Double seal vacuum sealer

Abstract

The application relates to the technical field of sealing machines, in particular to a double-sealing vacuum sealing machine, which comprises a first workbench, a transmission motor is installed on the outer wall of the first workbench, a first toothed belt wheel is fixed to the output end of the transmission motor, a toothed belt is engaged with the outer wall of the first toothed belt wheel, a second toothed belt wheel is engaged with the inner wall of the toothed belt, and the second toothed belt wheel rotates on the outer wall of the first workbench. The double-sealing vacuum sealing machine is characterized in that when the hinged plate rotates upwards, the bag placed on the surface of the hinged plate rotates synchronously, and at the same time, the bag is being pumped by the flat air pump; along with the movement of the sliding frame, the rotating amplitude of the hinged plate is larger and larger, so the inclination amplitude of the bag is larger and larger; at this time, the inclination of the bag causes the bag opening to be gradually separated from the flat air pump, so as to prevent liquid in the bag from overflowing to the bag opening and being sucked into the flat air pump during the pumping process of the flat air pump.

Description

Technical Field

[0001] The invention relates to the technical field of sealing machines, in particular to a double-sealing vacuum sealing machine. Background Art

[0002] Currently, the existing vacuum sealing machines on the market are divided into two types: continuous and non-continuous. Continuous vacuum sealing machines vacuum and heat-seal the bags during the conveying process, while non-continuous vacuum sealing machines require the bags to be sealed to be completely placed inside the sealing machine before vacuuming and sealing. In order to pursue production efficiency, continuous vacuum sealing machines are generally used in the market.

[0003] However, the continuous vacuum sealing machines currently available on the market have the following problems during use: before sealing the bagged food, the bag mouth needs to be manually put on the outside of the sealing machine's exhaust pipe, which requires a certain amount of manpower. In addition, since some bagged foods contain liquids, during the vacuuming process, the air in the bag continues to decrease and the air pressure continues to decrease, causing the bag to shrink. At this time, the liquid level is likely to rise, causing the liquid to be extracted by the exhaust pipe. Summary of the Invention

[0004] The present invention provides a double-sealing vacuum sealer, which has the beneficial effect of preventing the liquid in the bag from being extracted to the greatest extent, and solves the problem mentioned in the above background technology that some bagged foods contain liquid. During the vacuuming process, the air in the bag is continuously reduced and the air pressure is continuously reduced, which easily causes the liquid to boil and leak out, or the liquid level rises and causes the liquid to be extracted by the vacuum pipe. To achieve the above purpose, the present invention provides the following technical solution: A double-sealing vacuum sealer includes a first workbench, the outer wall of the first workbench is mounted with a transmission motor, the output end of the transmission motor is fixed with a first toothed pulley, the outer wall of the first toothed pulley is engaged with a toothed belt, the inner wall of the toothed belt is engaged with a second toothed pulley, the second toothed pulley rotates on the outer wall of the first workbench, the outer wall of the toothed belt is fixed with a rotating belt, the outer wall of the rotating belt is provided with a first slide groove, the inner wall of the first slide groove is fixed with a first guide rod, the outer wall of the first guide rod is slidably provided with a first slider, the outer wall of the first slider is fixed with a first spring, one end of the first spring is fixed to the inner wall of the first slide groove;

[0005] A sliding frame is fixed to the outer wall of the first slider, a second inclined surface is provided on the inner wall of the sliding frame, a hinged plate is hingedly connected to the inner wall of the sliding frame, a second sliding groove is provided on the outer wall of the first workbench, a lifting frame is slidably provided on the inner wall of the second sliding groove, two second sliders are slidably provided on the outer wall of the lifting frame, a second spring is sleeved on the outer wall of the lifting frame, and the second spring is fixed to the outer wall of the rotating belt;

[0006] A first abutment block is fixed to an outer wall of the first sliding block, and a fourth guide rod is fixed to an outer wall of the lifting frame.

