CN108903025B

CN108903025B - Automatic bag and handle removing operation conveying device for lemons

Info

Publication number: CN108903025B
Application number: CN201810588447.3A
Authority: CN
Inventors: 王树才; 李强; 吴刚; 林卫国; 胡孝刚; 王姣; 李井露
Original assignee: Huazhong Agricultural University
Current assignee: Huazhong Agricultural University
Priority date: 2018-06-08
Filing date: 2018-06-08
Publication date: 2021-04-06
Anticipated expiration: 2038-06-08
Also published as: CN108903025A

Abstract

The invention discloses a conveying device for automatic bag and handle removing operation of lemons, which comprises: the device comprises a lemon conveying device, a lateral supporting device, a pneumatic device, a bag removing device and a handle removing device; the lemon conveying device is located in the center of the whole conveying device, the lateral supporting devices are located on two sides of the lemon conveying device, the two pneumatic devices are obliquely and symmetrically distributed on two sides of the lateral supporting devices, the bag removing device is located on the right side of the lateral supporting devices, and the handle removing device is located on the left side of the lateral supporting devices. The device can ensure that the lemons with different sizes safely and stably pass through the bag removing device and the handle removing device, remove the protection bag and cut off the fruit handle, can improve the operating efficiency of removing the bag and the handle of the lemons, reduces the labor intensity of workers, reduces the processing cost, reduces the damage of the manual operation to the oil layer on the surface of the lemons, and has wide application prospect.

Description

Automatic bag and handle removing operation conveying device for lemons

Technical Field

The invention belongs to the technical field of mechanical automatic processing of agricultural products, and particularly relates to a conveying device for carrying out automatic bag and handle removing operation on lemons.

Background

The lemon contains various nutrient components of saccharide, calcium, phosphorus, iron, vitamin B1, B2, C and the like, and also contains rich citric acid, flavonoid, volatile oil, hesperidin and the like, and has the functions of reducing phlegm and stopping cough, promoting the production of body fluid and invigorating stomach, cleaning and whitening skin, beautifying and losing weight, and has very high nutritional and medicinal values, so that the lemon has a very large consumer group. In order to prevent diseases and insect pests, shield light and protect color during the growth of the lemons, the lemons need to be bagged, the fruit bags are made of wood pulp paper, and the fruit bags are sealed by a fixing binding tape. When the lemon is roughly processed, the protective bag sleeved outside is removed, the fruit handle of the lemon is cut off, the base of the fruit handle cannot be damaged when the handle is cut, otherwise, the deterioration of the lemon is accelerated. At present, the process is generally finished by manual operation, and the specific operation steps are as follows: the person holds the lemon with one hand, tears the protection bag with the other hand, removes the lemon completely, and then cuts off the handles of the lemon one by one with scissors. The method has the disadvantages of low operation efficiency, high labor cost and large damage degree to the surface oil layer of the lemon. In order to rapidly and effectively carry out the bag and handle removing operation of the lemons, a conveying line for the automatic bag and handle removing operation of the lemons needs to be developed so as to reduce the labor intensity of workers and improve the bag and handle removing operation efficiency of the lemons.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a conveying device for carrying out automatic bag and handle removing operation on lemons, which can ensure that the lemons with different sizes safely and stably pass through a bag removing device and a handle removing device, so that a protection bag is removed and fruit handles are cut off, the operating efficiency of bag and handle removing of the lemons is greatly improved, the manual labor intensity is reduced, the processing cost is reduced, and meanwhile, the damage of manual operation on an oil layer on the surface of the lemons is reduced.

In order to achieve the purpose, the invention adopts the technical scheme that:

a lemon automatic bag-removing and handle-removing operation conveying device comprises: the lemon conveying device is positioned in the center of the whole conveying device, the lateral supporting devices are positioned on two sides of the lemon conveying device, the two pneumatic devices are obliquely and symmetrically distributed on two sides of the lateral supporting devices, the bag removing device is positioned on the right side of the lateral supporting devices, and the handle removing device is positioned on the left side of the lateral supporting devices;

the lemon conveying device comprises a conveying chain 4 and a lemon tray 5 arranged on the inner side of the conveying chain 4; the lateral supporting device comprises a brake cable 7 and a supporting frame 8; the pneumatic device comprises an air knife 6 and a fan 9; the bag removing device comprises an upper scraper 12, a bag removing roller 13, a cylindrical spur gear 14 and a lower scraper 15; the stem removing device comprises a sliding bearing 16, a compression nut 17, a disc cutter 18, a cylindrical gear 19 and a cutter spindle 20.

