JPH022440Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention, Field of Industrial Application] The present invention relates to a control device for a crusher for crushing syringes, injection needles, drip needles, etc.

[Conventional equipment and its problems]

In the past, syringes were mainly made of glass, but recently disposable syringes made of plastic are increasingly being used.

This syringe has the advantage that it does not need to be sterilized each time, and there is no risk of bacterial infection through repeated use.

However, on the other hand, used syringes need to be immediately rendered unusable. In other words, the method of disposing of syringes has become a problem because a careless disposal method may lead to problems such as encouraging illegal or inappropriate reuse and promoting the spread of stimulants, for example. Furthermore, a method that can be operated as simply as possible during processing has been desired. This also applies when discarding a needle used for a glass syringe or a needle used for an intravenous drip.

[Purpose of this invention]

The purpose of this invention is to make it possible to quickly dispose of used syringes so that they are no longer usable, to avoid any inconvenience that may encourage unwarranted reuse, and to make the operation of the machine simpler and less troublesome. The goal is to avoid this.

[Structure of the present invention]

The structure of the present invention taken to achieve the above object is as follows. That is, the present invention consists of a feeding chute, a feeding roller arranged sequentially below the feeding chute, a compression roller that compresses the syringe etc. so that it can be easily cut, a cutting roller that cuts the syringe etc., and a syringe fed from the cutting roller. In a crusher such as a syringe equipped with all or part of a crushing device for crushing materials, etc.: - A group of switches that operate the motors that drive each device of the crusher and rotate forward or reverse by switching; A first relay circuit that is energized and self-maintained by the operation of the starting circuit, and selects and operates the switch group in the forward rotation side; starts clocking by the operation signal of the first relay circuit, and after a predetermined period of time has elapsed. A timer circuit that outputs a time-limited output and opens the first relay circuit directly or via a second relay circuit; A reversing switch circuit that selects the switch group to the reverse side and operates it; When automatic operation is selected, the switch goes to the closing chute A recording circuit is formed by the detection means for detecting the input of the material to be crushed, and when continuous operation is selected, a starting circuit is formed by operating a continuous operation start switch, and when automatic operation is selected, the first an automatic/continuous changeover switch circuit that forms a disconnection circuit that opens the relay circuit of the relay circuit and prevents the formation of the disconnection circuit when continuous operation is selected; a stop switch circuit that opens each operating circuit of the switch group; This is a control device for a crusher such as a syringe equipped with a Further, in the above, the charging detection means is a switch that is linked to opening and closing of the lid of the charging chute, or the charging detection stage is a sensor provided on the material conveyance path.

In the above, the syringe, injection needle, drip needle, etc. put into the hopper are sent to the compression roller by the feeding roller, and as they pass through the compression roller, they are compressed and sent to the next cutting roller.

The cutting roller cuts the syringe, injection needle, drip needle, etc., but some parts remain uncut. Both the cut pieces and the uncut pieces are sent to a crusher, where they are crushed and separated and disposed of.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. Fifth
The figure is a perspective view of the entire device showing an embodiment of the present invention.
Figures to Figure 8 show examples of the mechanical device section,
FIG. 6 is a front view thereof, FIG. 7 is a cross-sectional view taken from FIG. 7, and FIG. 8 is an explanatory diagram of the shape of the feed roller.
In Figure 5, C is a case that covers the entire device, and Z is a case that covers the entire device.
20 is a base frame that supports the internal mechanism and the case C; 4 is a caster attached to the bottom of the base frame 20; 5 is an operation panel provided on the surface of the case C; 6 is a base frame that supports the internal mechanism and the case C; For example, the electric control unit 7 attached to the base frame 20 via the support frame 60 is a chute cover for putting the material to be crushed, and a lid 71 is attached to the input opening of the chute cover so as to be openable and closable. 8
is a loading detection sensor, which in this case has a built-in switch interlocked with the lid 71. 9 is a disinfectant tank stored in a recess provided in case C. 6th
In the figures to FIG. 8, the mechanical device section Z is a syringe,
It includes a cutting section 1 that compresses and cuts injection needles, drip needles, etc. so that they can be easily crushed, and a crushing section 2 that crushes syringes.

