CN203004553U - Ribbon cartridge used for label printing device - Google Patents

Abstract

The utility model relates to a ribbon box for a label printing device. The first collection shaft for collecting the printing medium, the end surface of the first collection shaft is provided with a restricting member that restricts the rotation direction of the first collection shaft, and the inner wall of the box is provided at the corresponding position of the direction restricting member on the first collection shaft. A direction limiting accessory that cooperates with a direction limiting member. It solves the technical problem that the ink ribbon box used in the existing label printing device may be blocked or even ribboned due to improper cooperation between the upper shell and the lower shell.

Description

Ribbon box for a label printing device

technical field

The utility model relates to a color ribbon box for a label printing device.

Background technique

Existing ribbon cassettes for label printing devices include a box body, a first take-up shaft for winding and releasing unprinted media, which is arranged in the box body and connected to the inner wall of the box body with a rotating shaft, and used for unprinted media. The first take-up shaft for collecting printing media, in this label ribbon cassette, since the first take-up shaft and the first take-up shaft are rotatably arranged in the label ribbon cassette, in the absence of driving force, the second A take-up shaft may rotate along the first direction or the second direction, and if it rotates along the second direction, the carbon ribbon in the label ribbon box will be loosened. In the EP1403086B1 publication published before this, an arc-shaped component was proposed to prevent the first collection shaft from rotating in the second direction, but because the relationship between the upper shell and the lower shell is not very tight, it may cause the EP1403086B1 The curved parts mentioned above are not stuck in the narrow gap. If the label ribbon box is not tightened up and put into the printing device for printing tasks, the ribbon may be blocked or even streamed, resulting in failure to print. Serious consequences. Therefore, the phenomenon of ribbon slack that may occur in the label ribbon cassette should be eliminated before printing. However, users often forget to operate this cumbersome procedure. Even if the user does not forget to eliminate the slack phenomenon, the user will rotate the first receiving shaft along the second direction by mistake, resulting in greater slack, seriously affecting the printing effect and quality.

Utility model content

The utility model provides an ink ribbon box for a label printing device to solve the technical problem that the existing ink ribbon box for a label printing device may be blocked or even flow due to an improper matching relationship between an upper casing and a lower casing.

In order to solve the above technical problems, the technical scheme that the utility model takes is:

A ribbon box for a label printing device, comprising a box body, a first take-up shaft for winding and releasing unprinted media, which is arranged in the box body and connected to the inner wall of the box with a rotating shaft, and used for The first collecting shaft for collecting the printing medium is characterized in that, the end surface of the first collecting shaft is provided with a restricting member that restricts the rotation direction of the first collecting shaft, and the inner wall of the box is in contact with the first collecting shaft. A direction-limiting accessory that cooperates with the direction-limiting member is provided at a corresponding position of the direction-limiting member on the shaft.

The direction-limiting fitting is a rib with a certain degree of elasticity, one end of which is fixedly connected to the inner wall of the box, and the other end is suspended in the air.

The direction limiting member is arranged on the end surface of the first collecting shaft with a plurality of grooves arranged around the center line of the first collecting shaft, and the free ends of the ribs are provided with protrusions matching the grooves , the groove is provided with a sliding surface when the first collecting shaft rotates in a first direction during normal printing and a blocking surface when the first collecting shaft rotates in a second direction opposite to normal printing The protrusion is provided with a sliding mating surface and a preventing mating surface respectively matched with the sliding surface and the blocking surface.

The direction limiting member is arranged on the end surface of the first collecting shaft with a plurality of protrusions arranged around the centerline of the first collecting shaft, and the free ends of the ribs are provided with grooves matching the protrusions , the protrusion is provided with a sliding surface when the first collecting shaft rotates in a first direction during normal printing and a blocking surface when the first collecting shaft rotates in a second direction opposite to normal printing The groove is provided with a sliding matching surface and a blocking matching surface respectively matched with the sliding surface and the blocking surface.

The sliding surface and the sliding matching surface are inclined surfaces, and the blocking surface and the blocking matching surface are right-angled surfaces.

A second take-up shaft for take-up and release of transparent print media is also included.

Also included is a third take-up shaft for take-up and release of viscous media.

There are multiple ribs.

There is a pair of ribs.

The pair of ribs are symmetrically distributed on both sides of the first collecting shaft.

After adopting the above-mentioned technical solution, since the end surface of the first collecting shaft is provided with a restricting member that restricts the rotation direction of the first collecting shaft, the inner wall of the box and the corresponding position of the restricting member on the first collecting shaft are provided with a Direction-restricting accessories that cooperate with direction-restraining parts. It solves the technical problem that the ink ribbon box used in the existing label printing device may be blocked or even ribboned due to improper cooperation between the upper shell and the lower shell.

