A hand-held tape applicator

Abstract

The application discloses a handheld adhesive tape sticking device, which comprises a shell with a containing cavity and an adhesive tape outlet, an adhesive tape supporting wheel rotatably arranged in the containing cavity, a cutting mechanism with a cutting knife movably arranged in the containing cavity, a feeding roller shaft oppositely arranged with the cutting knife and rotatably arranged in the containing cavity and a driving mechanism, the cutting knife has a first position matched with the feeding roller shaft to cut the adhesive tape and a second position arranged with the feeding roller shaft, and the driving mechanism drives the feeding roller shaft to rotate towards a feeding direction during the movement of the cutting knife from the first position to the second position. The handheld adhesive tape sticking device disclosed by the embodiment of the application is provided with the driving mechanism, so that the feeding roller shaft is driven to rotate towards the feeding direction during the resetting movement of the cutting knife after the cutting is completed, the adhesive tape is stretched out from the adhesive tape outlet, and the next use of the adhesive tape is facilitated.

Description

Technical Field

[0001] This invention relates to the field of tape application devices, and in particular to a handheld tape application device. Background Technology

[0002] During the refrigerator packaging process, to prevent the refrigerator door from opening during transportation, the refrigerator door and the refrigerator body are glued together with tape. The tape seals the gap between the door and the body during the bonding process; that is, the direction of the tape roll's movement is consistent with the direction of extension of the gap between the door and the body, and the tape completely seals the gap between the door and the body.

[0003] While existing handheld tape application devices can easily cut tape, they cannot solve the problem of tape shrinkage after cutting, thus affecting the reusability of the tape roll. When applying tape to doors and cabinets, a problem that needs to be solved is how to easily cut the tape while ensuring that the cut tape head does not shrink back.

[0004] The problem that needs to be solved is how to ensure that the tape is neatly arranged in the extension direction after application in order to improve the aesthetics of the finished product. Summary of the Invention

[0005] The purpose of this invention is to provide a handheld tape applicator to overcome the shortcomings of the prior art. It enables the feed roller to rotate axially in the feeding direction when the cutter moves back to its original position after cutting, so as to extend the tape from the tape outlet, thereby facilitating the reuse of the tape.

[0006] This invention provides a handheld tape application device, comprising:

[0007] The housing has a receiving cavity and a tape outlet;

[0008] A tape support wheel is rotatably mounted within the accommodating cavity;

[0009] The cutting mechanism includes a cutting blade movably disposed within the accommodating cavity, a feeding roller shaft disposed opposite to the cutting blade and rotatably mounted within the accommodating cavity, and a driving mechanism;

[0010] The cutting blade has a first position that cooperates with the feeding roller shaft to cut the tape and a second position that is spaced apart from the feeding roller shaft. During the process of the cutting blade moving from the first position to the second position, the driving mechanism drives the feeding roller shaft to rotate in the feeding direction.

[0011] Furthermore, the driving mechanism includes a driving rack that is linked to the cutting blade and a driving gear coaxially disposed on the feeding roller shaft, wherein the driving rack meshes with the driving gear.

[0012] Furthermore, the drive gear has a gear body that is rotatably connected to the feed roller shaft and meshes with the drive rack, and a limiting mechanism disposed on the gear body. The limiting mechanism is configured to restrict the relative rotation between the gear body and the feed roller shaft during the process of the cutting blade moving from the first position to the second position.

[0013] Furthermore, the limiting mechanism includes a ratchet fixedly connected to the gear body and a pawl disposed on the feed roller shaft; the ratchet is provided with an internal gear ring, and the pawl is rotatably mounted on the feed roller shaft; the limiting mechanism also has an elastic element that drives the pawl to be positioned in the tooth groove of the internal gear ring.

[0014] Furthermore, a transmission assembly is provided between the drive rack and the drive gear. The transmission assembly includes a first gear and a second gear that mesh with each other. The first gear meshes with the drive rack, and the second gear meshes with the drive gear. The size of both the first gear and the second gear is larger than the size of the drive gear.

[0015] Furthermore, the cutting mechanism also has a cutting support frame rotatably mounted in the accommodating cavity, the cutting blade is fixed on the cutting support frame, and the driving rack is an arc-shaped rack fixed on the cutting support frame.

[0016] Furthermore, the cutting mechanism also has a reset component and an operating lever that is connected and fixed to the cutting support frame and extends outward from the receiving cavity;

[0017] The housing is provided with an arc-shaped sliding hole adapted to the control lever, and the reset component is a tension spring connected between the cutting support frame and the housing.

