CN217197522U - A prevent static structure and printer for printing apparatus - Google Patents

Abstract

The utility model provides a prevent static structure for printing apparatus, include: the paper cutter comprises a conductive piece, a circuit board, a paper cutter, a head piece assembly and a rubber roller positioning piece; the head piece spring of the head piece assembly is in conductive connection with the rubber roller positioning piece, and the conductive piece is provided with an installation part in conductive connection with the rubber roller positioning piece and two extension ends connected with the installation part; one of the extension ends is in conductive connection with the paper cutter, and the other extension end is in conductive connection with the circuit board. The anti-static structure can lead out static at multiple positions through one component, and simplifies the number of parts and the structure. The utility model also provides a printer, used as above prevent static structure.

Description

A prevent static structure and printer for printing apparatus

Technical Field

The utility model relates to an office supplies especially relates to the printer.

Background

The printer prints the during operation in succession under dry environment, the motor, the cutter and beat key parts such as printer head all easily produce a large amount of static, the accumulation of static can lead to the motor in a large number, the cutter reaches the key parts such as printer head and damages to reduce the life of printer, consequently, current printer is generally exported static through many earth connections of being connected with each key part, so set up not only make the printer walk the line in a jumble, be unfavorable for maintaining, and reduced the assembly efficiency of printer. And static on the printing head piece, the printing paper tearing knife and the printing component metal piece of the traditional printer all need to be grounded by a plurality of static conducting schemes respectively, so that the number of parts is large and the parts are not easy to assemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the main technical problem that a prevent static structure for printing apparatus is provided, just can derive the static of many places through a part, simplify part quantity and structure.

The utility model provides a prevent static structure for printing apparatus, include: the paper cutter comprises a conductive piece, a circuit board, a paper cutter, a head piece assembly and a rubber roll positioning piece;

the head piece spring of the head piece assembly is in conductive connection with the rubber roller positioning piece, and the conductive piece is provided with an installation part in conductive connection with the rubber roller positioning piece and two extension ends connected with the installation part; one of the extension ends is in conductive connection with the paper cutter, and the other extension end is in conductive connection with the circuit board.

In a preferred embodiment: two extension ends of the conductive piece are bent and then fixed on the upper surface and the lower surface of the machine core support.

In a preferred embodiment: the upper surface and the lower surface of the movement bracket are provided with clamping grooves clamped with the extension ends.

In a preferred embodiment: the conductive piece is a wire spring, and the installation part is a spiral section formed by bending and is sleeved on the rubber roll positioning piece.

In a preferred embodiment: the extension end of the conductive piece, which is in conductive connection with the circuit board, is an elastic end formed by bending.

In a preferred embodiment: the extension end of the conductive piece, which is electrically connected with the paper cutter, penetrates through the clamping groove and then is bent towards the direction close to the movement bracket.

In a preferred embodiment: the rubber roll positioning piece comprises a rubber roll clamping hook and a clamping hook rotating shaft; the clamping hook rotating shaft is used for driving the rubber roll clamping hook to swing so as to enable the rubber roll clamping hook to be in limit fit with the rubber roll or remove the limit fit.

In a preferred embodiment: the rubber roller comprises a printing rubber roller and a rubber roller shaft sleeve; the printing rubber roller comprises a conductive shaft body and an insulating sheath wrapped outside the conductive shaft body; the two ends of the conductive shaft body along the axial direction protrude outwards and are in conductive connection with the insulating outer skin and the rubber roll shaft sleeve;

when the rubber roll clamping hook is in limit fit with the rubber roll shaft sleeve, the rubber roll clamping hook is in conductive connection with the rubber roll shaft sleeve.

In a preferred embodiment: the rubber roller clamping hook comprises two limiting parts and a connecting part connected between the limiting parts; the limiting parts are respectively used for limiting and matching with the two rubber roll shaft sleeves or releasing the limiting and matching;

the connecting portion is provided with a positioning groove for positioning the head piece spring.

The utility model also provides a printing apparatus has used as above prevent static structure.

Compared with the prior art, the technical scheme of the utility model following beneficial effect possesses:

