CN222973033U - A thermal print head frame structure - Google Patents

Abstract

The application relates to the field of thermal printers and discloses a thermal printer frame structure, which comprises a frame, wherein rectangular grooves are formed in two ends of the top surface of the frame, rectangular blocks are arranged in the two rectangular grooves, a shaft rod is arranged between the two rectangular blocks in a penetrating way through a bearing, a printing head assembly is arranged on the outer wall of the shaft rod through a bearing sleeve, a rubber roller is arranged on the outer wall of the shaft rod in the printing head assembly in a sleeved way, a motor is arranged on the inner bottom surface of the frame, the output end of the motor penetrates through the frame, a first gear is arranged in the outwards extending way in a sleeved way, and the first gear is connected with a second gear in a meshed way.

Description

Thermal printhead frame structure

Technical Field

The application relates to the field of thermal printers, in particular to a thermal printhead rack structure.

Background

At present, the positioning structure of the traditional bar code printer thermal printing head comprises a printing head fixing plate, the printing head fixing plate is tightly matched with a printing head positioning shaft, manufacturing errors of related parts are adjusted through screws on the printing head positioning shaft, so that the distance between the thermal printing head and a paper feeding rubber roller is guaranteed, but the design assembly difficulty is high, the adjustment time is long during mass production, an installer cannot easily determine whether the position between the thermal printing head and the paper feeding rubber roller is in place or not, the position can only be determined through a printing page test page, as for a person with inexperienced judgment on the printing effect, even if the printing test page is available, whether the printing effect is optimal or not is difficult to accurately judge, in addition, because the thermal printing head is a consumable product, frequent replacement is needed, and whether the position between the printing head and the paper feeding rubber roller after replacement is in place or not depends on experience and judgment level of an operator, so that the control is quite difficult.

Disclosure of utility model

In order to solve the problem that the thermal printing head is easy to consume and needs to be replaced frequently, and whether the position between the printing head and the paper feeding rubber roller after replacement is in place depends on experience and judgment level of operators, so that the thermal printing head is not easy to control, the application provides a frame structure of the thermal printing head.

The application provides a thermal printhead frame structure which adopts the following technical scheme:

The utility model provides a thermal print head frame structure, includes the frame, rectangular channel has all been seted up at the top surface both ends of frame, two the inside in rectangular channel all is equipped with the rectangle piece, two wear to be equipped with the axostylus axostyle through the bearing between the rectangle piece, the outer wall of axostylus axostyle is equipped with the print head subassembly through the bearing housing, is located the outer wall cover of axostylus axostyle in the print head subassembly is equipped with the rubber roll, the inside of frame is equipped with the baffle, three draw-in groove has been seted up with the relative one side of print head subassembly to the baffle, and three the inside of draw-in groove all blocks and is equipped with the cardboard, be connected through the spring between cardboard and the print head subassembly.

Preferably, the motor is arranged on the inner bottom surface of the frame, the output end of the motor penetrates through the frame, a first gear is sleeved outside the motor in an extending mode, the first gear is connected with a second gear in a meshed mode, the second gear is connected with a third gear in a meshed mode, and the third gear is connected with a fourth gear in a meshed mode.

Preferably, the outer wall of axostylus axostyle is located to the fourth gear cover, the bull stick is worn to be equipped with by the second gear, the bull stick rotates with the frame to be connected, the third gear wears to be equipped with the round bar, the round bar rotates with the frame to be connected, and the outer wall cover of round bar is equipped with the roller, the roller is located the below of rubber roll.

Preferably, the motor is detachably arranged on the inner bottom surface of the frame through screws.

In summary, the application has the following beneficial technical effects:

When this thermal print head frame structure of equipment, at first with the inside of three draw-in groove of three cardboard card in proper order, then press the inside at two rectangular channels with two rectangular blocks to can be quick convenient install print head subassembly and rubber roll in the frame, ensure the accurate location between print head subassembly, rubber roll and the roller, and then easy operation control machine guarantees the printing effect.

Drawings

FIG. 1 is a front elevational view of a construction of an embodiment of the application;

FIG. 2 is a structural top view of an embodiment of the application;

Fig. 3 is a structural exploded view of the application embodiment.

The reference numerals comprise 1, a frame, 2, a first gear, 3, a second gear, 4, a rotating rod, 5, a third gear, 6, a round rod, 7, a rubber roller, 8, a roller, 9, a motor, 10, a shaft lever, 11, a partition plate, 12, a clamping plate, 13, a spring, 14, a fourth gear, 15, a printing head assembly, 16, a clamping groove, 17, a rectangular groove, 18 and a rectangular block.

Detailed Description

The application is described in further detail below with reference to fig. 1-3.

