Handheld adhesive tape machine capable of freely adjusting gap width

Abstract

The invention belongs to the technical field of sealing-tape machines, and particularly relates to a handheld sealing-tape machine capable of freely adjusting gap width, which comprises a shell, one side of the shell is provided with an adjusting assembly for automatically adjusting when the vertical surface of a carton is packaged, and a pair of movable conveying rollers is arranged in the shell. One side of the shell is further provided with an auxiliary assembly used for driving the pair of conveying rollers to conduct gap adjustment, the adjusting assembly comprises a rotatable pressing roller, the interior of the pressing roller is fixedly connected with a rotating rod, and the two ends of the rotating rod are fixedly connected with movable rings. Therefore, when the vertical face of the carton and the bent corner of the vertical face of the carton are subjected to adhesive tape attaching, the adhesive tape makes full contact with the carton, the situation that after the adhesive tape is attached to the carton, the edge warping phenomenon or the infirm attaching phenomenon occurs is avoided, the carton packaging effect can be effectively improved, and the effect that the adhesive tape is attached to the surface of the carton is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of adhesive tape machines, in particular to a handheld adhesive tape machine with freely adjustable gap width. Background Art

[0002] A handheld tape dispenser is a small, portable tape packaging tool, mainly used for sealing and packaging cartons, parcels, etc. Due to its compactness, flexibility and easy operation, it is widely used in logistics, e-commerce, retail, households and other scenarios.

[0003] In the current existing technology, handheld tape dispensers are usually composed of a tape reel mounting component, a cutting device, a pressure roller, etc. The pressure roller makes the tape adhere tightly to the surface of the packaged object, ensuring good adhesion and achieving a firm seal to prevent the object from getting damp and contamination. When using a handheld tape dispenser to seal cartons in the logistics industry, it is usually necessary to seal the vertical surface of the carton. However, due to the special items placed inside the carton, the carton can only be in an upright state. When the staff uses the handheld tape dispenser to seal the vertical surface of the carton, when the pressure roller presses the tape to the vertical corner of the tape, the pressure roller may not be able to completely adhere to the vertical surface of the carton due to external factors (for example: the pressing force applied to the pressure roller is uneven, resulting in a shift in the center of gravity; or one side of the pressure roller is suspended when passing the vertical corner of the carton), resulting in the tape and the carton being unable to be effectively bonded, thereby reducing the bonding effect of the tape and the carton. For this reason, the present invention provides a handheld tape dispenser with freely adjustable gap width. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: a handheld tape dispenser with freely adjustable gap width comprises a housing, one side of which is provided with an adjustment component for automatically adjusting the vertical surface of a carton when sealing the carton, a pair of movable conveyor rollers are provided inside the housing, and one side of the housing is further provided with an auxiliary component for driving the pair of conveyor rollers to adjust the gap; The adjustment assembly includes a rotatable pressure roller, the interior of the pressure roller is fixedly connected to a rotating rod, both ends of the rotating rod are fixedly connected to movable rings, the outer surface of the movable ring is movably clamped with a connecting sleeve, and the connecting sleeve is movably connected to the shell.

[0006] Preferably, the auxiliary component includes a pair of extrusion plates that can move up and down, and an arc plate that moves synchronously with the extrusion plate is provided above the extrusion plate. A connecting column is in sliding contact between the arc plate and the extrusion plate, and the connecting column is fixedly connected to one side of the two conveying rollers.

[0007] Preferably, the adjustment assembly also includes a wedge block slidably arranged on one side of the outer shell, the interior of the wedge block is slidably connected to a sliding rod, the surface of the sliding rod is rotatably connected to a push rod, a sliding groove is provided inside the wedge block at the sliding position of the sliding rod, one side of the push rod is fixedly connected to a rack, and the rack is slidably connected to the outer shell.

[0008] Preferably, the auxiliary component also includes a sliding plate slidably arranged on one side of the outer shell, a moving column is fixedly connected to the top of the sliding plate, a fixed ring is fixedly connected to the surface of the moving column, one end of the two extrusion plates is fixedly connected to the surface of the fixed ring, the arc plate is fixedly installed on the upper end of the moving column, the connecting column is slidably connected to the outer shell, and the lower surface of the sliding plate is slidably connected to one end of the rack.

[0009] Preferably, the interior of the shell is also configured with a gain component for cooperating with the auxiliary component to adjust the gap between the two conveying rollers, and the gain component includes an incomplete gear, which is meshed with the rack, and the interior of the incomplete gear is fixedly connected to a transmission rod, one end of the transmission rod is fixedly connected to a matching roller, and the interior of the matching roller is slidably connected to two top plates.

