Long fungus bag conveying, heat sealing and cutting mechanism

Abstract

The utility model relates to the field of edible mushroom packaging machinery, in particular to a long mushroom bag conveying, heat sealing and cutting mechanism which comprises a rolling bag, a free unwinding mechanism, a bag conveying mechanism, a bag pulling mechanism, a heat sealing mechanism and a bag cutting mechanism. The free unwinding mechanism comprises an unwinding bearing seat, a bag rolling supporting rear shaft, an unwinding rear baffle, an unwinding front baffle, an unwinding reversing roller, an unwinding reversing swing plate, a brake fixing wheel and a swing arm, and the bag feeding mechanism comprises a bag feeding air cylinder, a front bag pressing air cylinder, a bag feeding pressing plate, a bag feeding guide rail and a bag feeding reversing roller. According to the whole mechanism, the full-automatic process from unwinding, bag feeding, bag pulling, heat sealing to cutting is achieved, the production efficiency is greatly improved, the labor cost is reduced, through the design of the free unwinding mechanism, automatic unwinding and stopping of the rolled bags are achieved, and the stability of the unwinding process is guaranteed. And meanwhile, the bag feeding mechanism and the bag pulling mechanism are accurately controlled, so that the stability of the bags in the conveying and pulling processes is ensured, and the problem that the bags deviate or fall off is solved.

Description

Technical Field

[0001] The utility model relates to the field of edible fungus packaging machinery, in particular to a long fungus bag feeding and heat-sealing cutting mechanism. Background Art

[0002] In the edible fungus industry, especially in the production process of shiitake mushroom sticks, the packaging of long mushroom bags is a key link. Traditional long mushroom bag delivery mechanisms mostly use a design of two rubber rollers close together, and the bags are delivered by motor drive. Although this design can meet the basic bag delivery needs to a certain extent, it exposes many problems in actual application.

[0003] Disadvantages of the prior art

[0004] Inaccurate bag delivery: Due to the use of rubber rollers for conveying, the bags are easily affected by friction during the conveying process, resulting in inaccurate bag delivery length, affecting the accuracy of subsequent packaging processes.

[0005] Bag damage: The water-retaining film is thin and fragile, and is easily damaged by friction during transportation, causing the bag to lose its water-retaining function, seriously affecting the quality of the mushroom sticks.

[0006] Bag deviation during delivery: Due to the unevenness and wrinkles on the bag surface, as well as the uneven friction exerted by the rubber roller on the bag, the bag may easily deviate during transportation, affecting the stability of the production line.

[0007] Poor equipment stability: The frequent occurrence of the above problems will have a serious impact on the stability of the equipment, resulting in frequent shutdown of the production line for maintenance and reduced production efficiency.

[0008] Damage to the quality of mushroom bags: Problems such as inaccurate bag delivery and bag damage will directly lead to a decrease in the quality of the mushroom bags after bagging, affecting the yield and quality of edible fungi.

[0009] Customer loss risk: Equipment instability and deterioration in the quality of mushroom bags will bring unpredictable loss risks to customers, damaging the company's reputation and economic benefits. Utility Model Content

[0010] 1. Technical issues to be resolved

[0011] Aiming at the deficiencies of the prior art, the utility model provides a heat-sealing and cutting mechanism for feeding a long fungus bag.

[0012] (II) Technical solution

[0013] To achieve the above purpose, the utility model provides the following technical solutions: a long fungus bag feeding and heat-sealing and cutting mechanism of the utility model comprises a bag rolling mechanism, a free unwinding mechanism, a bag feeding mechanism, a bag pulling mechanism, a heat-sealing mechanism and a bag cutting mechanism;

[0014] Free unwinding mechanism: including unwinding bearing seat, bag roll supporting rear shaft, unwinding rear baffle, unwinding front baffle, unwinding reversing roller, unwinding reversing swing plate, brake fixed wheel and swing arm, this mechanism realizes automatic unwinding and stopping of the whole roll of mushroom bag;

[0015] Bag delivery mechanism: including bag delivery cylinder, front bag pressing cylinder, bag delivery pressing plate, bag delivery guide rail and bag delivery reversing roller, which realizes automatic delivery of fungus bags;

