CN110745277A

CN110745277A - Vacuum sealing mechanism and betel nut packaging machine comprising same

Info

Publication number: CN110745277A
Application number: CN201911199196.0A
Authority: CN
Inventors: 朱广平; 费岳湘; 邓志辉; 毛锦鹏; 刘仕基
Original assignee: Hunan Dongxiang Intelligent Equipment Co Ltd
Current assignee: Hunan Dongxiang Intelligent Equipment Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-04

Abstract

The invention relates to a vacuum sealing mechanism in the technical field of raw material packaging at the rear end of a food and medicine packaging machine, and an areca nut packaging machine comprising the vacuum sealing mechanism, wherein the vacuum sealing mechanism comprises a vacuum sealing chamber (1) and a sealing device (2), the vacuum sealing chamber (1) is communicated with a vacuum generator, the vacuum sealing chamber (1) is internally provided with the sealing device (2), a prepressing device (3) and a bag receiving box (4) from top to bottom in sequence, the cross section of the bag receiving box (4) is similar to the maximum cross section of a package to be sealed, the package to be sealed falls into the bag receiving box (4), the package cover faces the prepressing device (3), the top opening position of the package cover is positioned at the sealing position of the sealing device (2), and the clamping position of the prepressing device (3) is positioned at the upper end of the package bag and below the sealing; the invention has good heat sealing effect and high working efficiency and reduces the potential safety hazard.

Description

Vacuum sealing mechanism and betel nut packaging machine comprising same

Technical Field

The invention belongs to the technical field of raw material packaging at the rear end of a food and medicine packaging machine, and particularly relates to a vacuum sealing mechanism and an areca nut packaging machine comprising the same.

Background

In the industrial production of betel nuts, the sealing operation process of the existing vacuum sealing machine is basically as follows: firstly, manually placing a packaging bag filled with betel nuts to a preset position according to specified requirements, namely ensuring that one end of the packaging bag needing to be sealed is just positioned on a heat sealing position of a sealing device, then closing a vacuum sealed chamber, starting the sealing device for heat sealing after vacuum extraction is finished, releasing pressure after heat sealing is finished, and manually taking out the sealed packaged betel nuts. Such vacuum sealing has several disadvantages: 1. the to-be-sealed package needs to be placed and positioned according to the specified requirements and manually taken and placed, so that time and efficiency are wasted, and potential safety hazards of workers are caused; 2. because the work flow is vacuum pumping first and then heat sealing, the packaging bag is easy to deform in the vacuum pumping process, thereby influencing the subsequent heat sealing effect, and because the appearance of the packaging bag after vacuum pumping is uncontrollable, the packaging attractiveness is influenced.

Disclosure of Invention

In order to solve the problems of poor heat sealing effect, slow manual picking and placing efficiency and potential safety hazard in the prior art, the invention provides a vacuum sealing mechanism.

The vacuum sealing mechanism comprises a vacuum sealing chamber and a sealing device, wherein the vacuum sealing chamber is communicated with a vacuum generator, the vacuum sealing chamber is internally provided with the sealing device, a prepressing device and a bag receiving box in sequence from top to bottom, the cross section of the bag receiving box is similar to the maximum cross section of a package to be sealed, the package to be sealed falls into the bag receiving box, the package cover faces the prepressing device, the top opening position of the package cover is positioned at the sealing position of the sealing device, and the clamping position of the prepressing device is positioned at the upper end of the package bag and below the sealing position.

Furthermore, the sealing device and the pre-pressing device are in bilateral symmetry structures, the symmetry center planes of the sealing device and the pre-pressing device are the same and consistent, the center of the bag receiving box is located on the symmetry center plane, the vacuum sealing chamber is composed of a left sealing chamber and a right sealing chamber, and the left sealing chamber and the right sealing chamber are movably connected and can be mutually embedded.

Further, one side of the symmetry center plane of pre-compaction device includes that cylinder, wedge, left side pull clamp plate, right side pull clamp plate, be connected with the push pedal on the piston rod of cylinder, the left side is pulled clamp plate and right side and is pulled clamp plate sliding connection, and equal fixedly connected with wedge on it, the wedge distributes the push pedal both sides, is close to one side of push pedal all is equipped with the inclined plane, still is connected with return spring between two wedges, the push pedal is through the extrusion the inclined plane and drive the left side pull clamp plate left, right side and pull the clamp plate and move right.

