CN206493481U - A kind of pelleter - Google Patents

Abstract

The utility model discloses a kind of pelleter, solve the problem of above guide roller easily security incident is occurred into for hand, its drip irrigation device is, towards the direction close to guide roller horizontal-extending there is support plate side in frame positioned at charging aperture side, on support plate close to guide roller plate face and be provided with the position close to its end for detecting whether there is human infrared radiation to export the human testing unit of human testing signal, the execution unit in response to control signal is coupled with control unit, a kind of pelleter of the present utility model, monitor whether there is human infrared radiation by the human testing unit on support plate, it can effectively judge whether someone by hand close to guide roller and charging aperture, if detecting human infrared radiation, then execution unit can cut off pelleter in time, avoid causing personal injury, improve security；Support plate can extend to human testing unit optimum detection position, and then improve the degree of accuracy of human testing.

Description

A kind of pelleter

Technical field

The utility model is related to plastics bar processing unit, more particularly to a kind of pelleter.

Background technology

Pelletizing is one of important procedure in plastic granulating production technology, and general is exactly that plastics lines are cut into graininess, And pelleter is the most frequently used equipment in current pelletizing production process.

Publication No. CN201604234U utility model discloses a kind of granulator material strip guide device, the guider Feedstock direction including more than one along material strip is arranged on the outside of the charging aperture of pelleter to guide material strip to enter leading for charging aperture To roller, guide roller is arranged on the outside of the charging aperture of pelleter by being fixed on the support frame of pelleter.Above-mentioned granulator material strip Guider, guide roller can be oriented to before material strip enters pelletizing machine inlet to material strip so that material strip is stably entered Enter into pelleter and carry out pelletizing, so as to improve the quality of material grain, and avoid causing to twine knife because material strip is unstable.

But stock-cutter is in the process of running, staff would generally be unfamiliar with and incite somebody to action because of inadvertent or to operational procedure Hand is stretched near guide roller and operated, and causes material strip that the hand of staff is easily moved or guide roller to be involved in charging Mouthful, serious personal injury is caused, therefore also there is certain room for improvement in existing pelleter.

Utility model content

The purpose of this utility model is to provide a kind of pelleter, when staff by hand near guide roller when, can It is automatically stopped operation.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of pelleter, including frame, the charging aperture being opened in the frame and the guiding being arranged on the outside of charging aperture Towards the direction close to guide roller horizontal-extending there are support plate, the support plate in side in roller, the frame positioned at charging aperture side Plate face fit in the side of frame, the support plate be located on the top of guide roller, the support plate close to guide roller plate face simultaneously It is provided with the position close to its end for detecting whether having human infrared radiation to export people's physical examination of human testing signal The control unit being coupled with unit, the human testing unit for receiving human testing signal and output control signal is surveyed, The execution unit in response to control signal is coupled with described control unit；

When human testing unit, which is detected, there is human infrared radiation near the plate face of support plate, described control unit control Execution unit works, to cut off the current supply circuit of pelleter.

Using such scheme, monitor whether there is human infrared radiation by the human testing unit on support plate, Neng Gouyou Effect judge whether someone by hand close to guide roller and charging aperture, if detecting human infrared radiation, execution unit can and When cut off pelleter, it is to avoid cause personal injury, improve security；Support plate can extend to human testing unit optimal inspection Location is put, and then improves the degree of accuracy of human testing.

Preferably, being also coupled in described control unit in response to control signal so that execution unit keeps working condition From lock unit.

Using such scheme, the state can be kept it in after execution unit action from lock unit, so that pelletizing Machine is maintained at stopped status, until potential safety hazard is eliminated, adds security.

Preferably, being also coupled to for cutting-off controlling unit release from lock unit self-locking state in described control unit Reset portion.

Using such scheme, reset portion causes staff after confirming that potential safety hazard is excluded, can fast shut-off from Lock unit, to release the stopped status of pelleter so that pelleter can normally be started.

Preferably, described control unit has been also coupled in response to control signal point out whether execution unit is in work The alarm unit of state.

Using such scheme, alarm unit can in time be warned after pelleter is performed unit cut-out, to remind Staff, more hommization.

Preferably, the side that support plate is provided with the frame is further fixed in mounting seat, the mounting seat in close The side of guide roller offers the slot for branch plate level grafting.

