A device for automatically screening and recycling powder of a microtome

Abstract

A kind of device for the automatic screening of slicer powder, comprising a machine body shell, a roller, a blade, a screen and a transmission device. The transmission device in the machine body shell drives the rotation of the roller, the material enters from the top feed port, is cut by the blade, the powder is recycled to the bottom of the roller through the screen and the guide plate, and the sheet material is discharged through the discharge cylinder. The screen adopts a coaxial rotating structure of upper and lower screen plates, and the size of the screen hole is adjusted by the rotating shaft knob to adapt to the screening needs of different materials. The blade is connected to the roller shaft through the blade holder rod, and the contact angle with the roller can be adjusted. The device realizes automatic powder discharge through the inclined design of the slope plate screen, without manual intervention in the screening process. The utility model solves the problems of low efficiency and serious material waste in traditional manual separation of slicer powder, has the advantages of compact structure, adjustable screening precision, high automation degree, high material recycling rate, etc. and can be widely used in the slicing production of chemical industry, food industry and other fields.

Description

Technical Field

[0001] This utility model belongs to the technical field of slicing machine equipment, and specifically relates to a device for automatic screening and recycling of powder materials from slicing machines. Background Technology

[0002] In the production process of a condenser slicer, existing technology typically handles the sliced ​​powder as follows: the material is cut by blades to form a mixture of flakes and powder, which directly enters the feeding device. The flakes and powder are then separated by a sieving device. The flakes are packaged as finished products, while the powder is bagged and transported to the production workshop, where it is manually fed into a distillation unit for reuse. This process relies on manual labor for collecting, transferring, and re-feeding the sieved powder, making automated continuous production difficult.

[0003] Existing technologies have significant drawbacks in practical applications:

[0004] Firstly, the manual involvement in many steps not only increases human resource costs but also leads to low production efficiency due to cumbersome operating procedures. Furthermore, powder materials are prone to spillage during transportation, resulting in material waste.

[0005] Secondly, the condensed material is prone to sticking and clumping due to temperature changes. The traditional fixed screen structure cannot dynamically adjust the screening accuracy, often resulting in screen clogging. Frequent shutdowns for cleaning are required. At the same time, insufficient screening causes some powder to be lost with the flakes.

[0006] Third, powder is easily contaminated when exposed to the environment. The dust raised during manual feeding not only deteriorates the production environment but also affects the cleanliness of the materials, thereby reducing the product quality of subsequent distillation processes.

[0007] Fourth, the configuration of independent screening and transfer equipment increases equipment investment and operating energy consumption. The lengthy recycling process also leads to insufficient precision in controlling material input, affecting the stability of the production process. Summary of the Invention

[0008] In view of the technical problems existing in the background art, the present invention provides a device for automatic screening and recycling of powder from a slicer, which solves the problems of low screening efficiency, serious material waste, and complex equipment maintenance in the prior art, and has significant economic benefits and environmental value.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] A device for automatic screening and recycling of powder from a slicer includes a housing, blades, and a screen. Inside the housing, there is a roller and a transmission device. The transmission device drives the roller to rotate around its own axis. A feed inlet is located at the top of the housing. Blades are located on the side of the roller. A guide plate and a discharge cylinder are located on the other side of the blades. The guide plate and the discharge cylinder are separated by the screen. The discharge cylinder is connected to the discharge outlet at the bottom of the housing.

[0011] In a preferred embodiment, the screen is positioned on top of the guide plate, forming a downward-sloping plate with one end close to the blade and the other end close to the top opening of the feed cylinder. The bottom of the guide plate is connected to the bottom surface of the roller inside the machine housing.

[0012] In a preferred embodiment, the bottom surface of the blade is fixedly connected to the outer wall of the blade holder rod, and a roller is provided at the axis of the blade holder rod. The two ends of the roller are rotatably connected to the inner wall of the machine body shell. The rotation of the blade holder rod can adjust the contact angle between the blade and the roller.