Cutting Section Side plates 11 and 11a are erected at the upper part of the base frame 20, which is a metal frame body, at a required interval. A charging chute 19 is installed at the top of the side plates 11, 11a. The input chute 19 is located directly below the input port of the chute cover 7. The input chute 19 is equipped with a sprayer 4 (not shown), which can spray a required amount of disinfectant (such as a mixture of sterilizing, deodorizing, and anticorrosive agents) into the syringe. and 3 below the input chute 19.
The pair of rollers are bearing members 12, 12a, 13, 1
3a, it is pivotally supported by the side plates 11, 11a.

The upper stage is the feed roller 14, which is made up of rollers 141 and 142 arranged in parallel, each of which has a continuous circumferential groove 158 formed therein. Further, the rollers 141 and 142 are eccentric, and the gap between the rollers 141 and 142 changes during rotation. Although the rollers 141 and 142 are formed with hook grooves 143 evenly distributed at four locations in the axial direction, the number of hook grooves 143 is arbitrary.

The middle stage is a compression roller 15, and bearing members 13, 13
It consists of rollers 151 and 152 that are pivotally supported on the upper stage of a.

A circumferential groove 158 is continuously formed in the rollers 151 and 152, and hook grooves 143 are formed in four locations evenly distributed in the axial direction. roller 1
The gap between 51 and 152 is narrowed so that the syringe can be compressed and subsequent cutting can be performed smoothly.

Note that the relationship between the circumferential groove 158 and the convex portion 159 of the rollers 151 and 152 is such that they are opposed to each other, as shown in FIG. (The same applies to rollers 141 and 142). According to this, the syringe or the like is placed vertically by the opposing circumferential grooves 158 and sent to the next cutting roller 16, so that many cutting points can be obtained and sufficient cutting can be performed.

The lower stage is the cutting roller 16, and the bearing members 13, 13
Rollers 161, 1 that are pivotally supported and arranged in parallel on the lower stage of a
It consists of 62. One roller 161 is a roll with a smooth surface. The other roller 162 has an arbitrary number of cutting blades 163 formed on its outer periphery. The gap between the tip of the cutting blade 163 and the outer periphery of the roller 161 is small.

A gear 169 is attached to the shaft end of the roller 162, and a low-speed motor M1 is installed at the top of the base frame 20.
is driven by a drive gear 170. Each roller 1
41,142,151,152,161,162
are rotated in opposite directions by a transmission mechanism G consisting of a series of gears.

A lower chute 17 communicating with the crushing section 2 is installed below the cutting roller 16.

Crushing Section An installation stand 21 is provided in the middle part of the base frame 20. A low-speed motor M2 is installed on the installation stand 21,
A crushing device 22 is adjacent. Casters 4 are attached to the bottom of the base 20.

The crushing device 22 includes a drum body 23 placed horizontally,
The rotating body 25 is arranged at the center of the drum body 23 and has a required number of crushing blades 24. A lower chute 1 is installed on the upper part of the drum body 23.
An inlet 26 communicating with 7 is provided. Further, a discharge port 27 is provided at the lower part of the drum body 23, and the discharge port 27 is provided with a grid-shaped fixed blade 28. The inner wall of the drum body 23 is slightly larger than the rotation locus of the cutting edge of the crushing blade 24, and has a shape that does not make contact with it.

Then, the rotating body 25 is connected to the gear 20 by the motor M2.
1,202. In addition, the discharge port 2
A receptacle 3 that can be pulled out is installed below 7.

Function of mechanical parts The operation of the mechanical device portion of this embodiment will be explained.