[0016] Bag pulling mechanism: including bag pulling stepping motor, bag pulling synchronous belt, bag pulling synchronous wheel, bag pulling mobile frame, bag pulling bag clamping cylinder and bag pulling bag clamping block, the mechanism realizes automatic pulling and clamping of fungus bags;

[0017] Heat sealing mechanism: including heat sealing cylinder, heat sealing insulation board, heat sealing knife and heat sealing base, which realizes the heat sealing function of the mushroom bag;

[0018] Bag cutting mechanism: including bag cutting and pressing cylinder, bag cutting and pressing guide shaft, bag cutting and pressing guide sleeve, bag cutting and pressing lifting plate, bag cutting upper pressure block, bag cutting cylinder and cutter mounting block. This mechanism realizes the automatic cutting function of fungus bags.

[0019] Preferably, the roll bag support rear axle is installed on the unwinding bearing seat, the roll bag, unwinding rear baffle and unwinding front baffle are sleeved on the roll bag support rear axle, the unwinding rear baffle is in contact with the rear end of the roll bag support rear axle, the unwinding front baffle is connected to the roll bag support rear axle through a baffle locking nut, the swing arm is rotatably installed on the unwinding bearing seat, the brake fixed wheel is installed on the swing arm, the unwinding reversing swing plate is hinged on the swing arm, and the unwinding reversing roller is installed on the unwinding reversing swing plate.

[0020] Further preferably, the bag feeding mechanism also includes a bag feeding main frame, a cylinder frame and a bagless sensing switch, the bag feeding reversing rollers are arranged at the upper and lower ends of the input end of the bag feeding main frame, the bagless sensing switch is arranged at the lower end of the input end of the bag feeding main frame, and is located above the bag feeding reversing roller at the lower end of the bag feeding main frame, the bag feeding guide rail is arranged at the other end of the bag feeding main frame, the cylinder frame is slidably mounted on the bag feeding guide rail, the bag feeding cylinder is mounted on the bag feeding main frame, and the output end of the bag feeding cylinder is adapted to the cylinder frame, the front bag pressing cylinder and the bag feeding pressure plate are both mounted on the cylinder frame, the output end of the front bag pressing cylinder is provided with a bag pressing soft block, and the bag feeding pressure plate includes a bag feeding bottom plate and a bag feeding upper pressure plate.

[0021] Again preferably, a bag pulling guide rail is installed on the bag pulling mobile frame, and the bag pulling mobile frame is slidably installed on the bag pulling guide rail and fixedly connected to the bag pulling synchronous belt, and bag pulling fixed bases are arranged at both ends of the bag pulling guide rail, the bag pulling stepper motor is installed on the bag pulling fixed base at one end of the bag pulling guide rail, and the output end of the bag pulling stepper motor passes through the bag pulling fixed base at this end, the bag pulling synchronous wheel is installed on the bag pulling fixed base at the other end of the bag pulling guide rail and the output end of the bag pulling stepper motor, the bag pulling synchronous belt is sleeved on the bag pulling synchronous wheel, the bag pulling bag clamping cylinder is installed at the end of the bag pulling mobile frame, and the bag pulling bag clamping block is arranged on the bag pulling bag clamping cylinder.

[0022] Preferably, the heat sealing base is installed at the output end of the bag feeding main frame, the heat sealing mechanism also includes a mounting frame, the heat sealing cylinder is fixedly installed on the mounting frame, the heat sealing knife is installed at the bottom of the heat sealing insulation board, the heat sealing insulation board is installed at the output end of the heat sealing cylinder, and the heat sealing base and the heat sealing knife are provided with heating tubes.

[0023] Further preferably, the bag cutting cylinder is installed at the output end of the bag feeding main frame and is located below the heat sealing base, the heat sealing base is provided with a knife groove, the cutter mounting block is installed at the output end of the bag cutting cylinder, the cutter mounting block is provided with a cutter, and the cutter is matched with the knife groove, the bag cutting and pressing guide shaft is arranged at both ends of the bag cutting and pressing lifting plate, a base is provided at the bottom of the bag cutting and pressing cylinder, the base is matched with the bag cutting and pressing guide shaft through a bag cutting and pressing guide sleeve, the bag cutting upper pressure block is connected with the bag cutting and pressing guide shaft through a sleeve, and the sleeve is matched with the bag cutting and pressing guide shaft, and the output end of the bag cutting and pressing cylinder is connected to the bag cutting and pressing lifting plate.

