TWM653098U - Ribbon spindle - Google Patents

Abstract

This invention is a ribbon spindle, which includes a shaft body and an inner ring. The shaft body is provided with perforations running through both ends of the shaft body, and the inner ring is movablely plugged into the perforation and located at both ends of the perforation, so that the inner ring The outer surface of the shaft is in contact and fixed with the hole wall of the perforation, so that the worn inner ring in the shaft body can be movablely removed, and a new inner ring can be inserted again. This eliminates the need to completely replace the previous structure, and is more convenient than the conventional structure. In order to save maintenance costs, the overall durability has been greatly improved.

Description

Ribbon spindle

This creation is a ribbon spindle that is movably installed on the printer, and the ribbon spindle provides a ribbon reel for installation and is used for ribbon discharging or ribbon receiving.

Generally, a printer uses a motor to indirectly drive a runner, so that the runner drives the ribbon reel to rotate, so that the ribbon on the ribbon reel can be fed and retracted. When the ribbon on the ribbon reel passes through the printing mechanism during the displacement process, the die head of the printing mechanism moves to press the ribbon, allowing the ink on the ribbon to be transferred to the packaging, so that the packaging is printed date or other text (such as product name or product model, etc.).

When the printer is actually used, the wheel plays two functions: being indirectly driven by the motor and driving the ribbon reel. It is also one of the more frequently used components. In particular, the runner is movable on the fixed shaft of the printing machine and rotates relative to each other intermittently. This causes friction between the inner diameter surface of the runner and the outer diameter surface of the shaft every time it is used. It is easy to cause wear and even damage the runner after long-term use. Abnormal deflection occurs when being rotated. This situation indirectly affects the inability of the ribbon to be fed and retracted normally. If the ribbon is defective and needs to be replaced with a new one, it will be a high maintenance cost for the industry in the long run.

This invention is a ribbon spindle, which includes a shaft body and an inner ring. The shaft body is provided with perforations running through both ends of the shaft body, and the inner ring is movablely plugged into the perforation and located at both ends of the perforation, so that the inner ring The outer surface is in contact with the hole wall of the perforation.

Through the above structural configuration, the worn inner ring in the shaft body can be movablely removed, and a new inner ring can be inserted again, so that the entire replacement is not required as in the past, and maintenance costs are saved compared to the conventional structure. The overall durability is greatly improved.

1: Ribbon spindle

100: Axis

101:Piercing

102: Main diameter section

103: Small path section

104: Ring level

105: Insertion end

106: Limit end

110: Internal part

120: External coating

130:Adjustment slot

140:Belt groove

150: Groove

200: Inner Ring

301: Fixed shaft

302:C-type buckle

303:Belt

310: Limit inner plate

320: Ribbon reel

321: Ribbon

330:Limited outer disk

400:Shrapnel

The first picture is a three-dimensional schematic diagram of the ribbon main axis combination of this creation.

The second picture is an exploded three-dimensional diagram of the main axis of the ribbon of this creation.

The third figure is a schematic cross-sectional view of the first figure.

The fourth picture is a three-dimensional schematic diagram of the invention in which the ribbon spindle is installed on the fixed shaft of the printer, and the ribbon spindle is installed with the inner limit plate, but without the ribbon reel and the outer limit plate.

The fifth picture is a schematic diagram of the invention in which the ribbon spindle is installed on the fixed shaft, and the ribbon spindle is installed with an inner limiting disk, an outer limiting disk and a ribbon disk.

The sixth figure is a schematic cross-sectional view of the fifth figure.

Please refer to Figures 1 to 3, which reveal a ribbon spindle 1, including a shaft body 100 and an inner ring 200. The shaft body 100 is provided with perforations 101 penetrating both ends of the shaft body 100, and the inner ring 200 has a movable plug. into the through hole 101 and located at both ends of the through hole 101, so that the outer surface of the inner ring 200 and the through hole 101 The hole wall is in contact and fixed. The aforementioned shaft body 100 is generally in the shape of a long hollow circular rod, and in this embodiment, the shaft body 100 and the inner ring 200 are both made of metal.

Through the above structural configuration, the worn inner ring 200 in the shaft body 100 can be movablely removed, and a new inner ring 200 can be inserted again. This eliminates the need to replace the entire shaft as in the past, and is more maintenance-friendly than the conventional structure. The cost improves the overall durability a lot. The aforementioned inner ring 200 may be a single hollow annular component or a composite component (such as a bearing).

