Printer and cutting device of printer
阅读说明:本技术 打印机及打印机的裁切装置 (Printer and cutting device of printer ) 是由 井上信宏 石田徹吾 于 2019-09-10 设计创作,主要内容包括:本发明提供一种打印机及打印机的裁切装置。该打印机具有:第一刀片,其能够在待机位置和切断位置之间移动;第二刀片,其能够与处于所述切断位置的所述第一刀片接触;驱动机构,其驱动所述第一刀片;以及第一弹性部件,其拉拽处于所述切断位置的所述第一刀片,所述第一刀片处于所述切断位置时,所述第一弹性部件对所述第一刀片朝着向所述待机位置移动的方向进行拉拽,并对所述第一刀片朝着接近所述第二刀片的方向进行拉拽。(The invention provides a printer and a cutting device of the printer. The printer has: a first blade movable between a standby position and a cutting position; a second blade contactable with the first blade in the severing position; a drive mechanism that drives the first blade; and a first elastic member that pulls the first blade in the cutting position, the first elastic member pulling the first blade in a direction of moving to the standby position and pulling the first blade in a direction of approaching the second blade when the first blade is in the cutting position.)
1. A printer, comprising:
a first blade movable between a standby position and a cutting position;
a second blade contactable with the first blade in the severing position;
a drive mechanism that drives the first blade; and
a first elastic member that pulls the first blade in the cutting position,
when the first blade is in the cutting position, the first elastic member pulls the first blade in a direction of moving to the standby position and pulls the first blade in a direction of approaching the second blade.
2. The printer of claim 1,
the driving mechanism is also provided with an engaging part,
the first blade is moved from the standby position to the cutting position by engaging with the engaging portion,
the first blade moves from the cutting position to the standby position when the first blade is separated from the engaging portion after moving to the cutting position.
3. Printer according to claim 1 or 2,
the first elastic member is a tension spring hung on a hook provided at the center in the width direction of the movable blade.
4. The printer of claim 3,
the hook portion has a resin member.
5. The printer of claim 3,
the spring length of the extension spring is at a maximum when the first blade is in the cutting position.
6. The printer of claim 1,
the cutter blade further includes a second biasing member that pulls the first blade in a direction to move to the cutting position when the first blade is in the standby position.
7. The printer according to claim 1, further comprising:
an apparatus main body having a printing mechanism portion and a paper holding portion for holding paper; and
a cover portion provided on the apparatus main body to be rotatable and serving as a cover for the paper,
the second blade is provided on the side of the paper holding portion than the first blade.
8. A cutting device, comprising:
a first blade movable between a standby position and a cutting position;
a second blade contactable with the first blade in the severing position;
a drive mechanism that drives the first blade; and
a first elastic member that pulls the first blade in the cutting position,
when the first blade is in the cutting position, the first elastic member pulls the first blade in a direction of moving to the standby position and pulls the first blade in a direction of approaching the second blade.
Technical Field
The present invention relates to a printer and a cutting device for the printer.
Background
Patent document 1 describes a printer with a cutting device mounted thereon. The cutting device of this document is a so-called two-blade cross type cutting device, and is configured such that a movable blade linearly reciprocates upon receiving a driving force from a driving motor. The movable blade moves from a position open with respect to the fixed blade, and when intersecting the fixed blade, cuts the paper sheet inserted therebetween. After the cutting action, the movable blade shifts to the restoration action and moves again to the open position. Further, the cutting device of this document includes a biasing means configured to apply a biasing force to the movable blade in a direction of cutting the sheet by a coil spring or the like and to accumulate the biasing force in the coil spring in association with the return operation of the movable blade, in order to easily cut the sheet made of a thick material which is difficult to cut.
However, in the cutting device described in patent document 1, since a coil spring that applies a biasing force to the movable blade in the direction of cutting the paper is provided, there is a possibility that the movable blade is returned to the restoring operation and moves again to the open position after the cutting operation.
Patent document 1: japanese patent laid-open publication No. 2005-161481
Disclosure of Invention
A printer according to one embodiment of the present application includes: a first blade movable between a standby position and a cutting position; a second blade capable of contacting the first blade in the severing position; a drive mechanism that drives the first blade; and a first elastic member that pulls the first blade in the cutting position, the first elastic member pulling the first blade in a direction of moving to the standby position and pulling the first blade in a direction of approaching the second blade when the first blade is in the cutting position.
In the printer according to one embodiment, it is preferable that the driving mechanism further includes an engaging portion, the first blade is moved from the standby position to the cutting position by engaging with the engaging portion, and the first blade is moved from the cutting position to the standby position when separated from the engaging portion after being moved to the cutting position.
In the printer according to one embodiment, preferably, the first elastic member is a tension spring hooked on a hook portion provided at a center of the movable blade in a width direction.
In the printer according to one embodiment, preferably, the hook portion includes a resin member.
In the printer of an embodiment, it is preferable that the spring length of the extension spring is maximized when the first blade is in the cutting position.
