CN215974275U - Single-side adhesive tape sticking device - Google Patents

Abstract

The utility model provides a single-sided tape sticking device which comprises a shell, a tape roll which is rotatably arranged in the shell, a cutting unit which is arranged on the shell, and a tape moving unit which is arranged on the shell, wherein the bottom of the shell is provided with a tape outlet, the tape moving unit comprises a rack which can move in a reciprocating manner, an operating piece which drives the rack to move in a reciprocating manner, a driving gear, a first driven gear, a driving piece and a driving gear, the driving piece is provided with a pawl part on the periphery, the driving gear is arranged in the shell in a rotating manner, the driving gear is arranged at the end part of the driving gear, the rack is meshed with the driving gear, the driving gear is fixed with the driving piece, the pawl part of the driving piece is in transmission fit with the inner pawl part of the driving gear, the driving gear is meshed with the first driven gear, and a glue passing gap which allows a tape to pass through is formed between the driving gear and the first driven gear. This application passes through the reciprocating motion of operating parts drive rack, can make driving gear and first driven gear antiport, and from this make the sticky tape see off from the casing, and it is very convenient to operate, labour saving and time saving.

Description

Single-side adhesive tape sticking device

Technical Field

The utility model relates to stationery or daily necessities, in particular to a single-sided adhesive tape sticking device.

Background

At present, the adhesive tape device can realize continuous output, adhesion and cutting of an adhesive tape, so that the adhesive tape device is widely applied to the fields of offices, families, engineering decoration and the like. Meanwhile, the adhesive tape device also has the function of adhesive tape discharging, so that the adhesive tape device is convenient to continuously use. In the prior art, the adhesive tape outlet device has the following two modes:

1. the user is required to scrape the head of the cut adhesive tape from the outlet of the adhesive tape device through fingers, the mode is time-consuming and labor-consuming, and the operation is inconvenient.

2. The bottom of the adhesive tape device is provided with a friction gear which can be simultaneously contacted with an adhered object and an adhesive tape, the adhesive tape device is translated on the surface of the adhered object, the adhesive tape is driven to move out of an outlet of the adhesive tape device through the friction force between the friction gear and the adhered object, and the automatic adhesive tape discharging is realized, for example, the roller type adhesive tape cutting device disclosed in the Chinese patent application with the application number of 201510347522.3. However, in the actual use process of the adhesive tape dispenser, due to the reasons that the friction force of the adhered objects is different or the surface flatness of the adhered objects is not enough, the phenomenon of gear slippage due to friction is easy to occur, so that the success rate of pulling out the adhesive tape each time is not high, and certain inconvenience is caused.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a single-sided tape applicator capable of feeding out a tape easily and accurately.

In order to achieve the above object, the present invention provides a single-sided tape applicator, comprising a housing, a tape roll rotatably mounted in the housing, a cutting unit mounted in the housing, and a tape moving unit mounted in the housing, wherein a tape outlet allowing the tape to be removed is formed in the bottom of the housing, the cutting unit has a cutter capable of moving back and forth, the tape moving unit comprises a rack capable of moving back and forth, an operating member driving the rack to move back and forth, a driving gear, a first driven gear, a driving member having a pawl portion at the outer periphery thereof, and a pinion having an inner pawl portion at the end thereof, the driving gear, the driving member, and the pinion are coaxially disposed, the rack and the driving gear are engaged, the driving gear and the driving member are fixed, the pawl portion of the driving member is in transmission engagement with the inner pawl portion of the pinion, the driving gear is meshed with the first driven gear, and a glue passing gap allowing the adhesive tape to pass through is formed between the driving gear and the first driven gear.

Further, the single-sided tape applicator further comprises a pulley rotatably mounted in the housing, the pulley is located between the tape roll and the driving gear, and the pulley is used for being in abutting fit with the tape.