[0010] Preferably, a pushing block is fixedly connected to the surface of the transmission rod, and the pushing block is convexly arranged, and the surface of the pushing block is in sliding contact with a swing plate, and the swing plate is rotatably connected to the fixed shell through a pin shaft, and an adjusting roller is rotatably connected to one side of the swing plate, and a sliding slot is provided at the position where the pushing block and the swing plate are in sliding contact.

[0011] Preferably, the transmission rod is rotatably connected to the housing, one end of the mating roller is rotatably connected to a mounting cover, the mounting cover is detachably connected to the housing, and one end of the adjusting roller slides in an arc groove opened inside the mounting cover.

[0012] Preferably, an auxiliary roller is provided below the mating roller, and the auxiliary roller is rotatably connected to the shell. A mounting plate is provided on one side of the shell, and a tape roll is mounted on the mounting plate. A handle is also fixedly connected to one side of the shell.

[0013] Preferably, a cutting plate for cutting the tape is provided inside the shell, a limiting roller is provided on the shell directly below the tape roll, the arc plate is arranged in an M shape, and the arc plate and the extrusion plate are slidably connected to the fixed shell.

[0014] Preferably, an arc groove is provided on the surface of the mating roller, the top plate slides at the position of the arc groove provided on the surface of the mating roller, and one end of the transmission rod is rotatably connected to the inner surface of the fixed shell.

[0015] The beneficial effects of the present invention are as follows: 1. The handheld tape dispenser with freely adjustable gap width described in the present invention, through the coordinated arrangement of the adjustment component and the auxiliary component, can ensure that the tape is in full contact with the carton when laminating the vertical surface and the curved corners of the vertical surface of the carton, thereby avoiding the situation where the tape warps or is not firmly adhered after being lamination to the carton, and can effectively improve the effect of packaging the carton and improve the effect of laminating the tape to the surface of the carton.

[0016] 2. The handheld tape dispenser with freely adjustable gap width described in the present invention can further improve the tape lamination on the vertical surface or vertical corners of the carton through the setting of the gain component. After the tape changes its own characteristics, it can still effectively adhere to the carton, thereby further improving the effect of carton packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention with the installation cover removed; Figure 3 This is a schematic diagram of the internal structure of the present invention with part of the fixed shell removed; Figure 4 It is a schematic diagram of the internal structure of the present invention; Figure 5 It is a structural diagram of the regulating component in the present invention; Figure 6 Schematic diagram of the internal structure of the wedge in the present invention; Figure 7 In the present invention Figure 6 Exploded diagram; Figure 8 It is a structural diagram of the auxiliary components in the present invention; Figure 9 is a first motion state diagram of the auxiliary component in the present invention; Figure 10 is a second motion state diagram of the auxiliary component in the present invention; Figure 11 It is a schematic structural diagram of the gain component in the present invention; Figure 12 In the present invention Figure 11 Motion state diagram; Figure 13 It is a structural schematic diagram of the matching roller and the top plate in the present invention.

[0019] In the figure: 1. Shell; 2. Tape roll; 3. Mounting cover; 4. Handle; 5. Conveyor roller; 6. Adjustment assembly; 601. Pressure roller; 602. Rotating rod; 603. Connecting sleeve; 604. Movable ring; 605. Wedge block; 606. Push rod; 607. Rack; 608. Sliding rod; 7. Gain assembly; 701. Incomplete gear; 702. Transmission rod; 703. Push block; 704. Swing plate; 705. Adjustment roller; 706. Matching roller; 707. Top plate; 8. Fixed shell; 9. Cutting plate; 10. Auxiliary assembly; 1001. Sliding plate; 1002. Moving column; 1003. Fixed ring; 1004. Arc plate; 1005. Extrusion plate; 1006. Connecting column; 11. Auxiliary roller. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 7 As shown, a handheld tape dispenser with freely adjustable gap width according to an embodiment of the present invention includes a housing 1, one side of which is provided with an adjustment component 6 for automatically adjusting the vertical surface of a carton when sealing. A pair of movable conveying rollers 5 are provided inside the housing 1, and one side of the housing 1 is further provided with an auxiliary component 10 for driving the pair of conveying rollers 5 to adjust the gap. The adjustment component 6 includes a rotatable pressure roller 601, the interior of the pressure roller 601 is fixedly connected to a rotating rod 602, both ends of the rotating rod 602 are fixedly connected to movable rings 604, the outer surface of the movable ring 604 is movably connected to a connecting sleeve 603, and the connecting sleeve 603 is movably connected to the shell 1.