Using such scheme, mounting seat provides installing space for support plate, and the grafting between slot and support plate coordinates can The dismounting of support plate is realized, it is convenient that human testing unit is repaired and changed, also allow for the cleaning of charging aperture.

Preferably, the side away from frame offers the screwed hole for being communicated in slot, the screw thread in the mounting seat Hole internal thread is connected with the screw rod for being connected to support plate.

Using such scheme, screw rod circumferentially rotating in screwed hole can be changed into axial movement, by tightening screw rod, The end of screw rod can be tightly pressed on to the plate face of support plate, so that support plate is firmly locked in slot；By Unscrew, The end of screw rod can be driven to leave the plate face of support plate, and then release the locking of support plate so that support plate can be carried out in slot Plug operation.

Preferably, the one end of the screw rod away from slot is provided with gripping member.

Using such scheme so that screw rod is more prone to be rotated.

Preferably, being respectively equipped with two sides relative in the slot in the transmitter module and reception being oppositely arranged Module, the transmitter module is used to launch infrared ray, and the receiving module is used to receive the infrared ray sent by transmitter module And according to whether receive infrared ray and export corresponding infrared detection signal, be coupled with the receiving module in response to red Outside line detects the performing module of signal；

When support plate is inserted into slot to separate the infrared ray sent by transmitter module, the performing module controls pelletizing Machine can be activated；Conversely, pelleter can not start.

Using such scheme, detect whether the infrared ray sent by transmitter module is separated by receiving module, can Judge whether support plate has been plugged in slot；Separated when detecting infrared ray, illustrate that support plate has been plugged in slot, this When pelleter can be activated；If detecting infrared ray not separated, illustrate that support plate is not plugged in slot, now pelleter without Method starts, and then avoids support plate in the case of uninstalled, starts pelleter and there is potential safety hazard, it is ensured that human testing unit Detection results.

Hold respectively for transmitter module with receiving module preferably, being offered on two sides relative in the slot The groove put.

Using such scheme, groove is that transmitter module and receiving module provide accommodation space, while ensure that transmitting mould Block will not protrude from the side of slot with receiving module so that support plate smoothly can be inserted into slot, without being obstructed.

Preferably, the performing module includes being coupled to the delay portion of receiving module and is coupled to the execution in delay portion Portion, the delay portion is in response to infrared detection signal to control the current supply circuit of enforcement division Delayed conducting pelleter.

Using such scheme so that support plate can just make pelletizing after being inserted into slot and keeping the state for a period of time Machine, which is placed in, can be activated state, so as to avoid support plate in the case where non-grafting is stable, pelleter is activated.

In summary, the utility model has the advantages that：Monitored whether by the human testing unit on support plate There is human infrared radiation, can effectively judge whether someone by hand close to guide roller and charging aperture, if it is red to detect human body External radiation, then execution unit can cut off pelleter in time, it is to avoid cause personal injury, improve security；Support plate can be by Human testing unit extends to optimum detection position, and then improves the degree of accuracy of human testing.

Brief description of the drawings

Fig. 1 is the explosive view of the present embodiment；

Fig. 2 is the partial sectional view of the present embodiment；

Fig. 3 is the circuit diagram one of the present embodiment；

Fig. 4 is the circuit diagram of alarm unit in the present embodiment；

Fig. 5 is the circuit diagram two of the present embodiment；

Fig. 6 is the circuit diagram three of the present embodiment.

In figure：1st, frame；2nd, charging aperture；3rd, guide roller；4th, support plate；5th, human testing unit；6th, control unit；7th, perform Unit；8th, from lock unit；9th, reset portion；10th, alarm unit；11st, mounting seat；12nd, slot；13rd, screwed hole；14th, screw rod；15、 Gripping member；16th, transmitter module；17th, receiving module；18th, groove；19th, delay portion；20th, enforcement division；21st, support frame.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected in right of the present utility model by Patent Law.

A kind of pelleter disclosed in the present embodiment, as shown in figure 1, including frame 1, the and of the charging aperture being opened in frame 12 The guide roller 3 in the outside of charging aperture 2 is arranged at, support frame 21, the two ends difference of guide roller 3 are respectively and fixedly provided with the both sides of charging aperture 2 Between the end for being articulated in two support frames 21 so that guide roller 3 can be rotated on support frame 21.

