A material discharging structure for food vacuum packaging

Abstract

The present invention relates to the technical field of conveying structures, and in particular to a material discharging structure for vacuum packaging of food, comprising a narrow conveyor belt for conveying food one by one, a plurality of groups of reversing units arranged side by side, and a clamping unit arranged on each group of reversing units, wherein the arrangement direction of the plurality of groups of reversing units is colinear with the conveying direction of the narrow conveyor belt, the reversing unit is used to reversibly convey the food into the clamping unit, the clamping unit is located at the side of the reversing unit and is used to convey the food downward; by adopting an automated material discharging method, the downtime caused by manual operation can be significantly reduced, so that the entire packaging process is more continuous, and the production efficiency is improved; and by discharging materials into a plurality of trays at the same time, the inefficiency of discharging materials one by one in the traditional method can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of conveying structures, in particular to a material discharging structure for food vacuum packaging. Background Art

[0002] With the continuous improvement of people's requirements for food safety and quality, and the growing demand for convenient food in a fast-paced life, food processing and packaging technology is facing new challenges. At present, the packaging of meat foods such as steaks on the market mainly adopts vacuum packaging technology. Vacuum packaging can effectively remove the air in the packaging bag, inhibit the growth of microorganisms, and thus extend the shelf life of the food. In the vacuum packaging process of steak food, the conveyor belt transports multiple trays side by side to the discharge position at the same time. The conveyor belt stops running, and the workers put the steaks on the trays one by one. After that, the conveyor belt continues to convey and moves the next group of empty trays to the discharge position. The workers put the steaks into the trays one by one again to realize the discharge work. However, this discharge method has poor continuity and low work efficiency because it needs to stop frequently during discharge. At the same time, because the workers need to put food into the trays one by one, and it is impossible to discharge multiple trays at the same time, the operation method is relatively cumbersome, which is not conducive to the construction and popularization of modern automated production. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a material discharging structure for food vacuum packaging, and the specific technical solution adopted is:

[0004] A feeding structure for food vacuum packaging, comprising a narrow conveyor belt for conveying food one by one, a plurality of groups of reversing units arranged side by side, and a pinching unit arranged on each group of reversing units, the arrangement direction of the plurality of groups of reversing units is colinear with the conveying direction of the narrow conveyor belt, the reversing unit is used to reversibly convey the food into the pinching unit, the pinching unit is located at the side of the reversing unit and is used to convey the food downward;

[0005] The reversing unit comprises a fixed platform, on which a plurality of rotating balls are rotatably arranged, the top and bottom of the rotating balls are both located outside the fixed platform, a transmission belt for providing power to the plurality of rotating balls is arranged at the bottom of the fixed platform, and the bottoms of the plurality of rotating balls are in contact with the upper surface of the transmission belt;

[0006] Among them, when the running direction of the transmission belt is parallel to the conveying direction of the narrow conveyor belt, the rotating ball on the fixed platform is used to transport food along the conveying direction of the narrow conveyor belt. When the transmission belt rotates and changes direction on the horizontal plane, the running direction of the transmission belt is perpendicular to the conveying direction of the narrow conveyor belt, and the rotating ball transports the food on it into the clamping unit.

[0007] Furthermore, the clamping unit is composed of a first pressure conveying belt and a second pressure conveying belt. The first pressure conveying belt is driven by three first transmission columns located therein, and the second pressure conveying belt is driven by three second transmission columns located therein. A material conveying channel is formed between the first pressure conveying belt and the second pressure conveying belt. The material conveying channel is composed of an inclined channel and a vertical channel. The inclined channel is inclined downward, and the vertical channel is vertical.

[0008] Furthermore, the second pressure conveyor belt is made of a material selected from rubber, polyurethane and plastic;

[0009] Side plates are arranged on both sides of the multiple groups of clamping and conveying units, the first transmission columns on the two adjacent groups of clamping and conveying units are connected to each other, and the second transmission columns are connected to each other. The first transmission columns and the second transmission columns on the two groups of clamping and conveying units located on both sides of the multiple groups of clamping and conveying units are rotatably installed on the corresponding side plates, and the first motor is arranged on the side plates, and the first motor is driven by a first transmission column.

