CS253959B1 - Device for closing the container neck by forming - Google Patents

Abstract

The device for closing the neck of a container by forming consists of at least three forming organs formed by forming discs, which are symmetrically placed in carriers, which are mounted in guides located in the upper plate and the lower plate, in which the rotating ring with wedges is mounted. Sliding members are mounted on the inner side of the rotating ring. The rotating ring is provided on the outer side with a toothed rack, the toothing of which is in mesh with the toothing of the pinion for controlling the rotating ring. The upper plate contains bearings in which the tamping plate and the calibration tool are rotatably mounted. The device for closing the neck of a container by forming is usable in mechanical engineering.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention

To date, a device according to European Patent Specification No. 17 660 is known in the forming field, which consists of a support plate, carriers with forming bodies and a rotating ring with wedges. A linear hydraulic system is used to drive the ring. A disadvantage of this device is that the rotating ring is not directly connected to the forming element and switches and pressure medium are used to transmit the pulse, which makes the equipment more expensive and can cause partial disruption of the steps of the forming elements. When forming with this device, first the pressing and then the turning of the molded element is caused, which results in a more lengthy technological process or delays in it. Said device also does not provide amplification of the wall above _{the T} PRODUCT DELIVERY.

These drawbacks are overcome by a device for closing the neck of a container by means of a mold comprising at least three molding members symmetrically disposed in supports which are housed in guides located in the upper plate and the lower plate in which the rotating wedge ring is accommodated according to the invention. It consists in that the forming bodies form forming discs and sliding members are fixed on the inside of the rotary ring, the rotary ring being provided with a toothed rack on the outside, the toothing of which is in contact with the pinion gear for operating the rotary ring and in the upper plate. there are bearings in which the swaging plate and the calibration mandrel are rotatably mounted.

The higher effect of the device for closing the neck of a container by the molding according to the invention is to ensure a continuous molding process.

- 2 su and in allowing the wall of the product to be reinforced. The device according to the invention is also simple in construction, less malfunctioning and is manufactured with low production costs.

BRIEF DESCRIPTION OF THE DRAWINGS The invention and its effects are explained in more detail in the description of an embodiment according to the drawings, wherein FIG. 1 is a cross-sectional side view and FIG.

The container blank 1 is clamped in a blank (not shown) and rotates with it about its axis. At least three molding discs 7 are pressed from the side to the container blank. Each molding disc 7 is supported in carriers 6 on two bearings 8. The carriers 6 are supported in two guides 15 through which they are guided in the upper plate 9 and the lower plate 10. Sliding members which touch the wedges 4 are longer attached to the carriers 6. The wedges 4 are fixed on the inner side of the rotary ring 2 _f on the outer side, the toothed rack 12 is fixed.

2. The upper plate 9 and the lower plate 10 are provided with circular guide grooves 5 for guiding the ring 2 and grooves 14 for guiding the carriers 6. The upper plate j) and the lower plate 10 are screwed together by at least three screws 15 which are simultaneously shafts for supporting rollers 11 which are rotatably supported thereon. On each screw. 15, there are at least two rollers 11. In the upper plate 9, bearings 17, 18 are also mounted, in which a swaging plate 16 with a calibration mandrel 19 is rotatably mounted.

The container blank 1 is mounted in a non-drawn fixture and rotates about its own axis. Carriers 6 with shaped forming discs 7 are pushed to the side. They are brought into engagement by means of wedges 4, which are fixed on a rotating ring 2, which rests on a set of pulleys 11 and is driven by a pinion 20 over a rack 12. the discs 7, by contacting the rotating workpiece 1, spin and begin to form the container. The upper edge of the vessel is first bent and then pressed against the calibration mandrel 19 and the final shape of the vessel is formed by the forming forming discs 7. In the axial direction, the flow of materials is braked by the ram plate 16, resulting in a desired increase in the wall thickness of the container neck. After closing the container, the rotating ring 2 with the wedges 4 starts to rotate in the opposite direction. As a result, the carriers 6 with the shaped forming disks 7 begin to move from the center to the edge of the device. The sealed vessel is released from the formulation and the forming process is complete.

The device for closing the neck of a container by forming according to the invention is usable in mechanical engineering.

Claims (1)

BACKGROUND OF THE INVENTION An apparatus for forming a neck of a container by a molding, comprising at least three molding members symmetrically disposed in carriers supported in guides disposed in an upper plate and a lower plate receiving a rotatable ring with wedges, characterized in that the members form forming discs (7) and sliding members (5) are fixed on the inner side of the rotary ring (2), the rotary ring (2) being provided on the outer side with a toothed ridge (12) whose toothing is in contact with the pinion gear (20) for the control of the rotary ring (2) and in the upper plate (9) are located bearings (17, 18) in which the swaging plate (16) and the calibration mandrel (19) are rotatably mounted.