Safety protection device of mixing machine

Abstract

The utility model discloses a safety protection device of a mixing machine, which is characterized in that a charging lifting track is fixedly arranged on one side of the mixing machine, a charging lifting table is mounted on the charging lifting track in a lifting motion manner, and a table top which is positioned at the front end of a charging port of a mixing cylinder and is used for standing of workers is formed on the charging lifting table; the feeding lifting driving device drives the feeding lifting platform to lift, the feeding ascending switch and the feeding descending switch control the feeding lifting driving device to operate forwards and backwards, the feeding starting switch is connected with a power supply circuit of the feeding lifting driving device in series, and the mixing starting switch is connected with a power supply circuit of a mixing cylinder rotation driving device of the mixing machine in series. The charging starting switch and the mixing starting switch are connected through an interlocking circuit, so that one of the charging lifting driving device and the mixing drum rotating driving device of the mixing machine is electrified, the situation that a person is in a charging or approaching state when the mixing machine works is avoided, and the working safety of the mixing machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pharmaceutical equipment, in particular to a mixing machine safety device. BACKGROUND

[0002] When pharmacy, many medicines need to adopt mixing machine to mix fully when mixing, and if personnel is close to the mixing machine when mixing, the mixing cylinder of the mixing machine will rotate at high speed, which will cause personnel injury and safety accidents, and in actual use, once the worker forgets to stop the mixing machine before feeding, or someone mistakenly enters the space where the mixing machine is located, it will lead to personnel injury and safety accidents. UTILITY MODEL CONTENTS

[0003] In order to make up for the above shortcomings, the utility model provides a mixing machine safety device, which can avoid accidents caused by personnel approaching the mixing machine during operation and realize safe production.

[0004] The utility model discloses a mixing machine safety device, including mixing machine support, mixing cylinder, mixing cylinder rotation driving arrangement and mixing machine control system, the mixing cylinder can rotate and be installed on the mixing machine support, and the mixing cylinder one end is equipped with the feeding opening, is equipped with the cylinder cover that can open and seal the closure of feeding opening on the feeding opening, and the mixing cylinder rotation driving arrangement drives the rotation of the mixing cylinder, and the mixing machine control system can control the mixing cylinder rotation driving arrangement stop, still be equipped with feeding lifting platform, feeding lifting track, feeding lifting driving arrangement, feeding ascending switch, feeding descending switch, feeding start switch and mixing start switch, the feeding lifting track is fixed and located at one side of the mixing machine support, and the feeding lifting platform can be installed on the feeding lifting track and move up and down, the feeding lifting platform is located at the feeding opening front end of the mixing cylinder, and the feeding lifting platform is formed with the table surface that worker stands on, the feeding lifting driving arrangement drives the up and down movement of the feeding lifting platform, the feeding ascending switch and feeding descending switch are all installed on the lateral wall of the feeding lifting track, and the feeding ascending switch and feeding descending switch are respectively electrically connected with the feeding lifting driving arrangement communication and then control the positive and negative operation of the feeding lifting driving arrangement, the feeding start switch and the power supply circuit of the feeding lifting driving arrangement are in series, the mixing start switch and the power supply circuit of the mixing cylinder rotation driving arrangement are in series, and the feeding start switch and the mixing start switch are connected through interlocking circuit and make the feeding lifting driving arrangement and the mixing cylinder rotation driving arrangement two choose one.

[0005] As a further improvement of the utility model, a safety trigger device is also provided, which is installed on the bottom surface or the feeding lifting track. When the feeding lifting platform rises and separates from the ground, the safety trigger device can be triggered. The safety trigger device can send a feeding signal to the mixing machine control system.

[0006] As a further improvement of the present application, the safety trigger device is a micro switch or a photoelectric switch.

[0007] As a further improvement of the present application, the feeding lifting driving device comprises a servo motor, a speed reducer and a transmission mechanism, the servo motor transmits power to the transmission mechanism through the speed reducer, and the transmission mechanism drives the feeding lifting platform to move up and down.

[0008] As a further improvement of the present application, the transmission mechanism is a screw nut mechanism or a chain wheel and chain mechanism.

