CROSS-REFERENCE TO RELATED APPLICATION
This application claims the priority of Chinese patent application No. 202121846473.5, filed on Aug. 9, 2021, which is incorporated herewith by reference.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a tape cutting device, and more particularly, to a one-piece tape cutting device.
2. The Prior Arts
The conventional tape cutting devices come with a variety of structures due to functional requirements or cost requirements. It is common to integrate the pressing plate with the tape pressing part, or integrate the tape shaft with the tape pressing part; however, the integrated parts are still connected with other parts by fasteners, and not all parts are integrated.
Due to the use of fasteners for connection in the conventional tape cutting devices, there is a problem of falling off during use, which affects the function, and the scattered parts may be lost before assembled together again, so as to affect the usage.
SUMMARY OF THE INVENTION
In order to overcome the problems of the conventional tape cutting device, the present invention provides a one-piece tape cutting device, which has a tape shaft, a tape pressing part, a cutting part, a tape supporting part, a side plate, and a pressing plate, and all the components are integrally formed and are not connected by any fasteners. In particular, the pressing plate naturally leans towards the tape shaft and has elasticity, so that the pressing plate can adapt to various thicknesses of tape rolls and solve the problem of missing parts or unsmooth usage in the conventional tape cutting devices.
The technical scheme adopted by the present invention to solve the technical problem is: a one-piece tape cutting device, applicable to pressing and cutting a tape when sealing a box, which is characterized by: a tape shaft; a tape pressing part, the tape pressing part having a pressing surface; a cutting part, disposed at a proper position outside the pressing surface of the tape pressing part, used for cutting a used for cutting a tape; and a tape supporting part, disposed between the tape shaft and the tape pressing part, and with a preset gap from both the tape shaft and the tape pressing part, used for supporting the tape, so that end of the tape being kept in the vicinity of the adhesive tape pressing part, and not sticking back; a side plate, for connecting one end of the tape shaft, the tape supporting part and the tape pressing part to each other through the side plate; a pressing plate, not connected to the side plate, with one end connected to the tape pressing part at an appropriate place, and the other end naturally abutted toward the tape shaft and being disposed with an anti-dislodging gear piece at the opposite surface of the side plate, the pressing plate having elasticity, and having an adjustable distance between the pressing plate and the tape shaft; wherein the tape shaft, the tape pressing part, the cutting part, the tape supporting part, the side plate, and the pressing plate are all integrally formed without any fasteners; the tape is sleeved on the outside of the tape shaft from the opposite side of the side plate, the pressing plate is stretched by the tape and away from the tape shaft, so that the tape is pressed by the pressing plate and does not rotate, the tape is restricted by the anti-dislodging gear piece and does not disengage, and the end of the tape is pulled through the gap between the tape supporting part and the tape pressing part, and non-adhesive surface of the tape faces the tape pressing part, and the cutting part can cut through the tape.
Preferably, the pressing surface is an arc surface or a conical surface.
Preferably, the tape supporting part has a reverse-hook shape.
Preferably, an elastic piece is disposed outside the tape shaft.
Preferably, the tape supporting part has a lateral length greater than a half of a lateral width of the pressing surface, and the gap between the pressing surface and the tape supporting part has a minimum distance 1-2 mm to more effectively prevent the tape from sticking back.
The beneficial effect of the present invention is that the present invention can avoid the problem that the missing parts or unsmooth usage of the conventional tape cutting device, and the monolithic molding can greatly reduce the cost and increase the stability of use.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be apparent to those skilled in the art by reading the following detailed description of a preferred embodiment thereof, with reference to the attached drawings, in which:
FIG. 1 is a schematic view of a first embodiment of the present invention;
FIG. 2 is a schematic view of another angle of the first embodiment of the present invention;
FIG. 3 is a schematic view of a third angle of the first embodiment of the present invention;
FIG. 4 is a schematic view of the third angle of the first embodiment of the present invention with tape installed; and
FIG. 5 is a schematic view of a fourth angle of the first embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
Embodiments of the present invention will be described below with reference to FIGS. 1 to 5. The following description is not intended to limit the embodiments of the present invention, but is an example of the present invention.