(1) Activate the motors M ₁ and M ₂ and insert the syringe into the injection chute 19 with the needle still attached.

In addition, when only the injection needle is to be crushed, a injection needle chute with a small discharge port is arranged inside the input chute 19 so that the injection needle can stand up and fall easily.

(2) The inserted syringe is moved to the lower compression roller 1 by the feed roller 14 which swings and rotates due to eccentricity.
Sent to 5. A small syringe can be wedged directly into the next compression roller, but a large syringe cannot be wedged directly into the compression roller. Therefore, by the swinging rotation of the feed roller 14, the large syringe is compressed to the same thickness as the small syringe and sent to the compression roller.

(3) The syringe is compressed by the compression roller 15, deformed so that it can be easily cut, and then transferred to the lower cutting roller 1.
Sent to 6.

(4) The sent syringe is cut by the cutting roller 16 and passed through the lower chute 17 to the crushing device 22.
sent to.

(5) When the cut syringe is sent by the crushing blade 24 and falls from the outlet 27, the crushing blade 24
and the fixed blade 28, and are crushed, cut into smaller pieces, and stored in the receiving box 3. The contents are then disposed of or incinerated.

1 to 4 mainly show the electrical equipment section of an embodiment of the present invention, FIG. 1 is an electrical circuit diagram, FIG. 2 is an electrical circuit diagram showing another embodiment, and FIG. 3 is an electrical circuit diagram showing another embodiment.
The figure shows the layout of the operation panel, and FIG. 4 shows the layout of the electric control section. Equivalent or corresponding parts in the figures are indicated by the same reference numerals.

In Figure 1, P ₀₁ and P ₀₂ are power supply terminals,
The power is drawn out from the terminals P ₀₁ and P ₀₂ to the power terminals P ₁ and P ₂ via the power switch SW ₁ . Ammeter A from terminals P ₁ and P ₂ ,
Through the thermal relay Th (here only the heater is shown), the electromagnetic switches K ₁ , K ₂ ,
Connect to the power supply side terminals R ₁ , T ₁ ; R ₂ , T ₂ ; R ₃ , T ₃ of K ₃ . Connect the load terminals of switches K ₁ , K ₂ , K ₃ to U ₁ ,
W ₁ ; U ₂ , W ₂ , U ₃ , W ₃ , connect U ₁ , W ₁ to the winding terminals X ₁ , Y ₁ of the motor M, and connect them to the other winding terminals X ₂ ,
Connect U ₂ , W ₂ ; U ₃ , W ₃ to Y ₂ , respectively. One or more motors M are used depending on the mechanical configuration of the crusher, and in this case, two motors M ₁ and M ₂ are connected in the same way and are interlocked. Switches K ₁ , K ₂ , and K ₃ are for operation, forward rotation, and reverse rotation, respectively, and K ₁ and K 3 are used for forward rotation.
K ₂ , and when reversed, it becomes a combination of K ₁ and K ₃ . Forward rotation is used for crushing, and reverse rotation is for inching and is used for removing clogs and cleaning inside the machine.

Connect power indicator L ₁ between terminals P ₁ and P ₂ . An operation indicator light _L2 is connected between the terminals _P1 and _P2 via the normally closed auxiliary contact k1 _- a of the switch _K1 . Terminal P ₁ passes through stop push button switch SW ₂ Terminal P ₃ connects to crushing material input detection switch SW ₃ , terminal P ₈ , auxiliary relay Ry ₃
Connect to terminal _P2 via. Common terminal 1c of C contact of automatic/continuous changeover switch SW _4-1 from terminal P ₃ ,
Via the automatic side terminal 1b, the normally open contact Ry ₃ -a ₁ of the relay Ry ₃ , the terminal P ₄ , the auxiliary relay Ry ₁ , the terminal P ₅ ,
Terminal P ₂ via normally closed contact Ry ₂ -b of auxiliary relay Ry ₂
Connect to the continuous side terminal 1 of the changeover switch SW _4-1 .
Continuous operation push button switch SW ₅ from a to terminal P ₄
Connect the self-holding contact Ry _{1 -a 1} of relay Ry 1 between terminals P ₃ and P ₄ . Common terminal-2 of C contact of automatic/continuous changeover switch SW _4-2 from terminal _P5
c. Connect to terminal P ₂ via continuous side terminal -2a.
The switches SW ₄ -1 and SW ₄ -2 are interlocked and in this case are configured as an integrated switch SW ₄ .