[0010] Further, the shape of the transmission belt is an inverted triangle, the upper surface of the transmission belt is horizontal, and a third transmission column is provided at each corner thereof;

[0011] A support plate is arranged in the transmission belt, and the support plate is used to lift the upper surface of the transmission belt. The support plate consists of a first long-tooth bracket and a second long-tooth bracket, and the first long-tooth bracket and the second long-tooth bracket are cross-slidably connected to each other. A connecting plate is arranged at each end of the two third transmission columns located on the upper side of the transmission belt, and the third transmission columns rotate on the connecting plates. The two connecting plates on one third transmission column are connected to the first long-tooth bracket, and the two connecting plates on the other third transmission column are connected to the second long-tooth bracket.

[0012] Furthermore, the reversing unit also includes a fixed frame, a slider is vertically slidably arranged on the side wall of the fixed frame, a second motor is arranged on the slider, and the first pressure belt on the lower side of the transmission belt is transmission-connected to the second motor.

[0013] Furthermore, the fixed frame is U-shaped with a horizontal opening, the upper side of the fixed frame is inserted into the transmission belt, a turntable is rotatably provided on the top of the fixed frame, the turntable and the fixed frame are connected by a leaf spring, and two synchronization rods are eccentrically rotatably provided on the turntable, one synchronization rod is rotatably connected to the first long-tooth bracket, and the other synchronization rod is rotatably connected to the second long-tooth bracket.

[0014] Furthermore, the outer sides of the multiple groups of reversing units share an outer frame, the side plates are fixed on the outer frame, the multiple fixed platforms on the multiple groups of reversing units are connected in sequence, the two fixed platforms located at the two ends of the multiple fixed platforms are fixed on the outer frame, a flat plate is fixed in the outer frame, a plurality of rotating shafts are rotatably inserted on the flat plate, the bottom of the fixed frame is fixed on the rotating shaft, a plurality of square grooves are opened on the flat plate, the square grooves are sleeved on the outer side of the axis of the rotating shaft, a sliding column is slidably provided in the square groove, a sub-plate is fixed on the sliding column, and the sub-plate and the slider are connected by an adjusting plate;

[0015] A reinforcing rod is horizontally slidably arranged on the fixed frame, the sliding direction of the reinforcing rod is parallel to the axis of the first pressure conveying belt, and the square groove passes through the reinforcing rod and is rotatably fixedly connected.

[0016] Furthermore, each of the rotating shafts is provided with a worm gear, a third motor is fixed in the outer frame, an output end of the third motor is provided with a worm gear, and the worm gear is meshingly connected with each worm gear.

[0017] The advantages of the present invention are:

[0018] By adopting the automated unloading method, the downtime caused by manual operation can be significantly reduced, making the entire packaging process more continuous and improving production efficiency. In addition, by unloading materials into multiple trays at the same time, the inefficiency of unloading materials one by one in the traditional method can be avoided. Automated unloading reduces the manual intervention of workers, making the operation simpler and faster, reducing labor intensity and possible human errors. The design of this unloading structure is very suitable for integration into modern fully automatic production lines, which helps to realize the automation of the entire production process and can more easily work with other automated equipment to form a complete production line. In summary, this new unloading structure can not only improve production efficiency and product quality, but also simplify the operating process and reduce production costs, which is in line with the trend of automation and standardization in the modern food industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective;

[0022] Figure 3yes Figure 1 A schematic diagram of the structure of multiple groups of switching units;

[0023] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of the middle commutation unit;

[0024] Figure 5 yes Figure 4 A schematic diagram of the structure from another perspective;

[0025] Figure 6 yes Figure 5 A partial top view of the enlarged structure of the middle fixing frame;

[0026] Figure 7 yes Figure 4 A cross-sectional and enlarged schematic diagram of the structure of the middle transmission belt viewed from above;

[0027] Figure 8 yes Figure 1 Schematic diagram of the enlarged structure of the middle clamping and feeding unit;

