Sealing mechanism of packaging machine

Abstract

The invention discloses a sealing mechanism of a packaging machine, and relates to the technical field of packaging machine equipment, the sealing mechanism comprises a workbench, and further comprises a conveyor belt I, a conveyor belt II, a suspension mechanism, an electric telescopic rod, a buffer mechanism, a guide mechanism, a supporting plate, a cutter, a stretching mechanism, a driving mechanism, a material sliding plate and a supporting mechanism; conveying notches are formed in the two sides of the top of the workbench, and the first conveying belt is fixedly installed between the inner walls of one sides of the two ends of the conveying notches. The second conveying belt is fixedly installed between the inner walls of the other sides of the two ends of the conveying notch, and a gap is formed between the ends, close to each other, of the first conveying belt and the second conveying belt. The film cutting device has the beneficial effects that full connection of product conveying and film cutting is achieved, blockage or damage of products at gaps is reduced, and the cutting accuracy and neatness of a cutter are improved.

Description

Technical Field

[0001] The present application relates to the technical field of packaging machine equipment, and in particular to a sealing mechanism of a packaging machine. Background Art

[0002] With the continuous development of the packaging industry and the gradual improvement of people's requirements for packaging quality, the demand for efficient and stable packaging machine sealing mechanisms in the packaging field is growing. It can be used to ensure the smooth transmission and precise cutting of products during the packaging process, effectively improve packaging efficiency and improve product packaging quality.

[0003] However, the existing packaging machines have deficiencies in the connection between product transmission and film cutting. In traditional packaging machines, the gap between the conveyor belts can easily affect product transmission, which may cause product jamming or damage. In the film cutting process, the suspended cutting of the cutter often makes it difficult to ensure the accuracy and cleanliness of the cutting, which is not conducive to the widespread promotion and application in the packaging industry. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, and the advantages are: achieving full connection between product transmission and film cutting, reducing the jamming or damage of the product in the gap, and improving the accuracy and neatness of the cutter cutting. To achieve the above objectives, the technical solution adopted in the present application is: a sealing mechanism of a packaging machine, including a workbench, and also including: a conveyor belt 1, a conveyor belt 2, a hanging mechanism, an electric telescopic rod, a buffer mechanism, a guide mechanism, a support plate, a cutter, a stretching mechanism, a driving mechanism, a sliding plate, and a support mechanism; conveying slots are opened on both sides of the top of the workbench, and the conveyor belt 1 is fixedly installed between the inner walls on one side of the two ends of the conveying slot; the conveyor belt 2 is fixedly installed between the inner walls on the other side of the two ends of the conveying slot, and a gap is generated between the ends of the conveyor belt 1 and the conveyor belt 2 that are close to each other; the hanging mechanism has two groups, and the two groups of the hanging mechanisms are respectively installed at the middle positions of the two ends of the top of the workbench, and the hanging mechanism includes two supporting columns, and the two supporting columns are fixedly installed at one end of the top of the workbench, and the same hanging plate is fixedly installed between the tops of the two hanging mechanisms; the electric telescopic rod is fixedly installed at the center position of the bottom of the hanging plate; the buffer mechanism has two groups, and the two groups of the buffer mechanism are respectively installed at the two ends of the bottom of the hanging plate; the guide mechanism has two groups, The two groups of guide mechanisms are respectively installed between the two ends of the bottom of the hanging plate and the two ends of the top of the workbench; the support plate is fixedly installed at the bottom of the electric telescopic rod, and a cutter is fixedly installed at the bottom of the support plate; two circular notches are provided at both ends of the workbench, and the two circular notches at one end of the workbench are respectively provided at the positions corresponding to the transmission shafts at the ends of the conveyor belt 1 and the conveyor belt 2 that are close to each other, the stretching mechanism has two groups, and the two groups of stretching mechanisms are respectively installed at the middle positions of the two ends of the workbench, the stretching mechanism includes two stretching components, and the two stretching components at one end of the workbench are respectively installed on the inner wall of one end of the two circular notches close to the workbench; the driving mechanism has two groups, and the two groups of driving mechanisms are respectively installed between the stretching mechanisms and the support plates at both ends of the workbench; the sliding plate is tiltedly arranged between the conveyor belt 1 and the conveyor belt 2, and the two ends of the sliding plate on the side close to the conveyor belt 1 are rotatably connected with the inner walls at both ends of the conveying notch; the supporting mechanism is arranged between the two groups of driving mechanisms.

