Bread packaging device and bread aeration packaging method

Abstract

The present invention relates to the technical field of food packaging, and discloses a packaging device for bread processing and a method for aerating and packaging bread. In the present invention, bread to be packaged is transported one by one to a guiding conveying mechanism through a separating input mechanism. The guiding conveying mechanism guides one bread to be packaged into a continuously formed packaging tube at a time, and simultaneously injects gas into the packaging tube through a gas nozzle, thereby being able to inject gas into the packaging tube and each bread packaging bag that has been sealed and formed later; the movable end of the guiding conveying mechanism retracts and contracts at the same frequency as the separating input mechanism transports a single bread to be packaged, thereby being able to input the bread one by one into the packaging tube that has been pre-formed by a packaging forming mechanism, thereby being able to effectively complete the packaging and aeration operations of the bread, and being able to effectively ensure the aeration packaging efficiency of the bread while ensuring the aeration packaging effect of the bread through the one-by-one transport of the bread by the separating input mechanism and the one-by-one guidance of the guiding conveying mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of food packaging, in particular to a packaging device for bread processing and a method for aerating and packaging bread. Background Art

[0002] Bread, a food consumed daily, is widely consumed, and its packaging technology directly impacts its shelf life, appearance, and transportation efficiency. Traditional bread packaging systems primarily consist of automated sorting systems, conveyor belts, heat sealers, and finished product collection bins. In industrial production, after baking and cooling, bread is transported by conveyor belts to packaging stations, where it is robotically or manually placed into prefabricated plastic bags or films. These bags are then sealed using heat-sealing technology. Some high-end equipment incorporates nitrogen or mixed gas displacement devices to extend the bread's shelf life.

[0003] Inflatable packaging is a widely used fresh-keeping technology in the bread industry. It works by injecting an inert gas (such as nitrogen, carbon dioxide, or a mixture thereof) into the packaging bag to displace oxygen, inhibiting microbial growth and delaying spoilage. Existing technology often uses continuous inflatable packaging equipment to package bread, which uses a form-fill-seal process.

[0004] Due to the structural setting of the existing continuous inflation packaging machine, bread cannot enter the packaging system one by one. As a result, when entering the packaging bag, the bread is easily squeezed against each other and enters the same packaging bag, resulting in loose packaging of the packaging bag and damage to the bread, causing the packaging machine to stop, affecting the efficiency of packaging bread. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a packaging device for bread processing and a method for aerating and packaging bread.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A packaging device for bread processing, comprising a packaging support frame, wherein the input end of the packaging support frame is provided with a bread input layer and a packaging input layer, the packaging input layer is internally provided with a packaging input mechanism and a packaging forming mechanism, the bread input layer is internally provided with a separating input mechanism, and the packaging support frame is also internally provided with a guiding conveying mechanism, a packaging heat sealing mechanism and a guiding output mechanism; the packaging forming mechanism comprises a winding cone and a rolling forming unit, the movable end of the guiding conveying mechanism can be moved in and out from the end of the winding cone away from the rolling forming unit, and the movable end of the guiding conveying mechanism is provided with a gas nozzle; the strip-shaped packaging material output from the packaging input mechanism is wound into a cylinder under the guidance of the outer wall of the winding cone, and is formed into a packaging cylinder through hot pressing and compounding of the rolling forming unit; the separating input mechanism can input the bread to be packaged to the top of the guiding conveying mechanism at a fixed frequency, and the movable end of the guiding conveying mechanism is extended and retracted at the same frequency; when the movable end of the guiding conveying mechanism moves into the interior of the winding cone, it can guide the bread to be packaged to fall into the interior of the packaging cylinder, and the gas nozzle can simultaneously inject gas into the interior of the packaging cylinder.

[0008] Preferably, the packaging heat-sealing mechanism includes a fixed heat-sealing splint, a movable heat-sealing splint and a serrated cutter, and the guiding and output mechanism includes a deflection guide plate and an output conveyor belt; the movable heat-sealing splint can move toward the fixed heat-sealing splint, and after the movable heat-sealing splint and the fixed heat-sealing splint are closed, they can clamp and heat-press seal the bottom ends of the packaging tube; after the bottom ends of the packaging tube are heat-press sealed, the serrated cutter can extend from the inside of the movable heat-sealing splint into the inside of the fixed heat-sealing splint to cut and separate the previous section of the packaging tube from the next section of the packaging tube; the two ends of the deflection guide plate are respectively located below the fixed heat-sealing splint and above one end of the output conveyor belt, and the deflection guide plate can guide each section of the packaging tube to slide above the output conveyor belt after cutting.

[0009] Preferably, the packaging heat sealing mechanism also includes a fixed heat sealing frame, the movable heat sealing splint is slidably connected to the fixed heat sealing frame, and a heat sealing drive cylinder and a cutting drive cylinder are further provided inside the fixed heat sealing frame; the movable end of the heat sealing drive cylinder is fixed to the movable heat sealing splint, and the cutting drive cylinder is fixed to the serrated cutter, and after the movable heat sealing splint and the fixed heat sealing splint are fitted together under the drive of the heat sealing drive cylinder, the cutting drive cylinder can drive the serrated cutter to move from the inside of the movable heat sealing splint to the inside of the fixed heat sealing splint.