the utility model provides a prevent static structure for printing apparatus, electrically conductive piece is the wire spring. After the assembly of the engine assembly is completed, in order to avoid the falling of the rotating shaft of the engine assembly in the production operation process, the wire spring plays a pre-tightening role and prevents the falling of the rotating shaft. When the assembly of paper tearing knife is completed, the paper tearing knife contacts with the extension end of the wire spring, and the extension end of the wire spring is in conductive connection with the circuit board, so that the paper tearing knife is conducted with the copper exposure area of the circuit board to complete grounding, and static electricity on the paper tearing knife can be everywhere through the circuit board. After the clamping hook rotating shaft is assembled, the head piece spring is contacted with the head piece assembly, so that static electricity on the head piece assembly can be led into the rubber roll clamping hook through the head piece spring, and then is led into the clamping hook rotating shaft through the rubber roll clamping hook and then is led into the wire spring, so that the static electricity of the head piece assembly is led away, and the static electricity screw used on the head piece assembly originally can be cancelled, and parts are saved. The static on the rubber roller can also be guided away, the shaft body of the rubber roller is made of metal, and the shaft sleeve of the rubber roller is also made of metal. After the cover is closed, the shaft body, the rubber roller shaft sleeve, the rubber roller clamping hook and the wire spring are also conducted, so that static electricity on the rubber roller is conducted away. Therefore, the structure ensures that all static electricity can be conducted away by using 1 conductive piece, has simple structure, saves a plurality of parts, and has the functions of clamping and preventing the shaft of the movement assembly from falling off.

Drawings

Fig. 1 is a perspective view of a conductive member in a preferred embodiment of the present invention;

fig. 2 is a perspective view of an antistatic structure according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a conductive member and a circuit board according to a preferred embodiment of the present invention;

fig. 4 is a schematic view illustrating the installation of the conductive member according to the preferred embodiment of the present invention.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be a wall-mounted connection, a detachable connection, or an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention in a specific case.

Referring to fig. 1 to 4, the present embodiment provides a printing apparatus to which an antistatic structure as described below is applied, the antistatic structure including: the device comprises a conductive piece 1, a circuit board 2, a paper cutter 3, a head piece assembly 4 and a rubber roller positioning piece 5;

the head spring 41 of the head piece assembly 4 is in conductive connection with the rubber roller positioning piece 5, and the conductive piece 1 is provided with an installation part 11 in conductive connection with the rubber roller positioning piece 5 and two extension ends 12 and 13 connected with the installation part 11; one of the extending ends 12 is electrically connected with the paper cutter 3, and the other extending end 13 is electrically connected with the circuit board 2.

In this embodiment, in order to mount the conductive member 1, the two extending ends 12 and 13 of the conductive member 1 are bent and fixed to the upper surface and the lower surface of the movement bracket 6. And, the upper surface and lower surface of the said inner works support 6 have card cage 61 with said extension end 12, 13 joint. The two extending ends 12, 13 of the conductive member 1 are fixed in the slot 61, and the conductive member 1 is fixed.

Specifically, the conductive piece 1 is a wire spring, and the installation part 11 is a bent spiral section and sleeved on the rubber roller positioning piece 5. Thus, both ends and the middle portion of the wire spring are fixed, so that the installation stability of the conductive member 1 can be ensured.

In order to ensure the conductive connection stability of the conductive member 1 and the circuit board 2, the extending end 13 of the conductive member 1 and the circuit board 2 is a bent elastic end. The extension end 13 of the conductive member 1 connected to the circuit board 2 is shaped like a tower spring, which is similar to the spring structure of the battery chamber cathode, so that the stability of the electrical connection between the tower spring and the circuit board 2 can be ensured.

In order to further increase the installation stability of the conductive device 1, the extending end 12 of the conductive device 1, which is electrically connected with the paper cutter 3, is bent towards the direction close to the movement bracket 6 after passing through the clamping groove 61. Therefore, the extension end 12 of the conductive piece 1 electrically connected with the paper cutter 3 is clamped in the clamping groove 61 and is hooked with the movement bracket 6 through a hook formed by bending, so that the extension end is not easy to fall off.

In this embodiment, the rubber roller positioning part 5 includes a rubber roller hook 51 and a hook rotating shaft 52; the mounting part 11 is sleeved on the hook rotating shaft 52. The hook rotating shaft 52 is used for driving the rubber roller hook 51 to swing so that the rubber roller hook 51 is in limit fit with the rubber roller 7 or is released from the limit fit.

In order to realize the conductive connection between the conductive piece 1 and the rubber roller 7, the rubber roller 7 comprises a printing rubber roller 71 and a rubber roller shaft sleeve 72; the printing rubber roller 71 comprises a conductive shaft body and an insulating sheath wrapped outside the conductive shaft body; the two ends of the conductive shaft body along the axial direction protrude outwards to be connected with the insulating sheath and the rubber roller shaft sleeve 72 in a conductive mode; when the rubber roller hook 51 is in limit fit with the rubber roller shaft sleeve 72, the rubber roller hook 51 is in conductive connection with the rubber roller shaft sleeve 72. Thus, the conductive shaft body is conductively connected with the rubber roll shaft sleeve 72, the rubber roll shaft sleeve 72 is conductively connected with the rubber roll hook 51, and the rubber roll hook 51 is conductively connected with the conductive piece 1 through the hook rotating shaft 52.