[0005] Preferably, the buffer mechanism comprises: a socket, the socket is fixedly mounted on one end of the bottom of the suspension plate, an insert rod is inserted into the socket, and a buffer spring is fixedly connected between the inner wall of the bottom of the socket and the top of the insert rod.

[0006] Preferably, the guide mechanism includes: a guide frame, a slide rail, a connecting plate, and a sliding sleeve; the guide frame is fixedly installed between one end of the bottom of the suspension plate and one end of the top of the workbench, and both ends of the support plate pass through the two guide frames; there are two slide rails, and the two slide rails are fixedly installed on the inner walls of both sides of the guide frame; the connecting plate is fixedly installed at one end of the top of the support plate, and sliding sleeves are fixedly installed on both sides of the connecting plate, and the sliding sleeve is slidably connected to the slide rail.

[0007] Preferably, the stretching assembly includes: a sleeve, an adjusting bolt, a stretching spring, and a push rod; the sleeve is fixedly mounted on the inner wall of one end of the circular groove close to the workbench; the adjusting bolt is rotatably connected to the inner wall of the other end of the sleeve circumference; the stretching spring is fixedly connected to one end of the adjusting bolt close to the workbench; the push rod is fixedly connected between the transmission shaft at one end of the conveyor belt and the stretching spring.

[0008] Preferably, the driving mechanism comprises: a tooth plate 1, the tooth plate 1 is fixedly mounted on one end of the bottom of the support plate, and there are racks on both sides of the tooth plate 1, the end of the adjusting bolt close to the conveyor belt 1 away from the conveyor belt 1 is fixedly connected with a gear 1, and the gear 1 is always meshed with the tooth plate 1, the end of the adjusting bolt close to the conveyor belt 2 away from the conveyor belt 2 is fixedly connected with a gear 2, and the gear 2 is always meshed with the tooth plate 1, the gear 1 is meshed with a gear 3, and the gear 3 does not contact the tooth plate 1 and the gear 2, the two gears 3 are fixedly connected with the same connecting shaft, the connecting shaft is rotatably connected to the bottom of both ends of the workbench, and the connecting shaft is located at the center of the gap between the conveyor belt 1 and the conveyor belt 2, and a number of gears 4 are equidistantly arranged on the circumference of the connecting shaft.

[0009] Preferably, the supporting mechanism comprises a tooth plate 2 and a supporting assembly, the supporting assembly comprises two groups, and the two groups of supporting assemblies are respectively installed on the inner walls at both ends of the conveying slot, the supporting assembly comprises a slide rail 2, the slide rail 2 is vertically arranged, the slide rail 2 is fixedly installed on the inner wall of one end of the conveying slot, the slide rail 2 is slidably connected with a sliding sleeve 2, the tooth plate 2 is fixedly installed between the two sliding sleeves 2, the tooth plate 2 is vertically arranged, and the tooth plate 2 has a plurality of equidistantly arranged racks on it, which are respectively continuously meshed with a plurality of the gears 4, a plurality of equidistantly arranged slide rails 3 are fixedly installed on the bottom of the sliding plate, the slide rail 3 is slidably connected with a sliding sleeve 3 at the bottom, and the bottoms of a plurality of the sliding sleeves 3 are hinged to the top of the tooth plate 2.