Connected from terminal P ₃ to terminal P 2 via normally open contact Ry ₁ -a ₂ of relay Ry ₁ , terminal P ₆ , excitation coil k ₁ of switch K ₁ , terminal P ₇ , thermal relay normally closed contact Th- _b . do.

A normally open contact SW ₆ -a of the reversing push button switch is connected in parallel to the contact Ry ₁ -a ₂ , that is, between terminals P ₃ and P ₆ .
In parallel with the exciting coil k ₁ , that is, between the terminals P ₆ and P ₇ ,
Normally closed contact SW ₆ -b of reverse push button switch, switch
Interlock contact k ₃ -b of switch K ₃ , excitation coil k ₂ of switch K ₂ in series circuit, normally closed contact Ry ₁ -b of relay Ry ₁ , interlock contact k ₂ of switch K ₂
-b, connect the series circuit of the excitation coil _k3 of the switch _K3 , respectively. Connect from terminal _P3 to terminal _P2 via alarm buzzer Bz and thermal relay normally open contact Th-a.

Between terminals P ₁ and P ₂ , there is an operating transformer Tr, rectifier circuit B,
The control power supply terminals P ₁₁ and P ₁₂ are drawn out through the constant voltage power supply circuit E, and a timer circuit Tm is connected between the terminals P ₁₁ and P ₁₂ . Normally closed contact Ry ₁ − of relay Ry ₁ from terminal P ₁₁
Connect the parallel circuit of b ₂ and the normally open contact Ry ₃ −a ₂ of the relay Ry ₃ to the input terminal P ₁₃ of the timer circuit Tm. The timer circuit Tm starts when the input terminal _P13 becomes non-voltage, and is reset when the input terminal P13 becomes energized. terminal
Auxiliary relay Ry ₂ is connected between P ₁₁ and time limit output terminal P ₁₄ of timer circuit Tm.

In the above, terminals P ₁ , P ₂ and operation transformer Tr
An automatic/continuous changeover switch _SW4-3 may be provided between the two and connected via the common terminal 3c and the automatic side terminal 3b. The changeover switch SW _4-3 is the switch SW _4-3 .
1 and 2, and is configured as an integrated switch SW _4. If switch SW _3-3 is provided, switch SW _4-2 can be omitted, and switch SW _4-2 and switch SW ₄ -3 can operate normally if any one of them is present.

Fig. 2 shows another embodiment of the electric circuit, and the difference from Fig. 1 is that the material input detection switch SW ₃
This is a multi-contact system and relay Ry ₃ is omitted. Therefore, instead of the contact Ry ₃ −a ₁ in Fig. 1, the contact
Using SW ₃ -1 (between terminals P ₈ ′ and P ₄ ), contact Ry ₃ -
Contact SW ₃ -2 is used instead of a ₂ .

The arrangement of the operation panel surface 51 of the operation panel 5 will be explained with reference to FIG. The upper half of the panel 51 has a power indicator L ₁ , an alarm buzzer Bz, an ammeter A, and the lower half has a power switch SW ₁ , an automatic/continuous changeover switch SW ₄ , a continuous operation push button switch SW ₅ , and an operation indicator L ₂ , a stop push button switch SW ₂ , and a reverse push button switch SW ₆ are installed. These are arranged to facilitate operation monitoring: power switch SW ₁ and power indicator L ₁ ; selector switch SW ₄ and push button switch SW ₅ ; SW ₄ , SW ₅ ,
It is common to install operation switches such as SW ₂ and SW ₆ , operation indicator lights, etc. in close proximity to each other as a group.

