CN209973744U - A doffer for system appearance system - Google Patents
A doffer for system appearance system Download PDFInfo
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- CN209973744U CN209973744U CN201920187501.3U CN201920187501U CN209973744U CN 209973744 U CN209973744 U CN 209973744U CN 201920187501 U CN201920187501 U CN 201920187501U CN 209973744 U CN209973744 U CN 209973744U
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Abstract
The utility model discloses a blanking device for a sample preparation system, which comprises a blanking hopper and a flattening component; the blanking hopper is provided with at least 2 material distribution channels, and the discharge port of each material distribution channel is provided with a blanking door; the flattening assembly comprises a driving assembly and a flattening rod; the flattening rod is connected with the driving assembly, is positioned in the blanking hopper and can move above the inlet of the material distribution channel under the driving of the driving assembly. The device has the advantages of simple structure, flexible control, high-precision sample distribution and the like.
Description
Technical Field
The utility model relates to an automatic system appearance field especially relates to a doffer for system appearance system.
Background
The traditional manual sample preparation has high labor intensity and severe sample preparation environment, and the representativeness of a sample is easily influenced by human factors. Automatic system appearance effectively alleviates workman intensity of labour, promotes workman's operational environment, guarantees simultaneously that whole system appearance in-process does not have the human factor influence, and automatic system appearance replaces traditional artifical system appearance to be the development trend in system appearance field.
The existing automatic sample preparation equipment comprises a sample halving device. As shown in fig. 1 (a), the operation principle is that the belt carries the coal flow to run horizontally at a speed of V2, the scraper runs at a speed of V1 and runs vertical to the belt, the scraper takes the coal on the belt to a divider, and the coal flow is divided into two parts and enters a sample bottle a and a sample bottle B to be packaged. In the coal taking process of the scraper, the side a of the coal facing side in the figure 1 is extruded and collided with the running coal flow 3 to increase the thickness of the coal flow in a certain area, the overflowing coal flow can be quickly taken away by the scraper along with the running of a belt, most of the coal is taken in near the side a due to the high speed of the scraper, and a coal cross-sectional view shown by A-A in the figure 1 (b) is formed, and more coal is near the side a and less coal is near the side b. After the coal sample is divided into two parts, the coal sample in the sample bottle A is more, and the coal sample in the sample bottle B is less. Experimental data also show that as the belt speed increases, the coal sample weight differential will increase. Since the accuracy of the coal sample analysis is affected by the presence of such a situation, further improvement is necessary.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides a simple structure, control is nimble, can the high accuracy carry out the doffer that is used for system appearance system that distributes to the sample.
In order to solve the technical problem, the utility model provides a technical scheme does: a blanking device for a sample preparation system comprises a blanking hopper and a flattening assembly;
the blanking hopper is provided with at least 2 material distribution channels, and the discharge port of each material distribution channel is provided with a blanking door;
the flattening assembly comprises a driving assembly and a flattening rod;
the flattening rod is connected with the driving assembly, is positioned in the blanking hopper and can move above the inlet of the material distribution channel under the driving of the driving assembly.
Further, the material distributing channel is formed by separating a separating plate arranged in the blanking hopper.
Furthermore, the driving assembly is arranged below the partition plate, and a transmission shaft of the driving assembly penetrates through the partition plate and is connected with the flattening rod;
the spreader bar is rotatable under the drive of the drive assembly.
Further, the driving assembly is arranged at the opening of the blanking hopper; the flattening rod comprises a connecting part and a flattening part;
the connecting part is connected with the driving assembly and extends into the blanking hopper;
the flattening part and the connecting part can reciprocate under the driving of the driving component.
Further, the drive assembly comprises a slide bar and a driver; the connection part of the flattening rod is sleeved on the sliding rod, and the driver drives the flattening rod to slide on the sliding rod through a transmission part.
Further, the device comprises 2 sliding rods which are respectively arranged on two sides of the opening of the blanking hopper; two ends of the flattening part are respectively provided with a connecting part, and 2 connecting parts are respectively sleeved on 2 sliding rods; the driver is a driving motor, and the transmission part is in belt transmission or chain transmission.
Further, the driving assembly is a lead screw driving assembly; the connecting part is sleeved on the screw rod driving assembly.
Further, the leveling rod has a wedge-shaped top, and the bottom of the leveling rod is provided with leveling teeth.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a doffer simple structure, the processing cost is low, is convenient for implement, need not basically carry out the basis of changing to the sweeping flow of current system appearance in-process through this doffer, can accurately distribute the material article to can satisfy the requirement of system appearance standard.