[0010] Compared with the prior art, the beneficial effects of this application are:

[0011] (1) The present invention proposes a sealing mechanism of a packaging machine, which is provided with a workbench, a conveyor belt 1, a conveyor belt 2, a suspension mechanism, an electric telescopic rod, a buffer mechanism, a guide mechanism, a support plate, a cutter, a stretching mechanism, a driving mechanism, a sliding plate, and a support mechanism; when cutting film, the electric telescopic rod pushes the support plate down, drives the driving mechanism to make the support mechanism lift the sliding plate to a horizontal state, and the cutter cuts the film, while the stretching mechanism tightens the conveyor belt. After the film cutting is completed, the various components are reset, and the buffer mechanism provides a buffer for the support plate to rise. The mechanism realizes the connection between product transmission and film cutting, reduces jamming and damage, and improves the cutting accuracy and sharpness of the cutter.

[0012] (2) The present invention proposes a sealing mechanism for a packaging machine, which is provided with a sleeve, an adjusting bolt, a tension spring, and a push rod. When preparing to cut the film, the electric telescopic rod pushes the support plate down, driving the adjusting bolt to move outward to stretch the spring to increase the tension of the conveyor belt. After the film cutting is completed, the electric telescopic rod contracts, and the adjusting bolt moves inward to reset the spring to reduce the tension of the conveyor belt. When the conveyor belt is taut, it runs stably, and the tension is transmitted to the film so that it moves with the conveyor belt, thereby improving the cutting accuracy and sharpness of the cutter and reducing film loss and breakage.

[0013] (3) The present invention proposes a sealing mechanism of a packaging machine, which is provided with a tooth plate 1, a gear 1, a gear 2, a gear 3, a connecting shaft, and a gear 4. When preparing to cut the film, the electric telescopic rod starts to push the support plate down, driving the tooth plate 1 to go down, and the racks on both sides of the electric telescopic rod cause the gear 1 and the gear 2 to rotate, thereby driving the gear 3, the connecting shaft and the gear 4 to rotate, thereby driving the support mechanism and the stretching mechanism to cut the film. After the film cutting is completed, the electric telescopic rod contracts, and the various components rotate in the opposite direction to restore the initial state, preparing for the next film cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of the front side of the present invention.

[0015] Figure 2 It is a three-dimensional diagram of the back side of the present invention.

[0016] Figure 3 It is a front cross-sectional view of the buffer mechanism in the present invention.

[0017] Figure 4 It is a front cross-sectional view of the stretching mechanism in the present invention.

[0018] Figure 5 It is a three-dimensional diagram of the guide mechanism in the present invention.

[0019] Figure 6 It is a three-dimensional diagram of the driving mechanism in the present invention.

[0020] Figure 7 It is a three-dimensional diagram highlighting the supporting mechanism in the present invention.

[0021] In the figure: 1. workbench; 2. conveyor belt 1; 3. conveyor belt 2; 4. support column; 5. suspension plate; 6. electric telescopic rod; 7. support plate; 8. cutter; 9. slide plate; 10. plug sleeve; 11. plug rod; 12. buffer spring; 13. guide frame; 14. slide rail 1; 15. connecting plate; 16. slide sleeve 1; 17. sleeve; 18. adjusting bolt; 19. tension spring; 20. push rod; 21. gear 1; 22. gear 2; 23. gear 3; 24. connecting shaft; 25. gear 4; 26. tooth plate 2; 27. slide rail 2; 28. slide sleeve 2; 29. ​​support base; 30. tooth plate 1; 31. slide rail 3; 32. slide sleeve 3. DETAILED DESCRIPTION

