Multifunctional handheld tape carton sealer

Abstract

The multifunctional hand-held tape carton sealer comprises a handle angle conversion device and a slope ring pushing device arranged on the handle, the slope ring pushing device is connected to the tape cutting device, and the tape cutting device is driven to work through the slope ring pushing device. After the sealing is completed, the finger pulls the trigger inward, and the fan-shaped teeth at the upper end of the trigger push the slope ring through the gear rack linkage device and the rack, and the inclined guide piece on the outer wall of the slope ring moves forward to cooperate with the lower arms of the left and right groups of scissor arms of the tape cutting device. Under the guiding action of the inclined guide piece, the left and right lower arms are respectively spread outward, so that the upper arms of the left and right groups of scissor arms rotate inward, the upper arm of one group drives the blade mounting seat and the blade to rotate inward, and the upper arm of the other group drives the shear seat to rotate inward, so that the tape is cut smoothly and the tape is easy to cut.

Description

Technical Field

[0001] The invention relates to a tape carton sealer, in particular to a multifunctional handheld tape carton sealer. Background Art

[0002] With the development of fresh vegetable and fruit transportation and express delivery industry, various heat preservation and moisture-retaining disposable foam boxes and express delivery items with special shapes need to be packed and sealed before transportation. The tape sealing device is divided into a handheld tape sealer and a tape sealer. The tape sealer is not suitable for ordinary users due to its large size, complex structure and high manufacturing cost, while the handheld tape sealer is widely used due to its simple structure, small size and low manufacturing cost. The existing handheld tape sealer has a simple structure and a single function. The disadvantages are: 1. When there are special sealing requirements for various positive sealing, horizontal sealing (side sealing), oblique sealing and winding sealing, it is necessary to change the posture of holding the sealer according to the sealing angle, which is inconvenient to operate and affects the sealing efficiency; 2. After the sealing is completed, there is no structure for cutting the tape, and the hand needs to pull the tape hard to make the tape be torn off at the blade position; 3. The tape leader after being torn off does not have a fixed structure, and the tape leader is easy to be re-pasted to the tape surface, and it is not easy to find the tape leader when it is used next time. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a multifunctional handheld tape carton sealer that can quickly achieve front sealing, horizontal sealing, oblique sealing and wrapping sealing, and is convenient for cutting the tape after completing the carton sealing, and the cut tape leader is fixed for convenience of next use. The device has a simple structure and is easy to operate.

[0004] The technical scheme of the multifunctional hand-held tape carton sealer of the present invention is as follows: it comprises a handle, a handle angle conversion device and a slope ring pushing device are arranged on the handle, the slope ring pushing device is connected to the tape cutting device, the handle angle conversion device comprises a connecting seat, the connecting seat is rotatably connected to the upper part of the handle via a pin, swing rods are respectively arranged on the outer walls on the left and right sides of the connecting seat, the middle part of the swing rod is rotatably connected to the connecting seat via a pin, a first spring is arranged between one end of the swing rod and the connecting seat, a hook is formed on the other end of the swing rod, through holes are formed on both sides of the connecting seat, upper adjustment holes and The lower adjusting groove, the hook passes through the through hole and is clamped with the upper adjusting hole or the lower adjusting groove. The inclination ring pushing device includes a trigger, which is rotatably connected to the handle through a pin. The upper part of the trigger is provided with a fan-shaped tooth and a pull hook, the pull hook is connected to one end of the tension spring, and the other end of the tension spring is connected to the inside of the handle. A gear rack linkage device is arranged in the handle, one side of the gear rack linkage device cooperates with the fan-shaped tooth, a rack is arranged in the connecting seat, and the rack cooperates with the gear rack linkage device. A connecting shaft is arranged on the front side of the connecting seat, and the head of the connecting shaft is connected to the fixed shaft, and the fixed shaft is connected to the connecting seat through a fastener. The connecting shafts are fixed, and the other end of the fixed shaft is provided with a baffle, a tape mounting seat is arranged on the outer walls of the connecting shaft and the fixed shaft, a tape roll is sleeved on the outer wall of the tape mounting seat, one side of the tape mounting seat is connected to the fixed plate, the baffle is in limited contact with the end face of the other side of the tape mounting seat, a sleeve is arranged in the tape mounting seat, the sleeve is rotatably matched with the connecting shaft and the fixed shaft, a slope ring is sleeved on the outer wall of the sleeve, the slope ring is limitedly matched with the sleeve, one end of the slope ring is in contact with the rack, a second spring is arranged between the other end of the slope ring and the inner wall of the end face of the tape mounting seat, an inclined guide piece is arranged on the outer wall of the slope ring, and the The tape cutting device includes two groups of left and right scissor arms, which are symmetrical to each other. The scissor arms include an upper arm and a lower arm, a transverse rotating shaft is formed between the upper and lower arms, a rotating shaft seat is formed on the inner wall of the tape mounting seat, a card slot is formed on the rotating shaft seat, the transverse rotating shaft and the card slot are rotatably matched, and the lower arm is matched with the inclined guide piece of the bevel ring. The upper end of the upper arm of one group of scissor arms is connected to the blade mounting seat, and a blade is arranged in the blade mounting seat. The upper end of the upper arm of the other group of scissor arms is connected to the shearing seat, a torsion spring is arranged between the shearing seat and the blade mounting seat, and the blade cooperates with the tape and the shearing seat.