, it is necessary to which what is first passed through the guiding of guide roller 3 and become is steady during material strip enters pelleter from charging aperture 2 It is smooth, so that material strip steadily can be entered fitly in the charging aperture 2 of pelleter, existing pelleter is effectively prevent due to material The material grain that bar shake is unstable and causes is uneven and twines knife problem.

As shown in figure 1, the side in frame 1 positioned at the side of charging aperture 2 horizontal-extending has towards the direction close to guide roller 3 Support plate 4, the end of support plate 4 is preferably placed at the top of guide roller 3, and the plate face of support plate 4 fits in the side of frame 1.

As shown in figures 1 and 3, on support plate 4 close to guide roller 3 plate face and in close to its end position be provided be used for examine Survey with the presence or absence of human infrared radiation to export the human testing unit 5 of human testing signal, human testing unit 5 is pyroelectricity Sensor N1, pyroelectric sensor N1 input are coupled to voltage V3, and output end exports corresponding human testing signal, and heat is released Electric transducer N1 earth terminal ground connection.

Pyroelectric sensor is mainly the detecting element being made up of the material of high Seebeck coefficient, loads in each detector One or two detecting element, and by two detecting elements with opposite polarities in series, to suppress because own temperature is raised and is produced Interference；The infra-red radiation for detecting and receiving is transformed into faint voltage signal by detecting element, through in probe Outwards exported after FET amplification.Pyroelectric sensor N1 is arranged on support plate 4 close to the plate face of guide roller 3 and close The position of its end, can effective detection human hand whether in the top position of guide roller 3.If someone is attached in the top of guide roller 3 During near operation, pyroelectric sensor N1 is able to detect that human infrared radiation, and then exports the human testing signal of high level；Instead It, if hand is extend near guide roller 3 by nobody, pyroelectric sensor N1 can't detect human infrared radiation, so as to export Low level human testing signal.Support plate 4 is located at the top of guide roller 3 so that pyroelectric sensor N1 detection will not be by The barrier of material strip.

As shown in figure 3, being coupled with the control for receiving human testing signal and output control signal on human testing unit 5 Unit 6 processed, control unit 6 includes relay KA, the triode Q1 of NPN type and sustained diode 2, relay KA coil One end is coupled to voltage V1, and the other end is coupled to triode Q1 colelctor electrode, and triode Q1 base stage is coupled to pyroelectricity sensing Device N1 output end is to receive human testing signal, sustained diode 2 and relay KA coil inverse parallel.

As shown in figure 3, being coupled with the execution unit 7 in response to control signal in control unit 6, execution unit 7 is relay Device KA normally-closed contact KA-1, it is series at the current supply circuit of pelleter.

When there is human infrared radiation near human testing unit 5 detects the plate face of support plate 4, control unit 6 is controlled Execution unit 7 works, to cut off the current supply circuit of pelleter.

As shown in figure 3, being also coupled in control unit 6 in response to control signal so that execution unit 7 keeps working condition From lock unit 8, from the normally opened contact KA-2 that lock unit 8 is relay KA, its two ends is respectively coupled to triode Q1 current collection Pole and emitter stage.

As shown in figure 3, being also coupled to for cutting-off controlling unit 6 release from the self-locking state of lock unit 8 in control unit 6 Reset portion 9, reset portion 9 is normally closed button SB2, and triode Q1 emitter stage is grounded by normally closed button SB2.

As shown in figure 4, control unit 6 has been also coupled in response to control signal point out whether execution unit 7 is in work The alarm unit 10 of state, alarm unit 10 includes relay KA normally opened contact KA-3 and buzzer SP, and relay KA's is normal The one end for opening contact KA-3 is coupled to voltage V2, and the other end is coupled to buzzer SP one end, buzzer SP other end ground connection.

As shown in figure 1, the side that support plate 4 is provided with frame 1 is further fixed on mounting seat 11, the mounting seat 11 is in square In shape, mounting seat 11 slot 12 for the horizontal grafting of support plate 4 is offered in the side close to guide roller 3.The section of the slot 12 It is preferred that trapezoidal set, section of the support plate 4 on length direction is it is also preferred that in the ladder consistent with the cross sectional shape of slot 12 Shape.The asymmetric setting in support plate 4 and the section of slot 12, it is anti-inserted in mounting seat 11 to be prevented effectively from support plate 4, and then guarantor The test side of body detection unit 5 faces guide roller 3 all the time, so as to keep its Detection results.