[0022] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Reference Figure 1-Figure 7, a sealing mechanism of a packaging machine, including a workbench, and also including: a conveyor belt 1 2, a conveyor belt 2 3, a hanging mechanism, an electric telescopic rod 6, a buffer mechanism, a guide mechanism, a support plate 7, a cutter 8, a stretching mechanism, a driving mechanism, a sliding plate 9, and a supporting mechanism; the outer walls of the four corners of the bottom of the workbench 1 are fixedly installed with a support base 29, and conveying slots are opened on both sides of the top of the workbench 1. The conveyor belt 1 2 is fixedly installed between the inner walls of one side of the two ends of the conveying slot; the conveyor belt 2 3 is fixedly installed between the inner walls of the other side of the two ends of the conveying slot, and a gap is generated between the ends of the conveyor belt 1 and the conveyor belt 2 3 that are close to each other; there are two groups of hanging mechanisms, and the two groups of hanging mechanisms are respectively installed at the middle positions of the two ends of the top of the workbench 1, and the hanging mechanism includes two supporting columns 4, and the two supporting columns 4 are fixedly installed at one end of the top of the workbench 1, and the same hanging plate 5 is fixedly installed between the tops of the two hanging mechanisms; the electric telescopic rod 6 is fixedly installed at the center position of the bottom of the hanging plate 5; there are two groups of buffer mechanisms, and the two groups of buffer mechanisms are respectively installed on the hanging plates 5 at the bottom ends; there are two groups of guide mechanisms, which are respectively installed between the two ends of the bottom of the hanging plate 5 and the two ends of the top of the workbench 1; the support plate 7 is fixedly installed at the bottom of the electric telescopic rod 6, and a cutter 8 is fixedly installed at the bottom of the support plate 7; two circular notches are provided at both ends of the workbench 1, and the two circular notches at one end of the workbench 1 are respectively provided at the positions corresponding to the transmission shafts at one end of the conveyor belt 1 2 and the conveyor belt 2 3 that are close to each other, there are two groups of stretching mechanisms, which are respectively installed at the middle positions of the two ends of the workbench 1, and the stretching mechanisms include two stretching components, and the two stretching components at one end of the workbench 1 are respectively installed on the inner wall of one end of the two circular notches close to the workbench 1; there are two groups of driving mechanisms, which are respectively installed between the stretching mechanisms and the support plates 7 at the two ends of the workbench 1; the sliding plate 9 is tiltedly arranged between the conveyor belt 1 2 and the conveyor belt 2 3, and the two ends of the sliding plate 9 close to the conveyor belt 1 2 are rotatably connected between the inner walls of the two ends of the conveying notch; the supporting mechanism is arranged between the two groups of driving mechanisms.

[0025] Further, refer to Figure 1-Figure 3 The buffer mechanism includes: a socket 10, which is fixedly installed at one end of the bottom of the suspension plate 5, a plug rod 11 is inserted into the socket 10, and a buffer spring 12 is fixedly connected between the inner wall of the bottom of the socket 10 and the top of the plug rod 11.

[0026] When the cutter 8 completes the film cutting operation, the support plate 7 and the cutter 8 rise under the guidance of the electric telescopic rod 6, and the top of the support plate 7 will contact the insertion rod 11. As the support plate 7 continues to rise, the insertion rod 11 is pressed into the insertion sleeve 10, compressing the buffer spring 12. The buffer spring 12 absorbs the impact force of the cutter 8 when it rises through its own elastic deformation, plays a buffering role, and prevents the cutter 8 from rising too fast and causing damage to the device.

[0027] Further, refer to Figure 1 , Figure 2 and Figure 5 The guide mechanism includes: a guide frame 13, a slide rail 1, a connecting plate 15, and a sliding sleeve 1; the guide frame 13 is fixedly installed between one end of the bottom of the suspension plate 5 and one end of the top of the workbench 1, and both ends of the support plate 7 pass through the two guide frames 13; there are two slide rails 14, and the two slide rails 14 are fixedly installed on the inner walls of both sides of the guide frame 13; the connecting plate 15 is fixedly installed on one end of the top of the support plate 7, and sliding sleeves 16 are fixedly installed on both sides of the connecting plate 15, and the sliding sleeves 16 are slidably connected to the slide rails 14.