[0005] The invention discloses a multifunctional hand-held adhesive tape carton sealer, which mainly comprises a handle and an adhesive tape mounting seat. The adhesive tape roll is sleeved on the adhesive tape mounting seat. A handle angle conversion device and an inclination ring pushing device are connected between the handle and the adhesive tape mounting seat. A adhesive tape cutting device is arranged in the adhesive tape mounting seat. The adhesive tape cutting device is driven to work by the inclination ring pushing device. When in use, the adhesive tape leader is first pulled out from the adhesive tape roll, passes through the gap between the blade and the shearing seat, and is pasted on the surface of the package to be sealed. Then, the handle is held by hand to drive the adhesive tape carton sealer to move along the sealing position. The adhesive tape mounting seat follows the rotation movement, so that the pulled-out adhesive tape can be pasted along the sealing position. After the sealing is completed, the trigger is pulled inward by the finger, and the trigger is wound around the pin. Rotate, so that the fan-shaped teeth at the upper end of the trigger drive the gear rack linkage device to rotate synchronously, the gear rack linkage device drives the rack to move forward, the rack pushes the slope ring of the slope ring pushing device forward, an oblique guide piece is formed on the outer wall of the slope ring, the oblique guide piece moves forward and cooperates with the lower arms of the left and right groups of scissor arms of the tape cutting device, under the guiding action of the oblique guide piece, the left and right lower arms are respectively spread outward, and the transverse rotating shaft of the scissor arm rotates around the slot of the rotating shaft seat, so that the upper arms of the left and right groups of scissor arms rotate inward, the upper arm of one group drives the blade mounting seat and the blade to rotate inward, and the upper arm of the other group drives the shear seat to rotate inward, finally the blade and the shear seat shear the tape between the two, so that the tape is cut smoothly, and the tape can be cut quickly and at any time The tape can be cut easily; in addition, when performing the carton sealing operation, the handle angle can be switched according to the shape of the package and the form of sealing (such as front sealing, horizontal sealing, oblique sealing, and wrapping sealing). When performing horizontal sealing (i.e., sealing the side of the package horizontally), the handle is bent downward, and the handle and the direction in which the tape is pulled out of the tape mounting seat are horizontal or nearly horizontal. The hand holds the handle horizontally, and the corresponding tape mounting seat and the tape roll are also horizontal. At this time, the horizontally output tape can seal the side of the package. When sealing the package directly above, obliquely sealing the package, or wrapping the package (i.e., cylindrical packaging) is to be performed, the left and right side swing rods are located at one end of the first spring and are pressed inwardly with fingers. One end of the swing rod presses the first spring inward, while the other end of the swing rod presses the first spring inward. The handle is then rotated to a position perpendicular to the direction in which the tape is pulled out of the tape mounting seat, and the hook of the swing arm corresponds to the lower adjusting grooves on both side walls of the handle. The swing arm is then released with the fingers, and the first spring pushes one end of the swing arm outward under the action of the restoring force, and the other end of the swing arm passes through the perforation inward around the pin and is inserted into the lower adjusting groove, so that the handle and the tape mounting seat remain in a vertical state, and the corresponding tape roll is also in a vertical state with the handle. At this time, the operation is smoother when the package is sealed straight, obliquely, or wrapped. The handle angle of this structure is convenient to convert to meet different forms of box sealing operations.