Further, the belt moving unit further comprises a second driven gear and a third driven gear which are rotatably installed in the shell, and a transmission assembly connected between the first driven gear and the third driven gear, wherein the driving gear and the second driven gear are distributed on one side of the glue passing gap, the second driven gear is located between the driving gear and the adhesive tape outlet, the first driven gear and the third driven gear are distributed on the other side of the glue passing gap, and the third driven gear is located between the first driven gear and the adhesive tape outlet.

Preferably, transmission assembly is including setting up driving wheel portion on first driven gear, setting up driven wheel portion, the drive belt on third driven gear and rotationally install the drive gear in the casing, the periphery at driving wheel portion and driven wheel portion is established to the drive belt cover, drive gear and first driven gear meshing, drive gear and third driven gear meshing.

Further, the single-sided tape bonder further comprises a positioning frame fixed in the shell, a first positioning shaft fixed on the positioning frame, and a first spring sleeved on the first positioning shaft, wherein the operating piece is a first button and movably mounted on the shell, a first port allowing the first button to be exposed is formed in the shell, two ends of the first spring are respectively abutted to the first button and the positioning frame, and the rack is fixed on the first button.

Preferably, the locating rack is provided with a first sliding groove and a first limiting portion located at the end portion of the first sliding groove, the first button is provided with a first sliding block portion matched with the first sliding groove, the first sliding block portion can be abutted against the first limiting portion, and the rack extends out of the first sliding block portion integrally.

Further, the single-sided tape bonder further comprises a second positioning shaft fixed on the positioning frame and a second spring sleeved on the second positioning shaft, the cutting unit further comprises a second button movably mounted on the shell, a second port allowing the second button to be exposed is formed in the shell, two ends of the second spring are respectively abutted to the second button and the positioning frame, and the cutter is fixed on the second button.

Preferably, the locating rack is provided with a second sliding groove and a second limiting part located at the end part of the second sliding groove, a second sliding block part matched with the second sliding groove is arranged on the second button, and the second sliding block part can be abutted to the second limiting part.

Furthermore, the bottom of the shell is provided with a downward convex pressing part, and the pressing part is positioned on one side of the adhesive tape outlet and used for pressing the adhesive tape.

Further, the casing includes the base, and all covers at positive sticky tape lid, left side lid and the right side lid of base, the sticky tape lid articulates in the base, and is formed with the first cavity of holding the sticky tape book between the two, the left side lid is installed in the base, and is formed with the second cavity that holds cutting unit, operating part, rack, drive gear, driving piece and driving gear between the two, the right side lid is installed in the base, and is formed with the third cavity of holding first driven gear between the two, the sticky tape export is formed between left side lid and right side lid.

As described above, the single-sided tape applicator according to the present invention has the following advantageous effects:

in this application, when through operating parts drive rack reciprocating motion, the rack passes through drive gear and driving piece drive driving gear and rotates, and the driving gear drives first driven gear again and rotates, and driving gear and first driven gear both counter rotation can drive the sticky tape in gluing the clearance to the direction removal that is close to the sticky tape export, can see off the sticky tape from the casing accurately from this, be convenient for continuous use. Moreover, the operation of automatically sending out the adhesive tape is very convenient, and only the operating piece is needed to drive the rack to move in a reciprocating manner, so that time and labor are saved.

Drawings

Fig. 1 is a schematic structural view of a single-sided tape applicator of the present application.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a schematic structural view of the single-sided tape applicator of the present application without the tape cover, the left side cover, and the right side cover.

Fig. 4 is a front view of fig. 3.

Fig. 5 is a schematic view showing the connection of the cutting unit, the tape transferring unit and the spacer in the present application.

Fig. 6 is a top view of fig. 5.

Fig. 7 is a schematic view of the connection of the first driven gear and the third driven gear in the present application.

FIG. 8 is a schematic view of the connection of the pinion gear, drive gear and drive member of the present application.

Fig. 9 is a sectional view taken along line a-a of fig. 8.