[0022] The present invention takes into account that when the staff uses the tape machine to seal the vertical surface of the carton, especially for some cartons full of goods, the carton can only be stood up for vertical sealing, so that the cover plate above the carton and the vertical surface of the carton can be completely sealed. In actual work, the tape needs to be passed between a pair of conveyor rollers 5 and then guided to the bottom of the pressure roller 601. When the tape needs to be pasted on the vertical surface of the carton, the tape machine may be in a tilted state in the hands of the staff. At this time, the pressure roller 601 will be in a tilted state and contact with the vertical surface of the carton, and will not be completely tightly attached to the surface of the carton. At this time, even after applying pressure to the pressure roller 601, the tape will not be completely tightly attached to the vertical surface of the carton, which will cause the tape to be unable to effectively adhere to the vertical surface of the carton, and the tape is prone to warping or curling, affecting the effect of the tape being adhered to the vertical surface of the carton. Therefore, by fixing the rotating rod 602 inside the pressure roller 601, fixing two movable rings 604 at both ends of the rotating rod 602, and then movably installing the movable ring 604 inside the connecting sleeve 603, and then installing the connecting sleeve 603 inside the shell 1, and a buffer spring is provided between the shell 1, when the tape machine is pressed to make the pressure roller 601 contact the vertical surface of the carton, the pressure roller 601 will tilt inside the shell 1 under the action of the pressing force. When the pressure roller 601 tilts, the pressure roller 601 will drive the two movable rings 604 to move inside the connecting sleeve 603 through the rotating rod 602, so that the pressure roller 601 and the rotating rod 602 are tilted, so that the axis of the pressure roller 601 is perpendicular to the horizontal line of the vertical surface. When the vertical surface of the carton is adhered with tape, the tape will also be in full contact with the vertical surface of the carton under the action of the pressure roller 601, so that it can better adhere to the vertical surface of the carton. It should be noted that when the pressure roller 601 is pressed and is in full contact with the vertical surface of the carton, the pressure roller 601 and the rotating rod 602 will be in an inclined state. Since the connecting sleeve 603 and the shell 1 are movably connected, and the movable ring 604 and the connecting sleeve 603 are movably clamped, the movable ring 604 will move inside the connecting sleeve 603 to adapt to the tilt angle of the rotating rod 602, so that the pressure roller 601 on the surface of the rotating rod 602 can always be in contact with the vertical surface of the carton, and when the movable ring 604 is inside the connecting sleeve 603, the pressure roller 601 on the surface of the rotating rod 602 can always be in contact with the vertical surface of the carton. During the activity, the connecting sleeve 603 will also be squeezed to a certain extent by the shape-changing extrusion force of the movable ring 604. At this time, the connecting sleeve 603 will also undergo certain changes inside the shell 1. At this time, by arranging two sets of buffer springs on the surface of the connecting sleeve 603, it is possible to effectively avoid stress interference between the pressure roller 601 and the vertical surface of the carton during the contact process, causing the pressure roller 601 to be unable to rotate, so that the pressure roller 601 can effectively roll and press the tape, so that the tape is tightly attached to the vertical surface of the carton, which can effectively improve the fitting quality of the tape.

[0023] like Figures 4 and 5 As shown, the auxiliary component 10 includes a pair of extrusion plates 1005 that can move up and down, and an arc plate 1004 is arranged above the extrusion plate 1005 to move synchronously with it. There is a connecting column 1006 in sliding contact between the arc plate 1004 and the extrusion plate 1005, and the connecting column 1006 is fixedly connected to one side of the two conveying rollers 5.

