A continuous vacuum sealing machine

Abstract

The present invention relates to a continuous vacuum sealer, comprising a bracket and a shell mounted on the bracket, wherein two mutually symmetrical clamping moving mechanisms are arranged in the shell, wherein the clamping moving mechanism comprises a rotatable first belt, a vertical fixed plate is arranged outside the first belt, a first nylon sheet is fixedly connected to the outer periphery of the first belt, a second nylon sheet is fixedly connected to the outer periphery of the first nylon sheet, a first sealing strip is arranged on the side of the first nylon sheet and the second nylon sheet close to the fixed plate, a second sealing strip is arranged on the side of the first nylon sheet and the second nylon sheet away from the fixed plate, a suction pipe for vacuuming is arranged at the lower part of the clamping moving mechanism, and a sealing device is arranged on one side of the suction pipe. The present invention has good sealing effect, high vacuuming efficiency, can perform continuous vacuuming and sealing, and greatly improves production efficiency.

Description

Technical Field

[0001] The invention relates to the field of packaging machinery and equipment, in particular to a continuous vacuum sealing machine. Background Art

[0002] At present, vacuum sealers are widely used in the field of food packaging. They put food into packaging bags, extract the gas in the packaging bags, and complete the sealing process in one go after reaching a predetermined vacuum degree. The main function is to remove oxygen and various gases in the air to prevent food from spoiling.

[0003] At present, there are two main ways to vacuum seal food bags in my country. The first is manual vacuum sealing, which requires manual bag placement, manual vacuuming, and manual sealing each time. The manual work intensity is high and the efficiency is low. The second is automatic vacuum sealing. Automatic vacuum sealing is mostly horizontal, but horizontal sealing is not suitable for all food sealing, and vertical sealing is difficult to achieve continuous automatic sealing due to sealing problems. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, a continuous vacuum sealer is proposed to solve the problems mentioned in the above background technology. The invention can realize vacuuming and sealing of vertical food bags.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A continuous vacuum sealer includes a bracket and a shell installed on the bracket, wherein two mutually symmetrical clamping moving mechanisms are arranged in the shell, the clamping moving mechanism includes a rotatable first belt, a vertical fixed plate is arranged outside the first belt, a first nylon sheet is fixedly connected to the outer periphery of the first belt, a second nylon sheet is fixedly connected to the outer periphery of the first nylon sheet, the first nylon sheet and the second nylon sheet rotate synchronously with the first belt, a first sealing strip is arranged on the side of the first nylon sheet and the second nylon sheet close to the fixed plate, and a second sealing strip is arranged on the side of the first nylon sheet and the second nylon sheet away from the fixed plate, a suction pipe for vacuuming is arranged at the lower part of the clamping moving mechanism, and a sealing device is arranged on one side of the suction pipe. The two clamping moving mechanisms are close to each other, the first sealing strip plays a role of sealing the fixed plate and the nylon sheet, and the second sealing strip plays a role of sealing the two nylon sheets, so that a closed space is formed between the two clamping moving mechanisms.

[0007] As a further technical solution of the present invention: the first nylon sheet and the second nylon sheet have the same specifications, the widths of the first nylon sheet and the second nylon sheet are both greater than the width of the first belt, and the first nylon sheet and the second nylon sheet overlap and cover each other and are fixed by colloid.

[0008] As a further technical solution of the present invention: the first belt is driven to rotate by a driving device, the driving device includes a first motor installed on the housing, the output end of the first motor is connected to the transmission shaft, the two ends of the transmission shaft are respectively connected to two second belts, the lower end of the second belt is connected to the first pulley, the first pulley drives the second pulley arranged on one side thereof to rotate coaxially through the transmission shaft, a plurality of static pulleys are arranged on one side of the second pulley, and the first belt is arranged on the second pulley and the static pulley. The first motor rotates to drive the two second belts to rotate through the transmission shaft, the two second belts respectively drive the two first pulleys to rotate, thereby driving the second pulleys to rotate, the second pulley drives the first belt to rotate, thereby driving the two nylon sheets to rotate synchronously.

[0009] As a further technical solution of the present invention: the sealing device comprises a heating block, a rotatable embossed belt is arranged outside the heating block, and the bag opening passes between two embossed belts to heat-seal the bag opening.

[0010] As a further technical solution of the present invention: a connecting plate is provided on the inner side of the heating block, a fixing block is provided on the side of the connecting plate away from the heating block, and a buffer mechanism is provided between the fixing block and the fixing plate.

