Four-station wrist guard opening and closing mechanism for edible mushroom bags

Abstract

The utility model relates to the field of edible mushroom production equipment, in particular to a four-station wrist guard opening and closing mechanism for an edible mushroom bag. Comprising an opening and closing wrist guard piece, an outer opening and closing synchronous connecting rod assembly, an inner connecting rod driving air cylinder, an outer connecting rod driving air cylinder, a stamping supporting lifting assembly, a wrist guard main supporting plate, a wrist guard main supporting guide rail and a wrist guard main supporting guide sleeve. Wherein the wrist guard main supporting plate serves as a main supporting structure of the whole wrist guard mechanism; grouping and layout of the opening and closing wrist guard parts are elaborately designed, the four sets of opening and closing wrist guard parts A, B, C and D are located at different positions of the wrist guard main supporting plate respectively, multi-station operation is achieved, space is saved, the whole mechanism is highly automatic, and automatic opening and closing of the opening and closing wrist guard parts are achieved through matched use of elements such as an air cylinder, a connecting rod and a spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of edible mushroom production equipment, and specifically to a four-station wrist guard opening and closing mechanism for edible mushroom bags. BACKGROUND

[0002] In the production process of edible mushroom bags, stable opening and closing operations of the bags are crucial to ensure the uniformity and integrity of the contents. Traditional opening and closing methods often rely on manual operations or simple mechanical devices, which have low efficiency, poor stability, and low automation, among other issues. These problems not only increase production costs but also affect the production quality and efficiency of edible mushroom bags.

[0003] With the continuous development of industrial automation technology, higher requirements are placed on edible mushroom bag production equipment, particularly in the opening and closing of the bags, which requires a mechanism that can achieve efficient, stable, and automated operations. SUMMARY

[0004] (I) Technical problems solved

[0005] To address the shortcomings of existing technology, the utility model provides a four-station wrist guard opening and closing mechanism for edible mushroom bags.

[0006] (II) Technical solutions

[0007] To achieve the above-mentioned purposes, the utility model provides the following technical solutions: a four-station wrist guard opening and closing mechanism for edible mushroom bags, comprising an opening and closing wrist guard component, an outer opening and closing synchronization link assembly, an inner opening and closing synchronization link assembly, an inner link drive cylinder, an outer link drive cylinder, a stamping support lifting assembly, a wrist guard main support plate, a wrist guard main support rail, and a wrist guard main support guide sleeve;

[0008] Among them, the wrist guard main support plate serves as the main support structure of the entire wrist guard mechanism;

[0009] The wrist guard main support rail is installed with a wrist guard main support guide sleeve at the bottom of the wrist guard main support plate, and the wrist guard main support plate is connected with the wrist guard support rail through the wrist guard main support guide sleeve;

[0010] The stamping support lifting assembly is installed on the wrist guard main support plate, and the top of the stamping support lifting assembly is provided with a wrist guard support frame;

[0011] The opening and closing wrist guard component includes an inner opening and closing wrist guard and an outer opening and closing wrist guard, and the wrist guard support frame is installed with a slide rail, and the inner opening and closing wrist guard and the outer opening and closing wrist guard are slidably installed on the slide rail through a base, used to hold the mushroom bag in a closed state;

[0012] The outer opening and closing synchronization link assembly is connected with the outer link drive cylinder and the outer opening and closing wrist guard, used to control the swinging of the outer opening and closing wrist guard;

[0013] The inner opening and closing synchronous connecting rod assembly is connected with the inner connecting rod driving cylinder and the inner opening and closing wrist guard, and is used for controlling the swing of the inner opening and closing wrist guard.

[0014] Preferably, the opening and closing wrist guard part is provided with four groups of A, B, C and D, the A group and the D group are respectively located at two ends of the wrist guard main support plate, and the B group and the C group are located at the central position of the wrist guard main support plate.

[0015] Further preferably, the stamping support lifting assembly is provided with at least four groups, the A group and the D group are respectively installed on the stamping support lifting assembly at two ends of the wrist guard main support plate through a separate wrist guard support frame, and the B group and the C group are symmetrically installed on a wrist guard support frame.

[0016] Again preferably, the stamping support lifting assembly comprises a lifting cylinder and a buffer spring, the lifting cylinder is fixedly installed on the wrist guard main support plate, an output end of the lifting cylinder is connected with the wrist guard support frame, and the buffer spring is located at two ends of the cylinder and is welded at two ends of the buffer spring to the wrist guard main support plate and the wrist guard support frame.