[0013] In a preferred embodiment, the screen includes an upper screen plate and a lower screen plate, which are coaxially arranged. The lower end face of the upper screen plate and the upper end face of the lower screen plate are rotatably connected. Screen holes are correspondingly opened on the upper and lower screen plates. The upper and lower screen plates can rotate relative to each other and adjust the size of the screen holes.

[0014] In a preferred embodiment, a rotating shaft is vertically arranged at the center of the lower screen plate, and the other end of the rotating shaft passes through the upper screen plate. A knob is provided at the end of the rotating shaft, and rotating the rotating shaft can drive the lower screen plate to rotate.

[0015] In a preferred embodiment, an annular groove is provided on the upper end face of the lower screen plate, and an annular guide rail is correspondingly provided on the lower end face of the upper screen plate. The lower end face of the upper screen plate is engaged with each other through the guide rail and the groove.

[0016] In a preferred embodiment, the transmission device includes a transmission motor, a transmission shaft, and a transmission belt; the transmission shaft is perpendicularly connected to the axis of the drum, and the rotation of the transmission shaft can drive the drum to rotate around its own axis; the end of the transmission shaft is connected to the transmission rod of the transmission motor via the transmission belt.

[0017] A device for automatic screening and recycling of powder from a slicer, which can achieve the following beneficial effects in practical use:

[0018] 1. The device achieves full automation of the powder material processing from cutting and screening to recycling through the linkage of the roller and transmission device, combined with the screening and recycling design of the guide plate and discharge cylinder. Compared with the cumbersome process of manual bagging, transportation and feeding in traditional processes, this device can reduce more than 90% of the manual intervention, significantly reducing labor costs, while avoiding material spillage and batch mixing problems caused by manual operation;

[0019] 2. A rotatable and adjustable double-layer sieve disc is adopted. The sieve aperture size is adjusted by the linkage of the rotating shaft and the knob, which can adapt to the particle size characteristics of different condensed materials. This structure can avoid the clogging problem caused by material adhesion and agglomeration in traditional fixed sieves, and can achieve precise grading of powder through dynamic adjustment of sieve aperture, while reducing the loss of qualified powder with the flakes.

[0020] 3. The screened powder is directly returned to the slicer's hopper via a guide plate for recycling, eliminating the need for additional transfer equipment and secondary feeding in the distillation process. This design not only significantly improves the material recycling rate and reduces raw material consumption, but also saves energy in the powder transportation and storage process.

[0021] 4. The fully enclosed outer shell and automatic material return system prevent powder from being exposed to the environment and causing dust pollution, thus improving the production environment. At the same time, the contact angle between the blade and the roller can be adjusted by the blade holder rod to adapt to the cutting needs of materials with different hardness, reduce production fluctuations caused by changes in material properties, and improve process stability. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is an internal sectional view of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the blade and screen structure of this utility model;

[0025] Figure 3 This is an exploded view of the screen structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the transmission device structure of this utility model.

[0027] In the diagram: 1. Machine casing; 2. Feed inlet; 3. Transmission device; 301. Transmission motor; 302. Transmission shaft; 303. Transmission belt; 4. Blade; 5. Screen; 5. Upper screen plate; 501. Lower screen plate; 502. Rotating shaft; 503. Screen hole; 504. Guide rail; 505. Slide groove; 506. Drum; 6. Blade holder rod; 7. Guide plate; 8. Feeding cylinder; 9. Detailed Implementation

[0028] like Figure 1 and Figure 4As shown, a specific embodiment of a device for automatic screening and recycling of powder from a slicer is as follows: The outer shell 1 of the device is welded from stainless steel, with an internal hollow structure forming a working chamber. The top feed inlet 2 is connected to the material output flange of the slicer. A drum 6 is horizontally positioned inside the outer shell 1, its axis fixed to the inner wall of the outer shell 1 via a bearing seat. The drive shaft 302 of the transmission device 3 is welded perpendicularly to the axis of the drum 6, and the drive shaft 302 is connected to the output shaft of the drive motor 301 via a drive belt 303. When the drive motor 301 starts, it drives the drive shaft 302 to rotate via the drive belt 303, thereby driving the drum 6 to rotate around its own axis at a speed of 10-30 r / min. Blades 4 are bolted to the side of the drum 6. A guide plate 8 and a discharge cylinder 9 are provided on the other side of the blade 4, separated by a screen 5. The bottom of the discharge cylinder 9 passes through the bottom discharge port of the outer shell 1, used to discharge the screened sheet material.

