JP7659725B2 - Horizontal vibration dryer - Google Patents

Description

The present invention relates to a small horizontal vibration dryer suitable for drying rare chemical substances (rare metals, pharmaceuticals, etc.) in the form of fine or ultrafine powders or samples in laboratories.
More specifically, the invention relates to a small horizontal vibration dryer that can be carried into a glove box or the like and products can be removed and processed.
Here, "fine powder or ultrafine powder" refers to particles having a particle size of "100 mesh (147 μm) or less" and "several μm or less" in the field of chemical engineering (see the "Crusher" section of "Dictionary of Chemical Engineering" compiled by the Chemical Engineering Society, published May 30, 1974 by Maruzen, p. 410).

With the recent active research and development of fine chemistry, there is a demand for a small vibration dryer with excellent handling of the container body (ease of putting in and taking out the material to be treated, cleaning, sanitation) (Patent Document 1, paragraph 0032). In particular, there is a demand for a small vibration dryer that allows the product in the treatment container removed from the vibration means to be carried into a glove box or the like and removed for treatment.
With the objective (objective) of responding to these demands (paragraph 0034 of the same document), the applicant of the present application proposed a small-sized vertical vibration dryer as described in the claims etc. of the same document.

The vertical vibration dryer disclosed in Patent Document 1 has been marketed by the applicant under product names such as "VU15 type" and "Mamekan VU type" and has become a hit.

The vibration dryer is a vertical type (VU type), and when the processing vessel is jacketed, the lid of the product inlet/outlet and the annular sealing member between the jacket are locked with a ferrule clamp (see Patent Document 1, FIG. 2, reference number 36). This ferrule clamp also serves as a clamp for attaching and detaching the processing vessel from the vibration means (specifically, the jacket body 32). Ferrules are widely used in the sanitary field because they allow easy removal of sealing members such as lids and prevent foreign matter from entering the vessel.

However, this ferrule clamp cannot also serve as a detachable locking structure for the processing vessel of the horizontal vibration dryer, because the ferrule clamp 24 of the product discharge port 22 of the horizontal processing vessel is located at one end in the longitudinal direction of the processing vessel 12 (see FIG. 3).

JP 2011-7368 A

For this reason, when attaching and detaching the processing vessel from the vibration means, a vibration table mounting base may be integrated into the bottom of the processing vessel, and the mounting base may be connected to the vibration table by screws or general-purpose spring clamps at multiple points on both sides of the longitudinal direction.
However, a strong connection and integrity is required between the mounting seat (treatment vessel) and the vibration table during vibration, and it is difficult to obtain such a strong connection and integrity with a general-purpose spring clamp. In addition, it is necessary to increase the number of screw connection points, and it is considered that the ease of attachment and detachment is also poor.
In view of the above, an object of the present invention is to provide a small-sized horizontal vibration dryer which can obtain a strong connection and integrity between a treatment vessel and a vibration table and which also has good operability in attachment and detachment.

Means for Solving the Problems The present inventors have made intensive efforts in development in order to solve the above problems, and as a result have come up with the idea of a small horizontal vibration dryer having the following configuration.

The present invention comprises a horizontal processing vessel and a vibration means for vibrating the processing vessel,
The processing vessel is detachable from the vibration means,
The vibration means is a small horizontal vibration dryer having a configuration including a vibration table, an oscillator integrated with a bottom side of the vibration table, and an elastic member supporting the vibration table and the oscillator on a stand,
The processing vessel is provided with one or more pairs of engaging claws formed on both sides of the bottom of the processing vessel and extending outward on both sides, a pair of receiving engaging strips formed on the upper surface of the vibration table corresponding to the engaging claws, a pair of clamping strips that engage and fasten the receiving engaging strips to the engaging claws from above and below, and a locking member that fixes the clamping strips in a locked position,
The respective cross sections of the engaging claw and the receiving engaging strip are combined to form a convex tapered cross section, and the clamp strip has a concave tapered cross section groove into which the convex tapered cross section can fit in a wedge-like manner.

In the above configuration, it is preferable that the locking member is configured such that one end is pulled around the bent portion of the "L"-shaped lever as an axis, and the other end rotates to advance the clamping strip, fitting the convex taper section into the concave taper section groove of the clamping strip, in order to reliably obtain a wedge action.

In each of the above configurations, it is preferable that the number of the engaging claws is two or more, that the upper surface of the clamp strip is formed with a cutout portion having a width into which the engaging claws can be inserted, and that the upper clamp portion is formed corresponding to the number of the engaging claws. This reduces the weight of the locking member and improves the ease of attaching and detaching the treatment vessel.

In each of the above configurations, it is preferable that the elastic member is formed as a hollow columnar body having one or more ring-shaped grooves on its circumferential surface, with the convex sides or open sides of the cup-shaped body joined together using two or more cup-shaped elements with a spring constant (Kz) of 40 to 80. The spring constant is smaller than other solid vibration-proof rubber, vibration transmission is good (excellent horizontal stability) and the vibration-proofing effect is large (relatively high vibration damping speed after operation is stopped and resonance is unlikely to occur), reducing the load on flexible members such as piping. This is thought to be because the elastic member is a hollow columnar body and has one or more ring-shaped grooves on its circumferential surface.

