KR20170101113A - Conveyor for Freezer - Google Patents

Abstract

When food is put on an upper surface of a conveyor of a frozen food manufacturing facility, the food tends to stick to the surface of a conveyor belt in freezing process. The present invention relates an apparatus for preventing adhesion to eliminate such sticking phenomenon. The apparatus for preventing adhesion comprises: a center shaft installed in an orthogonal direction with respect to a transporting direction of the conveyor; a shaft supporting means for supporting the center shaft such that the center shaft is able to shaft rotate; a shaft rotation motor for shaft rotating the center shaft; and an impact equipment installed to be projecting in a radial direction in the center shaft to be rotating with the center shaft, and installed in the center shaft to apply impact to a lower surface of a conveyor belt of the conveyor.

Description

Conveyor device for frozen foods {Conveyor for Freezer}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying conveyor in a frozen food facility, and more particularly, to a conveyor apparatus for a frozen food in which the food placed on an upper surface of the conveyor is prevented from sticking to the surface of the conveyor belt during the freezing process.

Many kinds of frozen foods have been developed in order to enjoy foods that are actually cooked even in the busy daily life of modern people. Due to the development of refrigeration technology and transportation technology, the number of kinds of frozen food is getting richer.

Frozen food is a food that is cooked when the user thaws the frozen food. These frozen foods are subjected to a rapid freezing process after they are completely cooked. In this process, a large-scale freezing facility (freezer) is used, and a conveyor device is used to supply the individual food with the refrigeration facility. The cooked food is rapidly frozen as it is continuously moved while being placed on the conveyor belt.

However, in the initial stage of freezing, when the frozen food starts to come into contact with the surface of the conveyor belt, the moisture on these surfaces freeze and freeze with each other. If the frozen food and the conveyor belt are frozen in wide contact, it is not easy to separate them after the frozen food is finished. Frozen food is damaged in the process of shaking, and there may be a case where food remains on the conveyor belt. There are some cases where the surface of the conveyor belt adheres to the surface of the conveyor belt due to the nature of the food, and a countermeasure against such problems is needed.

Korean Patent Application No. 10-2010-0034159 Korean Patent Application No. 10-2012-7009290

It is an object of the present invention to provide a frozen food manufacturing facility capable of easily removing frozen food from a conveyor by eliminating the phenomenon that the food placed on the surface of the conveyor belt continuously running in the frozen food manufacturing facility sticks to the surface of the conveyor belt during the freezing process, And a conveying device for a frozen food which does not remain on the conveyor. And more particularly, to provide a conveyor device for frozen food which can relieve an impact applied to a conveyor belt during a process of separating frozen food by applying an impact to the conveyor belt.

The above-described object is achieved by providing a conveyor apparatus provided in a conveying line of a frozen food manufacturing facility,

A center axis installed in a direction perpendicular to the conveying direction of the conveyor; A shaft supporting means for supporting the central shaft so as to be rotatable; An axis rotation motor for axially rotating the central axis; And a shock mechanism installed on the central axis to protrude in the radial direction and to rotate together with the central axis so as to impact the bottom surface of the conveyor belt of the conveyor, Of the present invention.

According to an aspect of the present invention, the impact mechanism includes:

A rotating plate that rotates in accordance with the rotation of the central shaft, the plurality of spaced apart from each other along the longitudinal direction of the central axis; An arm projecting radially from the rotating plate; And a striking roll that is rotatably installed at the tip of the arm and comes into rolling contact with the bottom surface of the conveyor belt.

Wherein the rotary plate is installed so as to form a pair of two unit rotary plates spaced apart in parallel; The impact roll may be in the form of a pipe connecting the unit rotary plates.

According to another aspect of the present invention, the arms may be fixedly installed at different phases along the longitudinal direction of the central axis.

According to another aspect of the present invention, the rotating mechanism is provided so as to be movable back and forth along the conveying direction of the conveyor by the adjusting means, wherein the adjusting means comprises:

An elongated guide hole provided on a guide plate installed on both left and right sides of the conveyor as a place where the center shaft is allowed to flow;

A rail fixed to the outside of the guide plate in the same direction as the conveying direction of the conveyor; A movable table coupled to the rail so as to be movable along the rail and supporting the shaft; And a movement waiting section for starting the movement section.

According to another aspect of the present invention, the moving wait unit includes:

A screw rod installed parallel to the rail and screwed to the moving table; And a feed motor for rotating the screw rod.

According to still another aspect of the present invention,

Wherein the striking roll is fitted on an outer periphery of a roll shaft transversely fixed to an end portion of the arm; The inner diameter of the striking roll may be larger than the diameter of the roll shaft so as to have a clearance (G) of 5 to 30 mm.

