阅读说明：本技术 碳粉灌装机 (Carbon powder filling machine ) 是由 杨洪 于 2021-06-10 设计创作，主要内容包括：碳粉灌装机,涉及将粉末状物料送入包装容器的灌装设备技术领域。碳粉灌装机包括机架及设置在所述机架内的送粉仓,用于将所述送粉仓内的碳粉进行灌装的送粉轴及其轴承座；所述轴承座内设置有降温气道,所述降温气道位于所述送粉轴与所述轴承座之间。具有通过降温气道快速带走送粉轴、轴承及轴承座中的热量,使温度维持在碳粉结块温度以下,相对提高灌装速度的优点。(Carbon powder liquid filling machine relates to and sends powdered material into packaging container's filling equipment technical field. The carbon powder filling machine comprises a frame, a powder feeding bin arranged in the frame, a powder feeding shaft for filling carbon powder in the powder feeding bin and a bearing seat thereof; and a cooling air passage is arranged in the bearing seat and is positioned between the powder feeding shaft and the bearing seat. The powder conveying device has the advantages that heat in the powder conveying shaft, the bearing and the bearing seat is quickly taken away through the cooling air passage, so that the temperature is maintained below the carbon powder caking temperature, and the filling speed is relatively increased.)

1. The carbon powder filling machine comprises a rack, a powder feeding bin arranged in the rack, a powder feeding shaft for filling carbon powder in the powder feeding bin and a bearing seat of the powder feeding shaft;

the method is characterized in that:

and a cooling air passage is arranged in the bearing seat and is positioned between the powder feeding shaft and the bearing seat.

2. The toner filling machine as defined in claim 1, wherein:

the bearing temperature sensor is used for acquiring the temperature value of the bearing section;

and the control device receives a temperature value signal transmitted by the bearing temperature sensor, compares the temperature value signal with a preset temperature value, and increases the gas flow rate in the cooling air passage and/or reduces the rotating speed of the powder conveying shaft when the temperature value is higher than the preset temperature value.

3. The toner filling machine of claim 2, wherein:

bearing section temperature sensor includes first temperature sensor and second temperature sensor, first temperature sensor is used for gathering send the first temperature value of powder axle, second temperature sensor is used for gathering the second temperature value of bearing frame.

4. A toner filling machine as defined in any one of claims 1 to 3 wherein:

the powder feeding device is characterized by further comprising a third temperature sensor used for collecting a temperature value of the powder outlet section, the control device receives a third temperature value signal transmitted by the third temperature sensor and compares the third temperature value signal with a third preset temperature value, and when the third temperature value is higher than the third preset temperature value, the gas flow rate in the cooling air channel is increased and/or the rotating speed of the powder feeding shaft is reduced.

5. The carbon powder filling machine comprises a rack, a powder feeding bin arranged in the rack, a powder feeding shaft and a bearing seat, wherein the powder feeding shaft and the bearing seat are used for filling carbon powder in the powder feeding bin;

the method is characterized in that:

the stirring shaft is a hollow shaft, and the powder feeding shaft is positioned in the hollow shaft in the radial direction at the bearing section;

and a cooling air passage extending axially through the bearing section of the powder feeding shaft is arranged in the powder feeding shaft.

6. The toner filling machine of claim 5, wherein:

and a cooling air passage extending in the axial direction is also arranged between the hollow shaft and the bearing seat.

7. A toner filling machine as defined in claim 5 or 6 wherein:

the bearing section temperature sensor is used for acquiring a temperature value of the bearing section;

and the control device receives a temperature value signal transmitted by the bearing section temperature sensor, compares the temperature value signal with a preset temperature value, and increases the gas flow rate in the cooling air passage and/or reduces the rotating speed of the powder feeding shaft and/or the stirring shaft when the bearing section temperature value is higher than the preset temperature value.

8. The toner filling machine of claim 7, wherein:

the bearing section temperature sensor comprises a first temperature sensor and a second temperature sensor, the first temperature sensor is used for collecting the temperature value of the stirring shaft, and the second temperature sensor is used for collecting the temperature value of the bearing seat.

9. The toner filling machine of claim 7, wherein:

the powder mixing device is characterized by further comprising a third temperature sensor for collecting a temperature value of the powder outlet section, the control device receives a third temperature value signal transmitted by the third temperature sensor and compares the third temperature value signal with a third preset temperature value, and when the third temperature value signal is higher than the third preset temperature value, the gas flow rate in the cooling air passage is increased and/or the rotating speed of the powder conveying shaft and/or the stirring shaft is reduced.

