CN211997472U - Screw feeding device - Google Patents

Abstract

The utility model relates to a technical field is carried to the powder, specifically discloses a screw rod feeding device that difficult jam and work load are few, and it includes casing, drive unit, transports subassembly and the control unit, and drive unit is including acceping respectively in the casing and respectively with the control unit electric connection's motor and gear motor, and the motor is connected with gear motor, and gear motor's output runs through the casing and is connected with transporting the subassembly. The transfer component comprises a material cylinder, a feeding part and a screw rod, the material cylinder is communicated with the inner cavity of the shell, a feeding opening is formed in the side face of the ring of the material cylinder, the feeding part is installed on the material cylinder and is communicated with the feeding opening, the screw rod penetrates through the material cylinder and is connected with the output end of the speed reducing motor, and the screw rod is used for transmitting supplied materials of the feeding part. The control unit comprises a controller, a time relay, a speed regulator and an operation panel, wherein the controller, the time relay and the speed regulator are respectively electrically connected with the operation panel, and the operation panel is used for receiving instructions and respectively transmitting the instructions to the controller, the time relay and the speed regulator.

Description

Screw feeding device

Technical Field

The utility model relates to a technical field is carried to the powder, especially relates to a screw rod feeding device.

Background

In the food and pharmaceutical processing industry, before various food and drug products are put into production, multiple experimental preparations and safety tests are often required in a laboratory to ensure the safety of the food and drug products. In the preparation of pharmacy or food in laboratory, often involve transportation and the mixture to all kinds of powder raw materials to improve the homogeneity of material mixing, and then guarantee the stability of product performance. At present, the experimenter mainly transports the powder to another equipment from an equipment through the pipeline, when improving material conveying efficiency, has reduced the human cost for experimental progress to be favorable to promoting the input progress of food medicine.

However, the density of the food and medicine powder involved in the experiment is low, the viscosity is high, the acting force of the powder at the input end of the pipeline on the powder at the output end of the pipeline is low in the powder conveying process, and the problem that the pipeline is blocked by the powder is easy to occur due to the small caliber of the pipeline, so that the effective transportation of the powder is influenced; moreover, in traditional material transportation, need the experimenter to monitor the powder transportation condition in real time, still need get the material again after the material transportation, experimenter's work load greatly increased to experimental efficiency has been reduced.

SUMMERY OF THE UTILITY MODEL

Therefore, a screw feeding device is needed to solve the technical problems of easy blockage of pipelines and large workload.

The utility model provides a screw rod feeding device, this screw rod feeding device includes casing, drive unit, transportation subassembly and the control unit, drive unit includes motor and gear motor, the motor reaches gear motor accept respectively in the inner chamber of casing, the motor reach gear motor respectively with the control unit electric connection, the motor with gear motor connects, gear motor's output runs through the casing and with the transportation subassembly is connected. The transfer assembly comprises a feed cylinder, a feeding piece and a screw rod, one end of the feed cylinder is installed on the shell and communicated with the inner cavity of the shell, the other end of the feed cylinder is communicated with the environment, a feeding hole is formed in the side face of the ring of the feed cylinder, the feeding piece is installed on the feed cylinder and communicated with the feeding hole, the feeding piece is used for conveying powder to the feed cylinder, the screw rod is contained in the inner cavity of the feed cylinder and connected with the output end of the speed reducing motor, the screw rod is abutted to the inner surface of the feed cylinder and forms a spiral channel, the spiral channel is communicated with the feeding piece, and the screw rod is used for receiving incoming materials on the feeding piece and transferring the incoming materials. The control unit comprises a controller, a time relay, a speed regulator and an operation panel, the controller, the time relay and the speed regulator are respectively contained in the inner cavity of the shell and are respectively electrically connected with the operation panel, the controller is electrically connected with the motor, the time relay is electrically connected with the motor, the speed regulator is electrically connected with the speed reduction motor, the operation panel is installed on the outer surface of the shell and is used for being electrically connected with an external power supply, and the operation panel is used for receiving instructions and transmitting the instructions to the controller, the time relay and the speed regulator respectively.