2. The utility model discloses a doffer's the top of parts such as spreading out flat pole, division board is for carving the shape, consequently can not remaining sample at its top, can effectively prevent the remaining compounding that causes of sample.
3. Through adopting the utility model discloses a doffer need not increase too much extra action at the system appearance in-process to make the flow of system appearance more tight and short, the required time of system appearance process is shorter, improves system appearance efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a sample preparation system in the prior art.
Fig. 2 is a schematic diagram of a blanking device in the prior art.
Fig. 3 is a schematic structural view of a blanking device according to a first embodiment of the present invention (a-a in the figure is a cross-sectional view).
Fig. 4 is a schematic sectional view of a part of the blanking device according to the first embodiment of the present invention (along the section line a-a in fig. 3).
Fig. 5 is a schematic structural view of a blanking device according to the second embodiment of the present invention.
Fig. 6 is a schematic structural view of a blanking device according to the third embodiment of the present invention.
Illustration of the drawings: 1. a squeegee; 2. a belt; 3. coal sample; 4. a bisection device; 5. a sample bottle A; 6. a sample bottle B; 7. a material distributing baffle plate;
101. a blanking hopper; 102. a partition plate; 103. a blanking door; 104. a material distributing channel; 105. a drive assembly; 106. flattening the rods; 107. a connecting portion; 108. a flattening section; 109. a slide bar; 110. and a lead screw.
Detailed Description
The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.
The first embodiment is as follows: as shown in fig. 3, the blanking device for the sample preparation system of the present embodiment includes a blanking hopper and a leveling assembly; the blanking hopper is provided with at least 2 material distribution channels, and the discharge port of each material distribution channel is provided with a blanking door; the flattening assembly comprises a driving assembly and a flattening rod; the flattening rod is connected with the driving assembly, is positioned in the blanking hopper and can move above the inlet of the material distribution channel under the driving of the driving assembly. The material distributing channel is formed by separating a separating plate arranged in the blanking hopper. The driving assembly is arranged below the partition plate, and a transmission shaft of the driving assembly penetrates through the partition plate and is connected with the flattening rod; the spreader bar is rotatable by a drive assembly. The blanking door is omitted in fig. 1.
The cross section of the blanking device in fig. 3 and 4 of this embodiment is circular, the lower half part of the blanking hopper is divided into 2 material distributing channels by the dividing plate, and the 2 material distributing channels are the same in size. The partition plate is obliquely arranged in the blanking loading hopper, the top of the partition plate is wedge-shaped, and the top of the leveling rod is wedge-shaped, namely, is a sharp top, so that the material cannot be piled at the top. The driving assembly can be a driving motor, an output shaft of the driving motor is connected with the flattening rod, the flattening rod is driven to rotate, and therefore when the height of a sample in the blanking hopper exceeds the height of the flattening rod, the sample is flattened, and the effect of evenly distributing the sample is achieved. Of course, the driving mode may be a belt mode or a gear transmission mode, and the like, and the flattening rod is driven to rotate by being transmitted with other external driving devices through a belt pulley or a gear. The rotation in this embodiment includes a circular rotation or a sector rotation.
It should be noted that the specific embodiment of the blanking device is not limited to that shown in fig. 3 and 4, and the number of the material distribution channels is not limited to 2, and the blanking device may be set according to the number of distributed copies. The material distributing channels are not limited to be identical in size, and the material distributing channels with different sizes can be arranged according to the proportion distribution requirement of sample preparation. The material falling hopper in the embodiment can be divided into several parts, one part is arranged above the material falling passage, each material dividing passage is one part, and the parts are connected together by welding or bolts, so that the material falling hopper with the same function as the material falling hopper can be formed. The cross section of the blanking device does not need to be circular, and the flattening rod can rotate only by ensuring that the flattening rod is circular and is only an optimal scheme. The shape of the discharge port of the material distribution channel can be set according to the requirement.
In this embodiment, the blanking device is further described with reference to a blanking method, and the blanking device for the sample preparation system of this embodiment can blank by using the following blanking method, including the following steps: s1, the blanking device receives the sample when the blanking door is closed; s2, flattening the sample in the blanking device through a flattening component of the blanking device; and S3, opening a blanking door by the blanking device and outputting a sample.
In this embodiment, the spreader assembly causes a sample having a height above the spreader bar to be spread by rotation of the spreader bar. Preferably, after step S1 is completed, that is, after the sample of the process completely falls into the blanking device, the flattening assembly is started. In the flattening process, the flattening rod preferably rotates forwards for a certain number of turns and then rotates backwards for a certain number of turns, and the specific number of turns can be set according to needs, preferably 3 to 5 turns.
