RU2598678C2 - Device for thermal moulding of articles - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: invention relates to a device for thermal moulding of articles, particularly articles from thermoformed film. Device includes a mechanism for moving thermoformed film, a furnace for heating film placed above a displacement mechanism, upper and lower moulds arranged in die, as well as cut-out mechanism. Lower mould is equipped in lower part with cutters fixed longitudinally and parallel to each other. Cutters are located with even spacing and are installed vertically. After die there is a cut-out mechanism consisting of a clamping device, motor and drive. Clamping device is a frame, in lower part of which there are spring-loaded rollers, and in centre of frame there is a servo pressure device.

EFFECT: article extracted from matrix is fully processed and monolithic moulds can be obtained on same device.

4 cl, 4 dwg

Description

The subject of the invention is a device for the thermoforming of products, in particular products from thermoformed film.

From the description of the invention to US Pat. No. 4,464,329, a thermoforming device is known in which plates from a conveyor pass between an upper die and a lower die placed in a press, and then they are compressed when the press is closed. The product is molded in the press, and then it is pulled out from the bottom die and sent for further processing.

A device is also known for extracting an article from a thermally molded mold and processing the article. A device of this type is disclosed in the description of the Polish patent No. 183311, which includes a thermoforming device and a processing unit, while a removable plate is located between the device and the unit, which is a component of the processing unit.

The aim of this invention is to provide a device in which, after extraction from the matrix, the product is fully processed.

Proposed according to the invention, the device includes a mechanism for moving the thermoformed film, a film heating furnace placed above it, an upper and lower mold mounted in a stamp, and a cutting mechanism. The lower form in the lower part is equipped with cutters mounted in the longitudinal direction parallel to each other. The cutters are spaced evenly and placed vertically. Behind the stamp there is a split mechanism, which consists of a clamping device, an air motor and a drive. The clamping device is a frame, which has spring-loaded rollers in the lower part, and a servomotor of the clamping device is fixed in the center of the frame. The frame is predominantly removable. The distance between the rollers is equal to the distance between the cutters fixed in the lower form. The frame is mounted on hinges that are placed on the holders. At the other end, the holders end with clips. The clips move along the guide along the lower mold. After the molding process, when the upper die rises, the servomotor moves the presser to the front of the lower mold. Then the rollers are lowered on the cutter, and the air motor moves the clamping device beyond the lower mold. At this time, the servomotor of the pressing device presses the rollers against the cutters, and the cutters cut the formed thermoformed film into longitudinal elements.

The use of a cutting mechanism in a device for thermal molding of products allows obtaining integral forms on the same device in the form of a finished product.

In more detail, the essence of the subject matter of the invention is explained using the example shown in the drawings, in which:

FIG. 1 is a front view of a device for thermally molding products;

FIG. 2 - general view of the clamping device;

FIG. 3 is a front view of a pressure device;

FIG. 4 is a side view of the pressure device.

Example. A device for thermoforming products includes a movement mechanism 1 of a thermoformed film 2, a heating furnace 3 of a film 2, an upper mold 4 and a lower mold 5 placed in the die 6 above the moving mechanism 1, and also a split mechanism 7. The lower mold 5 is equipped at the bottom fixed longitudinally and parallel to each other by the cutters 8. The cutters 8 are arranged with a uniform pitch and are installed vertically. After the die 6, there is a cutting mechanism 7, consisting of a pressing device 9, an air motor 10 and a drive 11. The pressing device 9 is a frame 12 containing spring-loaded rollers 13 in the lower part, and a servomotor 14 of the pressing device is fixed in the center of the frame 12. Frame 12 is made mainly replaceable. The distance between the rollers 13 is equal to the distance between the cutters 8, fixed in the lower form 5. The frame 12 is mounted on hinges 15, which are placed in the holders 16. The holders 16 at the other end end with clips 17. The clips 17 are moved along the guide 18 along the lower form 5. After molding process, when the upper stamp 4 rises, the air motor 10 moves the pressure device 9 to the front of the lower mold 5. Then the rollers 13 are lowered onto the cutters 8, and the air motor 10 moves the pressure device 9 for the lower mold 5. This while the servomotor 14 of the pressing device presses the rollers 13 against the cutters 8, and the cutters 8 cut the molded thermoformed film 2 into longitudinal elements.

Claims (4)

1. A device for thermoforming products, including a film moving mechanism, a film heating furnace located above it, a pressing device, lower and upper forms placed in the die, behind which there is a cutting mechanism, while the lower form is equipped with cutters fixed longitudinally in the lower part and parallel to each other, arranged with uniform pitch and mounted vertically, characterized in that the clamping device is made in the form of a frame that is mounted on hinges, in the lower part of which spring-loaded rollers are arranged, and a clamping motor is located in the center of the frame. 2. The device according to p. 1, characterized in that the frame is replaceable. 3. The device according to p. 1, characterized in that the hinges are placed in the holders, and the holders at the other end end with clips. 4. The device according to p. 3, characterized in that the clips move along the guide along the lower form.

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