JPH0526140U - Stirrer lid structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an agitator lid that allows easy adjustment of the opening width of the agitator lid and is inexpensive and convenient for monitoring during operation and additional feeding of raw materials. A stirrer 1 having a housing 2 having an upper opening, a stirrer 5 for stirring contents in the housing 2, and a drive motor for driving the stirrer 5,
The lid of the opening is a frame body 9 having an axial rod 10 whose one end is rotatably supported between the opening edges 8 of the housing 2,
A lid structure for an agitator characterized in that the drive motor is stopped when the frame body 9 is separated upward from the opening edge 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a lid of an agitator.

[0002]

[Prior art and problems]

 For large agitators that agitate and mix powders and granules, the operating conditions of the agitating blades can be monitored while the agitating blades are rotating, and the agitated object can be taken out as a sample by putting a hand inside the housing, or even when cleaning. Since it is easier to rotate the stirring blade, it may be necessary to lean the body inside the housing and clean it while rotating the stirring blade.

For this reason, a casualty accident is often caused due to loss of balance and the involvement of a hand or a cleaning tool in the stirring blade. is doing. For this reason, the applicant has proposed a device for cleaning by driving an agitator blade with this auxiliary motor (actual fair 2-20035). Also, a rope is stretched over the housing opening. Has proposed a device that shuts off the drive motor of the stirring blade when a tension is applied to the blade (Japanese Patent Application No. 2126671).

However, in order to prevent accidents, the authorities regulate that the opening of the mixer in operation should not be opened more than a predetermined width (for example, 25 cm). Most of the agitator lids currently on the market in order to effectively clear this regulation are of the slide type or the double door type, which is relatively expensive, and is also expensive during operation and monitoring of raw materials. It was inconvenient to put in.

[0005]

[Means for solving problems]

 In view of the above points, the present invention intends to provide a lid for an agitator that is not only legal, but also inexpensive and convenient for monitoring during operation and inputting raw materials. In a stirrer having a housing having an opening, a stirring means for stirring contents in the housing, and a drive motor for driving the stirring means, the lid of the opening has one end rotated between the opening edges of the housing. A lid structure for an agitator, which is a frame body having a shaft rod that is pivotally supported so that the drive motor is stopped when the frame body rotates upward from an opening edge.

The present invention will be further described. The stirrer according to the present invention appropriately stirs and mixes contents such as liquids, powders and fluids. The stirrer has an upper opening and a housing inside the housing. It has a stirring means for stirring the contents and a drive motor for driving the stirring means. The stirring means is composed of a rotary shaft driven by a drive motor, a screw formed on the rotary shaft, and a coil-shaped rotary blade. The lid provided in the housing opening of the stirrer of the present invention is composed of a frame body composed of a frame material, and one end of the frame body is a shaft rotatably fixed between the housing opening edges. It is a rod. The other end of the frame is provided with a switch that opens and closes around the shaft rod, and opens the drive motor circuit when the end rod or the frame rotates upward and separates from the opening edge. This switch is, for example, a limit switch, and may be provided at any position as long as it can detect the upward movement of the frame.

The number of the frame bodies may be one, but when the agitator is large, two frame bodies having the inner shaft as the rod may be arranged symmetrically in the front and rear. In that case, two switches are provided for each end rod. In this case, these switches enter in series with the circuit of the drive motor. Both ends of the shaft rod and end rod are connected by a connecting rod, and usually have a rectangular shape. However, when the distance between the shaft rod and the end rod is large, one or more frame rods are connected to the shaft rod and the end rod. You can put them in parallel. However, the entire frame does not have to be larger than the opening, and a space may be provided between the opening edge and the end rod. Further, when the frame body is opened and opened, it is desirable to form a receiver for holding the state at the opening edge.

[0008]

[Action]

 Since the present invention is constructed as described above, the frame is opened with the shaft rod as the center, the object to be stirred is put in the housing, and then this is closed. Next, when the switch of the drive motor is turned on, the stirring means is driven and stirring is started. In this state, if the operator opens the frame for some reason, the motor circuit is opened and the drive motor stops. On the other hand, since there is only the frame in the opening, the stirring operation can be monitored as it is, and when adding the mixture, leave the frame as it is in the housing.

[0009]

【Example】

 The present invention will be described with reference to the drawings as an embodiment. 1 is a stirrer main body, 2 is a stirrer housing, 3 is a motor chamber containing a drive motor (not shown), and 4 is a rotation driven by the drive motor. Shafts 5 are rotary blades attached to the rotary shaft 4 via supports 6. Reference numeral 7 is an opening of the housing 2, and 8 is an opening edge thereof. Reference numeral 9 is a pair of frame bodies, 10 is a shaft rod of the frame body 9, and the shaft rods 10 are erected in a pair at the center of the opening edge 8 and erected by bending the tips inward. It is rotatably supported at the lower end of 11. Reference numeral 12 is an end rod connected to the shaft rod 10 via a joint rod 13. The end rod 12 rotates upward and engages with the bent portion of the receiving piece 11 to hold the open position. Reference numeral 14 denotes a limit switch, which closes the motor drive circuit when the entire frame 9 is at the opening edge 8 and rotates in the direction of the receiving piece 11 to open the circuit and stop the drive of the motor.

[0010]

【effect】

 As described above, the stirrer lid in the present invention is only a frame body to which a frame material is connected, and therefore it is lightweight, can be opened and closed easily, and can be manufactured at extremely low cost. When the drive motor is rotated in the upward direction, the drive energy is cut off, so that the safety of the operator is ensured. Since the distance between the rod, end rod and other frame materials can be easily adjusted, it can be easily cleared even if legal restrictions are imposed on the width of the stirrer opening. It is possible to easily monitor the agitated state inside while keeping it closed, and when adding a mixture, it is not necessary to open the frame each time, and it is possible to add it from between the frame members while keeping it closed.

[Brief description of drawings]

FIG. 1 Plan view of the stirrer

FIG. 2 Partial side view of the stirrer

[Explanation of sign]

1-Agitator body, 2-Agitation housing, 3-Motor chamber, 4-Rotating shaft, 5-Rotating blade, 7-Opening, 8-Opening edge, 9-Frame, 10-Shaft rod, 11-Receiving piece , 12-bar,
13-joint rod, 14-limit switch

Claims (2)

[Scope of utility model registration request] 1. A stirrer having a housing having an upper opening, stirring means for stirring contents in the housing, and a drive motor for driving the stirring means, wherein a lid of the opening has an opening at one end of the housing. A lid structure for an agitator, which is a frame body having a shaft rod rotatably supported between its edges, and in which the drive motor is stopped when the frame body rotates upward from an opening edge. 2. The frame body is provided with two front and rear,
A lid structure for an agitator according to claim 1, characterized in that the inside is an axial rod.