JPH043941Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a hot water storage type heat shrinking device that shrinks the film by heat when vacuum packaging raw meat, etc. in the film. This invention relates to a hot water storage type heat shrinking device that enables automatic discharge.

[Conventional technology]

Heat-shrinkable film is used when vacuum packaging raw meat and other foods. This film is formed from a copolymer resin containing vinylidene chloride and vinyl chloride. In this packaging method, raw meat or the like is first vacuum-packaged using the film described above. Thereafter, the film is passed through a heat-shrinking device to heat-shrink the film, thereby bringing the film into close contact with the object to be packaged, such as raw meat.

As the above-mentioned shrinkage device, a heat shower type and a hot air tunnel type are known. However, these shrinking devices have drawbacks such as large size and difficulty in temperature control.

In contrast, hot water storage type shrinking devices have recently been used (for example, Utility Model Application No. 140661/1983). This system is equipped with a hot water tank that stores hot water at a predetermined temperature, and a table that moves up and down within the hot water tank.The table is used to place items to be packaged, such as raw meat wrapped in film, on the table. The film is then immersed in hot water, and the film contracts due to the heat of the hot water.

[Problem that the invention attempts to solve]

The above-mentioned hot water storage type heat shrinking device has the advantage that it is easy to control the heat applied to the workpiece by setting the temperature of the hot water or setting the time for the table to descend into the hot water. .

However, in the conventional hot water storage type heat shrinking apparatus, the material to be processed is supplied onto the table and discharged from the table manually. As a result, heated objects must be handled during discharge, resulting in poor workability. Furthermore, since the material to be treated is discharged manually, it becomes difficult to provide a cover or the like to cover the hot water storage tank. As a result, there are some inconveniences, such as hot water at around 80 degrees Celsius sometimes splashing around.

The present invention was developed by focusing on the above-mentioned conventional problems, and is a hot water storage type heating system that automatically discharges the processed material after lifting the processed material placed on the table from the hot water storage tank. The purpose is to provide a deflation device.

[Means for solving problems]

In the hot water storage type heat shrinkage device according to the present invention, one end of the table on which the workpiece is placed is rotatably supported by the lower end of the support arm, and the other part of the table is connected so as to be flexible. The table is rotatably supported at the lower end of a tilting drive arm consisting of a plurality of arms, and by raising and lowering the support arm and the tilting drive arm, the table in a horizontal position can be moved up and down in and out of the hot water tank. a first drive mechanism for moving the table; and a first drive mechanism for rotating the upper arm of the tilting drive arm to bend the tilting drive arm when the table is raised above the hot water storage tank, so that the table becomes a support arm. A second drive mechanism is provided which tilts the table using the connecting portion as a fulcrum and automatically discharges the workpiece on the table along the slope.

[Effect]

In the above means, the arm is raised by the first drive mechanism, and the table is lifted from the hot water tank together with the object to be processed. At this time, the upper arm of the tilt drive arm is rotated by the second drive mechanism, the tilt drive arm is bent, and the table is tilted. The workpiece is automatically discharged along the slope of the table without touching the workpiece on the table.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is an external perspective view of a hot water storage type heat shrinking device according to an embodiment of the present invention, Fig. 2 is a sectional view showing its internal structure from the side, Fig. 3 is a view showing the internal structure from the back, and Fig. 4. FIG. 2 is a perspective view showing a table lifting mechanism and a rotation drive mechanism.

This hot water storage type heat shrinking device is assembled based on a frame 1 made of angle materials (see Figures 2 and 3).As shown in Figure 1, the main body cover 2 is attached to the lower half, and the upper An upper cover 3 is attached to the half portion to cover the mechanism storage section and the like. An open/close cover 4 is attached to the front of the upper cover 3. This opening/closing cover 4 has a hinge 5 at its upper end.
It is supported by , and can be opened and closed upwards. Further, a window 6 and a handle 7 located below the window 6 are provided on the front surface of the opening/closing cover 4. A spring 8 is provided between the upper cover 3 and the opening/closing cover 4, and the force of the spring 8 maintains the opening/closing cover 4 in the closed state and the open state. A loading port A is opened on the right side of the upper cover 3 and the opening/closing cover 4, and a discharge port B is opened on the opposite side.
Auxiliary tables 9 and 10 are attached below each of the carry-in port A and the discharge port B. An operating section 11 is provided at the upper end of the device, an operating member 12 such as a switch is provided on the front side, and a pilot lamp 13 is provided on the side surface. Also,
Casters 14 are provided at the bottom of the main body.

