KR20130104328A - Bag mixer - Google Patents

Abstract

PURPOSE: A bag mixer is provided to reduce vibration and noise by solving problems of traditional technologies, to control pulverizing time and speed according to the types of sample and to enhance the durability and uniformity of the manufactured samples. CONSTITUTION: A bag mixer comprises a motor; a pair of cams (30) including cam rollers (20) and can be rotated by the motor; a pair of moving links (40) with opening parts in which the cam rollers can be inserted and which converts the rotational exercise of the cam into linear reciprocation exercise by moving as arresting the cam rollers in the opening parts; a pair or pedals (60) which can perform linear reciprocation exercise when the cam performs rotational exercise by respectively connecting the moving links and two or more tie bars (50); a controller (70) which controls the speed of linear reciprocation of the pedal according to the types of samples or adjusts the speed and time of the linear reciprocation of the pedal; and a door part (80) which can be opened and closed and supports a bag if the pedal is hit.

Description

Bag Mixer {Bag Mixer}

The present invention relates to a bag mixer for preparing a sample for microbial detection by grinding and diluting a food or solid sample.

Microbiological testing typically involves collection, dilution, mixing, and detection steps. The bag mixer is a device used in the mixing step, and is a device for grinding and mixing the food or solid sample contained in the sterilization bag into small pieces. It is a kind of homogenizer, that is, a homogenizer, in that it is a device for homogenizing a sample contained in a sterile bag, also called a stomacher. There are two types of bag mixers, a roller method and a paddle method, depending on how the samples are mixed. Among them, the paddle type bag mixer finely crushes the sample by hitting the sterile plastic bag containing the food or solid sample through the paddle. Through this, the particle size of the sample is reduced, and the particle shape and viscosity are also uniformed so that a soft structure can be obtained and the material inside can be taken out. Bag mixers have been used mainly for microbial analysis of foods and have been used to grind and mix raw materials in the manufacturing process of other cosmetics.

U. S. Patent No. 6,39759 discloses a material mixing device using a paddle. The mixing device is provided with a carrier support, a bag containing the material to be mixed, a paddle that strikes the wall of the bag to homogenize the material, and the like. EP-0968760A1 also discloses a mixer 1 comprising a support 8 for supporting the bag 16 and a movable paddle 13, 15 as a mixer for preparing analytical and / or test samples (FIG. 1). However, all of the conventional bag mixers have a problem that it is difficult to control the grinding time and speed as well as a lot of noise during the grinding movement using the paddle.

The present invention is to reduce the vibration and noise by solving the problems of the prior art, it is possible to adjust the grinding time and speed according to the type of the sample and to improve the uniformity of the prepared sample as well as to provide a durable back mixer For the purpose of

The present invention to achieve the object of the present invention

motor,

A pair of cams can be rotated by the motor, and provided with a cam roller,

A pair of moving links having an opening into which the cam roller can be inserted, the cam roller being constrained and moving in the opening to convert the rotational movement of the cam into a linear reciprocating motion,

A pair of paddles connected to each of the moving links and two or more connecting bars, respectively, to perform linear reciprocating motion when the cam rotates;

A controller capable of adjusting the linear reciprocating speed of the paddle, or adjusting the linear reciprocating speed and time of the paddle,

Door part that can be opened and closed and can support a bag when hitting the paddle

/ RTI >

Attaching a sample containing bag that can strike with the paddle,

A bag mixer for sample mixing is provided.

The back mixer of the present invention is connected to a cam roller and a paddle provided in the cam by a moving link having an opening, and the moving link can be converted into a linear reciprocating motion of the paddle by the moving link. Vibration can be reduced.

In addition, the bag mixer of the present invention can adjust the linear reciprocating speed of the paddle, or because it has a controller that can adjust the linear reciprocating speed and time of the paddle, it is possible to adjust the grinding speed and time.

In addition, the bag mixer of the present invention can be reduced by vibration and noise because the paddle and the moving link is connected by two or more connecting bars 50 can improve the uniformity of the sample and excellent durability.

1 shows a bag mixer according to the prior art.
2 shows a bag mixer according to one embodiment of the present invention.
3A and 3B show an interior excluding a housing as a bag mixer according to an embodiment of the present invention.
4 shows an internal side view of a bag mixer according to one embodiment of the present invention.
5A and 5B show an internal plan view of a bag mixer driving in accordance with one embodiment of the present invention.
6 illustrates a state in which the door part of the bag mixer according to the embodiment of the present invention is opened.

