A continuous coating and speed control device for a packaging strip

Abstract

The application provides a continuous gluing and speed regulating device for packaging tapes, characterized by comprising a traction mechanism, a guiding and rectifying mechanism, a gluing mechanism and a speed regulating mechanism. The tipping paper tape is kept at a proper speed, tension and center position by the traction mechanism and the guiding and rectifying mechanism, and is stably, continuously and accurately coated on the tipping paper tape by the gluing mechanism according to a set pattern. Meanwhile, the self-cleaning mechanism is used to clean the slit type nozzle, thereby improving the gluing quality. The tipping paper tape is intermittently conveyed by the speed regulating mechanism, so as to provide a timing for the blade on the cutter roll to cut the tipping paper tape on the transmission roll, facilitate accurate cutting of the tipping paper tape into tipping paper pieces, facilitate winding of the tipping paper pieces around the filter and the cigarette, improve the quality of the cigarette, reduce the waste rate and increase the enterprise income.

Description

Technical Field

[0001] This invention relates to a continuous gluing and speed control device for packaging tape, belonging to the field of tobacco processing equipment design and manufacturing technology. Background Technology

[0002] In the production of filter cigarettes, tipping paper is used to wrap and connect the filter to the cigarette to form a cigarette with a filter. The tipping paper supply process is as follows: after the tipping paper has been unrolled, glue is applied according to a set pattern, and then it is cut into paper sheets that are adapted to the length of the cigarette and fed to the wrapping machine to wrap the filter and cigarette into a cigarette with a filter. In this process, when using equally long, glued tipping paper sheets to wrap the cigarette and filter into a cigarette with a filter, the tipping paper belt needs to be fed in real time with high precision to ensure that the tipping paper belt is kept in the set position. This prevents the tipping paper belt from shifting during operation, which would result in either too much or too little tipping paper in the wrapped cigarette, thus causing the cigarette to be unqualified.

[0003] In addition, during the gluing process of the tipping paper, besides ensuring the quality of the gluing, it is also necessary to prevent the gluing equipment from being contaminated during the gluing process and to facilitate the maintenance and upkeep of the equipment. Furthermore, after the tipping paper strips are coated with glue, they need to be cut into corresponding tipping paper pieces for rolling individual cigarettes. However, since the inner surface of the tipping paper strip is already coated with glue, the glue easily sticks to the cutter, causing equipment contamination. Moreover, when cutting the tipping paper strip into tipping paper pieces, the cutting speed is difficult to adjust, causing the cut paper pieces to be pulled forward before they have finished rolling the filter and cigarette, thus compromising the rolling quality. Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0004] The present invention aims to provide a continuous gluing and speed adjustment device for pulling, guiding, and applying glue according to the designed glue pattern of the splicing paper strip, and preparing for the subsequent precise cutting, so that the cut splicing paper strip becomes a rectangular splicing paper strip of equal width and length that is easy to roll into a cigarette and filter tip.

[0005] This invention is achieved through the following technical solution: a continuous adhesive application and speed control device for packaging tape, comprising:

[0006] The traction mechanism is used to control the running speed and tension of the paper tape during the traction and splicing process.

[0007] The guide and correction mechanism is used to control the centering of the paper tape during the operation of the paper tape and prevent the center of the paper tape from deviating.

[0008] The gluing mechanism is used to apply glue to the splicing paper tape according to a set pattern during the splicing process and to perform self-cleaning.

[0009] The speed change mechanism is used to control the speed of the splicing paper tape during its operation, so as to facilitate the subsequent cutting of the splicing paper tape into rectangular splicing paper pieces.

[0010] The traction mechanism includes at least one drive roller and a pressure roller in contact with the drive roller. The rotation speed of the drive roller is adapted to the running speed of the feeding paper tape so that when the drive roller rotates, it drives the pressure roller to rotate synchronously under the action of friction, so that the front side of the input feeding paper tape first passes over the drive roller and then the back side passes over the pressure roller, thereby being pulled and run under the action of friction between the drive roller and the pressure roller.

[0011] The axial length of the pressure roller is greater than the width of the paper tape being fed, so that after the drive roller and the pressure roller come into contact, the paper tape being fed is kept between the two rollers.

[0012] Furthermore, the pressure roller is made into an elastic roller, such as a rubber roller or a composite material roller.

