Glutinous rice and Chinese yam vacuum packaging machine

Abstract

The invention relates to the technical field of packaging equipment, in particular to a glutinous rice and Chinese yam vacuum packaging machine. Glutinous rice and Chinese yam blocks can be tiled and limited in a packaging bag, quality inspection personnel or consumers can conveniently conduct visual inspection on all the Chinese yam blocks, vacuumizing dead angles among the glutinous rice and Chinese yam blocks in the packaging bag are reduced, energy consumption is reduced, and meanwhile the vacuumizing efficiency of the packaging bag is further improved. Comprising a rack and a vacuumizing packaging mechanism installed on the rack, the vacuumizing packaging mechanism comprises a first box shell fixedly installed on the rack, an arm frame installed at the bottom of the first box shell in a hinged mode, a second box shell fixedly installed on the arm frame, two air bags, a sealing assembly and a vacuumizing assembly, and a first telescopic cylinder is installed on the first box shell in a hinged mode; the sealing assembly comprises a first heat sealing plate fixedly installed on the top of the second box shell, a second heat sealing plate slidably installed on the top of the first box shell and a second telescopic cylinder providing power for sliding of the second heat sealing plate.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and particularly to a vacuum packaging machine for glutinous rice yam. Background Art

[0002] Glutinous rice yam: Its appearance is similar to that of ordinary yam, thick and slightly flat, and the whole is milky white or grayish white. There is a thin skin on the surface that is easy to peel off. After cutting, it can be seen that its interior is in the shape of glutinous rice, and mucus adheres to the cut surface. Due to the special shape of glutinous rice yam, it is mostly transported after peeling and cutting. Glutinous rice yam contains a lot of mannan, various amino acids, mucoprotein and water, and is easily invaded by molds and bacteria, resulting in a decline in quality. Therefore, vacuum packaging is often used for preservation.

[0003] For example, the invention patent application with the publication number CN119821764A discloses an automatic vacuum packaging device for fresh corn, including a machine body, a rotary bag feeding system and a rotary vacuum system arranged on the top of the machine body. The rotary vacuum system includes a number of vacuum chambers and vacuum covers hinged to the vacuum chambers. A clamping mechanism, a tightening mechanism, a synchronous driving mechanism and a heat sealing mechanism are arranged in the vacuum chambers. By using the stroke of the vacuum cover closing to cooperate with the active airbag, and then using the air pressure after the active airbag is extruded to cooperate with hydraulic oil, the effects of multi-point fixing of the packaging bag, automatic centering and deviation correction clamping of corn, and further fixing by front and rear clamping are realized in sequence, greatly improving the vacuum packaging quality of corn.

[0004] However, the above device still has the following defects: After bagging, the glutinous rice yam pieces gather at the bottom of the packaging bag under the action of gravity, while the upper part of the packaging bag is in an empty state. There are vacuum pumping dead corners between the glutinous rice yam pieces concentrated at the bottom of the packaging bag, and it is difficult for quality inspection personnel or consumers to detect whether the quality of the glutinous rice yam pieces hidden inside is qualified; Only after the entire vacuum chamber is evacuated can the inside of the packaging bag be evacuated. The vacuum pumping operation amount is large, the energy consumption is high, and the vacuum pumping efficiency of the packaging bag needs to be further improved. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a vacuum packaging machine for glutinous rice yam, which can realize the laying and limiting of glutinous rice yam pieces in the packaging bag, is beneficial for quality inspection personnel or consumers to visually inspect all the yam pieces, reduces the vacuum pumping dead corners between the glutinous rice yam pieces in the packaging bag, and further improves the vacuum pumping efficiency of the packaging bag while reducing energy consumption.

[0006] To achieve the above object, the present invention provides the following technical solution: A vacuum packaging machine for glutinous rice and Chinese yam, comprising a frame and a vacuum packaging mechanism mounted on the frame. The vacuum packaging mechanism includes a first box shell fixedly installed on the frame, an armrest hingedly installed at the bottom of the first box shell, a second box shell fixedly installed on the armrest, two air bags, a sealing component and a vacuum pumping component. A first telescopic cylinder is hingedly installed on the first box shell, and the output end of the first telescopic cylinder is hinged to the armrest. The two air bags are respectively fixedly installed in the first box shell and the second box shell. An opening allowing the bag mouth of the packaging bag to protrude is provided at the top of the first box shell. The sealing component includes a first heat sealing plate fixedly installed on the top of the second box shell, a second heat sealing plate slidably installed on the top of the first box shell, and a second telescopic cylinder providing power for the sliding of the second heat sealing plate; The vacuum pumping component includes a vacuum pump installed on the frame, an air extraction pipe, an air blowing pipe, an air extraction nozzle and a third telescopic cylinder fixedly installed on the upper part of the first box shell. The air extraction nozzle is fixedly installed at the output end of the third telescopic cylinder. The suction end of the vacuum pump is communicated with one end of the air extraction pipe, the other end of the air extraction pipe is communicated with the inside of the air extraction nozzle, the air outlet end of the vacuum pump is communicated with one end of the air blowing pipe, and two branch pipes are provided at the other end of the air blowing pipe, and the two branch pipes are respectively communicated with the inside of the two air bags. Further, when the first box shell and the second box shell are completely closed, a complete box body is formed. The first heat sealing plate and the second heat sealing plate are both made of electric heating plates, and the first heat sealing plate and the second heat sealing plate are powered by an external power supply; The lengths of the first heat sealing plate and the second heat sealing plate are both greater than the width of the bag mouth of the packaging bag; The two air bags are respectively installed in the lower parts of the first box shell and the second box shell. A flexible pipe part allowing the air extraction nozzle to move up and down is provided on the air extraction pipe, and a redundant amount allowing the air extraction nozzle to move is left in the flexible pipe part. The branch pipe connected to the air bag in the second box shell is also provided with a redundant flexible pipe part to avoid interference with the movement of the second box shell; The contact part of the air extraction nozzle with the first heat sealing plate and the second heat sealing plate is made of flexible rubber material, so that the air extraction nozzle tightly presses the bag mouth of the packaging bag at the first heat sealing plate and the second heat sealing plate, improving the sealing performance between the air extraction nozzle and the bag mouth of the packaging bag; The side of the first heat sealing plate and the second heat sealing plate close to the packaging bag is the heating area, and a heat insulation layer is provided at the top of the first heat sealing plate and the second heat sealing plate to avoid thermal damage to the bag mouth of the packaging bag during heat sealing.

