CN220615270U - Ribbon cartridge and label printing device - Google Patents

Abstract

The utility model discloses a ribbon cartridge and a label printing device, the ribbon cartridge comprises: the ink ribbon cartridge comprises a plurality of cartridges, wherein the cartridges are sequentially arranged at intervals along the conveying direction of the ink ribbon, and an accommodating space is formed in the cartridges; the ribbon shaft is rotatably arranged in the accommodating space; and the limiting part is arranged in the accommodating space, a limiting space is formed in the limiting part, and the inner surface of the limiting space is coated and attached on the outer peripheral surface of the ribbon shaft or has a preset gap with the outer peripheral surface of the ribbon shaft. Compared with the prior art, the utility model has the advantages that the limiting part is arranged, the limiting space is formed in the limiting part, and the inner surface of the limiting space is coated and attached on the outer peripheral surface of the ribbon shaft or has a set gap with the outer peripheral surface of the ribbon shaft, so that on one hand, the movable space of the ribbon shaft in the ribbon box can be reduced, and the shaking amplitude of the ribbon shaft is reduced; on the other hand, when the limiting part is in direct contact with the ribbon shaft, a certain friction force is generated, so that the ribbon shaft can be prevented from loosening due to rotation.

Description

Ribbon cartridge and label printing device

Technical Field

The utility model relates to the technical field of label printing, in particular to a ribbon cartridge and a label printing device.

Background

At present, the label printing device is widely used in various industries and brings great convenience to the work and life of people.

The label printing apparatus melts carbon powder on a carbon tape (ink ribbon) by heat generation of a print head, and transfers desired characters, marks, and the like onto a specific medium. The ink ribbon cartridge is a consumable that is removably loaded into the printer because the ink ribbon is depleted during printing and may need to be replaced.

There is provided in the prior art a ribbon cartridge comprising a cartridge housing having an outer wall; a supply ribbon spool and a take-up ribbon spool are contained in the cartridge housing; and a ribbon which is transferable between the supply ribbon spool and the take-up ribbon spool. During printing, the ribbon unwinds from a supply ribbon spool and then winds onto a take-up ribbon spool.

The ribbon cassette has a large shaking amplitude, which may cause the ribbon to be loose, and may cause poor printing if the ribbon is loose or wrinkled during the process of feeding the ribbon.

Disclosure of Invention

The utility model aims to provide a ribbon cartridge and a label printing device, which solve the technical problems in the prior art and can reduce the slack or wrinkles of the ribbon.

The utility model provides a ribbon cartridge for transporting a ribbon, comprising:

the ink ribbon cartridge comprises a plurality of cartridges, wherein the cartridges are sequentially arranged at intervals along the conveying direction of the ink ribbon, and an accommodating space is formed in the cartridges;

the ribbon shaft is rotatably arranged in the accommodating space;

and the limiting part is arranged in the accommodating space, a limiting space is formed in the limiting part, the ribbon shaft extends into the limiting space, and the inner surface of the limiting space is coated and attached on the outer peripheral surface of the ribbon shaft or a preset gap is formed between the inner surface of the limiting space and the outer peripheral surface of the ribbon shaft.

In the ink ribbon cartridge according to the above aspect, it is preferable that the restricting portion includes a plurality of restricting blocks, the plurality of restricting blocks are disposed on an inner surface of the accommodating space at annular intervals, a restricting surface is formed on a side of the restricting block facing the ink ribbon shaft, the restricting space is formed by surrounding the plurality of restricting surfaces, and the restricting surface is attached to an outer peripheral surface of the ink ribbon shaft in a coating manner or has a predetermined gap with the outer peripheral surface of the ink ribbon shaft.

A ribbon cartridge as defined above, wherein preferably both axial ends of the ribbon shaft are provided with the restricting portions.

