一种退刀结构和打印机

Abstract

本申请公开了一种退刀结构和打印机。其中，推刀结构包括第一本体、动刀组件、操作件和推动件；第一本体约束槽，所述约束槽的延伸方向相对Y轴方向沿Z轴方向倾斜；操作件绕第一转动轴线转动于第一位置和第二位置之间；推动件贯穿约束槽与操作件抵接并与约束槽松配，以使推动件获得沿约束槽的延伸方向位移的自由度以及在约束槽内垂直于X轴方向摆动的自由度，从而在操作件从第一位置运动至第二位置过程中，推动件运动至与处于卡刀状态的动刀组件的第一齿条啮合后，继续沿Y轴方向推动第一齿条，使动刀组件向初始位置运动。打印机包含了上述退刀结构。采用上述技术方案，退刀结构的结构更简单，装配更容易。

Claims

1. A retraction structure, comprising a first body, a moving blade assembly, and an operating member; the moving blade assembly moves relative to the first body along the Y-axis between an initial position and a cutting position and is provided with a first rack extending along the Y-axis; the operating member rotates relative to the first body about a first rotation axis extending along the X-axis between a first position and a second position. characterized in that It also includes a pusher component; The first body is provided with a constraint groove, and the extension direction of the constraint groove is inclined along the Z-axis direction relative to the Y-axis direction; The pusher passes through the constraint groove and abuts against the operating member and loosely engages with the constraint groove, so that the pusher has the degree of freedom to displace along the extension direction of the constraint groove and the degree of freedom to swing in the constraint groove perpendicular to the X-axis direction. Thus, during the process of the operating member moving from the first position to the second position, after the pusher moves to engage with the first rack of the moving tool assembly in the tool-locking state, it continues to push the first rack along the Y-axis direction, so that the moving tool assembly moves back to the initial position.

2. The relief structure of claim 1, wherein the relief structure is defined by The first rack is located above the first rotation axis along the Z-axis direction, and the first rack is defined to move forward along the Y-axis direction from the initial position to the cut-off position; the extension direction of the constraint groove is inclined backward in the upward direction.

3. The relief structure of claim 2, wherein, The first rack has at least one first tooth along the Y-axis direction, and at least part of the front surface of the first tooth is inclined forward in a downward direction from the tooth root to the tooth tip.

4. The relief structure according to any one of claims 1 to 3, wherein It also includes a first elastic element, which is placed between the first body and the pusher to drive the pusher away from the first rack.

5. The relief structure of claim 4 wherein, The first body includes a first base frame and a first side cover fixedly connected to each other. A portion of the operating member is disposed between the first base frame and the first side cover along the X-axis direction. The constraint groove is formed on the inner wall of the first side cover facing the first base frame. The inner wall of the first side cover is also provided with a protrusion for abutting against the first elastic member.

6. A printer characterized by, It includes a fixed blade and a retractable blade structure as described in any one of claims 1 to 5, wherein the fixed blade cooperates with a moving blade assembly that moves from an initial position to a cutting position to cut the printing material.

7. The printer of claim 6, wherein, It also includes a second body; the fixed tool is mounted on the second body; the second body moves relative to the first body in a direction perpendicular to the X-axis between a locked position and an unlocked position; the operating element is also used to release the second body from the lock relative to the first body.

8. The printer of claim 7, wherein It also includes a locking lever, an unlocking component, and a second elastic component; the first body is provided with a locking groove; the locking lever is installed on the second body and is located in the locking groove when the second body is in the locked position; the unlocking component is connected to the operating component and is provided with an unlocking part, the unlocking part pushes the locking lever out of the locking groove when the operating component moves from the first position to the second position, so that the second body is allowed to move to the unlocked position; The second elastic element is placed between the first body and the operating element or unlocking element, and stores energy when the operating element moves from the first position to the second position, and releases energy when the operating element is released away from the first position to drive the operating element to reset to the first position.

9. The printer of claim 8, wherein, It also includes a transmission component, a drive gear, a drive motor, and a clutch mechanism; the moving blade assembly is provided with a second rack extending along the Y-axis; the transmission component rotates relative to the first body about a third rotation axis extending along the X-axis and is provided with a transmission gear that meshes with the second rack; the drive gear is driven by the drive motor to rotate about a fourth rotation axis; the clutch mechanism is driven by an operating component, and when the operating component is in a first position, it establishes a transmission relationship between the drive gear and the transmission gear, and when the operating component is away from the first position, it disengages the drive gear from the transmission gear.

10. The printer of claim 9, wherein, The clutch mechanism includes a clutch element and a clutch gear; the clutch element rotates relative to the first body about a third rotation axis extending along the X-axis and is provided with a mating part and a convex shaft away from the third rotation axis, the mating part abutting against the unlocking element; the clutch gear is mounted on the convex shaft and meshes with the transmission gear; the clutch gear meshes with the drive gear when the operating element is in the first position, and disengages from the drive gear when the operating element is away from the first position.

11. The printer of claim 10, wherein, The unlocking component is provided with a mating groove, and the mating part is away from the third rotation axis and extends into the mating groove.

12. The printer of claim 10, wherein, It also includes a third elastic element that stores energy when the transmission gear drives the cutting blade assembly to move from the initial position to the cutting position, and releases energy when the clutch gear disengages from the drive gear to apply a force to the transmission gear to drive the cutting blade assembly to move to the initial position.

13. The printer of claim 12, wherein, It also includes a reset gear that meshes with the transmission gear; the third elastic element is a torsion spring and is placed between the reset gear and the first body.

Images