Paper feeding width adjusting mechanism of printer

Abstract

The invention discloses a paper feeding width adjusting mechanism of a printer. The paper feeding width adjusting mechanism comprises a paper feeding width adjusting body, an adjusting plate I, an adjusting plate II, a rotating swing rod and a locking structure. The adjusting plate I and the adjusting plate II are installed on the two sides of the front face of the paper feeding width adjusting body respectively and can horizontally move along sliding grooves in the paper feeding width adjusting body, and the corresponding sliding grooves of the adjusting plate I and the adjusting plate II are not in the same straight line. The rotating swing rod is rotationally connected to the middle of the back of the paper feeding width adjusting body, and meanwhile the two ends of the rotating swing rod are connected with the adjusting plate I and the adjusting plate II correspondingly to make the adjusting plate I and the adjusting plate II move oppositely or oppositely; and the locking structure is used for locking the position of the adjusting plate I. The method has the advantages of being low in part precision requirement, small in machining difficulty and the like, especially has few installation procedures, and is suitable for large-scale industrial production.

Description

Technical Field

[0001] The invention relates to the technical field of printers, and in particular to a paper feed width adjustment mechanism for a printer. Background Art

[0002] Printers are equipped with paper width adjustment mechanisms to adapt to different widths of paper (for printing different sizes of paper), but the existing paper width adjustment mechanisms mostly use gear racks or lead screw nut mechanisms, which have high requirements for component precision and are difficult to process. There are also many types of parts and complex installation procedures. Moreover, complex mechanical structures may mean more moving parts, which increases the risk of failure, thereby affecting printing quality and efficiency. Summary of the invention

[0003] In view of this, the present invention provides a printer paper feed width adjustment mechanism, which has low requirements on component precision and has the advantages of low processing difficulty, especially fewer installation steps, and is suitable for mass industrial production.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A printer paper feed width adjustment mechanism comprises a paper feed width adjustment body, an adjustment plate I, an adjustment plate II, a rotating swing rod and a locking structure;

[0006] The adjustment plate I and the adjustment plate II are respectively installed on both sides of the front of the paper feed width adjustment body, and both can move horizontally along the slide groove on the paper feed width adjustment body, and the corresponding slide grooves of the two are not on the same straight line; the rotating swing rod is rotatably connected to the middle part of the back of the paper feed width adjustment body, and at the same time, the two ends of the rotating swing rod are respectively connected to the adjustment plate I and the adjustment plate II, so that the two move towards or oppositely; the locking structure is used to lock the position of the adjustment plate I.

[0007] Furthermore, the adjustment plate I and the adjustment plate II are both installed on the slide groove of the paper feed width adjustment body by means of a snap-fit ​​installation method.

[0008] Furthermore, a slider is provided on the back of the adjustment plate I and the adjustment plate II, and limit platforms are provided on both sides of the slider. The limit platforms are used to engage with the back of the paper feed width adjustment body, and the connecting line of the two limit platforms is perpendicular to the length direction of the slide groove; the bottom of the slider extends toward the middle of the paper feed width adjustment body and is used to be connected to the end of the rotating rocker arm.

[0009] Furthermore, the limiting platform is a right-angled triangular prism structure, one right-angled surface of which is fixed on the slider, and the other right-angled surface is used to engage with the back side of the paper feed width adjustment body.

[0010] Furthermore, waist-shaped holes are provided at both ends of the rotating swing rod, and a cylindrical protrusion is provided at the end of the extended part of the bottom of the sliding block, and the cylindrical protrusion is inserted into the waist-shaped hole.

[0011] Furthermore, a rotating center shaft is provided in the middle of the back side of the paper feed width adjustment body, a clamping table is provided at the end of the rotating center shaft, a center hole is provided in the middle of the rotating rocker arm, the rotating rocker arm is nested on the rotating center shaft through the shaft hole, and is limited by the clamping table.

[0012] Furthermore, the locking structure includes an adjusting handle and a limiting groove; the adjusting handle is arranged on the side of the adjusting plate I, and a plurality of limiting grooves are arranged on the paper feed width adjustment body along the moving direction of the adjusting plate I, corresponding to the position of the adjusting handle.

[0013] Furthermore, the head of the regulating pressure handle has a sharp angle of 60 degrees.