[0017] Preferably, the outer opening and closing synchronous connecting rod assembly and the inner opening and closing synchronous connecting rod assembly are the same in structure, and both comprise a support shaft, a hinged frame and a pulling connecting rod, the hinged frame is sleeved on the support shaft and is rotatably installed on the support shaft through a bearing, an adjusting frame is arranged on the hinged frame, output ends of the inner connecting rod driving cylinder and the outer connecting rod driving cylinder are respectively hingedly connected with the adjusting frame on the hinged frame of the outer opening and closing synchronous connecting rod assembly and the inner opening and closing synchronous connecting rod assembly, and three pulling connecting rods are hingedly installed on the top of the hinged frame, shaft rods are arranged on bases of the inner opening and closing wrist guard and the outer opening and closing wrist guard, and end portions of the pulling connecting rods are sleeved on the shaft rods through shaft sleeves.

[0018] Further preferably, the lock mechanism further comprises a lock driving cylinder, a lock connecting rod, a lock synchronous shaft, a connecting plate, a lock plate, a fixed catch and a movable catch, the fixed catch is fixedly installed on the side wall of the inner opening and closing wrist guards of the B group and the C group, and the side wall of the inner opening and closing wrist guards of the B group and the C group is provided with a rotating shaft, the base of the outer opening and closing wrist guards of the B group and the C group is provided with a hinged seat, the positions of the fixed catch, the rotating shaft and the hinged seat on the A group and the D group are opposite to those of the B group and the C group, the lock synchronous shaft penetrates through the hinged seat and is rotationally connected with the hinged seat through a bearing, the side wall of the hinged seat is provided with a cylinder seat, the lock driving cylinder is fixedly installed on the cylinder seat, the lock connecting rod is hingedly installed on the output end of the lock driving cylinder, and the lock connecting rod is sleeved on one end of the lock synchronous shaft, the connecting plate is sleeved on both ends of the lock synchronous shaft, the lock plate is hingedly installed on the end of the connecting plate through a hinged shaft, the movable catch is sleeved on the rotating shaft, and the rotating shaft is provided with a nut to limit the movable catch, the end of the lock plate is hingedly connected with the movable catch through a hinged shaft, and the movable catch is provided with a bayonet to be matched with the fixed catch.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides a four-station wrist opening and closing mechanism for edible mushroom bags, which has the following beneficial effects:

[0021] Improving production efficiency: the mechanism design realizes four-station simultaneous operation, i.e., the A, B, C and D groups of opening and closing wrist pieces can simultaneously hold the mushroom bags and perform stamping work. This parallel processing mode greatly shortens the production cycle and improves the production efficiency of edible mushroom bags.

[0022] Enhancing stability and reliability: the opening and closing wrist pieces are precisely controlled by the inner opening and closing synchronous connecting rod assemblies and the outer opening and closing synchronous connecting rod assemblies, realizing stable opening and closing actions. Meanwhile, the introduction of the lock mechanism further ensures the stability of the opening and closing wrist pieces in the closed state, preventing the mushroom bags from loosening or falling off during stamping, and improving the stability and reliability of the production process.

[0023] Improving the degree of automation: the entire mechanism is highly automated, and through the cooperation of cylinders, connecting rods, springs and other elements, functions such as automatic opening and closing of the opening and closing wrist pieces, automatic adjustment of the stamping support lifting assembly and automatic locking of the lock mechanism are realized. This not only reduces the labor intensity, but also improves the overall automation level of the production line.

[0024] Optimized structure layout: The grouping and layout of the opening and closing wrist guard components are carefully designed, with A, B, C, and D groups of opening and closing wrist guard components located at different positions of the wrist guard main support plate, achieving multi-station operation and saving space. In addition, the stamping support lifting assembly, outer opening and closing synchronous link assembly, and inner opening and closing synchronous link assembly also adopt reasonable structure layout and installation method, ensuring the compactness and efficiency of the entire mechanism.

[0025] Enhanced adaptability: The sliding connection between the wrist guard main support plate and the wrist guard main support rail allows the entire wrist guard mechanism to move smoothly along the rail direction, adapting to different working positions. This design enhances the adaptability and flexibility of the mechanism, making it better suited for different sizes and types of edible mushroom bag production lines.