[0010] Preferably, the separation input mechanism includes an input guide plate, a separation guide groove is provided in the center of the input guide plate, a circulating conveyor chain is arranged under the input guide plate, a plurality of separation guide rods are fixed at equal intervals on the circulating conveyor chain, and the separation guide rods can move inside the separation guide groove with the circulating conveyor chain; a plurality of tensioning sprockets are arranged inside the circulating conveyor chain, and a sprocket drive motor is provided on one side of one tensioning sprocket, and the sprocket drive motor can output power to drive the circulating conveyor chain to move in a circular motion.

[0011] Preferably, the guide conveying mechanism also includes a guide conveying frame and a guide conveying plate, the guide conveying plate is slidably connected to the guide conveying frame, and a transmission wheel is provided at one end of the guide conveying frame close to the separation input mechanism, and one end of the transmission wheel is connected to the guide conveying plate through a transmission connecting rod; the transmission wheel is also power-connected to the sprocket drive motor, and the sprocket drive motor can also drive the transmission wheel to rotate; a guide sliding rail is provided inside the guide conveying frame, and the two ends of the guide conveying plate are embedded in the guide sliding rail; when the transmission connecting rod rotates with the transmission wheel, it can drive the guide conveying plate to move back and forth inside the guide sliding rail.

[0012] Preferably, the guide sliding rail is arranged to be inclined downward at one end close to the partition input mechanism toward the end close to the winding cone, an extension guide plate is provided at the end of the guide conveying plate away from the partition input mechanism, and the gas nozzle is arranged below the extension guide plate; in the process of the extension guide plate reciprocating with the guide conveying plate, it can cyclically move in and out from the end of the winding cone away from the rolling forming unit, and when the extension guide plate is located inside the winding cone, the gas nozzle can spray gas.

[0013] Preferably, the packaging input mechanism includes a packaging input frame, and the packaging input frame is provided with an unwinding installation roller, a directional guide roller, a tensioning guide roller and a friction input roller; an input tensioning frame is extended on one side of the packaging input frame, and the tensioning guide roller can slide inside the input tensioning frame to adjust the distance between the input tensioning frame and the friction input roller; an input drive motor is provided at one end of the friction input roller, and the input drive motor can drive the friction input roller to rotate and adjust the output speed of the strip-shaped packaging material output from the outside of the friction input roller.

[0014] Preferably, a plurality of winding pressing rollers are provided on the outside of the winding cone, and a superimposed pressing roller is further provided on one end of the winding cone close to the rolling forming unit; the winding pressing rollers and the outer wall of the winding cone jointly limit the winding shape of the passing strip-shaped packaging material; both sides of the strip-shaped packaging material pass through the superimposed pressing rollers, and the two sides of the strip-shaped packaging material are conveyed to the rolling forming unit in a bonded state.

[0015] Preferably, the rolling forming unit includes a rolling forming splint, a hot pressing forming groove is provided inside the rolling forming splint, and a plurality of hot pressing rollers are provided inside the hot pressing forming groove, so that the two sides of the strip packaging material input in a fitted state can be hot pressed and composited under the heat output by the hot pressing rollers; a friction output roller is also provided at the bottom end of the rolling forming splint, and the linear speeds of the friction input roller and the friction output roller in conveying the packaging raw materials are equal.

[0016] A method for aerating and packaging bread, using the aforementioned bread processing and packaging device, comprises the following steps:

[0017] The whole roll of packaging material is placed into the packaging input mechanism, and then after the whole roll of packaging material is unwound, the strip of packaging material is guided and sequentially passes through the winding cone, the rolling forming unit and the packaging heat sealing mechanism;

[0018] The strip-shaped packaging material is wound into a cylinder under the guidance of the outer wall of the winding cone, and then undergoes hot pressing and lamination in the rolling forming unit to form a packaging cylinder.

[0019] The bread to be packaged is transported by the separation input mechanism and then transported one by one to the guide conveyor mechanism. The guide conveyor mechanism guides one bread to be packaged into the packaging tube at a time, and at the same time, gas is injected into the packaging tube through the gas nozzle.

[0020] The packaging heat sealing mechanism heat-presses and seals the bottom end of a packaging tube containing a piece of bread to be packaged, and heat-presses and seals the top end of the upper packaging tube, and simultaneously cuts and separates the two packaging tubes;

[0021] After both ends are sealed, a section of the packaging tube containing a piece of bread falls into the guide output mechanism and is output.

