JPH0325997Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cutting or drawing device that can cut cardboard into a required shape or draw a drawing using a coronoid.

An object of the present invention is to provide an apparatus that can smoothly perform cutting of complicated shapes, which has been difficult in the past. Another object of the present invention is to provide a device having an axially adjustable pressure force and capable of appropriately cutting cardboard and the like.

However, the present invention rotates by a direction control signal,
An angle control motor that rotates a spindle with a cutter or coronoid at a required angle, which has a pressure force that can be adjusted in the axial direction and can appropriately cut cardboard, etc., and an up-and-down control that moves it up and down toward the cutting or drawing surface. A machine body equipped with a motor is fixed to a moving body that moves in the X-axis and Y-axis directions on a drawing board, and the spindle is raised and lowered when controlling the direction of the cutter or coronoid according to the moving direction of the moving body. This is a cutting or drawing device for an automatic drawing machine, which is characterized by the following.

Next, an example in which the cutting or drawing device in an automatic drawing machine according to the present invention is applied to cutting will be described with reference to the drawings.

In the figure, 1 is the main body of the device, and the Y rail 3 is placed horizontally on the drawing board 2 as shown in Fig. 6.
It is attached to a moving body 4 that moves along. The Y rail 3 is movably attached at one end along the X rail 5, so that the movable body 4 can move in the X-axis direction and the Y-axis direction.

As shown in the block diagram of FIG. 7, an X-axis pulse P1 controls the movement of the Y rail 3 in the X-axis direction, and a Y-axis pulse P2 controls the movement of the moving body 4 in the Y-axis direction.
The moving direction angle of the moving body 4 is calculated by the calculator 10, and the direction control signal and vertical control signal of the spindle 6 are outputted based on the direction angle. Further, the operations of the direction control pulse operation motor 50 and the vertical control motor 24 of the cutter spindle 6 are controlled according to the cutter direction control mechanism 8 and the cutter vertical control mechanism 9, as will be described later.

The structure of the main parts of the present invention will be explained with reference to FIGS. 1 to 7. The spindle 6 is hollow and stands upright in the center of the main body 1, and has a double-edged razor-like cutter 11 attached to its lower end. (In addition, a coronoid may be attached instead of the cutter.) The cutter 11 is tightened by the tapered tightening ring 12, and the upper end is inserted into the hollow spindle 6 and fixed with four set screws 13, and the upper end is Bring the needle pin 14 into contact. Tighten ring 1 with presser nuts 15 and 15'.
Receive and pay 2. Furthermore, if the cutter edge loses its sharpness, remove the spindle 6 and rotate it 180 degrees.
The cutting edge of the double-edged razor-like cutter can be replaced, and the remaining half can be used for its sharpness. The non-tubular upper end of the spindle 6 forms a flat peripheral surface 6' along the axial direction, and as shown in FIG.
It supports vertically movable and rotatable. The gear 17, which is integrated with the three equally spaced bearings 16, is connected to the gear 21 of the pulse-operated motor 50 for direction control via the gear 18 and the large gear 20 gears 42 and 43 of the shaft 19, and the gear 17 is connected to the slit for origin detection. 22 and a gear 23 integrated therewith.

24 is a motor for vertically moving the spindle, and motor shaft 2
A planar cam 26' is attached to 7, and a trochanter 29 provided on the vertical movement guide rod 28 contacts the cam surface of the planar cam, supporting the spindle 6 rotatably and movably up and down via a connecting piece 30. Vertical movement guide rod 28
The connected spindle 6 is moved up and down. 2
Reference numeral 5' denotes a microswitch that detects that the spindle is turned upward, and the microswitch 25' constitutes the cutter direction control mechanism 8 together with a planar cam 26', and the planar cam 26' controls the guide rod 2.
8 is raised and the tip of the spindle is turned on at a raised position away from the cutting surface or drawing surface,
In response to this upward detection of the spindle, the direction control motor 50 is operated, and the spindle direction is controlled based on the spindle direction control signal output from the calculator 10. Further, the motor shaft 27 has a cam formed on its circumferential surface with a recess that turns off the micro switch 25 for detecting the downward direction of the spindle when the spindle 6 descends and the tip of the spindle comes into contact with the cutting surface or the drawing surface. 26 are integrally provided. The cam 26 and the micro switch 25 constitute a cutter vertical control mechanism 9, which operates the vertical control motor 24 in response to the vertical control signal from the calculator 10, and in response to the downward detection of the spindle by the downward detection micro switch 25. to stop the operation of the vertical control motor.