[0024] (III) Beneficial effects

[0025] Compared with the prior art, the utility model provides a long fungus bag feeding and heat sealing and cutting mechanism, which has the following beneficial effects:

[0026] High degree of automation: The entire mechanism realizes a fully automated process from unwinding, bag feeding, bag pulling, heat sealing to cutting, which greatly improves production efficiency and reduces labor costs.

[0027] Good stability: The free unwinding mechanism design realizes the automatic unwinding and stopping of the roll bag, ensuring the stability of the unwinding process. At the same time, the precise control of the bag feeding mechanism and the bag pulling mechanism ensures the stability of the bag during the conveying and pulling process, avoiding the problem of the bag running off or falling off.

[0028] Strong adaptability: The mechanism can adapt to bags of different lengths and materials. By adjusting the unwinding speed and bag feeding length, it can meet the needs of different customers. In addition, the design of the heat sealing mechanism and bag cutting mechanism also enables the mechanism to adapt to the production of bags of different specifications and requirements.

[0029] Good heat sealing effect: Through the design of heat sealing mechanism and heating tube, the bag can be quickly and evenly heat-sealed, ensuring the sealing of the bag and preventing leakage during transportation and storage.

[0030] Accurate cutting: Through the design of the bag cutting mechanism and the cutter, the bag can be accurately cut, which improves the qualified rate of the product. At the same time, the cooperation of the bag cutting and pressing cylinder and the bag cutting and pressing lifting plate ensures the stability of the bag during the cutting process, avoiding the problem of bag damage or deformation.

[0031] Easy to operate: The operation of the entire mechanism is simple and easy to understand. Workers only need to make simple adjustments and monitoring to complete the entire bag making process, which reduces the difficulty of operation and skill requirements.

[0032] To sum up, the long mushroom bag feeding and heat sealing and cutting mechanism has the beneficial effects of high degree of automation, good stability, strong adaptability, good heat sealing effect, accurate cutting and easy operation. It can greatly improve the production efficiency and product quality of the bag, reduce production cost and labor cost, and is an important equipment in the field of long mushroom bag production. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the overall front structure of the utility model;

[0035] Figure 3 This is a schematic diagram of the assembly structure of the free unwinding mechanism and the bag feeding mechanism of the utility model;

[0036] Figure 4 This is a schematic diagram of the bag pulling mechanism structure of the utility model;

[0037] Figure 5 This is a schematic diagram of the free unwinding mechanism structure of the utility model;

[0038] Figure 6 This is a side view structural diagram of the free unwinding mechanism of the utility model;

[0039] Figure 7 This is a schematic diagram of the roll bag installation structure of the utility model;

[0040] In the figure: 1. Unwinding bearing seat; 2. Unwinding rear baffle; 3. Bag roll support rear axle; 4. Unwinding reversing roller; 5. Unwinding reversing swing plate; 6. Brake fixed wheel; 7. Swing arm; 8. Unwinding front baffle; 9. Bag roll; 10. Baffle locking nut; 11. Bag delivery main frame; 12. Bag delivery reversing roller; 13. Bagless induction switch; 14. Cylinder frame; 15. Front bag pressing cylinder; 16. Bag delivery bottom plate; 17. Bag delivery upper pressure plate; 18. Bag pulling guide rail; 19. Bag pulling stepping motor; 20. Bag pulling fixed base; 21. 1. Bag pulling synchronous belt; 22. Bag pulling moving frame; 23. Bag pulling and bag clamping cylinder; 24. Bag pulling and bag clamping block; 25. Heat sealing cylinder; 26. Heat sealing insulation board; 27. Heat sealing base; 28. Heat sealing knife; 29. ​​Bag cutting cylinder; 30. Cutter mounting block; 31. Cutter; 32. Bag cutting upper pressure block; 33. Bag cutting and pressing cylinder; 34. Bag cutting and pressing guide shaft; 35. Bag cutting and pressing guide sleeve; 36. Bag cutting and pressing lifting plate; 37. Base; 38. Sleeve; 39. Bag pulling synchronous wheel; 40. Bag delivering cylinder; 41. Bag delivering guide rail. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] See also Figure 1-3 The utility model provides a long fungus bag feeding, heat sealing and cutting mechanism, comprising a bag roll 9, a free unwinding mechanism, a bag feeding mechanism, a bag pulling mechanism, a heat sealing mechanism and a bag cutting mechanism;

