JP2002127137A - Apparatus for dehumidification and drying - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for dehumidification and drying of a material in a hopper by feeding dry air to the material stored in the hopper of a resin molding machine. SOLUTION: The apparatus for dehumidification and drying is characterized by being provided with the first blower 2 which sucks open air through a filter and feeds it to a heater unit 3 and feeds hot air heated by means of a heater arranged in the heater unit 3 to a regenerating zone in a dehumidification unit 4 and exhausts the hot air which absorbed moisture in the regenerating zone, the second blower 5 which sucks open air through the filter and feeds the air to a processing zone of the dehumidification unit 4 to perform dehumidification and sucks the dehumidified dry air through a flow path in the housing and exhausts it into a drying hopper and an electrically equipped unit which controls the first and the second blowers, the dehumidification unit and the heater unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying and drying apparatus suitable for supplying dry air to a material contained in a hopper of a resin molding machine to dry the material in the hopper.

[0002]

2. Description of the Related Art In a resin molding machine, it is necessary to appropriately dry a molding material, and various dehumidifying and drying apparatuses for such a resin molding machine have been developed. In this type of dehumidifying drying apparatus, the material to be dried is not always the same at the time of actual use, and depending on the type of the material, a high degree of drying is required or a very high degree of drying is not required There are cases like this. However, in practice, it is difficult to appropriately adjust the degree of drying of the material to be dried according to the type of the material, and there is a problem that the quality of the material is impaired due to overdrying of the material.

[0003] For this reason, as a dehumidifying and drying apparatus capable of controlling the degree of drying of a material, for example, an apparatus described in JP-A-7-163828 has been proposed. The configuration of a conventional dehumidifying / drying device described in this publication will be briefly described with reference to the drawings. FIG. 12 is a configuration diagram showing a state in which a hopper for storing and storing materials and a dehumidifying / drying device are combined.

In the figure, 101 is a hopper, 102a
Is an air supply path, 102b is a dehumidification air supply path, 102
c is a return path, 102d is a bypass pipe part, 103 is a honeycomb rotor type dehumidifying unit, 104 and 106 are blowers, 105 and 110 are filters, 111 is a cooling unit, 107 is a heater, 108a and 108b are control valves, Each device is connected by piping as shown.

The dehumidifying unit 103 is configured such that a cylindrical dehumidifying rotor 130 formed by arranging an adsorbent (hygroscopic agent) such as silica gel or synthetic zeolite (trade name: molecular sieve) in a honeycomb shape is rotatable by a motor or the like. It was done. The dehumidifying rotor 130 includes an adsorption zone N1 and a regeneration zone N2.
Is supplied from the blower 104 via the air supply path 102a, and the air is dehumidified. In the reproduction zone N2, the filter 105 and the blower 1
06 and the heated air supplied through the heater 107, the adsorbent that has absorbed moisture is subjected to a regeneration process.

In the dehumidifying and drying apparatus, the dehumidifying unit 1 dehumidifies the air sent from the blower 104.
The drying is performed in the adsorption zone N1 of 03, and the dried air is supplied to the drying hopper 101 that stores the material to be dried, and the material is dried. An air supply path 102a for guiding air to be dehumidified from the blower 104 to the dehumidification unit 103 has a bypass pipe portion 102d for bypassing a part of the air blown from the blower 104 to the dehumidification air supply path 102b. The amount of air bypassed to the dehumidification air supply path side and introduced into the dehumidification unit 103 are provided in at least one of the bypass pipe section 102d and the air supply path 102a. Flow control valves 108a and 108b for increasing and decreasing the amount of air to be supplied are provided.

