阅读说明：本技术 一种销钉烘炉 (pin baking oven ) 是由 乌夫莱因哈特 于 2017-10-12 设计创作，主要内容包括：本发明涉及一种用于干燥至少一个管状容器(2)涂层的销钉烘炉(1),至少包括：烘炉内部空间(3),其中设计了近似垂直定向的运输平面(4),其中在运输平面(4)的上游有进气室(5)并且在内部空间(3)的运输平面(4)下游设计了排气室(6),在运输平面(4)上至少设计一个U形通道(7),并且通向排气室(6),一种带有多个销钉(9)的输送装置(8),其中每个销钉(9)至少可以部分伸入U形通道(7)中,并且设计和制造成可以放置管状容器(2)的造型；其中在烘炉内部空间(3)内至少有一个U形通道(7)部分地中断。(The invention relates to pin oven (1) for drying a coating of at least tubular containers (2), at least comprising an oven interior (3), in which an approximately vertically oriented transport plane (4) is provided, wherein an air inlet chamber (5) is provided upstream of the transport plane (4) and an air outlet chamber (6) is provided downstream of the transport plane (4) of the interior (3), wherein at least U-shaped channels (7) are provided on the transport plane (4) and open into the air outlet chamber (6), conveyor means (8) having a plurality of pins (9), wherein each pin (9) can at least partially protrude into the U-shaped channel (7) and a profile is provided and produced in which the tubular containers (2) can be placed, wherein at least U-shaped channels (7) are partially interrupted in the oven interior (3).)

1. The invention relates to pin oven (1) for drying a coating of at least tubular containers (2), comprising at least:

-a furnace interior (3), in which an approximately vertically oriented transport plane (4) is designed, wherein an inlet air chamber (5) is provided upstream of the transport plane (4) and an outlet air chamber (6) is provided downstream of the transport plane (4) within the interior (3);

-at least U-shaped channels (7) are designed on the transport plane (4), and the open sides of the U-shaped channels (7) are directed to the exhaust chamber (6);

- a conveyor (8) with a plurality of pins (9), wherein each pin (9) is at least partially insertable into the U-shaped channel (7) and is designed and manufactured in a configuration capable of housing a tubular container (2);

wherein at least U-shaped channels (7) are partially interrupted in the interior space (3) of the oven.

2. Pin furnace according to claim 1, characterized in that the U-shaped channel (7) on the conveying plane (4) runs with at least upper bends (10), at least lower bends (11) and at least straight sections (12), the upper bends (10) being connected with the lower bends (11) by straight sections.

3. Pin furnace according to claim 1 or 2, characterized in that at least of the U-shaped channels (7) are partially interrupted in at least the lower curved portions (11) of the U-shaped channels (7).

4. A pin furnace according to claim 3, characterized in that at least U-shaped channels (7) have a channel bottom (13) oriented parallel to the conveying plane (4) and two channel side walls (14) opposite each other and extending towards the exhaust chamber.

5. Pin furnace according to claim 4, characterized in that at least the side of the channel side wall (14) or both sides of the channel side wall (14) are provided with at least notches (15) to partially interrupt the U-shaped channel (7).

6. A pin toaster according to claim 5, characterized in that at least notches (15) are provided at specific locations (16) along the path of the U-shaped channel (7).

7. Pin furnace according to claim 5 or 6, characterized in that at least the lower curved portions (11) of at least of the U-shaped channels (7) are partially interrupted.

8. A pin toaster according to claims 5 to 7, wherein at least slots (15) are dimensioned to accommodate at least containers (2) to be removed smoothly through the slots (15) at the U-shaped channel (7).

9. The pin toaster of claim, further comprising at least:

-at least circulation means (17) which are at least partly installed in the interior space (3) of the oven and which are used for the fluid flow of the interior space (3) of the oven.

10. The pin toaster of claim, further comprising at least:

-at least heating means (18) designed and arranged for heating a fluid located in the interior space (3) of the oven.

Technical Field

The present invention relates to pin ovens for drying coatings of at least tubular articles, and is particularly useful for curing coatings on beverage cans.

Background

In the manufacture of metal cans for use in, for example, carbonated beverage products, beverage cans are generally cylindrical in shape and have a coating, such as paint or color, as is known.