[0022] Compared with the prior art, the present invention provides a bread processing packaging device and a bread inflation packaging method, which have the following beneficial effects:

[0023] 1. In the packaging device for bread processing, bread to be packaged is conveyed by a separating input mechanism and then conveyed one by one to a guiding conveying mechanism. The guiding conveying mechanism guides one bread to be packaged into a continuously formed packaging tube at a time, and simultaneously injects gas into the packaging tube through a gas nozzle, thereby injecting gas into the packaging tube and each bread packaging bag that is subsequently sealed and formed. Furthermore, by setting the guiding conveying mechanism, the movable end of the guiding conveying mechanism retracts and contracts at the same frequency as that of the separating input mechanism conveying a single bread to be packaged, thereby inputting the bread one by one into the packaging tube that has been pre-formed by the packaging forming mechanism, thereby effectively completing the packaging and aeration operations of the bread. By conveying the bread one by one by the separating input mechanism and guiding the bread one by one by the guiding conveying mechanism, the uniqueness of the amount of bread in each packaging bag produced can be ensured, thereby effectively ensuring the aeration packaging efficiency of the bread and ensuring the aeration packaging effect of the bread.

[0024] 2. This bread processing packaging device, driven by a heat-sealing driving cylinder, is fitted between a movable heat-sealing splint and a fixed heat-sealing splint. The heat outputted by the movable heat-sealing splint and the fixed heat-sealing splint can effectively clamp the bottom end of the packaging tube while sealing the bottom end of the current packaging tube and the top end of the previous packaging tube. Then, the cutting driving cylinder drives the serrated cutter to move from the inside of the movable heat-sealing splint to the inside of the fixed heat-sealing splint, thereby cutting and separating the bottom end of the previous packaging tube and the top end of the previous packaging tube, and cutting serrated lines on the bottom end of the previous packaging tube and the top end of the previous packaging tube. After being cut, the previous packaging tube carrying the sealed bread inside is guided by the deflection guide plate, slides onto the output conveyor belt, and is transported and output by the output conveyor belt.

[0025] 3. In this bread processing and packaging device, the transmission wheel is also power-connected to the sprocket drive motor, and can drive the guide conveyor plate to reciprocate inside the guide sliding track through the transmission of the transmission connecting rod. Moreover, through the downward inclination of the guide sliding track, the bread input one by one onto the top of the guide conveyor plate can be guided into the interior of the winding cone through the downward inclination of the guide conveyor plate and the extended guide plate. When the extended guide plate is located inside the winding cone, the gas nozzle can spray gas to fill the packaging tube formed in the winding cone with the required gas, and can cooperate with the rear end to perform air-filled packaging of the bread.

[0026] 4. This bread processing packaging device, through the setting of the winding and pressing rollers, stably presses the strip-shaped packaging material on the outside of the winding cone, and limits the winding shape of the strip-shaped packaging material to the outer wall shape of the winding cone, and both sides of the strip-shaped packaging material are pressed between the overlapping pressing rollers, and both sides of the strip-shaped packaging material can be input into the hot pressing forming groove of the rolling forming splint in a bonded state, and when the two sides of the strip-shaped packaging material pass through the hot pressing roller in a bonded state, they can be compounded under the heat output by the hot pressing roller to form a packaging tube, and the two sides of the compounded strip-shaped packaging material are driven by the friction output roller to continue to be conveyed to the packaging heat sealing mechanism, and in specific use, the linear speed of the packaging material conveyed by the friction input roller and the friction output roller is equal to ensure the stability of the conveying of the strip-shaped packaging material and the formed packaging tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of a bread processing and packaging device according to the present invention;

[0028] Figure 2 This is a second schematic diagram of the three-dimensional structure of a bread processing and packaging device according to the present invention;

[0029] Figure 3 This is a schematic diagram of a partial structure of a bread processing packaging device according to the present invention, with the packaging support frame removed;

[0030] Figure 4 This is a second partial structural schematic diagram of a bread processing packaging device according to the present invention, with the packaging support frame removed;

[0031] Figure 5 A schematic diagram of the conveying of a separation input mechanism, a guiding conveying mechanism and a packaging forming mechanism of a bread processing and packaging device according to the present invention;

[0032] Figure 6 A schematic diagram of the conveying of a separation input mechanism and a guide conveying mechanism of a bread processing and packaging device according to the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of a packaging input mechanism of a bread processing packaging device according to the present invention;

[0034] Figure 8 This is one of the three-dimensional structural schematic diagrams of a packaging forming mechanism, a packaging heat-sealing mechanism, and a guiding and outputting mechanism of a bread processing packaging device of the present invention;

[0035] Figure 9 This is a second schematic diagram of the three-dimensional structure of the packaging forming mechanism, packaging heat sealing mechanism and guiding and outputting mechanism of a bread processing packaging device of the present invention;

[0036] Figure 10 This is a schematic diagram of the three-dimensional structure of a packaging forming mechanism of a bread processing packaging device according to the present invention;

[0037] Figure 11 This is a second schematic diagram of the three-dimensional structure of a packaging forming mechanism of a bread processing packaging device according to the present invention;

[0038] Figure 12 This is a third schematic diagram of the three-dimensional structure of a packaging forming mechanism of a bread processing packaging device according to the present invention;

[0039] Figure 13 The figure is a schematic three-dimensional structural diagram of a packaging heat-sealing mechanism of a packaging device for bread processing according to the present invention.