10. The toner filling machine of claim 7, wherein:

the bearing seat is used for accommodating the carbon powder, the bearing seat is used for accommodating the bearing seat, and is used for accommodating the bearing seat.

Technical Field

The invention relates to packaging equipment for filling powdery materials into a packaging container, in particular to a carbon powder filling machine.

Background

The utility model with publication number CN206345030U discloses a powder filling mechanism for powder filling, which comprises a powder hopper, an obliquely arranged powder flowing pipeline, a stirring shaft for stirring powder in the powder flowing pipeline and a powder injecting structure for quantitatively injecting powder; the powder hopper is connected with the powder injection structure through a powder flowing pipeline; the (mixing) shaft is including being located the (mixing) shaft body that flows the powder pipeline and drive (mixing) shaft body pivoted agitator motor, and the axis of (mixing) shaft body is the level setting and is located the below of powder fill. The powder filling mechanism has the advantages of smooth powder feeding, uniform powder quality and excellent reaction in the using process.

However, as a powder filling mechanism with universality, the characteristics of certain powder such as carbon powder are not considered, the carbon powder is used as a developer for developing in an electrophotographic imaging device, the main component is resin, the carbon powder has the characteristic of no high temperature resistance, and is easy to agglomerate when heated, the agglomeration temperature of the existing color carbon powder is lower, and the influence of poor developing quality can be caused after agglomeration. Therefore, high temperature is required to be avoided from filling, transportation and storage after the carbon powder is prepared to development, and a carbon powder filling machine for filling the carbon powder into a development box is provided with a stirring shaft and a powder feeding shaft, the shaft generates high temperature due to friction with a bearing seat during rotation, the filling speed of the carbon powder is closely related to the rotating speed of the powder feeding shaft, so that the carbon powder filling machine can carry out filling at high speed to improve the production efficiency, and the carbon powder in a powder feeding bin is effectively prevented from caking due to heating, so that the problem that the prior art is not solved at low cost at present is solved; on the other hand, the prior art adopts independent stirring shaft and powder feeding shaft respectively, so that the occupied space of the carbon powder filling machine is relatively large, and the structure of the filling machine is not favorable for being compact.

Therefore, it is necessary to design a carbon powder filling machine which can effectively prevent the carbon powder from caking due to high temperature during filling and has a simple structure.

Disclosure of Invention

The invention mainly aims to provide a carbon powder filling machine which can effectively control the temperature of carbon powder to be lower than the caking temperature of the carbon powder and has higher filling speed;

it is another object of the present invention to provide a toner filling machine that is relatively small in volume.

In order to achieve the purpose, the carbon powder filling machine provided by the invention comprises a rack, a powder feeding bin arranged in the rack, a powder feeding shaft for filling carbon powder in the powder feeding bin and a bearing seat thereof; and a cooling air passage is arranged in the bearing seat and is positioned between the powder feeding shaft and the bearing seat.

According to the scheme, as the main heat source in the powder feeding bin is the bearing section in the bearing seat, the bearing section is provided with the cooling air passage between the powder feeding shaft and the bearing seat, so that heat in the powder feeding shaft, the bearing and the bearing seat can be rapidly taken away through gas flowing in the cooling air passage, and the temperature is reduced or maintained below the caking temperature of the carbon powder. Compared with the prior art without adopting the internal cooling structure of the carbon powder filling machine, the rotating speed of the powder feeding shaft can be relatively increased, and the filling speed is further increased.

The bearing temperature sensor is also arranged and used for collecting the temperature value of the bearing section; and the control device receives a temperature value signal transmitted by the bearing temperature sensor, compares the temperature value signal with a preset temperature value, and increases the gas flow rate in the cooling air passage and/or reduces the rotating speed of the powder conveying shaft when the temperature value is higher than the preset temperature value. The advantage of this scheme can effectively avoid the carbon dust caking, can control by manual observation, also can control by automation.

A further scheme is that bearing section temperature sensor includes first temperature sensor and second temperature sensor, first temperature sensor is used for gathering send the first temperature value of powder axle, second temperature sensor is used for gathering the second temperature value of bearing frame.