[0029] Preferred solutions include Figure 1 As shown, the screen 5 is made of perforated steel plate and is fixed to the top of the guide plate 8, forming a downward-sloping structure of 15°-30°. The high end of the screen 5 is close to the blade 4, and the low end corresponds to the top opening of the feed cylinder 9. When the material falls onto the screen 5 after being cut by the blade 4, the powder falls through the screen holes to the guide plate 8 and slides down along the guide plate 8 to the bottom surface of the roller 6 inside the machine body shell 1, realizing material return; while the sheet material slides into the feed cylinder 9 along the slope of the screen 5. The bottom of the guide plate 8 is connected to the bottom area of ​​the roller 6 through an arc transition structure to ensure that the powder flows smoothly back to the cutting area.

[0030] Preferred solutions include Figure 2 As shown, the bottom surface of the blade 4 is fixedly connected to the outer wall of the blade holder 7 by bolts. A roller is mounted at the axis of the blade holder 7, and both ends of the roller are rotatably connected to the inner wall of the machine housing 1 through bearings. The operator can manually rotate the blade holder 7 to adjust the contact angle between the blade 4 and the roller 6 by rotating the roller. The adjustment range is 0° to 45°. This structure can adjust the cutting angle according to the hardness of the material. For example, the contact angle can be increased when cutting harder materials to improve cutting efficiency, and the angle can be decreased when cutting brittle materials to reduce powder generation.

[0031] Preferred solutions include Figure 2 and Figure 3As shown, the upper screen plate 501 and lower screen plate 502 of the screen 5 are coaxially designed and are rotatably connected by an annular guide rail 505 and an annular groove 506. An annular groove 506 is formed on the upper end face of the lower screen plate 502, and a matching annular guide rail 505 is provided on the lower end face of the upper screen plate 501. The guide rail 505 is embedded in the groove 506 to form a rotating pair. Circular screen holes 504 are correspondingly formed on the upper screen plate 501 and lower screen plate 502. By rotating the upper screen plate 501 or the lower screen plate 502, the screen holes 504 can be misaligned and overlapped, thereby adjusting the effective screening area of ​​the screen holes. For example, when screening fine powder, the screen holes 504 are fully aligned to increase the aperture; when screening coarse particles, the screen plates are rotated to partially overlap the screen holes to decrease the aperture.

[0032] Preferred solutions include Figure 2 and Figure 3 As shown, a rotating shaft 503 is vertically welded to the center of the lower screen plate 502. The rotating shaft 503 passes through the central hole of the upper screen plate 501 and extends to the outside of the machine casing 1. A knob is fixed to the end of the rotating shaft 503. When the operator rotates the knob, the rotating shaft 503 rotates, thereby driving the lower screen plate 502 to rotate relative to the upper screen plate 501. To ensure that the position is fixed after adjustment, a positioning groove is provided on the rotating shaft 503, and a retaining spring is correspondingly provided on the inside of the knob. When adjusted to the required screen hole size, the retaining spring is inserted into the groove to lock it in place.

[0033] Preferred solutions include Figure 4 As shown, the drive motor 301 of the transmission device 3 is a speed-regulating motor, and its output speed can be adjusted by a frequency converter. The drive shaft 302 is rigidly connected to the shaft of the roller 6 through a coupling to ensure stable power transmission. The drive belt 303 adopts a synchronous belt structure to avoid slippage. The end of the drive shaft 302 is connected to the drive rod of the drive motor 301 through a pulley. A protective cover is installed on the outside of the pulley to improve the safety of equipment operation. When it is necessary to replace the roller 6 with a different specification, the coupling bolts can be loosened to disassemble the connection between the drive shaft 302 and the roller 6, which facilitates equipment maintenance and component replacement.

