CN102862719B - Cutting device for label medium of handheld label printer - Google Patents

Abstract

The invention discloses a label medium cutting device of a hand-held label printer, which comprises a base, a cutting mechanism, and a paper pressing mechanism. The base is provided with a guide groove and a transverse groove, and the cutting mechanism includes a push rod, a ladder-shaped movable blade, and a static blade. , the step-shaped moving blade is set opposite to the blade of the static blade; the step-shaped moving blade is placed in the guide groove of the base; the step-shaped moving blade is provided with a rivet, and the push rod is provided with a chute, and the rivet extends into the chute The push rod is slidably connected; the push rod is slidably connected to the base, and the stationary blade is fixed above the transverse groove. The cutting edge of the step-shaped moving blade is used. When moving from a non-cutting position to a cutting position to contact with the label medium, the two ends of the step-shaped moving blade first press the cut label medium, which can effectively prevent it from loosening, and then The stepped moving blade traverses the entire length of the label media for efficient cutting.

Description

A label medium cutting device for a handheld label printer

technical field

The invention relates to components of a printer, in particular to a label medium cutting device of a hand-held label printer.

Background technique

Many handheld label printers have employed various devices and methods for separating printed and unprinted label media. Among them are US Patent No. 4,844,629, author Hoyt's invention, which can be used to manually tear off label media with serrated edge slots and US Patent No. 5,078,523, which uses a motor to control the movement of the blade. The more complex cutting device. In addition, there is also a V-shaped blade invented by Chinese patent 99806715.

The cutting device of the handheld label printer needs to quickly and neatly separate the printed label medium from the unprinted label medium without breaking the wires, so as to reduce the burden on hands and ensure productivity. These existing technologies either leave uneven burrs after tearing off the label medium, which affects the appearance; or the friction of the cutting device is too large, resulting in laborious operation; or the cutting mechanism is too complicated, bulky and economically reasonable. miscalculation.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide a label medium cutting device for a hand-held label printer. Compared with the prior art, the device has a simple structure and labor-saving, and can quickly cut the label medium within a short distance. Crisp and smooth cutting without burrs.

The present invention realizes through following technical scheme:

A label medium cutting device for a hand-held label printer, comprising a base, a cutting mechanism, and a paper pressing mechanism. The base is provided with a guide groove and a transverse groove. The cutting mechanism includes a push rod, a stepped movable blade, and a static blade. The ladder-shaped movable blade is set opposite to the blade of the static blade; the ladder-shaped movable blade is placed in the guide groove of the base; the stepped movable blade is provided with a rivet, and the push rod is provided with a chute, and the rivet extends into the chute The inside is slidably connected with the push rod; the push rod is slidably connected with the base, and the static blade is fixed above the transverse groove.

The static blade is fixed above the transverse groove, specifically, the static blade is fixed above the transverse groove through a static blade insertion port arranged on one side of the base, and a cover is provided at the insertion port.

The push rod is provided with a return spring; the rivet is provided with a pressing spring for pressing the stepped movable blade.

One end of the base is provided with a transverse slot allowing label media to pass through.

The pressing mechanism consists of a spring-loaded slide plate and a sheet metal part fixed on the base.

The power transmission ratio of the push rod and the step-shaped movable blade is 1:3.

Compared with the prior art, the present invention has the following advantages:

The cutting edge of the stepped movable blade is used. When moving from a non-cutting position to a cutting position until it contacts the label medium, the two ends of the stepped movable blade first press the cut label medium, which can effectively prevent it from loosening, and then The stepped moving blade traverses the entire length of the label media for efficient cutting. Compared with the V-shaped blade in the prior art, the trapezoidal movable blade is not sensitive to the offset and displacement of the position of the label medium, and can also meet the cutting of the label medium with a narrower width, and has a wider application range and greater stability. high.

The push rod which is connected with the stepped moving blade and works together to complete the cutting action, the operator can complete the cutting and taking out of the label medium with one hand, reducing the burden on the hand. The horizontal linear motion of the push rod is finally transformed into the linear sliding of the step-shaped moving blade. Compared with the pivoting push rod in the prior art, the unstable swing when the blade slides can be greatly reduced, thereby effectively reducing the forward resistance.

Ideally, the force transfer ratio between the push rod and the step-shaped movable blade reaches 1:3, which is an obvious advantage in devices with the same volume and distance.

Description of drawings

Fig. 1 is the assembly schematic diagram of the present invention;

Fig. 2 is axonometric schematic view of the present invention;

Fig. 3 is a schematic plan view of the cutting mechanism when the present invention is in a non-cutting position;

Fig. 4 is a schematic plan view of the cutting mechanism of the present invention when it is in the cutting position.

Detailed ways

The present invention will be described in further detail below in conjunction with specific embodiments.