[0013] Furthermore, the pressure roller is connected to a pressure regulator, which includes: a connecting frame with one end connected to both ends of the pressure roller shaft, the other end of the connecting frame hinged to a hinge shaft, one side of the connecting frame connected to one end of a spring, the other end of the spring connected to a screw, and the screw screwed to a fixing nut, so as to adjust the spring force of the spring by manipulating the screw as needed, thereby adjusting the swing angle of the pressure roller around the hinge shaft, so that the pressure roller presses tightly on the drive roller, avoiding slippage between the two rollers, thereby completing the friction traction of the paper tape and meeting the actual production needs.

[0014] The guiding and correcting mechanism includes at least one guiding and correcting roller, and at least two symmetrical first and second auxiliary rollers that form a sufficient wrap angle between the splicing paper tape and the guiding and correcting roller; so that after the input splicing paper tape is guided by the first auxiliary roller, it wraps around the guiding and correcting roller with a certain wrap angle α, which is in the range of 120°-180°, and then is discharged by the second auxiliary roller.

[0015] The guide roller includes: a roller with an internal shaft cavity, the roller being rotatably mounted on a bushing within the shaft cavity via front and rear bearings, causing the roller to rotate with the bearings; a shaft hole within the bushing, and a U-shaped retainer connected to the inner end of the bushing, the U-shaped retainer being hinged to a slider via a pin; the outer end of the bushing being rolledly connected to a spherical bushing within its shaft hole, the spherical bushing being fitted onto a fixed rod at the center of the shaft hole, ensuring that the shaft center of the bushing outside the spherical bushing coincides with that of the roller; and a horizontal screw within the roller is used to guide the roller. The hole is screwed to the lead screw, which is connected to the output shaft of the correction motor. The forward and reverse rotation of the correction motor drives the lead screw to rotate synchronously. As the slider screwed to the lead screw reciprocates along the lead screw, the U-shaped bracket, bushing, and roller swing around the pin shaft under the action of the spherical bearing. This forms a β-angle swing along the central axis, causing the center of the paper tape on the guide correction roller to move accordingly, ensuring that the center position of the paper tape does not deviate, thus completing the correction of the paper tape.

[0016] A detection element is installed on the feeding paper tape running path between the guide correction roller and the second auxiliary roller. This detection element is connected to the controller via a signal. At the same time, the controller is electrically connected to the correction motor of the guide correction roller. The controller is a conventional control device so that when the detection component detects a deviation in the feeding paper tape during its operation, it sends a deviation signal to the controller. The controller then issues a command to start the correction motor, which drives the lead screw to rotate. Simultaneously, the slider moves along the lead screw. Under the action of the spherical bearing, the U-shaped bracket, bushing, and roller swing around the pin shaft at a certain angle to correct the deviation of the feeding paper tape to the correct position.

[0017] The gluing mechanism includes a gluing head, a self-cleaning mechanism and a gluing supply mechanism mating with the gluing head; wherein:

[0018] The glue applicator includes a base and first and second slit nozzles mounted on the base. The inner side of each of the first and second slit nozzles is provided with multiple longitudinal distribution chambers and the outer surface is set as an arc surface. After installation, the multiple longitudinal distribution chambers form multiple glue supply channels and the outer surface is formed as a cylindrical surface. The multiple glue supply channels are connected to the corresponding multiple glue chambers on the base.

[0019] The glue supply mechanism includes a glue supply box and glue supply pipes connected to the glue supply box. Multiple glue supply pipes are provided, each connected to multiple glue cavities on the base. Each glue supply pipe is equipped with an independent control valve to control the flow of glue. By controlling the flow of multiple glue supply pipes independently, glue is applied to the splicing paper tape according to the set glue pattern to form corresponding glued and non-glued areas.

[0020] The self-cleaning mechanism includes a water tank, a flexible mesh brush positioned below the water surface, and nozzles positioned on the side of the water tank. When cleaning the first and second slit nozzles of the adhesive application head is required, the base is rotated to move the first and second slit nozzles from the adhesive application station to the cleaning station. The relative motion between the rotating base and the stationary flexible mesh brush is used to brush the surfaces of the first and second slit nozzles. To enhance the cleaning effect, the flexible mesh brush can be appropriately tensioned to increase friction. In addition, the water flow from the nozzles washes away the dirt on the surfaces of the first and second slit nozzles, thus cleaning away the residual wet adhesive and the hardened stubborn adhesive residue on the surfaces of the first and second slit nozzles, achieving self-cleaning.