[0028] When film cutting operation is required, the electric telescopic rod 6 is started to push the support plate 7 down. At this time, the connecting plate 15 at one end of the top of the support plate 7 moves with the support plate 7. Since the sliding sleeves 16 on both sides of the connecting plate 15 are slidably connected with the slide rails 14 on the inner walls of the guide frame 13 on both sides, during the descending process of the support plate 7, the sliding sleeves 16 slide downward along the slide rails 14 to ensure that the support plate 7 can descend vertically stably and limit the moving direction of the support plate 7 so that it moves accurately toward the gap between the conveyor belt 2 and the conveyor belt 3.

[0029] Further, refer to Figure 2 , Figure 4 and Figure 6 The stretching assembly includes: a sleeve 17, an adjusting bolt 18, a stretching spring 19, and a push rod 20; the sleeve 17 is fixedly installed on the inner wall of one end of the circular groove close to the workbench 1; the adjusting bolt 18 is rotatably connected to the inner wall of the other end of the sleeve 17; the stretching spring 19 is fixedly connected to one end of the adjusting bolt 18 close to the workbench 1; the push rod 20 is fixedly connected between the transmission shaft at one end of the conveyor belt 2 and the stretching spring 19.

[0030] When preparing for the film cutting operation, the electric telescopic rod 6 is started, pushing the support plate 7 down, driving the driving mechanism, and the driving mechanism drives the adjusting bolt 18 to rotate, and the adjusting bolt 18 moves to the outside of the sleeve 17, stretching the tension spring 19. The tension of the tension spring 19 on the push rod 20 increases, and the push rod 20 acts on the transmission shafts of the conveyor belt 1 2 and the conveyor belt 2 3 to increase the tension of the conveyor belt 1 2 and the conveyor belt 2 3. After the cutting is completed, the electric telescopic rod 6 contracts, driving the support plate 7 and the cutter 8 to rise. At this time, the driving mechanism drives the adjusting bolt 18 to rotate in the opposite direction, and the adjusting bolt 18 moves to the outside and inside of the sleeve 17, and the tension spring 19 gradually returns to the initial state. , the pulling force on the push rod 20 is reduced, thereby reducing the tension of conveyor belt 1 2 and conveyor belt 2 3. When conveyor belt 1 2 and conveyor belt 2 3 are in a taut state, their surfaces are smoother and their operation is more stable. The tension of conveyor belt 1 2 and conveyor belt 2 3 will be transmitted to the tightly sealed film. Due to the effect of friction, the film will move with the conveyor belt, and the taut conveyor belt 1 2 and conveyor belt 2 3 can provide greater friction, so that the film is subjected to continuous pulling force from conveyor belt 1 2 and conveyor belt 2 3 during the conveying process, thereby being tightened, thereby improving the accuracy and neatness of the cutter cutting and reducing the loss and rupture of the taut film during the product packaging process.

[0031] Further, refer to Figure 1-Figure 2 and Figure 6-Figure 7 The driving mechanism includes: a tooth plate 30, which is fixedly installed at one end of the bottom of the support plate 7, and there are racks on both sides of the tooth plate 30, and the end of the adjusting bolt 18 close to the conveyor belt 2 away from the conveyor belt 2 is fixedly connected with a gear 21, and the gear 21 is always meshed with the tooth plate 30, and the end of the adjusting bolt 18 close to the conveyor belt 23 away from the conveyor belt 23 is fixedly connected with a gear 22, and the gear 22 is always meshed with the tooth plate 30, and the gear 21 is meshed with a gear 3 23, and the gear 3 23 does not contact the tooth plate 30 and the gear 2 22, and the two gears 3 23 are fixedly connected with the same connecting shaft 24, the connecting shaft 24 is rotatably connected to the bottom of the two ends of the workbench 1, and the connecting shaft 24 is located at the center of the gap between the conveyor belt 2 and the conveyor belt 2 3, and a number of gears 4 25 are arranged equidistantly on the circumference of the connecting shaft 24.