Description of drawings

Fig. 1 is a schematic diagram of the assembly of the utility model after removing the upper casing.

Fig. 2 is a cross-sectional view of the cooperation between the protrusion and the groove in the label ribbon cassette of the present invention.

Fig. 3 is an enlarged schematic diagram of the cooperation between the protrusion and the groove in the present invention.

Fig. 4 is a schematic plan view of the lower casing of the present invention.

Fig. 5 is a schematic diagram and a cross-sectional view of the ribs of the present invention.

Fig. 6 is a schematic diagram of the three-dimensional structure of the first receiving shaft of the present invention.

Fig. 7 is a top view of the first collecting shaft of the present invention.

Fig. 8 is a plane view of the first collecting axis of the present invention.

Fig. 9 is a schematic diagram of cooperation between the first receiving shaft and the protrusion of the rib in the present invention.

Fig. 10 is a schematic diagram of cooperation with the protrusion when the first receiving shaft of the present invention rotates along the first direction.

Fig. 11 is a diagram of the relationship between the position of the protrusion and the position of the protrusion when the first receiving shaft of the utility model rotates along the second direction

Fig. 12 is a schematic diagram of cooperation with the protrusion when the first receiving shaft continues to rotate in the first direction on the basis of Fig. 10 of the present invention.

Fig. 13 is a schematic diagram of cooperation with the protrusion when the first receiving shaft continues to rotate in the first direction on the basis of Fig. 12 of the present invention.

Detailed ways

Hereinafter, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.

A ribbon box for a label printing device, comprising a box body, a first take-up shaft 99 for winding and releasing unprinted media, which is arranged in the box body and connected to the inner wall of the box with a rotating shaft, and used for printed media. The first take-up shaft 98 of collection, the second take-up shaft 96 for the take-up and release of transparent print media and the third take-up shaft 93 for the take-up and release of viscous media, the box body includes an upper shell and The lower casing, as shown in Figure 1, is a plan view of the lower casing after the upper casing is removed for the utility model, and the ribbon cassette is used in the label printing device (not shown). The first winding shaft 99 is used for winding the unprinted carbon ribbon 100 , and the other end of the carbon ribbon 100 is wound on the first take-up shaft 98 , that is, the first take-up shaft 98 is used for taking the printed carbon ribbon. At the same time, a transparent printing medium 97 is wound on the second winding shaft 96 , and a viscous medium 94 with double-sided adhesiveness is wound on the third winding shaft 93 . The carbon ribbon 100 and the transparent printing medium 97 are overlapped at the printing area 92 of the lower casing. Since the above-mentioned printing device adopts the thermal transfer method for printing, the thermal transfer printing head can pass the printing information set by the user through the printing area 92. The carbon powder layer on the carbon ribbon 100 feeds back information and prints it on the transparent printing medium, so as to realize the purpose of printing.

At the same time, when the ink ribbon cassette is installed in the above-mentioned printing device, the first receiving shaft 98 is correspondingly installed on the driving shaft (not shown) of the printing device. When there is a printing command, the driving shaft moves along the first direction. Rotation, through the engagement of the meshing teeth 15 inside the first collecting shaft and the meshing teeth on the driving shaft, the first collecting shaft is driven to rotate along the first direction, thus, the carbon ribbon 100 moves along the first direction, forming the first The take-up shaft 98 continuously collects the printed carbon ribbon at the printing area 92, and the first take-up shaft 99 continuously releases the unprinted carbon ribbon.

At the same time, the viscous medium 94 is wrapped around the belt pulley 95 with a weaker sticky surface, and contacts the above-mentioned transparent printing medium 97 with a stronger sticky surface, and the printing device has a pressure transmission device corresponding to the belt pulley 95 (not shown). shown), through the interaction between the pressure transmission device and the belt pulley 95, the transparent printing medium and adhesive paper can be brought to the color ribbon box to form the label ribbon required by the user.

It should be noted that the drive shaft and the pressure transmission device in the above printing device rotate synchronously along the first direction, thereby ensuring that the ribbon, the transparent printing medium, and the viscous medium move along the first direction at the same speed, further It ensures the printing accuracy of the label ribbon required by the user.

When the first collecting shaft is not printing, it may rotate along the first direction or along the second direction. If it rotates along the first direction, the unprinted ribbon 100 will be collected, resulting in waste of the ribbon. If it rotates along the second direction, it may cause the carbon ribbon 100 to appear ribbon phenomenon during the printing process, that is, the carbon ribbon is in contact with the viscous medium along with the transparent printing medium 97, so the carbon ribbon will be brought along with the viscous medium. Out of the box, causing serious printing accidents. Therefore, a structure or device is needed to prevent this situation. The utility model provides a specific structure to achieve the above purpose, specifically as follows.