[0024] The present invention also takes into account that when the tape machine is in an inclined state and the pressing roller 601 is in full contact with the vertical surface of the carton, the pressing roller 601 will be in an inclined state and in full contact with the vertical surface of the carton. When the adhesive tape is conveyed to the bottom of the pressing roller 601 by a pair of conveyor rollers 5 and then adhered to the vertical surface of the carton, the adhesive tape may be twisted under the force of the tilt of the pressing roller 601. At this time, after the adhesive tape is twisted, its surface may not be able to effectively contact the surfaces of the two conveyor rollers 5, which will cause the two conveyor rollers 5 to be unable to effectively convey the adhesive tape. At the same time, both sides of the adhesive tape may also have uneven contact with the surfaces of the conveyor rollers 5. When the adhesive tape is in contact with the vertical surface of the carton for a long time, the continuous contact between the adhesive tape and the surface of the conveyor roller 5 may cause wear on both sides of the adhesive tape, affecting the quality of the final adhesion to the vertical surface of the carton, or causing the side of the adhesive tape adhered to the vertical surface of the carton to be warped or have burrs, affecting the effect of the adhesive tape and the carton adhesion. Therefore, first install the conveying roller 5 inside the shell 1, and then install the two connecting columns 1006 on one side of the conveying roller 5. When the pressure roller 601 changes, the two extrusion plates 1005 and the arc plate 1004 can be driven to move up and down. It should be noted that after the pressure roller 601 contacts the vertical surface of the carton, due to the different contact positions, the inclination directions of the pressure roller 601 and the rotating rod 602 may also be different. At this time, the different inclination directions of the pressure roller 601 can drive the extrusion plate 1005 to move up and down, and because the extrusion plate 1005 is inclined and there is an angle, when the extrusion plate 1005 rises, it will squeeze the connecting column 1006 through the upper surface. The pressure causes the connecting post 1006 and the conveying roller 5 on one side to move relative to each other, thereby increasing the gap between the two conveying rollers 5. Moreover, since the arc plate 1004 is arranged in an arc shape, when the extrusion plate 1005 pushes the connecting post 1006 to move relative to each other, the inclined surface of the arc plate 1004 will always be in contact with the surface of the connecting post 1006. At this time, the arc plate 1004 can limit the connecting post 1006, thereby adjusting the gap between the connecting post 1006 and the two conveying rollers 5 on one side to increase. When the gap between the two conveying rollers 5 increases, it can avoid the static friction coefficient between the bent tape and the conveying roller 5 from decreasing, thereby protecting both sides of the tape and improving the quality of the subsequent tape laminating on the vertical surface of the carton. It should be noted that, since there are usually multiple corners on the vertical surface of the carton, when the pressure roller 601 moves to the corner position of the vertical surface of the carton when laminating the tape, and at this time the tape is in a twisted state under the action of the pressure roller 601, and at this time the pressure roller 601 will move from the vertical surface of the carton to the corner of the vertical surface of the carton, resulting in a different contact position. At this time, when the pressure roller 601 contacts the corner of the vertical surface of the carton, the pressure roller 601 will change its tilt direction, thereby driving the arc plate 1004 and the extrusion plate 1005 to move downward. At this time, the arc plate 1004 and the extrusion plate 1005 will move downward synchronously, and The inner side of the arc plate 1004 is also arranged in an arc shape. At this time, the downward movement of the arc plate 1004 can make the two connecting columns 1006 move relative to each other. The squeezing force of the inner arc surface of the arc plate 1004 makes the gap between the two conveying rollers 5 smaller, so that the surface of the conveying roller 5 is in close contact with the surface of the adhesive tape, which can not only effectively offset the torsional force of the adhesive tape and prevent the adhesive tape from being deformed, but also ensure that the adhesive tape is stably conveyed to the position of the pressure roller 601. After being rolled by the pressure roller 601, the tape is quickly and completely in contact with the curved corner of the vertical surface of the carton, thereby improving the lamination effect at the curved corner position of the vertical surface of the carton; It should be noted again that when the arc plate 1004 moves upward and downward, the extrusion plate 1005 cooperates with the arc plate 1004, so that the inner arc surface of the arc plate 1004 contacts the connecting column 1006, thereby reducing the gap between the two conveying rollers 5. When the extrusion plate 1005 moves upward and downward, the arc plate 1004 and the extrusion plate 1005 cooperate again, so that the surface of the extrusion plate 1005 can stably apply extrusion force to the connecting column 1006, and the pusher moves relative to each other again, so that the gap between the two conveying rollers 5 becomes larger, which can effectively improve the effect of the tape being adhered to the vertical surface of the carton and the bending corner of the vertical surface of the carton, and can stably adjust the gap between the conveying rollers 5, which can not only protect the tape and prevent the tape from being adhered to the vertical surface of the carton after being worn on both sides, but also make the tape stably and accurately adhere to the bending corner of the vertical surface of the carton, thereby effectively improving the quality of the tape adhesion.

[0025] like Figures 5 to 7 As shown, the adjustment component 6 also includes a wedge block 605 slidably arranged on one side of the shell 1, the interior of the wedge block 605 is slidably connected to a sliding rod 608, the surface of the sliding rod 608 is rotatably connected to a push rod 606, a sliding groove is provided inside the wedge block 605 at the sliding position of the sliding rod 608, and a rack 607 is fixedly connected to one side of the push rod 606, and the rack 607 is slidably connected to the shell 1.