In the printer according to one embodiment, it is preferable that the printer further includes a second biasing member that pulls the first blade in a direction to move to the cutting position when the first blade is at the standby position.
In the printer according to one embodiment, it is preferable that the printer further includes: an apparatus main body having a printing mechanism portion and a paper holding portion for holding paper; and a cover portion which is provided on the apparatus main body so as to be rotatable and serves as a cover for the sheet, wherein the second blade is provided on the sheet holding portion side with respect to the first blade.
Drawings
Fig. 1 is a perspective view showing a printer according to the present embodiment.
Fig. 2 is a side sectional view showing an outline of the printer.
Fig. 3A is a perspective view showing an outline of the cutting device (when the movable blade is on standby).
Fig. 3B is a perspective view showing the outline of the cutter (when the movable blade is fully stroked).
Fig. 4A is a perspective view showing a mechanism of the movable blade (when the movable blade is on standby).
Fig. 4B is a perspective view showing the mechanism of the movable blade (at the time of full stroke of the movable blade).
Fig. 5A is a side view showing the mechanism of the movable blade (when the movable blade is on standby).
Fig. 5B is a side view showing the mechanism of the movable blade (at the time of full stroke of the movable blade).
Fig. 6A is a plan view showing the mechanism of the movable blade (when the movable blade is on standby).
Fig. 6B is a plan view showing the mechanism of the movable blade (at the time of full stroke of the movable blade).
Fig. 7 is an enlarged cross-sectional view of a portion B in fig. 5A.
Detailed Description
The present embodiment will be described below. The present embodiment described below is not intended to unduly limit the contents of the present invention described in the claims. Note that all the configurations described in the present embodiment are not essential to the present invention.
Integral structure of printer
First, the printer 1 according to the present embodiment will be described with reference to fig. 1 and 2.
Fig. 1 is a perspective view showing a printer according to the present embodiment. Fig. 2 is a side sectional view showing an outline of the printer. In the following drawings, for convenience of explanation, X, Y, and Z axes are illustrated as 3 axes orthogonal to each other. Hereinafter, the direction parallel to the X axis is referred to as "X axis direction", the direction parallel to the Y axis is referred to as "Y axis direction", the direction parallel to the Z axis is referred to as "Z axis direction", the X axis direction is referred to as "width direction", "Y axis direction" rear "or" cutting direction "," Y axis direction "front" or "retreat direction", "Z axis direction" upper ", and the Z axis direction is referred to as" lower "or" engaging direction ".
As shown in fig. 1, the printer 1 includes: a box-shaped apparatus
The apparatus
As shown in fig. 2, a
The
The printer 1 drives a conveyance motor and conveys the
The fixed blade 22 (second blade) of the
Structure of cutting device
Next, the structure of the
Fig. 3A and 3B are perspective views showing the outline of the cutter device, in which fig. 3A shows the movable blade in standby, and fig. 3B shows the movable blade in full stroke. Fig. 4A and 4B are perspective views showing the mechanism of the movable blade, fig. 4A showing the movable blade in standby, and fig. 4B showing the movable blade in full stroke. Fig. 5A and 5B are side views showing the mechanism of the movable blade, fig. 5A showing the movable blade in standby, and fig. 5B showing the movable blade in full stroke. Fig. 6A and 6B are plan views showing the mechanism of the movable blade, fig. 6A showing the movable blade in standby, and fig. 6B showing the movable blade in full stroke. Fig. 7 is an enlarged cross-sectional view of a portion B in fig. 5A.
As shown in fig. 3A and 3B, the cutting
The
As shown in fig. 3A and 3B, the
The fixed
The driving
The large-
When the large-
The
Thereafter, when the
At this time, at the standby position, the standby position in the Y direction is limited within a certain range by the standby
Then, when the
The
The first
The driving
Further, if the angle at which the biasing direction L2, which is the direction in which the biasing force of the first biasing
Here, when the angle a is less than 10 °, the pressing force between the
Further, at a position where the
The second force application member 52 (second elastic member) is an extension spring that is provided between the
Further, since the second biasing
Further, the second
Further, since the second biasing
Further, the second biasing
As shown in fig. 7, a
As a constituent material of the
As described above, the
Further, the printer 1 of the present embodiment includes the
The present invention is not limited to the above embodiments. For example, the cutting
The
Although the above-described embodiment shows the so-called two-blade cross
The following describes the content derived from the above-described embodiments.
A cutting device, comprising: fixing a blade; a movable blade configured to be capable of reciprocating in parallel to a blade surface of the fixed blade; a driving unit that causes the movable blade to perform the reciprocating movement; and a first biasing member that biases the movable blade so as to set a direction in which the movable blade approaches the fixed blade in the direction of the reciprocating movement as a cutting direction, setting a direction in which the movable blade is separated from the fixed blade in the direction of the reciprocating movement as a retreat direction, when the direction in which the movable blade is pressed against the fixed blade in the direction perpendicular to the blade face of the movable blade is set as the engagement direction, the first urging member urges the movable blade in the retracting direction and the engaging direction, the drive unit includes an engagement portion for driving the movable blade in the cutting direction against the urging force of the first urging member, and when the engagement between the movable blade and the engagement portion is released, the movable blade is configured to retract in the retraction direction by the urging force of the first urging member.