[0026] Reduced maintenance cost: The design of the mechanism focuses on the durability and ease of maintenance of parts. For example, the cylinders and buffer springs in the stamping support lifting assembly are easy to replace and maintain; the opening and closing wrist guard components and link assemblies are also designed with standardization, facilitating the interchange and repair of parts. These design measures help reduce the maintenance cost of the equipment and prolong its service life.

[0027] In summary, the four-station wrist opening and closing mechanism for edible mushroom bags improves production efficiency and automation, enhances stability and reliability, and reduces maintenance costs through its reasonable structure design and coordinated work between components, providing strong support for the production of edible mushroom bags. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0029] Figure 2 It is a schematic diagram of the side view structure of the present utility model;

[0030] Figure 3 It is a schematic diagram of the front view structure of the present utility model;

[0031] Figure 4 It is a schematic diagram of the overhead structure of the opening and closing wrist guard components of the present utility model;

[0032] Figure 5 It is a schematic diagram of the lock mechanism structure of the present utility model;

[0033] In the figure: 1, open and close wrist piece; 2, outer opening synchronization connecting rod assembly; 3, inner opening synchronization connecting rod assembly; 4, inner connecting rod driving air cylinder; 5, outer connecting rod driving air cylinder; 6, wrist main support plate; 7, wrist main support guide rail; 8, wrist main support guide sleeve; 9, lifting air cylinder; 10, buffer spring; 11, wrist support frame; 12, inner opening and closing wrist; 13, outer opening and closing wrist; 14, base; 15, slide rail; 16, shaft; 17, hinged frame; 18, support shaft; 19, pulling connecting rod; 20, hinged seat; 21, lock catch driving air cylinder; 22, air cylinder seat; 23, lock catch synchronization shaft; 24, lock catch connecting rod; 25, connecting plate; 26, lock catch plate; 27, movable catch pin; 28, fixed catch pin; 29, rotating shaft; 30, bayonet; 31, adjusting frame. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] Please refer to Figures 1-5 The utility model discloses a four station wrist opening and closing mechanism of edible mushroom bag, including open and close wrist piece 1, outer opening synchronization connecting rod assembly 2, inner opening synchronization connecting rod assembly 3, inner connecting rod driving air cylinder 4, outer connecting rod driving air cylinder 5, stamping support lifting assembly, wrist main support plate 6, wrist main support guide rail 7 and wrist main support guide sleeve 8;

[0036] Among them, wrist main support plate 6 is as the main support structure of whole wrist mechanism;

[0037] Wrist main support guide rail 7, the bottom of wrist main support plate 6 is installed with wrist main support guide sleeve 8, and wrist main support plate 6 is slidably connected with wrist support guide rail through wrist main support guide sleeve 8;

[0038] Stamping support lifting assembly is installed on wrist main support plate 6, and the top of stamping support lifting assembly is provided with wrist support frame 11;

[0039] Open and close wrist piece 1 includes inner opening and closing wrist 12 and outer opening and closing wrist 13, the slide rail 15 is installed on wrist support frame 11, and inner opening and closing wrist 12 and outer opening and closing wrist 13 are slidably installed on slide rail 15 through base 14, to hold the mushroom bag in the closed state;

[0040] Outer opening synchronization connecting rod assembly 2 is connected with outer connecting rod driving air cylinder 5 and outer opening and closing wrist 13, and is used to control the swing of outer opening and closing wrist 13.

[0041] The inner opening and closing synchronous connecting rod assembly 3 is connected with the inner connecting rod driving cylinder 4 and the inner opening and closing wrist guard 12, and is used for controlling the swing of the inner opening and closing wrist guard 12.

[0042] The preferred scheme of the four-station opening and closing mechanism for the edible mushroom bag is as follows:

[0043] Grouping and layout of the opening and closing wrist guard

[0044] Grouping and position: The opening and closing wrist guard 1 is divided into four groups of A, B, C and D, wherein the groups A and D are respectively located at two ends of the wrist guard main support plate 6, and the groups B and C are located at the central position of the wrist guard main support plate 6. This layout design is helpful to realize simultaneous operation of multiple stations and improve production efficiency.

[0045] Punching support lifting assembly

[0046] Structure and function: The punching support lifting assembly is provided with at least four groups, each of which is composed of a lifting cylinder 9 and a buffer spring 10. The lifting cylinder 9 is fixedly installed on the wrist guard main support plate 6 and connected with the wrist guard support frame 11 through the output end to drive the wrist guard support frame 11 and the opening and closing wrist guard 1 to move up and down. The buffer spring 10 is located at both ends of the cylinder to play a role in shock absorption and stability of the wrist guard support frame 11.

