Material drying cylinder assembly with material detection device for injection molding machine

Abstract

The utility model provides a material drying cylinder component with a material detection device for an injection molding machine, which is provided with a material drying cylinder, a perspective window is arranged on the material drying cylinder, a light sensing device is arranged on the transverse outer side of the perspective window, the light sensing device is fixedly connected with the outside of the material drying cylinder, and a relay is arranged on one side of the light sensing device. One side of the relay is in electric signal connection with a signal receiving sensor on the light sensing device, the other side of the relay is connected with an alarm device, the alarm device is in electric signal connection with the relay, the other side of the relay is connected with a material suction machine, and the material suction machine is in electric signal connection with the relay. According to the material drying barrel assembly, the material detection device is installed on one side of the material drying barrel, when materials in the material drying barrel are lower than the monitoring position of the material detection device, the material detection device immediately controls the material suction machine to operate, injection molding particles are added into the material drying barrel, and it is ensured that all the injection molding particles in the material drying barrel can reach enough drying time. The utility model can be widely applied to the material drying cylinder of the injection molding machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to a material drying device, in particular to a material drying cylinder assembly with material detection device for injection molding machine. BACKGROUND

[0002] The injection molding particles need to be effectively dried before injection molding, and the drying time is usually 2-4 hours, which is to remove the moisture in the injection molding particles to avoid the accumulation of moisture in the injection molding particles, which produces bubbles in the injection molding process, resulting in damage to the molded product, which cannot be used, more importantly, due to batch processing in the injection molding process, improper operation can easily cause unnecessary waste, and increase production cost and reduce production efficiency.

[0003] In actual injection molding processing, in order to ensure that the injection molding particles have sufficient drying time, according to the specified drying time of the specific injection molding particles, a monitoring device is installed at the corresponding height position inside the drying cylinder, and the injection molding particles enter the injection molding machine from the height position. The time is close to the upper limit value of the drying time.

[0004] When the injection molding particles are lower than the monitoring range of the monitoring device, the monitoring device controls the material suction machine to run, and the material suction machine adds injection molding particles into the drying cylinder, and when the injection molding particles are higher than the monitoring range of the monitoring device, the monitoring device controls the material suction machine to stop running, and completes the single feeding process, which is repeated through the process to ensure the timely replenishment of the injection molding particles, and ultimately ensure that the injection molding particles in the drying cylinder can reach sufficient drying time.

[0005] However, the monitoring device is prone to damage in long-term frequent use, which directly leads to the failure of the material suction machine to run normally, and the injection molding particles cannot be replenished in time, so that the injection molding particles cannot be dried for sufficient time, and ultimately lead to batch defects of the injection molding product.

[0006] UTILITY MODEL CONTENTS

[0007] The utility model provides a kind of drying cylinder assembly with material detection device for injection molding machine to the above technical problems, by installing material detection device and alarm device on the side of the drying cylinder of the injection molding machine, the monitoring position of material detection device is located close to the lower limit value position of the drying time of injection molding particles, when the injection molding particles in the drying cylinder are lower than the monitoring position of material detection device, material detection device immediately controls material suction machine to run, and material suction machine adds injection molding particles into the drying cylinder, so that the injection molding particles can be replenished in time, ensure that the injection molding particles in the drying cylinder can reach sufficient drying time, improve the quality of injection molding product;

[0008] ​And, the material detection device controls the operation of the suction machine, and the alarm device sends an alarm signal, so that the operator can timely perform fault maintenance, and finally ensure the orderly operation of the material drying work and the injection molding work.

[0009] Therefore, the technical scheme of the utility model is a material drying cylinder assembly for an injection molding machine with a material detection device, which is provided with a material drying cylinder, and a perspective window is arranged on the cylinder wall of the material drying cylinder.

[0010] A light sensing device is arranged on one side of the material drying cylinder at a transversely outer position of the perspective window, and the light sensing device is fixedly connected to the outside of the material drying cylinder.

[0011] A signal transmitting sensor and a signal receiving sensor are arranged on the light sensing device.