[0040] Figure: 1. Packaging support frame; 11. Bread input layer; 12. Packaging input layer; 2. Packaging input mechanism; 21. Packaging input frame; 22. Unwinding and mounting roller; 23. Orienting guide roller; 24. Tensioning guide roller; 25. Friction input roller; 26. Input tensioning frame; 27. Input drive motor; 3. Packaging forming mechanism; 31. Winding cone; 32. Rolling forming unit; 321. Rolling forming clamping plate; 322. Hot pressing forming trough; 323. Hot pressing roller; 324. Friction output roller; 33. Winding and pressing roller; 34. Overlapping and pressing roller; 4. Separation input mechanism; 41. Input guide plate; 42. Partition guide groove; 43. Circulating conveyor chain; 44. Partition guide rod; 45. Tensioning sprocket; 46. Sprocket drive motor; 5. Guide conveying mechanism; 51. Gas nozzle; 52. Guide conveying frame; 521. Guide sliding track; 53. Guide conveying plate; 54. Transmission wheel; 55. Transmission connecting rod; 56. Extension guide plate; 6. Packaging heat sealing mechanism; 61. Fixed heat sealing splint; 62. Movable heat sealing splint; 63. Serrated cutter; 64. Fixed heat sealing frame; 65. Heat sealing drive cylinder; 66. Cutting drive cylinder; 7. Guide output mechanism; 71. Deflection guide plate; 72. Output conveyor belt. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] As introduced in the background technology, in order to solve the deficiencies in the existing technology, this application proposes a packaging device for bread processing and a method for aerating bread packaging.

[0043] Example 1: Please refer to Figures 1-13 A packaging device for bread processing includes a packaging support frame 1. The input end of the packaging support frame 1 is provided with a bread input layer 11 and a packaging input layer 12. The packaging input layer 12 is provided with a packaging input mechanism 2 and a packaging forming mechanism 3. The bread input layer 11 is provided with a separation input mechanism 4. The packaging support frame 1 is also provided with a guide conveying mechanism 5, a packaging heat sealing mechanism 6 and a guide output mechanism 7. The packaging forming mechanism 3 includes a winding cone 31 and a rolling forming unit 32. The movable end of the guide conveying mechanism 5 can be moved in and out from the end of the winding cone 31 away from the rolling forming unit 32. The movable end of the guiding and conveying mechanism 5 is provided with a gas nozzle 51; the strip-shaped packaging material output from the packaging input mechanism 2 is wound into a cylinder under the guidance of the outer wall of the winding cone 31, and is formed into a packaging cylinder through hot pressing and compounding of the rolling forming unit 32; the separating input mechanism 4 can input the bread to be packaged to the top of the guiding and conveying mechanism 5 at a fixed frequency, and the movable end of the guiding and conveying mechanism 5 is extended and retracted at the same frequency; when the movable end of the guiding and conveying mechanism 5 moves into the interior of the winding cone 31, it can guide the bread to be packaged to fall into the interior of the packaging cylinder, and the gas nozzle 51 can simultaneously inject gas into the interior of the packaging cylinder.

[0044] During use, preparations are first performed: a whole roll of packaging material is placed into the packaging input mechanism 2. After the roll is unwound, the strip of packaging material is guided and sequentially passed through the winding cone 31, the rolling forming unit 32, and the packaging heat-sealing mechanism 6. The strip of packaging material is guided by the outer wall of the winding cone 31 and rolled into a cylindrical shape. The strip is then hot-pressed and laminated by the rolling forming unit 32 to form a packaging cylinder. The bread to be packaged is then fed in batches and in fixed quantities to the end of the separating input mechanism 4 away from the guiding conveying mechanism 5. This completes the preparations.

[0045] The bread to be packaged is conveyed by the separating input mechanism 4 and conveyed one by one to the guiding conveying mechanism 5. The guiding conveying mechanism 5 guides one bread to be packaged into the continuously formed packaging tube at a time, and at the same time injects gas (inert gas, such as nitrogen, etc.) into the packaging tube through the gas nozzle 51, so that gas can be injected into the packaging tube and each bread packaging bag after the later closed molding; and then through the setting of the guiding conveying mechanism 5, the movable end of the guiding conveying mechanism 5 is extended and retracted at the same frequency as the separating input mechanism 4 conveying a single bread to be packaged, so that the bread can be input one by one into the packaging tube that has been pre-formed by the packaging molding mechanism 3, so that the packaging and inflation operations of the bread can be completed effectively, and the one-by-one conveying of the bread by the separating input mechanism 4 and the one-by-one guiding of the guiding conveying mechanism 5 can ensure the uniqueness of the amount of bread in each packaging bag produced, and can effectively ensure the inflation packaging efficiency of the bread while ensuring the inflation packaging effect of the bread.

[0046] Example 2: Please refer to Figures 1-13 The difference from the above embodiment is that the packaging heat sealing mechanism 6 includes a fixed heat sealing splint 61, a movable heat sealing splint 62 and a serrated cutter 63, and the guiding and output mechanism 7 includes a deflection guide plate 71 and an output conveyor belt 72; the movable heat sealing splint 62 can move toward the fixed heat sealing splint 61, and after the movable heat sealing splint 62 and the fixed heat sealing splint 61 are closed, they can clamp and heat-press seal the bottom ends of the packaging tube; after the bottom ends of the packaging tube are heat-press sealed, the serrated cutter 63 can extend from the inside of the movable heat sealing splint 62 into the inside of the fixed heat sealing splint 61 to cut and separate the previous section of the packaging tube from the next section of the packaging tube; the two ends of the deflection guide plate 71 are respectively located below the fixed heat sealing splint 61 and above one end of the output conveyor belt 72, and the deflection guide plate 71 can guide each section of the packaging tube to slide to above the output conveyor belt 72 after cutting.