FIG. 2 is a vertical cross-sectional view (part of the cross-sectional view is omitted) of an example of a horizontal vibration dryer according to the present invention in an assembled state. FIG. 13 is a vertical cross-sectional view (part of the cross-sectional view is omitted) of the processing vessel in a state where it is removed from the vibration means. 3 is a perspective view of a main part of the processing vessel in FIG. 2 with piping and the like removed. FIG. FIG. 11 is a perspective view of a main part of the vibration means with the processing vessel removed.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

The small horizontal vibration dryer of the present invention basically includes a treatment vessel 12 and a vibration means (vibration motor 34) 14 for vibrating the treatment vessel 12. Here, the vibration motor 34 satisfies the operating conditions of, for example, a vibration frequency of 10 to 30 Hz and a total amplitude of 0.2 to 3 mm, preferably a vibration frequency of 10 to 25 Hz and an amplitude of 0.5 to 3 mm.

Here, a small horizontal vibration dryer refers to one in which the treatment vessel 12 has a weight and size that allows it to be handled in a glove box or the like, and is detachable from the vibration means 14. In quantitative terms, for example, the weight is about 20 kg or less, the treatment capacity is about 300 to 1750 cc, and preferably the weight is 10 to 15 kg, and the treatment capacity is 800 to 1300 cc.

The processing vessel 12 is usually equipped with a temperature control detector including a jacket 16 and a temperature detector 18, and is also equipped with an exhaust means 20. Note that the inlet and outlet of the temperature control medium, which is a component of the temperature control means, are omitted in the illustration. The jacket 16 is an integral type, unlike the configuration of Patent Document 1, and the processing vessel 12 cannot be removed from the jacket 16. The processing vessel 12 is also equipped with a raw material inlet 22 and a product outlet 24 at the center of the upper surface and one end in the longitudinal direction, respectively. The raw material inlet 22 and the product outlet 24 are locked by a first lid 26 and a second lid 28, respectively, with a first ferrule clamp 30 and a second ferrule clamp 31. This is because these lids can be easily attached and detached and the intrusion of foreign matter can be prevented as much as possible.

The vibration means 14 is composed of a vibration table 32, a vibration motor (oscillator) 34, a support frame 38, and an elastic member (vibration absorber) 40. A frame 36 constituting the vibration table 32 has a central channel portion 36a and inverted channel portions 36b on both sides of the central channel portion 36a. The vibration motor 34 is attached to the lower surface of the central channel portion 36a. In addition, elastic members 40 are interposed between the lower surface of the inverted channel portion 36b and the upper surfaces of the four support frames 38.

Here, the elastic member 40 is formed by using two or more cup-shaped elements with a spring constant (Kz) of 40 to 80 (preferably 50 to 70), with the convex sides or the open sides of the cup-shaped bodies joined together (for example, by screw means) as shown in Figures 1 and 2, to form a hollow column with one or more ring-shaped grooves on the circumferential surface. An example of the cup-shaped element here is the "Lightweight Vibration Isolation Rubber KQ Series" marketed by Kurashiki Kako Co., Ltd. The catalog for this vibration isolation rubber states that "1. The spring constant is small, making it suitable for vibration isolation of lightweight equipment, and is effective against continuous vibration and sudden impacts, 2. It has excellent horizontal stability."
That is, by configuring the elastic member 40 as described above, as described above, vibration transmission is good and the vibration isolation effect is relatively greater than that of a solid vibration isolation rubber, so that the load on flexible members such as piping can be reduced.

A general-purpose vibration motor is usually used as the vibration motor 34. For example, a motor that meets the vibration characteristics described above can be appropriately selected from the "Standard Uras Vibrator KEE Series" marketed by Uras Techno Co., Ltd.

In this embodiment, a first feature is that the attachment/detachment means between the processing vessel 12 and the vibration means 14 is as follows.

The detachment means basically comprises one or more engaging claws 42 formed on both side bottom portions of the treatment vessel 12 extending outward in both directions, a pair of receiving engaging strips 44 formed corresponding to the engaging claws 42 via a seat portion 45 on the upper surface of the central channel portion 36a of the frame 36, a pair of clamping strips 46 that engage and fasten the receiving engaging strips 44 to the engaging claws 42 from above and below, and a locking means 52 that advances the clamping strips 46.

The cross sections of the engagement pawl 42 and the receiving engagement thread 44 are combined to form a convex tapered cross section, and the clamp strip 46 has a concave tapered cross section groove 46c that fits into the convex tapered cross section like a wedge (large stop). In this way, the engagement pawl 42 and the receiving engagement thread 44 are firmly locked by the clamp strip 46 through the wedge action caused by the tapered fit. The taper size is usually 20/10 to 3/10, and preferably 12/10 to 5/10.