[0028] 1. A plurality of conveyor belts are provided with a plurality of guide rails, each of which is provided with a plurality of guide rails. The plurality of guide rails are provided with a plurality of guide rails, each of which is provided with a plurality of guide rails. The plurality of guide rails are provided with a plurality of guide rails. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0032] like Figures 1 to 8 As shown, a food vacuum packaging unloading structure of the present invention comprises a narrow conveyor belt 1 for conveying food one by one, a plurality of groups of reversing units 2 arranged side by side, and a pinching unit 3 arranged on each group of reversing units 2, the arrangement direction of the plurality of groups of reversing units 2 is colinear with the conveying direction of the narrow conveyor belt 1, the reversing unit 2 is used to reversibly convey the food into the pinching unit 3, the pinching unit 3 is located at the side of the reversing unit 2 and is used to convey the food downward;

[0033] The reversing unit 2 includes a fixed platform 4, on which a plurality of rotating balls 5 are rotatably arranged, the top and bottom of the rotating balls 5 are both located outside the fixed platform 4, a transmission belt 6 for providing power to the plurality of rotating balls 5 is arranged at the bottom of the fixed platform 4, and the bottoms of the plurality of rotating balls 5 are in contact with the upper surface of the transmission belt 6;

[0034] Among them, when the running direction of the transmission belt 6 is parallel to the conveying direction of the narrow conveyor belt 1, the rotating ball 5 on the fixed platform 4 is used to convey food along the conveying direction of the narrow conveyor belt 1. When the transmission belt 6 rotates and changes direction on the horizontal plane, the running direction of the transmission belt 6 is perpendicular to the conveying direction of the narrow conveyor belt 1, and the rotating ball 5 conveys the food on it into the clamping unit 3.

[0035] In detail, during vacuum packaging, multiple trays 8 are transported on the wide conveyor belt 7, and multiple trays 8 are arranged side by side along the conveying direction perpendicular to the wide conveyor belt 7, so that when vacuuming, multiple trays 8 and the meat steak foods therein can be packaged and processed at the same time, rather than vacuuming each tray 8 separately. The narrow conveyor belt 1 transports the steaks along its conveying direction. At this time, the steaks are transported in a row. Multiple groups of reversing units 2 are arranged along the conveying direction of the narrow conveyor belt 1. When the steaks are transported to the multiple rotating balls 5 on the reversing unit 2, the transmission belt 6 on the reversing unit 2 will run and drive the multiple rotating balls 5 to rotate in the same direction. The rotating balls 5 transport the steaks horizontally along the conveying direction of the narrow conveyor belt 1, so that the steaks are transported from one reversing unit 2 to another reversing unit 2. When there are steaks on the reversing unit 2 on the farthest side from the narrow conveyor belt 1, the reversing unit 2 stops running, and the steaks stay on the reversing unit 2. From the side away from the narrow conveyor belt 1 to the side close to the narrow conveyor belt 1, the meat cutlets stay on the multiple reversing units 2 in sequence. At this time, the arrangement direction of the meat cutlets on the multiple reversing units 2 is perpendicular to the conveying direction of the wide conveyor belt 7. The direction of the transmission belt 6 on the reversing unit 2 is adjusted to change its running direction from parallel to the conveying direction of the narrow conveyor belt 1 to perpendicular to the conveying direction of the narrow conveyor belt 1, that is, the movement direction of the transmission belt 6 is parallel to the conveying direction of the wide conveyor belt 7. The transmission belt 6 transmits and drives the multiple rotating balls 5 to move synchronously. The multiple rotating balls 5 convey the meat cutlets to the clamping unit 3 along the conveying direction of the wide conveyor belt 7, thereby realizing the reversing and conveying work of the meat cutlets, and after reversing, the multiple meat cutlets can be simultaneously transported into the multiple clamping units 3 along the conveying direction of the wide conveyor belt 7, and then after being transported by the multiple clamping units 3, the multiple arranged meat cutlets are simultaneously entered into the multiple trays 8 arranged on the wide conveyor belt 7, realizing the simultaneous discharge of multiple meat cutlet foods.