[0011] As a further technical solution of the present invention: a liftable transmission platform is arranged below the clamping moving mechanism, a vertical slide rail is arranged on the side of the housing close to the transmission platform, and a slider matching the slide rail is arranged on the side of the transmission platform close to the housing. The liftable transmission platform makes the distance between the liftable platform and the clamping moving mechanism adjustable, which is suitable for packaging bags of different specifications.

[0012] As a further technical solution of the present invention: the distance between the two clamping moving mechanisms is adjustable, a cylinder is installed on the bracket, and the telescopic end of the cylinder is connected to the outer side of the fixed plate. The distance between the two clamping moving mechanisms is adjusted by the cylinder, the cylinder is extended, the fixed plate is in close contact with the first sealing strip, and the sealing is achieved; then the two clamping moving mechanisms are pressed tightly, the second sealing strips of the two first nylon sheets are pressed tightly, and the second sealing strips of the two second nylon sheets are pressed tightly, and the sealing is achieved.

[0013] As a further technical solution of the present invention: transverse support blocks are arranged on the inner side surface of the fixed plate close to the upper end and the lower end of the first belt, and the support blocks are fixedly arranged on the fixed plate.

[0014] As a further technical solution of the present invention: the support block, the first belt, the first nylon sheet and the second nylon sheet near the second pulley are arranged obliquely to form an inclined section, and the end of the inclined section near the second pulley is higher than the end away from the second pulley. The bag is put into the bag from the inclined section, and the setting of the inclined section ensures that the bag mouth is flat.

[0015] As a further technical solution of the present invention: a transverse support shaft is arranged between the two clamping and moving mechanisms, and the transverse support shaft penetrates through the two fixing plates and is then installed on the outer shell.

[0016] Beneficial effects of the present invention:

[0017] The present invention realizes sealing by arranging two clamping moving mechanisms, aligning and pressing the second sealing strips of the two first nylon sheets, aligning and pressing the second sealing strips of the two second nylon sheets, forming a closed space between the two clamping moving mechanisms, and double sealing ensures its sealing performance.

[0018] The first belt drives the nylon sheet to rotate, and the nylon sheet and the sealing strip drive the vertical bag to move forward, complete vacuuming in the closed space, and continue to move forward to achieve sealing, which is suitable for sealing vertical bags.

[0019] The invention has good sealing effect and high vacuuming efficiency, can perform continuous vacuuming and sealing, and greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the main structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the present invention after removing a clamping moving mechanism;

[0022] Figure 3 It is a three-dimensional diagram of the main structure of the present invention after removing a clamping and moving mechanism;

[0023] Figure 4 It is a schematic diagram of the main structure of the sealing device;

[0024] Figure 5 It is a schematic diagram of the main structure of the sealing device when sealing;

[0025] Figure 6 The figure is a side view of the main structure of the present invention after removing a clamping and moving mechanism.

[0026] In the figure: 1- bracket, 2- shell, 3- clamping moving mechanism, 31- first belt, 32- fixed plate, 33- first nylon sheet, 34- second nylon sheet, 35- first sealing strip, 36- second sealing strip, 4- suction pipe, 5- sealing device, 51- heating block, 52- embossed belt, 53- connecting plate, 54- fixed block, 55- third pulley, 56- fourth pulley, 57- third motor, 58- first gear, 59- second gear, 6- driving device, 61- first motor, 62- transmission shaft, 63- second belt, 64- first pulley, 65- second pulley, 66- static pulley, 7- transmission platform, 8- slide rail, 9- slider, 10- cylinder, 11- support block, 12- tilting section, 13- transverse support shaft. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1-6 A continuous vacuum sealer includes a bracket 1 and a housing 2 mounted on the bracket 1. Two mutually symmetrical clamping and moving mechanisms 3 are arranged in the housing 2. The clamping and moving mechanisms 3 include a rotatable first belt 31. The first belt 31 is driven to rotate by a driving device 6. The driving device 6 includes a first motor 61 mounted on the housing 2. The output end of the first motor 31 is connected to a transmission shaft 62. Two ends of the transmission shaft 62 are respectively connected to two second belts 63. The two second belts 63 correspond to the two clamping and moving mechanisms 3. The lower end of the second belt 63 is connected to a first pulley 64. The first pulley 64 drives a second pulley 65 arranged on one side thereof to rotate coaxially through the transmission shaft. A plurality of static pulleys 66 are arranged on one side of the second pulley 65. The static pulleys 66 are arranged in an arc shape and are mounted on a fixed plate 32. The first belt 31 is arranged on the second pulley 65 and the static pulley 66. The first motor 61 rotates to drive the transmission shaft 62, thereby driving the two second belts 63 to rotate. The two second belts 63 respectively drive the two first pulleys 64 to rotate. The first pulley 64 drives the two second pulleys 65 to rotate, thereby driving the first belt 31 to rotate, ensuring that the first belts 31 in the two clamping moving mechanisms 3 rotate at the same time and at the same rotation speed.