According to still another aspect of the present invention,

The top dead center of the roll axis may be located below the bottom surface of the conveyor belt so that only the striking roll can strike the conveyor belt.

According to another aspect of the present invention, the conveyor belt comprises:

A first coil formed in a spiral shape wound in a right hand screw direction;

A second coil disposed in parallel with the first coil and arranged to overlap with the first coil, the second coil being wound in a left-hand screw direction; And

An elongated connection pin which is fitted in a portion where the first coil and the second coil overlap;

May be continuously connected to form an infinite orbit.

According to the present invention, since the food to be frozen is prevented from sticking to the continuously moving conveyor during the freezing process, it is easy to separate the food from the conveyor after completion of freezing, and the food is not damaged in the process of separation, And a conveying device for frozen food which can prevent the frozen food.

1 is a perspective view of a state in which a conveyor device for frozen food according to an embodiment of the present invention is installed.
2 is a perspective view of a main portion of a conveyor device for frozen foods according to an embodiment of the present invention.
3 is a side view of the conveyor apparatus for frozen food according to the embodiment of the present invention.
4 is a front view of a part of a conveyor device for frozen foods according to an embodiment of the present invention.
Fig. 5 is a front view of the striking roll mechanism of the conveyor device for frozen foods according to the embodiment of the present invention.
6 is a front view of the impact roll for explaining the action of the impact roll mechanism of the conveyor apparatus for frozen food according to the embodiment of the present invention.
7 is a perspective view of a striking roll of a striking roll mechanism of a conveying device for frozen foods according to an embodiment of the present invention.
8 is a partial plan view of a conveyor belt of a conveyor device for frozen foods according to an embodiment of the present invention.
9 to 10 are perspective views of a frozen food conveyor apparatus according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Reference will be made to Fig. 1 basically, and other drawings are referred to as necessary.

The conveyor apparatus for frozen foods according to the present invention is a device for passing food through a refrigerator while continuously moving foods requiring rapid freezing.

The shape of the conveyor 1 may vary. For example, the conveyor 1 may be a rectilinear moving type, a curved moving type, or a rising and falling type elevating and lowering type spiral type (see the freezing tower). The same is true of the specific form of refrigeration equipment. That is, the scope of the present invention is not limited by the form of the conveyor 1 and the specific form of the refrigeration equipment. The present invention is applied to a frozen food manufacturing facility having a food conveying conveyor.

The conveyor belt (3) of the conveyor (1) continuously transports the food (F) to be frozen, and may be mesh-shaped so that cool air flows vertically. Details related to this will be described later. The size of the eye of the mesh of the conveyor belt 3 will be determined according to the frozen food. As a food, small pieces of rice or low-fat vegetables may be transported while being placed on the upper surface 3a of the conveyor belt. By this transfer method, rapid freezing becomes possible. The conveyor belt 3 is generally made of stainless steel, but not limited thereto, and synthetic resin such as Teflon, which is harmless to the human body, may be used.

A central axis 21 is provided in the guide plate 10 provided on the base frame of the conveyor belt in a direction perpendicular to the conveying direction of the conveyor 1. [ So that the center shaft 21 is positioned in a direction perpendicular to the conveying direction of the conveyor 1. The guide plate 10 supports the center shaft 21 so as to be rotatable about its axis.

The guide plate 10 may serve as a guide for guiding the conveyor 1. [ That is, the guide plate 10 may be a component of the conveyor 1. According to the present embodiment, the guide plate 10 is formed in a plate shape vertically provided on both side edges of the conveyor 1.

An axis rotation motor 35 for axially rotating the center shaft 21 is connected to one end of the center shaft 21. [ A decelerator may be interposed between them, and the rotational speed may be adjusted as needed.

The central shaft 21 is provided with a shock mechanism 20 for impacting the bottom surface 3b of the conveyor belt. The impact mechanism 20 is provided so as to protrude in the radial direction of the central shaft 21 and is configured to strike the conveyor belt 3 while rotating together with the central shaft 21. [

The manner in which the conveyor belt 3 is struck and its configuration may indeed be varied. According to this embodiment, the impact mechanism 20 is a striking roll mechanism 22 provided with a plurality of spaced apart portions along the longitudinal direction of the central shaft 21. [

Hereinafter, the impact mechanism 20 will be described mainly with reference to FIG.

