Automatic Curtain Cutting Machine

An automatic curtain cutting machine contains: a base, a support unit, a cutting device, a displacement device, and at least one clamp device. The base is configured to parallelly hold a curtain and to move the curtain thereon. A support unit includes multiple support sets and is configured to support the curtain. The cutting device moves on the base and includes a first space, a second space, and at least one cutter. The first space is configured to pass through the curtain and connects with the second space, and the at least one cutter is fixed outside the first space and vertically moves along a track of the curtain. The displacement device is disposed on the cutting device and moves as the cutting device moves so as to move the multiple support sets. The at least one clamp device is configured to clamp the curtain.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a curtain cutting machine, and more particularly to an automatic curtain cutting machine.

Description of the Prior Art

Curtains are applied to shield and decorate windows of a building, and a window blind is one of various types of curtains and is produced in a few lengths (i.e. lengths of a first rail, a second rail, and the multiple slats are equal to a width of each curtain). Thereby, each curtain is cut by users based on using requirements so as to match with a size of a window.

A conventional curtain cutting machine contains a base and a fixed cutting device arranged on an end of the base so that the fixed cutting device cuts a curtain having two symmetrical ends. For example, one of the two symmetrical ends of the curtain is cut, then the curtain is turned 180 degrees so as to cut its other end, thus cutting the curtain complicatedly and troublesomely.

To overcome above-mentioned problem, as shown inFIG. 1, a conventional curtain cutting machine has been developed. The conventional curtain cutting machine contains an elongated base91, a first fixed cutting device92A and a second fixed cutting device92B which are arranged on two ends of the base91respectively. The base91has two parallel guide rods911defined between the first fixed cutting device92A and the second fixed cutting device92B, and the two guide rods911have a first holder93A and a second holder93B which slide along the two guide rods911individually. The first fixed cutting device92A has a first measurement part94A disposed outside the first fixed cutting device92A, the second fixed cutting device92B has a second measurement part94B disposed outside the second fixed cutting device92B, and the base91further includes a first measuring rule95A and a second measuring rule95B.

In operation, the curtain is clamped by the first holder93A and the second holder93B so that when the curtain is moved to the first fixed cutting device92A, the first measurement part94A measures an end of the curtain which is cut, and the first holder93A and the second holder93B are fixed on the two guide rods911respectively so as to fix the curtain, then the first fixed cutting device92A cuts the end of the curtain. Thereafter, the first holder93A and the second holder93B are released and move toward the second fixed cutting device92B so that the second measuring rule95B measures a desired length of the curtain, and the first holder93A and the second holder93B are mounted on the two guide rods911individually so as to fix the curtain. Then, the other end of the curtain over the desired length is cut. In contrast, the end of the curtain close to the second fixed cutting device92B is cut, and the other end of the curtain proximate to the first fixed cutting device92A is cut, wherein the second measuring part94B measures the desired length of the curtain close to the second fixed cutting device92B, and the first measuring part95A measures the desired length of the curtain close to the first fixed cutting device92A.

As cutting the curtain, the curtain is clamped and is actuated by the first holder93A and the second holder93B so as to move to one of the two fixed cutting devices (such as the first fixed cutting device92A or the second fixed cutting device92B) and to be measured, and the first holder93A and the second holder93B are locked on the two guide rods911respectively so as to fix the curtain and to cut the end of the curtain. Thereafter, the first holder93A and the second holder93B are released so as to move toward the other of the two fixed cutting devices (such as the second fixed cutting device92B or the first fixed cutting device92A) and to be measured, then the first holder93A and the second holder93B are locked on the two guide rods911individually so as to fix the curtain. Thereafter, the other end of the curtain is cut. However, the curtain is cut by two fixed cutting devices (i.e., the first fixed cutting device92A and the second fixed cutting device92B) and is clamped by the first holder93A and the second holder93B. Furthermore, the first holder93A and the second holder93B are locked and released repeatedly, thus having high fabrication cost and inconvenient operation.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide an automatic curtain cutting machine which cuts two ends of a curtain automatically so as to avoid turning the curtain, thus cutting the curtain easily and quickly.

Another objective of the present invention is to provide an automatic curtain cutting machine which contains a cutting device moving on a base so as to cut by the two ends of the curtain, such that only the cutting device is required so as to simplify the automatic curtain cutting machine and to reduce fabrication cost.

To achieve above-mentioned objectives, an automatic curtain cutting machine provided by the present invention contains: a base, a support unit, a cutting device, a displacement device, and at least one clamp device.

The base axially extends and is configured to parallelly hold a curtain on the base, and the curtain moves on the base.

The support unit includes multiple support sets movably arranged on the base, and the support unit is configured to support the curtain.

The cutting device is mounted and moves on the base, and the cutting device includes a first space, a second space, and at least one cutter.

The first space is configured to pass through the curtain and connects with the second space so that each of the multiple support sets moves through the second space, and the at least one cutter is fixed outside the first space and vertically moves along a track of the curtain, wherein the track is a datum line so that an end of the curtain over the datum line is cut.

The displacement device is disposed on the cutting device and moves with the cutting device, and the displacement device is configured to move the multiple support sets which correspond to a moving track of the at least one cutter.