[0047] Installation method: The groups A and D are installed on the punching support lifting assemblies at their respective two ends through separate wrist guard support frames 11, while the groups B and C are symmetrically installed on one wrist guard support frame 11, which is helpful to simplify the structure and save space.

[0048] Outer opening and closing synchronous connecting rod assembly 2 and inner opening and closing synchronous connecting rod assembly 3

[0049] Structure and function: The two connecting rod assemblies have the same structure and are both composed of a support shaft 18, a hinged frame 17 and a pulling connecting rod 19. The hinged frame 17 is sleeved on the support shaft 18 and rotatably installed through bearings, and is provided with an adjusting frame 31. The output ends of the inner connecting rod driving cylinder 4 and the outer connecting rod driving cylinder 5 are respectively hinged to the adjusting frames 31 on the hinged frames 17 of the outer opening and closing synchronous connecting rod assembly 2 and the inner opening and closing synchronous connecting rod assembly 3. The three pulling connecting rods 19 are hingedly installed at the top of the hinged frame 17 and connected with the shaft rods 16 of the bases 14 of the inner opening and closing wrist guard 12 and the outer opening and closing wrist guard 13 to realize the opening and closing action.

[0050] Working principle: The extension and retraction of the output ends of the inner connecting rod driving cylinder 4 and the outer connecting rod driving cylinder 5 drive the hinged frame 17 to rotate around the support shaft 18, and then drive the opening and closing action of the opening and closing wrist guard 1 through the pulling connecting rod 19.

[0051] Locking mechanism

[0052] Structure and function: The lock mechanism includes a lock driving cylinder 21, a lock connecting rod 24, a lock synchronization shaft 23, a connecting plate 25, a lock plate 26, a fixed buckle pin 28, and a movable buckle pin 27. The fixed buckle pin 28 is fixedly installed on the side wall of the inner opening and closing wrist guard 12 of groups B and C, and the side wall of the inner opening and closing wrist guard 12 of groups B and C is provided with a rotating shaft 29. The base 14 of the outer opening and closing wrist guard 13 of groups B and C is provided with a hinge seat 20. The positions of the fixed buckle pin 28, rotating shaft 29, and hinge seat 20 on groups A and D are opposite to those on groups B and C. The lock synchronization shaft 23 penetrates the hinge seat 20 and is rotatably connected with the hinge seat 20 through a bearing. The hinge seat 20 is provided with a cylinder seat 22 on the side wall. The lock driving cylinder 21 is fixedly installed on the cylinder seat 22. The lock connecting rod 24 is hingedly installed on the output end of the lock driving cylinder 21, and the lock connecting rod 24 is sleeved on one end of the lock synchronization shaft 23. The connecting plate 25 is sleeved on both ends of the lock synchronization shaft 23. The lock plate 26 is hingedly installed on the end of the connecting plate 25 through a hinge shaft. The movable buckle pin 27 is sleeved on the rotating shaft 29, and the rotating shaft 29 is provided with a nut to limit the movable buckle pin 27. The end of the lock plate 26 is hingedly connected with the movable buckle pin 27 through a hinge shaft. The movable buckle pin 27 is provided with a bayonet 30 matched with the fixed buckle pin 28.

[0053] Working principle: The lock driving cylinder 21 drives the lock connecting rod 24, and then drives the lock synchronization shaft 23 to rotate, so that the lock plate 26 rotates around the hinge shaft. When the bayonet 30 of the movable buckle pin 27 is aligned with the fixed buckle pin 28, the locking action is realized, and the stable closing of the opening and closing wrist guard 1 is ensured.

[0054] Summary

[0055] The edible mushroom bag four-station wrist opening and closing mechanism realizes multi-station synchronous opening and closing and locking function through ingenious grouping layout and structural design. The stamping support lifting assembly provides stable lifting power, the synchronous connecting rod assembly realizes opening and closing action, and the lock mechanism ensures the stable closing of the opening and closing wrist guard 1. This design not only improves the production efficiency, but also ensures the stability and reliability of the operation.

[0056] The edible mushroom bag four-station wrist opening and closing mechanism mainly comprises an opening and closing wrist guard 1, an outer opening and closing synchronous connecting rod assembly 2, an inner opening and closing synchronous connecting rod assembly 3, an inner connecting rod driving cylinder 4, an outer connecting rod driving cylinder 5, a stamping support lifting assembly, a wrist main support plate 6, a wrist main support rail 7, and a wrist main support guide sleeve 8. The working principle is as follows:

[0057] Main support structure: The wrist main support plate 6 is the core support structure of the entire wrist mechanism, responsible for bearing and fixing all other components.

