JPH056917Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to an improvement in a cooling machine for steamed raw materials, which continuously cools steamed raw materials such as rice, wheat, soybeans, etc. stacked on an endless belt-shaped raw material transfer belt while blowing air from above to below while the steamed raw materials are being transferred. It is.

[Prior art and its problems]

Conventionally, raw material transfer belts used in coolers in the above-mentioned fields have generally been in the form of an endless net. Since the raw material transfer belt is in the form of a net, it has numerous irregularities on its surface, making it extremely difficult to clean it after use. One cleaning worker was assigned to clean the nets using a high-pressure washer, but the material residue adhering to the nets could not be completely washed away in one round, resulting in wasted labor and time. Also,
Cleaning only from one surface side was insufficient. Furthermore, the sealing performance between the side walls provided to prevent raw materials from leaking to the sides of the transfer belt would be poor if the transfer belt remained in the form of a net due to its uneven surface, so resin coating was applied to both edges of the net. Although a method of making the seal flat has been taken, the resin coated portion is prone to wear and requires frequent maintenance to maintain sealing performance. In addition, due to poor sealing between the side wall of the device and both edges of the net, cooling air cannot effectively pass through the cooling material, resulting in a reduced cooling effect.

[Means to solve the problem]

Therefore, in order to solve the above-mentioned problems, the present invention provides a cooling machine for steamed raw materials that cools the steamed raw materials by ventilating air during the transfer of the steamed raw materials stacked on an endless belt-shaped raw material transfer belt. We have developed a continuous steaming raw material cooling machine that is characterized by consisting of a thin plate belt 2 in which a large number of holes 1 are formed by punching, etc., with the vicinity of both side edges of the raw material transfer belt left unperforated. be. The thin plate belt 2 uses a thin plate made of metal, plastic, etc., and a stainless steel plate is particularly preferably used. The large number of holes 1 can be formed by punching, laser processing, molding, or other methods. The number and size of the holes 1 can be changed as appropriate depending on the type of raw material to be cooled, and in particular, the aperture ratio can be changed in proportion to the distance from the position of the suction duct. Further, the thin plate belt 2 is provided with non-perforated portions at appropriate intervals in the width direction, and these portions are used as welding points when the two ends are brought together to form an endless band shape or when a damaged portion is replaced.

[Effect]

As mentioned above, since the raw material transfer belt is composed of a thin plate belt 2 with a large number of holes 1 formed by punching, the surface of the belt 2 is not uneven like that of conventional nets, but is smooth. This makes cleaning work very easy. Further, the sealing property with the side wall is good, and the maintenance cost for maintaining the sealing property is low. Furthermore,
In the case of a structure in which air is sucked by a suction duct that exists only on one side, uniform cooling of the raw material on the belt can be adjusted by adjusting the aperture ratio of the holes 1 that act as ventilation. Since the holes 1 are provided by machining or the like, the open area ratio can be easily adjusted. In addition, the sealing performance between the side wall of the apparatus and both sides of the net is improved, and by placing the raw material only on the porous portion, cooling air is effectively vented to the raw material, resulting in good cooling efficiency.

【Example】

Embodiments of the present invention will be described in detail below with reference to the drawings. Fig. 1 is a partial plan view of the thin plate belt used in the continuous steaming material cooling machine of the present invention, and Fig. 2 is a state in which only the thin plate belt is broken, showing the state of engagement between the transfer roll and the thin plate belt. It is a front view of
FIG. 3 is an overall side view of the continuous steaming material cooling machine of the present invention. As shown in Fig. 3, the continuous steaming material cooling machine of the present invention sucks air from above to below while transferring the steaming materials stacked on an endless belt-shaped material transfer belt (thin plate belt 2). This is for cooling the steamed raw material. Steamed raw materials such as rice, wheat, soybeans, etc. are transferred from a raw material input hopper 11 to a raw material transfer belt that is a major feature of the present invention, that is, a thin plate belt 2 having a large number of holes 1 formed by punching as shown in FIG. It is thrown on top. The thin plate belt 2 is endlessly wrapped around a drive roll 12 driven by a motor and a driven roll 13 driven by the drive roll 12, and the rotation of the drive roll 12 transports the raw material to the left in the figure. During the transfer in the ascending portion of the belt 2, the first suction duct 14 and the second suction duct 15 suck the heat of the raw material and discharge it to the outside of the apparatus, thereby cooling the raw material. The cooled raw material is discharged from the discharge port 16. Here, the structure of the thin plate belt 2 will be explained in more detail with reference to FIGS. 1 and 2. As is clear from FIG. 1, the vicinity of both side edges of the thin plate belt 2 used in the example is not provided with holes 1 and is left unperforated. This is to ensure a high level of sealing performance by making the portion that contacts the side wall 3, which prevents the raw material from leaking to the side of the thin plate belt 2, a smooth surface. As a result, the resin coating process near both side edges, which was required in the case of conventional nets, can be omitted, and there is less deterioration in sealing performance due to wear, and maintenance work is also reduced. The thin plate belt 2 is a thin stainless steel plate, has a belt width of about 1200 mm, and has holes 1 of 2 mmφ provided at intervals of 6 mm. The open area ratio is approximately 10%. In the punching process, the opening ratio is increased in the portion of the thin plate belt 2 that is far from the suction duct, so that the raw material can be cooled uniformly. In addition, as shown in FIG. 2, along the edge portions on both sides of the back surface of the thin belt 2, a slip prevention means 4 is provided to prevent the belt 2 from coming off the drive roll 12 and the driven roll 13. Rubber piece protrusions are attached. In order to receive this rubber piece protrusion, the corners of the outer peripheral edges of the drive roll 12 and the driven roll 13 are rounded.

[Effect of the idea]

As explained in detail above, the continuous steaming material cooling machine of the present invention can perform the cleaning operation after use very easily and thoroughly without any trouble, and can always perform the cooling operation in a clean state. In addition, the sealing properties between the side wall and the raw material transfer belt are good, and the raw material during transfer does not leak to the outside of the side wall, which prevents it from rotting and becoming a breeding ground for bacteria, which further enhances the above effects. do. In addition, cooling air is effectively vented to the raw material, resulting in good cooling efficiency.

[Brief explanation of drawings]

Fig. 1 is a partial plan view of the thin plate belt used in the continuous steaming material cooling machine of the present invention, and Fig. 2 is a state in which only the thin plate belt is broken, showing the state of engagement between the transfer roll and the thin plate belt. It is a front view of
FIG. 3 is an overall side view of the continuous steaming material cooling machine of the present invention. 1... Hole, 2... Thin plate belt, 3... Side wall, 4
... Misalignment prevention means, 11 ... Raw material input hopper, 1
2... Drive roll, 13... Driven roll, 14...
...First suction duct, 15...Second suction duct, 1
6...Exhaust port.

Claims (1)

[Scope of utility model registration request] In a steaming raw material cooling machine that cools the steaming raw materials by ventilating air through the steaming raw materials during the transfer of the steaming raw materials stacked on an endless belt-shaped raw material transfer belt, the vicinity of both side edges of the raw material transport belt are provided with non-perforated pipes. A continuous steaming raw material cooling machine characterized in that it is constructed of a thin plate belt 2 in which a large number of holes 1 are punched by punching or the like while the belt remains intact.