[0012] One side of the light sensing device is provided with a relay, one side of the relay is connected to the signal receiving sensor on the light sensing device through a wire electrical signal, the other side of the relay is connected with an alarm device, the alarm device is connected to the relay through a wire electrical signal, and the other side of the relay is connected with a suction machine, and the suction machine is connected to the relay through a wire electrical signal.

[0013] The suction machine is composed of a suction machine main body and a suction machine discharge pipe, and the outer side port of the suction machine discharge pipe is located at the top of the material drying cylinder.

[0014] Preferably, the perspective window is arranged at the middle position of the cylinder wall of the material drying cylinder and along the circumferential direction of the material drying cylinder.

[0015] Preferably, the light sensing device is fixedly connected to the outside of the material drying cylinder through a light sensing device fixing seat.

[0016] One end of the light sensing device fixing seat is fixedly connected to the light sensing device, and the other end of the light sensing device fixing seat is slidably connected to the outside of the material drying cylinder, so that the light sensing device fixing seat can slide up and down on the outside of the material drying cylinder.

[0017] Preferably, the alarm device is an alarm lamp and a buzzer, and the alarm lamp and the buzzer are connected to the relay through a wire electrical signal.

[0018] Preferably, a lower limit warning line is arranged on the perspective window and surrounds the perspective window along the circumferential direction.

[0019] The utility model has the advantages of:

[0020] 1. By installing the light sensing device 4 at the outside position of the perspective window 8 on the drying cylinder 1, the light sensing device 4 is electrically connected with the relay 3, the relay 3 controls the alarm device and the material suction machine 2 respectively, when the drying cylinder 1 normally works, the signal emitting sensor 401 on the light sensing device 4 emits a light beam, the light beam passes through the perspective window 8 and irradiates to the inside of the drying cylinder 1, when the material in the inside of the drying cylinder 1 is higher than the position corresponding to the light beam, the light beam irradiates to the side of the material, the reflection of the light beam in the opposite direction occurs, the reflected light beam is transmitted to the signal receiving sensor 402, after the signal receiving sensor 402 receives the reflected light beam, the optical signal is converted into the digital signal "1", then is transmitted to the relay 3, at this time, the contact of the relay 3 keeps the open state, the alarm device and the material suction machine 2 controlled by the relay 3 are in the standby state, the material in the inside of the drying cylinder 1 in the state can reach the normal drying time, the injection molding operation is normally carried out;

[0021] When the material in the inside of the drying cylinder 1 is lower than the position corresponding to the light beam, the light beam irradiates to the upper end face of the material, the reflection of the light beam in the same direction occurs, the reflected light beam cannot be transmitted to the signal receiving sensor 402, the signal receiving sensor 402 cannot receive the reflected light beam signal, at this time, the signal receiving sensor 402 transmits the digital signal "0" to the relay 3, when the relay 3 receives the digital signal "0", the contact switches to the closed state, the alarm device and the material suction machine 2 controlled by the relay 3 enter the working state, the alarm device sends the alarm signal, reminds the operator to carry out the related fault elimination, at the same time, the material suction machine 2 opens the material suction mode, supplements the material to the inside of the drying cylinder 1, stops until the material in the inside of the drying cylinder 1 is supplemented to the full bin state, at this time, the relay 3 restores the open state, the alarm device and the material suction machine 2 controlled by the relay 3 restore the standby state, ensure that the drying cylinder works normally.

[0022] 2. Since the perspective window 8 is located at the middle position of the cylinder wall of the drying cylinder 1 and is arranged along the circumferential direction of the drying cylinder 1, on the one hand, the operator or the patrol personnel can easily see the real-time state of the material in the inside of the drying cylinder 1 from multiple directions through the perspective window 8, on the other hand, the light sensing device 4 can be fixed at any position of the outer circumference of the drying cylinder 1 at the specified height according to the actual installation needs, the installation interference problem is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is the full bin state running schematic diagram of the drying cylinder of the utility model;

[0024] Fig. 2 is the half bin state running schematic diagram of the drying cylinder of the utility model.