In one embodiment, the transfer assembly further includes a shaft sleeve, a bearing sleeve, a flat bearing and a copper washer, one end of the shaft sleeve is installed on the side surface of the housing and is communicated with the inner cavity of the housing, the other end of the shaft sleeve is communicated with the charging barrel, the bearing sleeve is accommodated in the shaft sleeve and is concentrically arranged with the shaft sleeve, the screw rod sequentially penetrates through the flat bearing and the copper washer and is inserted into the bearing sleeve, one end of the bearing sleeve is connected with the screw rod, and the other end of the bearing sleeve is connected with the output end of the speed reduction motor.

In one embodiment, the transfer assembly further comprises an installation sleeve and a coupler, one end of the installation sleeve is installed on the side face of the shell and communicated with the inner cavity of the shell, the other end of the installation sleeve is communicated with the charging barrel, and the coupler is contained in the inner cavity of the installation sleeve and respectively connected with the output end of the speed reduction motor and the screw rod.

In one embodiment, a motor control button, a speed reduction motor control button, a time relay control button, a speed regulation switch and a speed regulation knob are arranged on the operation panel, the motor control button is used for starting and stopping the motor, the speed reduction motor control button is used for starting and stopping the speed reduction motor, the time relay control button is used for starting and stopping the time relay, the speed regulation switch is used for starting and stopping the speed regulator, and the speed regulation knob is used for regulating the rotating speed of the speed reduction motor.

In one embodiment, a time display is further arranged on the operation panel, and the time display is electrically connected with the time relay.

In one embodiment, the feed opening extends along the length of the cartridge.

In one embodiment, the ratio of the length of the feed opening to the length of the barrel is between 1:3 and 5: 6.

In one embodiment, the transfer assembly further comprises a guide cylinder, and the guide cylinder is mounted at the input end of the feeding piece and is communicated with the feeding piece.

In one embodiment, a plurality of vent holes are formed in the side plate of the shell.

In one embodiment, the bottom of the housing is provided with a plurality of support feet.

According to the screw feeding device, the screw is arranged in the inner cavity of the charging barrel, incoming materials conveyed by the feeding piece are conveyed along the spiral path through the rotation of the screw, so that the problem of accumulation and blockage of powder in the charging barrel is avoided, and the efficient transportation of the powder is realized; through setting up time relay and speed regulator, can set up the regulation to the rotational speed and the rotation time of screw rod to the realization is carried the timing ration of powder, like this, has reduced because of time and the cost of labor of personnel at experimental on-the-spot monitoring, and need not to carry out the secondary in the follow-up operation and call the powder, has further reduced the work load of experiment, thereby has improved experimental efficiency.

Drawings

FIG. 1 is a schematic view showing the structure of a screw feeder in one embodiment;

FIG. 2 is a schematic view showing an exploded structure of a screw feeder according to an embodiment;

FIG. 3 is a schematic view of the screw feeder in the embodiment of FIG. 1 from another perspective;

FIG. 4 is a schematic cross-sectional view taken along the direction A-A in the embodiment shown in FIG. 3;

FIG. 5 is a schematic view showing the structure of a screw feeder in another embodiment;