[0058] Sliding connection: the bottom of the wrist support main support plate 6 is installed with a wrist support main support guide sleeve 8, which cooperates with the wrist support guide rail to realize the sliding connection of the wrist support main support plate 6 on the guide rail. This design enables the entire wrist mechanism to move smoothly along the guide rail direction, adapting to different working positions.

[0059] Punch support lifting assembly: installed on the wrist support main support plate 6, providing lifting power through the lifting cylinder 9. The wrist support frame 11 is installed with a sliding rail 15 to support and guide the movement of the opening and closing wrist piece 1.

[0060] Opening and closing wrist piece 1: including inner opening and closing wrist 12 and outer opening and closing wrist 13, both of which are slidingly installed on the sliding rail 15 of the wrist support frame 11 through the base 14. In the closed state, the inner opening and closing wrist 12 and the outer opening and closing wrist 13 jointly hold the mushroom bag, ensuring that the mushroom bag does not loosen or fall off during operation.

[0061] Outer opening and closing synchronous linkage assembly 2: connected with the outer linkage driving cylinder 5 and the outer opening and closing wrist 13. When the outer linkage driving cylinder 5 works, its power is transmitted to the outer opening and closing wrist 13 through the outer opening and closing synchronous linkage assembly 2, driving it to swing. This swinging action realizes the opening and closing operation of the outer opening and closing wrist 13.

[0062] Inner opening and closing synchronous linkage assembly 3: similar to the outer opening and closing synchronous linkage assembly 2, the inner opening and closing synchronous linkage assembly 3 is connected with the inner linkage driving cylinder 4 and the inner opening and closing wrist 12. When the inner linkage driving cylinder 4 works, it drives the inner opening and closing wrist 12 to swing through the inner opening and closing synchronous linkage assembly 3, completing its opening and closing operation.

[0063] Overall cooperative work: during the entire working process, when the rotating disc mechanism of the edible mushroom bag production equipment drives the four lower material mushroom bags to rotate to the punching station, the inner linkage driving cylinder 4 acts to push the inner opening and closing synchronous linkage assembly 3 to swing, while the outer linkage driving cylinder 5 acts to push the outer opening and closing synchronous linkage assembly 2 to swing. At this time, the four opening and closing wrist pieces 1 are closed to the middle from the opening state to hold the mushroom bags, and then the punching assembly of the edible mushroom bag production equipment presses the material surface of the mushroom bags in the opening and closing wrist pieces 1. During this process, the punching support lifting assembly acts to lift the wrist support frame 11, and the wrist support frame 11 is supported and buffered by the auxiliary action of the buffer spring 10. After the punching is completed, the four opening and closing wrist pieces 1 are opened simultaneously to return to the original position, the punching support lifting assembly is lowered to the original position, and the rotating disc mechanism of the edible mushroom bag production equipment rotates again to move the mushroom bags out.

[0064] In summary, through reasonable structural design and cooperative work between various components, the edible mushroom bag four-station wrist opening and closing mechanism realizes efficient and stable opening and closing operation of the mushroom bags, improving the automation level and production efficiency of edible mushroom bag production.

[0065] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.

Claims

1. A four-station wristband opening and closing mechanism for edible mushroom bags, characterized in that, It includes opening and closing wrist piece (1), outer opening and closing synchronous connecting rod assembly (2), inner opening and closing synchronous connecting rod assembly (3), inner connecting rod drive cylinder (4), outer connecting rod drive cylinder (5), stamping support lifting assembly, wrist main support plate (6), wrist main support rail (7) and wrist main support guide sleeve (8); Wherein, the wrist main support plate (6) is used as the main support structure of the whole wrist mechanism; Wrist main support rail (7), the bottom of the wrist main support plate (6) is provided with wrist main support guide sleeve (8), and the wrist main support plate (6) is connected with the wrist support rail through the wrist main support guide sleeve (8); Stamping support lifting assembly, installed on the wrist main support plate (6), the top of the stamping support lifting assembly is provided with a wrist support frame (11); Opening and closing wrist piece (1) includes inner opening and closing wrist (12) and outer opening and closing wrist (13), the wrist support frame (11) is provided with a slide rail (15), the inner opening and closing wrist (12) and the outer opening and closing wrist (13) are slidably installed on the slide rail (15) through the base (14), and are used for holding the fungus bag in the closed state; Outer opening and closing synchronous connecting rod assembly (2) is connected with outer connecting rod drive cylinder (5) and outer opening and closing wrist (13), and is used for controlling the swing of outer opening and closing wrist (13); Inner opening and closing synchronous connecting rod assembly (3) is connected with inner connecting rod drive cylinder (4) and inner opening and closing wrist (12), and is used for controlling the swing of inner opening and closing wrist (12).