In the illustrated example, as shown in Figure 3, there are three engaging claws 42, and on the upper side of the clamp strip 46, as shown in Figure 4, two cutout portions 46a of a width into which each engaging claw 42 can be inserted are formed, and three upper clamp portions 46b corresponding to the number of engaging claws 42 are formed.

In addition, although not shown, it is preferable to roughen one or both of the upper surface of the seat portion 45 and the lower surface of the clamping strip 46 to prevent misalignment.

In the illustrated example, the locking means pulls the upper swing end of a pair of "L"-shaped levers 54 around the bent portion of the lever, and the lower swing end advances the clamp bar 46. Specifically, the "L"-shaped levers 54 are supported by a swing shaft 58 disposed between a pair of brackets 56 formed on both inner sides of the central channel portion 36a. The upper ends of the pair of levers 54 are connected by a drive beam 59, and the tip of a drive screw 60 is connected to the drive beam 59. The drive screw 60 is held between the reversing channel portions 36b, and an operating knob 62 is connected to the rear end (projection). In this way, the upper end of the lever 54 is pulled and can swing by pulling the drive beam 59 by the drive screw 60.

Next, a method of assembling the processing vessel 12 to the vibration table 32 in the above embodiment will be described.
With the treatment vessel 12 removed from the vibration table 32, the drive screw 60 is positioned at the front dead center, and the swinging lower part of the V-shaped lever 54 is retracted. In this state, the clamping strip 46 is set close to the outside of the seat 45 of the vibration table 32. Next, the engaging claw 42 of the treatment vessel 12 is inserted into the notch 46a of the clamping strip 46, and then shifted in the longitudinal direction so that the engaging claw 42 overlaps the receiving engaging strip 44.

In this state, the operating knob 62 is rotated to move the drive screw 60 backward and pull the swinging upper part of the lever 54. Then, the swinging lower part of the "L"-shaped lever 54 moves forward, and the convex tapered cross section formed by the engaging claw 42 and the receiving engaging strip 44 fits like a wedge into the concave tapered cross section groove 46 of the clamp strip 46, completing the clamp lock (Figure 1). This clamp lock is strong due to the wedge action caused by the tapered fit.

After the processing vessel 12 is assembled to the vibration table 32 in this manner, the raw materials are introduced through the raw material inlet 22, the raw materials are dried under appropriate conditions, and the processing vessel 12 is then removed from the vibration table in the reverse order of the assembly. Then, the second lid 28 (FIG. 3) of the product outlet 24 of the processing vessel 12 is removed, and the product outlet 24 of the processing vessel 12 is manually placed downward, allowing the product to be easily discharged, and the processing vessel 12 can be easily cleaned thereafter. The processing vessel 12 can also be used to discharge the product in a glove box or the like, and oxidation of the product can be prevented as much as possible.

12... Processing container,
14: Vibration means 16: Jacket 32: Vibration table 34: Oscillator (vibration motor)
40: Elastic member 42: Engagement claw 44: Receiving engagement strip 45: Seat 46: Clamp strip 52: Locking means 54: L-shaped lever 60: Driving screw 62: Operation knob

Claims (3)

The present invention comprises a horizontal processing vessel and a vibration means for vibrating the processing vessel,
The processing vessel is detachable from the vibration means,
The vibration means is a small horizontal vibration dryer having a configuration including a vibration table, an oscillator integrated into the bottom side of the vibration table, and an elastic member supporting the vibration table on a stand, and the detachment means between the treatment vessel and the vibration means includes one or more pairs of engaging claws formed on both sides of the bottom of the treatment vessel extending outward, a pair of receiving engaging strips formed on the upper surface of the vibration table corresponding to the engaging claws, a pair of clamping strips that engage and fasten the receiving engaging strips and the engaging claws from above and below, and a locking means for advancing the clamping strips, and further, each cross section of the engaging claws and the receiving engaging strips are overlapped to form a convex tapered cross section, and the clamping strips have a tapered groove with a concave tapered cross section into which the convex tapered cross section can be fitted like a wedge,
The locking means pulls one end of the "L"-shaped lever around the bent portion of the lever as an axis, causing the other end to rotate and move the clamp strip forward, so that the convex taper section fits into the concave taper section of the clamp strip.
A horizontal vibration dryer characterized by the above features. A horizontal vibrating dryer as described in claim 1, characterized in that the number of the engaging claws is two or more, a notch portion of a width allowing the engaging claws to pass through is formed on the upper surface of the clamp strip, and an upper clamp portion is formed corresponding to the number of the engaging claws. The horizontal vibrating dryer according to any one of claims 1 to 2, characterized in that the elastic member is formed of a hollow column having one or more ring-shaped grooves on its circumferential surface, the hollow column being connected to the convex sides or the open sides of two or more cup-shaped elements having a spring constant (Kz) of 40 to 80.

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