According to the ribbon cartridge of the above-mentioned type, preferably, the accommodating space is provided with two through holes penetrating through the cylinder, the two through holes are symmetrically arranged along the axial direction of the ribbon shaft, the inner surface of the through hole is provided with an annular bulge towards one side away from the accommodating space, and the plurality of limiting blocks are arranged on the inner surface of the annular bulge at annular intervals.

A cassette as defined in the above, wherein preferably the restriction block is snapped onto the inner surface of the annular projection.

A cassette as defined in the above, wherein preferably said restriction block is bonded to an inner surface of said annular projection.

In the ink ribbon cartridge according to the above aspect, preferably, the annular protrusion is provided with a recess, and an end of the restriction block facing away from the restriction surface extends into the recess, and the restriction surface protrudes from the recess.

In the ink ribbon cartridge according to the above aspect, preferably, the restricting block is an arc block, an extrados of the restricting block is attached to an inner surface of the annular protrusion, and the restricting surface is formed on an outer surface of the annular protrusion.

A cassette as defined above wherein preferably said restriction block is an elastomer.

In a second aspect, the present utility model provides a label printing apparatus comprising a cassette as hereinbefore described.

Compared with the prior art, the utility model has the advantages that the limiting part is arranged, the limiting space is formed in the limiting part, and the inner surface of the limiting space is coated and attached on the outer peripheral surface of the ribbon shaft or has a set gap with the outer peripheral surface of the ribbon shaft, so that on one hand, the movable space of the ribbon shaft in the ribbon box can be reduced, and the shaking amplitude of the ribbon shaft is reduced; on the other hand, when the limiting part is in direct contact with the ribbon shaft, a certain friction force is generated, so that the ribbon shaft can be prevented from loosening due to rotation.

Drawings

FIG. 1 is a perspective view of a ribbon cassette according to a first embodiment of the present utility model;

FIG. 2 is a perspective view of a ribbon cartridge according to a first embodiment of the present utility model in another direction;

FIG. 3 is a perspective view of a ribbon cassette according to a first embodiment of the present utility model in an open state (with the ribbon not hidden)

Fig. 4 is a perspective view (hidden color tape) of a color tape cassette in an open state according to a first embodiment of the present utility model;

FIG. 5 is a partially exploded view of a ribbon cartridge according to a first embodiment of the present utility model in an open position;

FIG. 6 is a perspective view of a restriction portion according to a first embodiment of the present utility model;

fig. 7 is a perspective view of a ribbon cassette according to a second embodiment of the present utility model in an open state;

FIG. 8 is a partially exploded view of a second embodiment of the present utility model in an open position;

fig. 9 is a perspective view of a restricting portion according to a second embodiment of the present utility model.

Reference numerals illustrate:

10-a cylinder body, 101-a first part, 102-a second part, 11-a containing space, 12-a through hole, 13-an annular bulge, 14-an annular groove and 15-a clamping groove;

20-color ribbon shaft, 21-transmission gear, 22-flange plate and 23-flange;

30-limiting parts, 31-limiting blocks, 32-limiting surfaces and 33-clamping blocks;

40-a retainer;

50-color bar.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In order to prevent the ribbon 50 from loosening due to collision, shake, rotation, etc. during the printing process of the ribbon cartridge being idle or installed, referring to fig. 1 to 9, an embodiment of the present utility model provides a ribbon cartridge for transporting the ribbon 50, the ribbon cartridge includes a cylinder 10, and a ribbon shaft 20 and a limiting portion 30 disposed in the cylinder 10, wherein:

the barrel 10 is equipped with a plurality ofly, a plurality of barrels 10 are formed with accommodation space 11 along the direction of delivery of typewriter ribbon 50 interval setting in proper order in the barrel 10, typewriter ribbon axle 20 rotatable setting is in accommodation space 11, in this application embodiment, refer to the illustration of fig. 1 and 2, barrel 10 is equipped with two, two barrels 10 set up side by side, be equipped with holder 40 between two barrels 10, in order to connect two barrels 10 as a whole, available holder 40 installs the typewriter ribbon box in the label printing apparatus, the structure of holder 40 can refer to the existing structure among the prior art, and the details are omitted here.