[0018] Furthermore, the handheld tape applicator also has a pressure roller shaft disposed in the accommodating cavity and located at the tape outlet, the pressure roller shaft being rotatably mounted on the housing via a pressure rotating shaft; the rotating shaft of the cutting support frame is coaxially arranged with the pressure rotating shaft.

[0019] Furthermore, the feeding roller shaft is provided with a plurality of cutting grooves adapted to the cutting blade, and the plurality of cutting grooves are arranged in a ring on the feeding roller shaft.

[0020] Furthermore, the tape support wheel has a body, a telescopic rod movably disposed along the radial direction of the body, and a compression spring. The body is provided with a positioning hole adapted to the telescopic rod, and the compression spring is positioned in the positioning hole and connected and fixed to the telescopic rod.

[0021] Compared with the prior art, the handheld tape applicator disclosed in this embodiment of the invention uses a drive mechanism to drive the feed roller to rotate axially in the feeding direction when the cutter moves back to its original position after cutting, so as to extend the tape from the tape outlet, thereby facilitating the next use of the tape. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the handheld tape applicator disclosed in the embodiments of the present invention in use.

[0023] Figure 2 This is a schematic diagram of the first structure of the handheld tape application device disclosed in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the second structure of the handheld tape application device disclosed in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the cutting blade in the second position of the handheld tape applicator disclosed in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the cutting blade in the first position of the handheld tape applicator disclosed in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the handheld tape application device disclosed in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the housing in the handheld tape application device disclosed in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the cutting mechanism in the handheld tape applicator disclosed in an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the first structure of the feeding roller shaft in the handheld tape applicator disclosed in an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the second structure of the feeding roller shaft in the handheld tape applicator disclosed in an embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the assembly structure of the ratchet and pawl in the handheld tape applicator disclosed in an embodiment of the present invention;

[0033] Figure 12 This is a schematic diagram of the drive gear in the handheld tape applicator disclosed in an embodiment of the present invention;

[0034] Figure 13This is a schematic diagram of the tape support wheel in the handheld tape application device disclosed in an embodiment of the present invention;

[0035] Figure 14 This is a schematic diagram of the internal structure of the tape support wheel in the handheld tape application device disclosed in an embodiment of the present invention;

[0036] Figure 15 This is a first structural schematic diagram of the moving guide mechanism in the handheld tape applicator disclosed in an embodiment of the present invention;

[0037] Figure 16 This is a schematic diagram of the second structure of the moving guide mechanism in the handheld tape applicator disclosed in the embodiments of the present invention;

[0038] Figure 17 This is a front view of the moving guide mechanism in the handheld tape applicator disclosed in an embodiment of the present invention;

[0039] Figure 18 This is a schematic diagram of the third structure of the moving guide mechanism in the handheld tape application device disclosed in an embodiment of the present invention;

[0040] Explanation of reference numerals in the attached drawings: 1-Housing shell, 10-Accommodation cavity, 11-Tape outlet, 12-Arc-shaped sliding hole, 13-Allowing groove, 2-Tape support wheel, 21-Main body, 210-Positioning hole, 22-Telescopic rod, 221-Protruding section, 222-Positioning section, 223-Limiting shoulder, 23-Compression spring.

[0041] 3-Cutting mechanism; 31-Cutting blade; 32-Feeding roller shaft; 321-Cutting groove; 322-Separator; 33-Drive mechanism; 331-Drive rack; 332-Drive gear; 333-Gear body; 334-Ratchet; 3341-Gear groove; 3342-Limiting wall; 3343-Sliding wall; 335-Pawl; 336-Elastic element; 337-First gear; 338-Second gear.

[0042] 34-Cutting support frame, 341-Support frame pivot, 342-First support wall, 343-Second support wall, 344-Connector, 35-Operating lever, 36-Reset component.

[0043] 4-Pressure roller shaft, 5-Guide roller shaft

[0044] 6-Moving guide mechanism, 61-Base, 611-Sliding hole, 62-Guide unit, 621-Upper guide component, 622-Lower guide component, 6221-Guide component body, 6222-Guide roller, 623-Auxiliary lower guide component, 624-Auxiliary upper guide component,

[0045] 63-Adjusting unit, 631-Adjusting block, 6310-Threaded hole, 6311-Connecting plate, 6312-Protrusion, 632-First support rod, 633-Second support rod, 634-First connecting rod, 635-Second connecting rod, 636-Bracket, 637-Bolt

[0046] 100 - Door body, 200 - Box body, 300 - Gap section. Detailed Implementation

[0047] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0048] Embodiments of the present invention: such as Figure 1-7 As shown, a handheld tape applicator is disclosed, comprising: a housing 1, a tape support wheel 2, and a cutting mechanism 3. The housing 1 has a receiving cavity 10 and a tape outlet 11; the tape support wheel 2 is rotatably mounted within the receiving cavity 10; a roll of tape is placed on the tape support wheel 2, and the tape roll is positioned on and rotates synchronously with the tape support wheel 2. The free end of the tape on the tape roll extends outward from the tape outlet 11, driving the tape support wheel 2 to rotate as the tape is continuously stretched outward. The cutting mechanism 3 is used to cut the stretched tape to a predetermined length. The handheld tape applicator using the above method can conveniently cut the tape.