The at least one clamp device is configured to clamp the curtain so that the curtain is cut.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference toFIGS. 2-7, an automatic curtain cutting machine according to a preferred embodiment of the present invention comprises: a base10, a support unit20, a cutting device30, a displacement device40, at least one clamp device50, and a movable positioning device60.

The base10is elongated and axially extends, and the base10includes two slide rails11arranged between two ends of the base10respectively.

The support unit20includes multiple support sets21movably arranged on the base10, each of the multiple support sets21has at least one orifice211defined proximate to a bottom of each support set21, at least one part of the multiple support sets21is in an inverted L shape and has an accommodation groove212defined on a top part of the at least one support set21.

The cutting device30is mounted and moves on the two slide rails11of the base10, and the cutting device30includes a first space31, a second space32, two cutters33, a holding plate34, and a third space35. A bottom of the first space31flushes with a top of each support set21, the second space32is connected with the first space31so that each support set21moves through the second space32, and the two cutters33are fixed beside two sides of the first space31and move vertically along the base10so as to cut a workpiece. The holding plate34is arranged below the first space31and has a first moving mechanism341formed on a bottom thereof so as to actuate the holding plate34to lift and descend, wherein when the holding plate34is actuated by the first moving mechanism341to lift, a top of the holding plate34flushes with the accommodation groove212of the at least one part support set21.

The displacement device40is disposed on the cutting device30, and the displacement device40moves the support sets21corresponding to the two cutters33as the cutting device30moves. The displacement device40includes a second moving mechanism41, an actuation seat42driven by the second moving mechanism41so as to move along the base10, a movable drive rod43secured on the actuation seat42, a holder44configured to hold the multiple support sets21, and two springs45configured to push the multiple support sets21to move back toward original positions respectively.

The at least one clamp device50includes a first clamping part50A and at least one second clamping part50B (in this embodiment, the at least one clamp device50includes a first clamping part50A and two second clamping parts50B), wherein the first clamping part50A is fixed on one of the multiple support sets21of the support unit20, the first clamping part50A has two third moving mechanisms51A and two press elements52A driven by the two third moving mechanism51A to vertically move along the base10. When the cutting device30slides, it avoids moving through the first clamping part50A by way of the third space35. The two second clamping parts50B are arranged beside the first space31of the cutting device30so as to move, when the cutting device30moves. Each of the two second clamping parts50B has a fourth moving mechanism51B and an abutting plate52B driven by the fourth moving mechanism51B to move close to or away from the first space31.

The movable positioning device60is mounted on an end of the base10, and the movable positioning device60includes a fifth moving mechanism61and a fixing sheet62actuated by the fifth moving mechanism61so as to move on the base10.

Referring toFIGS. 8-13, as cutting the workpiece (i.e., a curtain70), the curtain70is placed on the accommodation groove212of the top part of the at least one support set21and is parallel to the base10so that the cutting device30pushes the curtain70to the movable positioning device60along the base10based on a desired cutting length, and the fixing sheet62of the movable positioning device60is driven by the fifth moving mechanism61to move along the base10so that the curtain70is positioned on the base10, and the two press elements52A of the first clamping part50A are respectively actuated by the two third moving mechanisms51A to vertically move along the base10so as to clamp the curtain70. Thereafter, the holding plate34of the cutting device30is driven by the first moving mechanism341to descend so that the cutting device60moves to a predetermined cut position along the two slide rails11based on the desired cutting length of the curtain70, wherein an end of the curtain70moves through the first space31of the cutting device30, and the second moving mechanism41of the displacement device40actuates the actuation seat42to move along the base10, wherein the movable drive rod43of the actuation seat42inserts into the at least one orifice211of the at least one support set21so as to move the support sets21extending out of the second space32toward the holder44, such that the two springs45on the holder44are pressed, and the holding plate34of the cutting device30is driven by the first moving mechanism341so as to lift and to support the curtain70. As shown inFIG. 14-16 or 17-19, the fourth moving mechanism51B of one of the two second clamping parts50B actuates the abutting plate52B to movably abut against the curtain70, and one of the two cutters33of the cutting device30moves along an axial track (i.e., a datum line) around the base10so as to cut the end of the curtain70over the datum line. After cutting the end of the curtain70, the cutting device30moves toward a predetermined position of the other end of the curtain70along the base10so that the fourth moving mechanism51B of the one second clamping part50B actuates the abutting plate52B to movably abut against the curtain70, the one cutter33of the cutting device30moves along the axial track of the base10so as to cut the other end of the curtain70, and the other end of the curtain70over the datum line of the base10is cut, thus cutting the curtain70.

Thereby, the automatic curtain cutting machine contains advantages as follows:

1. The automatic curtain cutting machine cuts the two ends of the curtain70automatically and accurately so as to avoid turning the curtain70, thus cutting the curtain70quickly and easily.

2. The two ends of the curtain70are cut by way of the cutting device30moving on the base10, such that only the cutting device30is required so as to simplify the automatic curtain cutting machine and to reduce fabrication cost.

While various embodiments in accordance with the present invention have been shown and described, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.