[0047] The packaging heat sealing mechanism 6 also includes a fixed heat sealing frame 64, a movable heat sealing splint 62 and the fixed heat sealing frame 64 are slidingly connected, and a heat sealing drive cylinder 65 and a cutting drive cylinder 66 are also provided inside the fixed heat sealing frame 64; the movable end of the heat sealing drive cylinder 65 is fixed between the movable heat sealing splint 62, and the cutting drive cylinder 66 is fixed between the serrated cutter 63. Under the drive of the heat sealing drive cylinder 65, after the movable heat sealing splint 62 and the fixed heat sealing splint 61 are fitted together, the cutting drive cylinder 66 can drive the serrated cutter 63 to move from the inside of the movable heat sealing splint 62 to the inside of the fixed heat sealing splint 61.

[0048] During specific use, the movable heat-sealing clamp 62 is fitted with the fixed heat-sealing clamp 61 under the drive of the heat-sealing driving cylinder 65, and the heat output by the movable heat-sealing clamp 62 and the fixed heat-sealing clamp 61 can effectively clamp the bottom end of the packaging tube and heat-press and seal the bottom ends of the packaging tube at the same time. The heat-pressing seal simultaneously seals the bottom end of the current packaging tube and the top end of the previous packaging tube. During this clamping process, a bread to be packaged enters the bottom end of the packaging tube through the guidance of the winding cone 31 and is blocked above the movable heat-sealing clamp 62 and the fixed heat-sealing clamp 61. , through the hot-pressing sealing of the bottom end of the packaging tube, the bread can be kept inside the packaging tube of this section; then the cutting drive cylinder 66 drives the serrated cutter 63 to move from the inside of the movable heat-sealing clamping plate 62 to the inside of the fixed heat-sealing clamping plate 61, thereby being able to cut and separate the bottom end of the previous packaging tube and the top end of the previous packaging tube, and cut the bottom end of the previous packaging tube and the top end of the previous packaging tube into serrated patterns; after being cut, the previous packaging tube carrying the sealed bread inside is guided by the deflection guide plate 71, slides to the top of the output conveyor belt 72, and is transported and output by the output conveyor belt 72.

[0049] Example 3: Please refer to Figures 1-13The difference from the above embodiment is that the separation input mechanism 4 includes an input guide plate 41, a separation guide groove 42 is opened in the center of the input guide plate 41, a circulating conveyor chain 43 is arranged under the input guide plate 41, and a plurality of separation guide rods 44 are fixed at equal intervals on the circulating conveyor chain 43, and the separation guide rods 44 can move inside the separation guide groove 42 with the circulating conveyor chain 43; a plurality of tensioning sprockets 45 are arranged inside the circulating conveyor chain 43, and a sprocket drive motor 46 is arranged on one side of a tensioning sprocket 45, and the sprocket drive motor 46 can output power to drive the circulating conveyor chain 43 to move in a circular motion.

[0050] The guiding conveying mechanism 5 also includes a guiding conveying frame 52 and a guiding conveying plate 53. The guiding conveying plate 53 is slidingly connected to the guiding conveying frame 52. A transmission wheel 54 is provided at one end of the guiding conveying frame 52 close to the separation input mechanism 4. One end of the transmission wheel 54 is connected to the guiding conveying plate 53 through a transmission connecting rod 55; the transmission wheel 54 is also power-connected to the sprocket drive motor 46, and the sprocket drive motor 46 can also drive the transmission wheel 54 to rotate; a guiding sliding rail 521 is provided inside the guiding conveying frame 52, and both ends of the guiding conveying plate 53 are embedded in the guiding sliding rail 521; when the transmission connecting rod 55 rotates with the transmission wheel 54, it can drive the guiding conveying plate 53 to move back and forth inside the guiding sliding rail 521.

[0051] The guide sliding rail 521 is arranged to be inclined downward at one end close to the partitioning input mechanism 4 toward the end close to the winding cone 31, and an extension guide plate 56 is provided at the end of the guide conveying plate 53 away from the partitioning input mechanism 4, and the gas nozzle 51 is arranged below the extension guide plate 56; in the process of the extension guide plate 56 moving back and forth with the guide conveying plate 53, it can cyclically move in and out from the end of the winding cone 31 away from the rolling molding unit 32, and when the extension guide plate 56 is located inside the winding cone 31, the gas nozzle 51 can spray gas.