[0032] When the film cutting operation is ready, the electric telescopic rod 6 starts to push the support plate 7 down, and the toothed plate 30 fixedly installed at one end of the bottom of the support plate 7 descends together with the support plate 7, and the racks on both sides of the toothed plate 30 are respectively meshed with the gear 1 21 and the gear 2 22, driving the gear 1 21 and the gear 2 22 to rotate, and the gear 1 21 in turn drives the gear 3 23 meshing therewith to rotate, driving the connecting shaft 24 to rotate, and as the connecting shaft 24 rotates, a number of gears 4 25 equidistantly arranged on its circumference also rotate accordingly, thereby driving the supporting mechanism and the stretching mechanism to perform corresponding movements to cut the film. When the film cutting is completed, the electric telescopic rod 6 contracts to drive the support plate 7 to rise, and the toothed plate 30 also rises accordingly, and the gear 1 21, the gear 22, the gear 3 23 and the gear 4 25 rotate in the opposite directions, and the entire system gradually returns to its initial state, ready for the next film cutting operation.

[0033] Further, refer to Figure 1 , Figure 2 and Figure 7 The supporting mechanism includes a tooth plate 26 and a supporting assembly. There are two groups of supporting assemblies, which are respectively installed on the inner walls at both ends of the conveying slot. The supporting assembly includes a slide rail 27, which is vertically arranged. The slide rail 27 is fixedly installed on the inner wall of one end of the conveying slot. A sliding sleeve 28 is slidably connected to the slide rail 27. The tooth plate 26 is fixedly installed between the two sliding sleeves 28. The tooth plate 26 is vertically arranged, and there are several equidistantly arranged racks on the tooth plate 26, which are continuously meshed with several gears 4 25 respectively. Several equidistantly arranged slide rails 3 31 are fixedly installed on the bottom of the sliding plate 9. The bottom of the slide rail 3 31 is slidably connected to the sliding sleeve 3 32, and the bottoms of several sliding sleeves 32 are hinged to the top of the tooth plate 26.

[0034] When the film cutting operation is ready, the electric telescopic rod 6 starts to push the support plate 7 down, and the toothed plate 1 30 fixed at one end of the bottom of the support plate 7 drops accordingly, driving the gear 1 21 and the gear 2 22 to rotate, thereby rotating the gear 3 23, the connecting shaft 24 and the gear 4 25 on the connecting shaft 24. Since the rack on the toothed plate 26 is continuously meshed with the gear 4 25, and is slidably connected to the slide rail 27 on the inner wall of the conveying slot through the sliding sleeve 28, under the rotation of the gear 4 25, the toothed plate 26 moves vertically upward along the slide rail 27. At the same time, the slide rail 3 31 at the bottom of the sliding plate 9 cooperates with the sliding sleeve 3 32, and the bottom of the sliding sleeve 32 is hinged to the top of the toothed plate 26. As tooth plate 2 26 moves up, sliding sleeve 32 slides on slide rail 3 31 and lifts one side of slide plate 9, changing it from an inclined state to a horizontal state. The cutter 8 continues to descend driven by the support plate 7, and cuts the film when it contacts the horizontal slide plate 9, thereby improving the accuracy and neatness of the cutter cutting. After the cutting is completed, the electric telescopic rod 6 contracts to drive the support plate 7 and the cutter 8 to rise, and the tooth plate 1 30 also rises. Gear 1 21, gear 2 22, gear 3 23 and gear 4 25 rotate in opposite directions. Tooth plate 2 26 moves vertically downward along slide rail 2 27, and sliding sleeve 32 slides in the opposite direction on slide rail 3 31. The slide plate 9 resumes its inclined state, waiting for the next film cutting operation.