The striking roll mechanism 22 includes a rotating plate 221 coupled to the center shaft 21 and rotated in accordance with the rotation thereof, a plurality of arms 222 protruding radially from the rotating plate 221, And a striking roll 223 which is rotatably installed at the tip of the conveyor belt and comes into rolling contact with the bottom surface 3b of the conveyor belt. The arm 222 may be provided in three to six along the circumferential direction of the rotary plate 221. As shown in the figure, when four are installed, the conveyor belt 3 will be hit four times per rotation of the central shaft 21 (see FIG. 3). The impact roll 223 impacts the conveyor belt bottom 3b is shown in FIG. The center shaft 21 is shown rotated clockwise in FIG. 4, but it may be rotated counterclockwise according to the situation. The clockwise direction and the counterclockwise direction of rotation described above will act differently with respect to the moving direction of the conveyor belt and the striking time. Therefore, the rotating speed of the striking roll mechanism will be different between clockwise and counterclockwise.

According to the present embodiment, the striking roll 223 can be struck with a wider area. That is, the rotating plate 221 is provided so as to form a pair of two unit rotating plates spaced apart in parallel, and the driving roll 223 has a pipe shape connecting the unit rotating plates. As shown in Fig. 4, the striking roll 223 is installed between the belt supports 49 supporting the conveyor belt. The belt support 49 is a component of the conveyor provided to prevent the conveyor belt in mesh form from sagging downward.

Meanwhile, the arms 222 can be fixedly installed with different phases along the longitudinal direction of the center shaft 21. [ This is to increase the effectiveness of the impact, and it is possible to eliminate problems such as moving the conveyor belt 3 from side to side by simultaneously striking the entire conveyor belt. According to an embodiment of the present invention, the phase difference of the neighboring arm 222 may be 30 degrees.

In addition, the striking roll 223 is fitted to the outer periphery of a roll shaft 224 which is transversely fixed to the end portion of the arm 222, as shown in Fig. The roll shaft 224 is in the form of a bolt and is screwed to the arm 222 of the rotating plate. The inner diameter of the striking roll 223 is larger than the diameter of the roll shaft. That is, the striking roll 223 has a clearance G of, for example, 5 to 30 mm. So that it is possible to vertically move about the roll axis 224 as shown in the enlarged view of FIG. 5 to FIG.

As a result, the impact roll 223 does not hit the conveyor belt 3 only once but strikes the conveyor belt 3 as if it vibrates continuously in at least two times continuously in one impact roll 223 The effect of hitting can be obtained. More specifically, as depicted in detail in FIG. 6, the striking rolls 223 over the section P through which the fixed roll axis 224 passes the conveyor belt 3 are in a manner of gently pushing the conveyor belt 3 It is possible to obtain an effect of hitting a few times with a certain amount of time.

Referring to FIG. 6, the flow of the striking roll 223 will be described thermally or thermally from the moment of striking. The striking roll 223 is moved outward by the rotating centrifugal force due to the rotation of the striking roll mechanism, And is guided by the roll shaft 224 and guided as the center shaft inner diameter side of the striking roll 223 comes into contact with the striking roll 223, and then moved in a direction to push outward again and strikes again, It vibrates.

In order to simplify the above operation, the striking roll 223 strikes the bottom surface of the conveyor belt 3, first strikes the striking roll 223 in the opposite direction, and then moves to the bottom surface of the conveyor belt 3, 223 at least twice in succession so as to strike the conveyor belt 3 in a vertical direction.

In this way, when the impact roll mechanism is rotated once, the food stuck to the upper surface of the conveyor belt 3 is more easily moved with a shock which is buffered by the clearance between the impact roll and the roll shaft, It is possible to obtain a dropping effect. The greater the clearance between the striking roll 223 and the roll shaft 224, the larger the time period interval for vibrating and the smaller the clearance becomes.

The striking roll mechanism designed by collecting these various conditions includes a striking roll 223 which is guided by the roll shaft 224 while being displaced outwardly while the striking roll 223 rotates about the roll axis 224 by centrifugal force After the cushioning is made while touching the bottom surface of the conveyor belt 3, it is guided by the roll shaft 224 by the clearance at the center of the cushioning roll 223, moves in the inward direction opposite to the striking force, So that the effect of sweeping the bottom surface of the conveyor belt 3 as if it vibrates can be obtained.

The primary striking of the striking roll 223 when the bottom of the conveyor belt 3 is hit by the rotation of the striking roll 223 is such that when the turning radius of the striking roll mechanism is large and the rotating speed is high, At this time, the gap G between the striking roll 223 and the roll shaft 224 acts to buffer the striking force, thereby mitigating the impact applied to the conveyor belt 3. This prevents breakage of the food granules themselves, such as fragile frozen foods, and effectively separates the food granules to be condensed by the impact. In particular, the damage of the impact roll 223 and the conveyor belt 3, Thereby contributing to improvement of the durability of the product.

