CN207857325U - Screw classifying screens machine - Google Patents

Abstract

The utility model discloses a spiral grading and screening machine. The key point of the technical scheme is to include a feeding device and a grading and screening device arranged on the feeding device. One end of the grading and screening device is a material inlet, and the other end is a material outlet. The grading and screening device includes a grading and screening mechanism, and the grading and screening mechanism includes three interconnected primary sieve cylinders, secondary sieve cylinders and tertiary sieve cylinders, and the primary sieve cylinder, secondary sieve cylinder and tertiary sieve cylinder There are sieve holes with increasing apertures on the top, and the unloading device includes a foot on the ground and a feed chute arranged on the foot. A scraping mechanism is arranged at the top edge of the feed chute, and the scraping mechanism It includes a scraper plate and fixed plates fixedly connected to both sides of the scraper plate. The fixed plate is detachably fixedly connected with the lower chute. Butting, to achieve the effect of not blocking the screen hole.

Description

Spiral grading and screening machine

technical field

The utility model relates to the technical field of strawberry processing machinery, in particular to a spiral grading and screening machine.

Background technique

With the development of social economy, people's living standards are constantly improving, and the requirements for food are getting higher and higher. High-quality fruits are often used in the way of classification, packaging, and branding. On the one hand, it can ensure people's demand for safe and high-quality fruits. Demand, on the other hand, can increase the added value of fruits. Among them, dried strawberry is a fruit with high value, good taste and large market demand. In the process of making dried strawberries, it is particularly important to sort the size of frozen strawberries before processing strawberries. For companies that produce dried strawberries in large quantities, strawberry sorting machines are essential.

Existing reference can be made to the Chinese patent whose application publication number is CN 105234065 A, which discloses a caddis worm grading and screening machine, including a feeding device, a feeding port and a feeding port positioned at both ends of the feeding device, and the feeding port There are at least two sieve rings at positions opposite to the outlet. The sieve frame ring is connected by a plurality of equidistant sorting rods to form a screening cylinder, and a through hole for herbivorous silkworms to pass is opened on the screening cylinder, a grading hopper is provided at the bottom of the screening cylinder, and one end of the feeding device is provided with a driving screening Drum rotation gear. The other end is provided with idler rollers for holding up the screening drum.

But, in the classifying and screening machine described above, because the screening cylinder is in the engineering of work, the strawberry may just be stuck in the sieve hole of the sieve cylinder, causing the sieve hole of the sieve cylinder to be blocked.

Utility model content

The purpose of this utility model is to provide a spiral grading and screening machine. By setting a scraping plate on the unloading device, the strawberries stuck in the sieve holes can be scraped back into the sieve cylinder, which has the advantage of not blocking the sieve holes. .

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

A spiral grading and screening machine, comprising a feeding device and a grading and screening device arranged on the feeding device, one end of the grading and screening device is a feed port, and the other end is a discharge port, and the grading and screening device includes a grading and screening mechanism, The classification and screening mechanism includes three interconnected primary screen drums, secondary screen drums and third-stage screen drums. The primary screen drums, secondary screen drums, and third-stage screen drums are provided with sieve holes with sequentially increasing apertures. , the unloading device includes a foot on the ground and a feed trough arranged on the foot, a scraper mechanism is provided at the top edge of the feed trough, and the scraper mechanism includes a scraper plate and is fixedly connected to the scraper The fixed plates on both sides of the plate are detachably and fixedly connected to the lower trough, and the scraper plates are in contact with the primary screen drum, the secondary screen drum and the third-stage screen drum.

By adopting the above scheme, the strawberries enter the grading and screening mechanism, and the strawberries rotate in the primary, secondary, and tertiary sieve cylinders. The strawberries may just get stuck in the sieve holes, causing the sieve holes to be blocked. Strawberries stuck in the sieve holes are scraped back into the primary, secondary and tertiary sieve cylinders, making them continue to rotate and screen in the sieve cylinders without blocking the sieve holes.

Preferably, brushes are fixed on the material plate, and the brushes abut against the primary screen drum, the secondary screen drum and the tertiary screen drum.

By adopting the above solution, the scraping plate directly contacts the strawberries, which may crush the strawberries, and the end of the brush exerts pressure on the strawberries, which can effectively reduce damage to the strawberries.

Preferably, a fixing seat is provided on the upper side of the fixing plate, and the fixing seat fits on the fixing plate and is fixed on the discharge trough by bolts.

By adopting the above scheme, after one end of working time, a large amount of strawberry residue will stick to the brush, and the fixing seat fixes the fixing plate and the feeding device through bolts. When the scraper needs to be disassembled, just unscrew the bolts, The scraper can be removed from the unloading device, which is convenient for replacing the scraper and cleaning the brushes of the scraper.