fig. 6 is a schematic diagram of an exploded structure of a transfer module in yet another embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Please refer to fig. 1 to 4 together, the utility model provides a screw feeding device 10, this screw feeding device 10 includes casing 100, drive unit 200, transport subassembly 300 and the control unit 400, drive unit 200 includes motor 210 and gear motor 220, motor 210 and gear motor 220 accept respectively in the inner chamber of casing 100, motor 210 and gear motor 220 respectively with the control unit 400 electric connection, motor 210 is connected with gear motor 220, the output of gear motor 220 runs through casing 100 and is connected with transport subassembly 300. The transfer assembly 300 comprises a material barrel 310, a feeding piece 320 and a screw 330, wherein one end of the material barrel 310 is installed on the shell 100 and is communicated with an inner cavity of the shell 100, the other end of the material barrel 310 is used for being communicated with the environment, a material inlet 311 is formed in the side face of the ring of the material barrel 310, the feeding piece 320 is installed on the material barrel 310 and is communicated with the material inlet 311, the feeding piece 320 is used for conveying powder to the material barrel 310, the screw 330 is contained in the inner cavity of the material barrel 310 and is connected with an output end of the speed reducing motor 220, the screw 330 is abutted against the inner surface of the material barrel 310 and forms a spiral channel 340, the spiral channel 340 is communicated with the feeding piece 320, and the screw. The control unit 400 includes a controller 410, a time relay 420, a speed regulator 430 and an operation panel 440, the controller 410, the time relay 420 and the speed regulator 430 are respectively accommodated in an inner cavity of the casing 100 and are respectively electrically connected with the operation panel 440, the controller 410 is electrically connected with the motor 210, the time relay 420 is electrically connected with the motor 210, the speed regulator 430 is electrically connected with the speed reduction motor 220, the operation panel 440 is installed on an outer surface of the casing 100 and is used for being electrically connected with an external power supply, and the operation panel 440 is used for receiving an instruction and transmitting the instruction to the controller 410, the time relay 420 and the speed regulator 430 respectively.

In the screw feeding device 10, the screw 330 is arranged in the inner cavity of the charging barrel 310, and the incoming material conveyed by the feeding member 320 is conveyed along the spiral path by the rotation of the screw 330, so that the problem of accumulation and blockage of powder in the charging barrel 310 is avoided, and the high-efficiency transportation of the powder is realized; through setting up time relay 420 and speed regulator 430, can set up the regulation to the rotational speed and the rotation time of screw rod 330 to the realization is carried the timing ration of powder, like this, has reduced because of time and the cost of labor of personnel at experimental on-the-spot monitoring, and need not to carry out the secondary in the follow-up operation and weigh the powder, has further reduced the work load of experiment, thereby has improved experimental efficiency.

The housing 100 is used for accommodating the driving unit 200, so as to protect the driving unit 200, prevent the motor 210 and the reduction motor 220 from being damaged due to the entry of foreign matters into the motor 210 and the reduction motor 220, and prolong the service life of the motor 210 and the reduction motor 220. The housing 100 is further configured to receive the control panel and the driving unit 200, so as to implement installation of the control panel and the driving unit 200. In one embodiment, the side plate of the housing 100 is formed with a plurality of ventilation holes 110. Through set up a plurality of ventilation holes 110 on the curb plate of casing 100, motor 210 and gear motor 220 generate heat in the working process to produce the heat radiation to the air of casing 100 inner chamber, thereby form steam, this part steam can be derived through ventilation hole 110, in order to prevent that steam from gathering in casing 100 inner chamber, motor 210 and gear motor 220 last high fever even damage, in order to prolong the life of motor 210 and gear motor 220. In one embodiment, a plurality of support legs 120 are disposed at the bottom of housing 100. Set up a plurality of supporting legss 120 through the bottom at casing 100, promoted casing 100's level to increased the distance between casing 100 bottom and the outside ground, avoided the equipment pollution that arouses because of the water stain or the oil stain on experimental scene overflows the surface of casing 100, and then cause the powder pollution problem, in order to guarantee the security of food and medicine.

The driving unit 200 is used for driving the screw 330 to rotate so as to facilitate the transfer of the powder. The motor 210 is an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction, and a rotor of the motor 210 rotates at a high speed under an energized condition, thereby providing power for rotation of the screw 330. Gear motor 220 is used for reducing the rotational speed that motor 210 output transmitted to screw rod 330, and is concrete, gear motor 220 is inside to be provided with the different gear of a plurality of tooth counts, the less tooth count's of gear motor 220 input gear and the more tooth count's of speed reducer output gear engagement, thereby reduce the rotational speed of gear motor 220 output, namely, reduce the rotational speed of screw rod 330, too fast because of screw rod 330 rotational speed is avoided, the powder of feed cylinder 310 output splashes down fast along the circumferencial direction of feed cylinder 310 under the inertial action, the powder waste and the pollution problem that cause. It should be noted that the motor 210 and the reduction motor 220 according to the present invention are commercially available motors 210 and 220, and the structures and the operation principles of the two are well known to those skilled in the art, so that the structures and the operation principles of the motor 210 and the reduction motor 220 will not be described too much here.