The utility model is provided with a direction limiting member on the end face of the first collecting shaft 98, which limits the rotation direction of the first collecting shaft 98. The direction-limiting accessories are matched with the accessories. One end of the direction-limiting accessories is fixedly connected to the inner wall of the box, and the other end is suspended in the air with a certain degree of elastic ribs. The tension provided by the ribs can prevent the first receiving shaft from moving along the Rotate in the first direction; the direct face structure provided by it can prevent the first collection shaft from rotating in the second direction. The above-mentioned ribs are formed together with the lower casing, and there is a protrusion 11 at the end of the suspended end of the ribs, and the direction-limiting member matched with it has several grooves 9 on the end face of the first receiving shaft, and several grooves 9 are arranged around the centerline of the first collecting shaft, and their positional relationship is shown in Figure 2. When the lower casing 1 cooperates with the upper casing 20 to form a color ribbon cassette, the above-mentioned protrusions cooperate with the grooves on the first collecting shaft, achieved goals. Partial enlargement of the mating position 14 is shown in FIG. 3 , the protrusion 11 is periodically mated with the groove 9 to provide the tension required by the first collecting shaft and prevent the first collecting shaft from rotating in the second direction. The groove 9 is provided with a sliding surface when the first collection shaft rotates along the first direction during normal printing and a blocking surface when the first collection shaft rotates in the second direction when the first collection shaft rotates along the opposite direction of normal printing. A sliding mating surface and a blocking mating surface respectively matched with the sliding surface and the blocking surface are provided. Wherein, the sliding surface and the sliding matching surface are inclined surfaces, and the blocking surface and the blocking matching surface are right-angled surfaces.

Figure 4 is a plan view of the lower housing, the position shown in 2 is the position of the first take-up shaft 99, the position shown in 3 is the position of the first take-up shaft 98, and the position shown in 5 is the third take-up shaft 93 The location, 7, is the protruding arm of the ribbon cassette, the protruding arm can provide the supporting force of the transparent printing medium and the carbon ribbon at the exit end, and prevent the transparent printing medium and the carbon ribbon from bending or wrinkling at the exit end. In the figure, 6 and 4 are used for the off-machine positioning and off-machine identification of the ribbon cassette.

Figure 5 is a schematic diagram and a cross-sectional view of the above-mentioned ribs, and Figures 6-8 are a three-dimensional schematic diagram and a plan view of the first collection shaft above, which include a number of grooves 9, teeth 16 with inclined surfaces for meshing, and two ends Disc surfaces 10A, 10B. The above-mentioned first collection shaft is used for collecting the printed carbon ribbon, and the storage area after collection is 15. During the printing process, the first collection shaft rotates along the first direction with the printing device, and the carbon ribbon also moves along the first direction. The width of the carbon ribbon can be designed to be 15mm. During the collection process, the carbon ribbon is evenly and flatly wound on the upper and lower disc surfaces 10A and 10B, ensuring the printing quality.

Figure 9 is a schematic diagram of the cooperation between the above-mentioned protrusion 11 and the groove 9. With the rotation of the first collection shaft, the relative position of the protrusion 11 and the groove 9 also changes accordingly. When the protrusion is located at the groove 9, the above-mentioned The ribs are in a natural state, and there is no force in the axial direction parallel to the first collection axis. At this time, the carbon ribbon has no tension force, as shown in Figure 10. In the figure, the protrusion 11 is relatively fixed (located in the lower shell above), when the first collecting shaft rotates along the first direction, the groove straight surface 30 of the first collecting shaft leaves the raised straight surface 13, and then the upper inclined surface 31 of the first collecting shaft contacts the raised upper inclined surface 12, and the first collecting shaft is in the Under the action of the driving force of the drive shaft of the printing device rotating in the first direction, and because the contact surface between the first receiving shaft and the protrusion is an inclined plane at this time, the friction force is relatively small, so the first receiving shaft can continue to rotate in the first direction , at this time the carbon ribbon is in a tensioned state, but there is no tension.

Similarly, if the first collection shaft rotates along the second direction, then as shown in Figure 11, the groove straight face 30 of the first collection shaft is in contact with the raised straight face 13, because the contact surfaces are all straight faces, so the first collection shaft now It is locked between the protrusion and the protrusion (under the condition that the breaking force of the protrusion material is not exceeded), in this state, the first collection shaft cannot rotate in the second direction, which prevents the first collection shaft from rotating in the second direction on the rotation.