As shown in figure 1, the side away from frame 1 offers the screwed hole 13 for being communicated in slot 12, screw thread in mounting seat 11 Hole 13 is preferably disposed on the position being open close to slot 12.The internal thread of screwed hole 13 is connected with the screw rod 14 for being connected to support plate 4, spiral shell One end away from frame 1 exceeds the side of mounting seat 11 on bar 14, and the one end of screw rod 14 away from slot 12 is provided with gripping member 15, The gripping member 15 is preferably plum blossom handle.

As shown in Fig. 2 being respectively equipped with two sides relative in slot 12 in the transmitter module 16 being oppositely arranged with connecing Module 17 is received, and transmitter module 16 is located at two sides relative in the plate face both sides of support plate 4, slot 12 with receiving module 17 respectively The groove 18 housed respectively for transmitter module 16 with receiving module 17 is offered on face, the opening of two grooves 18 is in relative sets Put, to ensure that transmitter module 16 can be relative with receiving module 17, and the depth of two grooves 18 is respectively equal to or more than respective The thickness of corresponding transmitter module 16 and receiving module 17 so that transmitter module 16 will not protrude from slot 12 with receiving module 17 Side.And two grooves 18 may be contained within close to the position of the bottom of slot 12 so that transmitter module 16 and the energy of receiving module 17 The whether fully-inserted bottom to slot 12 of enough effective detection support plates 4.

As shown in fig. 6, transmitter module 16 be used for launch infrared ray, it include NE555 timers A1, resistance R1, R2, R3, Electric capacity C1, C2 and infrared transmitting tube L1；NE555 timers A1 1 pin ground connection, resistance R1 is coupled to NE555 timers A1 2 pin And 3 between pin；Infrared transmitting tube L1 anode is coupled to 3 pin, and negative electrode is grounded by resistance R3, and resistance R3 plays the work of current limliting With can effectively prevent infrared transmitting tube L1 from being damaged because electric current is excessive；NE555 timers A1 5 pin are connect by electric capacity C2 Ground；The resistance R2 and electric capacity C1 being connected in series, resistance the R2 other end are coupled to voltage vcc, electric capacity C1 other end ground connection； NE555 timers A1 6 pin are coupled to resistance R2 and electric capacity C1 tie point；Above-mentioned connected mode constitutes 555 multi-harmonic-oscillations Device, it can export the wave of oscillation of certain frequency in infrared transmitting tube L1, infrared transmitting tube L1 is exported the red of specific wavelength Outside line acts on receiving module 17.

As shown in fig. 6, receiving module 17 is used to receive the infrared ray sent by transmitter module 16 and according to whether received Export corresponding infrared detection signal to infrared ray, it include infrared receiving tube L2, resistance R4, R5, R6, R7, R8, R9, Electric capacity C3, C4, diode D1 and comparator A2；Infrared receiving tube L2 plus earth, negative electrode is coupled to electric capacity C3 one end；Electricity The other end for holding C3 is coupled to diode D1 anode, and diode D1 negative electrode is coupled to resistance R6 one end, and resistance R6's is another One end is coupled to comparator A2 inverting input；Resistance R4 one end is coupled to electric capacity C3 and diode D1 tie point, separately One end is grounded；Electric capacity C4 one end is coupled to diode D1 negative electrode, other end ground connection；Resistance R5 one end is coupled to electric capacity C4 With resistance R6 tie point, other end ground connection；Resistance R7 one end is coupled to voltage E, and the other end is coupled to the same of comparator A2 Phase input；Resistance R8 one end is coupled to comparator A2 in-phase input end, other end ground connection；Resistance R9 one end is coupled to Comparator A2 output end, other end output infrared detection signal.Wherein infrared receiving tube L2 and infrared transmitting tube L1 is in phase To setting, so that the infrared ray that infrared transmitting tube L1 is sent can be received by infrared receiving tube L2.

As shown in fig. 6, resistance R7 and R8 constitute bleeder circuit, benchmark electricity is provided for comparator A2 in-phase input end Pressure, reference voltage value is determined by ratio shared in voltage E resistance R8.The meeting when infrared receiving tube L2 receives infrared ray Electric current is produced, and is become by force from weak with ultrared, electric current, which can be also followed from small, becomes big, makes comparator A2 inverting input Voltage gradually rises；When the voltage of inverting input is more than the reference voltage value of in-phase input end, comparator A2 passes through resistance R9 exports low level infrared detection signal.