[0009] As a further improvement of the present application, the feeding lifting platform is further provided with safety fences around the platform surface, one of the safety fences forms an openable and closable door structure, and workers can enter the safety fence through the door structure.

[0010] As a further improvement of the present application, the feeding lifting platform is further provided with support pads below the feeding lifting platform, and the support pads are provided with elastic pads which can be flatly attached to the ground for support.

[0011] As a further improvement of the present application, the mixing machine support is further provided with a safety frame, four groups of first laser emitting and receiving devices are arranged on the inner side of the safety frame, the first laser emitting and receiving devices can sense the personnel approaching the mixing drum, the first laser emitting and receiving devices are in communication with the mixing machine control system, and the mixing machine control system can control the mixing drum rotating driving device to stop when receiving the signal of the first laser emitting and receiving devices.

[0012] As a further improvement of the present application, an alarm is further provided, four groups of second laser emitting and receiving devices are further arranged on the outer wall of the safety frame, the second laser emitting and receiving devices can sense the personnel entering the safety frame, the second laser emitting and receiving devices are in communication with the mixing machine control system, and the mixing machine control system can control the alarm to send an alarm when receiving the signal of the second laser emitting and receiving devices.

[0013] As a further improvement of the present application, the mixing machine is a three-dimensional motion mixing machine, a two-dimensional mixing machine, a V-shaped mixing machine or a square-cone mixing machine.

[0014] The utility model discloses beneficial technical effects are: the utility model discloses through the design liftable feeding lifting platform, and the worker and material go up certain height only can add material into mixing cylinder in the feeding of feeding lifting platform, through setting up safety trigger device and the linkage of mixing cylinder, the lifting process of feeding lifting platform cannot start mixing cylinder, only after mixing cylinder can start when feeding lifting platform drops to the ground, the lifting function of feeding lifting platform cannot start in the starting process of mixing cylinder, avoid the personnel on feeding lifting platform when mixing cylinder rotates, cause personnel to be wounded, simultaneously, when the personnel cross the outer layer laser light and shoot device, will produce audible -visual alarm, when the personnel cross the inner layer laser light and shoot device, mixing cylinder automatic shutdown, further fully avoid that someone misenters the working space of mixing machine and causes personnel to be wounded, ensure the working safety of mixing machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure principle main view for two -dimensional mixing machine of the utility model,

[0016] Figure 2 It is the structure principle main view for square taper mixing machine of the utility model. DETAILED DESCRIPTION

[0017] Embodiment: a mixing machine safety device, including mixing machine support 1, mixing cylinder 2, mixing cylinder rotary drive arrangement 3 and mixing machine control system, mixing cylinder 2 can be installed on mixing machine support 1 rotatably, and mixing cylinder 2 one end is equipped with the feeding opening 21, and the feeding opening 21 is equipped with the cylinder cover that can open and seal closed of feeding opening 21, and mixing cylinder rotary drive arrangement 3 drives mixing cylinder 2 rotation, and mixing machine control system can control mixing cylinder rotary drive arrangement 3 shutdown, still be equipped with feeding lifting platform 4, feeding lifting track 5, feeding lifting drive arrangement, feeding up switch 6, feeding down switch 7, feeding start switch 15 and mixing start switch 16, feeding lifting track 5 is fixed on one side of mixing machine support 1, and feeding lifting platform 4 can be installed on feeding lifting track 5 and move up and down, the feeding lifting platform 4 is located at the front end of the feeding opening 21 of mixing cylinder 2, and the feeding lifting platform 4 is formed with the table surface for worker to stand, the feeding lifting drive arrangement drives the lifting movement of feeding lifting platform 4, the feeding up switch 6 and feeding down switch 7 are all installed on the side wall of feeding lifting track 5, and the feeding up switch 6 and feeding down switch 7 are respectively electrically connected with communication feeding lifting drive arrangement to control feeding lifting drive arrangement and run in reverse, the feeding start switch 15 is in series with the power supply circuit of feeding lifting drive arrangement, and the mixing start switch 16 is in series with the power supply circuit of mixing cylinder rotary drive arrangement 3, and the feeding start switch 15 and mixing start switch 16 are connected by interlock circuit to make feeding lifting drive arrangement and mixing cylinder rotary drive arrangement 3 two choices.