[0025] Symbol explanation in the drawing:

[0026] 1. Drying cylinder; 2. Suction machine; 201. Suction machine body; 202. Suction machine discharge pipe; 3. Relay; 4. Light sensing device; 401. Signal emitting sensor; 402. Signal receiving sensor; 5. Wire; 6. Alarm lamp; 7. Beeper; 8. Perspective window; 9. Injection molding particles; 10. Light sensing device fixing seat; 11. Lower limit warning line. DETAILED DESCRIPTION

[0027] The utility model will be further described below in combination with the embodiments.

[0028] Through Figs. 1-2 It can be seen that the drying cylinder assembly of the injection molding machine with the material detection device is provided with a drying cylinder 1, a perspective window 8 is arranged on the cylinder wall of the drying cylinder 1, and the material state in the inside of the drying cylinder 1, such as the material reserve, the material appearance state and the like, can be viewed in real time through the perspective window 8.

[0029] A light sensing device 4 is arranged at the lateral outside position of the perspective window 8 on one side of the drying cylinder 1, the light sensing device 4 is fixedly connected with the outside of the drying cylinder 1, and the light sensing device 4 can monitor the material reserve state in the inside of the drying cylinder 1 in real time through the perspective window 8.

[0030] The signal emitting sensor 401 and the signal receiving sensor 402 are arranged on the light sensing device 4, one side of the light sensing device 4 is provided with a relay 3, one side of the relay 3 is electrically connected with the signal receiving sensor 402 on the light sensing device 4 through the wire 5, the other side of the relay 3 is connected with an alarm device, the alarm device is electrically connected with the relay 3 through the wire 5, and the still other side of the relay 3 is connected with a suction machine 2, the suction machine 2 is electrically connected with the relay 3 through the wire 5, the suction machine 2 is composed of a suction machine body 201 and a suction machine discharge pipe 202, and the outside port of the suction machine discharge pipe 202 is located at the top position of the drying cylinder 1.

[0031] When the drying cylinder 1 works, the signal emitting sensor 401 on the light sensing device 4 emits a light beam, the light beam passes through the perspective window 8 and irradiates to the inside of the drying cylinder 1, when the material in the inside of the drying cylinder 1 is higher than the position corresponding to the light beam, the light beam irradiates to the side surface of the material, the reflection in the opposite direction occurs, the reflected light beam is transmitted to the signal receiving sensor 402, after the signal receiving sensor 402 receives the reflected light beam, the optical signal is converted into a digital signal "1", then is transmitted to the relay 3, at this time, the contact of the relay 3 keeps the open state, the alarm device and the suction machine 2 controlled by the relay 3 are in the standby state, and the material in the inside of the drying cylinder 1 in this state can still reach the sufficient drying time.

[0032] When the material inside the drying cylinder 1 is lower than the position corresponding to the light beam, the light beam hits the upper end surface of the material, and the reflected light beam cannot be transmitted to the signal receiving sensor 402, so the signal receiving sensor 402 cannot receive the reflected light beam signal. At this time, the signal receiving sensor 402 transmits a digital signal "0" to the relay 3, and when the relay 3 receives the digital signal "0", the contact switches to the closed state, and the alarm device and the material suction machine 2 controlled thereby enter the working state, the alarm device sends an alarm signal, reminding the operator to troubleshoot the related fault, at the same time, the material suction machine 2 starts the material suction mode, and stops after the material in the drying cylinder 1 is supplemented to the full bin state. At this time, the relay 3 returns to the open state, and the alarm device and the material suction machine 2 controlled thereby return to the standby state, ensuring the normal operation of the drying and heating work.

[0033] The perspective window 8 is located at the middle position of the cylinder wall of the drying cylinder 1 and is arranged along the circumferential direction of the drying cylinder 1. On the one hand, the operator or the inspector can easily see the real-time state of the material in the drying cylinder 1 from multiple directions through the perspective window 8, and on the other hand, the light sensing device 4 can be fixed at any position on the outer circumference of the drying cylinder 1 at a specified height according to actual installation needs, avoiding installation interference problems.