[0026] During operation, when the pressure roller 601 contacts the vertical surface or the vertical corner of the carton, the pressure roller 601 changes its tilting direction and drives the wedge block 605 to move up and down. The movement of the wedge block 605 squeezes the push rod 606 on the surface of the sliding rod 608 through the internal sliding groove, so that the push rod 606 reciprocates in the tilting direction. In addition, a return spring is provided on the surface of the push rod 606. When the push rod 606 slides on one side of the shell 1, the push rod 606 will be pressed by the force of the return spring and the double force of the sliding rod 608. Under the action of gravity, the push rod 606 is always in contact with the inner inclined surface of the wedge block 605. At this time, the up and down movement of the wedge block 605 can drive the push rod 606 to reciprocate. It should be noted that the return spring not only ensures that one end of the push rod 606 is always in contact with the wedge block 605, but also improves the stability of the push rod 606 when it moves back and forth, so that the push rod 606 can move smoothly, making it easier for the rack 607 on one side of the push rod 606 to drive the auxiliary component 10 to move, thereby further improving the stability when adjusting the gap between the two conveyor rollers 5. It should be noted that, by providing a hinge ball at one end of the rotating rod 602, and the hinge ball is hingedly connected to the side of the wedge block 605, when the rotating rod 602 changes its tilt direction, the rotating rod 602 can stably apply force to the wedge block 605 through the hinge ball, so that the wedge block 605 can stably move up and down, and there will be no interference between the rotating rod 602 and the wedge block 605, and by setting the sliding rod 608 and the push rod 606 to be rotatably connected, when the sliding rod 608 slides inside the slide groove opened inside the wedge block 605, the sliding rod 608 will rely on friction to rotate during the sliding process, which can enable the push rod 606 to slide more smoothly inside the slide groove, thereby further smoothly driving the auxiliary component 10 to stably adjust the gap between the two conveying rollers 5.

[0027] like Figure 1 and Figures 8 to 10 As shown, the auxiliary component 10 also includes a sliding plate 1001 slidably arranged on one side of the outer shell 1, a moving column 1002 is fixedly connected to the top of the sliding plate 1001, a fixed ring 1003 is fixedly connected to the surface of the moving column 1002, one end of the two extrusion plates 1005 is fixedly connected to the surface of the fixed ring 1003, the arc plate 1004 is fixedly installed on the upper end of the moving column 1002, the connecting column 1006 is slidably connected to the outer shell 1, and the lower surface of the sliding plate 1001 is slidably connected to one end of the rack 607.

[0028] When working, when the wedge block 605 moves up and down to push the push rod 606 to perform reciprocating motion, the push rod 606 will drive the rack 607 to also perform reciprocating motion in the inclined direction. Since one end of the rack 607 is slidably connected to the sliding plate 1001, the rack 607 movement can push the sliding plate 1001 to perform reciprocating motion up and down, and the sliding plate 1001 can drive the moving column 1002 to reciprocate up and down, and the moving column 1002 drives the fixed ring 1003 to reciprocate up and down. At this time, the moving column 1002 and the fixed ring 1003 can drive the arc plate 1004 and the extrusion plate 1005 to also reciprocate up and down synchronously, so that the up and down motion of the arc plate 1004 and the extrusion plate 1005 can adjust the gap between the two conveyor rollers 5, so that the adhesive tape attached to the vertical surface of the carton and the curved corner of the vertical surface of the carton can fully contact with it, which can effectively improve the quality of the tape bonding; It should be noted that when the rack 607 reciprocates, one end of the rack 607 will push the sliding plate 1001 to move up and down while sliding on the lower surface of the sliding plate 1001, so that the sliding plate 1001 can smoothly reciprocate up and down, and since a return spring is provided on the surface of the push rod 606, when the sliding plate 1001 reciprocates, the return spring can effectively improve the stability of the up and down reciprocating motion of the sliding plate 1001, so that the arc plate 1004 and the extrusion plate 1005 can stably adjust the gap between the two conveyor rollers 5, thereby improving the quality of the tape adhering to the carton.

[0029] like Figures 11 to 13 As shown, the interior of the housing 1 is also configured with a gain component 7 for cooperating with the auxiliary component 10 to adjust the gap between the two conveying rollers 5. The gain component 7 includes an incomplete gear 701, which is meshed with the rack 607. The interior of the incomplete gear 701 is fixedly connected to a transmission rod 702, and one end of the transmission rod 702 is fixedly connected to a matching roller 706. The interior of the matching roller 706 is slidably connected to two top plates 707.