In the dehumidifying / drying apparatus having the above-mentioned structure, a part of the air blown by the blower 104 can be introduced into the dehumidifying unit 103 to obtain dry air, while the remaining air is supplied to the bypass pipe section. By bypassing to the dehumidifying air supply path 102d via 102d, the air dehumidified by the dehumidifying unit 103 and the air passed through the bypass pipe 102d can be mixed and introduced into the drying hopper 101, The drying processing of the drying target material m is performed using this air. Therefore, the dehumidifying unit 103 does not need to be a large-sized dehumidifying unit having the ability to dehumidify the entire amount of air blown from the blower to a certain degree of dryness. Further, if the material to be dried does not require a very high degree of drying, appropriate drying treatment can be performed even with dry air in which two types of air are mixed as described above.

Further, the degree of drying of the drying air introduced into the drying hopper is adjusted by controlling the flow control valves 108a and 108b provided in at least one of the bypass pipe section 102d and the air supply path 102a. By increasing or decreasing the amount of air passing through the bypass pipe section 102d and the amount of air passing through the dehumidifying unit 103, the amount can be arbitrarily adjusted. That is, if the amount of air passing through the bypass pipe portion 102d is reduced and the ratio of the dehumidified air dehumidified by the dehumidifying unit 103 is increased, the drying air having a high degree of drying is introduced into the drying hopper 101 to be dried. The material can be processed to a high degree of dryness. Conversely, if the amount of air passing through the bypass pipe portion 102d is increased, the material to be dried can be processed to a state of a low degree of dryness. In this manner, the drying condition of the material to be dried is adjusted by the flow control valve 108.
It can be easily controlled by adjusting a and b.

[0009]

However, in the above conventional apparatus, the air blown out of the blower 104 is dehumidified by the dehumidification unit 103, and the dried air is supplied to the hopper 10.
1 and then return the air absorbed in the hopper to the blower 104 again, so that the piping path becomes complicated. In addition, the air blown from the blower 104 is supplied to the bypass pipe section 102d and the air supply path 102a while controlling the flow control valves 108a and 108b, and passes through the bypass pipe section 102d and the dehumidifying unit 103. Since the degree of drying of the air is controlled by increasing or decreasing the amount of air, the piping path becomes complicated in combination with the above-mentioned circulation system, and the apparatus becomes large.
Further, the air supply path 102a and the bypass pipe section 102d
Control valves 108a, 108b for controlling the amount of air passing through
In addition, a cooling device 111 for cooling air is required on the upstream side of the blower 104, which increases the number of parts and causes a cost increase. In addition, since a mechanism for controlling the degree of drying of the air supplied to the hopper by the control valves 108a and 108b is employed, it is troublesome to adjust the degree of drying of the drying air. In the case of attaching to a resin molding machine, there are various problems such as complicated piping is required and post-installation work is difficult.

Accordingly, the present invention provides a non-circulating type (open type) dehumidifying / drying device, as well as integrating the dehumidifying / drying device as a single unit in a movable frame, and furthermore, it can be easily applied to existing resin molding machines. An object of the present invention is to solve the above-mentioned problems by providing a dehumidifying and drying apparatus that can be retrofitted. In addition, the dehumidifying and drying device controls the amount of air blown by a fan that supplies dry air to the hopper by a valve or a fan rotation speed provided at a suction port of the fan. Provided is a dehumidifying / drying apparatus which can appropriately adjust the degree of drying so as to eliminate the need for a bypass pipe section as in the conventional apparatus. By devising a method of assembling each component in the dehumidifying / drying apparatus, the entire apparatus can be made compact, and a dehumidifying / drying apparatus with good maintainability can be provided.

[0011]