[0049] While cutting tape using existing technology is not difficult, the problem that needs to be solved is how to prevent the free end of the tape roll from retracting back into the housing 1 after cutting. Because the cut tape end typically sags under gravity, causing the free end to retract into the housing cavity 10, this will cause inconvenience when using the tape again.

[0050] To address the aforementioned issues, the cutting mechanism 3 disclosed in this embodiment includes a cutting blade 31 movably disposed within the accommodating cavity 10, a feeding roller shaft 32 rotatably mounted opposite the cutting blade 31 within the accommodating cavity 10, and a driving mechanism 33. The cutting blade 31 has a first position cooperating with the feeding roller shaft 32 to cut the tape, and a second position spaced apart from the feeding roller shaft 32. During the movement of the cutting blade 31 from the first position to the second position, the driving mechanism 33 drives the feeding roller shaft 32 to rotate in the feeding direction. It should be noted that the feeding direction refers to the direction in which the driving mechanism 33, driving the feeding roller shaft 32 to rotate, can move the tape towards the tape outlet 11, thereby allowing the free end of the tape to extend out of the tape outlet.

[0051] In the handheld tape applicator disclosed in this embodiment, the drive mechanism 33 enables the cutting blade 31 to rotate in the feeding roller shaft 32 in the feeding direction when it resets and moves after cutting, so as to extend the tape from the tape outlet 11, thereby facilitating the next use of the tape.

[0052] The cutting mechanism 3 is also provided with a cutting support frame 34 for mounting and fixing the cutting blade 31. The cutting support frame 34 is rotatably mounted in the receiving cavity 10, and the cutting blade 31 is fixed on the cutting support frame 34. Specifically, as shown... Figure 8 As shown, the cutting support frame 34 has a support frame pivot 341 disposed on two opposing inner sidewalls of the housing 1, a first support wall 342 rotatably connected to the support frame pivot 341, a second support wall 343 rotatably connected to the support frame pivot 341, and a connecting shaft 344 connecting the first support wall 342 and the second support wall 343. The cutting blade 31 is connected and fixed to the first support wall 342 and the second support wall 343 respectively. A connecting ring is provided at one end of the first support wall 342 and sleeved on the outside of the support frame pivot 341. The connecting ring is clearance-fitted with the support frame pivot 341 to allow the first support wall 342 to rotate relative to the support frame pivot 341. Correspondingly, the second support wall 343 can also be sleeved on the support frame pivot 341 by a connecting ring to achieve rotational engagement with the support frame pivot 341.

[0053] The cutting support frame 34 can rotate within the accommodating cavity 10 around the support frame pivot 341. Since the cutting blade 31 is fixed to the cutting support frame 34, it moves with the rotation of the cutting support frame 34. The cutting blade 31 moves between a first position and a second position. In the first position, the cutting blade 31 engages with the feeding roller shaft 32 to cut the tape; at this time, the cutting blade 31 is in contact with the feeding roller shaft 32. In the second position, the cutting blade 31 is located away from the feeding roller shaft 32. As the cutting groove 31 moves from the first position to the second position with the cutting support frame 34, the drive mechanism 33 is activated, enabling the drive mechanism 33 to drive the feeding roller shaft 32 to rotate in the feeding direction.

[0054] In this embodiment, the power to move the cutting blade 31 from the second position to the first position to cut the tape comes from an external force. This external force can act directly on the cutting blade 31, or it can act on the cutting support frame 34, which in turn drives the cutting blade 31. To facilitate the control of the cutting blade 31's movement by external force, the cutting mechanism 3 in this embodiment also has a control lever 35 mounted on the cutting support frame 34 and extending outward from the receiving cavity 10. The control lever 35 is fixedly mounted on the cutting support frame 34 at one end away from the cutting blade. Correspondingly, an arc-shaped sliding hole 12 adapted to the control lever 35 is provided on the housing 1.