The powder feeding device further comprises a third temperature sensor used for collecting a temperature value of the powder outlet section, the control device receives a third temperature value signal transmitted by the third temperature sensor and compares the third temperature value signal with a third preset temperature value, and when the third temperature value is higher than the third preset temperature value, the gas flow speed in the cooling air passage is increased and/or the rotating speed of the powder feeding shaft is reduced.

The other carbon powder filling machine comprises a rack, a powder feeding bin arranged in the rack, a powder feeding shaft and a bearing seat, wherein the powder feeding shaft and the bearing seat are used for filling carbon powder in the powder feeding bin; the stirring shaft is a hollow shaft, and the powder feeding shaft is positioned in the hollow shaft in the radial direction at the bearing section; and a cooling air passage extending axially through the bearing section of the powder feeding shaft is arranged in the powder feeding shaft.

It is thus clear that by above scheme, set (mixing) shaft and powder feeding shaft to collinear interior outer axle, can be so that the volume of axle system is compact relatively, and occupation space is little relatively, sets up the cooling air flue in powder feeding shaft simultaneously, makes the heat be taken out fast and send out the powder storehouse.

The further proposal is that a cooling air passage extending axially is also arranged between the bearing section and the powder feeding shaft and between the hollow shaft and the bearing seat. This scheme makes the cooling effect show more.

A bearing section temperature sensor is further arranged and used for collecting the temperature value of the bearing section; and the control device receives a temperature value signal transmitted by the bearing section temperature sensor, compares the temperature value signal with a preset temperature value, and increases the gas flow rate in the cooling air passage and/or reduces the rotating speed of the powder feeding shaft and/or the stirring shaft when the bearing section temperature value is higher than the preset temperature value.

Still further scheme is that bearing section temperature sensor includes first temperature sensor and second temperature sensor, first temperature sensor is used for gathering the temperature value of (mixing) shaft, second temperature sensor is used for gathering the temperature value of bearing frame.

The control device receives a third temperature value signal transmitted by the third temperature sensor and compares the third temperature value signal with a third preset temperature value, and when the third temperature value signal is higher than the third preset temperature value, the gas flow rate in the cooling air passage is increased and/or the rotating speed of the powder feeding shaft and/or the stirring shaft is/are reduced.

The other further scheme is that the bearing seat device further comprises a fourth temperature sensor used for collecting a fourth temperature value of the carbon powder near the bearing seat, the control device receives a fourth temperature value signal transmitted by the fourth temperature sensor and compares the fourth temperature value signal with a fourth preset temperature value, and when the fourth temperature value signal is higher than the fourth preset temperature value, the gas flow speed in the cooling air passage is increased and/or the rotating speed of the powder conveying shaft and/or the stirring shaft is reduced.

Drawings

FIG. 1 is a perspective view of a first embodiment of a toner filling machine;

FIG. 2 is a cut-away perspective view of the powder feeding bin of FIG. 1;

FIG. 3 is a block diagram of a rotary system;

FIG. 4 is a sectional view A-A of FIG. 3;

fig. 5 is a partial enlarged view of B in fig. 4;

FIG. 6 is an enlarged cross-sectional view of C-C of FIG. 3;

FIG. 7 is an exploded view of the structure of FIG. 3;

FIG. 8 is a schematic diagram of the temperature control of the first embodiment of the toner filling machine;

FIG. 9 is a perspective view of a powder feeding mechanism in a second embodiment of the toner filling machine;

FIG. 10 is a front view of a second embodiment of a toner feed mechanism of the toner filling machine;

FIG. 11 is a cross-sectional view E-E of FIG. 10;

fig. 12 is an enlarged sectional view of F-F in fig. 10.

The invention is further illustrated by the following examples and figures.

Detailed Description

First embodiment

Referring to fig. 1, a powder feeding bin 2 is fixedly installed in a frame 1 of the toner filling machine, a hopper 21 for supplying toner to the powder feeding bin is fixed at the top of the frame 1, a tubular powder outlet section 22 is arranged at the lower end of the powder feeding bin 2, a third temperature sensor 63 is arranged on the powder outlet section 22, a seat frame 7 is arranged below the powder outlet section, and the seat frame 7 is used for supporting a developing box so as to fill the developing box with the toner sent out by the powder outlet. A control box 6 is arranged on one side of the rack 1, a control device is arranged in the control box 6, the control device can adopt a single chip microcomputer, a programmable logic controller PLC, a digital signal processor DSP, a field programmable gate array FPGA or a central processing unit CPU and the like, and a data display screen, a buzzer, a control button and the like are arranged outside the control box 6. The top of the frame is also provided with a powder feeding motor 51, a stirring motor 41, a gearbox and the like.