[0036] By adopting the automated material discharge method, the downtime caused by manual operation can be significantly reduced, making the entire packaging process more continuous and improving production efficiency. In addition, by discharging materials into multiple trays 8 at the same time, the inefficiency of discharging materials one by one in the traditional method can be avoided. Automated material discharge reduces the manual intervention of workers, making the operation simpler and faster, reducing labor intensity and possible human errors. The design of this material discharge structure is very suitable for integration into a modern fully automatic production line, which helps to realize the automation of the entire production process and can more easily work with other automated equipment to form a complete production line. In summary, this new material discharge structure can not only improve production efficiency and product quality, but also simplify the operating process and reduce production costs, which is in line with the trend of automation and standardization in the modern food industry.

[0037] Furthermore, the clamping unit 3 is composed of a first pressure conveying belt 9 and a second pressure conveying belt 10. The first pressure conveying belt 9 is driven by three first transmission columns 11 located therein, and the second pressure conveying belt 10 is driven by three second transmission columns 12 located therein. A material conveying channel is formed between the first pressure conveying belt 9 and the second pressure conveying belt 10. The material conveying channel is composed of an inclined channel 13 and a vertical channel 14. The inclined channel 13 is inclined downward, and the vertical channel 14 is vertical.

[0038] In detail, three first transmission columns 11 support the first pressure conveying belt 9, and three second transmission columns 12 support the second pressure conveying belt 10. When the reversing unit 2 conveys the meat steak to the clamping unit 3, the meat steak enters the feeding channel, and the first pressure conveying belt 9 is driven on the three first transmission columns 11, and the first pressure conveying belt 9 drives the meat steak to pass through the inclined channel 13 and the vertical channel 14 in sequence, and the second pressure conveying belt 10 squeezes the meat steak, thereby achieving a pressure conveying effect on the meat steak through the first pressure conveying belt 9 and the second pressure conveying belt 10, which makes it convenient to keep the meat steak flat and avoid wrinkles or deformation. When the meat steak moves, it can drive the second pressure conveying belt 10 to move on the three second transmission columns 12.

[0039] Since the vertical channel 14 is vertical, the steak can be conveyed vertically downward. At this time, since the wide conveyor belt 7 continues to convey multiple trays 8 thereon, one end of the steak output by the vertical channel 14 falls into the tray 8. As the tray 8 moves and the vertical channel 14 continues to output the steak, the entire steak can be gradually spread out in the tray 8, thereby avoiding deformation or wrinkles of the steak in the tray 8 and improving its aesthetics.

[0040] Furthermore, the second pressure conveyor belt 10 is made of a material selected from rubber, polyurethane and plastic;

[0041] Side plates 15 are provided on both sides of the multiple groups of clamping units 3, the first transmission columns 11 on the two adjacent groups of clamping units 3 are connected, and the second transmission columns 12 are connected. The first transmission columns 11 and the second transmission columns 12 on the two groups of clamping units 3 located on both sides of the multiple groups of clamping units 3 are rotatably installed on the corresponding side plates 15, and a first motor 16 is provided on the side plate 15, and the first motor 16 is driven by a first transmission column 11.

[0042] In detail, by using rubber, polyurethane, plastic and other materials to make the second conveying belt 10, the second conveying belt 10 can be made more elastic, so that in the natural state, the second conveying belt 10 can be attached to the surface of the first conveying belt 9. When the steak enters the feeding channel, the second conveying belt 10 can be elastically deformed due to the squeezing of the steak, so that the second conveying belt 10 always provides a smooth squeezing force on the steak or the first conveying belt 9, avoiding the situation where the second conveying belt 10 is inelastic or has low elasticity, the steak cannot push the second conveying belt 10 to deform and the second conveying belt 10 exerts excessive squeezing pressure on the steak.

[0043] Multiple groups of clamping units 3 can be connected through the first transmission column 11 and the second transmission column 12 thereon, the two side plates 15 can support the multiple groups of clamping units 3, and the first motor 16 can provide power for a first transmission column 11, thereby driving multiple first pressure conveying belts 9 and multiple second pressure conveying belts 10 to run.