Next, the internal structure will be explained.

A hot water tank 21 is installed inside the main body cover 2. An electric heater 22 is provided in the hot water storage tank 21 as a heating means. The water in the hot water tank 21 is heated by the heater 22. Further, a temperature sensor (not shown) is provided in the hot water storage tank 21 to maintain the temperature of the hot water at a constant value (for example, 80° C.).

Inside the upper case 3, there are 2 extending vertically in parallel.
A book guide shaft 31 is fixedly provided. This guide shaft 31 has a holder 3 having a sleeve 34 inside.
3 is inserted through the holder 33, and a slide base 32 is fixed to this holder 33. Moreover, an air cylinder 35 is installed inside the main body cover 2 as a lifting mechanism, and a rod 3 of this air cylinder 35 is installed.
6 connects to the slide base 32 via the bracket 37
is connected to the center of the This air cylinder 3
5, the slide base 32 moves up and down along the guide shaft 31.

A mounting plate 41 is fixed to the center of the front surface of the slide base 32. A holder 42 and a flange 43 are integrally formed in front of the mounting plate 41, and a small diameter support portion 44 is integrally provided in front of the flange 43. A shaft 45 is rotatably inserted into the mounting plate 41, holder 42, flange 43, and support portion 44. The upper end of a support arm 46 is fixed to the flange 43 with a bolt. Further, the upper end of a drive arm 47 is fixed to the tip of the shaft 45 that protrudes forward from the support portion 44 . Further, a discharge arm 49 is connected to the lower end of the drive arm 47 via a pin 48. The drive arm 47 and the discharge arm 49 constitute an arm for tilting drive. Furthermore, a cylinder arm 51 is fixed to the base end of the shaft 45, that is, the portion that projects rearward from the mounting plate 41. A rod 53 of an air cylinder 52 is connected to the tip of this cylinder arm 51. This air cylinder 52 is supported by a cylinder bracket 54 fixed to the slide base 32 (see FIG. 3).

A table 55 is supported at the lower end of the support arm 46 and the lower end of the discharge arm 49.
This table 55 includes a pair of support plates 56 and 57,
It consists of a plurality of rotatable rollers 58 supported between both support plates 56 and 57. Support plate 5
6 are provided with support projections 59 and 60, the lower end of the support arm 46 is rotatably connected to one of the support projections 59, and the lower end of the discharge arm 49 is rotatably connected to the other support projection 60.

Next, the operation of this embodiment will be explained.

The above hot water storage type heat shrinking device is suitable for raw meat, processed meat products,
It is installed and used on the packaging line for foods such as cheese. In the first step, raw meat and the like are vacuum packaged with a heat-shrinkable film (for example, a copolymer with vinyl chloride mainly composed of vinylidene chloride). After that, it is transported on a roller conveyor etc.
The hot water storage type heat shrinking apparatus according to the present invention is placed on the table 55 from the entrance A.

When the start switch of the hot water storage type heat shrinking device is operated, the air cylinder 35 for raising and lowering is started, the rod 36 extending to the state shown in FIGS. 2 to 4 is retreated, and the slide base 32 is lowered. The table 55, which is supported by the support arm 46, the drive arm 47 and the discharge arm 49 that constitute the tilt drive arm, descends together with the slide base 32 and enters the hot water storage tank 21. As a result, table 5
The object to be treated (No. 5) is immersed in hot water whose temperature is set in advance to about 80°C. The descending time of the table 55 is set by a timer or the like.
When this set time has elapsed, the rod 36 of the air cylinder 35 is extended, the slide base 32 is raised, and the table 55 is lifted above the hot water tank 21. While the object to be treated is immersed in the hot water,
The film that wraps the raw meat shrinks due to the heat, and the film clings to the raw meat.