[0007] Preferably, it further includes a bag clamping and feeding mechanism installed on the rack. The bag clamping and feeding mechanism includes a bottom plate, a carriage slidably installed on the bottom plate, two swing arms hingedly installed on the carriage, fixed clamping arms installed at the tops of the two swing arms, a cross arm fixedly connected to the two swing arms and arranged vertically, a driving seat slidably installed up and down on the carriage, an elastic reset member installed at the bottom of the carriage, and a fourth telescopic cylinder installed on the carriage. A fifth telescopic cylinder for providing power for the sliding of the carriage is installed on the bottom plate. The fourth telescopic cylinder provides power for the downward movement of the driving seat, and the elastic reset member provides a reset power for the upward movement of the driving seat. The elastic reset member includes a push rod slidably installed up and down on the carriage and a spring sleeved on the push rod. An opening chute is provided on the cross arm. A driving wheel is rotatably installed on the driving seat, and the driving wheel is rollingly installed in the opening chute. A fixed clamp and a movable clamp hinged to the fixed clamp are provided at the end of the fixed clamping arm. A sixth telescopic cylinder for providing power for the movement of the movable clamp is installed on the fixed clamping arm; further, one end of the fifth telescopic cylinder is hinged to the bottom of the bottom plate, and the other end of the fifth telescopic cylinder is hinged to the carriage; one end of the spring is connected to the top of the push rod, and the other end of the spring abuts against the carriage; one end of the sixth telescopic cylinder is hinged to the fixed clamping arm, and the other end of the sixth telescopic cylinder is hinged to the movable clamp; it should be noted that the packaging bags in this case need to use thick-walled packaging bags with a certain structural strength, that is, the wall thickness of the packaging bag should be at least greater than 0.04 mm.

[0008] Preferably, it further includes a tension spring and a limit screw. The two ends of the tension spring are respectively hinged to the bottoms of the two swing arms. The limit screw is screwed on the carriage, and the limit screw is located below the push rod.

[0009] Preferably, it further includes a bag opening device installed on the rack. The bag opening device includes a mounting plate, a bag opening mechanism and a bag supporting mechanism installed on the mounting plate. The bag opening mechanism includes a first lifting drive mechanism, two first rod frames slidably installed on the first lifting drive mechanism, a first suction cup installed on the two first rod frames, and a first driver for providing power for the movement of the two first rod frames. The bag supporting mechanism includes a second lifting drive mechanism, two second rod frames slidably installed on the second lifting drive mechanism, an inner support plate installed on the two second rod frames, and a second driver for providing power for the movement of the two second rod frames. The first driver and the second driver both include a mounting seat, a gear disk rotatably installed on the mounting seat, two racks slidably installed on the mounting seat, and a driving member for providing power for the reciprocating rotation of the gear disk; further, the first suction cup is communicated with an external negative pressure air source, and the external negative pressure air source provides suction power for the first suction cup. The first suction cups on the two first rod frames are arranged oppositely; preferably, the driving member is a telescopic cylinder and a driving handle. The telescopic cylinder is hingedly installed on the mounting plate, the driving handle is fixedly connected with the gear disk, and the output end of the telescopic cylinder is hinged with the driving handle; the driving member can also be other equivalent parts such as a reciprocating motor that can drive the gear disk to rotate repeatedly; the inner support plates on the two second rod frames are arranged oppositely; the two racks are symmetrically arranged on both sides of the gear disk and meshed with the gear disk; both the first lifting drive mechanism and the second lifting drive mechanism are preferably telescopic cylinders, and a driving mechanism with an equivalent lifting drive effect such as a mechanical slide table can also be used.

[0010] Preferably, it further includes a bag storing and sucking mechanism installed on the rack. The bag storing and sucking mechanism includes a bag storing component and a bag sucking component. The bag storing component includes a support frame, two seventh telescopic cylinders fixedly installed on the support frame, and a lifting frame installed at the output end of the seventh telescopic cylinder. Four groups of limiting angle braces are provided on the support frame. The bag sucking component includes a fixed frame installed on the rack, a rotating cylinder fixedly installed on the fixed frame, a telescopic rotating arm installed at the output end of the rotating cylinder, and a plurality of second suction cups installed on the telescopic rotating arm. Further, the stacked packaging bags are placed on the lifting frame, and the four corners of the packaging bags are limited by the limiting angle braces. The second suction cup is communicated with an external negative pressure air source, and the external negative pressure air source provides suction power for the second suction cup.