[0030] The present invention also fully considers that when the rack 607 slides on the side of the shell 1 toward the sliding plate 1001, the rack 607 will push the arc plate 1004 and the extrusion plate 1005 to move upward. At this time, the arc plate 1004 and the extrusion plate 1005 will move upward, which will cause the gap between the two conveyor rollers 5 to become larger. In order to avoid the gap between the two conveyor rollers 5 becoming larger, the tape cannot effectively contact the surfaces of the two conveyor rollers 5, which may cause the tape to shake or shift in position, resulting in the tape being unable to accurately fit the vertical surface of the carton. Therefore, when the rack 607 moves back and forth, the incomplete gear 701 engaged with the transmission rotates clockwise (such as Figure 11As shown in the figure, the rotation of the incomplete gear 701 drives the transmission rod 702 to rotate, and the rotation of the transmission rod 702 drives the matching roller 706 and the top plate 707 inside it to rotate clockwise. At this time, after the clockwise rotation, the top plate 707 fully contacts both sides of the tape, and can squeeze the tape passing through the matching roller 706 to a certain extent, so that the top plate 707 fully contacts the surface of the tape, which can increase the tension of the tape, so that the tape can be stably transported to the position of the pressure roller 601, and then stably and accurately adhered to the vertical surface of the carton by the pressure roller 601; It should be noted that since a compression spring is provided between the top plate 707 and the mating roller 706, when the top plate 707 rotates clockwise and its surface is fully in contact with the tape, even if the tape shakes during transportation, the top plate 707 will always be in contact with the surface of the tape under the reverse force of the compression spring, so that the tape can always be transported smoothly.

[0031] like Figures 11 to 13 As shown, a push block 703 is fixedly connected to the surface of the transmission rod 702, and the push block 703 is convexly arranged. The surface of the push block 703 is in sliding contact with a swing plate 704, and the swing plate 704 is rotatably connected to the fixed shell 8 through a pin shaft. An adjusting roller 705 is rotatably connected to one side of the swing plate 704, and a sliding slot is provided at the position where the push block 703 and the swing plate 704 are in sliding contact.

[0032] During operation, in the initial state, the position where the swing plate 704 and the push block 703 are in sliding contact is located in the concave part of the push block 703, and the push block 703 is convex. When the transmission rod 702 rotates clockwise to drive the push block 703 to rotate, the rotation of the push block 703 will push the swing plate 704 to swing counterclockwise around the pin shaft through the shorter position of the side protrusion (such as Figure 11 As shown in the figure, the swinging plate 704 swings, which drives the adjusting roller 705 on one side to swing as well, so that the adjusting roller 705 moves away from the back of the tape, which can increase the gap between the adjusting roller 705 and the tape, thereby improving the efficiency of laminating the tape to the vertical surface of the carton, and allowing the tape to be quickly laminar to the vertical surface of the carton; It should be noted that when the cooperating roller 706 drives the top plate 707 to rotate counterclockwise, the surface of the top plate 707 will fully contact the tape, thereby adjusting the tension of the tape during transportation. At this time, in order to avoid the top plate 707 exerting a large force on the tape, causing instability after the tape tension is adjusted, since the push block 703 does not exert a large force on the swing plate 704 after rotating counterclockwise, the adjustment roller 705 on the side of the swing plate 704 will not be too far away from the back of the tape, and can also limit the position of the tape transportation to a certain extent, thereby improving the accuracy of the tape fitting after transportation, and avoiding the adjustment of the tape tension, which will affect the stability of the tape during transportation.

[0033] like Figures 11 to 13 As shown, the transmission rod 702 is rotatably connected to the housing 1, one end of the matching roller 706 is rotatably connected to the mounting cover 3, the mounting cover 3 and the housing 1 are detachably connected, and one end of the adjusting roller 705 slides in the arc groove opened inside the mounting cover 3.

[0034] The present invention further considers that when the rack 607 drives the arc plate 1004 and the extrusion plate 1005 to move downward, the gap between the two conveyor rollers 5 will become smaller, which means that the tape is being applied to the curved corner of the carton facade. At this time, the movement and meshing transmission of the rack 607 will drive the incomplete gear 701 to rotate counterclockwise, and the incomplete gear 701 will drive the push block 703 to rotate counterclockwise through the transmission rod 702. The push block 703 rotates and contacts one end of the swing plate 704, thereby pushing the swing plate 704 to rotate clockwise around the pin shaft through the sliding slot (such as Figure 11 As shown in the figure, the counterclockwise rotation of the swing plate 704 will drive one end of the adjusting roller 705 on one side to swing inside the mounting cover 3, so that the adjusting roller 705 is close to the position of the tape, reducing the gap between the adjusting roller 705 and the tape, and at this time the mating roller 706 will also rotate under the counterclockwise rotation of the transmission rod 702, so that the top plate 707 rotates to a position away from the tape, and the mating roller 706 will directly contact the tape, so that the position between the adjusting roller 705 and the mating roller 706 is also close, and at this time not only the gap between the surface of the tape and the two conveying rollers 5 is reduced, but also the gap between the tape and the adjusting roller 705 and the mating roller 706 during the conveying process is reduced, so that the tape can be fully and stably adhered to the curved corner position of the vertical surface of the carton, thereby improving the quality of tape adhesion.