Further, the left side is drawn the clamp plate package rubbing board body, the plate body is kept away from one side equipartition of wedge is equipped with the lug, the right side is drawn the clamp plate and is close to one side that the clamp plate was drawn to the left side also equipartition is equipped with the arch, the lug with protruding crisscross each other and the clearance of motion still exists each other.

Further, the pre-pressing device is adjustably connected to the vacuum sealing chamber.

Further, the cylinder is the multi-stroke cylinder, during the first stroke, the push pedal through with the inclined plane counterbalance promotion of wedge the left side draw the clamp plate with the right side draws the clamp plate motion, during the second stroke, the cylinder promotes the closing device of this side and draws close to the center.

Furthermore, the bottom plate of the bag receiving box is rotatably connected with the vacuum sealing chamber through a rotating shaft.

According to the above innovation, a betel nut packing machine is provided, which comprises any one of the above vacuum sealing mechanisms, and is used for vacuum packing of single betel nuts.

The invention has the beneficial effects that:

1. through the indoor from last closing device down of vacuum seal, the pre-compaction device, connect the ingenious setting of bag box, in operation, after waiting to seal the packing and fall into and connect the bag box, the vacuum seal room is sealed, it is earlier dragged by the pre-compaction device pre-compaction and to the both sides of package cover to wait to seal the packing, make the opening part of waiting to seal the packing realize preliminary fitting, keep the pressfitting and control and pull the evacuation under the prerequisite of power, wait like this to seal the pressfitting of packing and pull the top non-deformable of department, thereby improved the effect of sealing of the wrapping bag department and sealed pleasing to the eye degree.

2. Through the similar design of the maximum cross section of the bag receiving box and the package to be sealed, the package to be sealed falling from the upper part can be well limited in a certain moving range and is easily adjusted by a pre-pressing device, so that the time for placing the package according to the specified requirements is reduced, and the operation efficiency is improved.

3. Through the matching design of the push plate and the wedge-shaped block, the prepressing device is completely synchronous when the package to be sealed is pulled leftwards and rightwards, so that the pressing and pulling effects of the invention are improved, and the heat sealing effect of the invention is further improved.

4. Through the automatic opening design of sealing device, pre-compaction device, the ingenious arrangement that connects the bag box and connect the bag box bottom plate from last to down in the vacuum seal chamber for need not to go into the vacuum seal chamber when putting the material, automatic blanking when getting the material has reduced the potential safety hazard and has promoted the operating efficiency because of automatic blanking.

Drawings

FIG. 1 is a front view of a preferred embodiment of the vacuum sealing mechanism of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is an isometric view of fig. 1.

Fig. 4 is a schematic view of an embodiment of the prepressing apparatus of the present invention.

Fig. 5 is a front view of fig. 4.

Fig. 6 is a sectional view taken along line a-a of fig. 5.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 3, the vacuum sealing mechanism of the present invention includes a vacuum sealing chamber 1, the vacuum sealing chamber 1 is connected to a vacuum generator through a connecting pipe 101, the vacuum sealing chamber 1 is internally provided with a sealing device 2, a prepressing device 3 and a bag receiving box 4 from top to bottom in sequence, the cross section of the bag receiving box 4 is similar to the maximum cross section of the package to be sealed and is slightly larger than the maximum cross section of the package to be sealed so as to facilitate the falling of the package to be sealed 6, when the package to be sealed falls into the bag receiving box 4, the cover of the package faces the prepressing device 3, the top opening position of the cover is positioned at the sealing position of the sealing device 2, the clamping position of the prepressing device 3 is positioned at the upper end of the package and below the sealing position, therefore, the package 6 to be sealed is clamped and held by the pre-pressing device 3 before being vacuumized and sealed, and the phenomenon that the sealing position is sucked and deformed during vacuum suction to influence the subsequent sealing effect is avoided.