[0011] Preferably, it further includes an auxiliary feeding mechanism installed on the rack. The auxiliary feeding mechanism includes an eighth telescopic cylinder fixedly installed on the rack and a feeding bell mouth installed at the output end of the eighth telescopic cylinder. The feeding bell mouth is located above the middle of the two inner support plates and the two second suction cups; further, the first telescopic cylinder, the second telescopic cylinder... the eighth telescopic cylinder and other telescopic cylinders can all be hydraulic cylinders or pneumatic cylinders. An external hydraulic pump station or pneumatic system can provide telescopic kinetic energy for the telescopic movement of each telescopic cylinder, and each telescopic cylinder is independently controlled by an independent control system.

[0012] Preferably, a belt conveyor is installed on the frame, and the belt conveyor is located below the vacuum packaging mechanism.

[0013] Preferably, a pressure relief valve is installed on one of the sub-air pipes; further, the pressure relief valve is preferably an electromagnetic valve.

[0014] Compared with the prior art, the present invention provides a vacuum packaging machine for glutinous rice yam, having the following beneficial effects: for this vacuum packaging machine for glutinous rice yam, by placing a packaging bag containing glutinous rice yam pieces between the first housing and the second housing, after the first telescopic cylinder starts and extends, the first housing and the second housing close, the bag opening of the packaging bag extends out from the opening and is located between the first heat-sealing plate and the second heat-sealing plate. Subsequently, the second telescopic cylinder starts and drives the second heat-sealing plate to approach the first heat-sealing plate. A gap allowing the gas in the packaging bag to pass through is left between the first heat-sealing plate and the second heat-sealing plate. Subsequently, the third telescopic cylinder starts and drives the air extraction nozzle to move downward. The air extraction nozzle is inserted into the bag opening of the packaging bag and presses the bag opening of the packaging bag against the tops of the first heat-sealing plate and the second heat-sealing plate. The air extraction nozzle is hermetically connected to the inner wall of the packaging bag. The vacuum pump starts and extracts the air in the packaging bag. At the same time, the air extracted by the vacuum pump enters the two air bags through the air blowing pipe and the sub-air pipes. As the air in the packaging bag decreases, the two air bags gradually expand and squeeze the two sides of the packaging bag. Under the squeezing action, the outward discharge of the air in the packaging bag is accelerated. Since the outer walls of the glutinous rice yam pieces are adhered with mucus and the frictional resistance between the glutinous rice yam pieces is small, under the squeezing action of the air bags, the glutinous rice yam pieces are separated from each other and gradually change from an aggregated state to a dispersed and flat state in the packaging bag. The distance between adjacent glutinous rice yam pieces becomes larger, thereby reducing the air extraction dead corners between the glutinous rice yam pieces. The inner wall of the packaging bag is closely attached to the glutinous rice yam pieces, realizing the flat laying and limiting of the glutinous rice yam pieces in the packaging bag, which is beneficial for quality inspectors or consumers to visually inspect all the yam pieces and reduces the vacuum dead corners between the glutinous rice yam pieces in the packaging bag; only the inside of the packaging bag needs to be vacuum-treated. Under the action of the negative pressure extraction and the squeezing of the air bags, the gas in the packaging bag can be quickly extracted, reducing energy consumption and further improving the vacuum extraction efficiency of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the vacuum packaging mechanism of the present invention; Figure 3 is an external planar structural schematic diagram of the vacuum packaging mechanism of the present invention; Figure 4 is a three-dimensional structural schematic diagram of the bag clamping and feeding mechanism of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the bag opener of the present invention; Figure 6It is a three-dimensional structural schematic diagram of the bag storage and suction mechanism of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the auxiliary feeding mechanism of the present invention; Figure 8 It is of the present invention Figure 4 The partial enlarged structural schematic diagram at position A in Reference numerals in the drawings: 1, frame; 2, vacuum packaging mechanism; 3, first box shell; 4, boom; 5, second box shell; 6, airbag; 7, first telescopic cylinder; 8, opening; 9, first heat-sealing plate; 10, second heat-sealing plate; 11, second telescopic cylinder; 12, vacuum pump; 13, air extraction pipe; 14, air injection pipe; 15, air extraction nozzle; 16, third telescopic cylinder; 17, air distribution pipe; 18, bag clamping and feeding mechanism; 19, bottom plate; 20, sliding frame; 21, swing arm; 22, fixed clamping arm; 23, cross arm; 24, driving seat; 25, fourth telescopic cylinder; 26, fifth telescopic cylinder; 27, ejector rod; 28, spring; 29, opening chute; 30, driving wheel; 31, fixed clamp; 32, movable clamp; 33, sixth telescopic cylinder; 34, tension spring; 35, limit screw; 36, bag opener; 37, mounting plate; 38, first lifting drive mechanism; 39, first rod frame; 40, first suction cup; 41, second lifting drive mechanism; 42, second rod frame; 43, inner support plate; 44, mounting seat; 45, gear disk; 46, rack; 47, driving member; 48, bag storage and suction mechanism; 49, support frame; 50, seventh telescopic cylinder; 51, lifting frame; 52, limit angle brace; 53, fixed frame; 54, rotary cylinder; 55, telescopic rotary arm; 56, second suction cup; 57, auxiliary feeding mechanism; 58, eighth telescopic cylinder; 59, feeding bell mouth; 60, belt conveyor; 61, pressure relief valve. Detailed implementation manners

[0016] In order to enable those skilled in the art to better understand the invention solution, the technical solutions in the embodiments of the invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the invention.

