JPH0417356Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an attachment/detachment mechanism for a rotary processing cylinder in a rotary perforation and cutting device, and particularly relates to an attachment/detachment mechanism for a rotary processing cylinder that can be easily and reliably attached and detached.

[Prior Art] Continuous forms such as output forms for output devices such as computers are machined with perforations for cutting and folding each set.
This is installed perpendicular to the flow of continuous forms, and the perforation pitch (cut, length of the uncut part) varies depending on the paper type (paper thickness, paper quality), post-processing method, etc., and the corresponding number of cuts A blade is selected and processed, or a strip-shaped thin blade, which is the entire cutting part, is used to cut the material into a sheet.

When perforating and cutting continuous forms using a form rotary printing machine, etc., cylindrical rotary processing is performed by inserting and fixing a thin band-shaped perforation blade into a groove provided at a predetermined position on the circumferential surface of a rotary processing cylinder. The paper is passed between the cylinder and a cylindrical receiving cylinder placed opposite thereto, and perforations and cutting are performed at regular intervals by rotating the processing cylinder and the receiving cylinder.

However, there are many different sizes of forms, and generally the circumferential diameter of the processing cylinder is made to be an integral multiple of the top and bottom size of the form.

When making perforations and cutting with different top and bottom sizes, it is necessary to select and use a processing cylinder made with a circumference that is an integral multiple of the perforations and cuts.

In the conventional process cylinder assembly process, as shown in FIG. 4, the process cylinder to be used is placed on the main body of the printing press using a crane or the like, and the gears on the process cylinder and the gears on the receiver cylinder are engaged and set. Thereafter, with the processing cylinder pressed against one side of the machine frame, the processing cylinder is completely fixed with a set bolt. Such work cannot be performed unless the printing press is stopped, which is a factor that lengthens the assembly time.

[Purpose] In view of the above points, it is an object of the present invention to provide a rotary processing cylinder attachment/detachment mechanism that allows the processing cylinder to be easily and conveniently attached and detached when replacing the processing cylinder.

[Structure] In order to achieve the above-mentioned purpose, the attachment/detachment mechanism of the replaceable rotary machining cylinder for perforation and cutting of the present invention includes a groove provided in the direction of the cylindrical generatrix of the replaceable cylindrical rotary machining cylinder. In a rotary perforation and cutting device that sets a band-shaped thin blade and passes a workpiece medium between the belt-shaped thin blade and a workpiece cylinder disposed opposite thereto, and perforates and cuts the workpiece medium, the workpiece cylinder is held. A retractable piece is provided at the tip of a pair of telescoping arms installed on both sides of the machine frame to removably engage with pins protruding from the processing cylinder frame arranged at both ends of the rotary processing cylinder. be.

Hereinafter, the configuration of the present invention will be explained based on examples.

As shown in FIG. 1, a sewing machine barrel 1 (hereinafter referred to as the sewing machine barrel), which is a rotary processing barrel, has a groove provided at a predetermined position on the cylindrical outer peripheral surface in the direction of the cylinder generatrix.
A belt-shaped thin plate blade can be fixed there, and a sewing machine barrel frame 3, which is a processing barrel frame, is provided at both ends of the barrel 1. Retractable pins 8 are attached to this frame so as to protrude outward, and one side of the frame 3 is attached to the sewing machine barrel 1.
It runs through it and has a driving gear attached to its tip.

On the other hand, the frame 4 on the machine side in which the receiving barrel 2 is installed has a storage recess with a space slightly larger than the space in which the sewing machine barrel frame 3 is accommodated, and can receive the retractable pin 8 provided on the sewing machine barrel frame 3. An air cylinder 10 having a piston rod 10' forming an arm with a retractable piece 9 attached to the tip.
are attached to both sides of the fuselage frame 4. Here, the retractable piece guide 15 serves to keep the retractable piece 9 oriented in one direction. In addition, 12 is an eccentric metal, 13 is a receiving body upper and lower handle, 14
is the lock handle.

As shown in FIG. 2, the method of fixing the sewing machine barrel from above is as shown in FIG. ', and a fixing rectangular bar 6 is provided that straddles the upper part of the sewing machine body frame 3.
Give it and let it pass through this piece 5, 5'. A fixing screw 7 with a handle is screwed into this rectangular bar 6 at a location that aligns with the center of the sewing machine trunk frame 3.
The screw hole passes through this square bar 6, and the screw 7
When rotated and screwed in, it passes through this rectangular bar 6 and directly presses the sewing machine barrel frame 3, and this force can completely fix the sewing machine barrel 1. As shown in FIG. 2, one of the pieces 5' is made up of two pieces with a gap provided at the top so that the screw 7 can pass therethrough.

Next, the process of attaching and detaching the sewing machine barrel 1 will be explained. First, as shown in FIG. 3a, the rectangular bar 6
is completely released from above the accommodation recess of the sewing machine barrel 1, and the air cylinder 10 maintains its arm, that is, the piston rod 10', in an extended state. In this state, the sewing machine barrel 1 is lowered using a crane or the like so that the retracting pin 8 is dropped into the retracting block 9. At this time, the positional relationship between the sewing machine barrel 1 and the receiver barrel 2 is far apart, so even if the receiver barrel 2 is rotating, there is no danger that the respective gears will suddenly mesh.

Then, as shown in FIG. 3b, by retracting the rod 10' of the air cylinder 10, the sewing machine trunk frame 3 moves along the retraction guide 11.
The sewing machine body 1 is pulled toward one direction of the machine frame 4, and the frames are fixed in the pulling direction of the air cylinder at the place where they touch each other.

Furthermore, as shown in Fig. 3C, move the rectangular bar 6 so that it passes through both pieces 5 and 5', and finally tighten the fixing screw 7 as shown in Fig. 3D. The frame 3 is now fixed, and the fixation of the sewing machine barrel 1 is completed.

[Effects] According to the present invention, the sewing machine barrel can be replaced safely and easily. In particular, if there are two or more sewing machine processing units in the printing press, it is possible to change the sewing machine cylinder while using one unit, and the piston rod of the arm, that is, the air cylinder. Not only can the sewing machine barrel be switched with just a single action, but the sewing machine barrel can be fixed without using any tools, which has the advantage of completing the work in a short time.

[Brief explanation of the drawing]

Fig. 1 is an explanatory front view of the attaching/detaching mechanism of the rotary machining cylinder of the present invention, Fig. 2 is a detailed perspective view of the same, Figs. It is an explanatory front view of a mechanism. 1... Sewing machine barrel, 2... Receiving barrel, 3... Sewing machine barrel frame, 4... Machine frame, 8... Retracting pin, 9... Retracting piece, 10... Air cylinder,
10'...Piston rod.

Claims (1)

[Scope of utility model registration request] A strip-shaped thin blade is set in a groove provided in the direction of the cylindrical generatrix of a replaceable cylindrical rotary machining cylinder, and a workpiece medium is passed between this blade and the receiving cylinder installed oppositely, and perforations and In a rotary perforation and cutting device that performs cutting processing, a processing cylinder frame is provided at both ends of the rotary processing cylinder at the tips of a pair of telescopic arms installed on both sides of a machine frame that holds the receiving cylinder. A mechanism for attaching and detaching a rotary processing cylinder, characterized in that a retractable piece is provided that detachably engages with a pin protruding from the body.