In this embodiment, it is further preferable that, in step S2, the method further includes detecting the height of the sample in the material dropping device, and when the height of the sample exceeds the leveling rod of the leveling assembly, the leveling assembly is activated to level the sample in the material dropping device. In the present step, the detection of the height of the sample may be performed while the sample is received in step S1, and when it is detected that the height of the sample exceeds the height of the leveling bar, the sample may be leveled by the rotation of the leveling bar while the sample is received in step S1; the mode can prevent the flattening rod from being blocked when the samples are excessive, and the sample receiving and flattening are carried out synchronously, thereby further improving the efficiency. Of course, the height of the sample may be detected after completion of step S1; the method has the advantage that the working time of the flattening assembly can be shortened, and the flattening assembly can be opened to work as required after the sample is received.
Example two:
as shown in fig. 5, the blanking device for the sample preparation system of the present embodiment is substantially the same as the first embodiment, and includes a blanking hopper and a flattening assembly; the blanking hopper is provided with at least 2 material distribution channels, and the discharge port of each material distribution channel is provided with a blanking door; the flattening assembly comprises a driving assembly and a flattening rod; the flattening rod is connected with the driving assembly, is positioned in the blanking hopper and can move above the inlet of the material distribution channel under the driving of the driving assembly. The material distributing channel is formed by separating a separating plate arranged in the blanking hopper.
In this embodiment, the spreader assembly is independent of the drop hopper. The flattening assembly can be fixedly arranged on the machine frame outside the blanking hopper, and of course, can also be fixed on the blanking hopper. The flattening rod extends into the blanking hopper from an opening above the blanking hopper, and materials in the blanking hopper are flattened through rotation.
The blanking method adopted by the blanking device for the sample preparation system in the embodiment is basically the same as that in the first embodiment.
Example three:
as shown in fig. 6, the blanking device for the sample preparation system of the present embodiment includes a blanking hopper and a leveling assembly; the blanking hopper is provided with at least 2 material distribution channels, and the discharge port of each material distribution channel is provided with a blanking door; the flattening assembly comprises a driving assembly and a flattening rod; the flattening rod is connected with the driving assembly, is positioned in the blanking hopper and can move above the inlet of the material distribution channel under the driving of the driving assembly. The material distributing channel is formed by separating a separating plate arranged in the blanking hopper.
In the embodiment, the driving assembly is arranged at the opening of the blanking hopper; the flattening rod comprises a connecting part and a flattening part; the connecting part is connected with the driving assembly and extends into the blanking hopper; the flattening part and the connecting part can reciprocate under the driving of the driving assembly.
In this embodiment, the driving assembly includes a slide bar and a driver; the connecting part of the flattening rod is sleeved on the sliding rod, and the driver drives the flattening rod to slide on the sliding rod through the transmission part. Further, the device comprises 2 sliding rods which are respectively arranged at two sides of the opening of the blanking hopper; two ends of the flattening part are respectively provided with a connecting part, and 2 connecting parts are respectively sleeved on 2 sliding rods; the driver is a driving motor, and the transmission part is belt transmission or chain transmission.
In the present embodiment, the driving assembly is a lead screw driving assembly; the connecting part is sleeved on the screw rod driving component. The flattening rod is provided with a wedge-shaped top, and the bottom of the flattening rod is provided with flattening teeth. Through setting up the shakeout tooth, can be so that the shakeout effect is better, also prevented when the sample of great granularity, the sample that can cause blocks the condition of shakeout pole.
As shown in fig. 6, the basic principle of this embodiment is substantially the same as that of the first embodiment, except that the receiving hopper is square, and the flattening assembly horizontally reciprocates in the receiving hopper. In this embodiment, respectively set up a slide bar or lead screw in the relative both sides of the opening part of blanking fill, the flattening pole is "U" shape, by the shakeout portion that is located the centre, and connect the connecting portion at shakeout portion both ends and constitute, the connecting portion suit at both ends is on slide bar or lead screw, thereby stretch into the blanking fill in the shakeout portion that will be located "U" shape bottom, when connecting portion round trip movement on slide bar or lead screw, make shakeout portion sweep divide the material passageway, thereby shakeout the sample in the blanking fill.