[0029] A vertical fixing plate 32 is arranged outside the first belt 31. The size of the fixing plate 32 is larger than that of the first belt 31. The fixing plate 32 can cover the entire side of the first belt 31. A first nylon sheet 33 is fixedly connected to the outer periphery of the first belt 31. A second nylon sheet 34 is fixedly connected to the outer periphery of the first nylon sheet 33. The first nylon sheet 33 and the second nylon sheet 34 have the same specifications. The first nylon sheet 33 and the second nylon sheet 34 are completely identical. The second nylon sheet 34 overlaps and covers the first nylon sheet 33 and is fixed by colloid. The first nylon sheet 33 and the second nylon sheet 34 rotate synchronously with the first belt 31.

[0030] The width of the first nylon sheet 33 and the second nylon sheet 34 are both greater than the width of the first belt 31. A first sealing strip 35 is provided on the side of the first nylon sheet 33 and the second nylon sheet 34 close to the fixed plate 32. The first sealing strip 35 is installed on the side of the first nylon sheet 33 and the second nylon sheet 34 close to the fixed plate 32, and is used to achieve sealing between the first nylon sheet 33, the second nylon sheet 34 and the fixed plate 32. Double sealing ensures sealing. The first sealing strip 35 is made of anti-friction material. The fixed plate 32 is stationary. The first nylon sheet 33 and the second nylon sheet 34 rotate synchronously with the first belt 31, and there is friction. The first sealing strip 35 is made of anti-friction material, such as EPDM, or silicone sealing ring, etc., to extend the service life.

[0031] A second sealing strip 36 is provided on the side of the first nylon sheet 33 and the second nylon sheet 34 away from the fixed plate 32. The second sealing strip 36 is installed on the side of the first nylon sheet 33 and the second nylon sheet 34 away from the fixed plate 32. There are two clamping moving mechanisms 3, so there are two first nylon sheets 33 and two second nylon sheets 34. The second sealing strips 36 of the two first nylon sheets 33 are aligned and pressed tightly to achieve sealing, and the second sealing strips 36 of the two second nylon sheets 34 are aligned and pressed tightly to achieve sealing, ensuring that the two clamping moving mechanisms 3 form a closed space. The second sealing strip 36 is made of EPDM or a silicone sealing ring, and has a good sealing effect.

[0032] A suction pipe 4 for vacuuming is arranged at the lower part of the clamping movable mechanism 3. There are one or more suction pipes 4. The suction pipe 4 passes through the fixed plate 32 and extends between the two clamping movable mechanisms 3. The suction pipe 4 is connected to the vacuuming assembly and is used for vacuuming the bag. A sealing ring is installed at the connection between the suction pipe 4 and the fixed plate 32 to ensure sealing and prevent air leakage from there.

[0033] A sealing device 5 is provided on one side of the suction pipe 4. The sealing device 5 is installed at the bottom of the fixed plate 32 and does not rotate with the first belt 31. The sealing device 5 includes a heating block 51. A rotatable embossed belt 52 is provided on the outside of the heating block 51. The bag mouth passes between the two embossed belts 52. The two clamping moving mechanisms 3 have two sealing devices 5. The two clamping moving mechanisms 3 are close to each other, and the two sealing devices 5 are also close to each other. The bag mouth passes between the two embossed belts 52, and heat sealing is achieved by the heating block 51 and the embossed belt 52.

[0034] A connecting plate 53 is provided inside the heating block 51, and a fixing block 54 is provided on a side of the connecting plate 53 away from the heating block 51. The setting of the fixing block 54 and the connecting plate 53 will not affect the rotation of the embossed belt 52. A third pulley 55 and a fourth pulley 56 are provided at both ends of the embossed belt 52, respectively. A third motor 57 is installed above the third pulley 55. The third motor 57 is vertically arranged with the output end facing downward. The third motor 57 is installed on a support. The output end of the third motor 57 is connected to a first gear 58. The first gear 58 is meshed with a second gear 59. The second gear 59 is arranged above the third pulley 55. The second gear 59 coaxially drives the third pulley 55 to rotate.