[0014] Beneficial effects:

[0015] 1. The present invention manually moves the adjustment plate I to the left and right, rotates the swing rod to swing, and drives the adjustment plate II to move in the opposite direction, so that the printed paper will be symmetrical about the central plane of the paper feed width adjustment body and achieve the clamping effect at the same time. The adjustment mechanism is simple in composition, has low requirements for the precision of parts, has the advantages of low processing difficulty, and especially has few installation procedures, which is suitable for mass industrial production. Moreover, due to the low requirements for the precision of parts, the probability of damage is lower and the mechanism reliability is high.

[0016] 2. The adjustment plate I and the adjustment plate II of the present invention are both installed on the slide groove of the paper feed width adjustment body by means of a snap-fit ​​installation method, and the installation does not require the aid of special tools, thereby improving the installation efficiency.

[0017] 3. The paper feed width adjustment body of the present invention is also connected to the rotating swing arm through a buckle structure, which is convenient to install and can be quickly installed by pressing.

[0018] 4. The locking structure of the present invention is simple in structure and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention.

[0020] Figure 2 It is the back view of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the left adjustment plate of the present invention.

[0022] Among them, 1-paper feed width adjustment body, 2-left adjustment plate, 3-right adjustment plate, 4-rotating swing rod, 5-adjusting pressure handle, 6-limiting groove, 7-limiting platform, 8-cylindrical protrusion. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0024] The present invention provides a paper feed width adjustment mechanism for a printer, comprising a paper feed width adjustment body 1, an adjustment plate I, an adjustment plate II, a rotating swing rod 4 and a locking structure.

[0025] In this embodiment, the adjustment plate I and the adjustment plate II are respectively the adjustment plate 2 and the right adjustment plate 3. Figure 1 As shown, the left adjustment plate 2 and the right adjustment plate 3 are respectively installed on both sides of the front of the paper feed width adjustment body 1, and both can move horizontally along the slide groove on the paper feed width adjustment body 1, and the corresponding slide grooves of the two are not on the same straight line; the rotating swing rod 4 is rotatably connected to the middle part of the back of the paper feed width adjustment body 1, and at the same time, the two ends of the rotating swing rod 4 are respectively connected to the left adjustment plate 2 and the right adjustment plate 3, so that the left adjustment plate 2 and the right adjustment plate 3 move towards or oppositely; the locking structure is used to lock the position of the left adjustment plate 2. Of course, the locking structure can also be set to lock the position of the right adjustment plate 3, that is, only one side of the adjustment plate needs to be locked.

[0026] Specifically, the left adjustment plate 2 and the right adjustment plate 3 are both mounted on the slide groove of the paper feed width adjustment body 1 by means of a snap-on installation. The slide groove on the paper feed width adjustment body 1 is in the shape of a long strip, the slide groove corresponding to the left adjustment plate 2 is located at the upper part, and the slide groove corresponding to the right adjustment plate 3 is located at the lower part; Figure 2 As shown, the back of the left adjustment plate 2 and the right adjustment plate 3 are both provided with sliders, and the positions of the sliders on the left adjustment plate 2 and the right adjustment plate 3 correspond to the positions of the two slide grooves. Limiting platforms 7 are provided on both sides of the slider, and the limiting platforms 7 are used to engage with the back of the paper feed width adjustment body 1. The connecting line of the two limiting platforms 7 is perpendicular to the length direction of the slide groove; the bottom of the slider extends to the middle of the paper feed width adjustment body 1, and is used to connect with the end of the rotating swing rod 4. In this embodiment, the limiting platform 7 is a right-angled triangular prism structure, one of the right-angled surfaces is fixed on the slider, and the other right-angled surface is used to engage with the back of the paper feed width adjustment body 1. During installation, the slider is aligned with the slide groove on the paper feed width adjustment body 1, and the quick installation can be completed by pressing down.

[0027] Waist-shaped holes are arranged at both ends of the rotating swing rod 4, and a cylindrical protrusion 8 is arranged at the end of the extended part at the bottom of the slider. The cylindrical protrusion 8 is inserted into the waist-shaped hole, and the cylindrical protrusion 8 can slide along the waist-shaped hole.

[0028] The paper feed width adjustment body 1 and the rotating swing rod 4 are also connected by a buckle structure. A rotating center axis is provided in the middle of the back of the paper feed width adjustment body 1, and a clamping table is provided at the end of the rotating center axis. A center hole is provided in the middle of the rotating swing rod 4. The rotating swing rod 4 is nested on the rotating center axis through the shaft hole and is limited by the clamping table. When installing, align the center hole of the rotating swing rod 4 with the rotating center axis of the paper feed width adjustment body 1, and press to complete the quick installation.