Preferably, the detachable and fixed connections between the primary screen drum and the secondary screen drum and between the secondary screen drum and the tertiary screen drum are detachable.

By adopting the above-mentioned scheme, after the first-stage sieve cylinder, the second-stage sieve cylinder and the third-stage sieve cylinder have been working for a period of time, a small amount of strawberry residue and strawberry powder will remain on the sieve cylinder, and the first-stage sieve cylinder, the second-stage sieve cylinder and the The three-stage screen cylinders are detachable for easy cleaning.

Preferably, a bump is provided at the end of the primary screen cylinder away from the feed inlet, and a groove matching the bump is provided at the end of the secondary screen cylinder close to the feed inlet, and the secondary screen cylinder and the third The stage sieve drums are also connected by a lug-and-groove fit.

By adopting the above-mentioned scheme, when in use, the protrusions on the primary screen cylinder and the grooves on the secondary screen cylinder can be plugged together, and the primary screen cylinder and the secondary screen cylinder can be connected together. Connecting the secondary screen cylinder and the tertiary screen cylinder, the primary screen cylinder, the secondary screen cylinder and the tertiary screen cylinder can be connected together, which is convenient for installation and disassembly.

Preferably, spiral vanes are respectively arranged in the primary screen drum, the secondary screen drum and the tertiary screen drum.

By adopting the above scheme, when the strawberries enter the primary screen cylinder from the feeding port, the rotation of the screen cylinder drives the spiral blades in the screen cylinder to rotate, and the circumferential rotation of the spiral blades drives the strawberries to the secondary screen cylinder and the third-stage screen. Conveying in the cylinder, the spiral leaf can facilitate the conveying of strawberries.

Preferably, through holes are opened on the helical blade, and the diameter of the through holes is the same as that of the sieve holes.

By adopting the above scheme, when the helical leaf rotates, the strawberries may not be in contact with the inner wall of the sieve cylinder, and they will be transported to the next sieve cylinder, causing some small strawberries to be unable to be screened out from the smaller sieve holes. There is a round hole, so that the strawberries on the spiral leaves can be screened out from the round hole, and then screened out through the sieve holes on the sieve cylinder, so that the size of the screen is more accurate.

Preferably, the blanking device is provided with a partition, and the partition evenly divides the blanking device into a first hopper, a second hopper, and a third hopper, and the first hopper, the second hopper And the third lower hopper is respectively located directly under the primary screen drum, the secondary screen drum and the tertiary screen drum.

By adopting the above scheme, during the rotation process of the grading and screening mechanism, strawberries of different sizes fall from the sieve holes of the primary sieve cylinder, the secondary sieve cylinder and the tertiary sieve cylinder respectively into the first lower hopper below, The second lower hopper and the third lower hopper are collected later, which is convenient for collecting the sieved strawberries separately and preventing the strawberries from being mixed together again.

In summary, the utility model has the following beneficial effects:

1. The scraper can scrape the strawberries blocked in the sieve holes back to the primary, secondary and tertiary sieve cylinders, which can effectively prevent the sieve holes from being blocked;

2. The primary screen cylinder and the secondary screen cylinder, and the secondary screen cylinder and the tertiary screen cylinder cooperate with each other through bumps and grooves, so that the grading and screening mechanism is easy to disassemble and easy to install;

3. The partition board divides the hopper into the first hopper, the second hopper and the third hopper, which facilitates the separate collection of sorted strawberries.

Description of drawings

Fig. 1 is the overall structure schematic diagram of spiral classifying and screening machine;

Fig. 2 is the structural representation of classification and screening mechanism;

Fig. 3 is an exploded view of the grading and screening mechanism;

Fig. 4 is a schematic structural diagram for highlighting the supporting transmission mechanism;

Figure 5 is an exploded view of the scraping mechanism;

Fig. 6 is an enlarged view of part A of Fig. 5;

Fig. 7 is the overall structural representation of strawberry grading and screening machine;

Fig. 8 is a structural schematic diagram for highlighting the feeding device.