As shown in Figure 12, the first receiving shaft continues to rotate along the first direction under the action of the driving force of the driving shaft of the printing device along the first direction. 33 is in contact with the convex top plane 32, because the non-groove surface 33 and the groove 9 are not on the same plane, so at this time the non-groove surface will produce a pressure F along the axial direction of the first collection axis on the convex top plane. Under the action of the force F, the rib structure is deformed, and at the same time, a force F1 equal in magnitude and opposite to the force F is generated on the non-groove surface 33 of the first collection shaft, and the first collection shaft is in tension under the action of the force F1. Tight state, that is, the carbon ribbon is in a tensioned state, which effectively prevents the ribbon ribbon phenomenon.

When the printing device receives a continuous printing command, the drive shaft of the printing device provides a continuous driving force along the first direction, as shown in Figure 13, the groove of the first receiving shaft is directly in contact with the protrusion, preventing the second A collection shaft rotates along the second direction, thereby repeating the above process, realizing the cooperation between the first collection shaft and the protrusion at the top of the rib structure, and preventing the first collection shaft while providing the tension force required by the carbon ribbon. The shaft rotates in the second direction. At the same time, it should be pointed out that the ribs should not be too long to ensure that the ribs have sufficient stiffness to provide tension. An optional method is to calculate the maximum tension force according to the driving force provided by the label printing device, measure the compressive stress per unit length of the material used in the cavity, and determine the length of the ribs.

Of course, the positions of the above projections and grooves can be interchanged, that is, the direction limiting member is arranged on the end face of the first collection shaft and arranges a plurality of projections around the centerline of the first collection shaft, and the free ends of the ribs are provided with The protrusion matches the groove, and the protrusion is provided with a sliding surface when the first take-up shaft is rotated in a first direction during normal printing and a stop when the first take-up shaft is rotated in a second direction opposite to that of normal printing The groove is provided with a sliding mating surface and a blocking mating surface respectively matched with the sliding surface and the blocking surface, wherein the sliding surface and the sliding mating surface are inclined surfaces, and the blocking surface and the blocking mating surface are right-angled surfaces.

Claims (10)

1. label printing device ribbon cartridge, comprise box body, be arranged in described box body and the first winding off spindle that batches with discharge that is used for print media not that is connected with described inboard wall of cartridge rotating shaft, for print media collect first collect axle, it is characterized in that, described first collects and is provided with described the first limit of collecting rotational axis direction of restriction on the end face of axle to part, and described inboard wall of cartridge and described first is collected limit on axle and is provided with the limit that coordinates to part with described limit to the corresponding position of part to accessory.

2. label printing device ribbon cartridge as claimed in claim 1, is characterized in that, described limit is that an end is fixedly connected with inboard wall of cartridge to accessory, and the other end is unsettled has certain flexible rib.

3. label printing device ribbon cartridge as claimed in claim 2, it is characterized in that, described limit is to be arranged at described first to collect and collect shaft centre line around described first on the end face of axle and arrange a plurality of grooves to part, the free end of described rib is provided with the projection with described groove coupling, prevention face when the sliding surface when described groove is provided with first direction when described first collects axle along normal the printing and rotates and the second direction rotation when described first collects axle along the normal rightabout of printing, be provided with on described projection respectively that the slip that is complementary with described sliding surface and prevention face connects face and prevention connects face.

4. label printing device ribbon cartridge as claimed in claim 2, it is characterized in that, described limit is to be arranged at described first to collect and collect shaft centre line around described first on the end face of axle and arrange a plurality of projections to part, the free end of described rib is provided with the groove with described projection coupling, prevention face when the sliding surface that described projection is provided with first direction when described first collects axle along normal the printing when rotating and the second direction rotation when described first collects axle along the normal rightabout of printing, be provided with on described groove respectively that the slip that is complementary with described sliding surface and prevention face connects face and prevention connects face.

5. label printing device ribbon cartridge as described in claim 3 or 4, is characterized in that, it is the inclined plane that described sliding surface and slip connect face, and it is the right angle face that described prevention face and prevention connect face.

6. label printing device ribbon cartridge as claimed in claim 5, is characterized in that, also comprises the second winding off spindle that batches with discharge for the transparency printing medium.

7. label printing device ribbon cartridge as claimed in claim 6, is characterized in that, also comprises the 3rd winding off spindle that batches with discharge for resisting medium.

8. label printing device ribbon cartridge as described in claim 3 or 4, is characterized in that, described rib has a plurality of.

9. label printing device ribbon cartridge as claimed in claim 8, is characterized in that, described rib has a pair of.

10. label printing device ribbon cartridge as claimed in claim 9, is characterized in that, described a pair of rib is distributed in described the first both sides of collecting axle symmetrically.

Images