In the embodiment, the vacuum sealing chamber 1 is connected with the bracket 7 through the front end and the rear end, and the middle suspension part is provided with an upper opening and closing door and a lower opening and closing door; the sealing device 2 comprises a heat-sealing hot knife 21, a heat insulation plate 22 and a mounting plate 23, wherein the heat-sealing hot knife 21 is connected with the mounting plate 23 through the heat insulation plate 22, and the front end and the rear end of the mounting plate 23 are in sliding connection with sliding rails 92 penetrating through the left end and the right end of the vacuum sealing chamber 1 through linear sliding sleeves 91 arranged on the mounting plate;

in one embodiment, the pre-pressing device 3 includes a left pressing plate and a right pressing plate, adhesive tapes are respectively embedded at the pressing ends of the two pressing plates, and the adhesive tapes are respectively connected with the left side wall or the right side wall of the vacuum sealing chamber 1 in a sliding manner through a sliding rail sliding block mechanism 9 at the lower end, so that the pre-pressing of the package 6 to be sealed is realized.

In one embodiment, the pre-pressing device 3 and the sealing device 2 are connected to their respective control cylinders.

In one embodiment, the bag receiving box 4 is fixedly connected with the vacuum sealing chamber 1 through a connecting plate 8, a bottom plate 41 of the bag receiving box 4 is a plug-in type bottom plate, and the left side of the bottom plate 41 is movably connected with the vacuum sealing chamber 1 through an air cylinder.

As a preferred technical solution of the present design, the bottom plate 41 of the bag receiving box 4 is rotatably connected to the vacuum sealing chamber 1 through a rotating shaft 5.

Specifically, pivot 5 runs through vacuum seal chamber 1 around both sides and with vacuum seal chamber 1 rotates and is connected, bottom plate 41 welds in pivot 5, the one end of pivot 5 is worn out vacuum seal chamber 1 is connected with rotating electrical machines or swing cylinder 51.

As an optimal technical scheme of this design, closing device 2, pre-compaction device 3 all are bilateral symmetry's structure, and its central plane of symmetry coincides, connect the center that bag box 4 is located on the central plane of symmetry, vacuum seal room 1 comprises left seal room 11 and right seal room 12, left side seal room 11 and right seal room 12 swing joint can gomphosis each other, and gomphosis department is equipped with sealed glue.

In this embodiment, the left sealing chamber 11 and the right sealing chamber 12 are movably connected to each other through a pulling cylinder assembly 10, specifically, the pulling cylinder assembly 10 includes a cylinder, a left fixing plate and a right fixing plate, the left fixing plate is fixed to the left sealing chamber 11 on one side of the closed position by a bolt, the right fixing plate is fixed to the right sealing chamber 12 on the other side of the closed position by a bolt, one end of the cylinder is connected to the left fixing plate, and the other end of the cylinder is connected to the right fixing plate.

As a preferred technical solution of this design, as shown in fig. 2 and fig. 3 to fig. 6, one side of the symmetric center plane of the pre-pressing device 3 includes a cylinder 31, a wedge 33, a left side pulling and pressing plate 34, a right side pulling and pressing plate 35, the fixed end of the cylinder 31 is fixed on the sidewall of the vacuum sealing chamber 1, the piston rod thereof penetrates into the vacuum sealing chamber 1 and is connected with a push plate 32, the left side pulling and pressing plate 34 and the right side pulling and pressing plate 35 are slidably connected through a sliding rail and sliding block mechanism 9, the left side pulling and pressing plate 34 and the right side pulling and pressing plate 35 are both fixedly connected with the wedge 33, the wedge 33 is distributed on both sides of the push plate 32 and near one side of the push plate 32 and is provided with an inclined plane 331, a return spring (not shown in the figure) is further connected between the two wedges 33, the push plate 32 drives the left side pulling and pressing plate 34 and the right side pulling and pressing plate 35 to move leftwards by, and the method is not common pressing, so that the application range is wider.

Specifically, the left side pulling and pressing plate 34 is uniformly provided with a convex block 341 on one side away from the wedge block 33, the right side pulling and pressing plate 35 is also uniformly provided with a convex block 351 on one side close to the left side pulling and pressing plate 34, and the convex block 341 and the convex block 351 are mutually staggered and have a moving gap.

In some embodiments, the left side pulling and pressing plate 34 and the right side pulling and pressing plate 35 are respectively connected to different control cylinders, but the synchronization effect of the transmission by using the mechanical wedge structure through the same control cylinder is not good.

As a preferred technical solution of the present design, threaded holes are formed in both sides of the protrusion 341 and the protrusion 351 away from the wedge-shaped block 33, and a spring pre-pressing device 36 is connected to the threaded holes in a threaded manner.

Specifically, the prepressing end of the spring prepressing device 36 protrudes out of the heat sealing hot knife 21 of the sealing device 2.