[0052] During specific use, the sprocket drive motor 46 outputs power to drive a tensioning sprocket 45, so that the circulating conveyor chain 43 tensioned on the outside of each tensioning sprocket 45 moves in a circular motion, and since a number of partition guide rods 44 are fixed at equal intervals on the outside of the circulating conveyor chain 43, the partition guide rods 44 can maintain equal intervals when moving inside the partition guide groove 42, and can drive a bread to be packaged to move along the input guide plate 41 to above the guide conveyor plate 53 through the partition guide rod 44; and during specific use, the partition guide rod 44 is set on the side of the circulating conveyor chain 43, and can block the path of the circulating conveyor chain 43 from the input guide plate 41 to the bottom through the partition guide groove 42, so as to avoid contact between the bread to be packaged and the circulating conveyor chain 43 and be contaminated.

[0053] During specific use, the transmission wheel 54 is also connected to the sprocket drive motor 46 (in this embodiment, a transmission pulley coaxially fixed with the transmission wheel 54 and the sprocket drive motor 46 is used in combination with a transmission belt for transmission), and can be driven by a transmission connecting rod 55 (the transmission connecting rod 55 is rotatably connected to the transmission wheel 54 and the guide conveyor plate 53) (in specific use, the frequency of the reciprocating movement of the extended guide plate 56 along with the guide conveyor plate 53 is consistent with the frequency of each bread conveyed by the separation input mechanism 4 through the coordinated arrangement of the transmission wheel 54 and the transmission connecting rod 55), driving the guide plate 56. The guide conveying plate 53 moves back and forth inside the guide sliding rail 521, and through the downward inclined setting of the guide sliding rail 521, the bread input one by one onto the top of the guide conveying plate 53 can be guided into the interior of the winding cone 31 through the downward inclined conveyance of the guide conveying plate 53 and the extension guide plate 56 (the width of the extension guide plate 56 is smaller than the inner diameter of the winding cone 31), and when the extension guide plate 56 is located inside the winding cone 31, the gas nozzle 51 can spray gas, and fill the packaging tube formed in the winding cone 31 with the required gas, and can cooperate with the rear end to perform air packaging of the bread.

[0054] Example 4: Please refer to Figures 1-13 The difference from the above embodiment is that the packaging input mechanism 2 includes a packaging input frame 21, and the packaging input frame 21 is internally provided with an unwinding installation roller 22, a directional guide roller 23, a tensioning guide roller 24 and a friction input roller 25; an input tensioning frame 26 is extended on one side of the packaging input frame 21, and the tensioning guide roller 24 can slide inside the input tensioning frame 26 to adjust the distance between the input tensioning frame 26 and the friction input roller 25; an input drive motor 27 is provided at one end of the friction input roller 25, and the input drive motor 27 can drive the friction input roller 25 to rotate and adjust the output speed of the strip-shaped packaging material output from the outside of the friction input roller 25.

[0055] A plurality of winding pressing rollers 33 are provided on the outside of the winding cone 31, and a superimposed pressing roller 34 is also provided on the end of the winding cone 31 close to the rolling forming unit 32; the winding pressing rollers 33 and the outer wall of the winding cone 31 jointly limit the winding shape of the passing strip-shaped packaging material; both sides of the strip-shaped packaging material pass through the superimposed pressing rollers 34, and the two sides of the strip-shaped packaging material are conveyed to the rolling forming unit 32 in a bonded state.

[0056] The rolling forming unit 32 includes a rolling forming splint 321, a hot pressing forming groove 322 is provided inside the rolling forming splint 321, and a plurality of hot pressing rollers 323 are provided inside the hot pressing forming groove 322. The two sides of the strip packaging material input in a bonded state can be hot pressed and composited under the heat output by the hot pressing roller 323; a friction output roller 324 is also provided at the bottom end of the rolling forming splint 321, and the linear speed of the friction input roller 25 and the friction output roller 324 in conveying the packaging raw materials is equal.

[0057] During specific use, a whole roll of packaging material is installed on the unwinding installation roller 22. After the whole roll of packaging material is unwound outside the unwinding installation roller 22, it is guided in sequence along the directional guide roller 23 and the tensioning guide roller 24 (the tensioning guide roller 24 can slide inside the input tensioning frame 26 to adjust the distance between the input tensioning frame 26 and the friction input roller 25, and maintain the tensioned state of the unwound strip-shaped packaging material when conveyed inside the packaging input mechanism 2) to the outside of the friction input roller 25. The friction input roller 25 is driven to rotate by the input drive motor 27 to adjust the output speed of the strip-shaped packaging material output from the outside of the friction input roller 25, so as to stably convey the strip-shaped packaging material to one side of the winding cone 31.

[0058] By setting the winding and pressing roller 33, the strip-shaped packaging material is stably pressed on the outside of the winding cone 31, and the winding shape of the strip-shaped packaging material is limited to the outer wall shape of the winding cone 31. Both sides of the strip-shaped packaging material are pressed between the overlapping pressing rollers 34, and both sides of the strip-shaped packaging material can be input into the hot pressing forming groove 322 of the rolling forming splint 321 in a bonded state. When the two sides of the strip-shaped packaging material pass through the hot pressing roller 323 in a bonded state, they can be compounded under the heat output by the hot pressing roller 323 to form a packaging tube. The two sides of the compounded strip-shaped packaging material are driven by the friction output roller 324 and continue to be conveyed to the packaging heat sealing mechanism 6. In specific use, the linear speed of conveying the packaging material by the friction input roller 25 and the friction output roller 324 is set to be equal, so as to ensure the stability of conveying the strip-shaped packaging material and the formed packaging tube.

