JPH01171658A - Crusher of syringe or the like - Google Patents

Abstract

PURPOSE:To surely perform crushing with small force and to make vibration and noise small at the time of crushing by fixing a plurality of flat blades to a rotary blade body engaged with a fixed blade while holding the intervals so that respective blades hold phase difference for the adjacent blades. CONSTITUTION:Respective blades 12 of flat blades 8 assembled to a rotary blade body 6 via a distance piece 9 are formed like a screw while holding the phase difference of prescribed angle for the adjacent blades 12. Therefore when the rotary blade body 6 is rotated by a motor 5, the blade 12 of a first flat blade 8a is engaged with the blade 19 of a fixed blade 18 and then the blades 12 of a second and third flat blades 8 are successively actuated so that they are engaged while shifting by one blade at a time. Thereby when introducing a material to be crushed such as a syringe from an introduction port, it is sent between the fixed blade 18 and the rotary blade body 16 and surely crushed with small crushing force by the blades 12, 19 engaged with each other while shifting so as to successively transfer to the axial direction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a crusher for disposable syringes made of glass, synthetic resin, etc.

[Conventional technology]

JP-A No. 62-176557 discloses a crusher for this purpose, in which shearing blades each having a plurality of uneven teeth in the axial direction are arranged at intervals in the circumferential direction on the outer circumferential surface of a rotating cylinder fitted on a rotating shaft. Multiple rows of blades are arranged, and the syringes, etc. are struck by engagement with the fixed blade.
An apparatus for shearing and crushing is disclosed.

[Problem that the invention seeks to solve]

However, in the above-mentioned known device, since the plurality of concave and convex teeth of each row of shearing blades mesh with the fixed blade at the same time, a strong crushing force is required, and the impact vibration and noise during crushing are large.
Furthermore, the machining of the shearing blade and fixed blade is complicated, resulting in high cost.

In view of the above-mentioned drawbacks of the known crushers, the present invention has been made to solve these problems. To obtain a robust crusher that can be easily assembled and processed at a reduced cost.

[Means for solving problems]

As a means to achieve this, the present invention comprises a rotary blade body which is disposed opposite to a comb-like fixed blade and is pivotally supported on a casing, and which comprises a plurality of flat blades and a plurality of distance pieces. The blades and the distance pieces are alternately fitted and fixed to the rotating shaft of the rotary blade body, the blades protruding from the outer periphery of the flat blades are disposed to mesh with the fixed blades, and the plurality of flat blades are The blades are arranged with a phase difference in the rotation direction with respect to adjacent flat blade blades, and the blade line of the flat blade is fixed so that the cutting edge and base of the flat blade do not mesh with the fixed blade at the same time. It is installed so that it intersects the cutting edge line of the blade.

〔Example〕

An embodiment of the present invention shown in the drawings will be described in detail below.

The casing 1 has an input port 2 at the upper end and a crushed material storage box 4 at the lower end.
A rotary shaft 7 rotatably driven by a motor 5 is mounted between the input port 2 and the discharge port 3, and a flat blade 8 and a distance piece 9 are mounted on the rotary shaft 7. A rotary blade body 6 is formed. The flat blade 8 has a plate-like shape, and has a fitting hole 10 for attaching a rotating shaft in the center thereof, and four key grooves 11a, 11b, llc, lid at an angle of 67.5 degrees. form. Further, four blades 12 are provided radially projecting in a cross shape at an angle of 90 degrees on the outer periphery. The distance piece 9 is formed into a short tube shape, and has one keyway 14 formed in a fitting hole 13 for attaching a rotating shaft. In order to form the rotary blade body 6, the rotary shaft 7
Flat blades 8 and distance pieces 9 of the same shape are alternately fitted to align the key grooves 15 formed on the rotating shaft 7 and the key grooves 14 of the distance piece 9, and the four flat blades 8 are The first flat blade 8a cuts the keyway 11a of Ml into the second flat blade 8a.
The flat blade 8b connects the second keyway 11b, the third flat blade 8c connects the third keyway 11c, the fourth flat blade 8d connects the fourth keyway lid, and the keyway 15 of the rotating shaft 6 The key 16 is inserted and fixed in the rotational direction so as to match these. As a result, the flat blades 8a, 8b, 8c, and 8d are uniformly arranged around the entire circumference with their blades 12 at a phase angle of 22.5 degrees, and are spaced apart from each other in the axial direction by the distance piece 9. It is assembled so that the blade 12 protrudes. On the other hand, on the inner wall of the casing 1 is a fixed blade mounting base 17.
protrudes diagonally downward. The fixed blade 18 is the rotary blade body 6
A blade 19 is formed in the shape of a comb blade to match the width of the flat blade 8 and the distance piece 9, and a long hole 20 is bored, and a bolt 21 inserted into the long hole 20 is attached to the fixed blade mounting base 17. A fixed blade 18 is placed on top, and the engagement with the rotary blade body 6 is adjusted and fixed. As a result, the blade line Y of the fixed blade 18 is attached at an inclination angle θ that intersects with the blade line X of the blade 12 of the flat blade 8, and there is a slight gap between the tip of the paternal side 12 and the bottom of the blade groove of the fixed blade 18. A gap S is formed, and blade surfaces 12a and 19a are formed on the side surface of the blade 12 and the side surface of the blade groove of the fixed blade 18, respectively, and these double-edged surfaces 12a.