[0006] The multifunctional handheld tape carton sealer of the present invention comprises a first pinion, a second pinion and a large gear, one side of the first pinion meshes with the sector gear, the other side of the first pinion meshes with the second pinion, the side wall of the second pinion is fixed with the large gear, and the large gear meshes with the rack. When people pull the trigger, the sector gear at the upper end of the trigger drives the first pinion to rotate, the first pinion drives the second pinion to rotate in the opposite direction, the second pinion drives the large gear to rotate synchronously, and the large gear drives the rack to move forward.

[0007] The connecting seat is provided with a slide rail, which matches the back of the rack. With the connecting seat and the slide rail, the rack can be guided to move forward and backward, ensuring that the rack moves accurately without deviation.

[0008] A pressing block is arranged in the blade mounting seat, and the pressing block contacts the tape and the shearing seat. The blade mounting seat drives the blade and the pressing block to move synchronously. When the blade cuts the tape, the pressing block simultaneously presses the remaining tape leader, so that the tape leader is pressed and adhered to the shearing seat, thereby preventing the tape leader from retracting into the tape roll, which is conducive to people pulling out the tape leader when using it next time.

[0009] The middle part of the shear seat is provided with an arc groove. After the adhesive tape is cut, the end of the adhesive tape leader is flush with the end of the shear seat, which is not conducive to the finger touching the adhesive tape leader. With the arc groove, the finger can be inserted into the arc groove to contact the adhesive tape leader, which is conducive to pulling out the adhesive tape leader.

[0010] A mounting ring is provided between the connecting shaft and the fixed shaft, and one or more brake pads are formed on the mounting ring. A positioning hole is formed on the inner wall corresponding to the sleeve of the tape mounting seat, and the brake pad is inserted into the positioning hole. A convex arc is formed on the outer wall of the brake pad, and the upper end of the convex arc exposes the positioning hole. The inner wall of the slope ring cooperates with the convex arc. Brake grooves are evenly distributed on the outer wall of the fixed shaft, and the inner wall of the brake pad passes through the positioning hole and cooperates with the brake groove. A mounting ring is provided between the connecting shaft and the fixed shaft, and the mounting ring is rotationally matched with the connecting shaft and the fixed shaft, and a brake pad is formed on the mounting ring, and the brake pad is inserted into the positioning hole of the sleeve. Therefore, when the tape mounting seat and the sleeve rotate in the sealing box, the sleeve drives the brake pad and the mounting ring to rotate synchronously through the positioning hole, and the connecting shaft and the fixed shaft are fixed to the connecting seat under the action of the fastener and remain motionless. When people pull the trigger, the trigger drives the slope ring to move forward through the slope ring pushing device, and the slope ring pushing device drives the tape cutting device to cut the tape on the one hand. The tape is sheared, and at the same time, the inner wall of the slope ring contacts the convex arc of the outer wall of the brake pad. The brake pad is guided by the convex arc and stuck inward into the brake groove of the fixed shaft. Since the fixed shaft does not rotate, the brake pad and the sleeve and positioning hole matched therewith also stop rotating. The sleeve drives the tape mounting seat to stop rotating, thereby ensuring that the tape mounting seat does not rotate when the tape is sheared, making the tape easier to cut (if the tape mounting seat keeps rotating when the tape is sheared, the tape will be pulled out further, thereby affecting the shearing).

[0011] The outer wall of one side of the tape mounting seat is provided with a mounting groove, a third spring and a limit plate are arranged in the mounting groove, elastic hooks are arranged on both sides of the limit plate, the elastic hooks are in contact with the tape mounting seat at the lower end of the mounting groove, and the limit plate is in contact with the side wall of the tape roll. The limit plate can limit the side of the tape roll on the tape mounting seat to prevent the tape roll from falling out from the side, and when the tape roll is to be replaced, the limit plate can be pressed inwardly with a finger, the limit plate is retracted into the mounting groove, and the tape roll can be taken out, and when the finger releases the limit plate, the third spring pushes the limit plate outward to reset under the action of the restoring force, and the limit plate hooks the lower end wall of the mounting groove through the elastic hook to prevent the limit plate from falling out of the mounting groove.