[0059] Example 5: A method for aerating and packaging bread, using a bread processing and packaging device as described in any one of Examples 1 to 4, comprising the following steps:

[0060] The whole roll of packaging material is placed into the packaging input mechanism 2, and then after the whole roll of packaging material is unwound, the strip of packaging material is guided and sequentially passes through the winding cone 31, the rolling forming unit 32 and the packaging heat sealing mechanism 6;

[0061] The strip-shaped packaging material is wound into a cylindrical shape under the guidance of the outer wall of the winding cone 31, and then undergoes hot pressing and lamination in the rolling forming unit 32 to form a packaging cylinder.

[0062] The bread to be packaged is transported by the separation and input mechanism 4 and transported one by one to the guide conveyor mechanism 5. The guide conveyor mechanism 5 guides the bread to be packaged one at a time into the packaging tube, and at the same time injects gas into the packaging tube through the gas nozzle 51;

[0063] The packaging heat sealing mechanism 6 heat-presses and seals the bottom end of a packaging tube containing a piece of bread to be packaged, and heat-presses and seals the top end of the upper packaging tube, and simultaneously cuts and separates the two packaging tubes;

[0064] After both ends are sealed, a section of the packaging tube containing a loaf of bread falls into the guiding and outputting mechanism 7 and is output.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A packaging device for bread processing, comprising a packaging support frame (1), wherein an input end of the packaging support frame (1) is provided with a bread input layer (11) and a packaging input layer (12), characterized in that: The packaging input layer (12) is provided with a packaging input mechanism (2) and a packaging forming mechanism (3), the bread input layer (11) is provided with a separation input mechanism (4), and the packaging support frame (1) is further provided with a guide conveying mechanism (5), a packaging heat sealing mechanism (6), and a guide output mechanism (7); The packaging forming mechanism (3) includes a winding cone (31) and a rolling forming unit (32); the movable end of the guiding and conveying mechanism (5) can be moved in and out from an end of the winding cone (31) away from the rolling forming unit (32); and the movable end of the guiding and conveying mechanism (5) is provided with a gas nozzle (51); The strip-shaped packaging material output from the packaging input mechanism (2) is wound into a cylindrical shape under the guidance of the outer wall of the winding cone (31), and is hot-pressed and laminated by the rolling forming unit (32) to form a packaging cylinder; The separation input mechanism (4) is capable of inputting the bread to be packaged onto the top of the guide conveyor mechanism (5) at a fixed frequency, and the movable end of the guide conveyor mechanism (5) is extended and retracted at the same frequency; When the movable end of the guiding conveying mechanism (5) moves into the interior of the winding cone (31), it can guide the bread to be packaged to fall into the interior of the packaging tube, and the gas nozzle (51) can simultaneously inject gas into the interior of the packaging tube.

2. The bread processing and packaging device according to claim 1, characterized in that: The packaging heat-sealing mechanism (6) includes a fixed heat-sealing splint (61), a movable heat-sealing splint (62) and a sawtooth cutter (63); the guiding and outputting mechanism (7) includes a deflecting guide plate (71) and an output conveyor belt (72); The movable heat-sealing splint (62) is capable of moving toward the fixed heat-sealing splint (61), and after the movable heat-sealing splint (62) and the fixed heat-sealing splint (61) are closed, they can clamp and heat-press seal the bottom end of the packaging tube; After the bottom end of the packaging tube is heat-pressed and sealed, the serrated cutter (63) can extend from the inside of the movable heat-sealing clamp (62) into the inside of the fixed heat-sealing clamp (61) to cut and separate the front section of the packaging tube from the back section of the packaging tube; The two ends of the deflection guide plate (71) are respectively located below the fixed heat-sealing clamp (61) and above one end of the output conveyor belt (72). The deflection guide plate (71) can guide each section of the packaging tube to slide above the output conveyor belt (72) after being cut.

3. The bread processing and packaging device according to claim 2, characterized in that: The packaging heat sealing mechanism (6) further comprises a fixed heat sealing frame (64), the movable heat sealing clamp (62) being slidably connected to the fixed heat sealing frame (64), and a heat sealing drive cylinder (65) and a cutting drive cylinder (66) being provided inside the fixed heat sealing frame (64); The movable end of the heat sealing drive cylinder (65) is fixed to the movable heat sealing splint (62), and the cutting drive cylinder (66) is fixed to the serrated cutter (63). After the movable heat sealing splint (62) and the fixed heat sealing splint (61) are fitted together under the drive of the heat sealing drive cylinder (65), the cutting drive cylinder (66) can drive the serrated cutter (63) to move from the inside of the movable heat sealing splint (62) to the inside of the fixed heat sealing splint (61).