Pin ovens typically have a chain feeder with product cans connected to a chain by pins that will follow a defined (typically multi-loop winding), especially an internal curved path through the pin oven, typically the product cans are semi-finished, that is, have ends open, but have been coated, pins inserted and guided by a chain conveyor for drying through the oven interior, in order to improve the efficiency and uniformity of convection heating, the product cans inserted into the pins are directed through the oven interior with the side facing the U-shaped channel, in which case the walls of the channel have perforations that facilitate relatively uniform ventilation of the product can surfaces, particularly the product can bottom and the exterior surface of the can casing.

However, when product cans are transported in such a U-shaped channel, it has been found that if a product can slips down pins in the channel, it can result in a large number of product cans slipping off the subsequent pins.

In addition, it may happen that product cans that slide off of the pins are not lifted out of the other product cans in the lane, and therefore require manual removal of the slid product cans from the lane.

Disclosure of Invention

In particular, a pin oven for drying at least tubular containers should improve production efficiency and energy efficiency as much as possible while still ensuring that the aim of heating the coating uniformly is achieved.

It should be noted that the features listed individually in the dependent claims can be combined where applicable by means of logic in technical terms and that the invention is further improved by the step , furthermore the features specified in the claims are described and explained in more detail in the description and an embodiment of the invention is presented therein in the form of a further refinement.

To this end, a pin oven for drying a coating of at least tubular containers is facilitated, the pin oven comprising at least:

an oven interior, in which an approximately vertically oriented transport plane is designed, wherein an inlet air chamber is provided upstream of the transport plane and an outlet air chamber is provided downstream of the transport plane in the interior;

at least U-shaped channels are designed on the transport plane, and the open sides of the U-shaped channels open into the exhaust chamber;

, a conveyor with a plurality of pins, each of which is at least partially able to penetrate into the U-shaped channel and is designed and made in such a way as to be able to house a tubular container;

in other words, this means in particular that at least of the U-shaped channels do not run continuously inside the oven and/or run discontinuously in the transport plane.

In particular, the pin oven should be operable at temperatures in the range of 100 to 300 degrees celsius, preferably between 150 and 250 degrees celsius. The fluid heated in the pin oven can circulate inside the oven, in particular can move around a horizontally oriented axis. In this case, the fluid heated by the heating means is accelerated by the circulating means during the furnace stroke through which it passes, and then flows through the inlet chamber, the U-shaped channel and the outlet chamber in this order. Where appropriate, it can be designed such that: after passing through the exhaust chamber, the fluid can in particular be returned (in a closed circuit) to the circulation device and/or to the inlet chamber along the heating device.

The preferred design of the tubular container is a can-like, tubular or sleeve-like metal sheet, the preferred design of the tubular container is open on one side, in particular (only) at the top end.

Preferably, the transport plane is oriented approximately vertically, coinciding with the vertical plane or forming an angle of at most 25 °, in particular an angular orientation of 15 ° or 13 °. Particularly preferred embodiments provide that the approximately vertically oriented conveying plane forms an angle with the vertical plane in the range from 5 ° to 25 °, in particular between 10 ° and 15 ° or even between 10 ° and 13 °.

A preferred embodiment provides that the conveying device has at least chain conveyors.

In a particularly preferred embodiment, the conveying device has at least , in particular circumferentially drivable, conveying chains, on which a plurality of pins are arranged, which pins can be designed essentially perpendicular to the conveying plane and are kept at a distance of from the conveying chains, in particular for carrying the tubular containers, (each) pin can contact the inside of the container, in particular the inside of the closed end side of the container.

According to advantageous embodiments, it is proposed that the course of the U-shaped channel in the transport plane has at least upper bends, at least lower bends and (at least ) straight sections between them.

According to advantageous embodiments, it is proposed that at least of the U-shaped channels are at least partially interrupted, preferably almost completely interrupted, or even completely interrupted, at least at lower bends of the U-shaped channels, that is to say at least of the U-shaped channels are of discontinuous design and/or the line is in a discontinuous state.