[0017] As described in the background art, for a fresh corn automatic vacuum packaging device, after bagging, the glutinous yam pieces gather at the bottom of the packaging bag under the action of gravity, while the upper part of the packaging bag is in a void state. There are vacuum extraction dead angles between the glutinous yam pieces concentrated at the bottom of the packaging bag, and it is difficult for quality inspection personnel or consumers to detect whether the quality of the glutinous yam pieces hidden inside is qualified; only after the entire vacuum chamber is evacuated can the inside of the packaging bag be evacuated. The vacuum extraction workload is large, the energy consumption is high, and the vacuum extraction efficiency of the packaging bag needs to be further improved.

[0018] To solve this technical problem, the present invention provides a vacuum packaging machine for glutinous rice yam, which is applied to the vacuum packaging treatment of glutinous rice yam pieces.

[0019] It should be noted that, without conflict, the embodiments in the invention and the features and technical solutions in the embodiments can be combined with each other.

[0020] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0021] Example 1: Please refer to Figures 1-3, a vacuum packaging machine for glutinous rice yam, which comprises: a frame 1 and a vacuum packaging mechanism 2 installed on the frame 1. The vacuum packaging mechanism 2 includes a first box shell 3 fixedly installed on the frame 1, an armrest 4 hinged to the bottom of the first box shell 3, a second box shell 5 fixedly installed on the armrest 4, two air bags 6, a sealing component and a vacuum pumping component. A first telescopic cylinder 7 is hinged to the first box shell 3, and the output end of the first telescopic cylinder 7 is hinged to the armrest 4. The two air bags 6 are respectively fixedly installed in the first box shell 3 and the second box shell 5. An opening 8 allowing the bag mouth of the packaging bag to protrude is provided at the top of the first box shell 3. The sealing component includes a first heat-sealing plate 9 fixedly installed on the top of the second box shell 5, a second heat-sealing plate 10 slidably installed on the top of the first box shell 3, and a second telescopic cylinder 11 providing power for the sliding of the second heat-sealing plate 10; the vacuum pumping component includes a vacuum pump 12 installed on the frame 1, an air extraction pipe 13, an air injection pipe 14, an air extraction nozzle 15 and a third telescopic cylinder 16 fixedly installed on the upper part of the first box shell 3. The air extraction nozzle 15 is fixedly installed at the output end of the third telescopic cylinder 16. The suction end of the vacuum pump 12 is communicated with one end of the air extraction pipe 13, the other end of the air extraction pipe 13 is communicated with the inside of the air extraction nozzle 15, the air outlet end of the vacuum pump 12 is communicated with one end of the air injection pipe 14, and two branch air pipes 17 are provided at the other end of the air injection pipe 14. The two branch air pipes 17 are respectively communicated with the inside of the two air bags 6. Further, after the first box shell 3 and the second box shell 5 are completely closed, a complete box body is formed. Both the first heat-sealing plate 9 and the second heat-sealing plate 10 are made of electric heating plates, and the first heat-sealing plate 9 and the second heat-sealing plate 10 are powered by an external power supply; the lengths of both the first heat-sealing plate 9 and the second heat-sealing plate 10 are greater than the width of the bag mouth of the packaging bag; the two air bags 6 are respectively installed in the lower parts of the first box shell 3 and the second box shell 5. A flexible pipe part allowing the air extraction nozzle 15 to move up and down is provided on the air extraction pipe 13, and a redundant amount allowing the air extraction nozzle 15 to move is left in the flexible pipe part. The branch air pipe 17 connected to the air bag 6 in the second box shell 5 is also provided with a redundant flexible pipe part to avoid interference with the movement of the second box shell 5; the contact part of the air extraction nozzle 15 with the first heat-sealing plate 9 and the second heat-sealing plate 10 is made of flexible rubber material, so that the air extraction nozzle 15 tightly presses the bag mouth of the packaging bag against the first heat-sealing plate 9 and the second heat-sealing plate 10, improving the sealing performance between the air extraction nozzle 15 and the bag mouth of the packaging bag; the side of the first heat-sealing plate 9 and the second heat-sealing plate 10 close to the packaging bag is the heating area, and a heat insulation layer is provided at the top of the first heat-sealing plate 9 and the second heat-sealing plate 10 to avoid thermal damage to the bag mouth of the packaging bag during heat sealing.

[0022] Specifically, a belt conveyor 60 is installed on the frame 1, and the belt conveyor 60 is located below the vacuum packaging mechanism 2.

[0023] Specifically, a pressure relief valve 61 is installed on one of the branch air pipes 17; further, the pressure relief valve 61 is preferably an electromagnetic valve.