[0035] The rotation of the third motor 57 drives the first gear 58 to rotate, the rotation of the first gear 58 drives the second gear 59 to rotate, the second gear 59 drives the third pulley 55 to rotate, thereby driving the embossed belt 52 to rotate, and the rotation speed of the two embossed belts 52 is the same as the rotation speed of the first pulley 34. A tensioning device is provided at one end of the fixing block 54 close to the third motor 57, and a buffer mechanism is provided at one side of the fixing block 54 close to the fixing plate 32.

[0036] A lifting and lowering transmission platform 7 is arranged below the clamping moving mechanism 3, a vertical slide rail 8 is arranged on the side of the housing 2 close to the transmission platform 7, and a slider 9 matching with the slide rail 8 is arranged on the side of the transmission platform 7 close to the housing 2. The slider 9 is manually slid along the slide rail 8, so that the distance between the transmission platform 7 and the clamping moving mechanism 3 can be adjusted, which is suitable for packaging bags of different specifications.

[0037] The distance between the two clamping moving mechanisms 3 is adjustable. A cylinder 10 is installed on the bracket 1, and the telescopic end of the cylinder 10 is connected to the outside of the fixed plate 32. The distance between the two clamping moving mechanisms 3 can only be fine-tuned, and the adjustable distance is limited. The number of cylinders 10 arranged on the outside of each fixed plate 32 is one or more. The cylinders 10 of the two fixed plates 32 are extended, and the cylinders 10 are pressed against the fixed plate 32 and pressed against the first sealing strip 35. The distance between the two clamping moving mechanisms 3 is reduced as they continue to move forward. Finally, the second sealing strips 36 of the two first nylon sheets 33 are pressed tightly to achieve sealing, and the second sealing strips 36 of the two second nylon sheets 34 are pressed tightly to achieve sealing, ensuring that the two clamping moving mechanisms 3 form a closed space. Multiple buffer devices are arranged on the outside of the fixed plate 32 to buffer the force brought by the cylinder 10. There is a sealing ring between the buffer device and the fixed plate 32 to ensure sealing.

[0038] The inner side of the fixing plate 32 is provided with a transverse support block 11 near the upper end and the lower end of the first belt 31, and the support block 11 is fixedly arranged on the fixing plate 32. The support block 11, the first belt 31, the first nylon sheet 33 and the second nylon sheet 34 near the second pulley 65 are arranged obliquely to form an inclined section 12, and the end of the inclined section 12 near the second pulley 65 is higher than the end away from the second pulley 65. The bag is put into the bag from the inclined section 12, and the setting of the inclined section 12 ensures that the bag mouth remains flat when entering the sealing device 5.

[0039] A transverse support shaft 13 is arranged between the two clamping moving mechanisms 3, and the transverse support shaft 13 penetrates through the two fixing plates 32 and is then installed on the housing 2. The transverse support shaft 13 plays a role in supporting the clamping moving mechanism 3. The number of the transverse support shaft 13 is one or more. To ensure sealing, a sealing mechanism, such as a mechanical seal, is arranged between the transverse support shaft 13 and the fixing plate 32 to ensure sealing between the two clamping moving mechanisms 3.

[0040] Specific implementation method of the present invention:

[0041] When in use, according to the size of different packaging bags, the slider 9 is manually slid along the slide rail 8 so that the distance between the transmission platform 7 and the clamping moving mechanism 3 is adjusted to a suitable distance to be suitable for packaging bags of different specifications.

[0042] The cylinder 10 of the two fixed plates 32 is extended, and the cylinder 10 is pressed against the fixed plates 32 and tightly against the first sealing strip 35, so that a seal is formed between the fixed plates 32 and the nylon sheet. Continuing forward, the distance between the two clamping moving mechanisms 3 becomes smaller, and finally, the second sealing strips 36 of the two first nylon sheets 33 are pressed tightly to achieve sealing, and the second sealing strips 36 of the two second nylon sheets 34 are pressed tightly to achieve sealing. The double sealing method ensures that a closed space is formed between the two clamping moving mechanisms 3.