A dehumidifying / drying apparatus according to the present invention proposed to achieve the above object has a heater unit for heating air blown from a blower, and a dehumidifying apparatus for dehumidifying air by heated hot air. A dehumidifying unit to perform;
Dehumidification for a drying hopper in a resin molding machine including a blower for blowing dry air dehumidified by the dehumidification unit into a drying hopper for accommodating a material to be dried, and a housing housing and integrating them. A drying device, wherein the dehumidifying and drying device sucks outside air through a filter and sends it to a heater unit, and sends hot air heated by a heater arranged in the heater unit to a regeneration zone of the dehumidifying unit, Further, a first blower for discharging the hot air absorbed in the regeneration zone to the outside of the apparatus, and suctioning the outside air through the filter, supplying air to the processing zone of the dehumidifying unit to dehumidify the air, and drying the dehumidified dry air. A second blower that sucks through the flow path in the housing and discharges it to the drying hopper; and an electrical unit that controls the first and second blowers, the dehumidifying unit, and the heater unit. A dehumidifying and drying apparatus characterized by comprising and. Further, the dehumidifying and drying apparatus is characterized in that the inside of the heater unit is a high-pressure section and the flow direction of air is changed in the heater unit to easily generate turbulence. Further, the first blower is arranged at a lower part in the housing, the second blower is arranged at an upper part in the housing, and a motor for driving the second blower further includes a cooling fan for cooling the motor and the electrical unit. A dehumidifying and drying apparatus characterized by comprising: The heater unit is mounted on a frame so as to be movable upward, and the dehumidification unit is mounted so as to be able to be pulled out from the frame. Further, the second blower is provided in a suction port so that the flow rate can be adjusted by a valve.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which the dehumidifying / drying apparatus according to the present invention is assembled to a drying hopper. FIG. 2 is a perspective view showing an entire configuration of the dehumidifying / drying apparatus in which a part of an outer plate and a top plate are removed. FIG. 4 is a front view, and FIG. 4 is a rear perspective view of the dehumidifying / drying apparatus. First, the overall configuration and operation of the dehumidifying and drying apparatus will be described with reference to FIGS. 1 to 4, and then each component will be described with reference to a partial view.

In FIG. 1, K is a dehumidifying and drying apparatus according to the present embodiment, H is a drying hopper, and a drying air discharge duct of the dehumidifying and drying apparatus K is connected to a drying hopper (a container for storing a material to be dried) by a pipe P as shown in FIG. ) Connected to H,
Dry air is supplied into the drying hopper H to dry the material in the hopper H. The dehumidifying / drying device K is configured as an integral type incorporated in a housing as shown in the figure, and has a configuration that can be easily retrofitted to an existing device.

As shown in FIGS. 2 and 3, the dehumidifying and drying apparatus K has a first blower 2 for sucking outside air through a filter 1 and sending it to a heater unit 3, and an air blown from the first blower 2. , A dehumidifying unit 4 having a regeneration zone for removing humidity by high-temperature air, a treatment zone for adsorbing humidity in the air and drying the air, and air dried by the dehumidifying unit 4. A second blower 5 for sucking and supplying to the drying hopper H;
A motor 6 for driving the second blower 5 and for driving a motor cooling fan, an electrical unit 7 and a timer 8 for controlling devices in the dehumidifying and drying apparatus K are incorporated in a frame 9 as shown in the figure. . The necessary components are incorporated in the frame 9 in this manner, and integrated to constitute a movable and externally attachable dehumidifying and drying apparatus K.

As shown in FIG. 4, an outer plate 10 and a top plate 11 are mounted around the frame 9 to form a housing in which the inside of the frame 9 is airtight, and the inside of the housing is used as an air flow passage. You can do it. A filter 1 is attached to a lower portion of the frame 9, and the first blower 2 and the second blower 5 can suck outside air from the filter 1.

In the dehumidifying and drying apparatus K, the first blower 2
When the second blower 5, the heater unit 3, and the dehumidification unit 4 are operated, the first blower 2 sucks outside air through the filter 1 attached to the frame 9 in FIG.
Air is supplied to the heater unit 3 through the pipe 2b. The sent air is heated by the heater unit 3 to a high temperature, passes through the regeneration zone of the dehumidifying unit 4, dehumidifies the moisture in the rotor in the dehumidifying unit 4, and passes the high-humidity air to the pipe 1.
The air is discharged from the discharge duct 12 to the outside of the dehumidifying / drying device K through the discharge duct 5. Also, due to the suction force of the second blower 5, outside air flows into the housing via the filter 1, and this outside air passes through the processing zone of the dehumidifying unit 4 to become hot-air dry air,
It is sent from the second blower 5 to the above-mentioned drying hopper H via the flow path in the housing, and the material in the drying hopper H is dried. The amount of air supplied into the drying hopper H is the second
It can be easily adjusted by controlling a valve (not shown) provided at the suction port of the blower 5 or by controlling the rotation speed of the second blower 5 by the electrical unit 7. Unit 3 temperature, dehumidification unit 4
It can be easily adjusted by controlling the number of rotations of the rotors inside and controlling the amount of air blown from the first blower 2 and the like.