4. The bread processing and packaging device according to claim 1, characterized in that: The separation input mechanism (4) includes an input guide plate (41), a separation guide groove (42) is provided in the center of the input guide plate (41), a circulating conveying chain (43) is provided below the input guide plate (41), and a plurality of separation guide rods (44) are fixed to the circulating conveying chain (43) at equal intervals, and the separation guide rods (44) can move inside the separation guide groove (42) along with the circulating conveying chain (43); A plurality of tensioning sprockets (45) are provided inside the circulating conveying chain (43), and a sprocket driving motor (46) is provided on one side of one of the tensioning sprockets (45). The sprocket driving motor (46) can output power to drive the circulating conveying chain (43) to move in a circular motion.

5. The bread processing and packaging device according to claim 4, characterized in that: The guide conveying mechanism (5) further comprises a guide conveying frame (52) and a guide conveying plate (53), wherein the guide conveying plate (53) is slidably connected to the guide conveying frame (52), and a transmission wheel (54) is provided at one end of the guide conveying frame (52) close to the separation input mechanism (4), and one end of the transmission wheel (54) is connected to the guide conveying plate (53) via a transmission connecting rod (55); The transmission wheel (54) is also connected to the sprocket drive motor (46) by power, and the sprocket drive motor (46) is also capable of driving the transmission wheel (54) to rotate; A guide sliding track (521) is provided inside the guide conveying frame (52), and both ends of the guide conveying plate (53) are embedded in the guide sliding track (521); when the transmission connecting rod (55) rotates with the transmission wheel (54), the guide conveying plate (53) can be driven to move back and forth inside the guide sliding track (521).

6. The bread processing and packaging device according to claim 5, characterized in that: The guide sliding track (521) is arranged at an end close to the separation input mechanism (4) and tilted downward toward an end close to the winding cone (31); an extension guide plate (56) is provided at an end of the guide conveying plate (53) away from the separation input mechanism (4); and the gas nozzle (51) is arranged below the extension guide plate (56); During the reciprocating movement of the extension guide plate (56) along with the guide conveying plate (53), the extension guide plate (56) can be cyclically moved in and out from one end of the winding cone (31) away from the rolling forming unit (32), and when the extension guide plate (56) is located inside the winding cone (31), the gas nozzle (51) can spray gas.

7. The bread processing and packaging device according to claim 1, characterized in that: The packaging input mechanism (2) comprises a packaging input frame (21), wherein an unwinding installation roller (22), a directional guide roller (23), a tensioning guide roller (24) and a friction input roller (25) are provided inside the packaging input frame (21); An input tensioning frame (26) is extended from one side of the packaging input frame (21), and the tensioning guide roller (24) can slide inside the input tensioning frame (26) to adjust the distance between the input tensioning frame (26) and the friction input roller (25); An input drive motor (27) is provided at one end of the friction input roller (25), and the input drive motor (27) can drive the friction input roller (25) to rotate and adjust the output speed of the strip-shaped packaging material output from the outside of the friction input roller (25).

8. The bread processing and packaging device according to claim 7, characterized in that: A plurality of winding and pressing rollers (33) are provided on the outside of the winding cone (31), and a superimposed pressing pair of rollers (34) is further provided on one end of the winding cone (31) close to the rolling forming unit (32); The winding pressing roller (33) and the outer wall of the winding cone (31) jointly restrict the winding shape of the strip-shaped packaging material passing therethrough; Both sides of the strip-shaped packaging material pass through the overlapping and pressing rollers (34), and the two sides of the strip-shaped packaging material are conveyed to the rolling forming unit (32) in a bonded state.

9. The bread processing and packaging device according to claim 8, characterized in that: The rolling forming unit (32) includes a rolling forming splint (321), a hot pressing forming groove (322) is provided inside the rolling forming splint (321), and a plurality of hot pressing rollers (323) are provided inside the hot pressing forming groove (322), so that both sides of the strip packaging material input in a bonded state can be hot pressed and laminated under the heat output by the hot pressing rollers (323); A friction output roller (324) is further provided at the bottom end of the rolling forming clamping plate (321), and the friction input roller (25) and the friction output roller (324) convey the packaging material at the same linear speed.

10. A method for packaging bread with air, characterized in that: A bread processing and packaging device according to any one of claims 1 to 9 is used, comprising the following steps: Placing a whole roll of packaging material into the packaging input mechanism (2), then unwinding the whole roll of packaging material, guiding the strip of packaging material and passing it through the winding cone (31), the rolling forming unit (32) and the packaging heat sealing mechanism (6) in sequence; The strip-shaped packaging material is wound into a cylindrical shape under the guidance of the outer wall of the winding cone (31), and is then hot-pressed and laminated by the rolling forming unit (32) to form a packaging cylinder; The bread to be packaged is transported by the separation input mechanism (4) and transported one by one to the guide conveying mechanism (5). The guide conveying mechanism (5) guides one bread to be packaged into the packaging tube at a time and simultaneously injects gas into the packaging tube through the gas nozzle (51); The packaging heat sealing mechanism (6) heat-presses and seals the bottom end of a packaging tube containing a piece of bread to be packaged, and heat-presses and seals the top end of the upper packaging tube, and simultaneously cuts and separates the two packaging tubes; After both ends are sealed, a section of the packaging tube containing a piece of bread falls into the guide output mechanism (7) for output.

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