[0043] Free unwinding mechanism: including unwinding bearing seat 1, bag roll supporting rear shaft 3, unwinding rear baffle 2, unwinding front baffle 8, unwinding reversing roller 4, unwinding reversing swing plate 5, brake fixed wheel 6 and swing arm 7, the mechanism realizes automatic unwinding and stopping of the whole roll of fungus bag;

[0044] Bag delivery mechanism: including bag delivery cylinder 40, front bag pressing cylinder 15, bag delivery pressing plate, bag delivery guide rail 41 and bag delivery reversing roller 12, which realizes automatic delivery of fungus bags;

[0045] Bag pulling mechanism: including bag pulling stepping motor 19, bag pulling synchronous belt 21, bag pulling synchronous wheel 39, bag pulling moving frame 22, bag pulling bag clamping cylinder 23 and bag pulling bag clamping block 24, the mechanism realizes automatic pulling and clamping of fungus bags;

[0046] Heat sealing mechanism: including heat sealing cylinder 25, heat sealing heat insulation plate 26, heat sealing knife 28 and heat sealing base 27, which realizes the heat sealing function of the mushroom bag;

[0047] The bag cutting mechanism includes a bag cutting and pressing cylinder 33, a bag cutting and pressing guide shaft 34, a bag cutting and pressing guide sleeve 35, a bag cutting and pressing lifting plate 36, a bag cutting upper pressing block 32, a bag cutting cylinder 29 and a cutter mounting block 30. The mechanism realizes the automatic cutting function of the fungus bag.

[0048] The preferred solution of the heat-sealing and cutting mechanism for the long fungus bag is as follows:

[0049] Roll bag support and unwinding mechanism:

[0050] The roll bag supporting rear shaft 3 supports the roll bag 9 and ensures the stability of the roll bag 9 during the unwinding process.

[0051] The unwinding rear baffle 2 and the unwinding front baffle 8 are used to fix the two sides of the roll bag 9 to prevent the roll bag 9 from shifting during the unwinding process.

[0052] Swing arm 7 and brake fixed wheel 6: Through the rotation of the swing arm 7 and the cooperation of the brake fixed wheel 6, the tension control of the roll bag 9 and the adjustment of the unwinding speed are achieved.

[0053] The unwinding reversing swing plate 5 and the unwinding reversing roller 4 are used to change the conveying direction of the roll bag 9 to adapt to different process requirements.

[0054] Bag feeding mechanism:

[0055] Bag conveying reversing roller 12: used to change the conveying direction of the bag.

[0056] Bagless sensor switch 13: detects whether a bag exists to ensure the accuracy of bag delivery.

[0057] Bag delivery guide rail 41 and cylinder rack 14: The cylinder rack 14 is driven by the cylinder to slide on the bag delivery guide rail 41 to achieve accurate delivery of the bags.

[0058] The front bag pressing cylinder 15 and the bag conveying pressing plate are used to fix and press the bags to prevent the bags from deviating or falling off during the conveying process.

[0059] Bag pulling mechanism:

[0060] Bag pulling guide rail 18 and bag pulling stepping motor 19: The bag pulling stepping motor 19 drives the bag pulling moving frame 22 to slide on the bag pulling guide rail 18 to achieve bag pulling and positioning.

[0061] The bag pulling and clamping cylinder 23 and the bag pulling and clamping block 24 are used to clamp the bag to ensure the stability of the bag during the pulling process.

[0062] Heat sealing and cutting mechanism:

[0063] Heat-sealing base 27 and heat-sealing mechanism: The heat-sealing base 27 and the heat-sealing knife 28 are heated by a heating tube to achieve the heat-sealing function of the bag.