Please refer to Figures 4 to 6, which are diagrams of the installation and usage of the ribbon spindle 1 of this invention. In this invention, the ribbon spindle 1 is movablely sleeved on the fixed shaft 301 of the printing machine, and a C-shaped buckle 302 is installed at the end of the fixed shaft 301 to limit the ribbon spindle 1 from being separated from the fixed shaft 301, and is driven by a belt 303 to rotate synchronously. (The aforementioned belt 303 can be driven directly or indirectly by a motor). The ribbon spindle 1 is first connected to the limiting inner disk 310, and then the ribbon reel 320 is installed (this embodiment and the drawings take the ribbon reel 320 with the ribbon 321 wound around it as an example, that is, as the ribbon of the printer) The discharging part 321 can also be used for the ribbon reel 320) of the printer to take up the ribbon 321. Finally, the outer limit plate 330 is installed, so that the two ends of the ribbon reel 320 are respectively limited by the inner limit plate 310 and the limit plate 330. The ink ribbon reel 320 will not be detached from the ink ribbon spindle 1 without being restricted by the outer disk 330 .

It must be noted that the invention only needs to disassemble and install the limit outer disk 330 to replace the ribbon disk 320, without removing the entire ribbon main shaft 1 from the fixed shaft 301, so it has good operational convenience.

The detailed features of the invention and the effects that can be achieved by combining them are further described in detail. The shaft 100 includes an inner part 110 and an outer coating 120, and the outer coating 120 is attached to the outer circumference of the inner part 110 but not to the through hole 101, as shown in the third figure. The outer coating 120 is made of a rust-resistant coating, and the surface of the outer coating 120 is a fine and smooth surface, which can provide the ribbon main shaft 1 with a good protective surface and has the effect of preventing oxidation and rust.

In this embodiment, the thickness of the outer coating 120 in the radial direction of the shaft 100 is smaller than the thickness of the shaft 100 in the radial direction. Through the above structural configuration, the outer coating 120 of this invention adopts a light and thin coating type and does not increase the overall weight of the ribbon main shaft 1 too much, nor does it increase the manufacturing cost of the entire ribbon main shaft 1 too much. It is indeed a well-improved structural configuration.

In this embodiment, the through hole 101 includes a large diameter section 102 and a small diameter section 103. The large diameter section 102 is connected to both ends of the small diameter section 103, and the inner ring 200 is fixed at the position of the large diameter section 102. Through the above-mentioned structural configuration, the inner ring 200 can be temporarily fixed when it is inserted into the large diameter section 102, and the inner ring 200 will not be randomly displaced inward (toward the small diameter section 103).

In this embodiment, the inner diameter of the inner ring 200 is smaller than the radial size of the small diameter section 103; through the above structural configuration, the inner surface of the inner ring 200 is directly in sliding contact with the outer surface of the fixed shaft 301 to provide the ribbon. When the spindle 1 is driven, the inner ring 200 rotates relative to the fixed shaft 301 to prevent the small diameter section 103 from directly rubbing against the fixed shaft 301, thereby ensuring that the shaft body 100 of the ribbon spindle 1 will not directly rub against the fixed shaft 301, so Compared with previous structural types, this invention can indeed provide the ribbon spindle 1 (shaft body 100) with a good service life.

In this embodiment, the axial length of the large diameter section 102 is greater than the axial length of the small diameter section 103 . Through the above structural configuration, the inner ring 200 can be miniaturized, which can avoid increasing the overall excessive weight of the ribbon spindle 1 and avoid the problem of counterweighting when the ribbon spindle 1 is driven to operate.

In this embodiment, the large diameter section 102 has an annular step surface 104 and is connected to the small diameter section 103; and the end surface of the inner ring 200 is in contact with the annular step surface 104. Through the above structural configuration, it not only prevents the inner ring 200 from being arbitrarily displaced inwards, but also has the effect of temporarily stably positioning the inner ring 200 .

In this embodiment, the shaft 100 (inner part 110) and the inner ring 200 are made of different materials; the wear resistance of the inner ring 200 is better than that of the shaft 100. By using the shaft 100 and the inner ring 200 with two different materials, good structural properties are obtained, and better friction and wear resistance is obtained when the inner ring 200 rotates relative to the fixed shaft 301.