The transfer assembly 300 is used for receiving incoming materials and conveying the incoming materials to another external processing device, so that the transfer of powder is realized. The barrel 310 is used for accommodating the screw 330, and forms a spiral channel 340 together with the screw 330 to accommodate powder to be transported. In an embodiment, the feeding port 311 extends along the length direction of the barrel 310, so that the problem of difficulty in processing the feeding member 320 caused by the fact that the output end of the feeding member 320 needs to completely surround the outer edge of the feeding port 311 to ensure the sealing property between the feeding port 311 and the feeding member 320 when the feeding port 311 extends along the circumferential direction of the barrel 310 is solved, and the processing difficulty of the feeding member 320 and the feeding port 311 is reduced.

In order to prevent the powder from blocking at the feeding port 311 and ensure the powder transportation efficiency, referring to fig. 5, in one embodiment, the ratio of the length of the feeding port 311 to the length of the barrel 310 is between 1:3 and 5: 6. Preferably, the ratio of the length of the inlet 311 to the length of the barrel 310 is 1: 2. In other words, the wider material inlet 311 is formed in the annular side surface of the material barrel 310 along the length direction of the material barrel 310, so that the possibility of powder accumulation at the material inlet 311 is greatly reduced, and the powder transfer efficiency and the powder quantitative transfer reliability are improved.

The feeder member 320 is adapted to receive external material and transfer the material into the helical channel 340 of the cartridge 310. In one embodiment, the transferring assembly 300 further comprises a material guiding cylinder 350, and the material guiding cylinder 350 is installed at the input end of the feeding member 320 and is communicated with the feeding member 320. Through the arrangement of the material guide cylinder 350, the capacity of the feeding member 320 is increased, in other words, the amount of powder which can be carried by the feeding member 320 is increased, so that when the motor 210 and the powder feeding device are not started or stopped synchronously, the feeding member 320 can still receive more powder to prevent the powder from splashing. In addition, when outside supplied material speed was great, the powder easily produced the resilience after assaulting the inner wall of pay-off piece 320, through setting up guide cylinder 350, can avoid the high speed to fall the powder spill to pay-off piece 320 to reduce the waste of powder in the experiment.

The screw 330 is used for receiving the powder transported by the feeding member 320, and is driven by the speed reducing motor 220 to rotate, so that the powder turns and advances in the spiral channel 340, in other words, the screw 330 pushes the powder in the rotating process, so that the powder moves from the feeding port 311 to the output end of the barrel 310, and the transportation of the powder is realized. In one embodiment, the transferring assembly 300 further includes a shaft sleeve 331, a bearing sleeve 332, a flat bearing 333 and a copper washer 334, one end of the shaft sleeve 331 is installed at a side surface of the casing 100 and is communicated with an inner cavity of the casing 100, the other end of the shaft sleeve 331 is communicated with the charging barrel 310, the bearing sleeve 332 is accommodated in the shaft sleeve 331 and is concentrically arranged with the shaft sleeve 331, the screw 330 sequentially penetrates through the flat bearing 333 and the copper washer 334 and is inserted into the bearing sleeve 332, one end of the bearing sleeve 332 is connected with the screw 330, and the other end of the bearing sleeve 332 is connected with an output end of the speed reduction motor 220. Through setting up parts such as cover, bearing housing 332, flat bearing 333 and copper washer 334, improved the stability that screw rod 330 is connected with gear motor 220 output, screw rod 330 is difficult for breaking away from gear motor 220 to the effective transportation of material has been guaranteed.