Conversely, when infrared receiving tube L2 is not received by infrared ray or very weak infrared ray, comparator A2's is anti-phase defeated Enter terminal voltage close to zero, the infrared detection signal that at this moment comparator A2 passes through resistance R9 output high level；Wherein diode D1 plays rectified action, and electric capacity C4 plays filter action, and resistance R6 plays metering function, prevents input comparator A2 electric current mistake Cause comparator A2 to damage greatly, resistance R9 also functions to metering function, prevent that the electric current that comparator A2 is exported is excessive.Receiving module The performing module in response to infrared detection signal is coupled with 17, when support plate 4 is inserted into slot 12 to separate by transmitting mould The infrared ray that block 16 is sent, performing module control pelleter can be activated；Conversely, pelleter can not start.

Performing module includes being coupled to the delay portion 19 of receiving module 17 and is coupled to the enforcement division 20 in delay portion 19, is delayed Portion 19 is in response to infrared detection signal to control the current supply circuit of the Delayed conducting pelleter of enforcement division 20.

As shown in figure 5, delay portion 19 includes obtaining the time relay KT of electric time lagged type, the triode Q2 of NPN type and afterflow Diode D3, one end of time relay KT coil is coupled to voltage V4, and the other end is coupled to triode Q2 colelctor electrode, three Pole pipe Q2 base stage is coupled to resistance R9 output end and detects signal, grounded emitter, sustained diode 3 with receiving infrared-ray With time relay KT coil inverse parallel.

As shown in figure 3, enforcement division 20 instantaneously disconnects normally opened contact KT-1 for time relay KT timing closing, it is connected In the current supply circuit of pelleter.

Specific work process is as follows：

Before using pelleter, it is necessary to first pass through the Unscrew 14 of gripping member 15, support plate 4 then is inserted into slot 12 It is interior, and separate the infrared ray sent by transmitter module 16, so that receiving module 17 can not be received, so as to export high level Infrared detection signal to triode Q2 base stage, turn on triode Q2, time relay KT coil obtains electric adhesive, open Beginning is clocked into state, screw rod 14 is tightened finally by gripping member 15, so that the end of screw rod 14 firmly presses on the plate of support plate 4 Face, just can lock support plate 4, support plate 4 can not be departed from slot 12.If within the time cycle of setting, support plate 4 stills remain in this State, then time relay KT timing closing instantaneously disconnects normally opened contact KT-1 closures, if now pressing the startup of pelleter Button, pelleter can normally start.

If before pelleter is started, support plate 4 is not inserted into slot 12, or be not completely inserted into support plate 4 The bottom of slot 12, the then infrared ray sent by transmitter module 16 is not separated so that receiving module 17 can receive red Outside line, so as to export low level infrared detection signal to triode Q2 base stage, ends triode Q2, the time relay KT coil is in power failure state, and its corresponding timing closing instantaneously disconnects normally opened contact KT-1 disconnections, to cut off pelleter Current supply circuit, makes pelleter not run.

Pelleter is during normal operation, if nobody stretches to hand the top position of guide roller 3, pyroelectricity Sensor N1 can't detect human infrared radiation, so as to export low level human testing signal to triode Q1 base stage, make Triode Q1 ends, and relay KA coil is in power failure state, and its corresponding normally-closed contact KA-1 is in closure state so that Pelleter can remain on state.Relay KA normally opened contact KA-2 and KA-3 all is at off-state, buzzing simultaneously Device SP does not alarm.

Pelleter in the process of running, if someone stretches to hand the top position of guide roller 3, pyroelectric sensor N1 The human infrared radiation sent by hand is able to detect that, so as to export the human testing signal of high level to triode Q1's Base stage, turns on triode Q1, and relay KA coil obtains electric adhesive, and its corresponding normally-closed contact KA-1 disconnects, to cut The current supply circuit of grain machine, makes pelleter out of service, so as to avoid accident.