[0035] like Figures 1 to 3 As shown, an auxiliary roller 11 is provided below the cooperating roller 706, and the auxiliary roller 11 is rotatably connected to the outer shell 1. A mounting plate is provided on one side of the outer shell 1, and a tape roll 2 is mounted on the mounting plate. A handle 4 is also fixedly connected to one side of the outer shell 1.

[0036] During operation, after the adhesive tape is conveyed to the positions of the adjusting roller 705 and the matching roller 706, one side of the adhesive tape will contact the auxiliary roller 11. Since the auxiliary roller 11 is rotatably connected to the shell 1, when the matching roller 706 drives the top plate 707 to rotate clockwise, the top plate 707 will fully contact the surface of the adhesive tape. At this time, in order to avoid the adjusting roller 705 being unable to completely limit the position of the adhesive tape after adjusting the tension, thereby causing the adhesive tape to be attached to the vertical surface of the carton to have an inaccurate attachment position, the auxiliary roller 11 can also limit the adhesive tape to a certain extent, so that the adhesive tape can be more stably conveyed to the position of the pressure roller 601, and then attached to the position of the vertical surface of the carton, which can further improve the accuracy of the adjusting roller 705 in limiting the position of the adhesive tape and improve the effect of adhesive tape attachment. It should be noted that when the tape needs to be adhered to the carton for packaging, the staff will hold the handle 4 tightly to make the tape machine work as a whole. At this time, the tape will be adhered to the vertical surface or the vertical corner of the carton under the action of the adjustment component 6, thereby completing the packaging of the carton.

[0037] like Figures 8 to 10 As shown, a cutting plate 9 for cutting the tape is provided inside the shell 1, a limiting roller is provided directly below the tape roll 2, the arc plate 1004 is arranged in an M shape, and the arc plate 1004 and the extrusion plate 1005 are slidably connected to the fixed shell 8.

[0038] During operation, after the packaging work of the carton is completed, the tape can be cut by the cutting plate 9. This part is the existing technology and the present invention will not go into details here. Before the tape is introduced from the tape roll 2 into the interior of the shell 1, the tape is first passed through the position of the two limiting rollers so that the tape passes accurately between the two conveyor rollers 5. At this time, the stability of the conveyor roller 5 in transmitting the tape can be effectively improved, and the position offset of the tape can be avoided, which affects the subsequent adhesion of the tape to the vertical surface of the carton or the curved corner position of the vertical surface. It should be noted that by setting the arc plate 1004 to an M shape, when the arc plate 1004 moves back and forth up and down, it can not only squeeze the two connecting columns 1006 to reduce the gap between the conveyor rollers 5, but also cooperate with the extrusion plate 1005 to move, so as to avoid the extrusion plate 1005 being unable to effectively squeeze the connecting column 1006, which can further improve the stability of the gap adjustment between the two conveyor rollers 5.

[0039] like Figures 11 to 13 As shown, an arc groove is opened on the surface of the matching roller 706, and the top plate 707 slides at the position of the arc groove opened on the surface of the matching roller 706. One end of the transmission rod 702 is rotatably connected to the inner surface of the fixed shell 8.

[0040] During operation, when the cooperating roller 706 rotates clockwise, the cooperating roller 706 will drive the top plate 707 to rotate. At this time, the cooperating roller 706 will contact the tape, thereby reducing the gap between the tape and the adjusting roller 705 and the cooperating roller 706, so that the tape can be fitted stably and accurately to the corner of the vertical surface of the carton. When the cooperating roller 706 rotates counterclockwise, the top plate 707 can adjust the tension of the tape. At this time, the tape will be transported between the two conveying rollers 5 with a larger gap, which can avoid the torque generated when the tape is fitted to the vertical surface of the carton at this time affecting the normal conveying of the tape by the conveying roller 5, and can further improve the conveying effect of the conveying roller 5 on the tape, and improve the quality of the subsequent tape being fitted to the carton for packaging.