Referring to fig. 1 and 3, each cylinder 10 is provided with an opening, the opening is communicated with the accommodating space 11, the ribbon 50 is led into or extends out of the accommodating space 11 through the opening, the ribbon 50 is wound on the ribbon shaft 20 in one cylinder 10, the ribbon shaft 20 is used as a raw material shaft for carrying the ribbon 50, the free end of the ribbon 50 extends out of the opening of the cylinder 10 and enters the accommodating space 11 of the other cylinder 10 to be wound on the other ribbon shaft 20, the ribbon shaft 20 is used as a transmission shaft for providing power and tension for conveying the ribbon 50, and the two ribbon shafts 20 can rotate to drive the ribbon 50 to be conveyed out of the ribbon cartridge, and meanwhile, the ribbon 50 is prevented from being wrinkled.

Referring to fig. 3 and 4, the cylinder 10 is a split structure, and includes a first portion 101 and a second portion 102, where the first portion 101 and the second portion 102 are surrounded to form the cylinder 10, one end of the first portion 101 is hinged to an end of the same side of the second portion 102, and the other end of the first portion 101 is fastened to an end of the same side of the second portion 102, preferably, an axis of the cylinder 10 is located on a plane where an interface between the first portion 101 and the second portion 102 is located, and the accommodating space 11 is equally divided by the first portion 101 and the second portion 102. When it is desired to assemble the maintenance ribbon spool 20 or the replenishment ribbon 50, the first portion 101 can be separated from the second portion 102, and the cartridge 10 can be opened to expose the ribbon spool 20 and the replenishment ribbon 50, thereby facilitating the operation of the operator.

In a possible embodiment, referring to fig. 3, opposite ends of the ribbon shaft 20 extend out of the accommodating space 11 respectively, one shaft end of the ribbon shaft is provided with a transmission gear 21, the transmission gear 21 is used for being meshed with a driving part of the printing device to drive the printing device to rotate, the other shaft end is provided with a flange 22, two flanges 23 which are oppositely arranged are arranged between the gear and the flange 22, the ribbon 50 is limited between the two flanges 23, and the ribbon 50 contacts with the surface of the flange 23 when the offset is too large in the transmission process, so that the ribbon 50 is prevented from excessively offsetting.

The limiting part 30 is arranged in the accommodating space 11, a limiting space is formed in the limiting part 30, the ribbon shaft 20 extends into the limiting space, the inner surface of the limiting space is coated and attached on the outer peripheral surface of the ribbon shaft 20 or has a preset gap with the outer peripheral surface of the ribbon shaft 20 so as to cope with the shaking of the ribbon shaft 20 in all directions, the ribbon shaft 20 can be contacted with the inner surface of the limiting space when shaking, the limiting part 30 limits the movement of the ribbon shaft 20, and the limiting part 30 is in direct contact with the ribbon shaft 20 so as to provide larger friction force for the ribbon shaft 20, thereby preventing the ribbon 50 of the ribbon shaft 20 from loosening due to rotation.

In the embodiment provided in this application, referring to fig. 3 and fig. 7, the limiting portion 30 includes a plurality of limiting blocks 31, the plurality of limiting blocks 31 are annularly disposed on the inner surface of the accommodating space 11 at intervals, and the plurality of limiting blocks 31 form a split ring structure, in a feasible embodiment, the limiting portion 30 includes two limiting blocks 31 disposed oppositely, and the two limiting blocks 31 are disposed on the first portion 101 and the second portion 102 of the cylinder 10 respectively, so as to facilitate assembly, those skilled in the art can know that the limiting portion 30 may also include only one limiting block 31, and the limiting block 31 is a complete ring structure, which is not limited herein.