According to the present embodiment, by setting the top dead center (middle position in Fig. 6) of the roll shaft 224 to coincide with the bottom surface of the conveyor belt or from low to high (for example, from 1 to 5 mm), the roll shaft 224 is directly conveyed (3) It is prevented from hitting.

On both sides of the striking roll 223, as shown in Fig. 7, a separation band 223b is formed in a ring shape. This is to reduce the frictional force between the striking roll 223 and the arm 222 and between the adjacent striking rolls 223 to reduce the rolling resistance.

Further, the striking roll 223 is sandwiched between the arms 222 by two unit rolls 223a. These unit rolls 223a are independent and behave individually. Therefore, the impact on the conveyor belt 3 can be made more colorful.

Hereinafter, a conveyor belt 3 according to an embodiment of the present invention will be described.

The conveyor belt 3 according to the present embodiment includes a first coil 311 formed in a spiral shape wound in the right hand screw direction as shown in an enlarged view of FIG. 1, a second coil 311 disposed in parallel with the first coil 311, A second coil 312 which is arranged to overlap the first coil 311 and the second coil 312 so as to overlap with each other and which is wound in the left-hand screw direction, And includes a pin 313 (see FIG. 3).

That is, the first coil 311 and the second coil 312 are continuously connected by the connecting pin 313 to form an endless track. Further, the first coil 311 and the second coil 312 may have an elliptical shape in longitudinal section by pressing the coil spring in the form of an exoskeleton up and down.

According to this structure, the first coil 311 and the second coil 312 form a comb-like pattern in a planar shape and comb-like patterns in opposite directions as shown in FIG. The driving direction of the conveyor belt 3 is the same as the arrow direction. Therefore, the food F placed thereon is subjected to a force to move to the left by the first coil 311, and a force to move to the right by the second coil. Therefore, the food F is not squeezed to one side, and further, it is transported while being subjected to a slight vibration-like force in the left-right direction.

On the other hand, there is a most appropriate hitting point in the process of freezing the food F conveyed along the conveyor 1. Usually, the outer surface of the food (F) starts to freeze. Depending on the nature of the food, that point will change. Therefore, according to the embodiment of the present invention, the center shaft 21 can be configured to adjust the installation position little by little along the conveyance line of the conveyor 1. [

The center shaft 21 is provided so as to be movable back and forth along the conveying direction of the conveyor 1 by the adjusting means 30. [ An example of the adjusting means 30 will be described first with reference to Fig. 1 although there may be various methods.

The adjusting means (30) according to an embodiment of the present invention comprises:

A long guide hole 13 provided in the guide plate 10 as a place where the central shaft 21 is allowed to flow and a long guide hole 13 fixed and fixed to the outer side of the guide plate 10 in the same direction as the conveying direction of the conveyor 1 And a movable table 32 which supports the central shaft 21 and engages with the rail 34 so as to be operable along the rail 34. [ And a moving standby section for moving the movable table 32 to start. The moving standby section may have the same configuration as the known LM guide unit. The moving standby section may include a screw rod 33 installed parallel to the rail 34 and screwed to the moving table 32 and a feed motor 31 for rotating the screw rod 33. [

According to this configuration, as the screw rod 33 is rotated, the movable table 32 is moved back and forth along the direction indicated by the arrow, so that the center shaft 21 can be adjusted along the guide hole 13 . Such a configuration may be used to start the center shaft 21 at all times. That is, by moving the central shaft 21 back and forth along the conveying direction of the conveyor 1 or vice versa, thereby achieving the same effect as that provided with the plurality of impact mechanisms 20.

The drop prevention bars 12 are provided on both sides of the conveyor belt 3 in parallel with the guide plates 10 in order to prevent the food F laid on the conveyor belt 3 from falling to both sides of the conveyor belt 3 Respectively. The fall preventing member 12 is connected to the guide plate 10 through the mounting bracket 11. The mounting bracket 11 is formed of a plate material bent in a diagonal shape and is spaced apart at a predetermined interval.

Hereinafter, another example of the adjusting means will be described with reference to Fig.