The bag mixer of the present invention

motor,

A pair of cams can be rotated by the motor, and provided with a cam roller,

A pair of moving links having an opening into which the cam roller can be inserted, the cam roller being constrained and moving in the opening to convert the rotational movement of the cam into a linear reciprocating motion,

A pair of paddles connected to each of the moving links and two or more connecting bars, respectively, to perform linear reciprocating motion when the cam rotates;

A controller capable of adjusting the linear reciprocating speed of the paddle, or adjusting the linear reciprocating speed and time of the paddle,

It is openable and includes a door part for supporting a bag when the paddle is hit,

A sample containing bag can be attached which can strike the paddle.

Hereinafter, a detailed configuration of a bag mixer according to an embodiment of the present invention will be described with reference to the accompanying drawings.

2 shows a bag mixer 100 according to one embodiment of the invention. 3A and 3B show the interior of the bag mixer 100, excluding the housing, in accordance with one embodiment of the present invention. 4 shows a side view of the interior of a bag mixer 100 according to one embodiment of the invention.

As shown in FIGS. 2, 3, and 4, the bag mixer 100 includes a motor 10, a cam 30 having a cam roller 20, a moving link 40, and a paddle connected to the connecting bar 50. 60), a controller 70, a door portion 80, and a bag (not shown). The bag mixer 100 may also include a regulator 90.

The motor 10 is a means for providing power.

The cam 30 may rotate in the 90 ° direction and the rotational direction of the drive shaft of the motor 10 by the power provided by the motor 10. The motor 10 and the cam 30 may be connected by connecting means to make the rotational direction of each other 90 degrees. For example, it may be connected by a worm & wheel gear or a bevel gear. Cam 30 is a pair of left and right, each having a cam roller 20.

The moving link 40 is a kind of cam block provided with an opening. The cam roller 20 of the cam 30 can be inserted into this opening. When power is provided by the motor 10, the cam 30 is rotated and the cam roller 20 provided in the cam 30 is constrained and moved in the opening of the moving link 40. Accordingly, the rotational motion of the cam 30 can be converted into a linear reciprocating motion. Like the cam 30, the moving link 40 is also a pair of right and left. The bag mixer 100 of the present invention can reduce vibration and noise since the conversion from the rotational movement to the linear reciprocating motion is made by the moving link 40. This is because the conversion from the rotational movement by the cam 30 to the linear reciprocating motion is made in a state of being restrained by the moving link 40, thereby reducing the left and right shake. In particular, when the upper and lower portions of the opening are round, vibration and noise can be significantly reduced.

Paddle 60 is composed of a pair of left and right, is connected to the moving link 40 through two or more connecting bars (50). Paddle 60 is arranged to strike the bag. In the case of two or more paddles, each paddle is arranged to strike different positions of the bag. When power is supplied by the motor 10, the cam 30 rotates, and thus the cam roller 20 moves along the opening of the moving link 40, thereby connecting the connecting bar 40 to the moving link 40 ( 50) makes a linear reciprocating movement. The paddle 60 is connected to one end of the connection bar 50, so that the paddle 60 also has a linear reciprocating motion. The paddle 60 making a linear reciprocating motion strikes the bag where the sample is stored. Conventionally, since there is one connection bar 50 connected to each paddle 60, not only uniformity of dispersion is reduced, but power transmission is insufficient, and durability is also low, but the back mixer 100 of the present invention is connected to a connection bar ( This problem can be solved by providing more than 50).

The controller 70 is a means for adjusting the linear reciprocating speed of the paddle 60, or the linear reciprocating speed and time of the paddle 60. Since it is necessary to adjust the linear reciprocating speed and time of the paddle according to the sample to be homogenized, it is possible to adjust the strength and weakness by adjusting the speed and time according to the sample using the controller 70. For example, by calculating the amount of current used when the paddle 60 hits the wall surface of the door 80, the speed and time can be automatically adjusted by artificial intelligence. In addition, by adjusting the amount of current according to the pressing force, the linear reciprocating speed can be adjusted to make the hard sample strong and the soft sample weak. It is preferable that the controller 70 can automatically adjust the linear reciprocating speed for each sample by periodically feeding back the linear reciprocating speed and time.