[0021] The speed-changing mechanism includes at least one shaped roller, and a first partition roller and a second partition roller located at the input and output ends of the shaped roller; the shaped roller has a triangular, quadrilateral, or hexagonal cross-section; the output end of the second partition roller is connected to the input end of the transfer roller, and the transfer roller surface is provided with axial grooves at intervals, the distance between the axial grooves is equal to the distance between the protruding sharp corners or edges of the shaped roller, the transfer roller is mated with the blade roller, and the blade roller surface is provided with axial blades at intervals, the distance between the blades is equal to the distance between the axial grooves on the transfer roller surface;

[0022] The rotation of the shaped roller slows down or pauses the splicing paper tape wound on it when it rotates to a protruding sharp corner or edge, so that the splicing paper tape is passed intermittently. This provides an opportunity for the blade on the cutter roller to cut the splicing paper tape on the transfer roller. The rotation of the shaped roller automatically controls the speed of the splicing paper tape, making it easy to cut the splicing paper tape into splicing paper sheets, which are then used to wrap the filter rod and cigarette.

[0023] The first and second partition rollers are designed to keep the direction of the splicing paper tape unchanged in the pre-gluing mechanism and the subsequent cutting position, so as to ensure stable gluing quality of the splicing paper tape and accurate cutting into splicing paper pieces.

[0024] The technical advantages of this invention are as follows: Through the traction mechanism and the guiding and correcting mechanism, the splicing paper tape maintains the required speed, tension, and center position. The gluing mechanism then applies glue stably, continuously, and accurately to the splicing paper tape according to a set pattern. Simultaneously, a self-cleaning mechanism cleans the slit nozzles, improving the gluing quality. A speed-changing mechanism enables intermittent conveying of the splicing paper tape, providing the cutting opportunity for the blades on the subsequent cutting rollers to cut the splicing paper tape on the transfer rollers. This facilitates precise cutting of the splicing paper tape into splicing paper sheets, which are then used to wrap the filter tip and cigarette together, improving cigarette quality, reducing waste rate, and increasing enterprise profits. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 , Figure 3 A structural diagram of the guide roller of the guiding mechanism;

[0027] Figure 4 This is a schematic diagram of a slit nozzle structure;

[0028] Figure 5 This is a schematic diagram of the gluing mechanism;

[0029] Figure 6 This is a schematic diagram of the speed change mechanism;

[0030] Figure 7 This is a schematic diagram of the paper tape being sliced ​​for splicing. Detailed Implementation

[0031] To make the technical solution of the splicing paper tape gluing device clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] like Figure 1 As shown, the continuous gluing and speed control device for packaging tape provided by the present invention includes a traction mechanism 1, a guide and correction mechanism 2, a gluing mechanism 3, and a speed change mechanism 4 connected in sequence.

[0033] The traction mechanism 1 is used to control the running speed and running tension of the paper tape during the traction and splicing process.

[0034] The guide and correction mechanism 2 is used to control the centering of the paper tape during the operation of the paper tape and prevent the center of the paper tape from shifting.

[0035] The gluing mechanism 3 is used to apply glue to the splicing paper tape according to a set pattern during the splicing process and to perform self-cleaning.

[0036] The speed change mechanism 4 is used to control the speed of the splicing paper tape during its operation, so as to facilitate the subsequent cutting of the splicing paper tape into rectangular splicing paper pieces.

[0037] in:

[0038] The traction mechanism 1 includes an active roller 11, a pressure roller 12 in contact with the active roller 11, and a pressure regulator. The active roller 11 is driven to rotate by a power machine (not shown in the figure), which in turn drives the pressure roller to rotate synchronously under the action of friction. This causes the front side of the input splicing paper tape to pass over the active roller 11 first, and then the back side to pass over the pressure roller 12. Thus, the splicing paper tape is pulled to run under the action of friction between the active roller 11 and the pressure roller 12.

[0039] The rotational speed of the drive roller 11 is adapted to the running speed of the feeding paper tape; the axial length of the pressure roller 12 is greater than the width of the feeding paper tape, so that after the drive roller 11 and the pressure roller 12 come into contact, the feeding paper tape is kept between the two rollers.

[0040] The drive roller 11 is a rigid wheel that does not generate compression force, ensuring the accurate running speed of the splicing paper tape 5; the pressure roller 12 is an elastic roller, such as a rubber roller or a composite material roller, to increase friction.