[0018] When feeding, the worker presses the feeding start switch 15, the feeding lifting drive device is powered on and can start, at the same time, the mixing cylinder rotating drive device 3 is powered off and stops, the worker carries the material and gets on the feeding lifting platform 4, presses the feeding lifting up switch 6, and the feeding lifting platform 4 is lifted to a certain height, so that the material can be added into the mixing cylinder 2, after the feeding is completed, the feeding lifting down switch 7 is pressed, the feeding lifting platform 4 is lowered to a certain height, and after the worker gets off the feeding lifting platform 4, the mixing start switch 16 is pressed, the mixing cylinder rotating drive device 3 is powered on and can start, at the same time, the feeding lifting drive device is powered off and stops, at this time, the mixing cylinder 2 can start to mix the material, by setting the feeding start switch 15 and the mixing start switch 16 in linkage interlocking, the mixing cylinder 2 cannot start during the lifting process of the feeding lifting platform 4, only after the feeding is completed, the mixing start switch 16 is pressed, the mixing cylinder 2 can start, and during the starting process of the mixing cylinder 2, the lifting function of the feeding lifting platform 4 cannot start, so as to avoid that the worker is injured when the mixing cylinder 2 rotates and the worker is on the feeding lifting platform 4.

[0019] The safety trigger device 8 is installed on the bottom surface or the feeding lifting track 5, the safety trigger device 8 can be triggered when the feeding lifting platform 4 rises and separates from the ground, and the safety trigger device 8 can send a feeding signal to the mixer control system. By setting the safety trigger device 8 to sense the position of the feeding lifting platform 4, it is further avoided that the worker is injured due to the mixing start switch 16 being mistakenly pressed by other people during the feeding process, only after the feeding lifting platform 4 is lowered to contact the ground and the worker leaves, the mixing cylinder 2 can be started, and the safety of the mixer operation is further improved.

[0020] The safety trigger device 8 is a micro switch or a photoelectric switch.

[0021] The feeding lifting drive device comprises a servo motor, a speed reducer and a transmission mechanism, the servo motor transmits power to the transmission mechanism through the speed reducer, and the transmission mechanism drives the feeding lifting platform 4 to move up and down.

[0022] The transmission mechanism is a screw nut mechanism or a chain wheel and chain mechanism.

[0023] The feeding lifting platform 4 is further provided with a safety fence 9 around the platform surface, one of the safety fences 9 forms a door structure that can be opened and closed, and the worker can enter the safety fence 9 through the door structure. The safety fence 9 can prevent the worker from falling off the feeding lifting platform 4 when feeding.

[0024] The feeding lifting platform 4 is provided with a supporting pad foot 10 below, the supporting pad foot 10 is pasted with an elastic pad, and the elastic pad can be pasted with the ground to support. After the feeding lifting platform 4 is lowered in place, the elastic pad on the supporting pad foot 10 contacts the ground, and a buffering effect is achieved.

[0025] The mixing machine support 1 is further provided with a safety frame 11, four groups of first laser emitter-receiver devices 12 are arranged on the inner side of the safety frame 11, the first laser emitter-receiver devices 12 can sense the personnel approaching the mixing barrel 2, the first laser emitter-receiver devices 12 are in communication with the mixing machine control system, and the mixing machine control system can control the mixing barrel rotation driving device 3 to stop working when receiving the signal of the first laser emitter-receiver devices 12. When the personnel crosses the light beams of the first laser emitter-receiver devices 12, the mixing barrel 2 will automatically stop working, thereby avoiding the personnel from entering the working space of the mixing machine and being injured, and ensuring the safety of the mixing machine.

[0026] Further, an alarm 14 is arranged, and four groups of second laser emitter-receiver devices 13 are arranged on the outer wall of the safety frame 11, the second laser emitter-receiver devices 13 can sense the personnel entering the inside of the safety frame 11, the second laser emitter-receiver devices 13 are in communication with the mixing machine control system, and the mixing machine control system can control the alarm 14 to give an alarm when receiving the signal of the second laser emitter-receiver devices 13. The second laser emitter-receiver devices 13 are arranged outside the first laser emitter-receiver devices 12, and when the personnel crosses the second laser emitter-receiver devices 13, an audible and visual alarm will be given, so that the personnel can leave in time.