[0007] As an optional solution of the double-sealing vacuum sealing machine described in the present invention, wherein: a fourth ball is rotatably provided at the end of the fourth guide rod, a first protrusion and a second protrusion are fixed to the outer wall of the first workbench, and the ends of the first protrusion and the second protrusion are both hemispherically arranged.

[0008] As an optional solution of the double-sealing vacuum sealer described in the present invention, wherein: the outer wall of the hinged plate is provided with a guide groove, the outer wall of the second sliding block is provided with a through groove, the inner wall of the through groove is fixed with a fourth spring, one end of the fourth spring is fixed with a second guide rod, the end of the second guide rod is rotatably provided with a first ball, and the first ball slides in the guide groove.

[0009] As an optional solution of the double-sealing vacuum sealer of the present invention, a third guide rod is slidably provided on the inner wall of the rotating belt, a third ball is rotatably provided on one end of the third guide rod, a second ball is rotatably provided on the other end of the third guide rod, the third ball abuts against the outer wall of the hinge plate, a fixed plate is fixed to the outer wall of the first workbench, and an ascending inclined surface is provided on the outer wall of the fixed plate;

[0010] The outer wall of the first workbench is further provided with a groove, and the notch of the groove is provided with two arc surfaces.

[0011] As an optional solution of the double-sealing vacuum sealing machine described in the present invention, wherein: the outer wall of the first interference block is provided with a first inclined surface, the outer wall of the first workbench is fixed with a second workbench, the outer wall of the second workbench is fixed with a fourth interference block, the outer wall of the fourth interference block is provided with a fifth inclined surface, the outer wall of the second workbench is also fixed with a fifth interference block, and the outer wall of the fifth interference block is provided with a sixth inclined surface.

[0012] As an optional solution of the double-sealing vacuum sealing machine of the present invention, wherein: a plurality of evenly distributed third friction blocks are fixed to the outer wall of the rotating belt, and the outer wall of the third friction blocks is provided with a fourth inclined surface;

[0013] The inner wall of the second workbench is provided with a transverse plate, the inner wall of the second workbench is fixed with a guide rod, the transverse plate is slidably sleeved on the outer wall of the guide rod, and two transverse plates are provided.

[0014] As an optional solution of the double-sealing vacuum sealing machine described in the present invention, the inner wall of the second workbench is also installed with a resistance heat fuser, the outer wall of the horizontal plate is fixed with a second interference block, and the outer wall of the second interference block is provided with a third inclined surface.

[0015] As an optional solution of the double-sealing vacuum sealing machine of the present invention, wherein: a second conveyor belt and a third conveyor belt are installed on the inner wall of the second workbench;

[0016] An air pump is installed on the outer wall of the second workbench, and a connecting pipe is fixed to the air extraction end of the air pump. One end of the connecting pipe is connected to a third slider. A third slide groove is opened on the outer wall of the second workbench, and the third slider slides on the inner wall of the third slide groove. The outer wall of the third slider is connected to a flat air extraction pipe.

[0017] As an optional solution of the double-sealing vacuum sealing machine described in the present invention, a third spring is fixed to the outer wall of the third sliding block, and one end of the third spring is fixed to the outer wall of the second workbench.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, during the movement, the flat exhaust pipe follows the movement and the third spring is stretched. Then the bag opening and the flat exhaust pipe in the bag opening enter the space between the second conveyor belt and the third conveyor belt, and are clamped and transported by the second conveyor belt and the third conveyor belt at the same time. It should be noted that the conveying speed of the second conveyor belt and the third conveyor belt is consistent with the rotation speed of the rotating belt, and in the process of moving, the exhaust pump is started, and the exhaust pump will continuously extract the air in the flat exhaust pipe and the bag through the connecting pipe. Since the bag opening is under pressure and conveyed between the second conveyor belt and the third conveyor belt at this time, the airtightness of the flat exhaust pipe can be guaranteed during exhaust.