Description of the element reference numerals

10 adhesive tape roll

20 casing

21 adhesive tape outlet

22 pressing part

23 base

24 adhesive tape cover

25 left side cover

26 Right side cover

27 support sleeve part

30 cutting unit

31 cutting knife

32 second button

33 second slider part

40 belt moving unit

41 rack

42 drive gear

43 first driven gear

44 drive element

441 pawl part

442 inner end shaft part

443 outer end shaft portion

45 driving gear

451 inner ratchet part

46 second driven gear

47 third driven gear

48 transmission belt

49 drive gear

410 first button

411 first slider part

50 pulley

60 positioning frame

61 first chute

62 first limit part

63 second chute

64 second limit part

70 first positioning shaft

80 first spring

90 second positioning shaft

110 second spring

120 fixed mount

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.

The utility model provides a single-sided tape applicator capable of continuously feeding a tape, adhering the tape to an object to be adhered, and cutting the tape after use. As shown in fig. 1 to 5, the single-sided tape applicator includes a case 20, a tape roll 10 rotatably mounted in an upper section of the case 20, a cutting unit 30 mounted on the left side of a lower section of the case 20, and a transfer unit 40 in the lower section of the case 20. Wherein, the bottom of the shell 20 is provided with a tape outlet 21 for allowing the tape to be removed; the cutting unit 30 has a cutter 31 reciprocally movable in the left-right direction, the cutter 31 being disposed near the tape outlet 21; the tape moving unit 40 comprises a rack 41 which can reciprocate along the left-right direction, an operating piece which is connected to the left side of the rack 41 and drives the rack 41 to reciprocate left and right, a driving gear 42, a first driven gear 43, a driving piece 44 provided with at least one pawl part 441 at the periphery, and a driving gear 45 provided with an inner ratchet part 451 at the end part, wherein the driving gear 42, the first driven gear 43, the driving piece 44 and the driving gear 45 are all rotatably arranged in the shell 20 and are all positioned at the lower side of the adhesive tape roll 10, the driving gear 42, the driving piece 44 and the driving gear 45 are coaxially arranged, the rack 41 is meshed with the driving gear 42, the driving gear 42 is fixed with the driving piece 44, the pawl part 441 of the driving piece 44 is in transmission fit with the inner ratchet part 451 of the driving gear 45, the driving gear 45 is meshed with the first driven gear 43, and an adhesive gap which allows the adhesive tape to pass through is formed between the driving gear 45 and the driving gear, the adhesive passing gap is communicated with the adhesive tape outlet 21.

The single-sided tape dispenser mounts the tape roll 10 in the housing 20 in an initial state, and places a section of the tape at the head of the tape roll 10 in the gap, the section of the tape being in contact with both the driving gear 45 and the first driven gear 43. When the single-sided tape applicator is used, the user drives the rack 41 to reciprocate left and right by the operating member: (ii) a When the rack 41 moves to the left, the rack 41 drives the driving gear 42 and the driving member 44 to rotate counterclockwise as viewed from the trying point shown in fig. 4, and the driving gear 45 does not rotate in the process; when the rack 41 moves to the right, the rack 41 drives the driving gear 42 to rotate clockwise, the driving member 44 rotates clockwise along with the driving gear 42, the pawl portion 441 on the periphery of the driving member 44 pulls the inner pawl portion 451 at the end of the driving gear 45, so as to drive the driving gear 45 to rotate clockwise, and the driving gear 45 drives the first driven gear 43 to rotate counterclockwise; in this way, the tape in the gap is driven to move downward in a direction close to the tape outlet 21 by the reverse rotation of the driving gear 45 and the first driven gear 43, so that the tape is automatically and accurately fed out from the housing 20. After the tape is removed from the tape outlet 21 at the lower end of the housing 20, the single-sided tape applicator is pressed against the surface of the object to be adhered, so that the tape is adhered to the surface of the object to be adhered. And then the single-sided adhesive tape applicator translates to the right on the surface of the adhered object, so that the adhesive tape can be continuously pulled out and continuously adhered on the adhered object. And finally, driving the cutter 31 to move rightwards in the direction close to the adhesive tape, and cutting the adhesive tape after the cutter 31 is contacted with the adhesive tape to realize automatic cutting of the adhesive tape. Therefore, the adhesive tape can be conveniently and accurately and automatically sent out, and only the operating part is needed to drive the rack 41 to reciprocate, so that time and labor are saved in operation.