[0064] Bag cutting cylinder 29 and cutter 31: The bag cutting cylinder 29 is driven to make the cutter 31 cut the heat-sealed bag to complete the bag making.

[0065] The long fungus bag feeding, heat sealing and cutting mechanism is mainly divided into five mechanisms: free unwinding mechanism, bag feeding mechanism, bag pulling mechanism, heat sealing mechanism and bag cutting mechanism;

[0066] Action: First, put the whole roll bag 9 into the unwinding mechanism (on the rear shaft 3 of the roll bag support), cover the unwinding front baffle 8 to block the mushroom bag, and lock the baffle locking nut 10. After the worker puts the mushroom bag into the bag according to the path shown in the figure. In the initial state, the front bag pressing cylinder 15 extends, driving the bag pressing soft block to press the bag tightly on the bag feeding bottom plate 16.

[0067] Bag feeding process: After starting, the bag feeding cylinder 40 extends out, and under the guidance of the bag feeding guide rail 41, it pushes the front bag pressing cylinder 15 and the bag feeding bottom plate 16 to move forward. At this time, the bag mouth is also pressed by the bag feeding upper pressing plate 17 to pass through the heat sealing mechanism and reach the designated bag clamping position. In this bag feeding (bag mouth movement) process, because the unwinding reversing roller 4 is pulled by the bag, it drives the unwinding reversing swing plate 5 to swing a certain angle, and the upper end of the swing plate hits the brake fixed wheel 6, and then drives the swing arm 7 to swing upward as a whole. Because when the brake fixed wheel 6 is separated from the unwinding rear baffle 2, the rear shaft 3 of the bag roll support immediately rotates without brake resistance, driving the entire roll of mushroom bags to rotate for bag feeding. When the bag feeding stops and the unwinding reversing roller 4 is not pulled by the bag, the whole roll of mushroom bag continues to rotate and unwind the bag under the action of inertia and the gravity of the swing arm 7 until the swing arm 7 drops and the brake fixed wheel 6 hits the unwinding rear baffle 2 again. Due to the braking effect of the brake fixed wheel 6 on the unwinding rear baffle 2, the unwinding rear baffle 2 will stop immediately. However, due to the inertia of the whole roll of mushroom bag, it will continue to rotate a short distance behind the bag support rear shaft 3. Here, the unwinding reversing swing plate 5 continues to swing a short distance before stopping. This ensures that the bag is in a taut state throughout the process, which is helpful for the next action.

[0068] Bag pulling process: During the bag feeding process, the rear bag pulling stepper motor 19 also operates at the same time, and drives the bag pulling mobile frame 22 to move forward under the transmission of the bag pulling synchronous belt 21 and the bag pulling synchronous wheel 39. Due to the guidance of the bag pulling guide rail 18, the bag pulling bag clamping cylinder 23 fixed on the bag pulling mobile frame 22 also moves forward to the bag clamping position (bag opening position), and the bag pulling bag clamping block 24 is fixed on the bag pulling bag clamping cylinder 23 and is in an open state. When the bag opening passes through the heat sealing mechanism and reaches the designated bag clamping position and the bag opening enters the upper and lower bag pulling bag clamping blocks 24, the bag pulling bag clamping cylinder 23 operates to drive the two bag pulling bag clamping blocks 24 to clamp the bag opening, and the front bag pressing cylinder 15 contracts to lift the bag pressing soft block, and then the bag pulling stepper motor 19 reverses, driving the bag pulling bag clamping block 24 to pull back a certain distance. At this time, after the bag opening is also pulled back a certain distance, the bag pulling bag clamping block 24 stops moving.

[0069] This process is the bag pulling process. During the bag pulling process, the action of the free unwinding mechanism is the same as that of the bag feeding process. The fungus bags are in a tightened state and automatically start and stop unwinding.

[0070] Heat sealing process and bag cutting process:

[0071] When the bag pulling process is completed, that is, the bag mouth is pulled back a certain distance, the bag has reached the required set length. The heat sealing cylinder 25 extends, driving the heat sealing insulation board 26 and the heat sealing knife 28 to press the bag downward. Since the heat sealing knife 28 and the heat sealing base 27 are both equipped with heating pipes, the bag is between the two and is subjected to a certain pressure and temperature. After a certain period of time, the heat sealing cylinder 25 retracts and the heat sealing knife 28 returns to its original position. At this time, the bag has been heated and sealed.