[0012] The tape mounting seat is provided with a slide groove, a slide plate is arranged in the slide groove, a semi-arc-shaped anti-return plate is provided on the slide plate, and the anti-return plate contacts the inner wall of the tape roll. The semi-arc-shaped anti-return plate has one side in an arc shape and the other side tilted upward, and the tilted side is stuck on the inner wall of the tape roll to prevent the tape roll from rotating in reverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of a state in which the handle of the multifunctional handheld tape carton sealer of the present invention and the tape pulling direction in the tape installation seat are in horizontal cooperation;

[0014] Figure 2It is a three-dimensional schematic diagram of a state in which the handle of the multifunctional handheld tape carton sealer of the present invention is vertically matched with the tape pulling direction in the tape installation seat;

[0015] Figure 3 It is a structural schematic diagram of the multifunctional handheld tape carton sealer of the present invention;

[0016] Figure 4 It is a three-dimensional schematic diagram of the exploded state of the multifunctional handheld adhesive tape carton sealer of the present invention;

[0017] Figure 5 It is a three-dimensional schematic diagram of the coordination state of the handle, trigger, gear rack linkage device and rack;

[0018] Figure 6 It is a three-dimensional schematic diagram of the handle angle conversion device;

[0019] Figure 7 It is a three-dimensional schematic diagram of the exploded state of the handle angle conversion device;

[0020] Figure 8 It is a three-dimensional schematic diagram of the matching state of the tape mounting seat, the slope ring, the scissor arm, the blade mounting seat, and the shear seat;

[0021] Fig. 9 is a three-dimensional schematic diagram of the tape mount;

[0022] Fig.10 It is a three-dimensional schematic diagram of the exploded state of the tape mounting seat, the limit plate, and the anti-return plate;

[0023] Fig.11 It is a three-dimensional schematic diagram of the matching state of the bevel ring, the scissor arm, the blade mounting seat, and the shear seat;

[0024] Fig.12 It is a three-dimensional schematic diagram of the shear seat;

[0025] Fig.13 It is a three-dimensional schematic diagram of the matching state of the bevel ring, the brake pad, and the brake groove of the fixed shaft;

[0026] Fig.14 It is a three-dimensional schematic diagram of the side sealing state of the multifunctional handheld tape carton sealer;

[0027] Fig.15 It is a three-dimensional schematic diagram of the multifunctional handheld tape carton sealer in the sealing state. DETAILED DESCRIPTION