19a is attached so as to be in sliding contact.

With this structure, each blade 12 of the flat blade 8 assembled to the rotary blade body 6 is 22.5 times smaller than the adjacent blade 12.
Since the rotary blade body 6 is formed like a screw with a phase difference of degrees, when the rotary blade body 6 is rotated by the motor 5, the blade 12 of the first flat blade 8a meshes with the blade 19 of the fixed blade 18, and then the blade 12 of the first flat blade 8a meshes with the blade 19 of the fixed blade 18. As the blade 12 of the 20 flat blade 8b meshes with the blade 19, the 30 flat blade 8c% is sequentially meshed with the fourth flat blade 8d, and then again like the blade 12 of the first flat blade 8a, shifting one blade at a time to mesh. When objects to be crushed, such as a syringe, are put into the input port 3, the objects are fed between the fixed blade 18 and the rotary blade 6, and are moved one after another in the axial direction. The blades 12 and 19 mesh with each other in a pinched manner so that crushing can be performed with a small crushing force. At that time, the object to be crushed is crushed by the cutting edge 12b of the blade 12, and the object is crushed by the blade surface 12a on the side and the blade 1.
It is sheared by the sliding contact of the side surface of the blade groove 9 with the blade surface 19m.

Furthermore, since the blade line X of the blade 12 and the blade MY of the fixed blade 18 intersect at an inclination angle θ, the blade 12 also pulls the material to be crushed from the blade edge 12b toward the blade base 12c as it rotates, ensuring a reliable Crush into pieces.

Although the flat blade 8 in the above embodiment has blades 12 protruding from four locations, the present invention is not limited to this.

Further, the number of flat blades 8 assembled to the rotary blade body 6 is not limited to four.

〔Effect of the invention〕

As described above in detail with respect to the embodiments, the present invention has a plurality of plate-shaped flat blades attached at intervals to a rotary blade body that meshes with a fixed blade, and each blade has a phase difference with an adjacent blade. Since the blades are installed and fixed, the blades do not mesh with the fixed blades at the same time as in conventional rotary blades, but instead mesh with the fixed blades one after another as they move in the axial direction, making it possible to crush objects with a small crushing force. Can be crushed. In addition, during this crushing, the object to be crushed is sheared by the blade surfaces formed on the side surface of the blade groove of the fixed blade and the side surface of the flat blade, and the object to be crushed is pulled from the edge of the blade of the blade to the base of the blade. They are brought together and shredded reliably, reducing shock and vibration and reducing noise. Furthermore, the multiple flat blades and distance pieces incorporated into the rotary blade body are all of the same shape.I01 Each flat blade can be assembled by freely changing the phase difference, so it can be applied to many models, and its processing is also conventional. Compared to the integrally shaped blade body, the crusher can be manufactured easily without the need for cutting or other molding operations, and a robust crusher can be obtained at low cost.

[Brief explanation of the drawing]

1 is a longitudinal sectional side view of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a sectional view taken along line BB in FIG. 2.

Claims (1)

[Scope of Claims] 1. A rotary blade body supported pivotally on a casing in opposition to a comb-shaped fixed blade is composed of a plurality of flat blades and a plurality of distance pieces, and the flat blades and the distance piece A machine for crushing injection containers, characterized in that the blades are alternately fitted and fixed onto the rotating shaft of a rotary blade body, and a blade protruding from the outer periphery of the flat blade is arranged so as to mesh with the fixed blade. 2. According to claim 1, wherein a plurality of flat blades fixed to the rotary blade body are arranged with a phase difference in the rotational direction with respect to adjacent flat blades. A crusher for syringes, etc. 3. A patent characterized in that the blade of the flat blade of the rotary blade body is mounted so that the blade line of the flat blade and the blade line of the fixed blade intersect so that the cutting edge and the blade base of the flat blade do not mesh with the fixed blade at the same time. A crusher for a syringe or the like according to claim 1 or 2.