[0034] The light sensing device 4 is fixedly connected to the outside of the drying cylinder 1 through the light sensing device fixing seat 10. The specific fixing mode is that one end of the light sensing device fixing seat 10 is fixedly connected to the light sensing device 4, such as welding, screw locking, plug-in connection, etc., and the other end of the light sensing device fixing seat 10 is slidingly connected to the outside of the drying cylinder 1, such as slide rail connection, rack connection, etc. The light sensing device fixing seat 10 can slide up and down on the outside of the drying cylinder 1, and the position of the light sensing device 4 relative to the perspective window 8 can be adjusted up and down according to the specific drying time of the injection molding particles, so as to be suitable for different drying time standards of injection molding particles, and the operation is simple and fast.

[0035] The alarm device is an alarm lamp 6 and a buzzer 7. The alarm lamp 6 and the buzzer 7 are electrically connected to the relay 3 through the wire 5. When the reflected light beam of the signal emitting sensor 401 cannot be transmitted to the signal receiving sensor 402 due to the material being lower than the position corresponding to the light beam, the relay 3 is triggered to be turned on, the alarm lamp 6 and the buzzer 7 are simultaneously put into operation, the alarm lamp 6 is turned on, and the buzzer 7 sends a fault warning, reminding the operator to troubleshoot the fault in the first time, avoiding causing the injection molding product to be defective or even causing a safety hazard.

[0036] The lower limit warning line 11 is located on the perspective window 8 at a position 3-5 cm below the position corresponding to the light beam emitted by the signal emitting sensor 401, and serves as an emergency use. When the operator or the inspector finds that the material remaining amount has dropped to the position of the lower limit warning line 11, and the material suction machine 2 and the alarm device still do not operate, the injection molding operation needs to be immediately stopped. At this time, it indicates that the light sensing device 4 or the alarm device or the relay 3 or the material suction machine 2 or other related components have faults, and need to be immediately repaired to avoid related safety hazards.

[0037] The above is only a specific embodiment of the present application, and cannot limit the scope of the present application. The replacement of equivalent components or equivalent changes and modifications made within the scope of the present application should still fall within the scope of the present application.

Claims

1. A drying cylinder assembly for an injection molding machine with a material detection device, characterized in that: The drying cylinder is provided with a perspective window on the cylinder wall. A light sensing device is arranged on the side of the drying cylinder outside the perspective window, and is fixedly connected with the outside of the drying cylinder. The light sensing device is provided with a signal emitting sensor and a signal receiving sensor. A relay is arranged on one side of the light sensing device, and is electrically connected with the signal receiving sensor on the light sensing device through wires. The other side of the relay is connected with an alarm device, and the alarm device is electrically connected with the relay through wires.

2. The material drying cylinder assembly for an injection molding machine with material detection device according to claim 1, characterized in that: The other side of the relay is connected with a suction machine, and the suction machine is electrically connected with the relay through wires.

3. The material drying cylinder assembly for an injection molding machine with material detection as set forth in claim 1, wherein: The suction machine is composed of a suction machine body and a suction machine discharge pipe. The outside port of the suction machine discharge pipe is located at the top of the drying cylinder.

4. The material drying cylinder assembly for an injection molding machine with material detection as set forth in claim 1, wherein: The perspective window is located at the middle position of the cylinder wall of the drying cylinder and is arranged along the circumferential direction of the drying cylinder.

5. The material drying cylinder assembly for an injection molding machine with material detection as set forth in claim 2, wherein: The light sensing device is fixedly connected with the outside of the drying cylinder through a light sensing device fixing seat. One end of the light sensing device fixing seat is fixedly connected with the light sensing device, and the other end of the light sensing device fixing seat is slidingly connected with the outside of the drying cylinder, so that the light sensing device fixing seat can slide up and down on the outside of the drying cylinder. The alarm device is an alarm lamp and a buzzer, and the alarm lamp and the buzzer are electrically connected with the relay through wires. The perspective window is provided with a lower limit warning line around the circumferential direction.

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