[0020] When the cam is in the air, the second guide rod is moved upwards, and the third guide rod moves upwards, and the third ball at one end moves upwards synchronously. The upward movement of the third ball will contact the hinge plate, causing the hinge plate to rotate upwards along the hinge to a certain extent. The upward rotation of the hinge plate will cause the bag body placed on its surface to rotate synchronously. At this time, the bag body is being pumped by the flat exhaust pipe. As the sliding frame moves, the upward rotation amplitude of the hinge plate becomes larger and larger, so the inclination amplitude of the bag body also becomes larger and larger. At this time, the inclination of the bag causes the bag mouth to gradually be pulled away from the flat exhaust pipe, so as to prevent the flat exhaust pipe from pumping air into the bag. If the bag contains liquid, it is easy to overflow to the bag mouth due to the continuous shrinking of the space in the bag, and thus be extracted by the flat exhaust pipe.

[0021] When the third guide rod moves downward, the third ball on the upper end of the third guide rod will also move downward. At this time, the hinged plate will also sag along the hinged joint due to gravity. At this time, the sealed bag body will slide along the drooping hinged plate in the direction away from the sliding frame, and at this time, the fourth guide rod and the fourth ball will simultaneously abut against the first protrusion. The abutment prompts the fourth guide rod to move up with the lifting frame, and the lifting frame moves up to release the limit on the bag body. At this time, the bag body slides out of the sliding frame along the drooping hinged plate, completing the unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall top view of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the sliding frame structure of the present invention;

[0024] Figure 3 It is a rear view structural schematic diagram of the present invention;

[0025] Figure 4 It is a schematic diagram of a partial top-view cross-sectional structure of the present invention;

[0026] Figure 5 It is a front view structural schematic diagram of the present invention;

[0027] Figure 6 For the present invention Figure 5 A in the middle is an enlarged structural diagram;

[0028] Figure 7 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0030] Figure 9 It is a schematic diagram of the cross-sectional structure of the sliding frame and its surroundings of the present invention;

[0031] Figure 10 is a schematic diagram of the cross-sectional structure of the second slider of the present invention;

[0032] Figure 11 It is a schematic diagram of the overall side cross-sectional structure of the present invention;

[0033] Figure 12 It is a schematic structural diagram of the overall top cross-section of the present invention.

[0034] Figure numerals: 1, first workbench; 101, second toothed pulley; 3, transmission motor; 5, first toothed pulley; 6, toothed belt; 7, rotating belt; 8, first slide; 9, first guide rod; 10, first spring; 11, first slider; 12, sliding frame; 121, second inclined plane; 13, second slide; 14, lifting frame; 15, second spring; 16, second slider; 161, through slot; 162, fourth spring; 17, second guide rod; 18, first ball; 19, first contact block; 20, first inclined plane; 21, fourth guide rod; 22, fourth ball; 23, hinged plate; 24, guide slot; 25, third guide rod; 26, second Ball; 27. Third ball; 28. Second conveyor belt; 29. ​​Third conveyor belt; 291. Second workbench; 30. Vacuum pump; 31. Connecting pipe; 32. Third slider; 33. Third slide groove; 34. Third spring; 35. Flat vacuum pipe; 36. Guide rod; 37. Cross plate; 38. Resistance fuse; 39. Second contact block; 40. Third inclined plane; 41. Third contact block; 42. Fourth inclined plane; 43. Fourth contact block; 44. Fifth inclined plane; 45. Fifth contact block; 46. Sixth inclined plane; 47. Groove; 48. Arc surface; 49. First protrusion; 50. Second protrusion; 51. Fixed plate; 52. Rising inclined plane. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] For example 1, please refer to Figures 1-12 A double-sealing vacuum sealing machine includes a first workbench 1, a transmission motor 3 is installed on the outer wall of the first workbench 1, a first toothed pulley 5 is fixed to the output end of the transmission motor 3, the outer wall of the first toothed pulley 5 is meshed with a toothed belt 6, the inner wall of the toothed belt 6 is meshed with a second toothed pulley 101, the second toothed pulley 101 rotates on the outer wall of the first workbench 1, the outer wall of the toothed belt 6 is fixed with a rotating belt 7, the outer wall of the rotating belt 7 is provided with a first chute 8, the inner wall of the first chute 8 is fixed with a first guide rod 9, the outer wall of the first guide rod 9 is slidably provided with a first slider 11, the outer wall of the first slider 11 is fixed with a first spring 10, and one end of the first spring 10 is fixed to the inner wall of the first chute 8;