[0024] After the vacuum packaging of a bag is completed, the second telescopic cylinder 11 is started and drives the second heat sealing plate 10 to move toward the first heat sealing plate 9, and then the first heat sealing plate 9 and the second heat sealing plate 10 are started and heat and seal the bag opening; after the bag sealing is completed, the second heat sealing plate 10 is reset, and the third telescopic cylinder 16 drives the suction nozzle 15 to move upward and break away from the contact with the bag opening of the bag, the output end of the first telescopic cylinder 7 is shortened, and the second box shell 5 and the first box shell 3 are separated from each other until the non-hinged end of the second box shell 5 faces downward, and the sealed bag slides to the belt conveyor 60 under the action of gravity. The sealed bag can be unloaded by a robotic arm or manually through the belt conveyor 60, without the need to operate at the bottom of the frame 1, thereby improving the convenience of operation; after completing the vacuum packaging of a bag, the pressure relief valve 61 is started and opened to discharge the gas in the air bag 6, so as to avoid the air bag 6 being in an over-inflated state when the vacuum processing of the next bag is carried out.

[0025] Example 2: The glutinous rice and yam vacuum packaging machine provided in Example 1 is further optimized. For details, please refer to Figure 1 and Figure 4 The bag-clamping and loading mechanism 18 is also included on the frame 1, and the bag-clamping and loading mechanism 18 includes a bottom plate 19, a slide 20 slidably mounted on the bottom plate 19, two swing arms 21 hingedly mounted on the slide 20, a fixed clamping arm 22 mounted on the top of the two swing arms 21, a cross arm 23 fixedly connected to the two swing arms 21 and arranged vertically, a driving seat 24 slidably mounted on the slide 20 up and down, an elastic reset member mounted on the bottom of the slide 20 and a fourth telescopic cylinder 25 mounted on the slide 20, a fifth telescopic cylinder 26 providing power for the sliding of the slide 20 is installed on the bottom plate 19, the fourth telescopic cylinder 25 provides power for the downward movement of the driving seat 24, and the elastic reset member provides reset power for the upward movement of the driving seat 24, the elastic reset member includes a top rod 27 slidably mounted on the slide 20 up and down and a spring 28 sleeved on the top rod 27, an open slide groove 29 is provided on the cross arm 23, and the driving seat 24 is provided with a spring. A driving wheel 30 is rotatably installed, and the driving wheel 30 is rollingly installed in the open slide groove 29. The end of the fixed clamp arm 22 is provided with a fixed clamp 31 and a movable clamp 32 hinged to the fixed clamp arm 22. The fixed clamp arm 22 is provided with a sixth telescopic cylinder 33 that provides power for the movement of the movable clamp 32; further, one end of the fifth telescopic cylinder 26 is hinged to the bottom of the base plate 19, and the other end of the fifth telescopic cylinder 26 is hinged to the slide 20; one end of the spring 28 is connected to the top of the push rod 27, and the other end of the spring 28 abuts against the slide 20; one end of the sixth telescopic cylinder 33 is hinged to the fixed clamp arm 22, and the other end of the sixth telescopic cylinder 33 is hinged to the movable clamp 32; it should be noted that the packaging bag in this case needs to use a thick-walled plastic bag with a certain structural strength, that is, the wall thickness of the thick-walled plastic bag should be at least greater than 0.04mm; a slide rail is provided on the base plate 19, and the slide 20 is slidably installed on the slide rail.

[0026] Specifically, please refer to Figure 4 and Figure 8 , and also includes a tension spring 34 and a limit screw 35. The two ends of the tension spring 34 are respectively hinged to the bottoms of the two swing arms 21. The limit screw 35 is screwed on the carriage 20, and the limit screw 35 is located below the ejector rod 27.

[0027] Specifically, please refer to Figure 1 and Figure 5 , and also includes a bag opener 36 installed on the frame 1. The bag opener 36 includes a mounting plate 37, a bag opening mechanism and a bag supporting mechanism installed on the mounting plate 37. The bag opening mechanism includes a first lifting drive mechanism 38, two first rod frames 39 slidably installed on the first lifting drive mechanism 38, a first suction cup 40 installed on the two first rod frames 39, and a first driver for providing power for the movement of the two first rod frames 39. The bag supporting mechanism includes a second lifting drive mechanism 41, two second rod frames 42 slidably installed on the second lifting drive mechanism 41, an inner support plate 43 installed on the two second rod frames 42, and a second driver for providing power for the movement of the two second rod frames 42. The first driver and the second driver both include a mounting seat 44, a gear disk 45 rotatably installed on the mounting seat 44, two racks 46 slidably installed on the mounting seat 44, and a driving member 47 for providing power for the reciprocating rotation of the gear disk 45; further, the first suction cup 40 is communicated with an external negative pressure air source, and the external negative pressure air source provides suction power for the first suction cup 40. The first suction cups 40 on the two first rod frames 39 are arranged oppositely; the driving member 47 is preferably a telescopic cylinder and a driving handle. The telescopic cylinder is hingedly installed on the mounting plate 37, the driving handle is fixedly connected to the gear disk 45, and the output end of the telescopic cylinder is hinged to the driving handle; the driving member 47 can also adopt other equivalent parts such as a reciprocating motor that can drive the gear disk 45 to rotate repeatedly; the inner support plates 43 on the two second rod frames 42 are arranged oppositely; the two racks 46 are symmetrically arranged on both sides of the gear disk 45 and mesh with the gear disk 45; the first lifting drive mechanism 38 and the second lifting drive mechanism 41 are both preferably telescopic cylinders, and can also adopt a driving mechanism such as a mechanical slide table with an equivalent lifting drive effect; by driving the gear disk 45 to rotate through the driving member 47, the two racks 46 move synchronously and in opposite directions.