Referring to fig. 6, in another embodiment, the transferring assembly 300 further includes a mounting sleeve 335 and a coupler 336, one end of the mounting sleeve 335 is mounted on a side surface of the casing 100 and is communicated with the inner cavity of the casing 100, the other end of the mounting sleeve 335 is communicated with the charging barrel 310, and the coupler 336 is received in the inner cavity of the mounting sleeve 335 and is respectively connected to the output end of the speed reducing motor 220 and the screw 330. It can be understood that, by adopting the coupler 336 to connect the screw 330 with the speed reducing motor 220, the coupler 336 actually replaces the bearing sleeve 332, the plane bearing 333, the copper washer 334 and other parts, so as to reduce the use amount of the parts of the equipment, and thus, the assembly difficulty and the production cost of the equipment are reduced.

The control unit 400 is configured to receive an external instruction, and control the corresponding controller 410, the time relay 420, and the speed governor 430 to operate according to the instruction, so as to start and stop the motor 210, the reduction motor 220, and the time relay 420, and adjust the rotation speed of the output end of the reduction motor 220, so as to control the conveying time and the conveying amount of the powder. The controller 410 is used for controlling and regulating the operation of the motor 210, in other words, the controller 410 is used for controlling the start and stop of the screw feeding device so as to realize the transportation operation of the powder. The time relay 420 is used for controlling the working time of the motor 210, so as to be beneficial to further controlling the powder amount transported by the screw feeding device. The time relay 420 is an electrical component used in a circuit with a lower voltage or a lower current for switching on or off the circuit with a higher voltage and a higher current, and particularly, after the time relay 420 receives an action command transmitted by the operation panel 440, the output circuit of the time relay 420 is subjected to a jump change only after a predetermined accurate time, so that the circuit is subjected to a jump change at a predetermined time point to switch on or off the current, thereby controlling the power on or off of the motor 210 at a fixed time, and realizing the fixed-time and quantitative transportation of the pulverized coal. The speed governor 430 is used to reduce the aperiodic speed fluctuation of the reduction motor 220, in other words, the speed governor 430 is used to adjust the rotational speed of the reduction motor 220 so that the rotational speed of the reduction motor 220 is maintained at or near a predetermined value. In this embodiment, the governor 430 is of the type US 3240.

In one embodiment, the operation panel 440 is provided with a motor control button 441, a deceleration motor control button 442, a time relay control button 443, a speed regulation switch 444 and a speed regulation knob 445, the motor control button 441 is used for starting and stopping the motor 210, the deceleration motor control button 442 is used for starting and stopping the deceleration motor 220, the time relay control button 443 is used for starting and stopping the time relay 420, the speed regulation switch 444 is used for starting and stopping the speed regulator 430, and the speed regulation knob 445 is used for regulating the rotation speed of the deceleration motor 220.

It should be noted that, the utility model discloses a time relay 420 and speed regulator 430 are the general model of market, and the structure and the theory of operation of the two belong to this technical field's common general knowledge, only need time relay 420 and speed regulator 430 the size model satisfy install with casing 100 in and can realize to gear motor 220's operating time and the regulation of rotational speed can, it is no longer repeated here.

In one embodiment, the operation panel 440 further has a time display 446, and the time display 446 is electrically connected to the time relay 420. Therefore, the user can observe the working time of the screw feeding device in real time in the experimental process so as to master the powder conveying condition. In addition, still be provided with a plurality of state display lamps on operating panel 440, each state display lamp corresponds respectively with a control button electric connection, so, when equipment broke down, the user can be according to the situation of corresponding state display lamp to troubleshooting to improve maintenance efficiency.