[0037] A sliding frame 12 is fixed to the outer wall of the first slider 11. A second inclined surface 121 is defined on the inner wall of the sliding frame 12. A hinge plate 23 is hingedly connected to the inner wall of the sliding frame 12. A second sliding groove 13 is defined on the outer wall of the first workbench 1. A lifting frame 14 is slidably provided on the inner wall of the second sliding groove 13. Two second sliders 16 are slidably provided on the outer wall of the lifting frame 14. A second spring 15 is sleeved on the outer wall of the lifting frame 14. The second spring 15 is fixed to the outer wall of the rotating belt 7.

[0038] A first abutment block 19 is fixed to the outer wall of the first sliding block 11 , and a fourth guide rod 21 is fixed to the outer wall of the lifting frame 14 ;

[0039] The end of the fourth guide rod 21 is rotatably provided with a fourth ball 22, and the outer wall of the first workbench 1 is fixed with a first protrusion 49 and a second protrusion 50, and the ends of the first protrusion 49 and the second protrusion 50 are both hemispherical;

[0040] A guide groove 24 is defined on the outer wall of the hinge plate 23, and a through groove 161 is defined on the outer wall of the second slider 16. A fourth spring 162 is fixed to the inner wall of the through groove 161. A second guide rod 17 is fixed to one end of the fourth spring 162. A first ball bearing 18 is rotatably provided on the end of the second guide rod 17, and the first ball bearing 18 slides in the guide groove 24.

[0041] A third guide rod 25 is slidably provided on the inner wall of the rotating belt 7. A third ball 27 is rotatably provided on one end of the third guide rod 25. A second ball 26 is rotatably provided on the other end of the third guide rod 25. The third ball 27 abuts against the outer wall of the hinge plate 23. A fixed plate 51 is fixed to the outer wall of the first workbench 1. The outer wall of the fixed plate 51 is provided with an ascending inclined surface 52.

[0042] The outer wall of the first workbench 1 is further provided with a groove 47, and the notch of the groove 47 is provided with two arc surfaces 48;

[0043] A first inclined surface 20 is formed on the outer wall of the first interference block 19. A second workbench 291 is fixed to the outer wall of the first workbench 1. A fourth interference block 43 is fixed to the outer wall of the second workbench 291. A fifth inclined surface 44 is formed on the outer wall of the fourth interference block 43. A fifth interference block 45 is further fixed to the outer wall of the second workbench 291. A sixth inclined surface 46 is formed on the outer wall of the fifth interference block 45.

[0044] A plurality of evenly distributed third abutment blocks 41 are fixed to the outer wall of the rotating belt 7, and a fourth inclined surface 42 is formed on the outer wall of the third abutment blocks 41;

[0045] The inner wall of the second workbench 291 is provided with a transverse plate 37, the inner wall of the second workbench 291 is fixed with a guide rod 36, and the transverse plate 37 is slidably sleeved on the outer wall of the guide rod 36, and two transverse plates 37 are provided;

[0046] A resistance heat fuse 38 is also installed on the inner wall of the second workbench 291, and a second abutment block 39 is fixed on the outer wall of the horizontal plate 37. The outer wall of the second abutment block 39 is provided with a third inclined surface 40.

[0047] The inner wall of the second workbench 291 is installed with a second conveyor belt 28 and a third conveyor belt 29;

[0048] An air pump 30 is installed on the outer wall of the second workbench 291. A connecting pipe 31 is fixed to the air extraction end of the air pump 30. One end of the connecting pipe 31 is connected to a third slider 32. A third slide groove 33 is opened on the outer wall of the second workbench 291. The third slider 32 slides on the inner wall of the third slide groove 33. A flat air extraction pipe 35 is connected to the outer wall of the third slider 32. A third spring 34 is fixed to the outer wall of the third slider 32. One end of the third spring 34 is fixed to the outer wall of the second workbench 291.