[0055] The power driving the cutting blade 31 to move from the first position to the second position comes from the reset member 36 of the cutting mechanism 3. The reset member 36 is a tension spring connecting the cutting support frame 34 and the housing 1. During the movement of the cutting blade 31 from the second position to the first position under the action of an external force, the reset member 36 stretches and deforms, accumulating a restoring force. After the external force is removed, the restoring force accumulated in the reset member 36 drives the cutting blade to reset and move from the first position to the second position. The reset member 36 is located on the cutting support frame 34 at a position away from the support frame pivot 341.

[0056] Specifically, in this embodiment, the driving mechanism 33 includes a driving rack 331 linked to the cutting blade 31 and a driving gear 332 coaxially mounted on the feeding roller shaft. The driving rack 331 meshes with the driving gear 332. The driving rack 331 can be an arc-shaped rack fixed on the cutting support frame 34. Since the cutting support frame 34 rotates around the support frame pivot 341, the actual movement trajectory of the driving rack 331 located on the cutting support frame 34 is arc-shaped. Therefore, setting the driving rack 331 to be arc-shaped can more conveniently realize the action on the feeding roller shaft 32 during the movement of the cutting blade 31.

[0057] The drive gear 332 is configured coaxially with the feed roller shaft 32 to facilitate control of the feed roller shaft 32. The drive gear 332 can also be fixedly configured with the feed roller shaft 32 to achieve synchronous rotation between them. However, fixing the drive gear 332 to the feed roller shaft 32 during the movement of the cutter 31 from the second position to the first position will cause the feed roller shaft 32 to rotate in the opposite direction to the feeding direction, thus affecting the extension of the tape.

[0058] As a further preferred option, such as Figure 9-12As shown, the drive gear 332 has a gear body 333 that is rotatably connected to the feed roller shaft 32 and meshes with the drive rack 331, and a limiting mechanism disposed on the gear body 333. The limiting mechanism is configured to restrict the relative rotation between the gear body 333 and the feed roller shaft 32 during the process of the cutting blade 31 moving from the first position to the second position.

[0059] Specifically, such as Figure 11 The limiting mechanism shown includes a ratchet 334 fixedly connected to the gear body 333 and a pawl 335 disposed on the feed roller shaft 32; the ratchet 334 is coaxially disposed with the gear body 333 and integrally formed. Through the cooperation of the ratchet 334 and the pawl 335, the drive gear 332 and the feed roller shaft 32 can be made to rotate synchronously only when rotating in the feeding direction.

[0060] Specifically, the ratchet 334 is provided with an internal gear ring, and the internal gear ring is provided with a plurality of tooth grooves 3341 arranged in a ring at uniform intervals. The pawl 335 is positioned in the tooth grooves 3341. The tooth grooves 3341 have a limiting wall 3342 that abuts against the pawl 335 to restrict the ratchet 334 from rotating alone in the feeding direction, and a sliding wall 3343 that is disposed opposite to the limiting wall 3342. When the ratchet 334 rotates in the opposite direction to the feeding direction, the sliding wall 3343 pushes the pawl 335 to move away from the tooth grooves 3341.

[0061] The pawl 335 is rotatably mounted on the feed roller shaft 32; the limiting mechanism also has an elastic element 336 that drives the pawl 335 to be positioned within the tooth groove 3341. The elastic element 336 has a first abutting portion that abuts against the pawl 335 and a second abutting portion that abuts against the feed roller shaft 32, and under the action of the elastic element 336, the pawl 335 is pushed to be positioned within the tooth groove 3341.

[0062] As the drive rack 331 moves from the second position to the first position along with the cutting blade 31, the drive rack 331 drives the gear body 333 to rotate in the opposite direction of the feeding direction. At this time, the sliding wall 3343 on the ratchet 334 can push the pawl 335 to move away from the tooth groove 3341. The pawl 335 does not restrict the gear body 333 from rotating in the opposite direction of the feeding direction. At this time, the gear body 333 and the feeding roller shaft 32 rotate relative to each other, and the feeding roller shaft 32 does not rotate in the opposite direction of the feeding direction.

[0063] As the drive rack 331 moves from the first position to the second position along with the cutting blade 31, the drive rack 331 drives the gear body 333 to rotate in the feeding direction. At this time, the pawl 335 is positioned in the tooth groove 3341 of the ratchet 334 and abuts against the limiting part 3342, thereby restricting the relative rotation between the ratchet 334 and the feeding roller shaft 32. Therefore, it can drive the feeding roller shaft 32 to rotate in the feeding direction, thereby conveying the tape in the feeding direction, so that the free end of the tape can extend out of the tape outlet 11 for convenient use next time.