[0028] Specifically, please refer to Figure 1 and Figure 6, further comprising a bag storage and suction mechanism 48 installed on the rack 1. The bag storage and suction mechanism 48 includes a bag storage component and a bag suction component. The bag storage component includes a support frame 49, two seventh telescopic cylinders 50 fixedly installed on the support frame 49, and a lifting frame 51 installed at the output end of the seventh telescopic cylinder 50. Four groups of limit angle braces 52 are provided on the support frame 49. The bag suction component includes a fixed frame 53 installed on the rack 1, a rotary cylinder 54 fixedly installed on the fixed frame 53, a telescopic rotary arm 55 installed at the output end of the rotary cylinder 54, and a plurality of second suction cups 56 installed on the telescopic rotary arm 55. Further, the stacked packaging bags are placed on the lifting frame 51, and the four corners of the packaging bags are limited by the limit angle braces 52. The second suction cups 56 are communicated with an external negative pressure air source, and the external negative pressure air source provides suction power for the second suction cups 56; the telescopic rotary arm 55 is a telescopic cylinder.

[0029] Specifically, please refer to Figure 1 and Figure 7 , further comprising an auxiliary feeding mechanism 57 installed on the rack 1. The auxiliary feeding mechanism 57 includes an eighth telescopic cylinder 58 fixedly installed on the rack 1 and a feeding bell mouth 59 installed at the output end of the eighth telescopic cylinder 58. The feeding bell mouth 59 is located above the middle of the two inner support plates 43 and the two second suction cups 56; further, the first telescopic cylinder 7, the second telescopic cylinder 11... the eighth telescopic cylinder 58 and other telescopic cylinders can all be hydraulic cylinders or pneumatic cylinders. An external hydraulic pump station or pneumatic system can provide telescopic kinetic energy for the telescopic movement of each telescopic cylinder, and each telescopic cylinder is independently controlled by an independent control system.

[0030] Before evacuating and sealing the bag, the two swing arms 21 and the two fixed clamping arms 22 of the glutinous rice yam vacuum packaging machine provided in this embodiment are in a parallel state. Place the packaging bag containing glutinous rice yam pieces between the two fixed clamping arms 22. Both sides of the bag mouth of the packaging bag are located between the corresponding fixed clamping pliers 31 and the movable clamping pliers 32. The output end of the sixth telescopic cylinder 33 extends, and the bag mouth of the packaging bag is clamped between the fixed clamping pliers 31 and the movable clamping pliers 32. The output end of the fourth telescopic cylinder 25 extends. After the driving seat 24 moves downward, through the transmission of the driving wheel 30, the cross arm 23 and the swing arm 21, the two fixed arm frames 4 approach each other, and the bag mouth of the packaging bag is opened under the extrusion effect, so as to put the glutinous rice yam pieces into the packaging bag. After the packaging bag is filled with glutinous rice yam pieces, the fifth telescopic cylinder 26 is started. After the output end of the fifth telescopic cylinder 26 extends, the packaging bag is sent to the vacuum packaging mechanism 2. The first box shell 3 and the second box shell 5 are closed. Before performing the vacuum pumping operation on the packaging bag (at this time, the air extraction nozzle 15 is separated from the bag mouth of the packaging bag), first start the vacuum pump 12, and inflate the airbag 6 through the vacuum pump 12, so that the two airbags 6 are in a semi-inflated state and form an elastic extrusion effect on both sides of the packaging bag. The output end of the fourth telescopic cylinder 25 extends and retracts frequently. When the output end of the fourth telescopic cylinder 25 extends, the driving seat 24 moves downward. When the output end of the fourth telescopic cylinder 25 retracts, under the action of the elastic reset member, the driving seat 24 moves upward and resets itself. During the up and down displacement of the driving seat 24, the driving wheel 30 is driven to roll in the open chute 29. Through the transmission of the cross arm 23 and the swing arm 21, the two fixed clamping arms 22 frequently move away from or close to each other, and the bag mouth of the packaging bag is folded and then separated. The packaging bag containing glutinous rice yam pieces reciprocates up and down between the two semi-inflated airbags 6. During the movement, the elastic extrusion force of the airbag 6 acts on the glutinous rice yam pieces in the packaging bag, so that the aggregated glutinous rice yam pieces are dispersed to a single-layer state under the extrusion force, further improving the dispersion degree of the glutinous rice yam pieces in the packaging bag and providing guarantee for the subsequent vacuum exhaust of the packaging bag; under the action of the tension spring 34, the reset speed of the swing arm 21 can be further improved to improve the up and down displacement vibration effect of the packaging bag. The limit screw 35 can limit the downward displacement position of the driving seat 24 to prevent the driving seat 24 from moving downward excessively and prevent the driving wheel 30 from moving out of the open chute 29.

[0031] The bag opener 36 is used for opening the bags of packaging bags. After the bag clamping and feeding mechanism 18 clamps the packaging bag in a closed state, the first lifting drive mechanism 38 drives the first driver to move downward, so that the first suction cups 40 are respectively located on both sides of the packaging bag. After the first driver is started, the two first suction cups 40 move synchronously towards the packaging bag and adsorb the outer walls on both sides of the packaging bag. Then the first driver is started again, and the two first suction cups 40 move away from each other, and the bag mouth of the packaging bag is opened. It should be noted that at this time, the output end of the fourth telescopic cylinder 25 is in a shortened state, and the drive seat 24 can move up and down freely. The two fixed clamping arms 22 approach each other under the pulling force of the first suction cups 40, realizing the opening of the bag mouth of the packaging bag. Then the second lifting drive mechanism 41 drives the second driver to move downward, and the two inner support plates 43 are inserted into the bag mouth of the packaging bag in the open state 8. The second driver is started, and the two inner support plates 43 move away from each other, and the bag mouth of the packaging bag is fully opened, so that the operator can feed the glutinous rice yam pieces into the packaging bag.