[0072] During the heat sealing process, the bag cutting and pressing cylinder 33 contracts at the same time, and under the guidance of the bag cutting and pressing guide shaft 34 and the guide sleeve, it drives the bag cutting upper pressing block 32 to move downward, and firmly presses the bag on the heat sealing base 27. Since the heat sealing base 27 and the bag cutting upper pressing block 32 are both provided with knife grooves, the knife tip can extend into the knife groove of the bag cutting upper pressing block 32. At this time, the bag cutting cylinder 29 is activated, and the mounting block 30 and the cutter 31 are driven to move back and forth quickly, and the fungus bag is cut. When the suction box outside the mechanism generates negative pressure, it sucks the cut bag mouth. The bag cutting and pressing cylinder 33 extends back to its original position, driving the bag cutting upper pressing block 32 to lift up, and at the same time, the bag pulling and clamping block 24 opens to release the bag tail. The suction box delivers a complete fungus bag to the designated workstation, completing a bag making action.

[0073] Since the power of pulling the bag is controlled by a stepper motor, the pulling distance can be flexibly controlled to achieve the production of fungus bags of different lengths.

[0074] For example, if the customer requires the length of the fungus bag to be 580 mm, and the stroke of the front bag feeding cylinder 40 is fixed to 150 mm, then the distance of the <3-6 bag pulling and clamping block 24> pulling the bag backward is set to 430 mm.

[0075] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat-sealing and cutting mechanism for feeding a long fungus bag, characterized in that: It comprises a bag roll (9), a free roll unwinding mechanism, a bag feeding mechanism, a bag pulling mechanism, a heat sealing mechanism and a bag cutting mechanism; The free unwinding mechanism comprises an unwinding bearing seat (1), a bag roll supporting rear shaft (3), an unwinding rear baffle (2), an unwinding front baffle (8), an unwinding reversing roller (4), an unwinding reversing swing plate (5), a brake fixed wheel (6) and a swing arm (7), and the mechanism realizes automatic unwinding and stopping of a whole roll of mushroom bags; The bag conveying mechanism comprises a bag conveying cylinder (40), a front bag pressing cylinder (15), a bag conveying pressing plate, a bag conveying guide rail (41) and a bag conveying reversing roller (12), and the mechanism realizes automatic conveyance of the fungus bag; The bag pulling mechanism comprises a bag pulling stepping motor (19), a bag pulling synchronous belt (21), a bag pulling synchronous wheel (39), a bag pulling moving frame (22), a bag pulling and clamping cylinder (23) and a bag pulling and clamping block (24), and the mechanism realizes automatic pulling and clamping of the fungus bag; Heat sealing mechanism: comprising a heat sealing cylinder (25), a heat sealing heat insulation plate (26), a heat sealing knife (28) and a heat sealing base (27), the mechanism realizes the heat sealing function of the fungus bag; The bag cutting mechanism comprises a bag cutting and pressing cylinder (33), a bag cutting and pressing guide shaft (34), a bag cutting and pressing guide sleeve (35), a bag cutting and pressing lifting plate (36), a bag cutting upper pressing block (32), a bag cutting cylinder (29) and a cutter mounting block (30), and the mechanism realizes the automatic cutting function of the fungus bag.

2. A heat-sealing and cutting mechanism for feeding and cutting long fungus bags according to claim 1, characterized in that: The roll bag support rear shaft (3) is installed on the unwinding bearing seat (1); the roll bag (9), the unwinding rear baffle (2) and the unwinding front baffle (8) are sleeved on the roll bag support rear shaft (3); the unwinding rear baffle (2) is in contact with the rear end of the roll bag support rear shaft (3); the unwinding front baffle (8) is connected to the roll bag support rear shaft (3) through a baffle locking nut (10); the swing arm (7) is rotatably installed on the unwinding bearing seat (1); the brake fixed wheel (6) is installed on the swing arm (7); the unwinding reversing swing plate (5) is hinged on the swing arm (7); and the unwinding reversing roller (4) is installed on the unwinding reversing swing plate (5).