Reference numerals: 1, unloading device; 11, legs; 12, unloading trough; 121, partition; 1211, first unloading hopper; 1212, second unloading hopper; 1213, third unloading hopper; 122, scraping material Mechanism; 1221, scraper plate; 1222, brush; 1223, fixed plate; 1224, fixed seat; 2, classification and screening device; 2311, bump; 232, secondary sieve cylinder; 2321, groove; 233, tertiary sieve cylinder; 234, sieve hole; 235, spiral leaf; 2351, through hole; 24, support transmission mechanism; 241 , the first bracket; 242, the driving motor; 243, the first roller group; 244, the outer convex ring; 245, the second bracket; 246, the second roller group; 3, the feeding device; 31, the hopper; 311 , rotating shaft; 32, cylinder; 33, support seat.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

A kind of spiral classification and screening machine, referring to Fig. 1, comprises unloading device 1 and the classification and screening device 2 that is arranged on the unloading device 1, one end of classification and screening device 2 is feed inlet 21, and the other end is discharge outlet 22, One end of the grading and screening device 2 near the feed port 21 is provided with a feeding device 3 .

Referring to FIG. 1 and FIG. 2 , the grading and screening device 2 includes a grading and screening mechanism 23 and supporting transmission mechanisms 24 located on both sides of the grading and screening mechanism 23 .

Referring to FIG. 3 , the grading and screening mechanism 23 includes a primary sieve cylinder 231 , a secondary sieve cylinder 232 and a tertiary sieve cylinder 233 which are sequentially inserted. The primary sieve cylinder 231 , the secondary sieve cylinder 232 and the tertiary sieve cylinder 233 are respectively provided with sieve holes 234 with successively increasing apertures. The inner walls of the primary sieve cylinder 231 , the secondary sieve cylinder 232 and the tertiary sieve cylinder 233 are fixed with helical blades 235 , and the helical blades 235 are provided with through holes 2351 having the same diameter as the corresponding sieve holes 234 . The end of the primary screen cylinder 231 away from the feed port 21 is fixed with a bump 2311, and the bumps 2311 are evenly arranged at the end of the primary screen drum 231, and the end of the secondary screen drum 232 close to the feed port 21 is provided with a bump The groove 2321 where the block 2311 is plugged. When connecting, insert the protrusion 2311 of the primary sieve cylinder 231 into the groove 2321 of the secondary sieve cylinder 232 to connect the primary sieve cylinder 231 and the secondary sieve cylinder 232 . The connection mode of the secondary screen cylinder 232 and the tertiary screen cylinder 233 is the same as that of the primary screen cylinder 231 and the secondary screen cylinder 232 .

Referring to Fig. 4, the supporting transmission mechanism 24 includes a first support 241 arranged on one side of the feed inlet 21, a drive motor 242 fixed on the first support 241, fixed on the first support 241 and driven by the drive motor 242 The moving first idler roller set 243 and the outer convex ring 244 fixed on the primary screen cylinder 231 and cooperating with the first idler roller set 243 (see FIG. 3 ). The supporting transmission mechanism 24 also includes a second bracket 245 disposed on one side of the discharge port 22 and a second idler roller set 246 fixed on the second bracket 245 for rotatably supporting the tertiary screen cylinder 233 . When in use, the driving motor 242 drives the first roller group 243 to move, and the first roller group 243 drives the outer convex ring 244 to rotate, thereby driving the classification and screening mechanism 23 to rotate.

The unloading device 1 includes four legs 11 arranged on the ground and a feed trough 12 fixed on the support legs 11, the feed chute 12 is evenly provided with partitions 121, and the partition 121 divides the feed chute 12 evenly into The first lower hopper 1211, the second lower hopper 1212 and the third lower hopper 1213, the first lower hopper 1211, the second lower hopper 1212 and the third lower hopper 1213 correspond to the first-level sieve cylinder 231, the second-level sieve cylinder 232 and the third hopper respectively. Stage sieve cylinder 233. During use, the primary sieve cylinder 231, the secondary sieve cylinder 232 and the tertiary sieve cylinder 233 respectively filter strawberries of different sizes, and the strawberries of different sizes pass through the first lower hopper 1211, the second lower hopper 1212 and the third lower hopper respectively. 1213 were collected.

Referring to FIG. 5 and FIG. 6 , a scraping mechanism 122 is provided at the edge of the top of the trough 12 . The scraping mechanism 122 includes a scraper 1221, a fixing plate 1223 fixed on both sides of the scraper 1221, and a fixing seat 1224 located on both sides of the scraper 1221 for fixing the fixing plate 1223 on the lower chute 12. The seat 1224 is fixed on the lower chute 12 by bolts, and the brush 1222 is fixed on the scraper plate 1221, and the brush 1222 abuts against the primary screen drum 231, the secondary screen drum 232 and the third screen drum 233. When working, the brush 1222 can scrape the strawberries stuck in the sieve holes 234 back into the primary sieve cylinder 231 , the secondary sieve cylinder 232 and the tertiary sieve cylinder 233 (see FIG. 7 ).