[0043] The first motor 61 rotates to drive the transmission shaft 62, thereby driving the two second belts 63 to rotate, the two second belts 63 respectively drive the two first belt pulleys 64 to rotate, the first belt pulley 64 drives the two second belt pulleys 65 to rotate, thereby driving the first belt 31 to rotate, ensuring that the first belts 31 in the two clamping moving mechanisms 3 rotate at the same time and at the same speed. At this time, the embossed belts 52 of the two sealing devices 5 are close to each other.

[0044] The first nylon sheets 33 and the second nylon sheets 34 of the two clamping moving mechanisms 3 rotate synchronously with the first belt 31. The bag is put into the inclined section 12, and the bag opening is located between the two first nylon sheets 33 and the two second nylon sheets 34, and is driven to rotate by the two first nylon sheets 33 and the two second nylon sheets 34. The suction pipe 4 works, and the bag opening moves while vacuuming.

[0045] The rotation speed of the two embossed belts 52 is the same as that of the nylon sheet. The bag mouth passes between the two embossed belts 52 and is heat-sealed by the heating block 51 and the embossed belts 52. The sealing is completed.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A continuous vacuum sealer, comprising a support (1) and a housing (2) mounted on the support (1), characterized in that: Two mutually symmetrical clamping and moving mechanisms (3) are arranged in the housing (2). The clamping and moving mechanisms (3) include a rotatable first belt (31). The first belt (31) is driven to rotate by a driving device (6). The driving device (6) includes a first motor (61) mounted on the housing (2). The output end of the first motor (61) is connected to a transmission shaft (62). Two ends of the transmission shaft (62) are respectively connected to two second belts (63). The lower end of the second belt (63) is connected to a first pulley (64). The first pulley (64) drives a second pulley (65) arranged on one side thereof to rotate coaxially with the transmission shaft. One side of the second pulley (65) is provided with a A plurality of stationary pulleys (66) are arranged, the first belt (31) is arranged on the second belt pulley (65) and the stationary pulley (66), a vertical fixed plate (32) is arranged outside the first belt (31), a first nylon sheet (33) is fixedly connected to the outer periphery of the first belt (31), the outer periphery of the first nylon sheet (33) is fixedly connected to the second nylon sheet (34), the first nylon sheet (33) and the second nylon sheet (34) rotate synchronously with the first belt (31), a first sealing strip (35) is arranged on one side of the first nylon sheet (33) and the second nylon sheet (34) close to the fixed plate (32), and a first sealing strip (35) is arranged on one side of the first nylon sheet (33) and the second nylon sheet (34) away from the fixed plate (32). A second sealing strip (36) is arranged on the side of the clamping movable mechanism (3); a suction pipe (4) for vacuuming is arranged at the lower part of the clamping movable mechanism (3); a sealing device (5) is arranged on one side of the suction pipe (4); the sealing device (5) comprises a heating block (51); a rotatable embossed belt (52) is arranged on the outer side of the heating block (51); the bag mouth passes between the two embossed belts (52); a connecting plate (53) is arranged on the inner side of the heating block (51); a fixed block (54) is arranged on the side of the connecting plate (53) away from the heating block (51); a buffer mechanism is arranged between the fixed block (54) and the fixed plate (32); a liftable transmission platform (7) is arranged below the clamping movable mechanism (3); A vertical slide rail (8) is arranged on one side of the housing (2) close to the transmission platform (7), a slider (9) matched with the slide rail (8) is arranged on one side of the transmission platform (7) close to the housing (2), the distance between the two clamping moving mechanisms (3) is adjustable, a cylinder (10) is installed on the bracket (1), the telescopic end of the cylinder (10) is connected to the outside of the fixed plate (32), the support block (11) close to the second pulley (65), the first belt (31), the first nylon sheet (33) and the second nylon sheet (34) are arranged obliquely to form an inclined section (12), and one end of the inclined section (12) close to the second pulley (65) is higher than the other end away from the second pulley (65).

2. A continuous vacuum sealer according to claim 1, characterized in that: The first nylon sheet (33) and the second nylon sheet (34) have the same specifications, and the widths of the first nylon sheet (33) and the second nylon sheet (34) are both greater than the width of the first belt (31).

3. A continuous vacuum sealer according to claim 1, characterized in that: Transverse support blocks (11) are arranged on the inner side surface of the fixed plate (32) near the upper end and the lower end of the first belt (31), and the support blocks (11) are fixedly arranged on the fixed plate (32).

4. A continuous vacuum sealer according to claim 1, characterized in that: A transverse support shaft (13) is arranged between the two clamping moving mechanisms (3), and the transverse support shaft (13) is installed on the housing (2) after passing through the two fixing plates (32).

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