Next, each component of the dehumidifying and drying apparatus K will be described. FIG. 5 is a perspective view showing an assembled state of the first blower 2, the heater unit 3, and the dehumidifying unit 4, and FIG.
FIG. 3 is a perspective view of the assembly of the first blower 2. 5 and 6, the first blower 2 includes a drive motor (not shown), and the motor is fixed to the bottom plate 14 of the main body frame 9 by a bracket 13. The first blower 2 has a function of sucking outside air from the suction bell mouth 2a through the filter 1 attached to the frame 9 and blowing the air to the heater unit 3 described above. It is controlled by a control signal from the unit 7.

Adjacent to the first blower 2, a dehumidifying unit 4
A pipe 15 for connecting a regeneration zone (to be described later) with the discharge duct 12 is provided. The discharge duct 12 is configured below the bottom plate 14 of the frame 9 so as to use the bottom plate as a part of the wall surface, and the discharge direction is arranged so as to face the side opposite to the filter 1 provided on the frame 9. I have. This eliminates the inconvenience that the high-humidity air discharged from the discharge duct is sucked from the filter 1 side when the outside air is sucked by the first blower 2 or a second blower described later. In addition, since the humid air is discharged from the lowermost part of the dehumidifying and drying device K, the air can be discharged without giving any discomfort to the surrounding workers. The shape of the discharge duct 12 and the method of supporting the first blower 2 on the frame 9 can be appropriately changed as a matter of course. Further, by disposing the first blower 2 on the bottom plate 14 of the frame 9, the center of gravity of the dehumidifying and drying device K is lowered, and the stability of the housing is improved.

FIG. 7 is a sectional perspective view of the heater unit 3. The heater unit 3 includes a heater 3a and a heater box 3b that houses the heater 3a. The heater 3a is a multi-turn coil that is heated by energization, and the multi-turn coil is housed in a heater box 3b having heat insulation. The heater box 3b is vertically movably attached to the frame 9 by a fixing means such as a long hole 3c and a bolt (not shown). When the dehumidifying unit 4 described later is to be maintained, the bolt is loosened and the heater unit 3 is removed. It can be moved upward to facilitate the work.

An inlet 3d for taking in the air blown from the first blower 2 into the heater box 3b is formed on one side of the bottom of the heater box 3b, and a heating port is provided on the other side of the bottom of the heater box 3b. A discharge port 3e is formed for sending the discharged air to the regeneration zone of the dehumidifying unit 4. The cross-sectional area of the opening of the discharge port 3e is smaller than the cross-sectional area of the opening of the intake port 3d. As a result, the air sent into the heater box 3b is pressurized in the heater box 3b, heated by the heater 3a, and sent to the dehumidifying unit 4 from the outlet 3e. At this time, the air flow makes a U-turn in the 180-degree direction in the heater box 3b,
A turbulence is generated inside the heater box 3b due to the resistance caused by the increase in the pressure inside the heater box 3b, and the air is uniformly heated.

