 5 seconds. The cylinder provides a stable and continuous pressing force, which can make the bonding surface of the packaging film fully contact and improve the bonding strength. The control of the pressing time is also very important. If the time is too short, the bonding is not firm, and if the time is too long, it will affect the production efficiency. Therefore, it is necessary to optimize according to factors such as glue performance and packaging film material.

[0080] During the gluing process, in order to prevent glue from overflowing or splashing and contaminating other parts, baffles can be set on both sides of the gluing head 1, and a gap of 0.5-1mm is left between the baffles and the gluing head 1, which can not only prevent glue from splashing, but also does not affect the movement of the gluing head 1. In addition, a layer of Teflon coating can be applied to the surface of the parts that are easily contaminated by glue. Teflon has excellent anti-stick properties and can effectively prevent glue from adhering to the parts.

[0081] The working method of the gluing splicing device provided in this embodiment makes full use of the cooperation of the various components of the device, and realizes highly automated, efficient and high-quality gluing splicing of packaging film. During the working process, the adsorption holes 7 on the adjusting cylinder 11 and the gluing head 1 always firmly adsorb the packaging film, ensuring that it is in the best flattened state, creating good conditions for gluing. The cooperation between the pressing block 18 and the gluing head 1 further improves the uniformity of the gluing. The negative pressure generated by the centrifugal impeller 16 is not only used for the adsorption of the packaging film, but also for removing impurities on the bonding surface. The driving screw 9 cleverly links the gluing head 1, the adjusting cylinder 11 and other components, so that they are highly coordinated during the gluing process. The entire gluing process realizes automated control, high production efficiency, good gluing effect, and can also reduce labor costs and material loss, which is very suitable for the needs of industrial production. In addition, the device is modularly designed, the components are detachable and replaceable, and maintenance and debugging are very convenient. The method provided in this embodiment gives full play to the technical advantages of the device and has significant practical value.

[0082] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A gluing and splicing device for cotton packaging film, characterized in that: The invention comprises a glue coating head (1), wherein a pressure chamber (2) and a pair of adsorption chambers (6) are provided in the glue coating head (1), a driving block (3) is fixedly connected to the center of the pressure chamber (2), the top and bottom of the driving block (3) are fixedly connected to a piezoelectric group (4), a plurality of coating holes (5) are provided at the top and bottom of the glue coating head (1), a plurality of adsorption holes (7) are provided at the upper and lower ends of the glue coating head (1), and the plurality of adsorption holes (7) are respectively connected to the pair of adsorption chambers (6), a coating chamber (8) is formed between the piezoelectric group (4) and the pressure chamber (2), the coating chamber (8) is filled with glue, and the coating chamber (8) is connected to an external glue supply device, the driving block (3) A driving screw (9) is connected to the internal thread, and both ends of the driving screw (9) are rotatably connected to symmetrically arranged adaptive adjustment rods (10), and there is friction between the driving screw (9) and the adaptive adjustment rod (10), and the magnitude of the friction is adjustable. A pair of adjustment cylinders (11) are fixedly connected between the pair of adaptive adjustment rods (10), and the driving screw (9) is located between the pair of adaptive adjustment rods (10). The adjustment cylinder (11) is a hollow structure, and a plurality of through holes connected to the hollow part are provided on the adjustment cylinder (11). The hollow part of the adjustment cylinder (11) is connected to the adsorption chamber (6) through a hose (12), and the piezoelectric group (4) is electrically connected to a controller.

2. A gluing and splicing device for cotton packaging film according to claim 1, characterized in that: One end of the driving screw (9) passes through the adaptive adjustment rod (10), and a motor is provided at one end of the passing portion, the motor comprising a stator and a rotor (15), and the stator is fixedly connected to the adaptive adjustment rod (10), a winding coil is provided inside the stator, and the winding coil is electrically connected to the controller, and the outer end of the glue coating head (1) is slidably connected to the adjustment cylinder (11).

3. The gluing and splicing device for cotton packaging film according to claim 2, characterized in that: A first magnetic group (13) and a second magnetic group (14) are fixedly connected between the rotor (15) and the driving screw rod (9); the first magnetic group (13) is located on an inner wall of the second magnetic group (14); and one end of the second magnetic group (14) away from the first magnetic group (13) is fixedly connected to the rotor (15) of the motor.