According to advantageous embodiments, it is proposed that at least of the U-shaped channels have a channel floor oriented parallel to the transport plane and two channel side walls which face one another and extend beyond the channel floor, in particular toward the exhaust gas chamber, in particular the U-shaped channels are open at a position facing the channel floor, i.e. the U-shaped channels have an open side facing the channel floor.

Particularly preferred embodiments are those in which the channel bottom has notches and/or round holes and the channel side walls have round perforations.

According to another advantageous embodiments, it is proposed that at least of the channel side walls or both channel side walls be provided with at least notches, preferably with at least notches forming the interruption of the U-shaped channel.

For example, 1,2,3 or 4 notches may be designed in the traveling path, and 1 or 2 notches are a preferred design. A particularly preferred design is to design only 1 slot.

According to another advantageous embodiment, it is proposed that at least notches be designed at specific locations along the path of the U-shaped channel, a preferred design is where the specific locations are the or more nadirs or deepest locations of the path of the U-shaped channel.

According to another advantageous embodiment, it is proposed that at least notches are provided in at least lower bends along the path of the U-shaped channel, preferably at least notches are provided in each lower bend of the U-shaped channel, and a further preferred embodiment, the at least notches should be located at the lowest point or deepest point of at least or even of each lower bend of the U-shaped channel.

According to a further advantageous embodiment, it is proposed that at least recesses should be dimensioned such that at least containers can be moved out smoothly through the slot at the U-shaped channel, the slot having a slot depth and a slot width.

Preferably, the depth of the notches should be in the range of 1 to 30cm, in particular 1 to 20 cm or even 5 to 15 cm, and preferably, the width of the notches should be in the range of 2 to 50cm, in particular 5 to 30cm or even 5 to 15 cm, and preferably, the depth of at least notches reaches the (entire) bottom of the channel side wall.

According to advantageous embodiments, it is proposed that the pin oven further comprises at least:

-at least circulation means mounted at least partially inside the furnace and operable to cause a fluid flow inside the furnace.

The circulation device may comprise at least (drivable) impellers on which a plurality of blades can be designed, a preferred embodiment is that the circulation device has at least blowers, (circulation) fans or compressors, a preferred embodiment is furthermore that the circulation device has a housing, in particular an impeller housing, in which at least impellers can be designed, a further preferred embodiment is that the circulation device should have at least (inlet flow) nozzles, which can be designed in terms of flow technology upstream of at least impellers, a preferred embodiment is that the (inlet flow) nozzles are integrated into the housing or into a separate component, which is then fixed by means of nozzle holders into the circulation device frame inside the furnace, a preferred embodiment is that the parameters of the circulation device should be able to accelerate the fluid to a flow rate of 20 to 40m/s, in particular in the region of the U-shaped channel.

According to advantageous embodiments, it is proposed that the pin oven further comprises at least:

-at least heating means designed and installed to heat the fluid located inside the furnace.

The preferred design of the heating device is to have at least heaters that can be operated electrically and/or by fossil fuels.

In addition, exhaust fans can be installed, which should preferably be arranged in the exhaust chamber and/or be connected to the exhaust chamber, taking into account the fluid technology, which exhaust fans can be installed at least partially inside the oven and/or in the pin oven.

A further preferred embodiment of step is that the pin oven has a main drying space and a heating space, which in the connected state form the internal structure of the oven, and that the main drying space should have a height of the main drying space of 2 to 3m, in particular between 2 and 2.6 m, even between 2 and 2.55 m, and a further preferred embodiment of step is that the internal space of the main drying space has a volume of 15 to 100m³In particular between 20 and 50 cubic meters or even between 20 and 25 cubic meters. The lower overall height of the drying body space, in particular in combination with a smaller volume of the drying body space, has the particular advantage that the drying body space can be transported in standard containers. In particular a pin oven, having a capacity of at least 2000 or even at least 2400 containers per minute. In particular, the corresponding standard container has the following internal dimensions:

length of the container: 12 m; width of the container: 2.35 m; height of the container: 2.69 m. Such a standard container is also known as a "40-FuB-HC container".

The invention and the technical environment will be explained in more detail below with reference to the drawings. It should be noted that the invention should not be limited by the illustrated embodiments. In particular, unless explicitly stated otherwise, some of the structures shown in the drawings may be extracted and combined with other components and/or other drawings and/or the description.