[0028] The present invention relates to a multifunctional handheld adhesive tape carton sealing device, such as Figure 1 — Fig.15As shown, it includes a handle 1, on which a handle angle conversion device and a slope ring pushing device are arranged, the slope ring pushing device is connected to the tape cutting device, the handle angle conversion device includes a connecting seat 21, the connecting seat is rotatably connected to the upper part of the handle through a pin, swing rods 22 are respectively arranged on the outer walls of the left and right sides of the connecting seat, the middle part of the swing rod is rotatably connected to the connecting seat through a pin, a first spring 23 is arranged between one end of the swing rod and the connecting seat, a hook 24 is formed at the other end of the swing rod, through holes 25 are formed on both sides of the connecting seat, upper adjustment holes 26 and lower adjustment grooves 27 are formed on both sides of the upper part of the handle, the hook passes through the through hole and the upper adjustment hole or the lower adjustment hole The grooves of the sections are clamped together. The inclination ring pushing device includes a trigger 31, which is rotatably connected to the handle 1 through a pin. The upper part of the trigger is provided with a sector tooth 32 and a draw hook 33, the draw hook is connected to one end of a tension spring 34, and the other end of the tension spring is connected to the inside of the handle. A gear rack linkage device is provided in the handle 1, and one side of the gear rack linkage device cooperates with the sector tooth 32. A rack 35 is provided in the connecting seat 21, and the rack cooperates with the gear rack linkage device. A connecting shaft 36 is provided on the front side of the connecting seat 21, and the head of the connecting shaft is connected to a fixed shaft 37, which is fixed to the connecting shaft through a fastener, and a stopper is provided on the other end of the fixed shaft. Plate 38, a tape mounting seat 39 is arranged on the outer wall of the connecting shaft and the fixed shaft, a tape roll 40 is sleeved on the outer wall of the tape mounting seat, one side of the tape mounting seat is connected to the fixed plate 41, the baffle 38 is in limited contact with the end face of the other side of the tape mounting seat, a sleeve 42 is formed in the tape mounting seat, the sleeve is rotatably matched with the connecting shaft and the fixed shaft, a slope ring 43 is sleeved on the outer wall of the sleeve, the slope ring is limitedly matched with the sleeve, one end of the slope ring is in contact with the rack 35, and a second spring 44 is arranged between the other end of the slope ring and the inner wall of the end face of the tape mounting seat 39, and an inclined guide piece 45 is formed on the outer wall of the slope ring. The tape cutting device includes left and right two A group of scissor arms, the left and right groups of scissor arms are symmetrical to each other, the scissor arms include an upper arm 51 and a lower arm 52, a transverse rotating shaft 53 is formed between the upper and lower arms, a rotating shaft seat 54 is formed on the inner wall of the tape mounting seat 39, a card slot 55 is formed on the rotating shaft seat, the transverse rotating shaft and the card slot are rotatably matched, the lower arm 52 is matched with the inclined guide piece 45 of the bevel ring 43, the upper end of the upper arm 51 of one group of scissor arms is connected to the blade mounting seat 56, and a blade 57 is arranged in the blade mounting seat, and the upper end of the upper arm of the other group of scissor arms is connected to the shearing seat 58, a torsion spring 59 is arranged between the shearing seat and the blade mounting seat, and the blade cooperates with the tape and the shearing seat. It mainly comprises a handle 1 and a tape mounting seat 39, a tape roll 40 is sleeved on the tape mounting seat 39, a handle angle conversion device and a slope ring pushing device are connected between the handle 1 and the tape mounting seat 39, a tape cutting device is arranged in the tape mounting seat, and the tape cutting device is driven to work by the slope ring pushing device. When in use, the tape leader is first pulled out from the tape roll 40, and passes through the gap between the blade 57 and the shear seat 58, and the tape leader is pasted on the surface of the package to be sealed, and then the handle 1 is held by hand,The tape carton sealer is driven to move along the sealing position, and the tape mounting seat 39 follows the rotational movement, so that