As shown in FIGS. 1 to 5, a one-piece tape cutting device of the first embodiment of the present invention is used for pressing and cutting a tape 2 when sealing a box, including: a tape shaft 11; a tape pressing part 12, the tape pressing part 12 has a pressing surface 121; a cutting part 13, the cutting part 13 is used for cutting the tape 2, and is disposed at a proper position on the outer side of the pressing surface 121 of the pressing part 12; a tape supporting part 14, the tape supporting part 14 is disposed between the tape shaft 11 and the tape pressing part 12, and separated from both with a preset gap; the tape supporting part 14 is used to support the tape 2, so that the end 21 of the tape 2 is kept near the tape pressing part 12 and will not stick back to the tape 2; a side plate 15, wherein one of each of the tape shaft 11, the tape supporting part 14 and the tape pressing part 12 are connected to each other through the side plate 15; and a pressing plate 16, the pressing plate is not connected to the side plate 15, one end of 16 is connected to the tape pressing part 12 at a proper position, the other end of the pressing plate 16 is naturally abutted toward the tape shaft 11, an anti-dislodging gear piece at the opposite surface of the side plate 15, the pressing plate 16 has elasticity, and the distance between the pressing plate 16 and the tape shaft 11 is adjustable; wherein, the tape shaft 11, the tape pressing part 12, the cutting part 13, the tape supporting part 14, the side plate 15, and the pressing plate 16 are all integrally formed without any fasteners; the tape 2 is sleeved on the outer side of the tape 11 from the opposite side of the side plate 15, the pressing plate 16 is stretched by the tape 2 and away from the tape shaft 11, so that the tape 2 is pressed by the pressing plate 16 and does not rotate, the tape 2 is restricted by the anti-dislodging gear piece 161 and does not disengage, and the end 21 of the tape 2 is pulled through the gap between the tape supporting part 14 and the tape pressing part 12, and non-adhesive surface of the tape 2 faces the tape pressing part 12, and the cutting part can cut through the tape 2. The present invention is to manufacture the tape cutting device into one-piece, without any assembly problems and assembly cost. By utilizing the natural elasticity of the pressing plate 16, the pressing plate 16 is naturally abutted towards the tape shaft 11. When the tape 2 is placed, the elasticity of the pressing plate 16 will naturally hold the tape 2. When the end 21 of the tape 2 is pulled, the elasticity of the pressing board 16 causes the pressing plate 16 to be repeatedly bounced and pressed by the tape 2. Therefore, the tape 2 can move smoothly, and the pressing plate 16 can effectively work with the rotation, pressing and holding the tape 2. When cutting the tape 2, the pressing plate 16 is pressed to stop the rotation of the tape 2, and the anti-dislodging gear piece 161 restricts the tape 2 to the outer side of the tape 2 without disengagement.
As shown in FIG. 1, the pressing surface 121 of the first embodiment of the present invention is an arc-shaped surface, so that in the process of rolling the tape 2, that is, the process of sticking the tape 2 to the object, the tape 2 is more easily attached to the object by the pressing of the pressing surface 121, and the rolling of the tape 2 is smoother. The pressing surface 121 in the present embodiment is mainly used to press and stick the tape 2 to the object, so that the attachment of the tape 2 and the object are tighter. Therefore, other shapes of the pressing surface 121 that can achieve this purpose can also be used, such as conical surfaces, etc.
As shown in FIG. 3, the tape supporting part 14 according to the first embodiment of the present invention is in the shape of a reverse-hook. After the tape 2 is cut by the cutting part 13, contact of the tape 2 and the tape supporting part 14 is at the end of the reverse-hook, which is mainly to maintain the supporting of the tape 2, and to minimize the contact surface with the tape 2. The tape supporting part 14 in the present embodiment is in the shape of a reverse-hook, with the end near the tape pressing part 12 longer, and the end near the tape shaft 11 short. In practical applications, the gap between the tape supporting part 14 and the tape pressing part 12 is controlled to be the minimum distance that allows the tape 2 to pass through and slide smoothly. The best condition is that after the tape 2 is cut by the cutting part 13, only the long end of the reverse-hook of the tape supporting part 14 in contact with the tape 2, and the short end is reserved as backup. In general, the tape 2 will not be in contact with the tape supporting part 14 when in the rolling process. Preferably, as shown in FIG. 5, the tape supporting part 14 has a lateral length L1 greater than a half of a lateral width L2 of the pressing surface 121, and the gap D between the pressing surface 121 and the tape supporting part 14 has a minimum distance 1-2 mm to more effectively prevent the tape from sticking back.
As shown in FIG. 4, the tape shaft 11 of the first embodiment of the present invention is provided with an elastic piece 111 outward, and the elastic piece 111 can adapt to the tape 2 of various inner diameters to increase the relative fixing force between the shaft 11 and the tape. The. The elastic piece 111 in the present embodiment is a small square piece that is arranged along an appropriate direction on outer side the tape shaft 11, and the small square piece can be integrated with the tape shaft. In addition, the elastic piece 111 can be an independent piece and then connected to the on the tape shaft 11.
Although the present invention has been described with reference to the preferred embodiments thereof, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the present invention which is intended to be defined by the appended claims.
Patent Application
20230038807
