JPH03264290A - Device for cutting rod material into pieces - Google Patents

Abstract

PURPOSE: To provide a geometically accurate cut surface for a wide application by enabling a cutter additionally provided rearward in the rotation direction to a retaining element to move radially through a cam-connector transmission. CONSTITUTION: During rotation of a receiption ring 1 cam roller s14, 15 mounted to cam levers 12, 13 roll on cam loci of control cams 16, 17 to transmit rotational movement of a shaft 11 to a cutter holder 6 via a lever 9 and a pin 8 to thereby allow a cutter 5 to perform rise and fall movement extending in parallel with retaining elements 3, 4 across a connection member 7. When the elements 3, 4 opened with the rotation of the ring 1 reaches reception positions, they perform a relative movement in the direction opposite to the rotational direction of the ring 1. During the relative movement, the outside retaining element 3 is closed to fasten and fix a continuously moving strand. Simultaneously, the cutter 5 passes through the strand and performs a perpendicular movement to a strand placing base, and the strand is cut into pieces B.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for cutting into individual pieces a bar of plastically deformable bonbon material that is conveyed at a constant speed, the device being arranged in a cutter holder. The present invention relates to a device having a cutter and a delivery mechanism for the individual pieces, in which the cutter is moved and held perpendicularly to the bar via a control element.

[Conventional technology]

Such devices are already known and are described, for example, in German Democratic Republic Patent No. 206,067. In this case, stripper drums are supported on each side of the bar in the area of the cutting point, which are driven in the transport direction of the bar during the cutting process.

These drums are formed open on one side and have at least one transversely extending slit-like opening in contact with the bar with their outer circumferential surface and for a cutter provided at the free end of the connector. . The cutters move in opposite directions across the slit-like opening of the stripper drum and the moving bar until they overlap slightly in the middle.

Furthermore, it is known from German Patent Application No. 3,216,770 that a bar is likewise conveyed continuously and cut into individual pieces by means of a rotary cutter. The cutter has two segments that perform the cutting action and also fulfill the conveying function. The gap between the cutter segments allows the bar to be fed until the cut is made.

Also, in German Democratic Republic Patent No. 258173,
A method is described for cutting a bar of plastically deformable bonbon material into individual pieces. In that case, the rotating cutter holder plate is arranged obliquely with respect to the bar conveyance direction. A cutter holder is swingably supported on this cutter holder plate, and a cutter is attached to this cutter holder. The fact that the cutter holder plate is arranged obliquely to the bar transport groove and that during the cutting process a lever attached to the blade holder cooperates with a cam roller that engages the cam track of the stationary grooved cam so that the cutter is Individual pieces are cut from the bar by being swung in the material transport direction.

In the case of the above-mentioned method, there is a problem in that the bar is blocked or pulled due to the speed difference between the bar and the cutter at the time of cutting, and as a result, a precise cut cannot be made.

The method using a stationary cutter as disclosed in DE 32 16 770 is also applicable only to low working speeds and can only cut short pieces.

[Problem to be solved by the invention]

The aim of the invention is to obtain a tight and geometrically precise cutting surface and to have a wide range of applications. Furthermore, the aim is to eliminate material losses and reduce mechanical construction costs.

[Means to solve the problem]

According to the invention, this object is achieved by providing a device of the type mentioned at the outset, in which the ejection mechanism is formed as a continuously rotating receiving wheel with controllable holding elements, each holding element having a cutter at the rear in the direction of rotation. This is achieved by configuring the cutter to be attached and to be movable in the radial direction via a cam-coupler transmission.

The cutter holder is pivotably connected to the inner holding element of the receiving ring via a coupling and has a pin on the drive side, which pin is connected to a lever mounted on the drive shaft which can be rotated in the transmission housing. , a transmission controlling said cutter is supported concentrically with respect to a transmission controlling the holding element, and on the axis of the transmission housing a cam lever with cam rollers is arranged, the cam rollers being connected to a stationary control cam. is in contact with the cam orbit.

〔Example〕

The present invention will be described in detail below with reference to embodiments shown in the drawings.