[0049] In this embodiment, the vacuum sealing machines currently available on the market are divided into two types: continuous and non-continuous. Continuous vacuum sealing machines vacuumize and heat-seal bags during the bag conveying process, while non-continuous vacuum sealing machines require the bags to be sealed to be completely placed inside the sealing machine before vacuuming and sealing. In order to pursue production efficiency, continuous vacuum sealing machines are generally used in the market.

[0050] However, the existing continuous vacuum sealing machines on the market have the following problems during use: before sealing the bagged food, the bag mouth needs to be manually put on the outside of the sealing machine's exhaust pipe, which consumes a certain amount of manpower. In addition, since some bagged foods contain liquids, the air in the bag is continuously reduced during the vacuuming process, and the air pressure is continuously reduced, causing the bag to shrink. At this time, the liquid level is likely to rise, causing the liquid to be extracted by the exhaust pipe;

[0051] In order to avoid the above situation, during the process of using the sealing machine, the transmission motor 3 is started, and the transmission motor 3 drives the first toothed pulley 5 at the output end to rotate. The first toothed pulley 5 drives the toothed belt 6 to rotate together through a meshing relationship. When the toothed belt 6 rotates, it drives the second toothed pulley 101 to rotate through a meshing relationship. At this time, the toothed belt 6 will mesh and move along the outer wall of the first toothed pulley 5 and the second toothed pulley 101. As the toothed belt 6 moves, it will also drive the outer wall rotating belt 7 to rotate together. The transmission motor 3 is set to rotate the same number of circles each time it is started, that is, at this time, the distance the rotating belt 7 moves each time is the distance between the two adjacent sliding frames 12;

[0052] The open end of the bagged food to be sealed is placed on the hinged plate 23 in the sliding frame 12 by the manipulator, and the opening of the bag is facing the opening of the sliding frame 12. At this time, as the sliding frame 12 moves, the fourth guide rod 21 moves synchronously with the fourth ball 22, and in the process of movement, the fourth ball 22 will be forced to contact the second protrusion 50, and the friction will cause the fourth ball 22 to bring the fourth guide rod 21 upward. At this time, the fourth guide rod 21 pulls the second spring 15 upward with the lifting frame 14 and moves upward. At this time, the first conveyor belt 2 is started to transport the food bag on the surface of the first conveyor belt 2 to the sliding frame 12 facing it. The food bag will slide to the inner wall of the sliding frame 12 along the inclined angle of the hinged plate 23 as shown in the figure. The upward movement of the lifting frame 14 is to prevent the food bag from being obstructed by the lifting frame 14.