[0064] Furthermore, such as Figure 6 As shown, a transmission assembly is provided between the drive rack 331 and the drive gear 332. The transmission assembly includes a first gear 337 and a second gear 338 that mesh with each other. The first gear 337 meshes with the drive rack 331, and the second gear 338 meshes with the drive gear 332. The dimensions of both the first gear 337 and the second gear 338 are larger than the dimension of the drive gear 332. Specifically, the diameter of the first gear 337 is larger than the diameter of the gear body 333, and the diameter of the second gear 338 is larger than the diameter of the gear body 333. Setting the transmission assembly as two meshing gears can avoid changing the transmission direction during transmission. Setting the dimensions of the first gear 337 and the second gear 338 to be larger than the dimensions of the gear body 333 can improve the transmission ratio, allowing the drive rack 331 to drive the drive gear 332 to rotate multiple times with very small movements, thereby enabling better control of the belt extension.

[0065] To better achieve the cutting of tape, such as Figure 10 As shown, in this embodiment, the feeding roller shaft 32 is provided with a plurality of cutting grooves 321 adapted to the cutting blade 31. The multiple cutting grooves 321 are arranged in a ring on the feeding roller shaft 32. Adjacent cutting grooves 321 form a partition 322, which has a V-shaped structure, and its dimensions shorten towards the direction away from the center of the feeding roller shaft 32. The cutting grooves 321 are V-shaped grooves; this design facilitates the cutting blade 31 entering the cutting groove 321, enabling better cutting while facilitating the positioning of the cutting blade 31.

[0066] Furthermore, such as Figure 4-8As shown, the handheld tape applicator also includes a pressure roller 4 disposed within the receiving cavity 10 and located at the tape outlet 11, the pressure roller 4 being rotatably mounted on the housing. The pressure roller 4 is used to roll and press the adhered tape to achieve a firm bond. In this embodiment, the pressure roller 4 is rotatably mounted on the housing via a pressure rotating shaft; specifically, the pressure rotating shaft can be the same rotating shaft as the support frame rotating shaft 341, meaning the pressure roller 4 is rotatably mounted on the support frame rotating shaft 341. The pressure roller 4 is preferably made of rubber, as the rubber-based pressure roller 4 has a certain elasticity and can better press the adhered tape.

[0067] like Figure 4-5 As shown, the handheld tape applicator also has a guide roller shaft 5 disposed on the cutting support frame 34. The guide roller shaft 5 is rotatably mounted on the connector 344. The connector 344 is a cylindrical connecting rod connected between the first support wall 342 and the second support wall 343. The guide roller shaft 5 is sleeved on the connector 344. The guide roller shaft 5 is located between the tape support wheel 2 and the pressing roller shaft 4. During use, the guide roller shaft 5 moves with the cutting support frame 34 and presses against the back of the tape, thus guiding the tape as it moves outward.

[0068] Furthermore, such as Figure 13-14 As shown, in order to improve the applicability of the handheld tape applicator, the tape support wheel 2 in this embodiment has a body part 21 rotatably mounted on the housing 1, a telescopic rod 22 movably arranged in the radial direction of the body part 21, and a compression spring 23. The body part 21 is provided with a positioning hole 210 adapted to the telescopic rod 22, and the compression spring 23 is positioned in the positioning hole 210 and connected and fixed to the telescopic rod 22.

[0069] Under the action of external force, the telescopic rod 22 moves into the positioning hole 210 and compresses the compression spring 23. After the external force is removed, the rebound force accumulated by the compression spring 23 drives the telescopic rod 22 to return to its original position. After the tape roll is installed, the compression spring 23 drives the telescopic rod 22 to abut against the inner wall of the tape roll. The telescopic rod 22 allows the tape support wheel 2 to be used with more types of tape and can provide positioning for tapes of various sizes. Before assembling the tape roll onto the tape support wheel 2, the telescopic rod 22 is first compressed inward to move into the positioning hole 210. Then, the tape roll is installed and fixed. After the tape roll is installed and fixed, the telescopic rod 22 returns to its original position under the action of the compression spring 23 and abuts against the tape roll to achieve the installation and fixation of the tape roll.

[0070] Furthermore, to avoid excessive travel during the reset movement of the telescopic rod 22, in this embodiment, the telescopic rod 22 includes a protruding section 221, a positioning section 222, and a limiting shoulder 223. The positioning section 222 is integrally formed with the protruding section 221. The positioning section 222 is movably disposed within the positioning hole 210 and is adapted to the shape of the positioning hole 210. The opening of the positioning hole 210 contracts inward to form a limiting part that abuts against the limiting shoulder 223. The protruding section 221 protrudes outward from the opening of the positioning hole 210. The cooperation of the limiting shoulder 223 and the limiting part can limit the travel of the telescopic rod 22 outward from the positioning hole 210, preventing the telescopic rod 22 from fully extending out of the positioning hole 210 during the reset movement, thereby better realizing the telescopic movement of the telescopic rod 22.