[0041] The pressure roller is connected to a pressure regulator, which includes: a connecting frame 13 connected at one end to both ends of the roller shaft of the pressure roller 12; the other end of the connecting frame 13 is hinged to a hinge shaft 16; one side of the connecting frame 13 is connected to one end of a spring 14; the other end of the spring 14 is connected to a screw 15; and the screw 15 is screwed to a fixing nut. This allows the screw 15 to be manipulated as needed to adjust the spring force of the spring 14, thereby adjusting the swing angle of the pressure roller 12 around the hinge shaft 16, so that the pressure roller 12 presses against the drive roller 11, preventing slippage between the two rollers, thus completing the frictional traction of the splicing paper tape, meeting actual production needs, and adjusting the clamping force in a timely manner after changing the specifications of the splicing paper tape or after long-term operation.

[0042] The guiding and correcting mechanism 2 includes a guiding and correcting roller 23, and a first auxiliary roller 21 and a second auxiliary roller 22 that enable the feeding paper tape 5 to form a sufficient wrap angle with the guiding and correcting roller 23; so that after the feeding paper tape 5 is introduced by the first auxiliary roller 21, it wraps around the guiding and correcting roller 23 with a certain wrap angle α, which is in the range of 120°-180°, and then is led out by the second auxiliary roller 22.

[0043] The guide roller 23 includes: a roller 231 with an inner shaft cavity, the roller 231 being rotatably mounted on a bushing 233 within the shaft cavity via front and rear bearings 232 within the shaft cavity, causing the roller 231 to rotate with the bearings 232; the bushing 233 having a shaft hole, and a U-shaped retainer 236 connected to the inner end of the bushing 233; the U-shaped retainer 236 being hinged to the slider 242 via a pin 237; and the outer end of the bushing 233 being in rolling connection with a spherical bushing 234 within its shaft hole, the spherical bushing 234 being fitted onto a fixed rod 235 at the center of the shaft hole, thus connecting the bushing 233 outside the spherical bushing 234 to the shaft center of the roller 231. The slider 242 is screwed to the lead screw 243 through its internal horizontal screw hole. The lead screw 243 is connected to the output shaft of the correction motor 24, so that the forward and reverse rotation of the correction motor 24 drives the lead screw 243 to rotate synchronously. As the slider 242 screwed to the lead screw 243 reciprocates along the lead screw 243, under the action of the spherical bearing 234, the U-shaped bracket 236, the bushing 233, and the roller 231 swing slightly around the pin 237, forming a β-angle swing along the central axis. This causes the center of the receiving paper tape 5 on the guide correction roller 23 to move accordingly, ensuring that the center position of the receiving paper tape 5 does not deviate. Figure 1 , Figure 2 , Figure 3 As shown, this process then completes the correction of the spliced ​​paper tape.

[0044] A detection element 25 is provided on the feeding paper tape running path between the guide correction roller 23 and the second auxiliary roller 22. The detection element 25 is connected to the controller signal. At the same time, the controller is electrically connected to the correction motor 24 of the guide correction roller 23. The controller is a conventional control device so that when the detection element 25 detects that the feeding paper tape has deviated during the feeding paper tape operation, it sends the deviation signal to the controller. The controller issues a command to start the correction motor 24 to drive the lead screw 243 to rotate. At the same time, the slider 242 moves along the lead screw 243. Under the action of the spherical bearing 234, the U-shaped bracket 236, the bushing 233, and the roller 231 swing around the pin shaft 237 at a β angle to correct the deviated feeding paper tape to the correct position.

[0045] The gluing mechanism 3 is an existing structure, which includes a gluing head 31, a self-cleaning mechanism 32 and a glue supply mechanism 34 that are connected to the gluing head 31; wherein:

[0046] The glue applicator 31 is a conventional component, which includes a base 313 and first and second slit nozzles 311 and 312 mounted on the base 313. The inner side of each of the first and second slit nozzles 311 and 312 is provided with eight longitudinal distribution chambers and the outer surface is set as arc surfaces a and b. After installation, the eight longitudinal distribution chambers form eight glue supply channels and the outer surface forms a cylindrical surface. The eight glue supply channels are connected to the corresponding eight glue chambers on the base 313.

