RU56991U1 - DOWNLOADING DEVICE FOR DOWNLOADING IN THE FURNACE OF SMALL PARTS - Google Patents

Abstract

The application describes a loading device for loading small parts (52) into the furnace (12), having a feeding bottom (20), which is at least partially enclosed in a casing (18) and which is inclined to the horizontal at an angle (α) of a maximum of about 20 °, input (22) and output (24), at least one first and one second shutters (28, 30) for separating the first chamber (32) inside the casing (18) respectively from the previous second chamber (34) and from the subsequent the third chamber (36), which is preferably configured to be hermetically connected to the boot at the hole (16) of the furnace (12), a vibrating actuator (38), providing movement of small parts (52) to the output (24) of the loading device, and a feeder (46) for supplying small parts (52) to the input (22) of the loading device horizontal direction or slightly tilted to horizontal direction. (Fig.)

Description

The present utility model relates to a loading device for loading small parts into the furnace, having a feeding bottom, which is at least partially enclosed in a casing and which is connected to the loading opening of the furnace.

From DE 9108520 U1, a loading device for a furnace designed for heat treatment of small parts is already known. In such a loading device there is a vibratory chute connected to the inlet of the furnace. Small parts can be fed to the vibratory chute through a lock chamber, which is mounted on a dynamometer, and small parts into which are fed from above through the shaft with their free fall.

This known device is suitable for loading small parts into the furnace with the possibility of simultaneously weighing the amount loaded into the furnace. However, the disadvantage of such a known loading device is that small parts are free when they are loaded into the lock chamber through the shaft

fall from a sufficiently high height, which determines the possibility of damage, since they have not yet been hardened.

Based on the foregoing, the present utility model was based on the task of developing an improved loading device for loading small parts into the furnace, which would almost completely eliminate the possibility of damage to them. In addition, such a loading device should provide the most reliable loading of small parts into the furnace and have a relatively simple and inexpensive design.

This problem is solved by using a loading device for loading small parts into the furnace, having a feeding bottom, which is at least partially enclosed in a casing and which is inclined to the horizontal at an angle of at most about 20 °, at least one inlet and outlet and one second shutters for separating the first chamber inside the casing, respectively, from the previous second chamber and from the subsequent third chamber, which is preferably made with the possibility of hermetically connecting to the loading hole p leech, vibrodrive, providing movement of small parts to the output of the loading device, and a feeder for feeding small parts to the input of the loading device in the horizontal direction or a direction slightly inclined to the horizontal.

In accordance with this, it is possible to completely solve the problem underlying the development of this utility model.

The proposed solution provides the ability to feed small parts into the furnace under the influence of vibration, while due to the horizontal or only slightly inclined to the horizontal position of the feeding bottom and due to the supply of small parts to the input of the loading device in the horizontal direction or slightly inclined to the horizontal direction, it is possible to avoid the free fall of small parts . As a result, damage to the workpieces in the not yet hardened state is prevented. In addition, the vibrator provides reliable supply of small parts to the furnace.

In one of the preferred embodiments of the proposed boot device, the angle of inclination of its supply bottom is within

from 0 ° inclusive to 15 ° inclusive. In this case, the angle of inclination of the supply bottom is preferably chosen at such a value that small parts in the absence of vibration do not slide down the supply bottom, however, only a slight vibration is required to bring the supply bottom into motion. Thus, it is possible to avoid the free fall of small parts and ensure their supply to the furnace in a gentle mode.

The gates of the proposed boot device is preferably performed mainly in the form of tight shutters. In this case, the loading device can be used as a lock chamber, allowing to minimize the amount of ambient air entering the atmosphere prevailing in the furnace.

In another preferred embodiment of the proposed loading device, the casing has an elongated part on its output side, which is adapted to be introduced into the furnace through its loading opening. This makes it possible to supply small parts under the influence of vibration up to the subsequent conveyor located inside the furnace.

In a further preferred embodiment of the inventive loading device for sealing the casing with respect to the loading opening of the furnace, an elastic seal is provided. The presence of such a seal provides the possibility of a gas-tight, respectively hermetic connection of the loading device to the furnace and, at the same time, the possibility of activating a vibratory drive to move small parts up to the conveyor located inside the furnace.

In a preferred embodiment, the vibrator provides the movement of small parts under the action of vibration from the receiving tank along the supply bottom to the conveyor inside the furnace. This ensures the effective use of the vibrator to move small parts throughout the entire section from the receiving tank to the subsequent conveyor located inside the furnace.

It is obvious that the distinguishing features of the proposed utility model discussed above and in the following description may

be used not only in their combination indicated in each particular case, but also in other combinations or even separately.

Other distinctive features and advantages of the utility model are discussed in more detail below on the example of one of the preferred options for its implementation with reference to the accompanying drawing.

The only drawing attached to the description is very simplified in longitudinal section shows the proposed loading device installed near the loading opening of the corresponding furnace.

The proposed loading device for supplying small parts to the furnace 12 installed behind it, simplified shown in the drawing, is indicated by the general position 10.

The furnace 12 may be, for example, a conveyor oven with a conveyor belt 14 for moving parts processed therein.

The furnace 12 has a loading (inlet) opening 16 to which the loading device 10 is hermetically connected.