[0071] Furthermore, the housing 1 is also provided with a measuring mechanism 7, which can be mechanical or electronic, with a roller at the bottom. As the handheld tape applicator moves, the roller rotates, driving the internal mechanical or electronic device, and then the length is displayed on the measuring mechanism 7, so that the length of the applied tape can be seen intuitively.

[0072] The handheld tape applicator disclosed in this embodiment can be used in the refrigerator sealing process. During refrigerator sealing, to prevent the refrigerator door 100 from opening from the refrigerator body 200 during transportation, the refrigerator door 100 and the refrigerator body 200 need to be bonded together with tape. During the bonding process, the tape seals along the gap 300 between the door 100 and the refrigerator body 200; that is, the direction of movement of the tape roll is consistent with the extension direction of the gap 300 between the door 100 and the refrigerator body 200, and the tape completely seals the gap 300 between the door 100 and the refrigerator body 200. When applying the tape to the door 100 and the refrigerator body 200, ensuring that the tape is neatly arranged in the extension direction after application to improve the aesthetics of the finished product is a problem that needs to be solved.

[0073] To address the aforementioned technical problems, the present invention also discloses a movable guide mechanism 6, which is detachably mounted and fixed to the handheld tape applicator. Specifically, the movable guide mechanism 6 is detachably mounted and fixed to the bottom of the housing 1 for easy removal when not in use. The movable guide mechanism 6 guides the movement direction of the handheld tape applicator during its movement.

[0074] Since there is a gap 300 between the refrigerator body 200 and the door 100, the moving guide mechanism 6 disclosed in this embodiment can move along the extension direction of the gap 300 to ensure that the tape is evenly pasted on both sides of the gap 300, thereby achieving a neater tape after pasting.

[0075] like Figure 15-18 As shown, the moving guide mechanism 6 includes a base 61, a guide unit 62 disposed on the base 61, and an adjustment unit 63. The guide unit 62 includes an upper guide member 621 and a lower guide member 622 movably disposed on the base 61. The adjustment unit 63 is used to adjust the distance between the upper guide member 621 and the lower guide member 622.

[0076] During use, the upper guide 621 and the lower guide 622 are placed within the gap 300. Then, the adjustment unit 63 is adjusted so that the distance between the upper guide 621 and the lower guide 622 matches the width of the gap 300, allowing the upper guide 621 and the lower guide 622 to abut against the housing 200 and the door 100, respectively. This structure allows the moving guide mechanism 6 to move with the handheld tape applicator, with the upper guide 621 moving close to the housing 200 and the lower guide 62 moving close to the door 100. This guides the movement of the handheld tape applicator, ensuring the applicated tape extends along the extension direction of the gap 300, improving the neatness of the applied tape.

[0077] To facilitate the adjustment of the upper guide 621 and the lower guide 622, the adjustment unit 63 is configured to simultaneously adjust the upper guide 621 and the lower guide 622. The adjustment unit 63 can drive the upper guide 621 and the lower guide 622 to move closer together or further apart simultaneously. This structure effectively adjusts the upper guide 621 and the lower guide 622 around the center point of their distance. In other words, the adjustment process always revolves around this center point, moving closer to or away from it. It can be understood that regardless of the adjustment method, the center of the final distance will always be aligned with the center of the gap 300. The adjustment unit 63 facilitates the adjustment of the upper guide 621 and the lower guide 622, thus adapting to gaps 300 of various sizes.

[0078] Specifically, the adjustment mechanism 63 includes an adjustment block 631 and a first support rod 632 and a second support rod 633 that are intersected and rotatably mounted on the base. The upper guide 621 is mounted on the first support rod 632, and the lower guide 622 is mounted on the second support rod 633. The adjustment block 631 is slidably mounted on the base and drives the first support rod 632 and the second support rod 633 to rotate synchronously so that the upper guide 621 and the lower guide 622 move closer to each other or move away from each other.