FIG. 8 is a perspective view of the dehumidifying unit 4. The dehumidifying unit 4 is configured as a dehumidifier using a honeycomb rotor.
A known material described in No. 8537 is used. As shown in FIG. 8, the dehumidifying unit has a rotor 4b that rotates by transmitting a rotating force from a rotating device 4a such as a geared motor by a belt 4f. The rotor 4b is made of a hygroscopic material, and the rotor 4b is circular. It is divided into a processing zone 4c and a reproduction zone 4d in the circumferential direction. The regeneration zone 4d has a function of dehumidifying the moisture of the rotor 4b by the hot air supplied from the heater unit 3 through the duct 4g, and the processing zone 4c removes the supplied external air humidity to make it dry air. Has a function. The dehumidifying unit 4 is mounted on a support plate 4e. The support plate 4e is mounted on a guide rail (not shown) provided on the frame 9 when the outer plate 10 is removed and fixing means (not shown) is removed. To the left in FIG. 3,
It is attached to the outside of the frame 9 so that it can be pulled out. Further, in the dehumidifying unit 4, a motor 4a for the rotor 4b is arranged below the support plate 4e as shown in FIG. This dehumidifier uses a conventionally known one,
Since it is not a feature of the present invention, further detailed description is omitted.

An outlet 3e of a heater box 3b is connected to a regeneration zone of the dehumidifying unit 4 by a duct 4g (see FIG. 5), and a regeneration zone 4d is connected to a pipe 15 (see FIGS. 2, 3, and 5). ) Is connected to the discharge duct 12 of the dehumidifying and drying apparatus K. Further, the processing zone 4c of the dehumidifying unit 4 is configured so that the outside air sucked through the filter 1 can pass through by the action of the suction force of the second blower 5. Therefore, in the dehumidifying unit 4, the hot air heated by the heater 3a is supplied to the regeneration zone 4d to dehumidify the moisture of the rotating rotor 4b. Discharge outside. In addition, outside air (dehumidified gas) is sucked through the filter 1 by the action of the second blower 5, passed through the processing zone 4 c of the rotating rotor 4 b, and released as dry air from the second blower 5. I have. When the suction force of the second blower 5 acts on the processing zone 4c, a uniform suction effect is exerted on the rotor surface. Further, the maintenance property of the dehumidifying unit 4 is improved by attaching the support plate 4e of the dehumidifying unit 4 so as to be able to be pulled out. further,
In the present dehumidifying unit 4, the motor 4a of the rotating device is disposed below the support plate 4e as shown in FIG.
The effect of cooling a can also be achieved. It should be noted that the above-described assembling method is merely an example, and it is needless to say that other configurations (fixation of the support plate, change of the mounting position of the motor of the rotating device, etc.) may be adopted according to the demand. Is also possible.

FIG. 9 is a perspective view of the second blower 5, the motor 6, the electrical unit 7, and the timer 8, FIG. 10 is a front view of the same part,
FIG. 11 is a plan view of the same part. These are arranged on the upper part of the housing of the dehumidifying and drying apparatus as shown in FIG. FIG.
In 11 to 11, a heat insulating partition plate 17 and a non-heat insulating partition plate 18 are erected on a support plate 16, and a biaxial motor 6 is disposed between the partition plates 17 and 18. I have. The reason why the partition plate 17 is insulated is to prevent the temperature of the dry hot air from acting on the motor 6. Partition plate 1
The second blower 5 is provided on one shaft of the double shaft motor protruding from
A cooling fan 19 is mounted on the other shaft, and a bell mouth 20 for improving the performance of the fan 19 is formed on the other partition plate 18 facing the fan 19. ing. The other partition plate 1
The right side of FIG. 8 is a space for disposing the electrical unit 7 and the timer 8, in which the electrical unit 7 for controlling the dehumidifying and drying device K is disposed, and further, the timer 8 is disposed. When the switch of the dehumidifying / drying device K is turned off, the first and second blowers 5 and the dehumidifier are used for a while after the power of the heater 3a is turned off so that heat does not remain in the heater box 3b when the switch of the dehumidifying / drying device K is turned off. The unit 4 has a function of performing a delay operation in which the power of those devices is turned off after a predetermined time has elapsed after the unit 4 has been operated.