The present embodiment is characterized in that it includes a seating groove 14 provided at an upper end of a guide plate 10 at a predetermined interval and a seating table 14 which is seated in any one of the seating grooves 14, 23). The seating base 23 is provided with a guide plate groove 24 through which the guide plate 10 can be fitted. The seat cushion 23 may be fixed to any one of the seating grooves 14 through a bolt or the like not shown. The present embodiment allows the mounting position of the center shaft 21 to the impact mechanism 20 to be manually shifted. This can be an economical method when it is not necessary to frequently move the position of the center shaft 21. [

Hereinafter, another embodiment of the present invention will be described with reference to FIG.

In the present embodiment, the two impact mechanisms 20 to the center shaft 21 are fixedly provided at intervals, and they are installed so as to be rotated by the single shaft rotating motor 35 at the same time. In other words, pulleys 42 and 43 are fixed to the end of the central shaft 21 and the pulleys 42 and 43 are connected by a belt 41. The shaft rotation motor 35 is connected to the drive pulley 43, and the driven pulley 42 is operated in a dependent manner.

A plurality of the impact mechanisms 20 may be installed along the conveying line of the conveyor belt 3 as described above. Further, the impact mechanism 20 may be additionally provided at a necessary position before and after the freezing chamber. Preferably, the impact mechanism, which is a constituent of the present invention, provided for preventing the condensation adhesion between the food pellets and preventing adhesion on the surface of the conveyor belt by striking food in the freezing chamber, is agitated and the food sticks to the surface of the conveyor belt Or when the food surface is solidified by 50% or more of the food and the surface of the food is hardened, it may be installed at a position where it sticks (adhesion).

In addition, the food can be placed in a position immediately before the operation for lifting the food after the freezing is completed from the conveyor 1.

The configuration shown and described above is merely a preferred embodiment based on the technical idea of the present invention. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

1: Conveyor 3: Conveyor belt
10: Guide plate 12:
13: guide ball 14: seat groove
20: Shock mechanism 21: Center axis
22: striking roll mechanism 23:
30: Adjusting means 31: Feed motor
32: Movement Zone 33:
34; Rail 221: spindle
222: arm 223: striking roll
311,312: first and second coils 313: connecting pin
F: Food

Claims (8)

And installed in a transfer line of the conveyor apparatus provided in the frozen food manufacturing facility,
A center axis installed in a direction perpendicular to the conveying direction of the conveyor;
A shaft supporting means for supporting the central shaft so as to be rotatable; An axis rotation motor for axially rotating the central axis;
And a shock mechanism provided on the central shaft to project in a radial direction on the central axis and to rotate together with the central axis and to impact the bottom surface of the conveyor belt of the conveyor;
The impact mechanism comprising:
A pair of rotary plates that are rotated along the rotation of the central axis, the plurality of rotary plates being disposed along the longitudinal direction of the central axis;
An arm projecting radially from the rotating plate;
A roll shaft connecting the arms to each other;
A striking roll sandwiched between the roll shafts so as to be rotatably installed at the tip of the arm, the striking roll being in rolling contact with the bottom surface of the conveyor belt;
And a conveying device for the frozen food.
The method according to claim 1,
Wherein the inside diameter of the impact roll is larger than the diameter of the roll shaft so as to have a clearance (G) of 5 to 30 mm.
The method according to claim 1,
Wherein the arms are fixedly installed at different phases in the longitudinal direction of the central axis.
The method according to claim 1,
Wherein the rotating mechanism is provided so as to be movable back and forth along the conveying direction of the conveyor by the adjusting means, the adjusting means comprising:
An elongated guide hole provided on a guide plate installed on both left and right sides of the conveyor as a place where the center shaft is allowed to flow;
A rail fixed to the outside of the guide plate in the same direction as the conveying direction of the conveyor;
A movable table coupled to the rail so as to be movable along the rail and supporting the shaft;
And a moving waiting section for moving the moving table.
5. The method of claim 4,
Wherein the moving standby unit comprises:
A screw rod installed parallel to the rail and screwed to the moving table;
And a conveying motor for rotating the screw rod.
3. The method of claim 2,
The rotating plate is installed so that two unit rotating plates spaced apart in parallel form a pair;
Wherein the striking roll is in the shape of a pipe connecting between the unit rotary plates.
The method according to claim 1,
Wherein a top dead center of the roll shaft is located below a bottom surface of the conveyor belt so that only the striking roll can strike the conveyor belt.
The apparatus of claim 1, wherein the conveyor belt comprises:
A first coil formed in a spiral shape wound in a right hand screw direction;
A second coil disposed in parallel with the first coil and arranged to overlap with the first coil, the second coil being wound in a left-hand screw direction; And
An elongated connection pin which is fitted in a portion where the first coil and the second coil overlap;
Are continuously connected to each other so as to form an infinite orbit.

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