Drawings

Figure 1 shows a cross-sectional view of a pin oven,

figure 2 shows a detailed view of the U-shaped channel,

figure 3 shows a detailed view of the U-shaped channel route with the interrupted structural design.

List of reference numerals: 1. drying the pin; 2. a tubular container; 3. oven interior space; 4. a transport plane; 5. an air intake chamber; 6. an exhaust chamber; 7. a U-shaped channel; 8. a transportation device; 9. a pin; 10. an upper curved portion; 11. a lower curved portion; 12. a straight line portion; 13. the bottom of the channel; 14. a channel sidewall; 15. a notch; 16. a specific location; 17. a circulation device; 18. a heating device.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and examples, in which figure 1 shows a cross-sectional view of a pin furnace 1 for drying a coating of at least tubular containers (not shown here).

The pin kiln 1 is provided with a kiln interior 3 which is substantially perpendicular to the conveying plane 4, the circulation of the fluid in the kiln interior 3 is shown by means of the example arrows in fig. 1, an air inlet chamber 5 is provided upstream of the conveying plane 4 of the kiln interior 3 and an air outlet chamber 6 is provided downstream of the conveying plane 4, U-shaped channels 7 are provided in the conveying plane 4 in the pin kiln 1 and lead to the air outlet chamber 6, and, in addition, according to the illustration in fig. 1, the pin kiln 1 is provided with a conveying device 8 with a plurality of pins 9, a circulating device 17 which is at least partly arranged in the kiln interior 3 and a heating device 18 for heating the fluid located in the kiln interior 3 and in which, for example, a gas burner can be arranged in the kiln interior 3, it is shown in fig. 1 by means of an example by means of arrows how the circulating device 17 sucks in the fluid heated by the heating device 18 and moves it inside the kiln interior 3 or through the kiln interior 3.

Fig. 2 shows a detailed view of the U-shaped channel 7, which U-shaped channel 7 extends in the conveying plane 4 and opens into the outlet chamber, the U-shaped channel 7 being connected to the inlet chamber 5 by means of perforated, partially ventilated duct walls 13, 14, the U-shaped channel 7, according to the representation in fig. 2, having a channel bottom wall 13 parallel to the conveying plane 4 and having two channel side walls 14 extending opposite one another, said channel side walls 14 extending higher than the channel bottom wall 13, straight towards the outlet chamber 6, the flow conditions of the fluid being shown by means of arrows, also in fig. 2, the spike 9 of a conveying device (not shown here) extending at least partially into the U-shaped channel 7, according to fig. 2, furthermore, the spike 9 being designed and arranged to receive the tubular container 2, the tubular container 2 being guided through the U-shaped channel 7 by means of the conveying device.

Fig. 3 shows a detailed view of the U-shaped channel path 7 with an interrupted structural design, according to which fig. 3 the conveying plane 4 is illustrated, it being seen that the path of the U-shaped channel 7 in the conveying plane 4 has at least upper curved portions 10, at least lower curved portions 11 and at least straight portions 12, the upper curved portions 10 being connected to the lower curved portions 11 by the straight portions, the U-shaped channel 7 having a channel bottom wall 13 parallel to the conveying plane 4 and having two channel side walls 14 extending opposite each other, said channel side walls 14 being higher than the channel bottom wall 13.

In fig. 3 it is shown that at least U-shaped channels 7 are partially interrupted (only schematically indicated here) in the oven interior 3. for a U-shaped channel 7, for example, at the lower bend 11 of the U-shaped channel 7 shown on the left in fig. 3, and for a U-shaped channel 7, for example, at the lower bend 11 of the U-shaped channel 7 shown on the right in fig. 3, and at the same time, the notches 15 are located at the lower bend 11 of the lower channel side wall 14 shown on the right in fig. 3.

Furthermore, notches 15 are designed at specific positions 16 along the U-shaped channel 7, i.e. for example at the lowest point of the course of the U-shaped channel 7. In addition, the slot 15 should be dimensioned in such a way that the container 2 can be removed from the U-shaped channel 7 through the slot 15.

There is disclosed a pin oven for drying a coating of at least tubular containers which at least partially solves the problems not solved by the prior art.