Relay KA normally opened contact KA-2 and KA-3 is all closed simultaneously, wherein normally opened contact KA-2 closed pair relay Device KA carries out self-locking, relay KA coil is maintained to obtain electricity condition, so that relay KA normally-closed contact KA-1 is all the time It is off, and then pelleter is maintained at cut-off state, while relay KA normally opened contact KA-3 is in all the time Closure state, makes buzzer SP continuously send out alarm song, to remind staff.

After staff is hearing alarm song, hand is retracted in time, then potential safety hazard is excluded.Now pyroelectric sensor N1 can't detect human infrared radiation, thus export low level human testing signal again to triode Q1 base stage, make three Pole pipe Q1 ends, at this moment because relay KA normally opened contact KA-2 is in self-locking state so that relay KA coil is also located In electricity condition.

To release self-locking, normally closed button SB2 is pressed, with block system relay KA coil, just can make relay KA line Enclose dead electricity to reset, its corresponding normally-closed contact KA-1 is re-closed, and state can be activated by reforming into pelleter, while after Electrical equipment KA normally opened contact KA-2 and KA-3 also disconnects, and relieves relay KA self-locking state, while buzzer SP stops Alarm.

Claims (10)

1. a kind of pelleter, including frame (1), the charging aperture (2) that is opened in the frame (1) and it is arranged at charging aperture (2) The guide roller (3) in outside, it is characterized in that：Side on the frame (1) positioned at charging aperture (2) side is towards close to guide roller (3) direction is horizontal-extending support plate (4), and the plate face of the support plate (4) fits in the side of frame (1), support plate (4) position On top in guide roller (3), the support plate (4) close to guide roller (3) plate face and in close to its end position provided with use In detecting whether to have human infrared radiation to export the human testing unit (5) of human testing signal, the human testing list The control unit (6) for receiving human testing signal and output control signal, described control unit (6) are coupled with first (5) On be coupled with execution unit (7) in response to control signal；

When human testing unit (5), which is detected, there is human infrared radiation near the plate face of support plate (4), described control unit (6) control execution unit (7) work, to cut off the current supply circuit of pelleter.

2. a kind of pelleter according to claim 1, it is characterized in that：Be also coupled in described control unit (6) in response to Control signal so that execution unit (7) keep working condition from lock unit (8).

3. a kind of pelleter according to claim 2, it is characterized in that：It has been also coupled to be used to cut in described control unit (6) Disconnected control unit (6) is to release the reset portion (9) from lock unit (8) self-locking state.

4. a kind of pelleter according to claim 1, it is characterized in that：Described control unit (6) has been also coupled in response to control Signal processed is to point out the alarm unit (10) whether execution unit (7) is in running order.

5. a kind of pelleter according to claim 1, it is characterized in that：The side of support plate (4) is installed on the frame (1) It is further fixed on offering in the side close to guide roller (3) on mounting seat (11), the mounting seat (11) and is inserted for support plate (4) level The slot (12) connect.

6. a kind of pelleter according to claim 5, it is characterized in that：Side away from frame (1) on the mounting seat (11) Face offers the screwed hole (13) for being communicated in slot (12), and screwed hole (13) internal thread, which is connected with, is connected to support plate (4) Screw rod (14).

7. a kind of pelleter according to claim 6, it is characterized in that：The one end of the screw rod (14) away from slot (12) is set There is gripping member (15).

8. a kind of pelleter according to claim 5, it is characterized in that：Divide in the slot (12) on two relative sides She You not be in the transmitter module (16) being oppositely arranged and receiving module (17), the transmitter module (16) is used to launch infrared ray, The receiving module (17) be used to receiving the infrared ray that is sent by transmitter module (16) and according to whether receive infrared ray and Export the execution mould being coupled with corresponding infrared detection signal, the receiving module (17) in response to infrared detection signal Block；

When support plate (4) is inserted into slot (12) to separate the infrared ray sent by transmitter module (16), the performing module Control pelleter can be activated；Conversely, pelleter can not start.

9. a kind of pelleter according to claim 8, it is characterized in that：It is equal on two relative sides in the slot (12) Offer the groove (18) housed respectively for transmitter module (16) with receiving module (17).

10. a kind of pelleter according to claim 8, it is characterized in that：The performing module includes being coupled to receiving module (17) delay portion (19) and the enforcement division (20) for being coupled to delay portion (19), the delay portion (19) is in response to infrared detection Signal is to control the current supply circuit of enforcement division (20) Delayed conducting pelleter.