Referring to fig. 2, the powder feeding motor 51 drives the powder feeding shaft 5 to rotate, the stirring motor 41 drives the stirring shaft 4 to rotate in a reversing way through a gear box, and a pair of stirring frames 42 are fixed on the stirring shaft 4. The fourth temperature sensor 64 is arranged close to the bearing seat and is used for collecting a fourth temperature value of the carbon powder close to the bearing seat.

Referring to fig. 3, the bearing seat 3 is fixed at the top end of the powder feeding bin 2 and bears the powder feeding shaft 5 and the stirring shaft 4, i.e. the stirring shaft 4 rotates relative to the bearing seat 3, the powder feeding shaft 5 rotates relative to the stirring shaft 4, and two asymmetrically arranged stirring frames 42 are fixed on the stirring shaft 4. It will be appreciated that although the upper ends of the powder delivery shaft 5 and the bearing housing 3 are located axially mostly outside the powder delivery hopper 2 and only a small part is located inside the powder delivery hopper 2, the bearing housing 3 is heated too much and heat conduction still affects the carbon powder in the powder delivery hopper 2, especially the bearing 44 in this case is located inside the powder delivery hopper 2.

Referring to fig. 4 and 5, a pair of bearings 31 and 32 in a bearing seat 3 support a stirring shaft 4, the stirring shaft 4 is a hollow shaft, a pair of bearings 43 and 44 in the hollow shaft support a powder feeding shaft 5, therefore, the hollow shaft also forms a bearing seat of the powder feeding shaft 5, and the source of generating high temperature is the bearings in the bearing seat, therefore, the main idea of the present invention is to provide a cooling air passage to cool the bearing section containing the bearings in the axial direction, i.e. the cooling air passage is provided in the region of the upper bearing section in the axial direction, firstly, a section of the cooling air passage 83 is provided at the axial center of the powder feeding shaft 5, the lower end of the cooling air passage 83 is located below the bearings 44, the upper end is an air outlet 86 located above the bearings 43, secondly, a cooling air passage 82 extending in the axial direction is provided between the powder feeding shaft 5 and the stirring shaft, i.e. the stirring shaft 4, and the cooling air passage 82 is axially located between the bearings 43 and the bearings 44, finally, a cooling air duct 84 is also arranged between the hollow shaft, i.e. the stirring shaft 4, and the bearing seat 3, and the cooling air duct 84 is axially located between the bearing 31 and the bearing 32. In this embodiment, the flowing gas flows in from the pair of air inlets 81, enters the cooling air passage 82 through the lower communication hole 811 penetrating the wall of the hollow shaft, then branches, one path of the flowing gas enters the cooling air passage 84 through the communication hole 822 penetrating the wall of the hollow shaft and is discharged from the pair of air outlets 85, the other path of the flowing gas descends through the concave passage 821 on the outer wall of the powder feeding shaft 5, enters the cooling air passage 83 through the transverse communication hole 831 on the powder feeding shaft 5, and finally is discharged through the air outlet 86. A ventilation ring 9 is fixed between the pair of oil seals 33 and 34 in the axial direction, and an oil seal 45 is arranged at the lower end of the bearing 44 to prevent the oil on the bearing 44 from falling into the powder feeding bin 2 and also form the axial lower end wall of the cooling air channel.

Referring to fig. 6, a circle of air guide grooves 91 are formed in the outer wall of the air guide ring 9, four through holes 92 are further formed in the air guide grooves 91, the non-contact temperature sensor serving as the first temperature sensor 61 collects the temperature value of the stirring shaft 4 through one through hole 92, and the contact temperature sensor serving as the second temperature sensor 62 collects the temperature value of the bearing block 3. Obviously, both the non-contact temperature sensor and the contact temperature sensor are used for acquiring the temperature value of the bearing segment. The pair of gas inlets 81 also feed the flowing gas into the lower communication hole 811 through the through hole 92 and the annular chamber 921.