The door part 80 is a part that can be opened and closed so that the sample bag can be put into the bag mixer 100 or discharged from the bag mixer. It may also serve as a support for supporting the bag when paddle 60 strikes the bag. The door unit 80 may include a hook or a cradle for mounting the bag. This is desirable in that the tester does not have to hold the bag by hand while operating the bag mixer. In addition, the door unit 80 may be opened and closed by rotating about its one end by a lever, a button, or a dial. When the door unit 80 is opened, the bag containing the sample may be put into the bag mixer 100. Preferably, the door unit 80 may include a transparent window that can see the inside from the outside. This is because the degree of pulverization and mixing of the sample can be observed from the outside.

The adjuster 90 may adjust the gap between the paddle 60 and the door part 80. That is, the distance between the paddle 60 and the door part 80 may be adjusted according to the degree of rotating the adjuster 90. The controller 90 is useful in that the number of microorganisms in the sample can be adjusted by setting an appropriate interval according to the type of the sample. For example, in the case of a meat sample, when the distance between the paddle 60 and the door portion 80 is adjusted from 2 cm to 1 cm, the number of microorganisms may increase by 5 to 10 times.

The bag mixer 100 may include an indicator showing a gap between the paddle 60 and the door unit 80. The indicator may be provided on the top or side of the bag mixer 100. By checking the gap between the paddle 60 and the door unit 80 through the indicator to adjust the controller 90 can be set to a suitable interval according to the type of sample.

A bag is a container for storing and storing samples. It is usually made of plastic. The bag is subjected to a strike by the linear reciprocating motion of the paddle 60. When the bag is hit by the paddle 60, the door part 80 serves as a support plate. Therefore, the door portion 80 must be durable. The bag can be hung in the center of the entrance of the door 80.

5A and 5B show an internal plan view of a state in which the bag mixer 100 is driven according to an embodiment of the present invention.

When power is transmitted through the motor 10, the cam roller 20 provided in the cam 30 is constrained and moved by the moving link 40, and the cam roller 20 is fastened by the rotational movement of the cam 30. The moving link 40 is converted into a linear reciprocating motion so that one end of the connecting bar 50 is connected to the moving link 40 and the paddle 60 connected to the other end of the connecting bar 50 is linear reciprocating motion. do. Therefore, as in FIG. 5A, when one paddle 60 (lower paddle of FIG. 5A) advances and hits the bag, the other paddle 60 (upper paddle of FIG. 5A) is reversed, and then FIG. 5B. The paddle 60 (bottom paddle of FIG. 5b) that has finished the hitting as in the back is reversed and the paddle (upper paddle of FIG. 5b) that has been retracted to hit the bag. As this operation is repeated, the bag (not shown in FIG. 5) in contact with both paddles is continuously blown, thereby crushing and mixing the samples contained in the bag.

6 illustrates a state in which the door part 80 of the bag mixer 100 according to an embodiment of the present invention is opened. The bag mixer 100 of FIG. 6 is a bag mixer 100 in which the door unit 90 is opened and closed by a lever.

The bag mixer 100 is generally in the form of a box. The bag mixer 100 may include a housing that may enclose the interior thereof and may have a drain therein, particularly at the bottom.

10: driving means
20: Cam Roller
30: cam
40: moving link
50: connecting bar
60: paddle
70: controller
80: door part
90: adjuster

Claims (9)

motor,
A pair of cams can be rotated by the motor, and provided with a cam roller,
A pair of moving links having an opening into which the cam roller can be inserted, the cam roller being constrained and moving in the opening to convert the rotational movement of the cam into a linear reciprocating motion,
A pair of paddles connected to each of the moving links and two or more connecting bars, respectively, to perform linear reciprocating motion when the cam rotates;
A controller for adjusting the linear reciprocating speed of the paddle or the linear reciprocating speed and time of the paddle according to the type of sample,
Door part that can be opened and closed and can support a bag when hitting the paddle
Including;
To attach a sample containing bag that can strike with the paddle
Bag mixer for sample mixing. The bag mixer according to claim 1, wherein the door part includes a hook or a holder for mounting the bag. The bag mixer of claim 1, wherein the door part is opened and closed by a lever, a button, or a dial. The bag mixer of claim 1, further comprising an adjuster for adjusting a distance between the paddle and the door part. The bag mixer of claim 1, wherein the openings of the moving links are rounded at upper and lower portions thereof. The bag mixer of claim 1, wherein the controller is configured to periodically feedback the linear reciprocating speed and time to automatically adjust the linear reciprocating speed. The bag mixer according to claim 1, wherein each moving link and each paddle are connected through two connecting bars. The bag mixer of claim 1, wherein the door portion comprises a transparent window. The bag mixer of claim 1, further comprising an indicator indicative of a gap between the paddle and the door portion.

Images