The limiting block 31 is formed with a limiting surface 32 on one side facing the ribbon shaft 20, the limiting block 31 is attached to the inner wall surface of the accommodating space 11, preferably, the limiting block 31 is an arc-shaped body, the limiting surface 32 is an arc-shaped surface, the radian of the limiting surface 32 is consistent with that of the outer circumferential surface of the ribbon shaft 20, a plurality of limiting surfaces 32 are encircled to form a limiting space, the limiting surface 32 is attached to the outer circumferential surface of the ribbon shaft 20 in a coating mode or has a preset gap with the outer circumferential surface of the ribbon shaft 20, so that the ribbon shaft 20 can be contacted with the limiting surface 32 when being swayed, the limiting surface 32 limits the movement of the ribbon shaft 20, and the limiting surface 32 is directly contacted with the ribbon shaft 20 to provide larger friction force for the ribbon shaft 20, so that the ribbon 50 of the ribbon shaft 20 is prevented from being loosened due to rotation.

Further, referring to fig. 4 and 5, the limiting portions 30 are disposed at both axial ends of the ribbon shaft 20, the whole ribbon shaft 20 can be stably supported in the limiting portions 30 without being skewed, and the corresponding limiting portions 30 are provided to limit the rocking range of the ribbon shaft 20 no matter which end of the ribbon shaft 20 is rocked, so that the rocking degree of the ribbon shaft 20 is reduced to a greater extent.

In the embodiment provided in this application, the limiting block 31 is an elastomer such as sponge and rubber, so as to avoid scratch to cause the ribbon shaft 20, and meanwhile, the assembly is easy, and since the elastomer has a deformation range, the ribbon shaft 20 with a certain size in a certain range can be applied, in an alternative embodiment, the limiting block 31 can be made of plastic, has higher strength and has a certain elasticity.

The structure of the limiting portion 30 will be further described with reference to several embodiments, and those skilled in the art will appreciate that many modifications can be made according to the following embodiments, all of which are within the scope of the present utility model.

Example 1

Referring to fig. 1 to 5, in this embodiment, an accommodating space 11 is provided with two through holes 12 penetrating through a cylinder 10, the two through holes 12 are symmetrically arranged along an axial direction of a ribbon shaft 20, the ribbon shaft 20 extends out of the through holes 12, an annular protrusion 13 is convexly arranged on an inner surface of the through hole 12 towards a side away from the accommodating space 11, an inner surface of the annular protrusion 13 is flush with an inner surface of the through hole 12, a plurality of limiting blocks 31 are annularly arranged on the inner surface of the annular protrusion 13 at intervals, the annular protrusion 13 corresponds to the cylinder 10, the annular protrusion 13 is of a split structure and comprises two symmetrical parts, a limiting block 31 is arranged on an inner surface of each part, and radian of the limiting block is matched with that of an inner surface of the annular protrusion 13.

In this embodiment, the limiting block 31 is clamped on the inner surface of the annular protrusion 13, referring to fig. 5 and 6, the clamping groove 15 is penetrated and arranged on the surface of the annular protrusion 13, the clamping block 33 is convexly arranged on the surface of the limiting block 31, which is close to the annular protrusion 13, when the limiting block is assembled, the clamping block 33 is aligned with the clamping groove 15, then force is applied, the clamping block 33 is pressed and embedded into the clamping groove 15, the clamping blocks 33 are preferably two, the two clamping blocks 33 are symmetrically arranged on two opposite sides of the arc length direction of the limiting block 31, the two clamping grooves 15 are also arranged on the inner surface of the corresponding annular protrusion 13, and when the limiting block 31 needs to be disassembled, the clamping block 33 is ejected out of the clamping groove 15 only by force application from the outer side of the cylinder 10, so that the limiting block 33 can be conveniently and quickly ejected.

Those skilled in the art will appreciate that the clamping groove 15 may be provided on the limiting block 31, and the clamping block 33 may be convexly provided on the inner surface of the annular protrusion 13, which may also have a clamping and fixing function, which is not limited herein.