The suction port 5a of the second blower 5 is open to a space S between the partition plate 17 and the outer plate 10 attached to the frame, and the space S between the partition plate 17 and the outer plate 10 is airtight. It communicates with the processing zone 4c of the dehumidifying unit 4 by a passage in the housing which also serves as a duct, and the discharge port 5b of the second blower 5 is connected to the drying hopper H by a pipe P as shown in FIG. I have. The cooling fan 19 sucks air from the bell mouth 20 formed on the partition plate 18 to cool the motor 6 and, at the same time, cool the electrical unit 7 by the generated air flow. The suction port of the second blower 5 is provided with a valve (not shown) for controlling the amount of air. The top plate 11 is removed and the valve is adjusted to adjust the amount of air sent to the drying hopper. it can. Note that the second blower 5 can also control the number of revolutions by a signal from the electrical unit 7 to control the air volume.

The operation of the dehumidifying and drying apparatus having the above configuration will be described. In this dehumidifying and drying apparatus K, the first blower 2 and the second
When the blower 5, the heater unit 3, and the dehumidifying unit 4 are operated, the first blower 2 sucks outside air through the filter 1 attached to the frame 9, and sends air to the heater unit 3 through the pipe 2b. The sent air is heated to a high temperature by the heater unit 3, passes through the regeneration zone of the dehumidifying unit 4, dehumidifies the moisture in the rotor in the dehumidifying unit 4, and removes the high-humidity air from the pipe 15 to the discharge duct 1.
2 to the outside of the dehumidifying and drying device K. Further, the suction force generated by the operation of the second blower acts on the processing zone 4c of the dehumidifying unit 4, and further this suction force acts on the filter 1. As a result, outside air (gas to be dehumidified) is sucked into the casing of the dehumidifying / drying device via the filter 1, and the sucked air is converted into dry air in the processing zone 4 c of the dehumidifying unit 4, and is sucked by the second blower 5. Discharge port 5b sucked by mouth
Is supplied to the drying hopper H (the container to be dried) to dry the material in the drying hopper H. The amount of air supplied into the drying hopper H is controlled by controlling a valve (not shown) provided at the suction port of the second blower 5 or
Can be easily adjusted by controlling the rotation speed of the electric unit 7, and the degree of drying of the air can be controlled by controlling the temperature of the heater unit 3, the rotation speed of the rotor in the dehumidifying unit 4, and the first blower 2. It can be easily adjusted by controlling the air blowing amount and the like. Also, the dehumidifying unit 4
The dried air that has flowed out is sent to the space S between the partition plate and the outer plate through a passage in the housing that also serves as a duct, so that a dedicated duct is not required and the number of parts is reduced. be able to.

The configuration of the dehumidifying / drying apparatus according to the present invention has been described above. However, the arrangement of each component can be arbitrarily changed at the time of design, and the inside of the housing is used instead of being used as a duct. May be provided. Further, the blower may have any function as long as it has a blower function, and is a concept irrespective of the type of the fan, the air pump, and the like. In addition, in the present invention, the specific type of the material to be dried is not limited to the synthetic resin pellet. Furthermore, since the present dehumidifying and drying apparatus is configured as a movable integrated drying apparatus, it can be used in various fields. Also, the present invention may be embodied in any other form without departing from its spirit or essential characteristics. Therefore, the above-described embodiment is merely an example in all aspects and should not be interpreted in a limited manner.

[0027]

As will be understood from the above description, according to the dehumidifying / drying apparatus K of the present invention, the dehumidifying / drying apparatus is of a non-circulating type (open type) and is provided in a movable housing. Since the apparatus is put together as one unit, a dehumidifying / drying apparatus that can be easily attached to an existing resin molding machine can be provided. In addition, since the amount of air blown by the blower that supplies dry air to the hopper is controlled by the number of rotations of a valve or a fan provided at the suction port of the blower, in actual use, the degree of dryness of the material to be dried is determined according to the type of material. It can be adjusted appropriately. In addition, the method of assembling the components in the dehumidifying / drying device is devised, so that the entire device can be made compact and the maintainability can be improved. Since the dehumidifying / drying device is housed in the housing, the appearance is improved, and the operation and wiring of the electric system are simplified.
Since the suction filter of the first fan and the second fan is shared, the number of parts can be reduced. Since the inside of the housing is used as a flow path of the dry air, it is possible to obtain an excellent effect such that an exclusive duct is not required.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a dehumidifying and drying apparatus according to the present invention is assembled to a drying hopper.