The embodiment of the application discloses a thermal printhead rack structure, refer to fig. 1-3, which comprises a rack 1, rectangular grooves 17 are formed in two ends of the top surface of the rack 1, rectangular blocks 18 are arranged in the two rectangular grooves 17 in a sliding mode, a shaft lever 10 is arranged between the two rectangular blocks 18 in a penetrating mode through a bearing, a printhead assembly 15 is arranged on the outer wall of the shaft lever 10 through a bearing sleeve, a rubber roller 7 is fixedly sleeved on the outer wall of the shaft lever 10 positioned in the printhead assembly 15, a partition plate 11 is fixedly arranged in the rack 1, three clamping grooves 16 are formed in one surface, opposite to the printhead assembly 15, of the partition plate 11, clamping plates 12 are fixedly connected with the printhead assembly 15 through springs 13, when the thermal printhead rack 1 structure is assembled, the three clamping plates 12 are firstly clamped in the three clamping grooves 16 in sequence, then the two rectangular blocks 18 are pressed in the two rectangular grooves 17, accordingly, the printhead assembly 15 and the rubber roller 7 can be quickly and conveniently mounted on the rack 1, positioning of the printhead assembly 15 and the rubber roller 7 can be ensured, the control and the printing effect between the rubber roller 7 and the printer 8 can be ensured easily and accurately.

Referring to fig. 1-2, a motor 9 is detachably arranged on the inner bottom surface of a frame 1 through a screw, an output end of the motor 9 penetrates through the frame 1, a first gear 2 is fixedly sleeved outside the frame in an extending mode, the first gear 2 is connected with a second gear 3 in a meshed mode, the second gear 3 is connected with a third gear 5 in a meshed mode, the third gear 5 is connected with a fourth gear 14 in a meshed mode, the fourth gear 14 is fixedly sleeved on the outer wall of a shaft lever 10, a rotating rod 4 is fixedly arranged on the second gear 3 in a penetrating mode, the rotating rod 4 is rotatably connected with the frame 1, a round rod 6 is fixedly arranged on the third gear 5 in a penetrating mode, the round rod 6 is rotatably connected with the frame 1, a roller 8 is fixedly sleeved on the outer wall of the round rod 6, the roller 8 is located below the rubber roller 7, the output end of the motor 9 drives the first gear 2 to rotate, the first gear 2 rotates to drive the second gear 3 and the rotating rod 4, the third gear 5, the round rod 6 and the roller 8 rotate, the fourth gear 14 and the rubber roller 7 rotate in a rotating mode, and the thermal printing operation of the device is achieved.

When the thermal printing head frame structure is used, when the thermal printing head frame 1 structure is assembled, firstly, three clamping plates 12 are sequentially clamped in three clamping grooves 16, then two rectangular blocks 18 are pressed in two rectangular grooves 17, so that a printing head assembly 15 and a rubber roller 7 can be quickly and conveniently mounted on the frame 1, accurate positioning among the printing head assembly 15, the rubber roller 7 and the roller 8 is ensured, a printing effect is ensured by an easy operation controller, the output end of a motor 9 drives a first gear 2 to rotate, the rotation of the first gear 2 drives a second gear 3 and a rotating rod 4 to rotate, the rotation of the second gear 3 drives a third gear 5, a round rod 6 and the roller 8 to rotate, and the rotation of the third gear 5 drives a fourth gear 14 and the rubber roller 7 to rotate, and thermal printing operation of the device is realized.

In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, where "up," "down," "left," "right," etc. are merely used to indicate relative positional relationships, and when the absolute position of an object to be described changes, the relative positional relationships may change;

in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;

Finally, the foregoing description of the preferred embodiment of the utility model is provided for the purpose of illustration only, and is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims (4)

1. A thermal printing head rack structure comprises a rack (1) and is characterized in that rectangular grooves (17) are formed in two ends of the top surface of the rack (1), rectangular blocks (18) are arranged in the rectangular grooves (17), a shaft rod (10) is arranged between the rectangular blocks (18) in a penetrating mode through bearings, a printing head assembly (15) is arranged on the outer wall of the shaft rod (10) through a bearing sleeve, a rubber roll (7) is sleeved on the outer wall of the shaft rod (10) in the printing head assembly (15), a partition plate (11) is arranged in the rack (1), three clamping grooves (16) are formed in the opposite side of the partition plate (11) to the printing head assembly (15), clamping plates (12) are arranged in the clamping grooves (16) in a clamping mode, and the clamping plates (12) are connected with the printing head assembly (15) through springs (13).

2. The frame structure of a thermal printhead according to claim 1, wherein a motor (9) is arranged on the inner bottom surface of the frame (1), the output end of the motor (9) penetrates through the frame (1), a first gear (2) is sleeved outside in an extending mode, the first gear (2) is connected with a second gear (3) in a meshed mode, the second gear (3) is connected with a third gear (5) in a meshed mode, and the third gear (5) is connected with a fourth gear (14) in a meshed mode.

3. The frame structure of a thermal printing head according to claim 2, wherein the fourth gear (14) is sleeved on the outer wall of the shaft lever (10), the second gear (3) is provided with a rotating rod (4) in a penetrating mode, the rotating rod (4) is rotatably connected with the frame (1), the third gear (5) is provided with a round rod (6) in a penetrating mode, the round rod (6) is rotatably connected with the frame (1), the outer wall of the round rod (6) is provided with a roller (8) in a sleeved mode, and the roller (8) is located below the rubber roller (7).

4. A thermal printhead frame structure according to claim 2, wherein said motor (9) is detachably mounted to the inner bottom surface of the frame (1) by screws.