Further, the lemon conveying device comprises a motor 1, a speed reducer 2, a V-shaped belt 3, a conveying chain 4, a lemon tray 5, a chain wheel 10, a belt wheel 11, an outer chain plate 21, a pin shaft 22, a tray mounting bracket 23 and a mounting sleeve 25; the number of the chain wheels 10 is 4, the number of the conveying chains 4 is two, every two chain wheels 10 are matched with one conveying chain 4 to tension the chain wheels, and the two conveying chains 4 are arranged in parallel; the conveying chain 4 is a conveying chain, and a pin shaft 22 of the conveying chain extends out of the outer chain plate 21; the lemon tray 5 is in threaded connection with the tray mounting bracket 23, and the tray mounting bracket supports the lemon tray; mounting sleeves 25 are welded at two ends of the tray mounting bracket 23; the pin shaft 22 is arranged in the sleeve 25; the belt wheels 11 are arranged on the motor 1 and the speed reducer 2, and the two V-shaped belts 3 are arranged on the belt wheels 11.

Furthermore, 2 support frames 8 in the lateral support device are distributed on two sides of the lemon tray 5 in parallel; the brake cables 7 are fastened on the support frames 8, and the number of the brake cables 7 on each support frame 8 is 6.

Furthermore, two air knives 6 in the pneumatic device are respectively connected with two fans 9, the fans are used for generating high-speed airflow, and the air knives can spread the airflow.

Further, two spur gears 14 are provided and are meshed with each other to realize reverse rotation; the two bag removing rollers 13 are respectively and coaxially arranged with the two cylindrical straight gears 14, the bag removing rollers 13 are tightly attached to the brake cable 7, and a shaft of the bag removing roller 13 and the brake cable 7 form a certain included angle which is +/-5 degrees; the upper scraper 12 is installed above the bag removing roller 13, and the lower scraper 15 is installed below the bag removing roller 13.

Furthermore, four cutter spindles 20 are arranged on 8 sliding bearings 16 side by side; four cylindrical gears 19 are arranged on the four cutter main shafts 20 respectively and are meshed with each other; the number of the disc cutters 18 is four, the disc cutters are respectively arranged at the tail ends of the four cutter main shafts 20, and the side surfaces of the disc cutters are tightly attached to the brake cable 7; the number of the compression nuts 17 is four, and the four disk cutters 18 are fixed.

Compared with the prior art, the invention has the following advantages and effects:

(1) when the automatic bag and handle removing operation is performed on the lemons, the device disclosed by the invention is adopted, only the lemons need to be manually placed on the lemon conveying tray, the left fan directly blows the lemons to the right side to realize bag removing, and then the right fan blows the lemons to the left side to realize handle removing, so that the automatic assembly line production of the bag and handle removing of the lemons is realized, the bag and handle removing operation efficiency of the lemons is greatly improved, the production efficiency is improved, the manual labor intensity is reduced, and the damage rate of an oil layer on the surface of the lemons is reduced. The existing links of weight sorting, color sorting and packaging are added behind the conveying line, and all the operation contents of lemon rough machining realize automatic flow line production;

(2) the device has simple structure, and can remove the packaging bags of the lemons with different sizes and cut the fruit stalks.

Drawings

Figure 1 is a three-dimensional view of the invention comprising a lemon delivery device, lateral support means and pneumatic means;

FIG. 2 is a three-dimensional view of the bag removal device of the present invention;

FIG. 3 is a three-dimensional view of the despiking apparatus of the present invention;

FIG. 4 is an overall three-dimensional view of the apparatus of the present invention;

FIG. 5 is a three-dimensional view of the bottom structure of a lemon tray of the present invention;

fig. 6 is a schematic view of the installation relationship between the lemon tray and the conveying chain.

Wherein, in the figure: the device comprises a motor, a speed reducer, a 3-V belt, a 4-conveying chain, a 5-lemon tray, a 6-air knife, a 7-brake cable, a 8-support frame, a 9-fan, a 10-chain wheel, a 11-belt wheel, a 12-upper scraping plate, a 13-bag removing roller, a 14-cylindrical straight gear, a 15-lower scraping plate, a 16-sliding bearing, a 17-gland nut, a 18-disc cutter, a 19-cylindrical gear, a 20-cutter main shaft, a 21-outer chain plate, a 22-pin shaft, a 23-tray mounting support and a 25-mounting sleeve.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to specific examples. It will be understood that the examples are for the purpose of further illustrating the subject invention and should not be construed in any way as limiting the scope of the invention.