[0053] At this time, the transmission motor 3 is started again. When the rotating belt 7 continues to move the sliding frame 12 counterclockwise with the sliding frame 12, the fourth ball bearing 22 is released from the interference with the second protrusion 50. At this time, the second spring 15 is reset and the lifting frame 14 moves downward. At this time, as the rotating belt 7 continues to move counterclockwise with the sliding frame 12, when the first inclined surface 20 of the outer wall of the first interference block 19 interferes with the fifth inclined surface 44 of the outer wall of the fourth interference block 43, the interference forces the first interference block 19 to be forced to move in the direction of compressing the first spring 10, and at the same time, it moves with the first slider 11 along the outer wall of the first guide rod 9. The first slider 11 moves with the sliding frame 12, and as the sliding frame 12 moves, the guide groove 24 on the surface of the hinge plate 23 is caused to move along the first ball bearing 18 outer wall slides, at this time the second guide rod 17 is subjected to force along the movable guide groove 24, and will bring the two second sliders 16 to slide along the outer wall of the lifting frame 14 close to each other, and the mutual approach of the second sliders 16 on both sides will laterally squeeze the two sides of the packaging bag placed in the sliding frame 12, causing the opening of the packaging bag to deform and become larger, and at this time the movement of the sliding frame 12 causes the lifting frame 14 to be relatively closer to the left side of the sliding frame 12 just above, and the lifting frame 14 is now closer to the uppermost end of the hinge plate 23, and since the hinge plate 23 is an inclined surface as shown in the figure, the bag opening placed in the sliding frame 12 is tilted upward, and the movement of the sliding frame 12 can make the upper end of the packaging bag stick to the lower surface of the lifting frame 14, from the inclined When the first stop 19 is released from the contact with the fourth stop 43, the first spring 10 is reset and the sliding frame 12 is reset. During the process of reset, the sliding frame 12 is reset and the packaging bag is instantly moved toward the direction of the exhaust pipe 35. When the end of the flat exhaust pipe 35 enters the bag opening, even if the bag opening is no longer subject to interference, the end of the flat exhaust pipe 35 is already in the bag. Therefore, at this time, the opened packaging bag can be smoothly loaded into the flat bag. The flat exhaust pipe 35 is contained in the bag opening, and at this time, as the packaging bag moves, it will move toward the second conveyor belt 28 and the third conveyor belt 29 with the flat exhaust pipe 35 inserted inside. During the movement, the flat exhaust pipe 35 follows the movement and is stretched by the third spring 34. Then the bag opening and the flat exhaust pipe 35 in the bag opening enter the space between the second conveyor belt 28 and the third conveyor belt 29, and are simultaneously clamped and transported by the second conveyor belt 28 and the third conveyor belt 29. It should be noted that the conveying speed of the second conveyor belt 28 and the third conveyor belt 29 is consistent with the rotation speed of the rotating belt 7, and in the process of moving, the exhaust pump 30 is started, and the exhaust pump 30 will continuously extract the air in the flat exhaust pipe 35 and the bag through the connecting pipe 31.And because the bag opening is now tightly conveyed between the second conveyor belt 28 and the third conveyor belt 29, the airtightness of the flat exhaust pipe 35 during exhaust can be ensured;

[0054] At this time, as the sliding frame 12 continues to move, the second ball 26 will continue to climb along the ascending inclined surface 52 provided on the outer wall of the fixed plate 51. The climbing of the second ball 26 will bring the third guide rod 25 upward together. The upward movement of the third guide rod 25 will bring the third ball 27 at one end upward synchronously. The upward movement of the third ball 27 will contact the hinge plate 23, prompting the hinge plate 23 to rotate upward along the hinge to a certain extent. The upward rotation of the hinge plate 23 will cause the bag placed on its surface to rotate synchronously. At this time, the bag is being pumped by the flat exhaust pipe 35. As the sliding frame 12 moves, the upward rotation amplitude of the hinge plate 23 becomes larger and larger, so the inclination amplitude of the bag is also larger and larger. At this time, the inclination of the bag prompts the bag opening to gradually be pulled out of the flat exhaust pipe 35.

[0055] When the hinge plate 23 rotates and tilts along the hinge, the fourth spring 162 in the through slot 161 is compressed or stretched according to the situation, thereby causing the second guide rod 17 to slide into or out of the through slot 161, so that the first ball 18 always contacts the guide slot 24. It should be noted that the second slide slot 13 slides in the guide slot 24. When the lifting frame 14 moves upward with the second slider 16, the second guide rod 17 and the first ball 18, it does not move with the hinge plate 23. Instead, it causes the fourth spring 162 to rebound and cause the second guide rod 17 to slide and protrude in the direction away from the through slot 161, so as to keep the first ball 18 at the end of the second guide rod 17 always sliding in the guide slot 24.

[0056] This prevents the flat exhaust pipe 35 from pumping air into the bag. If there is liquid in the bag, it is easy to overflow to the bag opening due to the continuous shrinkage of the space inside the bag, and then be sucked into the bag by the flat exhaust pipe 35.