3. A heat-sealing and cutting mechanism for feeding and cutting long fungus bags according to claim 2, characterized in that: The bag feeding mechanism further comprises a bag feeding main frame (11), a cylinder frame (14) and a bagless sensing switch (13); the bag feeding reversing roller (12) is arranged at the upper and lower ends of the input end of the bag feeding main frame (11); the bagless sensing switch (13) is arranged at the lower end of the input end of the bag feeding main frame (11) and is located above the bag feeding reversing roller (12) at the lower end of the bag feeding main frame (11); the bag feeding guide rail (41) is arranged at the other end of the bag feeding main frame (11); The cylinder frame (14) is slidably mounted on the bag delivery guide rail (41), the bag delivery cylinder (40) is mounted on the bag delivery main frame (11), and the output end of the bag delivery cylinder (40) is adapted to the cylinder frame (14), the front bag pressing cylinder (15) and the bag delivery pressure plate are both mounted on the cylinder frame (14), the output end of the front bag pressing cylinder (15) is provided with a bag pressing soft block, and the bag delivery pressure plate comprises a bag delivery bottom plate (16) and a bag delivery upper pressure plate (17).

4. A heat-sealing and cutting mechanism for feeding and cutting long fungus bags according to claim 3, characterized in that: The bag pulling guide rail (18) is installed on the bag pulling moving frame (22), and the bag pulling moving frame (22) is slidably installed on the bag pulling guide rail (18) and is fixedly connected to the bag pulling synchronous belt (21). The two ends of the bag pulling guide rail (18) are provided with a bag pulling fixed base (20). The bag pulling stepping motor (19) is installed on the bag pulling fixed base (20) at one end of the bag pulling guide rail (18). The output end of the bag pulling stepping motor (19) passes through The bag pulling fixed base (20) at this end, the bag pulling synchronous wheel (39) is installed on the bag pulling fixed base (20) at the other end of the bag pulling guide rail (18), and on the output end of the bag pulling stepping motor (19), the bag pulling synchronous belt (21) is sleeved on the bag pulling synchronous wheel (39), the bag pulling bag clamping cylinder (23) is installed at the end of the bag pulling moving frame (22), and the bag pulling bag clamping block (24) is configured on the bag pulling bag clamping cylinder (23).

5. A heat-sealing and cutting mechanism for feeding and cutting long fungus bags according to claim 4, characterized in that: The heat sealing base (27) is installed at the output end of the bag feeding main frame (11), and the heat sealing mechanism also includes a mounting frame, the heat sealing cylinder (25) is fixedly installed on the mounting frame, the heat sealing knife (28) is installed at the bottom of the heat sealing insulation board (26), and the heat sealing insulation board (26) is installed at the output end of the heat sealing cylinder (25). The heat sealing base (27) and the heat sealing knife (28) are provided with heating tubes.

6. A heat-sealing and cutting mechanism for feeding and cutting long fungus bags according to claim 5, characterized in that: The bag cutting cylinder (29) is installed at the output end of the bag feeding main frame (11) and is located below the heat sealing base (27). The heat sealing base (27) and the bag cutting upper pressing block (32) are both provided with knife grooves. The cutter mounting block (30) is installed at the output end of the bag cutting cylinder (29). The cutter mounting block (30) is provided with a cutter (31), and the cutter (31) is adapted to the knife groove. The bag cutting and pressing guide shaft (34) is arranged at the bag cutting and pressing lifting block (32). At both ends of the descending plate (36), a base (37) is provided at the bottom of the cutting and pressing bag cylinder (33), and the base (37) is adapted to the cutting and pressing bag guide shaft (34) through the cutting and pressing bag guide sleeve (35), and the cutting and pressing bag upper pressing block (32) is connected to the cutting and pressing bag guide shaft (34) through a sleeve (38), and the sleeve (38) is adapted to the cutting and pressing bag guide shaft (34), and the output end of the cutting and pressing bag cylinder (33) is connected to the cutting and pressing bag lifting plate (36).

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