Preferably, as shown in fig. 5 and 6, in the belt moving unit 40, two sets of transmission assemblies composed of the rack 41, the driving gear 42, the driving member 44 and the inner ratchet portion 451 are respectively distributed at the front and rear ends of the pinion 45. The drive gear 42 is located on the outer end side of the drive member 44, and both may be fixed by a fastener such as a screw. In this embodiment, as shown in fig. 8 and 9, the driving gear 42 and the driving member 44 are integrally formed, and the inner end shaft portion 442 and the outer end shaft portion 443 are respectively disposed at the inner end and the outer end of the integrally formed member; the integrally formed member is rotatably mounted in the housing 20 by its outer end shaft portion 443; the inner end shaft portions 442 of the integrally formed parts in the front and rear sets of transmission assemblies are inserted, and the driving gear 45 is rotatably sleeved on the inner end shaft portions 442 of the two integrally formed parts.

Further, as shown in fig. 1 and 2, the case 20 includes a base 23, and a tape cover 24, a left side cover 25, and a right side cover 26, all of which cover the front surface of the base 23. The left end of the adhesive tape cover 24 is hinged to the base 23 through a pin shaft extending forwards and backwards, and the right end of the adhesive tape cover 24 is detachably clamped with the base 23, so that the adhesive tape cover 24 can be turned over relative to the base 23 up and down; a first cavity for accommodating the tape roll 10 is formed between the tape cover 24 and the base 23; thus, when the tape is used up, the tape cover 24 can be rotated upward relative to the base 23, so that the first chamber can be opened, and a new tape roll 10 can be conveniently replaced. As shown in fig. 3 and 4, the base 23 is provided with a support sleeve 27 in the first chamber, and the adhesive tape roll 10 is rotatably fitted over the support sleeve 27. The left side cover 25 is fixedly or detachably mounted on the base 23, and a second cavity is formed between the left side cover and the base, and the cutting unit 30, the operating piece, the rack 41, the driving gear 42, the driving piece 44 and the driving gear 45 are all accommodated in the second cavity; the right cover 26 is fixedly or detachably mounted to the base 23 with a third chamber formed therebetween that accommodates the first driven gear 43. The tape outlet 21 at the bottom of the case 20 is formed between the lower end of the left side cover 25 and the lower end of the right side cover 26. A mounting gap is formed between the left side cover 25 and the right side cover 26, the upper and lower ends of the mounting gap extend to the first cavity and the tape outlet 21, respectively, and the adhesive passing gap is exposed from the mounting gap. When both the left cover 25 and the right cover 26 are fixed, after the tape roll 10 is replaced with a new tape roll 10, the tape at the head of the new tape roll 10 is pulled out, and the tape is inserted into the gap between the driving gear 45 and the first driven gear 43 from the mounting gap between the left cover 25 and the right cover 26. When the left and right covers 25 and 26 are detachable, the tape at the head of the new tape roll 10 can be easily inserted into the gap between the driving gear 45 and the first driven gear 43 after the tape roll 10 is replaced with a new tape roll 10.

Further, as shown in fig. 1 and 2, the bottom of the base 23 and the bottom of the left side cover 25 are both provided with downward-protruding pressing portions 22, so that the pressing portions 22 are also provided at the bottom of the housing 20, the pressing portions 22 are located at the left side of the tape outlet 21, and the lower ends of the pressing portions 22 are the lowest ends of the housing 20. In the process of translating the single-sided tape applicator to the right on the surface of the object to be adhered and continuously pulling out the tape, the pressing part 22 presses the tape further downward on the object to be adhered, and further flattens the tape, so that the tape is adhered more snugly. The pressing part 22 is a circular arc curved surface which is convex downwards, so that the effect of pressing the adhesive tape is improved.