The device according to the invention has a receiving ring 1 which is rotatably supported on a shaft 2 and around which a plurality of outer holding elements 3 and inner holding elements 4 are arranged in a known manner. ing. A cutter 5 is assigned to each holding element 3.4. The cutter holder 6 is connected to the inner holding element 4 via a connector 7 . The cutter holder 6 has a pin 8 on the drive side. This pin 8 is a shaft 1 rotatably supported in a transmission housing 10.
1 via a lever 9. A cam lever 12.13 is mounted on its shaft 11, the cam rollers 14, 15 of which cooperate with the cam track of a stationary control cam 16.17.

[Effect]

When the receiving ring 1 is rotated about the shaft 2 in the feeding direction of the bar M, the outer holding element 3 and the inner holding element 4 are rotated.
have a relative movement and the outer holding element 3 additionally performs an opening and closing movement. This movement of the holding elements 3, 4 is effected by a known transmission, not shown. Due to the fact that the cutter holder 6 is connected to the inner holding element 4 via the coupling 7, the cutter holder 6 and thus the cutter 5 undergo a relative movement. The cutting movement of the cutter 5 is effected by a transmission arranged in a transmission housing 10. When the receiving ring 1 rotates, the cam roller 14°15 attached to the cam lever 12.13 is moved by the control cam 16.17.
transmits the rotational movement of the shaft 11 via the lever 9 and the pin 8 to the cutter holder 6 and thus to the cutter 5, across the coupling 7 to the holding element 3. The robot performs an upward and downward movement extending parallel to the object. When the holding elements 3, 4 released by rotation of the receiving ring 1 reach the receiving point U, these holding elements 3, 4 move relative to each other in a known manner in a direction opposite to the direction of rotation of the receiving ring 1. During this relative movement the outer retaining element 3 closes;
Tightening fixes the continuously moving bar M. At the same time, the cutter 5 performs a vertical movement across the bar M to the bar mounting table S, and cuts the bonbon B from the bar M. The bar mounting table S may be fixed or movable within the cutting range.

After the cutting has taken place and the bonbon B has been transported by continued rotation of the receiving wheel 1 to a discharge point (not shown), the cutter 5 is returned to its starting position.

The process is repeated in the same way.

〔Effect of the invention〕

By designing the discharge mechanism as a receiving wheel equipped with a controllable holding element, to which the cutter is attached directly, the individual speeds of the bar and the receiving wheel can be precisely synchronized with each other.

Since the cutter rests directly on the holding element and is therefore guided together with it, any relative movement between the cutter and the bar is eliminated, and the cutter neatly separates the individual pieces in a constant state. Can be cut. Since the transport to the packaging location takes place by means of a receiving wheel, no intermediate transport elements to the packaging location are required. Since the receiving wheel can be driven at varying speeds during rotation, the length of the pieces can be varied within a limited range.

[Brief explanation of drawings]

FIG. 1 is a front view of the device according to the present invention, and FIG. 2 is a sectional view taken along line A--A in FIG. DESCRIPTION OF SYMBOLS 1... Receiving ring, 3, 4... Holding element, 5... Cutter, 6... Cutter holder, 7... Connector, 8
...Pin, 9...Lever, 10...Transmission device housing, 11...Shaft, 12.13...Cam lever,
14.15...Cam roller, 16.17...Control cam, B...Bonbon.

Claims (1)

[Claims] 1. A device for cutting a plastically deformable bar of bonbon material into individual pieces that is conveyed at a constant speed, comprising a cutter placed in a cutter holder and a conveyor for the individual pieces. a mechanism, in which the cutter is moved and held perpendicularly to the bar via a control element, the ejection mechanism comprising a controllable holding element (3, 4).
formed as a continuously rotating receiving ring (1) with
Each holding element (3, 4) is provided with a cutter (5) on the rear side in the direction of rotation, which cutter (5) can be moved in the radial direction via a cam-coupler transmission. A device that cuts into individual pieces. 2. A cutter holder (6) is pivotably connected to the inner holding element (4) of the receiving ring (1) via a coupling (7) and has a pin (8) on the drive side, which pin (8) is
connected to a lever (9) mounted on a drive shaft (11) rotatable within the transmission housing (10);
A transmission controlling said cutter (5) is connected to a holding element (3).
, 4) concentrically supported with respect to the transmission controlling the
Cam levers (12, 13) with cam rollers (14, 15) are arranged on the shaft (11) of the transmission housing (10), which cam rollers (14, 15) are connected to the cams of the stationary control cams (16, 17). 2. Device according to claim 1, characterized in that it is tangential to the track.