[0044] Furthermore, the shape of the transmission belt 6 is an inverted triangle, the upper surface of the transmission belt 6 is horizontal, and a third transmission column 19 is provided at each corner thereof;

[0045] A support plate is provided in the transmission belt 6, which is used to lift the upper surface of the transmission belt 6. The support plate consists of a first long-tooth bracket 17 and a second long-tooth bracket 18. The first long-tooth bracket 17 and the second long-tooth bracket 18 are cross-slidably connected to each other. A connecting plate 20 is provided at each end of the two third transmission columns 19 located on the upper side of the transmission belt 6, and the third transmission columns 19 rotate on the connecting plates 20. The two connecting plates 20 on one third transmission column 19 are connected to the first long-tooth bracket 17, and the two connecting plates 20 on the other third transmission column 19 are connected to the second long-tooth bracket 18.

[0046] In detail, the fixed platform 4 is square in shape, and the surface on which the multiple rotating balls 5 are arranged on the fixed platform 4 is square. The three third transmission columns 19 can support the transmission belt 6. When the transmission belt 6 changes direction, in order to avoid mutual interference between two adjacent groups of reversing units 2, it is necessary to reduce the upper surface width of the transmission belt 6, that is, the two third transmission columns 19 located on the upper side of the transmission belt 6 are close to each other to reduce the area occupied by the transmission belt 6 on the horizontal plane.

[0047] The support plate can lift the top of the inner wall of the transmission belt 6 so that the upper surface of the transmission belt 6 remains flat, so that the upper surface of the transmission belt 6 can contact multiple rotating balls 5 at the same time, making it convenient for the transmission belt 6 to provide effective power for the multiple rotating balls 5. When the upper surface of the transmission belt 6 becomes narrower, the two third transmission columns 19 on the upper side can push the first long-tooth bracket 17 and the second long-tooth bracket 18 to slide crosswise with each other through the connecting plate 20, so that the support plate is deformed and the length of the support plate is reduced so that it follows the deformation of the transmission belt 6 and moves synchronously, and avoids mutual interference between the two transmission belts 6 on the two adjacent groups of reversing units 2. The connecting plate 20 can support the first long-tooth bracket 17 or the second long-tooth bracket 18.

[0048] Furthermore, the reversing unit 2 also includes a fixed frame 21, a slider 22 is vertically slidably arranged on the side wall of the fixed frame 21, a second motor 23 is arranged on the slider 22, and the first pressure belt 9 on the lower side of the transmission belt 6 is transmission-connected to the second motor 23.

[0049] In detail, the fixing frame 21 can provide support for the third transmission column 19 on the lower side of the transmission belt 6, that is, the third transmission column 19 is rotatably installed on the slider 22, and the second motor 23 provides power for it, thereby enabling the second motor 23 to drive the transmission belt 6 and the three third transmission columns 19 for transmission. When the two first pressure belts 9 on the upper side of the transmission belt 6 approach each other, the slider 22 moves downward and pulls the third transmission column 19 on the lower side to move, thereby keeping the transmission belt 6 taut.

[0050] Furthermore, the shape of the fixed frame 21 is U-shaped, and its opening is horizontal. The upper side of the fixed frame 21 is inserted into the transmission belt 6. A turntable 24 is rotatably provided on the top of the fixed frame 21. The turntable 24 and the fixed frame 21 are connected by a leaf spring 25. Two synchronization rods 26 are eccentrically rotatably provided on the turntable 24. One synchronization rod 26 is rotatably connected to the first long-tooth bracket 17, and the other synchronization rod 26 is rotatably connected to the second long-tooth bracket 18.

[0051] In detail, the fixed frame 21 supports the first long-tooth bracket 17 and the second long-tooth bracket 18 through the turntable 24 and the two synchronization rods 26. When the first long-tooth bracket 17 and the second long-tooth bracket 18 are close to each other, the first long-tooth bracket 17 and the second long-tooth bracket 18 drive the two synchronization rods 26 to move, and the two synchronization rods 26 drive the turntable 24 to rotate, thereby utilizing this structure to realize the synchronous movement of the first long-tooth bracket 17 and the second long-tooth bracket 18. The leaf spring 25 can provide an elastic thrust for the turntable 24, thereby providing an elastic force for the first long-tooth bracket 17 and the second long-tooth bracket 18 to separate from each other. In this way, the leaf spring 25 can be used to keep the transmission belt 6 in a taut state, and combined with the directional effect of the third transmission column 19 on the second motor 23, the transmission belt 6 and the three third transmission columns 19 thereon cannot be deformed and moved at will.