Referring to fig. 7, the structure of the powder feeding shaft 5, especially the structure of the concave channel 821, can be seen more clearly from fig. 7 in combination with the above-mentioned figures, the screw 52 fixed at the lower end of the powder feeding shaft 5 is located in the powder outlet section 22, and in a high-speed powder filling state, the extrusion thrust of the screw 52 can raise the temperature of the powder outlet section, so that the third temperature sensor 63 is used for collecting the temperature value of the powder outlet section, and in this case, a contact temperature sensor is also used. The structure of the venting ring 9 in this example can also be seen more clearly in fig. 7.

Referring to fig. 8, when the control device 60 receives the first temperature value measured by the first temperature sensor 61, the first temperature value is compared with a preset first preset temperature value, and when the first temperature value is higher than the first preset temperature value, the blowing power of the fan 80 is preferably increased, so that the flow rate of the gas entering the gas inlet 81 is increased to cool down, and of course, the rotation speed of the powder feeding shaft 5, that is, the rotation speed of the powder feeding motor 51, or the rotation speed of the stirring shaft 4, that is, the rotation speed of the stirring motor 41, or a combination action of the three may also be decreased; similarly, when the control device 60 receives the second temperature value measured by the second temperature sensor 62, the second temperature value is also compared with a preset second preset temperature value, and when the second temperature value is higher than the second preset temperature value, the blowing power of the fan 80 is preferably increased, so that the flow rate of the gas entering the gas inlet 81 is increased to cool, and of course, the rotation speed of the powder feeding motor 51 can be reduced, or the rotation speed of the stirring motor 41 can be reduced, or the combination of the three can be performed; when the temperature values received by the control device 60 from the third temperature sensor 63 and the fourth temperature sensor 64 are higher than the corresponding preset temperature values, the adopted cooling control means is similar to the aforementioned means, and is not described again. The preset temperature values can be comprehensively considered according to the caking temperature of different carbon powder, the specific position of a temperature measuring point and other factors, so that the sequence of the actions and the corresponding amplitude of the actions are determined, under the worst condition, the stirring motor 41 and the powder feeding motor 51 are immediately stopped, and the blowing power of the fan 80 is increased to the maximum.

Compared with the prior art, the rotating speed of the powder feeding shaft 5 can be relatively increased by about 30% through experiments under the same other conditions, namely the filling speed is increased by about 30%.

Second embodiment

The frame and other structures not closely related to the present invention are omitted in the following drawings, and those skilled in the art can implement the present invention by referring to the prior art, and the structures closely related to the present invention will be described in detail.

Referring to fig. 9 and 10, the present embodiment adopts a general structure of a conventional toner filling machine, in which a powder feeding motor 51 drives a powder feeding shaft in a powder feeding bin 2, but a heat radiation cylinder 53 with a plurality of holes is added between the powder feeding motor 51 and a bearing block 3, and a plurality of annular heat radiation fins 33 are arranged on the bearing block 3. The joint part of the bearing seat 3 and the powder bin is provided with a cooling air passage for cooling the bearing section so as to prevent heat from being transferred to the powder feeding bin, and the cooling air passage is respectively communicated with the three air inlets 81 and the two air outlets 85. The carbon powder is input into the powder feeding bin 2 through the inclined powder adding pipe 10, and the powder outlet nozzle section 22 is provided with a third temperature sensor 63.

Referring to fig. 11 and 12, the bearing seat 3 is fixed at the top end of the powder feeding bin 2, the powder feeding shaft 5 is supported by a pair of bearings 43 and 44 in the bearing seat 3, an oil seal 45 is arranged at the lower end of the bearing 44 to prevent oil on the bearing 44 from falling into the powder feeding bin 2, and an axially lower end wall of the cooling air passage 82 is also formed, and the cooling air passage 82 is located between the powder feeding shaft 5 and the bearing seat 3 when viewed radially. The screw 52 fixed at the lower end of the powder feeding shaft 5 is positioned in the powder outlet section 22, and the third temperature sensor 63 is a contact temperature sensor and is used for collecting the temperature value of the powder outlet section 22. Be provided with the bearing temperature sensor who is used for gathering bearing section temperature value on bearing frame 3, bearing section temperature sensor includes first temperature sensor 61 of non-contact and the second temperature sensor 62 of contact, and first temperature sensor 61 is used for gathering the first temperature value of sending powder axle 5, and second temperature sensor 62 is used for gathering the second temperature value of bearing frame 3.

Compared with the first embodiment, since the stirring shaft is not provided in this embodiment, the corresponding controller and control program are relatively simple, and it can be understood that the control means and method can be simply implemented with reference to fig. 8 and the above description of fig. 8.