[0029] The locking structure includes an adjustment handle 5 and a limiting groove 6; the adjustment handle 5 is arranged on the side of the left adjustment plate 2, and a plurality of limiting grooves 6 are arranged on the upper surface of the paper feed width adjustment body 1 along the moving direction of the left adjustment plate 2, corresponding to the position of the adjustment handle 5. Figure 3 As shown, the adjustment handle 5 is L-shaped, with the horizontal portion fixedly connected to the side of the left adjustment plate 2 and the vertical portion facing downward. Preferably, the end of the vertical portion is a 60-degree sharp angle.

[0030] Working principle description: When locked, the tip of the vertical part of the adjustment handle 5 on the left adjustment plate 2 is embedded in the limit slot 6 of the paper feed width adjustment body 1, and the left and right movement is locked. Press the adjustment handle 5 inward by hand, and the adjustment handle 5 is deformed to disengage from the limit slot 6 of the paper feed width adjustment body 1. At this time, the left adjustment plate 2 can be moved left and right manually, and the swing rod 4 is rotated to swing, driving the right adjustment plate 3 and the left adjustment plate 2 to move in the opposite direction, thereby making the printed paper symmetrical about the central plane of the paper feed width adjustment body 1 and achieving a clamping effect. Loosen the adjustment handle, and the tip of the vertical part of the adjustment handle 5 of the left adjustment plate 2 is embedded in the limit slot 6 of the paper feed width adjustment body 1 to achieve a locking effect.

[0031] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printer paper feed width adjustment mechanism, characterized in that: It includes a paper feed width adjustment body, an adjustment plate I, an adjustment plate II, a rotating swing rod and a locking structure; The adjustment plate I and the adjustment plate II are respectively installed on both sides of the front of the paper feed width adjustment body, and both can move horizontally along the slide groove on the paper feed width adjustment body, and the corresponding slide grooves of the two are not on the same straight line; the rotating swing rod is rotatably connected to the middle part of the back of the paper feed width adjustment body, and at the same time, the two ends of the rotating swing rod are respectively connected to the adjustment plate I and the adjustment plate II, so that the two move towards or oppositely; the locking structure is used to lock the position of the adjustment plate I.

2. The printer paper feed width adjustment mechanism according to claim 1, characterized in that: The adjusting plate I and the adjusting plate II are both installed on the slide groove of the paper feed width adjusting body by means of a snap-fit ​​installation method.

3. The printer paper feed width adjustment mechanism according to claim 2, characterized in that: The back of the adjustment plate I and the adjustment plate II are both provided with sliders, and limit platforms are provided on both sides of the sliders. The limit platforms are used to engage with the back of the paper feed width adjustment body, and the connecting line of the two limit platforms is perpendicular to the length direction of the slide groove; the bottom of the slider extends toward the middle of the paper feed width adjustment body and is used to be connected to the end of the rotating rocker arm.

4. The printer paper feed width adjustment mechanism according to claim 3, characterized in that: The limit platform is a right-angled triangular prism structure, one right-angled surface of which is fixed on the slider, and the other right-angled surface is used to engage with the back of the paper feed width adjustment body.

5. The printer paper feed width adjustment mechanism according to claim 3 or 4, characterized in that: The two ends of the rotating swing rod are provided with waist-shaped holes, and the end of the extended part at the bottom of the sliding block is provided with a cylindrical protrusion, and the cylindrical protrusion is inserted into the waist-shaped hole.

6. The printer paper feed width adjustment mechanism according to claim 5, characterized in that: A rotating center shaft is provided in the middle of the back of the paper feed width adjustment body, a clamping table is provided at the end of the rotating center shaft, a center hole is provided in the middle of the rotating swing arm, the rotating swing arm is nested on the rotating center shaft through the shaft hole, and is limited by the clamping table.

7. The printer paper feed width adjustment mechanism according to claim 1, characterized in that: The locking structure includes an adjusting handle and a limiting groove; the adjusting handle is arranged on the side of the adjusting plate I, and a plurality of limiting grooves are arranged on the paper feed width adjusting body along the moving direction of the adjusting plate I, corresponding to the position of the adjusting handle.

8. The printer paper feed width adjustment mechanism according to claim 7, characterized in that: The head of the regulating pressure handle has a sharp angle of 60 degrees.

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