JP3313528B2 - Cooling air blowing type individual refrigeration system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling air blow-up type individual refrigeration system (hereinafter referred to as "IQF treatment") for rapidly freezing a large amount of vegetables, fruits, marine products and the like individually and individually (hereinafter referred to as "IQF treatment"). "Flow freezer").

[0002]

2. Description of the Related Art In principle, a flow freezer floats and conveys articles by blowing up cooling air and, at the same time, rapidly freezes the articles one by one using the cooling air.

[0003] However, depending on the size and properties of some items, it is not easy to float and convey them. In such a case, due to the freezing time, a considerably long net conveyor is provided and the cooling air is blown up while conveying. An IQF process is performed on an article on the net.

[0004] In this case, the article containing moisture and the cooled net tend to stick together during freezing (meaning from the start of cooling to before the freezing) and are hard to separate once attached. The purpose of the IQF process cannot be achieved unless the surface and other items are hardly attached.

[0005]

In particular, when an article is soft and contains a large amount of moisture, when the article is conveyed into a freezer compartment by a conveyor, its ground contact surface is rapidly cooled and sticks on the net. Parts other than the ground will be gradually cooled. Therefore, if a large amount of articles are to be processed, a large amount of articles that stick to the net, articles that stick to the articles, and the like will be generated.

When this situation occurs, the articles do not float even when blown up by the cooling air, and are transported fixedly in a certain direction, so that a surface to which the cooling air hits strongly and a surface to which the cooling air hits weakly are formed. The problem that unevenness occurs in time and it is not possible to uniformly freeze in a short time, and the problem that the product is often chipped and the yield is poor because the frozen product must be dropped from the net when transferring to the next process There is.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a freezing room as an apparatus main body, and a conveyor carrier net formed in a net-like shape so as to be able to ventilate and transporting goods to be placed, A conveyor provided in the freezer compartment, an air cooler for supplying cooling air so that the cooling air flows from below to above the conveyor carrier net, and a freezer provided in the freezer compartment, which freezes from a cooling start point of the article. A hitting vibration device for causing the conveyor carrier net to vibrate up and down in the direction of transporting the articles before reaching the point, thereby causing the articles to jump on and off the conveyor carrier net. In a cooling air blowing type individual refrigeration system equipped with a conveyor in a freezer compartment, a conveyor carrier is required between the start point of cooling the goods and the freezing point. Characterized in that it incorporates a striking vibration device that vibrates the Tsu door up and down. Further, the impact vibration device has a plurality of rotary hammers arranged in a conveying direction of the conveyor carrier net for hitting the conveyor carrier net while rotating.

[0008] Here, the cooling start point means a point at which the article on the conveyor comes into contact with the cooling air and starts to exchange heat. The term "freezing point" means that the article is covered with frozen ice. Means a point where it has become difficult to stick to the item.

[0009] Further, the impact vibration device is a device having a function of causing a vibrating motion of the carrier net by periodically hitting a hammer-shaped product or a product having a similar function to the conveyor carrier net. means.

[0010]

According to the present invention constructed as described above, when an article is placed on a conveyor and conveyed into a freezer compartment, the carrier net repeats vertical vibrations from the cooling start point by the impact vibration device. Is transported. For this reason, the articles on the carrier net jump individually and pass from the cooling start point to the freezing point while rolling.

Therefore, even in the case of an article that is soft and contains a large amount of water, a certain surface of the article is rapidly cooled on the net,
The next moment she tries to stick on the net, she jumps. The same happens when an item comes into contact with an item.

In this way, the item proceeds to the freezing point without sticking to the net and other items.

[0013] Further, the articles jump and roll, so that the cooling air is evenly hit, so that the pre-cooling effect is improved at the cooling start point, and the articles are uniformly frozen in a short time.

The shortening of the freezing time has the advantage of increasing the throughput, that is, increasing the production.

Since the products after the freezing point are covered with a completely frozen ice film, the products are hardly attached to other products and the net, and the purpose of the IQF treatment can be achieved. Therefore, since it is not necessary to drop the article from the net for the next process, the chipping of the article is extremely reduced and the yield is remarkably improved.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cooling air blowing type individual refrigerating apparatus according to an embodiment of the present invention.