[0057] When the sliding frame 12 continues to move, the first inclined surface 20 of the outer wall of the first interference block 19 will conflict with the sixth inclined surface 46 of the outer wall of the fifth interference block 45. The conflict prompts the first interference block 19 to move with the first slider 11 along the outer wall of the first guide rod 9 in the direction of compressing the first spring 10. At this time, the sliding frame 12 moves in the direction of compressing the first spring 10 again, and the movement of the sliding frame 12 moves with the bag, separating the bag opening from the flat exhaust pipe 35. At this time, the third spring 34 rebounds and drives the third slider 32 to slide and reset along the third slide groove 33, and the flat exhaust pipe 35 returns to its original position. After the flat exhaust pipe 35 is pulled out, the bag opening is still pressed between the second conveyor belt 28 and the third conveyor belt 29 to continue to be transported, so the airtightness can still be guaranteed. When the rotating belt 7 brings the sliding frame When 12 continues to move, the third interference block 41 of the outer wall of the rotating belt 7 will interfere with the second interference block 39 of the outer wall of the cross plate 37. The interference causes the fourth inclined surface 42 of the outer wall of the third interference block 41 to interfere with the third inclined surface 40 of the outer wall of the second interference block 39. The interference causes the second interference block 39 to move upward with the cross plate 37 under force. During the movement, it is guided by the guide rod 36. As the cross plate 37 moves upward, it eventually causes the cross plate 37 to press the protruding bag opening between the resistance fuse 38. At this time, the two cross plates 37 press the bag opening at the pressing position and then perform heat-melt sealing on the resistance fuse 38. Moreover, since the second interference block 39 has a certain length, the third interference block 41 will move a distance along the lower surface of the second interference block 39 after the interference. The time for this distance movement can make the heat-melt sealing uniform.

[0058] After sealing is completed, when the rotating belt 7 continues to move counterclockwise with the sliding frame 12, the second ball 26 will slide into the groove 47 along the arc surface 48. Since the groove 47 is lower than the surface of the first working table 1, the third guide rod 25 will also slide into the groove 47 with the second ball 26 until the second ball 26 contacts the bottom of the groove 47. As the third guide rod 25 moves downward, the third ball 27 at the upper end of the third guide rod 25 will also move downward. At this time, the hinge plate 23 will also sag along the hinge due to gravity. At this time, the sealed bag body slides along the drooping hinge plate 23 in the direction away from the second inclined surface 121, and at this time, the fourth guide rod 21 and the fourth ball 22 will simultaneously contact the first protrusion 49, causing the friction to cause the fourth guide rod 21 to move up with the lifting frame 14. The lifting frame 14 moves up to release the limit of the bag body. At this time, the bag body slides out of the sliding frame 12 along the drooping hinge plate 23, completing the unloading.

[0059] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A double-sealing vacuum sealing machine, comprising a first workbench (1), characterized in that: A transmission motor (3) is installed on the outer wall of the first workbench (1), and a first toothed pulley (5) is fixed to the output end of the transmission motor (3), and a toothed belt (6) is meshed on the outer wall of the first toothed pulley (5), and a second toothed pulley (101) is meshed on the inner wall of the toothed belt (6), and the second toothed pulley (101) rotates on the outer wall of the first workbench (1), and a rotating belt (7) is fixed on the outer wall of the toothed belt (6), and a first sliding groove (8) is provided on the outer wall of the rotating belt (7), and a first guide rod (9) is fixed on the inner wall of the first sliding groove (8), and a first slider (11) is slidably provided on the outer wall of the first guide rod (9), and a first spring (10) is fixed on the outer wall of the first slider (11), and one end of the first spring (10) is fixed to the inner wall of the first sliding groove (8); A sliding frame (12) is fixed to the outer wall of the first slider (11), a second inclined surface (121) is provided on the inner wall of the sliding frame (12), a hinge plate (23) is hinged to the inner wall of the sliding frame (12), a second sliding groove (13) is provided on the outer wall of the first workbench (1), a lifting frame (14) is slidably provided on the inner wall of the second sliding groove (13), two second sliders (16) are slidably provided on the outer wall of the lifting frame (14), a second spring (15) is sleeved on the outer wall of the lifting frame (14), and the second spring (15) is fixed to the outer wall of the rotating belt (7); A third guide rod (25) is slidably provided on the inner wall of the rotating belt (7), a third ball (27) is rotatably provided on one end of the third guide rod (25), a second ball (26) is rotatably provided on the other end of the third guide rod (25), the third ball (27) abuts against the outer wall of the hinge plate (23), a fixed plate (51) is fixed on the outer wall of the first workbench (1), and an ascending inclined surface (52) is provided on the outer wall of the fixed plate (51); The outer wall of the first workbench (1) is further provided with a groove (47), and the notch of the groove (47) is provided with two arc surfaces (48); A first abutment block (19) is fixed to the outer wall of the first sliding block (11), and a fourth guide rod (21) is fixed to the outer wall of the lifting frame (14).