Example

As shown in Figure 1-4. The label medium cutting device of the handheld label printer of the present invention includes a base 9, a cutting mechanism, and a paper pressing mechanism. The base 9 is provided with a guide groove and a transverse groove 10. The cutting mechanism includes a push rod 4 and a stepped movable blade 6. , the static blade 7, the step-shaped moving blade 6 is set opposite to the blade of the static blade 7; the step-shaped moving blade 6 is placed in the guide groove of the base 9; the step-shaped moving blade 6 is provided with a rivet 5, and the push rod 4 is provided with a chute, and the rivet 5 extends into the chute and is slidably connected with the push rod 4;

A return spring 12 is provided on the push rod 4 . The push rod 4 can be automatically returned from the cutting position to the non-cutting position.

The rivet 5 is provided with a pressing spring 11 for pressing the stepped movable blade 6 . The step-shaped movable blade 6 can always be in close contact with the static blade 7 at the cutting position, thereby greatly improving the cutting quality.

One end of the base 9 is provided with a transverse slot 10 allowing label media to pass through. The maximum allowable width of the label medium in this transverse groove 10 is 62 cm; the label medium smaller than this size can obviously pass through, because the stepped blade 6 of this patent is relatively insensitive to the size and position of the label medium, so it is applicable to different label mediums stronger.

The paper pressing mechanism includes a slide plate 2 pressed by a spring 3 and a sheet metal part 1 fixed on a base 9 . The pre-tightening force of the paper pressing mechanism can be adjusted by reasonably selecting springs 3 of different lengths and rigidities, so as to ensure that the label medium is neither crumpled nor too loose and loses the pressing effect.

The static blade 7 is fixed above the transverse groove 10, specifically, the static blade 7 is fixed above the transverse groove 10 through the insertion port of the static blade 7 arranged on one side of the base 9, and a cover 8 is provided at the insertion port. This helps to save space. When the space is enough, the static blade 7 can also be directly fixed with the base 9 by screws.

The ratio of the motion conversion force transmission between the push rod 4 and the stepped movable blade 6 is 1:3. Under the conditions of the same distance and space as the existing technology, the advantage of labor saving is outstanding.

When in the cutting position, the stationary blade 7 cooperates with the stepped movable blade 6 to define a cutting plane. When cutting, the two ends of the step-shaped movable blade 6 first press the contact point of the label medium on the cutting plane, which can prevent the label medium from creeping and wrinkling during the cutting process, and effectively improve the quality of the label medium cut-off; The middle part of the movable blade 6 presses the label medium, and the cutting plane is expanded, and finally the whole blade passes through the label medium to complete the cutting action.

As shown in Figure 3 and Figure 4. The operator manually pushes the push rod 4 in one direction, and the chute of the push rod 4 drives the rivet 5 to make the stepped movable blade 6 advance. The stepped movable blade 6 cooperates with the static blade 7 fixed on the base 9 to cut the label medium . The cut label medium is exposed outside the printer casing, and the operator can safely remove it at this time, and the return spring 12 sleeved on the push rod 4 can automatically reset the push rod 4 .

As described above, the present invention can be preferably carried out.

The above-mentioned embodiment is only a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (6)

1. the label media cutter sweep of a hand-held label printer, comprise base, cutting mechanism, paper-pressing mechanism, on base, be provided with guide groove and transverse groove, it is characterized in that: described cutting mechanism comprises, push rod, stepped appearance cutting blade, fixed blade, the blade of described stepped appearance cutting blade and fixed blade is oppositely arranged; Described stepped appearance cutting blade is placed in the guide groove of base; On stepped appearance cutting blade, be provided with rivet, be provided with skewed slot on push rod, rivet stretches in this skewed slot and is dynamically connected with pusher slide; Described push rod is connected with base sliding, and fixed blade is fixed on the top of transverse groove.

2. the label media cutter sweep of hand-held label printer according to claim 1, is characterized in that: push rod is provided with retracing spring.

3. the label media cutter sweep of hand-held label printer according to claim 2, is characterized in that: on rivet, be provided with the holddown spring for compressing stepped appearance cutting blade.

4. the label media cutter sweep of hand-held label printer according to claim 1, is characterized in that: paper-pressing mechanism comprises one by the slide plate of spring top clamping and is fixed on a sheet metal component on base.

5. the label media cutter sweep of hand-held label printer according to claim 1, it is characterized in that: fixed blade is fixed on the top of transverse groove, specifically, fixed blade is by being arranged on the fixed blade insert port of base one side, be fixed on the top of transverse groove, be provided with capping in this insert port.

6. the label media cutter sweep of hand-held label printer according to claim 1, is characterized in that: it is 1:3 that power transmission ratio is changed in push rod and the motion of stepped appearance cutting blade.