FIGS. 1 to 3 show a flow freezer according to the present invention. A freezing room 1 serving as an apparatus main body is provided with a conveyor 2a and a next step conveyor 2b. The air blown by a blower 5 provided in the lower part of the freezing room 1 is changed to cooling air by an air cooler 4 as shown by a symbol W in FIG. The article 11 is frozen while being conveyed on the carrier nets 3a and 3b. The air after the freezing of the article 11 is supplied to the freezer 1
The air circulates through the inside, is sucked by the blower 5 and is blown to the air cooler 4 again. The conveyor 2a has a carrier net 3
In order to impact-vibrate a, the impact-vibration device 6 is incorporated from the cooling start point to the freezing point.

As shown in FIGS. 4 and 5, the impact vibration device 6 has a structure in which several sets of rotating units 6 'are combined, each of which is linked by a belt 9, and rotated by a motor 10.

The rotating unit 6 'is, as shown in FIG.
The rotary shaft 16 penetrates a rotary hammer 12 having a hammer roller 13 attached to both ends for hitting the carrier net 3a while rotating.

The hammer roller 13 is pivotally mounted on the rotary hammer 12, and the shaft 14 is prevented from coming off by a spring pin 15.

The rotary hammer 12 is positioned and fixed to the rotary shaft 16 by a parallel key 17.

As shown in FIG. 4, the rotating unit 6 'thus assembled is fixed to an upper conveyor frame having bearing units 7 mounted on both sides of a rotating shaft 16, and a pulley 8 is mounted on one side of the shaft. Can be

Since the impact vibration device 6 is configured as described above, it is possible to cope with a change in the net width of the conveyor by increasing or decreasing the portion of the rotary hammer 12, and from the cooling start point depending on the properties of the article to be processed. Fluctuations in the distance to the freezing point can be handled by increasing or decreasing the rotation unit 6 '.

According to this embodiment, as seen in FIG.
In the period from the cooling start point to the freezing point, the goods 11
However, as shown in FIG. 7, the impact vibration device 6 strikes the carrier net 3a, so that the carrier net 3a rises rapidly to the position of the carrier net 3a '. Therefore, the article 11 jumps up and down individually. At this time, the direction of the article 11 changes, and the cooling air W from below blows up the entire article 11.

Although the cooling air W is heated by exchanging heat with the article 11, it circulates in the freezing room, is sucked again by the blower 5 and becomes the cooling air W again by the air cooler 4.

Since the states shown in FIGS. 6 and 7 repeatedly occur up to the freezing point, the article 11 is
The IQF process is reliably performed without sticking to any of the other items 11.

The impact vibration device is limited to the shape of the above-described embodiment, as long as a hammer-like object or an object having a similar function hits the carrier net and causes vibration up and down. Absent.

[0028]

As is apparent from the above description, the present invention is provided with a striking vibration device for striking the carrier net from the cooling start point of the flow freezer to the freezing point. IQF even for products that are soft and contain a lot of water
Processing is performed reliably. (2) Since the cooling air hits the product evenly, the cooling effect is high and uniform freezing can be performed in a short time. (3) The yield is high because the goods do not stick to the net. (4) Accordingly, if the flow freezers have the same capacity, the processing amount (production amount) increases. It has the effect of.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a cooling air blowing type individual refrigeration apparatus according to an embodiment of the present invention.

FIG. 2 is a plan sectional view of the refrigeration apparatus.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a plan view of an impact vibration device incorporated in the refrigeration apparatus.

FIG. 5 is an exploded perspective view of a rotating unit of the impact vibration device.

FIG. 6 is an operation diagram of the impact vibration device when the rotary unit does not impact the carrier net.

FIG. 7 is an operation diagram of the impact vibration device, showing a state in which a rotating unit impacts and vibrates a carrier net.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Freezing room 2a, 2b Conveyor 3a, 3b 'Carrier net 4 Air cooler 5 Blower 6 Impact vibration device 6' Rotation unit 10 Motor 12 Rotary hammer 13 Hammer roller W Cooling air

Claims (2)

(57) [Claims] 1. A freezing room as an apparatus main body, a conveyor carrier net formed in a net-like shape so as to allow ventilation and transporting items to be placed, a conveyor provided in the freezing room, and a conveyor carrier net An air cooler that supplies cooling air so that the cooling air flows from below to above; provided in the freezer compartment, and the conveyor carrier net is provided between the cooling start point and the freezing point of the article. A cooling air blowing type individual refrigeration apparatus, comprising: a striking vibrating device that vibrates up and down in a conveying direction to cause articles to jump on the conveyor carrier net. 2. The cooling device according to claim 1, wherein the impact vibration device has a plurality of rotary hammers arranged in a conveying direction of the conveyor carrier net for rotating and hitting the conveyor carrier net. Air blowing type individual refrigeration system.