Example 1:

as shown in the attached drawings 1-6, the invention relates to an automatic bag-removing and handle-removing conveying line for lemons, which comprises: the device comprises a lemon conveying device, a lateral supporting device, a pneumatic device, a bag removing device and a handle removing device; as can be seen from fig. 1 and 4, the lemon conveying device is located at the center of the whole conveying device, the lateral supporting devices are located at two sides of the lemon conveying device, the two pneumatic devices are obliquely and symmetrically distributed at two sides of the lateral supporting devices, the bag removing device is located at the right side of the lateral supporting devices, and the handle removing device is located at the left side of the lateral supporting devices.

Referring to fig. 1 and 4-6, in the embodiment of the present invention, the lemon conveying device includes a motor 1, a speed reducer 2, a V-belt 3, a conveying chain 4, a lemon tray 5, a sprocket 10, a pulley 11, an outer chain plate 21, a pin 22, a tray mounting bracket 23, and a mounting sleeve 25; sprocket 10 has 4, constitutes transport mechanism with two 4 cooperations of conveying chain respectively, and conveying chain 4 is periodic operation under sprocket 10's rotation, lemon tray 5 is installed in the inboard of two parallel conveying chain 4, send chain 4 to rotate together along with the transmission, and side by side lemon tray 5 forms U type groove, can block the lemon between U type groove, and the lemon is along with lemon tray 5 forward motion. The conveying chain 4 is a conveying chain, and a pin shaft 22 of the conveying chain extends out of the outer chain plate 21; the lemon tray 5 is in threaded connection with the tray mounting bracket 23, and the tray mounting bracket supports the lemon tray; mounting sleeves 25 are welded at two ends of the tray mounting bracket 23; the pin shaft 22 is arranged in the sleeve 25; the belt wheels 11 are arranged on the motor 1 and the speed reducer 2, and the two V-shaped belts 3 are arranged on the belt wheels 11.

Referring to fig. 1 and 4, two air knives 6 in the pneumatic device are respectively connected with two fans 9; two spur gears 14 are provided and are meshed with each other to realize reverse rotation; the two bag removing rollers 13 are respectively and coaxially arranged with the two cylindrical straight gears 14, the bag removing rollers 13 are tightly attached to the brake cable 7, and a shaft of the bag removing roller 13 and the brake cable 7 form a certain included angle which is +/-5 degrees; the upper scraper 12 is installed above the bag removing roller 13, and the lower scraper 15 is installed below the bag removing roller 13. The number of the cutter main shafts 20 is four, and the four cutter main shafts are arranged on 8 sliding bearings 16 side by side; four cylindrical gears 19 are arranged on the four cutter main shafts 20 respectively and are meshed with each other; the number of the disc cutters 18 is four, the disc cutters are respectively arranged at the tail ends of the four cutter main shafts 20, and the side surfaces of the disc cutters are tightly attached to the brake cable 7; the number of the compression nuts 17 is four, and the four disk cutters 18 are fixed.

The fan 9 generates high-speed airflow, and the narrow air outlet of the air knife 6 increases the airflow pressure to blow the lemons to the other side of the lemon tray 5; the brake cables 7 in the lateral supporting device are fixedly arranged on the supporting frame 8 through screws, the brake cables 7 in multiple rows are arranged in parallel, the lemon can be prevented from sliding out laterally, and the lemon packaging bag and the fruit handle can extend out of a gap of the brake cables 7, so that conditions are created for bag removal and handle removal; the manual work is put on the production line with the lemon that will be packed, the carpopodium is left, the angle of wrapping bag is right, the lemon falls to different heights because the volume variation in size, bulky receiving lemon tray 5's supporting role is in higher position, small being in lower position, both ends all contact with brake cable 7 about the lemon, fan 9 in entrance is on the left side, blow the right side of U type groove with the lemon, the wrapping bag of lemon stretches out from the gap of brake cable 7, take off the bagging apparatus by the right side and take off, then the lemon continues forward motion along with lemon tray 5, right side fan 9 blows the lemon to the left side, the carpopodium stretches out from the gap of left side brake cable 7, it cuts off the device to be got rid of by the left side handle, thereby realize taking off the bag and removing the handle.