Further, the annular protrusion 13 is concavely provided with the annular groove 14, the clamping groove 15 is arranged on the bottom groove surface of the annular groove 14, one end of the limiting block 31, which is far away from the limiting surface 32, extends into the annular groove 14, at least part of the limiting block 31 is accommodated in the annular groove 14, the limiting surface 32 protrudes out of the annular groove 14, the inner contour surface of the annular groove 14 is matched with the outer contour surface of the limiting block 31, and the limiting block 31 can be better fixed.

Example two

Referring to fig. 7 to 9, in the present embodiment, unlike the first embodiment, the design of the ring groove 14 is eliminated, and the restriction piece 31 is bonded to the inner surface of the annular protrusion 13 with higher bonding reliability.

Other structures of the limiting block 31 in this embodiment are the same as those in the first embodiment, and will not be described here again.

Based on the above embodiment, the present utility model further provides a label printing apparatus, including the above-mentioned ribbon cartridge, in which the limiting portion 30 is disposed, a limiting space is formed in the limiting portion 30, and an inner surface of the limiting space is wrapped and attached to an outer peripheral surface of the ribbon shaft 20 or has a predetermined gap with the outer peripheral surface of the ribbon shaft 20, so that a movable space of the ribbon shaft 20 in the ribbon cartridge can be reduced, and a shake amplitude of the ribbon shaft 20 is reduced; meanwhile, a certain friction force is generated when the limiting part 30 is in direct contact with the ribbon shaft 20, so that the ribbon 50 can be prevented from loosening due to rotation of the ribbon shaft 20.

While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (10)

1. A ribbon cassette for transporting ribbon comprising:

the ink ribbon cartridge comprises a plurality of cartridges, wherein the cartridges are sequentially arranged at intervals along the conveying direction of the ink ribbon, and an accommodating space is formed in the cartridges;

the ribbon shaft is rotatably arranged in the accommodating space;

and the limiting part is arranged in the accommodating space, a limiting space is formed in the limiting part, the ribbon shaft extends into the limiting space, and the inner surface of the limiting space is coated and attached on the outer peripheral surface of the ribbon shaft or a preset gap is formed between the inner surface of the limiting space and the outer peripheral surface of the ribbon shaft.

2. The ribbon cartridge of claim 1, wherein: the limiting part comprises a plurality of limiting blocks, the limiting blocks are annularly arranged on the inner surface of the accommodating space at intervals, a limiting surface is formed on one side of the limiting block, which faces the ribbon shaft, the limiting surfaces are surrounded to form the limiting space, and the limiting surface is coated and attached on the outer peripheral surface of the ribbon shaft or has a preset gap with the outer peripheral surface of the ribbon shaft.

3. The ribbon cartridge of claim 2, wherein: both shaft ends of the ribbon shaft are provided with the limiting parts.

4. A ribbon cartridge according to claim 3, wherein: the accommodating space is provided with two through holes in a penetrating manner on the cylinder body, the two through holes are symmetrically arranged along the axis direction of the ribbon shaft, annular protrusions are convexly arranged on the inner surface of the through holes towards one side deviating from the accommodating space, and a plurality of limiting blocks are annularly arranged on the annular protrusions at intervals.

5. The ribbon cartridge of claim 4, wherein: the limiting block is clamped on the inner surface of the annular protrusion.

6. The ribbon cartridge of claim 4, wherein: the limiting block is adhered to the inner surface of the annular protrusion.

7. The ribbon cartridge of claim 4, wherein: the annular bulge is concavely provided with a ring groove, one end of the limiting block, which is far away from the limiting surface, extends into the ring groove, and the limiting surface protrudes out of the ring groove.

8. The ribbon cartridge of claim 4, wherein: the limiting block is an arc-shaped block, the outer cambered surface of the limiting block is attached to the inner surface of the annular protrusion, and the limiting surface is formed on the outer surface of the annular protrusion.

9. The ribbon cartridge of claim 2, wherein: the limiting block is an elastomer.

10. A label printing apparatus comprising a cassette according to any one of claims 1 to 9.