2. A double-sealing vacuum sealing machine according to claim 1, characterized in that: A fourth ball (22) is rotatably provided at the end of the fourth guide rod (21), and a first protrusion (49) and a second protrusion (50) are fixed to the outer wall of the first workbench (1), wherein the ends of the first protrusion (49) and the second protrusion (50) are both hemispherically provided.

3. The double-sealing vacuum sealing machine according to claim 2, characterized in that: A guide groove (24) is formed on the outer wall of the hinge plate (23), a through groove (161) is formed on the outer wall of the second slider (16), a fourth spring (162) is fixed to the inner wall of the through groove (161), a second guide rod (17) is fixed to one end of the fourth spring (162), a first ball (18) is rotatably provided at the end of the second guide rod (17), and the first ball (18) slides in the guide groove (24).

4. The double-sealing vacuum sealing machine according to claim 3, characterized in that: The outer wall of the first interference block (19) is provided with a first inclined surface (20), the outer wall of the first workbench (1) is fixed with a second workbench (291), the outer wall of the second workbench (291) is fixed with a fourth interference block (43), the outer wall of the fourth interference block (43) is provided with a fifth inclined surface (44), the outer wall of the second workbench (291) is further fixed with a fifth interference block (45), and the outer wall of the fifth interference block (45) is provided with a sixth inclined surface (46).

5. The double-sealing vacuum sealing machine according to claim 4, characterized in that: A plurality of evenly distributed third conflicting blocks (41) are fixed to the outer wall of the rotating belt (7), and a fourth inclined surface (42) is formed on the outer wall of the third conflicting blocks (41); The inner wall of the second workbench (291) is provided with a transverse plate (37), the inner wall of the second workbench (291) is fixed with a guide rod (36), the transverse plate (37) is slidably sleeved on the outer wall of the guide rod (36), and two transverse plates (37) are provided.

6. The double-sealing vacuum sealing machine according to claim 5, characterized in that: A resistance heat fuse (38) is also installed on the inner wall of the second workbench (291), a second abutment block (39) is fixed on the outer wall of the transverse plate (37), and a third inclined surface (40) is provided on the outer wall of the second abutment block (39).

7. The double-sealing vacuum sealing machine according to claim 6, characterized in that: A second conveyor belt (28) and a third conveyor belt (29) are installed on the inner wall of the second workbench (291); An air pump (30) is installed on the outer wall of the second workbench (291), a connecting pipe (31) is fixed to the air extraction end of the air pump (30), one end of the connecting pipe (31) is connected to a third slider (32), a third slide groove (33) is opened on the outer wall of the second workbench (291), the third slider (32) slides on the inner wall of the third slide groove (33), and the outer wall of the third slider (32) is connected to a flat air extraction pipe (35).

8. The double-sealing vacuum sealing machine according to claim 7, characterized in that: A third spring (34) is fixed to the outer wall of the third sliding block (32), and one end of the third spring (34) is fixed to the outer wall of the second workbench (291).

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