FIG. 4 is a layout diagram of the electric control section 6, with switches M ₁ ,
M ₂ , M ₃ , thermal relay Th, auxiliary relay Ry ₁ ,
y ₂ , an operating transformer Tr, a printed board 61 incorporating a timer circuit Tm, a terminal block 6-2, and the like are arranged.

Operation of the electrical device section The operation of the device configured as described above will be explained. The following description will be made based on the circuit shown in FIG. 1, but the operation of the circuit shown in FIG. 2 is similar.

Power supply terminals P ₀₁ and P ₀₂ are connected to an external power supply (not shown), and when switch SW ₁ is turned on, the power terminals
Power is applied to P ₁ and P ₂ , the device enters a ready-to-operate state, and the power indicator L ₁ lights up.

Now assuming that changeover switch SW ₄ is on the automatic side,
Contacts SW ₄ -1 and SW ₄ -2 are both on the automatic side.
When the lid 29 is opened and an object to be crushed (hereinafter referred to as the object) such as a syringe is put in, the insertion detection switch SW ₃ is closed at the same time as the lid 29 is opened, and the relay Ry ₃ is operated, and the contacts Ry ₃ −a ₁ , Ry ₃ −a ₂ closes. When the contact Ry ₃ −a ₁ closes, the relay Ry ₁ operates, the contact Ry ₁ −a ₁ closes and holds itself, the contact Ry ₁ −a ₂ closes, and the coils k ₁ and k ₂ are energized to open and close. vessel K ₁ , K ₂
is turned on and motor M rotates forward. Contact Ry ₁ at the same time
−b ₂ opens and timer circuit Tm starts. On the other hand, the contact Ry ₁ -b ₁ is opened, and the circuit of the coil k ₃ is locked in an open state.

When a predetermined period of time has elapsed, the timer circuit Tm outputs an output, relay Ry ₂ operates, and contact Ry ₂ -b opens.
Relay Ry ₁ opens, coils k ₁ and k ₂ are demagnetized,
Switches K ₁ and K are opened and motor M is stopped.
Below, the switch is turned on every time you open the lid 71 and put something in it.
SW ₃ is activated and the above operation is repeated. timer tm
If something is thrown in during the timer operation, the timer Tm
is reset and restarts the time-limited operation, and the motor stops after the last thrown object is completely crushed.

Next, when the crusher A is locked during operation or when it is necessary to reverse the rollers when cleaning the inside, operate the reverse push button SW ₆ to close the contact SW ₆ -a and close the coil k ₂ The circuit is opened at contact SW ₆ -b, relay Ry ₁ is inactive and the contact is closed.
Since Ry ₁ -b ₁ is closed, coils k ₁ and k ₃ are energized, switches M ₁ and M ₃ operate, and motor M rotates in reverse. When push button switch SW ₆ is released, contact SW ₆ -a,
SW ₆ -b returns to its original state and motor M stops.

When the changeover switch SW ₄ is switched to the continuous side and the push button switch SW ₅ is pressed, the relay Ry ₁ is activated and the motor M rotates forward in the same way as when the lid switch SW ₃ is operated. However, in this case, the circuit of contact Ry ₂ -b is shorted by contact SW ₄ -2, so the timer circuit
Even if Tm finishes counting for a predetermined period of time and relay Ry ₂ operates, the operation is not stopped or the timer circuit Tm
Since the motor M is disconnected from the power supply so that the relay Ry ₂ does not operate, the motor M is continuously operated. This continuous operation is used in the event of a breakdown or when a large amount of material is to be processed.