Referring to fig. 1, 2 and 4, the bag removing device is mounted close to the brake line 7, two bag removing rollers 13 are provided and are in an external engagement state, and are driven by a power system to rotate at a high speed, so that the lemon packaging bags extending into the engagement line are pulled out by using friction force; it is stated that the wood pulp paper used for packaging lemons is not very stiff and easily creased, is flexible and generally does not break by pulling. In addition, when the worker wraps the lemon bags, the fixing type binding belts are only bent or simply rotated for several circles for fixing, and when the lemon packaging bags slide relative to the fixing type binding belts, the binding belts are easy to open or fall off; the shaft of the bag removing roller 13 and the brake cable 7 are arranged at a certain included angle, relative to the brake cable 7, one end of the bag removing roller 13 at the lemon inlet is higher, the other end of the bag removing roller is lower, the lemon packaging bag with larger volume extends out of a higher crack of the brake cable 7 and just can extend into the meshing part of the two bag removing rollers 13, the bag removing roller 13 just can clamp the packaging bag extending out of the crack of the brake cable 7, and the packaging bag is pulled out outwards under the action of friction force, so that the purpose of bag removing is achieved; the lemon packaging bags with small volume extend out of the lower crack of the brake cable 7, at the moment, the lemon packaging bags are lower than the engaging parts of the two bag removing rollers 13, when the lemon is pushed by the lemon pushing tray 5 to move forwards, and when the heights of the lemon packaging bags are the same as the heights of the engaging parts of the bag removing rollers 13, the engaging parts can just clamp the packaging bags extending out of the crack of the brake cable 7, the packaging bags are pulled outwards under the action of friction force, and the purpose of bag removing is also achieved.

Referring to fig. 1, 3 and 4, the stem removing device is mounted in close proximity to the brake cable 7; the cutter spindle 20 can rotate at a high speed under the drive of a power system; the disc cutters 18 are four in number, the tooth sheets are thin, the tooth tops of the disc cutters are sharp, the inner side faces of the disc cutters are close to the brake cable 7 and rotate at a high speed along with the cutter main shaft 20, when the lemons are blown by high-speed airflow at the other side, the fruit handles of the lemons all extend out of the brake cable 7, and when the lemons are pushed by the lemon tray 5 to move forwards, the fruit handles are all cut off by the disc cutters 18 when contacting with the disc cutters 18, and therefore the purpose of removing the handles is achieved.

Example 2

The working process of the conveying line for the automatic bag and handle removing operation of the lemons is as follows:

the packed lemons are manually placed on the production line, the handles are leftwards, the corners of the packing bags are rightwards, the lemons fall to different heights due to different sizes, the lemon packing bags with large sizes are supported by the lemon tray 5 to be in a higher position, the lemon packing bags with small sizes are in a lower position, corners of the lemon packing bags can extend out of the cracks of the right brake cable 7 under the action of high-speed airflow of the starting device, and the handles of the lemons can extend out of the cracks of the left brake cable 7. The conveying chain 4 rotates periodically under the rotation of the chain wheel 10, the lemon trays 5 also rotate along with the conveying chain 4, and the lemons move forwards along with the lemon trays 5. When the lemon packaging bags contact the bag removing device, the bag removing process is started, the packaging bags of the large lemon extend out of a higher seam of the brake cable 7 and just can extend into the meshing parts of the two bag removing rollers 13, the upper bag removing roller 13 rotates clockwise, the lower bag removing roller 13 rotates anticlockwise, the meshing parts just can clamp the packaging bags extending out of the seam of the brake cable 7, and the packaging bags are pulled out outwards under the action of friction force, so that the purpose of bag removing is achieved; the lemon packaging bag with small volume extends out of the lower crack of the brake cable 7, the lemon packaging bag is lower than the meshing part of the two bag removing rollers 13 at the moment, when the lemon is pushed by the lemon tray 5 to move forwards, and when the height of the lemon packaging bag is the same as that of the meshing part of the two bag removing rollers 13, the meshing part can just clamp the packaging bag extending out of the crack of the brake cable 7, the packaging bag is pulled out outwards under the action of rotation, and the purpose of bag removing is achieved. After the lemon packaging bag is removed, the lemon continues to move forwards along with the lemon tray 5, and when the lemon fruit handle contacts the disc cutter 18 of the handle removing device, the lemon fruit handle is completely cut off, so that the purpose of removing the handle is achieved. After these two processes are completed, the lemon tray 5 continues to move forward for subsequent processing.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, but the present invention is intended to cover any modification, equivalent replacement or improvement made within the spirit and principle of the present invention and the scope of the appended claims.