Further, as shown in fig. 3 and 4, the single-sided tape applicator further includes a pulley 50, a fixing shaft extending rearward is provided on an inner wall of the base 23 or the right cover 26, the pulley 50 is rotatably fitted over the fixing shaft, such that the pulley 50 is rotatably installed in the housing 20; the pulley 50 is located between the tape roll 10 and the driving gear 45, and the pulley 50 is engaged with the tape. The pulley 50 can change the moving direction of the adhesive tape in the process of feeding and pulling out the adhesive tape, and reduce the friction force, thereby improving the success rate of accurately feeding out and pulling out the adhesive tape, and improving the convenience in use.

Further, as shown in fig. 3 to 5, the tape moving unit 40 further includes a second driven gear 46 and a third driven gear 47 both rotatably installed in the housing 20, and a transmission assembly connected between the first driven gear 43 and the third driven gear 47, the driving gear 45 and the second driven gear 46 are distributed at the left side of the glue passing gap, and the second driven gear 46 is located between the driving gear 45 and the tape outlet 21, the first driven gear 43 and the third driven gear 47 are distributed at the right side of the glue passing gap, and the third driven gear 47 is located between the first driven gear 43 and the tape outlet 21. When the driving gear 45 rotates clockwise, the first driven gear 43 rotates counterclockwise, the first driven gear 43 drives the third driven gear 47 to rotate counterclockwise through the transmission assembly, the third driven gear 47 drives the second driven gear 46 to rotate clockwise, the adhesive tape also passes through the space between the second driven gear 46 and the third driven gear 47, the adhesive tape is assisted to be sent out through the reverse rotation between the second driven gear 46 and the third driven gear 47, and the success rate of accurately sending the adhesive tape out is improved.

Preferably, in the present embodiment, as shown in fig. 5 and 7, the transmission assembly includes a driving wheel portion disposed in the middle of the first driven gear 43, a driven wheel portion disposed in the middle of the third driven gear 47, a transmission belt 48 having elasticity, and a transmission gear 49 rotatably mounted in the housing 20, the transmission belt 48 is sleeved on the outer peripheries of the driving wheel portion and the driven wheel portion, the transmission gear 49 is engaged with the first driven gear 43, and the transmission gear 49 is engaged with the third driven gear 47. The first driven gear 43 and the third driven gear 47 are both in contact with the adhesive surface of the adhesive tape, so that the transmission belt 48 is also in contact with the adhesive surface of the adhesive tape, and the transmission belt 48 is made of silicon rubber, so that the adhesion viscosity of the transmission belt 48 and the adhesive surface of the adhesive tape can be reduced; meanwhile, the transmission belt 48 can prevent the adhesive tape from being caught between the first driven gear 43 and the third driven gear 47, further improving the success rate of accurately feeding out the adhesive tape. In addition, as shown in fig. 5, the single-sided tape applicator further includes a fixing frame 120, the first driven gear 43, the third driven gear 47 and the transmission gear 49 are rotatably engaged with the fixing frame 120, three gears of the first driven gear 43, the third driven gear 47 and the transmission gear 49 are combined into a gear assembly through the fixing frame 120, so that the integral installation is facilitated, and the transmission gear 49 can be taken out from the fixing frame 120.