[0052] Further, the outer sides of the multiple groups of reversing units 2 share an outer frame 27, the side plates 15 are fixed on the outer frame 27, the multiple fixed platforms 4 on the multiple groups of reversing units 2 are connected in sequence, the two fixed platforms 4 located at the two ends of the multiple fixed platforms 4 are fixed on the outer frame 27, a flat plate 28 is fixed in the outer frame 27, a plurality of rotating shafts 29 are rotatably inserted on the flat plate 28, the bottom of the fixed frame 21 is fixed on the rotating shaft 29, a plurality of square grooves 30 are opened on the flat plate 28, the square grooves 30 are sleeved on the outer side of the axis of the rotating shaft 29, a sliding column 31 is slidably provided in the square groove 30, a sub-plate 32 is fixed on the sliding column 31, and the sub-plate 32 is connected to the slider 22 through an adjustment plate 33;

[0053] A reinforcing rod 34 is horizontally slidably provided on the fixing frame 21 , and the sliding direction of the reinforcing rod 34 is parallel to the axis of the first pressing belt 9 , and the square groove 30 passes through the reinforcing rod 34 and is rotatably fixedly connected.

[0054] In detail, the outer frame 27 can support multiple groups of reversing units 2 and multiple groups of clamping units 3, and the flat plate 28 can support multiple fixed frames 21 through multiple rotating shafts 29. When the rotating shaft 29 rotates, the rotating shaft 29 can drive the fixed frame 21 to rotate, and the fixed frame 21 can drive the three third transmission columns 19 and the transmission belt 6 to rotate synchronously, thereby reversing the transmission belt 6. At this time, the fixed frame 21 will push the sliding column 31 to slide in the square groove 30 through the reinforcing rod 34, and the sliding column 31 is transferred from the middle of one side of the square groove 30 to the middle of the other side. In this process, the sliding column 31 gradually moves away from the rotating shaft 29, and then approaches the rotating shaft 29, that is, the sliding column 31 pulls the slider 22 downward through the sub-plate 32 and the adjusting plate 33, and then moves the slider 22 upward and resets, thereby making the two third transmission columns 19 on the upper side of the transmission belt 6 approach each other and avoid the transmission belt 6 on the adjacent reversing unit 2 when following the reversal of the transmission belt 6, and then separate from each other to a specified distance.

[0055] As the distance between the sliding column 31 and the rotating shaft 29 changes, the reinforcing rod 34 slides on the fixing frame 21 , the adjusting plate 33 tilts, one end of the adjusting plate 33 is rotatably connected to the auxiliary plate 32 , and the other end of the adjusting plate 33 is rotatably connected to the slider 22 .

[0056] Furthermore, a worm gear 35 is disposed on each of the rotating shafts 29 , a third motor 36 is fixed in the outer frame 27 , and a worm 37 is provided at the output end of the third motor 36 , and the worm 37 is meshedly connected with each of the worm gears 35 .