[0035] Working principle: First, when film cutting operation is required, the electric telescopic rod 6 is started, pushing the support plate 7 to move downward along the guide mechanism. During the descent of the support plate 7, the driving mechanism is driven, thereby driving the support mechanism and the stretching mechanism to perform corresponding movements. The stretching mechanism tightens the conveyor belt 1 2 and the conveyor belt 2 3. The support mechanism is located between the two sets of driving mechanisms. Its function is to lift up one side of the slide plate 9 which is tilted between the conveyor belt 1 2 and the conveyor belt 2 3. The slide plate 9 is rotatably connected to the conveying notch. With the action of the support mechanism, the slide plate 9 gradually changes from an inclined state to a horizontal state, and the cutter 8 is supported. The plate 7 continues to descend under the drive of the plate 7. When it contacts the sliding plate 9 in a horizontal state, the film is cut. After the cutting is completed, the electric telescopic rod 6 contracts, driving the support plate 7 and the cutter 8 to rise, and the driving mechanism, the stretching mechanism and the supporting mechanism are also reset. The sliding plate 9 returns to the inclined state and waits for the next film cutting operation. At the same time, the buffer mechanism plays a role at both ends of the bottom of the hanging plate 5. When it contacts the support plate 7, it provides a buffer for the rise of the support plate 7, reduces the impact force, realizes the full connection between product transmission and film cutting, reduces the jamming or damage of the product in the gap, and improves the accuracy and neatness of the cutter cutting.

[0036] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A sealing mechanism for a packaging machine, comprising a workbench (1), characterized in that: Also includes: Conveyor belt 1 (2): Conveyor slots are provided on both sides of the top of the workbench (1), and the conveyor belt 1 (2) is fixedly installed between the inner walls of one side of the two ends of the conveyor slot; Conveyor belt 2 (3): the conveyor belt 2 (3) is fixedly installed between the inner walls of the other side of the two ends of the conveyor slot, and a gap is formed between the ends of the conveyor belt 1 (2) and the conveyor belt 2 (3) that are close to each other; Suspension mechanism: There are two groups of suspension mechanisms, which are respectively installed at the middle positions of the two ends of the top of the workbench (1). The suspension mechanism comprises two support columns (4), and the two support columns (4) are fixedly installed at one end of the top of the workbench (1). The same suspension plate (5) is fixedly installed between the tops of the two suspension mechanisms; Electric telescopic rod (6): the electric telescopic rod (6) is fixedly installed at the bottom center of the suspension plate (5); Buffer mechanism: There are two groups of buffer mechanisms, and the two groups of buffer mechanisms are respectively installed at two ends of the bottom of the suspension plate (5); Guide mechanism: There are two groups of guide mechanisms, and the two groups of guide mechanisms are respectively installed between the two ends of the bottom of the hanging plate (5) and the two ends of the top of the workbench (1); Support plate (7): the support plate (7) is fixedly mounted on the bottom of the electric telescopic rod (6), and a cutter (8) is fixedly mounted on the bottom of the support plate (7); Stretching mechanism: two circular notches are provided at both ends of the workbench (1), and the two circular notches at one end of the workbench (1) are respectively provided at positions corresponding to the transmission shafts at the ends of the conveyor belt 1 (2) and the conveyor belt 2 (3) close to each other. The stretching mechanism has two groups, and the two groups of stretching mechanisms are respectively installed at the middle positions of the two ends of the workbench (1). The stretching mechanism includes two stretching components, and the two stretching components at one end of the workbench (1) are respectively installed on the inner wall of the two circular notches at one end close to the workbench (1); Driving mechanism: the driving mechanism has two groups, and the two groups of driving mechanisms are respectively installed between the stretching mechanisms at both ends of the workbench (1) and the supporting plate (7); Sliding plate (9): the sliding plate (9) is obliquely arranged between the conveyor belt 1 (2) and the conveyor belt 2 (3), and the two ends of the sliding plate (9) close to the conveyor belt 1 (2) are rotatably connected to the inner walls of the two ends of the conveying slot; Support mechanism: The support mechanism is arranged between the two groups of driving mechanisms.

2. A sealing mechanism for a packaging machine as claimed in claim 1, characterized in that: The buffer mechanism comprises: a socket (10), the socket (10) being fixedly mounted on one end of the bottom of the suspension plate (5), an insert rod (11) being inserted and adapted in the socket (10), and a buffer spring (12) being fixedly connected between the inner wall of the bottom of the socket (10) and the top of the insert rod (11).