[0047] The glue supply mechanism 34 is a conventional mechanism, which includes a glue supply box 34 and glue supply pipes 33 connected to the glue supply box 34. There are eight glue supply pipes 33, which are respectively connected to eight glue chambers on the base 131. Each glue supply pipe 33 is equipped with an independent control valve to control the flow of glue. In order to apply glue to the splicing paper tape according to the set glue pattern 51 by controlling the flow of the eight glue supply pipes 33, the corresponding glued area and glueless area are formed.

[0048] The self-cleaning mechanism 32 includes a water tank, a flexible mesh brush 322 disposed below the water surface in the water tank, and a nozzle 323 disposed on the side of the water tank. When it is necessary to clean the first and second slit nozzles 311 and 312 of the glue application head 31, the base 313 is rotated to move the first and second slit nozzles 311 and 312 from the glue application station to the cleaning station. The relative motion between the rotating base 313 and the stationary flexible mesh brush 322 is used to brush the surfaces of the first and second slit nozzles 311 and 312. In order to enhance the cleaning effect, on the one hand, the flexible mesh brush 322 can be appropriately tensioned to increase the friction. On the other hand, the water flow γ sprayed by the nozzle 323 is used to rinse the dirt on the surfaces of the first and second slit nozzles 311 and 312. In this way, the wet glue and the dried stubborn glue residue on the surfaces of the first and second slit nozzles 311 and 312 are cleaned away, thus achieving self-cleaning.

[0049] The speed change mechanism 4 includes at least one irregularly shaped roller 42, and a first partition roller 41 and a second partition roller 43 located at the input and output ends of the irregularly shaped roller 42.

[0050] The cross-section of the irregularly shaped roller 42 is triangular, quadrilateral, or hexagonal;

[0051] The output end of the second partition roller 43 is connected to the input end of the transfer roller 71. The roller surface of the transfer roller 71 is provided with axial grooves at intervals. The distance between the axial grooves is equal to the distance between the protruding sharp corners or edges of the shaped roller 42. The transfer roller 71 is connected to the cutter roller 72. The roller surface of the cutter roller 72 is provided with axial blades at intervals. The distance between the blades is equal to the distance between the axial grooves on the transfer roller 71.

[0052] The rotation of the shaped roller 42 causes the splicing paper tape 5 wound on it to slow down or stop when it rotates to the protruding sharp corner or edge, so that the splicing paper tape 5 is passed intermittently, thereby providing the cutting opportunity for the blade on the cutter roller 72 to cut the splicing paper tape on the transfer roller 71. The speed of the splicing paper tape is automatically adjusted by the rotation of the shaped roller 42, so as to accurately cut the splicing paper tape 5 into splicing paper pieces 52, which are convenient for wrapping the filter rod and cigarette with the splicing paper pieces 52.

[0053] The first partition roller 41 and the second partition roller 43 are set to keep the direction of the splicing paper tape 5 unchanged in the front gluing mechanism 4 and the subsequent cutting position, so as to ensure that the gluing quality of the splicing paper tape 5 is stable and the cutting into splicing paper pieces 52 is accurate.

[0054] Obviously, the cross-sectional shape of the irregular roller 42 is not limited to triangle, quadrilateral, or hexagon;

[0055] The number of protrusions n of the irregular roller 42 is related to the rotation angle. The irregular roller 42 overlaps after rotating 360° / n (n=2,3,4,…). At the same time, the number of protrusions n of the irregular roller 42 is related to the cutting frequency of the splicing paper tape. That is, when the irregular roller 42 rotates 360° / n, the splicing paper tape is cut once. Figure 5 (a) and (b) are cross-sectional shapes of different irregular rollers 42 in this device. The cross-sectional shapes of different irregular rollers 42 are all rotationally symmetrical, that is, they coincide after rotating 360° / n. In (a), the cross-section of irregular roller 42′ is approximately triangular, with three evenly distributed protrusions A′, B′, and C′. When irregular roller 42′ rotates once, the paper tape 5 is cut three times. In (b), the cross-section of irregular roller 42″ is approximately quadrilateral, with four evenly distributed protrusions A″, B″, C″, and D″. When irregular roller 42″ rotates once, the paper tape 5 is cut four times, and each protrusion position is the time point when the transfer roller 71 and the cutter wheel 72 cooperate to cut.