It should be noted that two opposite sides of the opening of the blanking hopper can be respectively provided with a slide bar, the slide bars play a role in guiding and are used for stabilizing the running path of the leveling rod, and meanwhile, a driving motor is arranged and pulls the leveling rod to move on the slide bars in a belt transmission or gear transmission mode to realize leveling. Other driving modes can be adopted under the mode, for example, a tooth groove is formed in the slide bar, a driving motor is arranged on the leveling rod, a gear is arranged on the driving motor, the gear is matched with the tooth groove, and the leveling rod is driven to move on the slide bar through the transfer of the gear.
In addition, a slide bar and a lead screw may be provided, as shown in fig. 6. Or two lead screws are arranged and simultaneously play a role in driving the spreading rod and stabilizing the moving path of the spreading rod. The leveling rod is driven through the screw rod, and the stability is higher.
The above-mentioned scheme that two slide bars are adopted, or one slide bar and one lead screw are adopted, or two lead screws are adopted is the preferable scheme, and of course, the scheme that only one slide bar is arranged, or only one lead screw is arranged can also be adopted. At this time, the spreading rod is composed of a spreading part and a connecting part connected to one end of the spreading part, and the spreading rod is L-shaped. At this time, since the driving and stabilizing of the leveling rod are both dependent on the one connecting portion, the stability is relatively poor, and in order to ensure the strength, the connecting portion may be reinforced, or a material with higher strength may be used to ensure the strength.
The blanking method adopted by the blanking device for the sample preparation system in the embodiment is basically the same as that in the first embodiment, except that the flattening process of the flattening rod is implemented by the reciprocating motion of the flattening rod, rather than the rotating motion in the first embodiment.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a doffer for system of making appearance which characterized in that: comprises a blanking hopper and a flattening component;
the blanking hopper is provided with at least 2 material distribution channels, and the discharge port of each material distribution channel is provided with a blanking door;
the flattening assembly comprises a driving assembly and a flattening rod;
the flattening rod is connected with the driving assembly, is positioned in the blanking hopper and can move above the inlet of the material distribution channel under the driving of the driving assembly.
2. The blanking device for the sample preparation system according to claim 1, wherein: the material distributing channel is formed by separating a separating plate arranged in the blanking hopper.
3. The blanking device for the sample preparation system according to claim 2, wherein: the driving assembly is arranged below the partition plate, and a transmission shaft of the driving assembly penetrates through the partition plate and is connected with the flattening rod;
the spreader bar is rotatable under the drive of the drive assembly.
4. The blanking device for the sample preparation system according to claim 2, wherein: the driving assembly is arranged at the opening of the blanking hopper; the flattening rod comprises a connecting part and a flattening part;
the connecting part is connected with the driving assembly and extends into the blanking hopper;
the flattening part and the connecting part can reciprocate under the driving of the driving component.
5. The blanking device for the sample preparation system according to claim 4, wherein: the driving assembly comprises a sliding rod and a driver; the connection part of the flattening rod is sleeved on the sliding rod, and the driver drives the flattening rod to slide on the sliding rod through a transmission part.
6. The blanking device for the sample preparation system according to claim 5, wherein: the blanking device comprises 2 sliding rods which are respectively arranged at two sides of an opening of the blanking hopper; two ends of the flattening part are respectively provided with a connecting part, and 2 connecting parts are respectively sleeved on 2 sliding rods; the driver is a driving motor, and the transmission part is in belt transmission or chain transmission.
7. The blanking device for the sample preparation system according to claim 4, wherein: the driving assembly is a lead screw driving assembly; the connecting part is sleeved on the screw rod driving assembly.
8. The blanking device for the sample preparation system according to any one of claims 1 to 7, wherein: the flattening rod is provided with a wedge-shaped top, and the bottom of the flattening rod is provided with flattening teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187501.3U CN209973744U (en) | 2019-01-31 | 2019-01-31 | A doffer for system appearance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920187501.3U CN209973744U (en) | 2019-01-31 | 2019-01-31 | A doffer for system appearance system |
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| CN209973744U true CN209973744U (en) | 2020-01-21 |
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| CN201920187501.3U Active CN209973744U (en) | 2019-01-31 | 2019-01-31 | A doffer for system appearance system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607236A (en) * | 2019-01-31 | 2019-04-12 | 湖南三德科技股份有限公司 | A kind of doffer and blanking method for sample-preparing system |
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2019
- 2019-01-31 CN CN201920187501.3U patent/CN209973744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607236A (en) * | 2019-01-31 | 2019-04-12 | 湖南三德科技股份有限公司 | A kind of doffer and blanking method for sample-preparing system |
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