In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper", "lower", "center", "forward", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "engaged," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, releasably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The technical scheme is not described in detail and is a known technology.

It should be noted that the above-described embodiments may enable those skilled in the art to more fully understand the present invention, but do not limit the present invention in any way. Thus, it will be appreciated by those skilled in the art that the invention may be modified and equivalents may be substituted; all technical solutions and modifications thereof which do not depart from the spirit and technical essence of the present invention should be covered by the scope of the present patent.

Claims

1. A lemon automatic bag-removing and handle-removing operation conveying device comprises: the lemon conveying device is positioned in the center of the whole conveying device, the lateral supporting devices are positioned on two sides of the lemon conveying device, the two pneumatic devices are obliquely and symmetrically distributed on two sides of the lateral supporting devices, the bag removing device is positioned on the right side of the lateral supporting devices, and the handle removing device is positioned on the left side of the lateral supporting devices;

the lemon conveying device comprises a conveying chain (4) and a lemon tray (5) arranged on the inner side of the conveying chain (4); the lateral supporting device comprises a brake cable (7) and a supporting frame (8); the pneumatic device comprises an air knife (6) and a fan (9); the bag removing device comprises an upper scraper (12), a bag removing roller (13), a cylindrical spur gear (14) and a lower scraper (15); the handle removing device comprises a sliding bearing (16), a compression nut (17), a disc cutter (18), a cylindrical gear (19) and a cutter main shaft (20);

two spur gears (14) are arranged and are meshed with each other to realize reverse rotation; the two bag removing rollers (13) are respectively and coaxially arranged with the two straight cylindrical gears (14), the bag removing rollers (13) are installed in a manner of being tightly attached to the brake cable (7), and a shaft of the bag removing rollers (13) and the brake cable (7) form a certain included angle which is +/-5 degrees; the upper scraper (12) is arranged above the bag removing roller (13), and the lower scraper (15) is arranged below the bag removing roller (13).

2. The automatic bag and handle removing operation conveying device for lemons according to claim 1, wherein the conveying device for the lemons comprises a motor (1), a speed reducer (2), a V-belt (3), a conveying chain (4), a lemon tray (5), a chain wheel (10), a belt wheel (11), a tray mounting bracket (23) and a mounting sleeve (25); the number of the chain wheels (10) is 4, two conveying chains (4) are provided, every two chain wheels (10) are matched with one conveying chain (4) to tension the chain wheels, and the two conveying chains (4) are arranged in parallel; the conveying chain (4) is a conveying chain; the lemon tray (5) is in threaded connection with the tray mounting bracket (23), and the tray mounting bracket supports the lemon tray; mounting sleeves (25) are welded at two ends of the tray mounting bracket (23); the belt wheels (11) are arranged on the motor (1) and the speed reducer (2), and two V-shaped belts (3) are arranged on the belt wheels (11).

3. The automatic bag and handle removing operation conveying device for lemons according to claim 2, wherein 2 support frames (8) in the lateral support device are distributed on two sides of the lemon tray (5) in parallel; the brake cables (7) are fastened on the support frames (8), and the number of the brake cables (7) on each support frame (8) is 6.

4. The conveying device for the automatic bag and handle removing operation of the lemons according to any one of claims 1 to 3, wherein two air knives (6) in the pneumatic device are respectively connected with two fans (9) which are used for generating high-speed air flow, and the air knives can spread the air flow.

5. The conveying device for the automatic bag and handle removing operation of the lemons according to claim 4, wherein the number of the cutter spindles (20) is four, and the four cutter spindles are arranged on 8 sliding bearings (16) side by side; four cylindrical gears (19) are arranged on the four cutter main shafts (20) respectively and are meshed with each other; the four disc cutters (18) are respectively arranged at the tail ends of the four cutter main shafts (20), and the side surfaces of the four disc cutters are tightly attached to the brake cable (7); the number of the compression nuts (17) is four, and the compression nuts are used for fixing four disc cutters (18).