the pulled-out tape can be pasted along the sealing position. After the sealing is completed, the trigger 31 is pulled inward by the finger, and the trigger rotates around the pin, so that the fan-shaped teeth 32 at the upper end of the trigger drive the gear rack linkage device to rotate synchronously, and the gear rack linkage device drives the rack 35 to move forward, and the rack pushes the slope ring 43 of the slope ring pushing device forward. An inclined guide piece 45 is formed on the outer wall of the slope ring. The inclined guide piece moves forward and cooperates with the lower arms 52 of the left and right groups of scissor arms of the tape cutting device. Under the guiding action of the inclined guide piece 45, the left and right lower arms 52 are respectively spread outward, and the lateral rotation of the scissor arm The shaft 53 rotates around the slot 55 of the rotating shaft seat 54, so that the upper arms 51 of the left and right groups of scissor arms rotate inwards, the upper arms 51 of one group drive the blade mounting seat 56 and the blade 57 to rotate inwards, and the upper arms 51 of the other group drive the shear seat 58 to rotate inwards, and finally the blade 57 and the shear seat 58 shear the tape between the two, so that the tape is smoothly cut, and the tape can be cut quickly and at any time, and the tape is easy to cut; in addition, when performing the box sealing operation, the angle of the handle 1 can be switched according to the shape of the package and the form of the box sealing (such as straight sealing, horizontal sealing, oblique sealing, and winding sealing). When performing horizontal sealing (i.e., sealing the side of the package horizontally), the handle 1 is bent downward, and the handle and the tape are in contact. The tape pulling direction in the tape mounting seat 39 is horizontal or nearly horizontal, and the hand holds the handle 1 horizontally, and the corresponding tape mounting seat 39 and tape roll 40 are also in a horizontal state. At this time, the horizontally output tape can be used to seal the side of the package. When it is necessary to seal the package directly above, obliquely, or wrap the package (i.e., cylindrical packaging), the left and right side swing rods 22 are pressed inwardly with fingers at one end of the first spring 23. One end of the swing rod 22 presses the first spring 23 inward, and the other end of the swing rod rotates outward around the pin, and the hook 24 at the other end disengages from the upper adjustment hole 26 on the upper part of the handle 1 and the through hole 25 on the side wall of the connecting seat 21. At this time, the handle 1 can be connected to the connecting seat 21 around the pin. The handle 1 is rotated between the seats 21, and when the handle is rotated to be perpendicular to the tape pulling direction in the tape mounting seat 39, the hook 24 of the swing rod 22 corresponds to the lower adjustment groove 27 on the two side walls of the handle 1, and then the finger releases the swing rod 22, and the first spring 23 pushes one end of the swing rod to reset outward under the action of the restoring force, and the other end of the swing rod 22 passes through the through hole 25 inward around the pin and is stuck in the lower adjustment groove 27, so that the handle 1 and the tape mounting seat 39 are kept in a vertical state, and the corresponding tape roll 40 is also in a vertical state with the handle 1. At this time, when the package is sealed straight, obliquely, or wrapped, the operation is more convenient. The handle 1 of this structure is easy to convert the angle to meet different forms of box sealing operations. The gear rack linkage device includes a first pinion 46, a second pinion 47 and a large gear 48. One side of the first pinion meshes with the sector tooth 32, and the other side of the first pinion meshes with the second pinion 47. The side wall of the second pinion is fixed to the large gear 48, and the large gear meshes with the rack 35. When people pull the trigger 31,The fan-shaped teeth 32 at the upper end of the trigger drive the first pinion 46 to rotate, the first pinion drives the second pinion 47 to rotate in the opposite direction, the second pinion drives the large gear 48 to rotate synchronously, and the large gear drives the rack 35 to move forward. The connecting seat 21 is provided with a slide rail 28, which cooperates with the back of the rack 35. With the connecting seat 21 and the slide rail 28, the forward and backward movement of the rack 35 is guided to ensure that the rack moves accurately without offset. The blade mounting seat 56 