Claims

1. A continuous adhesive application and speed control device for packaging tape, characterized in that... include: The traction mechanism is used to control the running speed and tension of the paper tape during the traction and splicing process. The guide and correction mechanism is used to control the centering of the paper tape during the operation of the paper tape and prevent the center of the paper tape from deviating. The gluing mechanism is used to apply glue to the splicing paper tape according to a set pattern during the splicing process and to perform self-cleaning. The speed change mechanism is used to control the speed of the splicing paper tape during its operation, so as to facilitate the subsequent cutting of the splicing paper tape into rectangular splicing paper pieces. The guiding and correcting mechanism includes at least one guiding and correcting roller, and at least two symmetrical first and second auxiliary rollers that form a sufficient wrap angle between the splicing paper tape and the guiding and correcting roller, wherein: The guide correction roller includes: a roller with an inner shaft cavity, the roller being rotatably mounted on a bushing inside the shaft cavity via front and rear bearings within the shaft cavity, causing the roller to rotate with the bearings; a shaft hole is provided inside the bushing, and a U-shaped retainer is connected to the inner end of the bushing; the U-shaped retainer is hinged to the slider via a pin; the outer end of the bushing is rolledly connected to a spherical bushing inside its shaft hole; the spherical bushing is fitted onto a fixed rod at the center of the shaft hole, so that the shaft center of the bushing outside the spherical bushing coincides with that of the roller; the slider is screwed to a lead screw through a horizontal screw hole inside it; and the lead screw is connected to the output shaft of the correction motor.

2. The continuous gluing and speed control device for packaging tape according to claim 1, characterized in that... The traction mechanism includes at least one drive roller and a pressure roller in contact with the drive roller. The axial length of the pressure roller is greater than the width of the paper tape being fed. The pressure roller is configured as an elastic roller.

3. The continuous gluing and speed control device for packaging tape according to claim 2, characterized in that... The pressure roller is connected to a pressure regulator, which includes: a connecting frame with one end connected to both ends of the pressure roller shaft, the other end of the connecting frame being hinged to a hinge shaft, one side of the connecting frame being connected to one end of a spring, the other end of the spring being connected to a screw, and the screw being screwed to a fixing nut.

4. The continuous gluing and speed control device for packaging tape according to claim 1, characterized in that... A detection element is provided on the paper tape running path between the guide correction roller and the second auxiliary roller. The detection element is connected to the controller signal, and the controller is electrically connected to the correction motor of the guide correction roller.

5. The continuous gluing and speed control device for packaging tape according to claim 1, characterized in that... The gluing mechanism includes a gluing head, a self-cleaning mechanism and a gluing supply mechanism mating with the gluing head; wherein: The glue applicator includes a base and first and second slit nozzles mounted on the base. The inner side of each of the first and second slit nozzles is provided with multiple longitudinal distribution chambers and the outer surface is set as an arc surface. After installation, the multiple longitudinal distribution chambers form multiple glue supply channels and the outer surface is formed as a cylindrical surface. The multiple glue supply channels are connected to the corresponding multiple glue chambers on the base. The glue supply mechanism includes a glue supply box, a glue supply pipe connected to the glue supply box, and multiple glue supply pipes, which are respectively connected to multiple glue cavities on the base. Each glue supply pipe is equipped with an independent control valve. The self-cleaning mechanism includes a water tank, a flexible mesh brush disposed below the water surface in the tank, and nozzles disposed on the side of the water tank. When it is necessary to clean the first and second slit nozzles of the glue application head, the base is rotated to move the first and second slit nozzles from the glue application station to the cleaning station. The relative motion between the rotating base and the stationary flexible mesh brush is used to brush the surfaces of the first and second slit nozzles. To enhance the cleaning effect, the flexible mesh brush can be appropriately tensioned to increase friction, and the water flow sprayed from the nozzles can rinse the dirt on the surfaces of the first and second slit nozzles.

6. The continuous gluing and speed control device for packaging tape according to claim 1, characterized in that... The speed change mechanism includes at least one irregularly shaped roller, and a first partition roller and a second partition roller located at the input and output ends of the irregularly shaped roller; the cross-section of the irregularly shaped roller is triangular, quadrilateral, or hexagonal.

7. The continuous gluing and speed control device for packaging tape according to claim 6, characterized in that... The output end of the second partition roller is connected to the input end of the transfer roller. The transfer roller surface is provided with axial grooves at intervals. The distance between the axial grooves is equal to the distance between the sharp corners or edges of the irregular roller. The transfer roller is connected to the cutter roller. The cutter roller surface is provided with axial blades at intervals. The distance between the blades is equal to the distance between the axial grooves on the transfer roller surface.

Images