In this embodiment, one end of the shaft 100 is the insertion end 105, and the other end of the shaft 100 is the stop end 106; the end edge of the insertion end 105 is in a rounded shape; and the maximum outer diameter of the insertion end 105 is smaller than the maximum outer diameter of the stop end 106. With the above-mentioned structural configuration, the rounded end edge of the insertion end 105 helps the user to better enter the limit inner disk 310, the limit outer disk 330, and the ribbon disk 320 during the installation process, so it has a good guiding installation effect, and the limit inner disk 310, the ribbon disk 320, and the limit outer disk 330 are installed in sequence from the insertion end 105, and the limit inner disk 310 is limited by the stop end 106 to be disengaged outward.

In this embodiment, the shaft body 100 is provided with adjustment grooves 130 arranged at intervals and close to the penetration end 105, and the shaft body 100 is provided with a belt groove 140 on the circumference side close to the limiting end 106; the aforementioned adjustment grooves The cross section of 130 (along the axial direction of the shaft 100) is in a rectangular shape; the cross section of the belt groove 140 (along the axial direction of the shaft 100) is in a rectangular shape. The aforementioned belt groove 140 is in a rectangular shape and can be used by the planar belt 303. It not only has a good friction driving effect, but also has a good cleaning effect. The aforementioned adjustment grooves 130 arranged at intervals can be used for the ribbon reels 320 (ribbon 321) of several width sizes. According to the width of the ribbon 321, the appropriate position of the adjustment grooves 130 is selected to limit the position of the ribbon reel 320 on the ribbon. The spindle 1 is axially displaced, and its rectangular cross-section adjustment groove 130 can be used for stable snap-fitting of the limiting mechanism of the limiting outer disk 330 .

In this embodiment, opposite grooves 150 are provided on the peripheral side of the shaft body 100, and elastic pieces 400 are provided in each group of the grooves 150. Through the above structural configuration, the elastic piece 400 can resist the inner diameter surface position of the ribbon reel 320 under normal stretching, thereby preventing the ribbon reel 320 from detaching.

1: Ribbon spindle

100: Shaft body

101:Piercing

102: Main diameter section

105: Penetration end

106: Limit end

130: Adjustment slot

140:Belt groove

150: Groove

200: Inner Ring

400:Shrapnel

Claims (10)

A ribbon main shaft includes a shaft body and an inner ring, wherein the shaft body is provided with through holes penetrating through its two ends, and the inner ring is movably inserted into the through holes and located at the two ends of the through holes, so that the outer surface of the inner ring is in contact with and fixed to the hole wall of the through hole. The ribbon spindle of claim 1, wherein the shaft body includes an inner part and an outer coating, and the outer coating is attached around the outer peripheral side of the inner part but not attached to the through hole. The ribbon main shaft as described in claim 2, wherein the thickness dimension of the outer coating in the radial direction of the shaft is smaller than the thickness dimension of the shaft in the radial direction. The ribbon main shaft as described in claim 1, wherein the perforation includes a large diameter section and a small diameter section, the large diameter section is connected to the two ends of the small diameter section, and the inner ring is fixed at the position of the large diameter section. The ribbon spindle of claim 4, wherein the inner diameter of the inner ring is smaller than the radial dimension of the small diameter section; the axial length of the large diameter section is larger than the axial length of the small diameter section. The ribbon main shaft as described in claim 4, wherein the large diameter segment has an annular step and is connected to the small diameter segment; and the end surface of the inner ring is in contact with the annular step. The ribbon main shaft as described in claim 1, wherein the shaft and the inner ring are made of different materials; the wear resistance of the inner ring is better than the wear resistance of the shaft. The ribbon spindle of claim 1, wherein one end of the shaft is a penetrating end, and the other end of the shaft is a limiting end; the end edge of the penetrating end is in a rounded shape. The ribbon spindle of claim 8, wherein the shaft body is provided with adjustment grooves arranged at intervals and close to the penetration end, and the shaft body is provided with belt grooves on the circumference side and is close to the limit end; the aforementioned adjustment The cross section of the groove is in a rectangular shape; the cross section of the aforementioned belt groove is in a rectangular shape. The ribbon spindle according to claim 1, wherein the peripheral side of the shaft body is provided with opposite grooves, and each group of the grooves is provided with elastic pieces.

Images