In any of the above cases, if the crusher Z is locked during operation due to poor material flow or blockage, the motor will be overloaded and the thermal relay Th will operate with overcurrent, causing the failure detection contact Th-b to Open switches _K1 to _K3 to stop the motor. In addition,
Instead of or simultaneously with the above thermal relay Th,
A lock detection device of another type is provided to contact Th-b.
It is possible to arbitrarily choose to provide a protection circuit such as activating the

[Effect of idea]

The syringe crusher according to the present invention has the above configuration,
Used syringes can be promptly shredded to make them unusable on the spot, and there is no inconvenience that would encourage inappropriate reuse, and the operation of the machine is simple and troublesome. can.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, FIG. 1 is an electric circuit diagram, FIG. 2 is an electric circuit diagram showing another embodiment, FIG. 3 is an operation panel layout diagram, and FIG. 4 is an electric circuit diagram showing another embodiment. 5 is a perspective view of the entire device showing an embodiment of the present invention, FIGS. 6 to 8 show an embodiment of the mechanical device, and FIG. 6 is a front view of the device. 7
The figure is a cross-sectional view taken from the side shown in FIG. 6, and FIG. 8 is an explanatory diagram of the shape of the feed roller. C...Case, Z...Mechanical device section, 5...Operation panel, 6...Electrical control section, 7...Chute cover,
71... Lid, 8... Insertion detection switch, 9... Disinfectant tank, 20... Base frame, 21... Installation stand, 6
0... Support frame, M, M ₁ , M ₂ : Motor, K ₁ , K ₂ ,
K ₃ ... Switch, k ₁ , k ₂ , k ₃ ... Excitation coil of switch, SW ₁ ... Power switch, SW ₃ , SW ₃ -1,
SW _3-2 ...Crushing material input detection switch, SW ₄ ,
SW _4-1 , SW _4-2 , SW _4-3 ...Auto/continuous changeover switch, SW ₂ ...Stop push button switch, SW ₅ ...
...Continuous operation push button switch, SW ₆ ...Reverse push button switch, Ry ₁ , Ry ₂ , Ry ₃ ...Auxiliary relay, Tr...
Operation transformer, E... Constant voltage power supply circuit, Tm...
Timer circuit, A...Ammeter, _L1 , _L2 ...Indicator light, Bz...Alarm buzzer, Th...Thermal relay, Th-b...Failure detection contact.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A feeding chute; a feeding roller arranged sequentially below the feeding chute, a compression roller that compresses the syringe etc. so that it can be easily cut, a cutting roller that cuts the syringe, etc., and a feeding roller that is fed from the cutting roller. In a syringe crusher equipped with all or part of a crusher for crushing syringes, etc., which have been used for crushing syringes, etc.: - The motors that drive each device of the crusher are operated, and the motors can be switched to rotate forward or reverse. group of switches;
A first relay circuit that is energized and self-maintained by the activation of the starting circuit, and also selects and operates the switch group in the forward rotation side; starts clocking by the operation signal of the first relay circuit, and after a predetermined period of time has elapsed. A timer circuit that outputs a time-limited output and opens the first relay circuit directly or via a second relay circuit; A reversing switch circuit that selects the switch group to the reverse side and operates it; When automatic operation is selected, the switch goes to the closing chute A starting circuit is formed by a detection means that detects the input of the material to be crushed, and when continuous operation is selected, a starting circuit is formed by operating a continuous operation starting switch, and when automatic operation is selected, the first an automatic/continuous changeover switch circuit that forms a disconnection circuit that opens the relay circuit and prevents the formation of the disconnection circuit when continuous operation is selected; a stop switch circuit that opens each operating circuit of the switch group; A control device for a crusher equipped with a syringe, etc. 2. A control device for a crusher for a syringe or the like as set forth in claim 1, wherein the charging detection means is a switch that is linked to opening and closing of a lid of a charging chute. 3. A control device for a crusher such as a syringe as set forth in claim 1, characterized in that the input detection means is a sensor provided in a conveyance path for crushed objects.