is provided with a clamping block 60, which contacts the tape and the shearing seat 58. The blade mounting seat 56 drives the blade 57 and the clamping block 60 to move synchronously. When the blade cuts the tape, the clamping block simultaneously clamps the remaining tape leader, so that the tape leader is pressed and adhered to the shearing seat 58, thereby preventing the tape leader from retracting into the tape roll, which is conducive to people pulling out the tape leader when using it next time. The shearing seat 58 is provided with an arc groove 61 in the middle. After the tape is cut, the end of the tape leader is flush with the end of the shear seat 58, which is not conducive to the finger touching the tape leader. With the arc groove 61, the finger can be inserted into the arc groove 61 to contact the tape leader, which is conducive to pulling out the tape leader. A mounting ring 71 is arranged between the connecting shaft 36 and the fixed shaft 37, and one or more brake pads 72 are formed on the mounting ring. A positioning hole 82 is formed on the corresponding inner wall of the sleeve 42 of the tape mounting seat 39. The brake pad is inserted into the positioning hole, and the outer wall of the brake pad is formed with a convex arc 73, and the upper end of the convex arc is exposed from the positioning hole. The inner wall of the slope ring 43 cooperates with the convex arc, and the brake grooves 74 are evenly distributed on the outer wall of the fixed shaft. The inner wall of the brake pad passes through the positioning hole and cooperates with the brake groove. A mounting ring 71 is provided between the connecting shaft 36 and the fixed shaft 37, and the mounting ring is rotatably matched with the connecting shaft and the fixed shaft, and a brake pad 72 is formed on the mounting ring, and the brake pad is stuck in the positioning hole 82 of the sleeve 42. Therefore, when the tape mounting seat 39 and the sleeve 42 rotate in the sealing box, the sleeve drives the brake pad and the mounting ring 71 to rotate synchronously through the positioning hole, and the connecting shaft 36 and the fixed shaft 37 are fixed to the connecting seat under the action of the fastener and remain motionless. When people pull the trigger 31, the trigger drives the slope ring 43 to move forward through the slope ring pushing device, and the slope ring pushing device drives the tape The cutting device shears the tape, and at the same time, the inner wall of the slope ring 43 contacts the convex arc 73 of the outer wall of the brake pad 72. The brake pad is guided by the convex arc and inserted into the brake groove 74 of the fixed shaft. Since the fixed shaft does not rotate, the brake pad and the sleeve 42 and positioning hole 82 that match it also stop rotating. The sleeve drives the tape mounting seat 39 to stop rotating, thereby ensuring that the tape mounting seat will not rotate when the tape is cut, making the tape easier to cut (if the tape mounting seat keeps rotating when the tape is cut, it will drive the tape to continue to be pulled out, thereby affecting the cutting). The outer wall of one side of the tape mounting seat 39 is formed with a mounting groove 75, and a third spring 76 and a limit plate 77 are arranged in the mounting groove. Elastic hooks 78 are formed on both sides of the limit plate.The elastic hook contacts the tape mounting seat at the lower end of the mounting groove, and the limit plate contacts the side wall of the tape roll 40. The limit plate 77 can limit the side of the tape roll 40 on the tape mounting seat 39 to prevent the tape roll from slipping out from the side. When the tape roll 40 is to be replaced, the limit plate 77 can be pressed inwardly with a finger, and the limit plate is retracted into the mounting groove 75, and the tape roll can be taken out. When the finger releases the limit plate 77, the third spring 76 pushes the limit plate 77 to reset outward under the action of the restoring force, and the limit plate hooks the lower end wall of the mounting groove 75 through the elastic hook 78 to prevent the limit plate from slipping out of the mounting groove. The tape mounting seat 39 is provided with a slide groove 79, and a slide plate 80 is arranged in the slide groove. A semi-arc-shaped anti-return plate 81 is formed on the slide plate, and the anti-return plate contacts the inner wall of the tape roll 40. The semi-arc-shaped anti-reverse plate 81 has one side in an arc shape and the other side tilted upward, and the tilted side is stuck on the inner wall of the tape roll 40 to prevent the tape roll from rotating in the reverse direction.