[0079] A rotating shaft 611 is provided on the base 61. The first support rod 632 and the second support rod 633 are both rotatably mounted on the rotating shaft 611 and are symmetrically arranged about the rotating shaft 611. The center of the first support rod 632 is rotatably connected to the rotating shaft 611, and the center of the second support rod 633 is rotatably connected to the rotating shaft 611. The first support rod 632 and the second support rod 633 have the same size and structure. After the first support rod 632 and the second support rod 633 are installed and fixed, the structure formed by the first support rod 632 and the second support rod 633 also has a centrally symmetrical structure.

[0080] When the adjusting block 631 slides along the base 61, it synchronously drives the first support rod 632 and the second support rod 633 to rotate. Specifically, the adjusting block 631 is connected and fixed to the first support rod 632 via a first connecting rod 634, and the adjusting block 631 is connected and fixed to the second support rod 633 via a second connecting rod 635. The direction in which the adjusting block 631 slides along the base 61 is exactly the extension direction of the central axis of symmetry of the first connecting rod 634 and the second connecting rod 635. The first connecting rod 634 and the second connecting rod 635 are rotatably connected to the adjusting block 631. The first connecting rod 634 is rotatably connected to the first support rod 632, and the second connecting rod 635 is rotatably connected to the second support rod 633. The first connecting rod 634 and the second connecting rod 635 are symmetrically arranged about the sliding direction of the adjusting block 631.

[0081] In another embodiment, the adjustment unit 63 can also adjust the distance between the upper guide 621 and the lower guide 622 through the cooperation of the thread and the screw. Specifically, the screw can be rotatably mounted on the base 61, and a first threaded hole and a second threaded hole are respectively provided on the upper guide 621 and the lower guide 622. The first threaded hole and the second threaded hole are both threaded with the screw, and the first threaded hole and the second threaded hole are set in opposite directions.

[0082] In the above embodiment, the upper guide 621 and the lower guide 622 are arranged in pairs to form a guide assembly. During use, the upper guide 621 and the lower guide 622 in the guide assembly abut against the housing 200 and the door 100 respectively to guide the movement of the handheld tape applicator. In order to achieve smoother guidance of the handheld tape applicator, two guide assemblies can be provided in this embodiment. The second guide assembly includes an auxiliary lower guide 623 and an auxiliary upper guide 624. The auxiliary lower guide 623 abuts against the door 100 together with the lower guide 622 and slides relative to the door 100 as the handheld tape applicator moves. The auxiliary upper guide 624 abuts against the housing 200 together with the upper guide 621 and slides relative to the housing 200 as the handheld tape applicator moves, thereby better playing the guiding role.

[0083] Specifically, the auxiliary lower guide 623 is disposed on the first support rod 632, and the auxiliary lower guide 623 is symmetrically arranged with the upper guide 621 about the rotation axis 611 as the center; the auxiliary upper guide 624 is disposed on the second support rod 633, and the auxiliary upper guide 624 is symmetrically arranged with the lower guide 622 about the rotation axis 611 as the center; and the auxiliary upper guide 624 and the upper guide 621 are symmetrically arranged with the sliding direction of the adjusting block 631 as the center. The above structure is configured such that the line connecting the auxiliary upper guide 624 and the upper guide 621 is parallel to the line connecting the auxiliary lower guide 623 and the lower guide 622.

[0084] To facilitate adjustment of the adjusting block 631, the adjusting mechanism 63 further includes an adjusting block driving unit for driving the adjusting block 631 to slide along the base 61. The adjusting block driving unit includes a bracket 636 fixed to the base 61 and a bolt 637 rotatably mounted on the bracket 626. The adjusting block 631 is provided with a threaded hole 6310 that matches the bolt 637. The bolt 627 can be rotatably mounted on the bracket 626 via a bearing, and the bolt 627 will drive the adjusting block 631 to move during rotation.

[0085] Specifically, the base 61 has a plate-like structure, and the bracket 636 is vertically disposed on the base 61; the adjusting block 631 has a connecting plate 6311 and a protrusion 6312 disposed on the connecting plate 6311, a threaded hole 6310 disposed on the protrusion 6312, and a sliding hole 611 disposed on the base 61 that slides with the protrusion 6312. The sliding hole 611 is adapted to the protrusion 6312 and extends along the sliding direction of the adjusting block 631.

[0086] To better guide movement, both the upper guide 621 and the lower guide 622 have a guide body 6221 and a guide roller 6222 rotatably mounted on the guide body 6221. The guide roller is made of rubber, and its rotation on the guide body allows for smoother sliding between the upper guide 621 and the housing 200. It is understood that the auxiliary upper guide 624 and the auxiliary lower guide 623 have the same structure as the upper guide 621.

