CN211222631U

CN211222631U - Inner gear structure of ink-jet printer spindle ribbon cartridge

Info

Publication number: CN211222631U
Application number: CN201922003878.1U
Authority: CN
Inventors: 苏日滔; 苏豪祖
Original assignee: Shenzhen Lianhe Xinglong Plastic Products Co ltd
Current assignee: Shenzhen Lianhe Xinglong Plastic Products Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-11
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses an ink jet printer main shaft ribbon cartridge internal gear structure relates to the gear drive field, including main shaft, gear end, a transmission system and gear end limit connection are passed through to the one end of main shaft, transmission system includes a prism, the spacing axle of friction, prismatic one end extends into the inside of main shaft, the one end of the spacing axle of friction extends into the inside of gear end, and the spacing axle of friction and gear end interference fit, the spacing axle of friction extends into the one end in the gear end and has seted up a holding tank, the inside of holding tank is provided with a T shape stopper, the one end and the holding tank of T shape stopper rotate to be connected, a T shape spacing groove has been seted up to the inner wall of gear end, the other end of T shape stopper extends into the inside of T shape spacing groove. The internal gear structure for the ink-jet printer spindle ribbon cartridge solves the problems that when the conditions that a ribbon cartridge is clamped and the like occur, a printer spindle is damaged, and the service life of a printer is influenced.

Description

Inner gear structure of ink-jet printer spindle ribbon cartridge

Technical Field

The utility model relates to a gear drive field specifically is an ink jet printer main shaft ribbon cartridge internal gear structure.

Background

The stylus printer is printed by adopting a needle head through a ribbon, a gear for driving the ribbon to move is arranged in a ribbon box of the printer except the ribbon and comprises a driving gear and a driven gear, the driving gear extends out of the ribbon box and is coaxially connected with a movement main shaft of the printer, the driving gear is driven by the printer main shaft to rotate, then the driving gear drives the driven gear to drive the ribbon to rotate, so that the printing work is finished, and in the actual use of the printer, a user does not know the condition or the service life of the ribbon frequently;

when the ribbon is printed in improper use and overloaded or the ribbon cassette is jammed and broken, the main shaft of the printer still rotates, if the worker fails to close the printer in time, considerable damage can be caused to the main shaft of the printer, and the service life of the printer can be greatly influenced.

Disclosure of Invention

Technical problem to be solved

Not enough to prior art, the utility model provides an ink jet printer main shaft ribbon cartridge internal gear structure has solved when the typewriter ribbon is in misuse, printing overload or when the condition such as ribbon cartridge cassette, fracture appears, and the printer main shaft is still rotating, if the staff fails in time to close the printer, can cause considerable harm to the printer main shaft, can influence the problem in the life-span of printer greatly.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: including main shaft, gear end, a transmission system and gear end spacing connection are passed through to the one end of main shaft, transmission system includes a prism, the spacing axle of friction, prismatic one end extends into the inside of main shaft, the one end of the spacing axle of friction extends into the inside of gear end, and the spacing axle of friction and gear end interference fit, the spacing axle of friction extends into the one end in the gear end and has seted up a holding tank, the inside of holding tank is provided with a T shape stopper, the one end and the holding tank rotation of T shape stopper are connected, a T shape spacing groove has been seted up to the inner wall of gear end, the other end of T shape stopper extends into the inside of T shape spacing groove.

Preferably, one end of the spindle is provided with a prismatic hole, and the prism is in limit connection with the spindle through the prismatic hole matched with the prism.

Preferably, the T-shaped limiting block extends into the accommodating groove, a spring is arranged on the periphery of one end of the accommodating groove, and two ends of the spring are fixedly connected with the T-shaped limiting block and the accommodating groove respectively.

Preferably, one side of one end of the T-shaped limiting block, which extends into the T-shaped limiting groove, is fixedly connected with a pressure switch.

(III) advantageous effects

The utility model provides an internal gear structure of ink jet printer main shaft ribbon cartridge. The method has the following beneficial effects:

(1) this a be used for internal gear structure of inkjet printer main shaft ribbon cassette, through transmission system and gear end interference fit, the one end that the spacing axle of friction extends into the gear end is provided with pressure switch's mating reaction, when making equipment normal operating, the spacing axle of friction drives the gear end and rotates, when taking place the cassette, the rotational speed of the spacing axle of friction surpasses the gear end, slow down the torsion that the main shaft need bear, pressure switch starts afterwards, the power is turned off, solved when the typewriter ribbon is improper in the use, print overload or the ribbon cassette appears, during the condition such as fracture, the printer main shaft still rotates, if the staff fails in time to close the printer, can cause considerable harm to the printer main shaft, can influence the problem in the life-span of printer greatly.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the internal structure of the present invention;

fig. 3 is a schematic diagram of the transmission system of the present invention.