Claims

1. Multifunctional handheld tape carton sealer, characterized by: The invention comprises a handle (1), on which a handle angle conversion device and a slope ring pushing device are arranged, the slope ring pushing device is connected to the tape cutting device, the handle angle conversion device comprises a connecting seat (21), the connecting seat is rotatably connected to the upper part of the handle via a pin, swing rods (22) are respectively arranged on the outer walls of the left and right sides of the connecting seat, the middle part of the swing rod is rotatably connected to the connecting seat via a pin, a first spring (23) is arranged between one end of the swing rod and the connecting seat, the other end of the swing rod is provided with a hook (24), both sides of the connecting seat are provided with through holes (25), upper adjustment holes (26) and lower adjustment grooves (27) are provided on both sides of the upper part of the handle, the hook passes through the through hole and is clamped with the upper adjustment hole or the lower adjustment groove, the slope ring pushing device comprises a trigger (31), the trigger pin is provided with a first spring (23) between one end of the swing rod and the connecting seat, the other end of the swing rod is provided with a hook (24), both sides of the connecting seat are provided with through holes (25), upper adjustment holes (26) and lower adjustment grooves (27) are provided on both sides of the upper part of the handle, the hook passes through the through hole and is clamped with the upper adjustment hole or the lower adjustment groove, and ... The trigger is rotatably connected to the handle (1), the upper part of the trigger is formed with a sector tooth (32) and a draw hook (33), the draw hook is connected to one end of a tension spring (34), the other end of the tension spring is connected to the inside of the handle, a gear rack linkage device is arranged in the handle (1), one side of the gear rack linkage device is matched with the sector tooth (32), a rack (35) is arranged in the connecting seat (21), the rack is matched with the gear rack linkage device, a connecting shaft (36) is formed on the front side of the connecting seat (21), the head of the connecting shaft is connected to the fixed shaft (37), the fixed shaft is fixed to the connecting shaft through a fastener, the other end of the fixed shaft is formed with a baffle (38), an adhesive tape mounting seat (39) is arranged on the outer wall of the connecting shaft and the fixed shaft, the outer wall of the adhesive tape mounting seat is covered with an adhesive tape roll (40), and the adhesive tape roll (40) is arranged on the outer wall of the adhesive tape mounting seat. One side of the tape mounting seat is connected to a fixed plate (41), and a baffle (38) is in limited contact with the end face of the other side of the tape mounting seat. A sleeve (42) is formed in the tape mounting seat, and the sleeve is rotatably matched with the connecting shaft and the fixed shaft. A slope ring (43) is sleeved on the outer wall of the sleeve, and the slope ring is limitedly matched with the sleeve. One end of the slope ring is in contact with the rack (35), and a second spring (44) is arranged between the other end of the slope ring and the inner wall of the end face of the tape mounting seat (39). An inclined guide plate (45) is formed on the outer wall of the slope ring. The tape cutting device comprises two left and right groups of scissor arms, and the two left and right groups of scissor arms are symmetrical to each other. The scissor arms comprise an upper arm (51) and a lower arm (52). A transverse rotating shaft (53) is formed between the upper and lower arms, and a second spring (44) is arranged between the other end of the slope ring and the inner wall of the end face of the tape mounting seat (39). The inner wall is provided with a rotating shaft seat (54), and a slot (55) is provided on the rotating shaft seat. The transverse rotating shaft is rotatably matched with the slot. The lower arm (52) is matched with the inclined guide piece (45) of the slope ring (43). The upper end of the upper arm (51) of one set of scissor arms is connected to the blade mounting seat (56), and a blade (57) is arranged in the blade mounting seat. The upper end of the upper arm of the other set of scissor arms is connected to the shear seat (58), and a torsion spring (59) is arranged between the shear seat and the blade mounting seat. The blade is matched with the tape and the shear seat. The gear rack linkage device comprises a first pinion (46), a second pinion (47) and a large gear (48). One side of the first pinion is meshed with the sector tooth (32), and the other side of the first pinion is meshed with the second pinion (47).The side wall of the second pinion is fixed to the large gear (48), the large gear is meshed with the rack (35), a pressing block (60) is arranged in the blade mounting seat (56), the pressing block is in contact with the adhesive tape and the shearing seat (58), and an arc-shaped groove (61) is formed in the middle of the shearing seat (58).

2. The multifunctional handheld tape carton sealer according to claim 1, characterized in that: The connecting seat (21) is provided with a slide rail (28), which cooperates with the back side of the rack (35).

3. The multifunctional handheld tape carton sealer according to claim 1, characterized in that: A mounting ring (71) is provided between the connecting shaft (36) and the fixed shaft (37), and one or more brake pads (72) are formed on the mounting ring. A positioning hole (82) is formed on the inner wall corresponding to the sleeve (42) of the tape mounting seat (39), and the brake pad is inserted into the positioning hole. A convex arc (73) is formed on the outer wall of the brake pad, and the upper end of the convex arc is exposed from the positioning hole. The inner wall of the slope ring (43) cooperates with the convex arc. Braking grooves (74) are evenly distributed on the outer wall of the fixed shaft, and the inner wall of the brake pad passes through the positioning hole and cooperates with the brake groove.

4. The multifunctional handheld tape carton sealer according to claim 1, characterized in that: The outer wall of one side of the tape mounting seat (39) is formed with a mounting groove (75), in which a third spring (76) and a limit plate (77) are arranged, and elastic hooks (78) are formed on both sides of the limit plate, the elastic hooks are in contact with the tape mounting seat at the lower end of the mounting groove, and the limit plate is in contact with the side wall of the tape roll (40).

5. The multifunctional handheld tape carton sealer according to claim 1, characterized in that: The tape mounting seat (39) is provided with a slide groove (79), a slide plate (80) is arranged in the slide groove, a semi-arc-shaped anti-return plate (81) is provided on the slide plate, and the anti-return plate contacts the inner wall of the tape roll (40).

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