Further, as shown in fig. 3 to 6, the single-sided tape dispenser further includes a positioning frame 60 fixed in the housing 20, a first positioning shaft 70 fixed to the positioning frame 60, and a first spring 80 sleeved on the first positioning shaft 70 and extending left and right, the operating element is a first button 410 and is installed on the housing 20 in a manner of moving left and right, a first port allowing the first button 410 to be exposed is opened on the left side surface of the housing 20, and the left and right ends of the first spring 80 are respectively abutted to the first button 410 and the positioning frame 60; the front side and the rear side of the positioning frame 60 are provided with first sliding grooves 61 extending left and right, the positioning frame 60 is provided with a first limiting portion 62 at the left end of each first sliding groove 61, the front end and the rear end of the first button 410 are provided with first sliding block portions 411 in sliding fit with the first sliding grooves 61, the first sliding block portions 411 can be abutted to the first limiting portions 62, and the rack 41 integrally extends rightward from the first sliding block portions 411. Thus, when the user presses the first button 410 rightward at the first port, the first button 410 drives the rack 41 to move rightward, and the tape is driven to move downward for a certain distance by the tape moving unit 40; after the user releases the first button 410, the first button 410 is driven to move left under the action of the first spring 80 until the first sliding block portion 411 abuts against the first limiting portion 62; thus, the tape is driven to move out of the tape outlet 21 at the bottom of the housing 20 by continuously pressing the first button 410 to the right.

Further, as shown in fig. 3 to 5, the single-sided tape dispenser further includes a second positioning shaft 90 fixed to the positioning frame 60, and a second spring 110 sleeved on the second positioning shaft 90 and extending left and right, the cutting unit 30 further includes a second button 32 mounted on the housing 20 in a manner of being capable of moving left and right, a second port allowing the second button 32 to be exposed is formed on the left side surface of the housing 20, the second button 32 is located below the first button 410, the second port is located at the lower end of the first port, the two ports are preferably communicated to be the same operation port, the left and right ends of the second spring 110 are respectively abutted to the second button 32 and the positioning frame 60, and the cutter 31 is fixed at the lower end of the second button 32; the front side and the rear side of the positioning frame 60 are provided with second sliding grooves 63 extending left and right, the second sliding grooves 63 are located below the first sliding grooves 61, the left end of each second sliding groove 63 of the positioning frame 60 is provided with a second limiting portion 64, the front end and the rear end of the second button 32 are provided with second sliding block portions 33 in sliding fit with the second sliding grooves 63, and the second sliding block portions 33 can be abutted to the second limiting portions 64. Therefore, after the adhesive tape is adhered and connected, a user presses the second button 32 rightwards at the second port, and the second button 32 drives the cutter 31 to move rightwards to cut off the adhesive tape; after the user releases the second button 32, the second button 32 is driven to move left by the second spring 110 until the second sliding block portion 33 abuts against the second limit portion 64.

In summary, the single-sided tape dispenser according to the present invention can automatically and accurately feed out the tape by pressing the first button 410, which is time-saving and labor-saving in operation. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A single-sided tape dispenser comprising a housing (20), a tape roll (10) rotatably mounted in the housing (20), and a cutting unit (30) mounted in the housing (20), the bottom of the housing (20) being provided with a tape outlet (21) allowing the tape to be removed, the cutting unit (30) having a cutter (31) movable to and fro, characterized in that: the belt moving device is characterized by further comprising a belt moving unit (40) installed on the shell (20), wherein the belt moving unit (40) comprises a rack (41) capable of moving in a reciprocating mode, an operating piece for driving the rack (41) to move in the reciprocating mode, a driving gear (42) and a first driven gear (43) which are installed in the shell (20) in a rotating mode, a driving piece (44) with a pawl portion (441) arranged on the periphery and a driving gear (45) with an inner ratchet portion (451) arranged at the end portion, the driving gear (42), the driving piece (44) and the driving gear (45) are coaxially arranged, the rack (41) is meshed with the driving gear (42), the driving gear (42) is fixed with the driving piece (44), the pawl portion (441) of the driving piece (44) is in transmission fit with the inner ratchet portion (451) of the driving gear (45), and the driving gear (45) is meshed with the first driven gear (43), And a glue passing gap allowing the adhesive tape to pass through is formed between the two.