It should be noted that, in actual production, the operation panel 440 may also be designed as a touch control screen according to the user's requirement, so as to simplify the operation of the device. Of course, a data processor may be added to electrically connect the data processor to the time relay 420 and the speed controller 430, and input the function relating the powder density and the flow rate into the data processor in advance, so as to facilitate the data processor to calculate the powder weight in real time and display the powder weight on the display screen of the operation panel 440.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A screw feeding device is characterized by comprising a shell, a driving unit, a transferring component and a control unit,

the driving unit comprises a motor and a speed reducing motor, the motor and the speed reducing motor are respectively accommodated in the inner cavity of the shell, the motor and the speed reducing motor are respectively and electrically connected with the control unit, the motor is connected with the speed reducing motor, and the output end of the speed reducing motor penetrates through the shell and is connected with the transfer assembly;

the transfer assembly comprises a charging barrel, a feeding piece and a screw rod, one end of the charging barrel is mounted on the shell and is communicated with the inner cavity of the shell, the other end of the charging barrel is used for being communicated with the environment, a feeding hole is formed in the side face of the ring of the charging barrel, the feeding piece is mounted on the charging barrel and is communicated with the feeding hole, the feeding piece is used for conveying powder to the charging barrel, the screw rod is accommodated in the inner cavity of the charging barrel and is connected with the output end of the speed reducing motor, the screw rod is abutted against the inner surface of the charging barrel and forms a spiral channel, the spiral channel is communicated with the feeding piece, and the screw rod is used for receiving incoming materials on the feeding piece and transferring the incoming materials;

the control unit comprises a controller, a time relay, a speed regulator and an operation panel, the controller, the time relay and the speed regulator are respectively contained in the inner cavity of the shell and are respectively electrically connected with the operation panel, the controller is electrically connected with the motor, the time relay is electrically connected with the motor, the speed regulator is electrically connected with the speed reduction motor, the operation panel is installed on the outer surface of the shell and is used for being electrically connected with an external power supply, and the operation panel is used for receiving instructions and transmitting the instructions to the controller, the time relay and the speed regulator respectively.

2. The screw feeding device according to claim 1, wherein the transfer assembly further comprises a shaft sleeve, a bearing sleeve, a flat bearing and a copper washer, one end of the shaft sleeve is mounted on the side surface of the housing and is communicated with the inner cavity of the housing, the other end of the shaft sleeve is communicated with the charging barrel, the bearing sleeve is accommodated in the shaft sleeve and is concentrically arranged with the shaft sleeve, the screw sequentially penetrates through the flat bearing and the copper washer and is inserted in the bearing sleeve, one end of the bearing sleeve is connected with the screw, and the other end of the bearing sleeve is connected with the output end of the speed reduction motor.

3. The screw feeding device according to claim 1, wherein the transfer assembly further comprises a mounting sleeve and a coupling, one end of the mounting sleeve is mounted on the side surface of the housing and is communicated with the inner cavity of the housing, the other end of the mounting sleeve is communicated with the charging barrel, and the coupling is accommodated in the inner cavity of the mounting sleeve and is respectively connected with the output end of the speed reduction motor and the screw.

4. The screw feeding device according to claim 1, wherein the operation panel is provided with a motor control button, a speed reduction motor control button, a time relay control button, a speed regulation switch and a speed regulation knob, the motor control button is used for starting and stopping the motor, the speed reduction motor control button is used for starting and stopping the speed reduction motor, the time relay control button is used for starting and stopping the time relay, the speed regulation switch is used for starting and stopping the speed regulator, and the speed regulation knob is used for regulating the rotation speed of the speed reduction motor.

5. Screw feeding device according to claim 4, wherein a time display is further arranged on the operation panel, and the time display is electrically connected with the time relay.

6. A screw feeder according to claim 1, wherein the inlet extends along the length of the barrel.

7. Screw feeding device according to claim 6, characterized in that the ratio of the length of the inlet to the length of the barrel is between 1:3 and 5: 6.

8. The screw feeding device according to claim 1, wherein the transfer assembly further comprises a guide cylinder, and the guide cylinder is mounted at the input end of the feeding member and is communicated with the feeding member.

9. The screw feeding device according to claim 1, wherein a plurality of vent holes are formed in a side plate of the housing.

10. Screw feeder according to claim 1, characterised in that the bottom of the housing is provided with a plurality of support feet.

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