The loading device 10 has a feeding bottom 20, which is partially enclosed in a casing 18. The casing 18 is made of several parts and has a first, or main, chamber 32 sealed from the previous second chamber 34 by a shutter 28, made in the form of a flap. The next third chamber 36 adjoins the first chamber 32, which is also hermetically separated from the first chamber 32 by a shutter 30 made in the form of a flap. The third chamber 36 terminates in an extension of its extension 26, which passes through the inlet 16 of the furnace into it and the outlet 24 of which is located in the furnace 12 directly above its belt conveyor 14, on which small parts moving in the direction indicated by arrow 15 can therefore be poured feed direction 20.

A feed bottom 20 made in several parts is inclined to the horizontal at an angle that varies from the inlet 22, where it is about 15 °, to a smaller value inside the first chamber 32, equal to about 10 °, and then to an even smaller length along the elongated parts 26 up to the working space 13 of the furnace. In this case, the angle

the inclination of the supply bottom 20 in the elongated portion 26 is only about 5 ° or less.

To ensure reliable, despite the small inclination of the feeding bottom 20, the supply of small parts along the entire length of the loading device from its inlet 22 up to the belt conveyor 14 located in the furnace 12, only the conditionally shown vibratory drive is shown in the drawing, which is indicated by 38 and which allows the entire casing 18 to be communicated vibration, providing in this way the movement of small parts on the supply bottom 20 up to the exit 24 of the boot device. To this end, the casing 18 from the side of its inlet end is supported by a supporting structure through an elastic support spacer 40, and near the loading opening 16 of the furnace 12 is connected by spring elements 42 with supports located below. This design allows you to communicate the vibration from the vibrator 38 to the entire casing 18 and provides a reliable supply of small parts from the input 22 of the boot device until its output 24.

To maintain tightness at the junction of the casing 18 with the furnace 12, despite bringing the casing 18 into vibration, it is equipped with an elastic sealing element 44, which is located outside near the elongated part 26 passing through the loading opening 16 of the furnace.

For feeding small parts to the loading device 10, a feeder, indicated by the general position 46, is used, which allows overloading the small parts 52 taken from it into the receiving containers 56 from the supply container 50 and moving them to the input 22 of the loading device 10.

To do this, small parts are selected from the supply tank 50 through the opening blocked by the movable shutter 54, from where they fall into the receiving tank 56 'located below. In this case, the receiving tank 56 is arranged to be moved by the corresponding drive in the horizontal direction indicated by arrow 61, and also to be moved by the corresponding drive or lifting mechanism 48 in the vertical direction indicated by arrow 49.

Thus, for supplying small parts to the loading device, the receiving container can first be brought to the position indicated by 56 'immediately below the consuming container 50, and then through the designated

56, raise the intermediate position to the position indicated by 56 ”, in which small parts 52 are unloaded from it directly at the inlet 22 of the loading device.

To this end, the receiving container with its side facing the inlet 22 of the loading device is closed by a shutter 58. This is a flap, which can be turned upward in the direction indicated by the bidirectional arrow 59 to unload small parts from the receiving container at the inlet 22 of the loading device 10.

After that, by controlling the shutters 28, 30, made in the form of sealed hinged dampers (rotated in the directions indicated by arrows 24 and 31), small parts can be moved from the inlet 22 of the loading device to its outlet, for which the hinged shutter 28 is first opened, and small parts come from the second chamber 34 into the first or main chamber 32. The second flap 30 is closed. After moving the small parts into the first chamber 32, the first flap 28 is closed again, and the second flap 30 is then opened. After that, small parts are moved along the supply bottom 20 due to the vibration transmitted to it from the vibrating drive 38 to the output 24 of the loading device, falling out of it in the direction indicated by arrow 15 onto the conveyor belt 14 in the furnace 12. After emptying the first chamber 32, the second hinged shutter 30 closes again after which the first chamber 32 can be filled with the next portion of small parts.

The loading device described above allows you to load small parts into the furnace 12 in a gentle mode, while both shutters 28, 30, respectively, both shutters reliably isolate the working space of the furnace from the atmosphere, preventing gas from leaking out.

Claims (6)

1. A loading device for loading small parts (52) into the furnace (12), having a feeding bottom (20), which is at least partially enclosed in a casing (18) and which is inclined to the horizontal at an angle α of a maximum of about 20 ° , input (22) and output (24), at least one first and one second shutters (28, 30) for separating the first chamber (32) inside the casing (18) respectively from the previous second chamber (34) and from the subsequent third chamber (36), which is preferably made with the possibility of hermetically connected to the feed hole (16) leech (12), a vibratory drive (38), providing movement of small parts (52) to the output (24) of the loading device, and a feeder (46) for feeding small parts (52) to the input (22) of the loading device in the horizontal direction or slightly tilted to the horizontal direction. 2. The boot device according to claim 1, in which the angle α of the inclination of the supply bottom (20) lies in the range from 0 to 15 ° inclusive. 3. The boot device according to claim 1 or 2, characterized in that the shutters (28, 30) are made mainly in the form of tight shutters. 4. The loading device according to claim 3, characterized in that the casing (18) has on its output side an elongated part (26) configured to be introduced into the furnace (12) through its loading hole (16). 5. The boot device according to claim 4, characterized in that for sealing the casing (18) relative to the boot hole (16) of the furnace (12), an elastic seal (44) is provided. 6. The loading device according to claim 5, characterized in that the elongated part (26) of the casing is designed to move small parts (52) under the influence of vibration up to the conveyor (14) in the furnace (12).