[0087] Another embodiment of the present invention discloses a handheld tape application device, comprising:

[0088] The housing 1 has a receiving cavity 10 and a tape outlet 11;

[0089] The tape support wheel 2 is rotatably installed inside the receiving cavity 10;

[0090] The cutting mechanism 3 has a cutting blade 31 that is movably disposed within the receiving cavity 10;

[0091] The mobile guide mechanism 6 is fixed on the housing 1.

[0092] Furthermore, the housing 1 is provided with a clearance groove 13 that is adapted to the base 61, the base 61 is positioned in the clearance groove 13 and the outer surface of the base 61 does not protrude from the outer surface of the housing 1.

[0093] Another embodiment of the present invention discloses a method of using the above-mentioned handheld tape application device, comprising the following steps:

[0094] The width of the gap 300 between the first object and the second object is obtained, wherein the first object and the second object are two objects to be bonded together with adhesive tape; in this embodiment, the first object is a box body 200 and the second object is a door body 100.

[0095] The spacing between the upper guide 621 and the lower guide 622 is adjusted according to the width of the gap 300, so that the upper guide 621 and the lower guide 622 are accommodated within the gap 300 and abut against the two side walls of the gap 300, respectively. The two side walls 300 of the gap are the side walls of the housing 200 and the side walls of the door 100, respectively.

[0096] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A handheld tape applicator, characterized in that, include: The housing has a receiving cavity and a tape outlet; A tape support wheel is rotatably mounted within the accommodating cavity; The cutting mechanism includes a cutting support frame rotatably mounted in the accommodating cavity, a cutting blade fixed on the cutting support frame, a guide roller shaft disposed on the cutting support frame, a feeding roller shaft disposed opposite to the cutting blade and rotatably mounted in the accommodating cavity, and a driving mechanism; A pressure roller shaft is disposed within the accommodating cavity and located at the tape outlet. The pressure roller shaft is rotatably mounted on the housing via a pressure rotating shaft. A guide roller shaft is located between the tape support wheel and the pressure roller shaft. The rotating shaft of the cutting support frame is coaxially arranged with the pressure rotating shaft. During use, the guide roller shaft moves with the cutting support frame and presses against the back of the tape. The cutting blade has a first position that cooperates with the feeding roller shaft to cut the tape and a second position that is spaced apart from the feeding roller shaft. During the process of the cutting blade moving from the first position to the second position, the driving mechanism drives the feeding roller shaft to rotate in the feeding direction.

2. The handheld tape applicator according to claim 1, characterized in that: The driving mechanism includes a driving rack that is linked to the cutting blade and a driving gear that is coaxially mounted on the feeding roller shaft, wherein the driving rack meshes with the driving gear.

3. The handheld tape applicator according to claim 2, characterized in that: The drive gear has a gear body that is rotatably connected to the feed roller shaft and meshes with the drive rack, and a limiting mechanism disposed on the gear body. The limiting mechanism is configured to restrict the relative rotation between the gear body and the feed roller shaft during the process of the cutting blade moving from the first position to the second position.

4. The handheld tape applicator according to claim 3, characterized in that: The limiting mechanism includes a ratchet fixed to the gear body and a pawl disposed on the feed roller shaft; the ratchet is provided with an internal gear ring, and the pawl is rotatably mounted on the feed roller shaft; the limiting mechanism also has an elastic element that drives the pawl to be positioned in the tooth groove of the internal gear ring.

5. The handheld tape applicator according to claim 2, characterized in that: A transmission assembly is provided between the drive rack and the drive gear. The transmission assembly includes a first gear and a second gear that mesh with each other. The first gear meshes with the drive rack, and the second gear meshes with the drive gear. The size of the first gear and the size of the second gear are both larger than the size of the drive gear.

6. The handheld tape applicator according to claim 2, characterized in that: The drive rack is an arc-shaped rack fixed on the cutting support frame.

7. The handheld tape applicator according to claim 6, characterized in that: The cutting mechanism also has a reset component and an operating lever that is connected and fixed to the cutting support frame and extends outward from the receiving cavity; The housing is provided with an arc-shaped sliding hole adapted to the control lever, and the reset component is a tension spring connected between the cutting support frame and the housing.

8. The handheld tape applicator according to claim 1, characterized in that: The feeding roller shaft is provided with a plurality of cutting grooves adapted to the cutting blade. The plurality of cutting grooves are arranged in a ring on the feeding roller shaft.

9. The handheld tape applicator according to claim 1, characterized in that: The tape support wheel has a body, a telescopic rod movably disposed along the radial direction of the body, and a compression spring. The body is provided with a positioning hole adapted to the telescopic rod, and the compression spring is positioned in the positioning hole and connected and fixed to the telescopic rod.

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