2. The single-sided tape applicator of claim 1 wherein: the belt winding device further comprises a pulley (50) rotatably mounted in the housing (20), wherein the pulley (50) is located between the belt roll (10) and the driving gear (45), and the pulley (50) is used for being in abutting fit with the belt.

3. The single-sided tape applicator of claim 1 wherein: the tape moving unit (40) further comprises a second driven gear (46) and a third driven gear (47) which are rotatably mounted in the housing (20), and a transmission assembly connected between the first driven gear (43) and the third driven gear (47), wherein the driving gear (45) and the second driven gear (46) are distributed on one side of the adhesive passing gap, the second driven gear (46) is positioned between the driving gear (45) and the adhesive tape outlet (21), the first driven gear (43) and the third driven gear (47) are distributed on the other side of the adhesive passing gap, and the third driven gear (47) is positioned between the first driven gear (43) and the adhesive tape outlet (21).

4. The single-sided tape applicator of claim 3 wherein: the transmission assembly comprises a driving wheel part arranged on a first driven gear (43), a driven wheel part arranged on a third driven gear (47), a transmission belt (48) and a transmission gear (49) rotatably arranged in a shell (20), wherein the transmission belt (48) is sleeved on the periphery of the driving wheel part and the driven wheel part, the transmission gear (49) is meshed with the first driven gear (43), and the transmission gear (49) is meshed with the third driven gear (47).

5. The single-sided tape applicator of claim 1 wherein: still including fixing locating rack (60) in casing (20), being fixed in first locating shaft (70) of locating rack (60) and cover first spring (80) on first locating shaft (70), the operating parts is first button (410), movably installs in casing (20), set up the first port that allows first button (410) to expose on casing (20), the both ends of first spring (80) respectively with first button (410) and locating rack (60) butt, rack (41) are fixed in first button (410).

6. The single-sided tape applicator of claim 5 wherein: the locating rack (60) is provided with a first sliding groove (61) and a first limiting portion (62) located at the end portion of the first sliding groove (61), a first sliding block portion (411) matched with the first sliding groove (61) is arranged on the first button (410), the first sliding block portion (411) can be abutted to the first limiting portion (62), and the rack (41) integrally extends out of the first sliding block portion (411).

7. The single-sided tape applicator of claim 5 wherein: still including being fixed in second location axle (90) of locating rack (60) and second spring (110) of cover on second location axle (90), cut off unit (30) still including movably installing in second button (32) of casing (20), set up the second port that allows second button (32) to expose on casing (20), the both ends of second spring (110) respectively with second button (32) and locating rack (60) butt, cutter (31) are fixed in second button (32).

8. The single-sided tape applicator of claim 7 wherein: the locating rack (60) is provided with a second sliding groove (63) and a second limiting part (64) located at the end part of the second sliding groove (63), a second sliding block part (33) matched with the second sliding groove (63) is arranged on the second button (32), and the second sliding block part (33) can be abutted to the second limiting part (64).

9. The single-sided tape applicator of claim 1 wherein: the bottom of the shell (20) is provided with a downward-convex pressing part (22), and the pressing part (22) is positioned on one side of the adhesive tape outlet (21) and used for pressing the adhesive tape.

10. The single-sided tape applicator of claim 1 wherein: the casing (20) comprises a base (23), an adhesive tape cover (24), a left side cover (25) and a right side cover (26), wherein the adhesive tape cover (24), the left side cover (25) and the right side cover (26) are all covered on the front surface of the base (23), the adhesive tape cover (24) is hinged to the base (23), a first cavity for accommodating the adhesive tape roll (10) is formed between the adhesive tape cover and the base, the left side cover (25) is installed on the base (23), a second cavity for accommodating the cutting unit (30), the operating part, the rack (41), the driving gear (42), the driving part (44) and the driving gear (45) is formed between the left side cover and the base, the right side cover (26) is installed on the base (23), a third cavity for accommodating the first driven gear (43) is formed between the right side cover and the base, and the adhesive tape outlet (21) is formed between the left side cover (25) and the right side cover (26).

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