FIG. 2 is a perspective view of the entire configuration of the dehumidifying and drying apparatus with a part of a cover panel removed.

FIG. 3 is a front view of the same.

FIG. 4 is a rear perspective view of the dehumidifying and drying apparatus.

FIG. 5 is a perspective view showing an assembled state of the first blower 2, the heater unit 3, and the dehumidifying unit 4.

FIG. 6 is an assembled perspective view of the first blower 2;

FIG. 7 is a sectional perspective view of the heater unit 3;

FIG. 8 is a perspective view of the dehumidification unit 4.

FIG. 9 is an assembled perspective view of a second blower 5, a motor 6, an electrical unit 7, and a timer 8.

FIG. 10 is a front view of FIG. 9;

FIG. 11 is a plan view of FIG. 9;

FIG. 12 is a configuration diagram of a conventional dehumidifying and drying apparatus.

[Explanation of symbols]

 K dehumidifying and drying device H drying hopper P piping 1 filter 2 first blower 3 heater unit 4 dehumidifying unit 5 second dryer 6 motor 7 electrical unit 8 timer 9 frame 10 outer plate 11 top plate

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F26B 21/12 F26B 21/12 23/06 23/06 Z // B29K 101: 00 B29K 101: 00 (72 ) Inventor Akira Nakazato 2-499 Aioimachi, Kiryu-shi, Gunma F-term in Akaishi Metal Industry Co., Ltd. (reference) 3L113 AA01 AB04 AC08 AC25 AC29 AC44 AC45 AC52 AC67 AC78 AC83 BA02 BA04 CB05 CB17 CB24 CB35 DA04 DA13 DA14 DA16 DA17 DA22 4D052 AA10 CB00 DA03 DA06 DB01 DB04 GA01 GB01 HA01 HA03 HB02 4F201 AL06 AR14 BA04 BC02 BC12 BC15 BN05 BN26 BN50

Claims (5)

[Claims] 1. A heater unit for heating air blown from a blower, a dehumidifying unit for dehumidifying air by heated hot air, and a dehumidifying unit in a drying hopper for accommodating a material to be dried. A dehumidifying and drying device for a drying hopper in a resin molding machine including a blower that sends dry air and a housing that houses and integrates these components, wherein the dehumidifying and drying device removes outside air through a filter. A first blower that sucks and sends air to a heater unit, sends hot air heated by a heater arranged in the heater unit to a regeneration zone of the dehumidifying unit, and further discharges hot air absorbed in the regeneration zone to the outside of the device. When,
A second blower that sucks outside air through the filter, supplies air to the processing zone of the dehumidifying unit to dehumidify, sucks the dehumidified dry air through the flow path in the housing, and discharges the dried air to the drying hopper. A dehumidifying / drying apparatus comprising: the first and second blowers; a dehumidifying unit; and an electrical unit for controlling the heater unit. 2. The apparatus according to claim 1, wherein the inside of the heater unit has a high-pressure portion, and the direction of air flow in the heater unit is changed, so that turbulence is easily generated.
4. The dehumidifying / drying apparatus according to claim 1. 3. The motor according to claim 1, wherein the first blower is arranged at a lower portion in the housing, the second blower is arranged at an upper portion in the housing, and a motor for driving the second blower includes a motor and an electric unit. The dehumidifying / drying apparatus according to claim 1 or 2, further comprising a cooling fan that performs cooling. 4. The heater unit is mounted on a frame so as to be movable upward, and the dehumidifying unit further comprises:
The dehumidifying and drying apparatus according to any one of claims 1 to 3, wherein the dehumidifying and drying apparatus is attached so as to be able to be pulled out from the frame. 5. The dehumidifying and drying apparatus according to claim 1, wherein the second blower is provided at a suction port so that a flow rate can be adjusted by a valve.