[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A handheld tape dispenser with freely adjustable gap width, characterized by: The invention comprises a shell (1), one side of the shell (1) is provided with an adjustment component (6) for automatically adjusting the vertical surface of the carton when packaging, a pair of movable conveying rollers (5) are provided inside the shell (1), and one side of the shell (1) is further provided with an auxiliary component (10) for driving the pair of conveying rollers (5) to adjust the gap; The adjustment assembly (6) comprises a rotatable pressure roller (601), the interior of the pressure roller (601) is fixedly connected to a rotating rod (602), both ends of the rotating rod (602) are fixedly connected to movable rings (604), the outer surface of the movable ring (604) is movably engaged with a connecting sleeve (603), and the connecting sleeve (603) is movably connected to the housing (1).

2. The handheld tape dispenser with freely adjustable gap width according to claim 1, characterized in that: The auxiliary component (10) comprises a pair of extrusion plates (1005) that can move up and down, an arc plate (1004) that moves synchronously with the extrusion plates (1005) is provided above the extrusion plates (1005), a connecting column (1006) is in sliding contact between the arc plate (1004) and the extrusion plates (1005), and the connecting column (1006) is fixedly connected to one side of the two conveying rollers (5).

3. The handheld tape dispenser with freely adjustable gap width according to claim 1, characterized in that: The adjustment assembly (6) further includes a wedge block (605) slidably arranged on one side of the housing (1); the interior of the wedge block (605) is slidably connected to a sliding rod (608); the surface of the sliding rod (608) is rotatably connected to a push rod (606); a sliding groove is provided in the interior of the wedge block (605) at a sliding position of the sliding rod (608); a rack (607) is fixedly connected to one side of the push rod (606); and the rack (607) is slidably connected to the housing (1).

4. The handheld tape dispenser with freely adjustable gap width according to claim 2, characterized in that: The auxiliary component (10) further comprises a sliding plate (1001) slidably arranged on one side of the housing (1); a moving column (1002) is fixedly connected to the top of the sliding plate (1001); a fixing ring (1003) is fixedly connected to the surface of the moving column (1002); one end of the two extrusion plates (1005) is fixedly connected to the surface of the fixing ring (1003); the arc plate (1004) is fixedly mounted on the upper end of the moving column (1002); the connecting column (1006) is slidably connected to the housing (1); and the lower surface of the sliding plate (1001) is slidably connected to one end of the rack (607).

5. The handheld tape dispenser with freely adjustable gap width according to claim 1, characterized in that: The interior of the housing (1) is further provided with a gain component (7) for cooperating with the auxiliary component (10) to adjust the gap between the two conveying rollers (5). The gain component (7) comprises an incomplete gear (701), wherein the incomplete gear (701) is meshingly connected to the rack (607), a transmission rod (702) is fixedly connected to the interior of the incomplete gear (701), one end of the transmission rod (702) is fixedly connected to a matching roller (706), and the interior of the matching roller (706) is slidably connected to two top plates (707).

6. The handheld tape dispenser with freely adjustable gap width according to claim 5, characterized in that: A push block (703) is fixedly connected to the surface of the transmission rod (702), and the push block (703) is arranged in a convex shape. A swing plate (704) is slidably contacted on the surface of the push block (703). The swing plate (704) is rotatably connected to the fixed shell (8) via a pin shaft. An adjusting roller (705) is rotatably connected to one side of the swing plate (704). A sliding slot is provided at a position where the push block (703) and the swing plate (704) are in slidable contact.

7. The handheld tape dispenser with freely adjustable gap width according to claim 6, characterized in that: The transmission rod (702) is rotatably connected to the housing (1), one end of the matching roller (706) is rotatably connected to the mounting cover (3), the mounting cover (3) is detachably connected to the housing (1), and one end of the regulating roller (705) slides in an arc groove provided inside the mounting cover (3).

8. The handheld tape dispenser with freely adjustable gap width according to claim 5, characterized in that: An auxiliary roller (11) is provided below the mating roller (706), and the auxiliary roller (11) is rotatably connected to the housing (1). A mounting plate is provided on one side of the housing (1), and a tape roll (2) is mounted on the mounting plate. A handle (4) is also fixedly connected to one side of the housing (1).

9. The handheld tape dispenser with freely adjustable gap width according to claim 2, characterized in that: A cutting plate (9) for cutting the adhesive tape is provided inside the housing (1), a limiting roller is provided on the housing (1) directly below the adhesive tape roll (2), the arc plate (1004) is provided in an M-shape, and the arc plate (1004) and the extrusion plate (1005) are in sliding connection with the fixed housing (8).

10. The handheld tape dispenser with freely adjustable gap width according to claim 5, characterized in that: An arc groove is provided on the surface of the mating roller (706), and the top plate (707) slides at the position of the arc groove provided on the surface of the mating roller (706). One end of the transmission rod (702) is rotatably connected to the inner surface of the fixed shell (8).

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