4. The gluing and splicing device for cotton packaging film according to claim 3, characterized in that: The rotating shaft of the end of the rotor (15) away from the second magnetic group (14) passes through the stator, and the passing portion is fixedly connected to a centrifugal impeller (16).

5. The gluing and splicing device for cotton packaging film according to claim 4, characterized in that: An impeller casing (17) fixedly connected to the stator is provided on the outside of the centrifugal impeller (16), and a plurality of exhaust holes are provided at positions corresponding to the outer ends of the blades of the centrifugal impeller (16) and the impeller casing (17).

6. The gluing and splicing device for cotton packaging film according to claim 5, characterized in that: An end of the impeller housing (17) away from the centrifugal impeller (16) and a position corresponding to the axis of the centrifugal impeller (16) are connected to the hollow portion of the regulating cylinder (11) through a pipeline.

7. The gluing and splicing device for cotton packaging film according to claim 6, characterized in that: One end of the packaging film away from the glue coating head (1) is arranged in contact with a pressing block (18), and both ends of the pressing block (18) are rotatably connected to a bracket (19).

8. The gluing and splicing device for cotton packaging film according to claim 7, characterized in that: One end of the bracket (19) is rotatably connected to the adaptive adjustment rod (10), and the other end is slidably connected to the base (20) via a dovetail tenon. The stator is fixedly connected to the base (20). Both ends of the glue coating head (1) are fixedly connected to end covers, and the driving screw (9) passes through the two end covers.

9. The gluing and splicing device for cotton packaging film according to claim 8, characterized in that: The method of use includes the following steps: S1. Before use, adjust the glue coating head (1) to the end close to the impeller housing (17); S2. When in use, the two ends of the packaging film to be coated with glue are respectively brought into contact with the corresponding adjustment cylinder (11), and then the motor is started to make the rotor (15) rotate rapidly. When the rotor (15) rotates, it drives the centrifugal impeller (16) and the second magnetic group (14) to rotate. The second magnetic group (14) then drives the first magnetic group (13) and the driving screw (9) to rotate. At this time, the gluing head (1), the driving block (3) and the piezoelectric group (4) move along the driving screw (9) to the end away from the impeller housing (17) under the action of the driving screw (9). During this process, the centrifugal impeller (16) generates negative pressure in the impeller housing (17), and the negative pressure then adsorbs the packaging film through the through hole on the adjustment cylinder (11). During this process, the multiple adsorption holes (7) make the packaging film contact with the two ends of the gluing head (1) through the action of the negative pressure, and the packaging film is flattened through the two ends of the gluing head (1). At the same time, the negative pressure of the multiple adsorption holes (7) can adsorb and clean impurities such as dust attached to the adhesive surface of the packaging film; S3, when the glue coating head (1), the driving block (3) and the piezoelectric group (4) move to the end of the driving screw (9) away from the impeller housing (17) and abut against the adaptive adjustment rod (10), the rotor (15) is rotated in the reverse direction to move the glue coating head (1) towards the impeller housing (17); S4, when the glue coating head (1) moves toward the impeller housing (17), the plurality of piezoelectric groups (4) are activated to extrude the glue in the coating chamber (8) through the coating holes (5), so that the glue is evenly coated on the packaging film, until the glue coating head (1) contacts the adaptive adjustment rod (10) close to the impeller housing (17), and the coating of the bonding surfaces of the packaging film at both ends is completed. During this process, the plurality of adsorption holes (7) keep the packaging film always attached to the glue coating head (1), so that the glue coating is more even; S5. During the process of S4, the driving screw (9) causes the adaptive adjustment rod (10) to drive the two adjustment cylinders (11) to rotate through friction force. At the same time, the adaptive adjustment rod (10) drives the bracket (19) and the pressure block (18) to move, so that the pressure block (18) contacts the packaging film and generates pressure on the packaging film. The adjustment cylinder (11) stretches the packaging film during the rotation process to keep the packaging film taut. The tension of the packaging film by the adjustment cylinder (11) cooperates with the sliding of the glue coating head (1) in a direction away from the impeller housing (17) to flatten the packaging film. S6. When the glue coating head (1) moves toward the impeller housing (17), the pressing block (18) and the glue coating head (1) clamp the packaging film in the middle, and the glue coating head (1) and the pressing block (18) cooperate to allow the glue to be coated on the packaging film more evenly and smoothly. S7. After the glue coating is completed, the two ends of the packaging film are bonded together through an external pressure device.

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