Foretell an antistatic structure for printing equipment, after the assembly of engine assembly was accomplished, in order to avoid the pivot of engine assembly to drop among the production operation process, the wire spring plays the pretension effect, prevents that the pivot from droing. When the assembly of paper tearing sword was accomplished, paper tearing sword and the extension end contact of line spring, the extension end in addition of line spring and 2 electrically conductive connections of circuit board to realize paper tearing sword and circuit board 2's dew copper district and switch on and accomplish ground connection, static on the paper tearing sword just can be everywhere through circuit board 2. After the hook rotating shaft is assembled, the head piece spring 41 is contacted with the head piece assembly 4, so that static electricity on the head piece assembly 4 can be guided into the rubber roll hook through the head piece spring 41, and then is guided into the hook rotating shaft 52 through the rubber roll hook and then is guided into the wire spring, so that the static electricity of the head piece assembly 4 is guided away, and a static electricity screw used on the original head piece assembly 4 can be cancelled, and parts are saved. The static electricity on the rubber roller can also be guided away, the shaft body of the rubber roller is made of metal, and the shaft sleeve of the rubber roller is also made of metal. After the cover is closed, the shaft body, the rubber roll shaft sleeve, the rubber roll clamping hook 51, the clamping hook rotating shaft 52 and the wire spring are also conducted, so that static electricity on the rubber roll is conducted away. Therefore, the structure ensures that all static electricity can be conducted away by using 1 conductive piece 1, has simple structure, saves a plurality of parts, and has the functions of clamping and preventing the shaft of the movement assembly from falling off.

In this embodiment, the rubber roller hook 51 includes two limiting portions 511 and a connecting portion 512 connected between the limiting portions 511; the limiting parts 511 are respectively used for limiting and matching with the two rubber roller shaft sleeves 42 or releasing the limiting and matching; the connecting portion 512 is provided with a positioning groove for positioning the head piece spring 41.

The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.

Claims (10)

1. An antistatic structure for a printing apparatus, characterized by comprising: the paper cutter comprises a conductive piece, a circuit board, a paper cutter, a head piece assembly and a rubber roller positioning piece;

the head piece spring of the head piece assembly is in conductive connection with the rubber roller positioning piece, and the conductive piece is provided with an installation part in conductive connection with the rubber roller positioning piece and two extension ends connected with the installation part; one of the extension ends is in conductive connection with the paper cutter, and the other extension end is in conductive connection with the circuit board.

2. An antistatic structure for a printing apparatus according to claim 1, characterized in that: and the two extending ends of the conductive piece are bent and then fixed on the upper surface and the lower surface of the machine core bracket.

3. An antistatic structure for a printing apparatus according to claim 2, characterized in that: the upper surface and the lower surface of the movement bracket are provided with clamping grooves clamped with the extension ends.

4. An antistatic structure for a printing apparatus according to claim 3, characterized in that: the conductive piece is a wire spring, and the installation part is a spiral section formed by bending and is sleeved on the rubber roll positioning piece.

5. An antistatic structure for a printing apparatus according to claim 4, wherein: the extension end of the conductive piece, which is in conductive connection with the circuit board, is an elastic end formed by bending.

6. An antistatic structure for a printing apparatus according to claim 4, wherein: the extension end of the conductive piece, which is electrically connected with the paper cutter, penetrates through the clamping groove and then bends towards the direction close to the movement bracket.

7. An antistatic structure for a printing apparatus according to any one of claims 1-6, characterized in that: the rubber roll positioning piece comprises a rubber roll clamping hook and a clamping hook rotating shaft; the clamping hook rotating shaft is used for driving the rubber roll clamping hook to swing so as to enable the rubber roll clamping hook to be in limit fit with the rubber roll or remove the limit fit.

8. An antistatic structure for a printing apparatus according to claim 7, wherein: the rubber roller comprises a printing rubber roller and a rubber roller shaft sleeve; the printing rubber roller comprises a conductive shaft body and an insulating sheath wrapped outside the conductive shaft body; the two ends of the conductive shaft body along the axial direction protrude outwards and are in conductive connection with the insulating outer skin and the rubber roll shaft sleeve;

when the rubber roll clamping hook is in limit fit with the rubber roll shaft sleeve, the rubber roll clamping hook is in conductive connection with the rubber roll shaft sleeve.

9. An antistatic structure for a printing apparatus according to claim 7, wherein: the rubber roller clamping hook comprises two limiting parts and a connecting part connected between the limiting parts; the limiting parts are respectively used for limiting and matching with the two rubber roll shaft sleeves or releasing the limiting and matching;

the connecting portion is provided with a positioning groove for positioning the head piece spring.

10. A printer characterized by using the antistatic structure as claimed in any one of claims 1 to 9.

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