[0057] In detail, the third motor 36 can drive the multiple worm wheels 35 and the multiple rotating shafts 29 to move synchronously in the same direction through the worm 37, so that the multiple groups of reversing units 2 can realize the reversing movement synchronously.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A material discharging structure for food vacuum packaging, characterized in that: The invention comprises a narrow conveyor belt for conveying food one by one, a plurality of groups of reversing units arranged side by side, and a pinching unit arranged on each group of reversing units, wherein the arrangement direction of the plurality of groups of reversing units is colinear with the conveying direction of the narrow conveyor belt, the reversing unit is used to reversibly convey the food into the pinching unit, the pinching unit is located at the side of the reversing unit and is used to convey the food downward; The reversing unit comprises a fixed platform, on which a plurality of rotating balls are rotatably arranged, the top and bottom of the rotating balls are both located outside the fixed platform, a transmission belt for providing power to the plurality of rotating balls is arranged at the bottom of the fixed platform, and the bottoms of the plurality of rotating balls are in contact with the upper surface of the transmission belt; Among them, when the running direction of the transmission belt is parallel to the conveying direction of the narrow conveyor belt, the rotating ball on the fixed platform is used to convey the food along the conveying direction of the narrow conveyor belt. When the transmission belt rotates and changes direction on the horizontal plane, the running direction of the transmission belt is perpendicular to the conveying direction of the narrow conveyor belt, and the rotating ball conveys the food on it into the clamping unit; The clamping unit is composed of a first pressure conveying belt and a second pressure conveying belt, the first pressure conveying belt is driven by three first transmission columns located therein, and the second pressure conveying belt is driven by three second transmission columns located therein, a material conveying channel is formed between the first pressure conveying belt and the second pressure conveying belt, and the material conveying channel is composed of an inclined channel and a vertical channel, the inclined channel is inclined downward, and the vertical channel is vertical; The second pressure conveyor belt is made of a material selected from rubber, polyurethane and plastic; Side plates are arranged on both sides of the multiple groups of pinching and conveying units, the first transmission posts on the two adjacent groups of pinching and conveying units are butted, and the second transmission posts are butted, and the first transmission posts and the second transmission posts on the two groups of pinching and conveying units located on both sides of the multiple groups of pinching and conveying units are rotatably mounted on the corresponding side plates, and the side plates are provided with first motors, which are driven by one first transmission post; The shape of the transmission belt is an inverted triangle, the upper surface of the transmission belt is horizontal, and a third transmission column is arranged at each corner thereof; A support plate is provided in the transmission belt, and the support plate is used to lift the upper surface of the transmission belt. The support plate is composed of a first long-tooth bracket and a second long-tooth bracket, and the first long-tooth bracket and the second long-tooth bracket are cross-slidably connected to each other. A connecting plate is provided at each end of the two third transmission columns located on the upper side of the transmission belt, and the third transmission columns rotate on the connecting plates. The two connecting plates on one third transmission column are connected to the first long-tooth bracket, and the two connecting plates on the other third transmission column are connected to the second long-tooth bracket; The reversing unit further comprises a fixed frame, a slider is vertically slidably arranged on the side wall of the fixed frame, a second motor is arranged on the slider, and a first pressure conveying belt on the lower side of the transmission belt is transmission-connected to the second motor; The fixing frame is in a U-shape, with a horizontal opening, the upper side of the fixing frame is inserted into the transmission belt, a turntable is rotatably arranged on the top of the fixing frame, the turntable and the fixing frame are connected by a leaf spring, two synchronous rods are eccentrically rotatably arranged on the turntable, one synchronous rod is rotatably connected to the first long-tooth bracket, and the other synchronous rod is rotatably connected to the second long-tooth bracket; The outer sides of the multiple groups of reversing units share an outer frame, the side plates are fixed on the outer frame, the multiple fixed platforms on the multiple groups of reversing units are connected in sequence, the two fixed platforms at the two ends of the multiple fixed platforms are fixed on the outer frame, a flat plate is fixed in the outer frame, a plurality of rotating shafts are rotatably inserted on the flat plate, the bottom of the fixed frame is fixed on the rotating shaft, a plurality of square grooves are opened on the flat plate, the square grooves are sleeved on the outer side of the axis of the rotating shaft, a sliding column is slidably provided in the square groove, a sub-plate is fixed on the sliding column, and the sub-plate and the slider are connected by an adjusting plate; A reinforcing rod is horizontally slidably arranged on the fixed frame, the sliding direction of the reinforcing rod is parallel to the axis of the first pressure conveying belt, and the square groove passes through the reinforcing rod and is rotatably fixedly connected.

2. A food vacuum packaging material discharge structure according to claim 1, characterized in that: A worm gear is arranged on each of the rotating shafts, a third motor is fixed in the outer frame, a worm is arranged on the output end of the third motor, and the worm is meshedly connected with each of the worm gears.

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