2. The four-station wristband opening and closing mechanism for edible mushroom bags according to claim 1, characterized in that, The opening and closing wrist piece (1) is provided with A, B, C and D groups, and A group and D group are located at both ends of the wrist main support plate (6), and B group and C group are located at the central position of the wrist main support plate (6).

3. The four-station wristband opening and closing mechanism for edible mushroom bags according to claim 2, characterized in that, The stamping support lifting assembly is provided with at least four groups, the A group and the D group are respectively installed on the stamping support lifting assembly at both ends of the wrist main support plate (6) through a separate wrist support frame (11), and the B group and the C group are symmetrically installed on a wrist support frame (11).

4. The four-station wristband opening and closing mechanism for edible mushroom bags according to claim 3, characterized in that, The stamping support lifting assembly includes lifting cylinder (9) and buffer spring (10), the lifting cylinder (9) is fixedly installed on the wrist main support plate (6), the output end of the lifting cylinder (9) is connected with the wrist support frame (11), and the buffer spring (10) is located on both sides of the lifting cylinder (9), and both ends of the buffer spring (10) are respectively welded with the wrist main support plate (6) and the wrist support frame (11).

5. The four-station glove opening and closing mechanism for edible mushroom bags according to claim 4, characterized in that, The outer opening synchronous linkage assembly (2) and the inner opening synchronous linkage assembly (3) are the same in structure, and each comprises a support shaft (18), a hinged frame (17) and a pulling linkage (19), the hinged frame (17) is sleeved on the support shaft (18) and is rotatably installed on the support shaft (18) through a bearing, an adjusting frame (31) is arranged on the hinged frame (17), the output ends of the inner linkage driving cylinder (4) and the outer linkage driving cylinder (5) are hinged to the adjusting frames (31) on the hinged frames (17) of the outer opening synchronous linkage assembly (2) and the inner opening synchronous linkage assembly (3) respectively, and three pulling linkages (19) are hingedly installed on the top of the hinged frame (17), and the bases (14) of the inner opening and closing wrist guards and the outer opening and closing wrist guards (13) are provided with shaft rods (16), and the ends of the pulling linkages (19) are sleeved on the shaft rods (16) through shaft sleeves.

6. The four-station glove opening and closing mechanism for edible mushroom bags according to claim 5, characterized in that, The lock catch mechanism comprises a lock catch driving cylinder (21), a lock catch linkage (24), a lock catch synchronous shaft (23), a connecting plate (25), a lock catch plate (26), a fixed catch pin (28) and a movable catch pin (27), the fixed catch pin (28) is fixedly installed on the side wall of the inner opening and closing wrist guard (12) of the B group and the C group, a rotating shaft (29) is arranged on the side wall of the inner opening and closing wrist guard (12) of the B group and the C group, a hinged seat (20) is arranged on the base (14) of the B group and the C group outer opening and closing wrist guard (13), the positions of the fixed catch pin (28), the rotating shaft (29) and the hinged seat (20) on the A group and the D group are opposite to those on the B group and the C group, the lock catch synchronous shaft (23) penetrates through the hinged seat (20) and is rotatably connected with the hinged seat (20) through a bearing, a cylinder seat (22) is arranged on the side wall of the hinged seat (20), the lock catch driving cylinder (21) is fixedly installed on the cylinder seat (22), the lock catch linkage (24) is hingedly installed on the output end of the lock catch driving cylinder (21), the lock catch linkage (24) is sleeved on one end of the lock catch synchronous shaft (23), the connecting plate (25) is sleeved on both ends of the lock catch synchronous shaft (23), the lock catch plate (26) is hingedly installed on the end of the connecting plate (25) through a hinged shaft, the movable catch pin (27) is sleeved on the rotating shaft (29), and a nut is arranged on the rotating shaft (29) to limit the movable catch pin (27), the end of the lock catch plate (26) is hinged to the movable catch pin (27) through a hinged shaft, and the movable catch pin (27) is provided with a bayonet (30) matched with the fixed catch pin (28).

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