Referring to FIG. 8 , the feeding device 3 includes a support base 33 fixed on the first bracket 241 , a loading hopper 31 hinged on the support base 33 , and an air cylinder 32 arranged at the bottom of the loading hopper 31 . The bottom of the upper hopper 31 near the feed port 21 is fixedly connected with a rotating shaft 311, the rotating shaft 311 is rotatably connected to the support base 33, and the bottom of the cylinder 32 is rotatably connected to the end of the telescopic rod of the cylinder 32 on the first bracket 241. On the upper hopper 31.

Principle of use: Put the strawberries into the upper hopper 31, and the telescopic rod of the cylinder 32 is stretched to lift the upper hopper 31, so that the strawberries in the upper hopper 31 enter the primary sieve cylinder 231 from the feeding port 21, The drive motor 242 drives the primary screen drum 231 to rotate, and the primary screen drum 231 can drive the secondary screen drum 232 and the third-stage screen drum 233 to rotate. Move to the secondary sieve cylinder 232 and the tertiary sieve cylinder 233 for screening, the strawberries can be screened out from the sieve holes 234, and the brush 1222 on the scraper plate 1221 can scrape the strawberries stuck in the sieve holes 234 back to the first stage In the sieve cylinder 231, the secondary sieve cylinder 232 and the three-stage sieve cylinder 233, strawberries fall into the first lower hopper 1211, the second lower hopper 1212 and the third lower hopper 1213 from the sieve hole 234 and are collected. The larger strawberries that can be screened out from the sieve hole 234 come out from the discharge port 22 .

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (8)

1. A spiral classifying and screening machine, comprising a feeding device (1) and a classifying and screening device (2) arranged on the feeding device (1), one end of the classifying and screening device (2) is a feed inlet (21), The other end is a discharge port (22), and the classification and screening device (2) includes a classification and screening mechanism (23), and the classification and screening mechanism (23) includes three interconnected primary sieve cylinders (231), a secondary sieve cylinder (232) and the three-stage sieve cylinder (233), the first-stage sieve cylinder (231), the second-stage sieve cylinder (232) and the three-stage sieve cylinder (233) are provided with sieve holes (234) whose apertures increase sequentially , The unloading device (1) includes a support foot (11) on the ground and a feed trough (12) arranged on the support foot (11), characterized in that: the top edge of the feed chute (12) is provided with A scraper mechanism (122), the scraper mechanism (122) includes a scraper (1221) and a fixed plate (1223) fixedly connected to both sides of the scraper (1221), the fixed plate (1223) and the lower The trough (12) is detachably and fixedly connected, and the scraper (1221) abuts against the primary screen drum (231), the secondary screen drum (232) and the tertiary screen drum (233). 2. The spiral classifying and screening machine according to claim 1, characterized in that: a brush (1222) is fixed on the scraper (1221), and the brush (1222) is connected to the primary screen cylinder (231), secondary sieve cylinder (232) and tertiary sieve cylinder (233) abut. 3. The spiral classifying and screening machine according to claim 1, characterized in that: the upper side of the fixing plate (1223) is provided with a fixing seat (1224), and the fixing seat (1224) is attached to the fixing plate (1223) And the bolt is fixed on the feeding chute (12). 4. The spiral grading and screening machine according to claim 1, characterized in that: the primary screen drum (231) and the secondary screen drum (232) and the secondary screen drum (232) and the tertiary screen drum (233) ) between detachable fixed connections. 5. The spiral classifying and screening machine according to claim 4, characterized in that: the end of the primary screen cylinder (231) away from the feed inlet (21) is provided with a bump (2311), and the secondary screen cylinder (232) One end close to the feed port (21) is provided with a groove (2321) matched with the bump (2311), and the secondary screen drum (232) and the third screen drum (233) also pass through the bump (2311) cooperates with groove (2321) to connect. 6. The spiral grading and screening machine according to claim 1, characterized in that: spiral blades ( 235). 7. The spiral grading and screening machine according to claim 6, characterized in that: the spiral blade (235) is provided with a through hole (2351), and the through hole (2351) has an aperture diameter equal to that of the sieve hole (234). same. 8. The spiral classifying and screening machine according to claim 1, characterized in that: a partition (121) is arranged on the feeding trough (12), and the partition (121) evenly divides the feeding device (1) Divided into the first lower hopper (1211), the second lower hopper (1212) and the third lower hopper (1213), the first lower hopper (1211), the second lower hopper (1212) and the third lower hopper (1213) ) are respectively located directly below the primary screen drum (231), the secondary screen drum (232) and the tertiary screen drum (233).