[0027] The mixing machine is a three-dimensional motion mixing machine, a two-dimensional mixing machine, a V-shaped mixing machine, or a square-cone mixing machine.

Claims

1. A safety protection device for a mixer, comprising a mixer support (1), a mixing drum (2), a mixing drum rotation drive device (3) and a mixer control system, wherein the mixing drum is rotatably mounted on the mixer support, a feeding port (21) is provided at one end of the mixing drum, a drum cover is provided on the feeding port that can open and seal the feeding port, the mixing drum rotation drive device drives the mixing drum to rotate, and the mixer control system can control the mixing drum rotation drive device to stop, wherein the safety protection device comprises: The invention also provides a feeding lifting platform (4), a feeding lifting track (5), a feeding lifting drive device, a feeding raising switch (6), a feeding lowering switch (7), a feeding start switch (15) and a mixing start switch (16). The feeding lifting track is fixedly arranged on one side of the mixer bracket. The feeding lifting platform is installed on the feeding lifting track so as to be able to move upward and downward. The feeding lifting platform is located at the front end of the feeding port of the mixing drum. A table for workers to stand is formed on the feeding lifting drive device. The feeding lifting drive device drives the feeding lifting platform to move upward and downward. The feeding raising switch and the feeding lowering switch are both installed on the side wall of the feeding lifting track. The feeding raising switch and the feeding lowering switch are respectively electrically connected and communicated with the feeding lifting drive device to control the forward and reverse operation of the feeding lifting drive device. The feeding start switch is connected in series with the power supply circuit of the feeding lifting drive device. The mixing start switch is connected in series with the power supply circuit of the mixing drum rotation drive device. The feeding start switch and the mixing start switch are connected through an interlocking circuit so that either the feeding lifting drive device or the mixing drum rotation drive device is energized.

2. The mixer safety protection device according to claim 1, characterized in that: A safety trigger device (8) is also provided. The safety trigger device is installed on the bottom surface or the feeding lifting track. When the feeding lifting platform rises and leaves the ground, the safety trigger device can be triggered. The safety trigger device can send a feeding signal to the mixer control system.

3. The mixer safety protection device according to claim 2, characterized in that: The safety trigger device is a micro switch or a photoelectric switch.

4. The mixer safety protection device according to claim 1, characterized in that: The feeding lifting drive device includes a servo motor, a reducer and a transmission mechanism. The servo motor transmits power to the transmission mechanism through the reducer, and the transmission mechanism drives the feeding lifting platform to move up and down.

5. The mixer safety protection device according to claim 4, characterized in that: The transmission mechanism is a screw-nut mechanism or a sprocket-chain mechanism.

6. The mixer safety protection device according to claim 1, characterized in that: A safety fence (9) is also provided around the tabletop of the charging lifting platform, wherein one side of the safety fence forms a door structure that can be opened and closed, and workers can enter the safety fence through the door structure.

7. The mixer safety protection device according to claim 1, characterized in that: A supporting foot (10) is provided below the feeding lifting platform, and an elastic pad is attached to the supporting foot, and the elastic pad can be flatly attached to the ground for support.

8. The mixer safety protection device according to claim 1, characterized in that: A safety frame (11) is further provided on the periphery of the mixer bracket, and four groups of first laser shooting devices (12) are provided on the inner side of the safety frame. The first laser shooting devices are capable of sensing personnel approaching the mixing drum, and the first laser shooting devices communicate with the mixer control system. The mixer control system receives signals from the first laser shooting devices and is capable of controlling the mixing drum rotation drive device to stop.

9. The mixer safety protection device according to claim 8, characterized in that: An alarm (14) is also provided. Four sets of second laser shooting devices (13) are also provided on the outer wall of the safety frame. The second laser shooting devices can sense people entering the interior of the safety frame. The second laser shooting devices communicate with the mixer control system. The mixer control system receives signals from the second laser shooting devices and can control the alarm to sound an alarm.

10. The mixer safety protection device according to claim 1, characterized in that: The mixer is a three-dimensional motion mixer, a two-dimensional mixer, a V-shaped mixer, or a square cone mixer.

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