[0034] In the above embodiments, all components are connected using detachable structures, such as bolt connections and slot connections, facilitating equipment installation and maintenance. The upper screen plate 501 and lower screen plate 502 of the screen 5 can be selected with different aperture sizes according to the material characteristics. Dynamic control of the screening accuracy is achieved through knob adjustment, meeting the slicing requirements of different materials. During operation, material enters through the feed inlet 2, is cut by the rotating drum 6 driving the blades 4, and the powder falls through the screen 5 into the guide plate 8, returning to the bottom of the drum 6. The flaky material is discharged through the discharge cylinder 9, realizing automatic screening and reuse of powder, reducing manual intervention and material waste.

[0035] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A device for automatic screening and recycling of powders from a microtome, comprising a machine body (1), a knife (4) and a screen (5), characterized in that: The outer shell (1) of the machine body is provided with a roller (6) and a transmission device (3). The transmission device (3) drives the roller (6) to rotate around its own axis. The top of the outer shell (1) is provided with a feed inlet (2). The side of the roller (6) is provided with a blade (4). The other side of the blade (4) is provided with a guide plate (8) and a discharge cylinder (9). The guide plate (8) and the discharge cylinder (9) are separated by a screen (5). The discharge cylinder (9) is connected to the bottom discharge port of the outer shell (1).

2. The device for automatic screening and recycling of powder from a slicer according to claim 1, characterized in that: The screen (5) is set on the top of the guide plate (8). The screen (5) forms a slope plate with one end sloping downward. One end of the screen (5) is close to the blade (4), and the other end of the screen (5) is close to the top opening of the feed cylinder (9). The bottom of the guide plate (8) is connected to the bottom surface of the roller (6) inside the machine body shell.

3. The device for automatic screening and recycling of powder from a slicer according to claim 1, characterized in that: The bottom surface of the blade (4) is fixedly connected to the outer wall of the blade holder rod (7). A roller is provided at the axis of the blade holder rod (7). The two ends of the roller are rotatably connected to the inner wall of the outer shell (1) of the machine body. The rotation of the blade holder rod (7) can adjust the contact angle between the blade (4) and the roller (6).

4. The device for automatic screening and recycling of powder from a slicer according to claim 1, characterized in that: The screen (5) includes an upper screen plate (501) and a lower screen plate (502). The upper screen plate (501) and the lower screen plate (502) are coaxially arranged. The lower end face of the upper screen plate (501) and the upper end face of the lower screen plate (502) are rotatably connected. The upper screen plate (501) and the lower screen plate (502) are respectively provided with screen holes (504). The upper screen plate (501) and the lower screen plate (502) rotate relative to each other and adjust the size of the screen holes (504).

5. The device for automatic screening and recycling of powder from a slicer according to claim 4, characterized in that: A rotating shaft (503) is vertically arranged at the center of the lower screen plate (502). The other end of the rotating shaft (503) passes through the upper screen plate (501). A knob is provided at the end of the rotating shaft (503). Rotating the rotating shaft (503) can drive the lower screen plate to rotate.

6. The device for automatic screening and recycling of powder from a slicer according to claim 4, characterized in that: An annular groove (506) is provided on the upper end face of the lower screen plate (502), and an annular guide rail (505) is correspondingly provided on the lower end face of the upper screen plate (501). The lower end face of the upper screen plate (501) is engaged with each other through the guide rail (505) and the groove (506).

7. The device for automatic screening and recycling of powder from a slicer according to claim 1, characterized in that: The transmission device (3) includes a transmission motor (301), a transmission shaft (302) and a transmission belt (303); the transmission shaft (302) is perpendicularly connected to the axis of the drum (6), and the rotation of the transmission shaft (302) can drive the drum (6) to rotate around its own axis. The end of the transmission shaft (302) is connected to the transmission rod of the transmission motor (301) through the transmission belt (303).

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