In the figure: 1. a main shaft; 2. a transmission system; 21. a friction limiting shaft; 211. accommodating grooves; 212. a T-shaped limiting block; 213. a spring; 214. a pressure switch; 22. a prism; 3. a gear end; 31. t shape spacing groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: in order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the friction limiting device comprises a main shaft 1 and a gear end 3, wherein the main shaft 1 drives equipment to operate, the gear end 3 drives, one end of the main shaft 1 is in limit connection with the gear end 3 through a transmission system 2, the transmission system 2 transmits power of the main shaft 1 to the gear end 3, the transmission system 2 comprises a prism 22 and a friction limiting shaft 21, one end of the prism 22 extends into the main shaft 1, one end of the main shaft 1 is provided with a prism hole, the prism 22 is in limit connection with the main shaft 1 through the prism hole matched with the prism 22, through the cooperation of the prism hole and the prism 22, the friction limiting shaft 21 can be quickly and conveniently replaced after the transmission system 2 is damaged, one end of the friction limiting shaft 21 extends into the gear end 3, the friction limiting shaft 21 is in interference fit with the gear end 3, the resistance between the friction limiting shaft 21 and the gear end 3 is greater than the reverse resistance generated when the equipment normally operates and is less than the resistance generated when a chuck, the instantaneous resistance becomes large, when the resistance between the friction limiting shaft 21 and the gear end 3 is exceeded, the friction limiting shaft 21 automatically rotates to separate from the gear end 3, the torsion force required to be borne by the main shaft 1 is reduced, the periphery of the friction limiting shaft 21 and the inside of the gear end 3 are both of a frosted structure, the friction force between the friction limiting shaft 21 and the gear end 3 is increased, one end of the friction limiting shaft 21 extending into the gear end 3 is provided with an accommodating groove 211, a T-shaped limiting block 212 is arranged inside the accommodating groove 211, one end of the T-shaped limiting block 212 is rotatably connected with the accommodating groove 211, a spring 213 is arranged on the periphery of one end of the T-shaped limiting block 212 extending into the accommodating groove 211, two ends of the spring 213 are respectively fixedly connected with the T-shaped limiting block 212 and the accommodating groove 211, the spring 213 limits the T-shaped limiting block 212, the T-shaped limiting block 212 rotates along with the main shaft 1, and the spring 213 can drive the T-shaped limiting block, a T shape spacing groove 31 has been seted up to gear end 3's inner wall, T shape stopper 212's the other end extends into the inside of T shape spacing groove 31, T shape stopper 212 extends into one side fixedly connected with pressure switch 214 of T shape spacing inslot 31 one end, pressure switch 214 is prior art, TL0515 can be chooseed for use to the model, pressure switch 214 is connected with switch electricity, when main shaft 1 is inconsistent with gear end 3's rotational speed, T shape stopper 212 is close to each other with T shape spacing groove 31's inner wall, make pressure switch 214 receive the extrusion and open, close the equipment power.

When the main shaft 1 stops rotating, the instantaneous resistance is suddenly increased, the rotating speed of the friction limiting shaft 21 exceeds the gear end 3 under the influence of the resistance, the T-shaped limiting block 212 is driven by the friction limiting shaft 21 to contact with the inner wall of the T-shaped limiting groove 31, the pressure switch 214 on the T-shaped limiting groove 31 is triggered, the power supply is automatically turned off by the pressure switch 214, and when the main shaft 1 stops rotating, the spring 213 drives the T-shaped limiting block 212 to reset.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an ink jet printer main shaft ribbon cartridge internal gear structure which characterized in that: comprises a main shaft (1) and a gear end (3);

one end of the main shaft (1) is in limit connection with the gear end (3) through a transmission system (2);

the transmission system (2) comprises a prism (22) and a friction limiting shaft (21), one end of the prism (22) extends into the main shaft (1), one end of the friction limiting shaft (21) extends into the gear end (3), and the friction limiting shaft (21) is in interference fit with the gear end (3);

spacing axle of friction (21) extend into gear end (3) one end in seted up an holding tank (211), the inside of holding tank (211) is provided with a T shape stopper (212), the one end and the holding tank (211) of T shape stopper (212) rotate and are connected, a T shape spacing groove (31) have been seted up to the inner wall of gear end (3), the other end of T shape stopper (212) extends into the inside of T shape spacing groove (31).

2. The internal gear structure of an ink-jet printer spindle ribbon cartridge according to claim 1, wherein: a prismatic hole is formed in one end of the main shaft (1), and the prism (22) is connected with the main shaft (1) in a limiting mode through the prismatic hole matched with the prism.

3. The internal gear structure of an ink-jet printer spindle ribbon cartridge according to claim 1, wherein: the T-shaped limiting block (212) extends into the accommodating groove (211), a spring (213) is arranged on the peripheral side of one end of the T-shaped limiting block (212), and two ends of the spring (213) are fixedly connected with the T-shaped limiting block (212) and the accommodating groove (211) respectively.

4. The internal gear structure of an ink-jet printer spindle ribbon cartridge according to claim 1, wherein: one side of one end of the T-shaped limiting block (212) extending into the T-shaped limiting groove (31) is fixedly connected with a pressure switch (214).