3. A sealing mechanism for a packaging machine as claimed in claim 1, characterized in that: The guiding mechanism comprises: Guide frame (13): the guide frame (13) is fixedly installed between one end of the bottom of the hanging plate (5) and one end of the top of the workbench (1), and both ends of the support plate (7) pass through the two guide frames (13); Slide rail 1 (14): There are two slide rails 1 (14), and the two slide rails 1 (14) are fixedly installed on the inner walls of both sides of the guide frame (13); Connecting plate (15): the connecting plate (15) is fixedly mounted on one end of the top of the supporting plate (7), a sliding sleeve (16) is fixedly mounted on both sides of the connecting plate (15), and the sliding sleeve (16) is slidably connected to the sliding rail (14).

4. A sealing mechanism for a packaging machine as claimed in claim 1, characterized in that: The stretching assembly comprises: Sleeve (17): the sleeve (17) is fixedly mounted on the inner wall of one end of the circular slot close to the workbench (1); Adjusting bolt (18): the adjusting bolt (18) is rotatably connected to the inner wall of the other end of the circumference of the sleeve (17); Tension spring (19): the tension spring (19) is fixedly connected to one end of the adjusting bolt (18) close to the workbench (1); Push rod (20): The push rod (20) is fixedly connected between the transmission shaft at one end of the conveyor belt (2) and the tension spring (19).

5. A sealing mechanism for a packaging machine as claimed in claim 4, characterized in that: The driving mechanism comprises: a tooth plate 1 (30), the tooth plate 1 (30) being fixedly mounted on one end of the bottom of the support plate (7), and having racks on both sides of the tooth plate 1 (30), the end of the adjusting bolt (18) close to the conveyor belt 1 (2) away from the conveyor belt 1 (2) being fixedly connected to a gear 1 (21), and the gear 1 (21) is always meshed with the tooth plate 1 (30), the end of the adjusting bolt (18) close to the conveyor belt 2 (3) away from the conveyor belt 2 (3) being fixedly connected to a gear 2 (22), and the gear 2 (22) The gear 1 (21) is always meshed with the tooth plate 1 (30), the gear 1 (21) is meshed with the gear 3 (23), and the gear 3 (23) does not contact the tooth plate 1 (30) and the gear 2 (22), the two gears 3 (23) are fixedly connected with the same connecting shaft (24), the connecting shaft (24) is rotatably connected to the bottom of the two ends of the workbench (1), and the connecting shaft (24) is located at the center of the gap between the conveyor belt 1 (2) and the conveyor belt 2 (3), and a plurality of gears 4 (25) are arranged equidistantly on the circumference of the connecting shaft (24).

6. A sealing mechanism for a packaging machine as claimed in claim 5, characterized in that: The supporting mechanism comprises a tooth plate 2 (26) and a supporting assembly. The supporting assembly comprises two groups. The two groups of supporting assemblies are respectively mounted on the inner walls at both ends of the conveying slot. The supporting assembly comprises a slide rail 2 (27). The slide rail 2 (27) is vertically arranged. The slide rail 2 (27) is fixedly mounted on the inner wall of one end of the conveying slot. The slide rail 2 (27) is slidably connected with a slide sleeve 2 (28). The tooth plate 2 (26) is fixedly mounted between the two slide sleeves 2 (28). The tooth plate 2 (26) is vertically arranged. A plurality of equally spaced racks are arranged on the tooth plate 2 (26) and are respectively continuously meshed with a plurality of gears 4 (25). A plurality of equally spaced slide rails 3 (31) are fixedly mounted on the bottom of the sliding plate (9). The bottom of the slide rail 3 (31) is slidably connected with a slide sleeve 3 (32), and the bottoms of the plurality of slide sleeves 3 (32) are hinged to the top of the tooth plate 2 (26).

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