[0032] Through the second suction cup 56, a packaging bag stacked on the lifting frame 51 can be adsorbed. Then the rotary cylinder 54 drives the telescopic rotary arm 55 to rotate 90 degrees, and then the telescopic rotary arm 55 extends, and the packaging bag is sent between the fixed clamp 31 and the movable clamp 32 at the two fixed clamping arms 22 of the bag clamping and feeding mechanism 18, realizing the automatic feeding of the packaging bag to the bag clamping and feeding mechanism 18, and improving the feeding convenience of the packaging bag; As the packaging bags are used, the height of the stacked packaging bags becomes smaller. At this time, by starting the seventh telescopic cylinder 50, the output end of the seventh telescopic cylinder 50 is shortened, and the lifting frame 51 moves upward, and the packaging bag moves upward between the respective limiting corner braces 52, so that the bag suction assembly can suck the packaging bag on the lifting frame 51.

[0033] When the bag mouth of the packaging bag is opened by the inner support plate 43, the output end of the eighth telescopic cylinder 58 extends, and the feeding flared opening 59 moves downward and extends into the packaging bag in the open state, and the glutinous rice yam pieces are fed into the packaging bag through the feeding flared opening 59, which can avoid the mucus on the glutinous rice yam pieces from adhering to the bag mouth of the packaging bag, avoid the residual mucus from affecting the sealing of the subsequent packaging bags, and at the same time avoid too much mucus from adhering to the upper part of the packaging bag to form stains, so as to ensure the sensory cleanliness of the upper part of the packaging bag.

[0034] The usage process of the glutinous rice yam vacuum packaging machine provided by the present invention is as follows: Feeding is carried out to the bag clamping and feeding mechanism 18 through the bag storage and suction mechanism 48. The two sides of the bag mouth of the packaging bag are clamped and fixed through the bag clamping and feeding mechanism 18. The bag mouth of the packaging bag is opened by the bag opener 36. The glutinous rice yam pieces are fed into the packaging bag through the auxiliary feeding mechanism 57. Subsequently, the output end of the fifth telescopic cylinder 26 extends and sends the packaging bag filled with glutinous rice yam pieces to the vacuum packaging mechanism 2. The packaging bag is transferred between the first box shell 3 and the second box shell 5. After the first telescopic cylinder 7 is started and extends, the first box shell 3 and the second box shell 5 are closed. The bag mouth of the packaging bag extends out from the opening 8 and is located between the first heat-sealing plate 9 and the second heat-sealing plate 10. Subsequently, the second telescopic cylinder 11 is started and drives the second heat-sealing plate 10 to approach the first heat-sealing plate 9. A gap allowing the gas in the packaging bag to pass through is left between the first heat-sealing plate 9 and the second heat-sealing plate 10. Subsequently, the third telescopic cylinder 16 is started and drives the air extraction nozzle 15 to move downward. The air extraction nozzle 15 is inserted into the bag mouth of the packaging bag and presses the bag mouth of the packaging bag against the tops of the first heat-sealing plate 9 and the second heat-sealing plate 10. The air extraction nozzle 15 is hermetically connected to the inner wall of the packaging bag. The vacuum pump 12 is started and the air in the packaging bag is pumped out. At the same time, the air pumped out by the vacuum pump 12 enters the two air bags 6 through the air duct 14 and the branch air duct 17. As the air in the packaging bag decreases, the two air bags 6 gradually expand and squeeze the two sides of the packaging bag. Under the squeezing action, the outward discharge of the air in the packaging bag is accelerated. Since the outer walls of the glutinous rice yam pieces are adhered with mucus and the frictional resistance between the glutinous rice yam pieces is small, the glutinous rice yam pieces are separated from each other under the squeezing action of the air bags 6 and gradually change from the aggregated state to the dispersed and flat state in the packaging bag. The distance between adjacent glutinous rice yam pieces becomes larger, thereby reducing the air extraction dead angle between the glutinous rice yam pieces. The inner wall of the packaging bag is closely attached to the glutinous rice yam pieces, realizing the flat laying and limiting of the glutinous rice yam pieces in the packaging bag and the vacuum treatment of the packaging bag.

[0035] In the invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the invention can be understood according to specific situations.