However, spindle 6 is a bearing that rotates vertically, and 31 is a bearing that can rotate vertically and horizontally, so in normal usage, spindle 6 is not removed, but the purpose of the spindle used for cutting this time requires spindle replacement. So I pull the spindle upwards. bearing 31
steel ball 3 from the moment the spindle is removed.
2 becomes free, so it falls down. Next, if you insert the spindle in a fallen state, the spindle will no longer insert from the moment it touches the steel ball 32.
For this reason, a spring 34 is built in to give the steel ball 32 and its ball retainer 33 the force to float due to their own weight, and when the spindle is not inserted, the steel ball 32 is at the top due to the force of the spring 34, which is the state when the spindle is inserted. is in the same state as when the spindle was removed.

Also, the inclusion of this spring 34 helps to reduce the weight of the spindle. Reference numeral 35 denotes a thrust bearing, which is provided in the connecting piece 36 and the pressure spring 37', respectively, in order to provide smooth rotation to the spindle while having a pressure force in the axial direction. 37 is an adjustment nut for the pressure spring 37', 38 is a parallel sliding groove, and by using the guide pin 39, it is possible to apply rotation to the vertically moving spindle in addition to the three-distributed bearing (see Fig. 5). . Reference numeral 40 denotes a mounting plate for the guide pin 39, which is fixed to the spindle with screws 41.

Since the present invention has the structure described above, when changing the direction of the cutter or coracoid according to the direction of movement, the spindle is moved up and down,
Since the direction control motor is activated to change the direction when the tip of the spindle is in a raised position away from the cutting surface or the drawing surface, the cutting surface is not distorted by a cutter or the like when changing direction, and the cutting surface can be cut into any shape. In particular, in this invention, the spindle is accurately supported by three equally spaced bearings,
Furthermore, the spindle can be smoothly moved up and down by two cams fixed to one shaft.

[Brief explanation of the drawing]

The drawings show an embodiment of the film cutting or drawing device in an automatic drawing machine according to the present invention, in which Fig. 1 is a vertical sectional front view, Fig. 2 is a plan view,
Fig. 3 is a partial longitudinal side view, Fig. 4 is a vertical sectional front view of the cutter section, Fig. 5 is a partial perspective view showing another embodiment, and Fig. 6 is an automatic drawing machine using the device of the present invention. FIG. 7 is a plan view showing the state in which the device is installed and used, and FIG. 7 is a block diagram. 1... Main body, 2... Board, 3... Y rail, 4...
...moving object, 5...X rail, 6... spindle,
6'...Flat peripheral surface, 7...Vertical control motor, 11
...Cutter, 16...3 equal bearings, 1
6'...Roller, 25...Micro switch for downward detection, 26...Cam, 26'...Plane cam.

Claims (1)

[Scope of utility model registration request] A Y rail mounted movably along the X rail on a board, an X-axis pulse for controlling movement of the Y rail in the X-axis direction, a moving body mounted movably along the Y rail, and the moving body Y
It is provided with a Y-axis pulse for controlling movement in the axial direction, a cutter for cutting or a coronoid for drawing at the tip, and is erected with a pressurizing force that can be adjusted in the axial direction on the main body attached to the movable body. a spindle, and three rollers in contact with three flat circumferential surfaces formed on a non-tubular upper end of the spindle,
three equally spaced bearings that support the spindle so that it can move vertically and rotatably; a direction control motor for the spindle that is connected to the three equally spaced bearings via a transmission mechanism; and a motor that can freely rotate and move the spindle up and down. a vertical movement guide rod supported by the vertical movement guide rod; a vertical control motor for the spindle, the motor shaft having a planar cam in contact with a trochanter provided on the vertical movement guide rod to raise and lower the spindle with respect to a cutting surface or a drawing surface; a calculator that calculates a moving direction angle of a moving body from an X-axis pulse and a Y-axis pulse and outputs a spindle direction control signal and a vertical control signal based on the direction angle; and a spindle that turns on when the spindle is in a raised position. A cutter direction control mechanism includes a micro switch for detecting an upward direction, and operates the direction control motor in response to the upward detection of the spindle by the switch, and controls the direction of the spindle based on the direction control signal; It consists of a micro switch for detecting the downward direction of the spindle, which turns off when it comes into contact with the drawing, and operates the vertical control motor in accordance with the vertical control signal, and also operates the vertical control motor in response to the downward detection of the spindle by the downward detection micro switch. 1. A cutting or drawing device for an automatic drawing machine, comprising a cutter vertical control mechanism for stopping the operation of a control motor.