When it is detected by a phototube, a limit switch, etc. that the table 55 has been lifted above the hot water tank 21, the air cylinder 52 for rotating the table is immediately started and the rod 53 is extended. As a result, the cylinder arm 51 rotates in the α direction shown in FIG. 4, and the shaft 45 is also rotationally driven in the same α direction.
Therefore, the drive arm 47 fixed to the shaft 45
rotates in the same direction α, and lifts up the table 55 via the ejection arm 49 connected to its lower end. That is, by driving the drive arm 47 in the α direction, the drive arm 47 and the discharge arm 4
9 is bent, and as a result, the table 55 pivots upward using the lower end of the support arm 46 as a fulcrum (indicated by arrow α), and the table 55 is tilted. Then, the object to be processed is moved along the slope of the table 55 by the roller 5.
8 and is automatically discharged from the discharge port B onto the auxiliary table 10.

In the illustrated embodiment, the air cylinder 35 constitutes an elevating mechanism for the table 55, and the air cylinder 52, cylinder arm 51, drive arm 47, etc. constitute a rotational drive mechanism for the table 55. As another example, a motor may be used as the drive source, and a transmission mechanism such as a sprocket and a chain may be used to configure the elevating and lowering mechanism and rotational drive mechanism of the table 55.

〔effect〕

As described above, according to the present invention, the following effects can be achieved.

(1) The table is rotatably supported, and when the table on which the workpiece is placed is lifted from the hot water tank by the driving force of the first drive mechanism,
The second drive mechanism tilts the table so that
The objects to be processed on the table are automatically discharged along the slope of the table. Therefore, the workability of the discharge work is greatly improved compared to the conventional method. Furthermore, since there is no need to directly touch the object to be processed after heat treatment, the safety of the work is improved.

(2) Since the object to be processed is automatically discharged after being lifted onto the hot water storage tank, there is no need to put your hands on the table after it is raised. Therefore, the top of the hot water storage tank can be covered with a cover 4 as shown in FIG. 1, and hot water will not be scattered to the surroundings, increasing safety.

(3) The table is supported and suspended by the lower ends of the support arm and the tilt drive arm. Therefore, by simply raising and lowering both arms, the table is moved upward from inside the hot water storage tank, and only the table, each arm, and the object to be treated are immersed in the hot water. Moreover, when the table is raised, the raised table can be tilted by bending the tilting drive arm itself that suspends the table. There is no need to connect the hot water tank to the hot water storage tank, and there is no need to insert other members into the hot water storage tank. In addition, since the tilting drive arm is bent by rotating the upper arm of the tilting drive arm, the drive mechanism for tilting the table is attached to the upper arm of the tilting drive arm. It is sufficient if they are installed consecutively. Therefore, the drive mechanism for tilting the table can be placed at a position upwardly away from the table and at a position where it is not affected by hot water or steam in the hot water storage tank.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is a perspective view of the external appearance of the hot water storage type heat shrinking device, Figure 2 is a sectional view showing the inside from the side, Figure 3 is a view showing the inside from the back, and Figure 4 shows the table lifting mechanism and rotation drive mechanism. FIG. 21... Hot water storage tank, 35... Lifting mechanism, 46...
Support arm, 47... Drive arm (upper arm of the arm for tilting drive), 49... Ejection arm (lower arm of the arm for tilting drive), 52...
Rotation drive mechanism, 55...table.

Claims (1)

[Scope of utility model registration request] One end of the table on which the workpiece is placed is rotatably supported by the lower end of the support arm, and the other part of the table is a tilting drive arm consisting of a plurality of arms connected in a flexible manner. The first table is rotatably supported at the lower end of the table, and moves the table in a horizontal position up and down in and out of the hot water storage tank by raising and lowering the support arm and the arm for tilting.
a drive mechanism, and when the table is raised above the hot water storage tank, the upper arm of the tilting drive arm is rotated and the tilting drive arm is bent to connect the table to the support arm. A hot water storage type heat shrinking apparatus is provided with a second drive mechanism that is tilted as a fulcrum and automatically discharges the workpiece on the table along the slope.