Claims

1. A vacuum packaging machine for glutinous rice yam, characterized in that, It includes a frame (1) and a vacuum packaging mechanism (2) installed on the frame (1). The vacuum packaging mechanism (2) includes a first box shell (3) fixedly installed on the frame (1), a boom (4) hinged to the bottom of the first box shell (3), a second box shell (5) fixedly installed on the boom (4), two air bags (6), a sealing component and a vacuum pumping component. A first telescopic cylinder (7) is hinged to the first box shell (3), and the output end of the first telescopic cylinder (7) is hinged to the boom (4). The two air bags (6) are respectively fixedly installed in the first box shell (3) and the second box shell (5). An opening (8) allowing the bag mouth of the packaging bag to protrude is provided at the top of the first box shell (3). The sealing component includes a first heat sealing plate (9) fixedly installed on the top of the second box shell (5), a second heat sealing plate (10) slidably installed on the top of the first box shell (3), and a second telescopic cylinder (11) providing power for the sliding of the second heat sealing plate (10). The vacuum pumping component includes a vacuum pump (12) installed on the frame (1), a suction pipe (13), a blowing pipe (14), a suction nozzle (15), and a third telescopic cylinder (16) fixedly installed on the upper part of the first box shell (3). The suction nozzle (15) is fixedly installed at the output end of the third telescopic cylinder (16). The suction end of the vacuum pump (12) is communicated with one end of the suction pipe (13), the other end of the suction pipe (13) is internally communicated with the suction nozzle (15), the air outlet end of the vacuum pump (12) is communicated with one end of the blowing pipe (14), and two sub-pipes (17) are provided at the other end of the blowing pipe (14). The two sub-pipes (17) are respectively internally communicated with the two air bags (6).

2. The glutinous rice yam vacuum packaging machine according to claim 1, wherein It further includes a bag clamping and loading mechanism (18) installed on the rack (1). The bag clamping and loading mechanism (18) includes a bottom plate (19), a carriage (20) slidably installed on the bottom plate (19), two swing arms (21) hinged to the carriage (20), fixed clamping arms (22) installed at the tops of the two swing arms (21), a cross arm (23) fixedly connected to the two swing arms (21) and arranged vertically, a driving seat (24) slidably installed up and down on the carriage (20), an elastic reset member installed at the bottom of the carriage (20), and a fourth telescopic cylinder (25) installed on the carriage (20). A fifth telescopic cylinder (26) for providing power for the sliding of the carriage (20) is installed on the bottom plate (19). The fourth telescopic cylinder (25) provides power for the downward movement of the driving seat (24), and the elastic reset member provides a reset power for the upward movement of the driving seat (24). The elastic reset member includes a push rod (27) slidably installed up and down on the carriage (20) and a spring (28) sleeved on the push rod (27). An open chute (29) is provided on the cross arm (23). A driving wheel (30) is rotatably installed on the driving seat (24), and the driving wheel (30) is rollingly installed in the open chute (29). Fixed clamping pliers (31) and a movable clamping plier (32) hinged to the fixed clamping arm (22) are provided at the end of the fixed clamping arm (22). A sixth telescopic cylinder (33) for providing power for the movement of the movable clamping plier (32) is installed on the fixed clamping arm (22).

3. The glutinous rice yam vacuum packaging machine according to claim 2, wherein It further includes a tension spring (34) and a limit screw rod (35). The two ends of the tension spring (34) are respectively hinged to the bottoms of the two swing arms (21). The limit screw rod (35) is screwed on the carriage (20), and the limit screw rod (35) is located below the push rod (27).

4. The glutinous rice yam vacuum packaging machine according to claim 2, wherein It further includes a bag opener (36) installed on the rack (1). The bag opener (36) includes a mounting plate (37), a bag opening mechanism and a bag supporting mechanism installed on the mounting plate (37). The bag opening mechanism includes a first lifting drive mechanism (38), two first rod frames (39) slidably installed on the first lifting drive mechanism (38), first suction cups (40) installed on the two first rod frames (39), and a first driver for providing power for the movement of the two first rod frames (39). The bag supporting mechanism includes a second lifting drive mechanism (41), two second rod frames (42) slidably installed on the second lifting drive mechanism (41), inner support plates (43) installed on the two second rod frames (42), and a second driver for providing power for the movement of the two second rod frames (42). The first driver and the second driver both include a mounting seat (44), a toothed disc (45) rotatably installed on the mounting seat (44), two racks (46) slidably installed on the mounting seat (44), and a driving member (47) for providing power for the reciprocating rotation of the toothed disc (45).

5. The glutinous rice yam vacuum packaging machine according to claim 4, characterized in that, It further includes a bag storage and suction mechanism (48) installed on the rack (1). The bag storage and suction mechanism (48) includes a bag storage component and a bag suction component. The bag storage component includes a support frame (49), two seventh telescopic cylinders (50) fixedly installed on the support frame (49), and a lifting frame (51) installed at the output end of the seventh telescopic cylinder (50). Four groups of limit angle braces (52) are provided on the support frame (49). The bag suction component includes a fixed frame (53) installed on the rack (1), a rotary cylinder (54) fixedly installed on the fixed frame (53), a telescopic rotary arm (55) installed at the output end of the rotary cylinder (54), and a plurality of second suction cups (56) installed on the telescopic rotary arm (55).

6. The glutinous rice yam vacuum packaging machine according to claim 5, characterized in that, It further includes an auxiliary feeding mechanism (57) installed on the rack (1). The auxiliary feeding mechanism (57) includes an eighth telescopic cylinder (58) fixedly installed on the rack (1) and a feeding bell mouth (59) installed at the output end of the eighth telescopic cylinder (58). The feeding bell mouth (59) is located above the middle of the two inner support plates (43) and the two second suction cups (56).

7. The glutinous rice yam vacuum packaging machine according to claim 1, wherein, A belt conveyor (60) is installed on the rack (1), and the belt conveyor (60) is located below the vacuum packaging mechanism (2).

8. The glutinous rice yam vacuum packaging machine according to claim 1, characterized in that, A pressure relief valve (61) is installed on one of the sub-air pipes (17).

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