According to this configuration, since the movable blade is retracted in the retracting direction by the urging force of the first urging member when the engagement between the movable blade and the engagement portion is released, the urging force of the first urging member acts in the retracting direction of the movable blade, and the movable blade can be quickly returned to the standby position (open position) after cutting, thereby increasing the cutting speed of the cutting device.
In the cutting device, it is preferable that, when an angle at which the biasing direction of the first biasing member and the retraction direction intersect is defined as an angle a, the angle a is in a range of 10 ° or more and 80 ° or less at a position where the movable blade and the fixed blade are in contact with each other, and the angle a is in a range of 60 ° or more and 100 ° or less at a position where the movable blade and the fixed blade are not in contact with each other.
According to this structure, since the angle a is in the range of 10 ° or more and 80 ° or less at the position where the movable blade and the fixed blade are in contact, the movable blade can be urged in the retracting direction and the engaging direction. Therefore, after cutting, the movable blade can be quickly returned to the standby position, and the pressing force of the movable blade and the fixed blade can be increased during cutting, so that stable cutting can be performed.
Further, since the angle a is in the range of 60 ° or more and 100 ° or less at the position where the movable blade and the fixed blade do not contact, the installation space of the first urging member can be reduced.
In the above cutting device, it is preferable that the first urging member is a tension spring hooked on a hook portion provided at a center of the movable blade in a width direction.
According to this configuration, since the first urging member is an extension spring, it can be easily obtained. Further, since the first biasing member is hooked on the hook portion provided at the center in the width direction of the movable blade, the biasing force can be stably applied to the center of the movable blade.
In the above cutting device, it is preferable that a resin member is provided to the hook portion.
According to this configuration, since the resin member is provided in the hook portion that hooks the first urging member, it is possible to reduce wear of the first urging member and the hook portion.
In the above cutting device, it is preferable that, in cutting of the sheet by the reciprocating movement of the movable blade, a spring length of the tension spring is maximized at a final position of the movable blade at which the cutting is completed.
According to this configuration, since the spring length of the tension spring is maximized at the final position of the movable blade at which the cutting of the sheet is completed, the biasing force of the tension spring can be maximized at the final position of the movable blade at which the cutting of the sheet is completed, and the movable blade can be quickly returned to the standby position.
In the above cutting device, it is preferable that the cutting device further includes a second urging member that urges the movable blade in a direction to cancel out the urging force of the first urging member.
According to this configuration, since the second urging member that urges the movable blade in the direction of canceling the urging force of the first urging member is further provided, when the movable blade is retracted in the retraction direction by the urging force of the first urging member, the urging force of the first urging member that urges the movable blade in the retraction direction can be weakened, and thus the impact noise can be reduced.
The printer is a printer having the cutting device, and is characterized by comprising: an apparatus main body having a printing mechanism portion and a paper holding portion for holding paper; and a cover portion that is provided on the apparatus main body so as to be rotatable and serves as a cover for the sheet, wherein the cutting device is disposed on the apparatus main body, and the fixed blade is disposed on the sheet holding portion side with respect to the movable blade.
According to this configuration, since the cutting device is provided in which the movable blade is retracted in the retraction direction by the biasing force of the first biasing member after cutting, the movable blade can be quickly returned to the standby position (open position) after cutting, and thus a printer with high printing speed can be provided.
Further, since the fixed blade is disposed closer to the paper holding portion than the movable blade, a paper conveyance path can be provided between the driving unit that drives the movable blade and the paper holding portion, and the printer can be downsized.
Description of the symbols
1 … printer;
2 … paper sheet;
5 … discharge port;
6 … device body;
7 … paper holding part;
8 … a cover part;
10 … power switch;
12 … printing mechanism part;
14 … print head;
15 … platen roller;
16 … conveying channel;
20 … cutting device;
21 … a movable blade;
22 … fixing the blades;
23 … movable blade holder;
24 … support frame;
25 … hood frame;
26 … device body;
27 … incomplete teeth;
28 … guide holes;
29 … Z-direction restricting projection;
30 … driving part;
31 … driving motor;
32 … large diameter gear portion;
33 … small diameter gear portion;
34 … supporting a shaft;
35 … large diameter gear portion;
36 … an incomplete gear portion as an engaging portion;
37 … guide projection;
38 … Z-direction restricting member;
39 … standby position restricting projection;
40 … a top plate;
41 … guide holes;
42 … standby position limiting projection front limiting hole;
51 … a first force applying component;
52 … second force applying component;
53. 54, 55, 56 … hook;
60 … resin component;
l1 … back-off direction;
l2 … direction of force application.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:一种热敏打印头及其制造方法