As a preferred technical solution of the present design, the spring pre-pressing device 36 includes a T-shaped sleeve 361 with external threads, a T-shaped ejector rod 362, a rubber head 363, and a pressure spring 364, wherein a T-shaped head end of the T-shaped ejector rod 362 is disposed in the T-shaped sleeve 361 and connected to the pressure spring 364, and the other end of the T-shaped ejector rod extends out of the T-shaped sleeve 361 through the T-shaped head end and is connected to the rubber head 363. In the above design application that the vacuum sealing chamber 1 is divided into the left sealing chamber 11 and the right sealing chamber 12, the pre-pressing device 3 can be slidably connected with the connecting plate 8 through the slide rail and slide block mechanism 9, but cannot be adjusted left and right, as shown in fig. 3, the left side connection mode is shown, or a slide rail and slide block mechanism 9 can be further connected below the connecting plate 8 so as to be movably connected with the vacuum sealing chamber 1, as shown in fig. 3, the right side connection mode is shown, which is convenient for adjustment.

As an optimal technical scheme of this design, cylinder 31 is the double-stroke cylinder, and during the first stroke, push pedal 32 through with the inclined plane 331 of wedge 33 is inconsistent to be promoted the left side draw the clamp plate 34 with the right side draws the clamp plate 35 motion, and when the first stroke finished, the expansion end of cylinder 31 just touched mounting panel 23, during the second stroke, the piston rod end of cylinder 31 promotes thereby sealing device 2 that this side was promoted to the center draw close realization heat-seal of mounting panel 23. Due to the design, mounting holes on each side wall of the vacuum sealing chamber 1 are reduced, the cost is reduced, and the sealing performance of the vacuum sealing chamber 1 is further improved.

Specifically, the vacuum sealing mechanism can be used as a part of an areca nut packaging machine to realize the final vacuumizing heat sealing process of the areca nuts.

When the device is used specifically, a package 6 to be sealed falls into the bag receiving box 4 from the upper part of the opening and closing gap of the left sealing chamber 11 and the right sealing chamber 12, under the control of a central control system such as a PLC, the air cylinder assembly 10 is pulled to work, so that the left sealing chamber 11 and the right sealing chamber 12 are mutually close to each other to be embedded to form a sealing space, meanwhile, the prepressing devices 3 at the left side and the right side, namely the spring prepressing devices 36 are also driven to be close to each other to form primary contact and extrusion of the package 6 to be sealed, further, the double-stroke air cylinders 31 at the two sides run for a first working stroke, the push plate 32 pushes towards the center, the left side pull plate 34 is pushed to push the spring prepressing devices 36 thereon to the left by being in contact with the inclined plane 331 of the wedge block 33, the right side pull plate 35 drives the spring prepressing devices 36 thereon to move rightwards, thereby pulling the open package to the two sides thereof and completing the primary, then, the vacuum sealing chamber 1 is vacuumized through the connecting pipe 101, then the double-stroke cylinder 31 runs for the second working stroke, the mounting plate 23 is pushed through the top end of the piston rod of the cylinder, the heat-sealing ironing knife 21 is pushed to move inwards to realize heat sealing of a fitting seal of a package 6 to be sealed, after the heat sealing is finished, the double-stroke cylinder 31 is connected with external broken vacuum through an electromagnetic valve, the double-stroke cylinder 31 is restored to the original position, the pulling-closing cylinder assembly 10 is also restored to the original position, the swing cylinder 51 is started to drive the rotating shaft 5 and the bottom plate 41 welded on the rotating shaft to rotate clockwise 90 degrees, packaged food subjected to vacuum heat sealing falls out from the bottom of the bag receiving box 4, and after all the packaged food falls out, the swing cylinder 51 is restored to the original.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a vacuum sealing mechanism, includes vacuum seal chamber (1), closing device (2), vacuum seal chamber (1) intercommunication has the vacuum generator, its characterized in that, from last closing device (2), pre-compaction device (3) to being equipped with in proper order down in vacuum seal chamber (1), connect bag box (4), the cross section that connects bag box (4) is similar with the biggest cross section of waiting to seal the packing, wait to seal the packing and fall into and connect bag box (4) in, its packing front cover orientation pre-compaction device (3), its open-top position is located the department of sealing of closing device (2), the centre gripping department of pre-compaction device (3) is located the wrapping bag upper end, seals under the position.

2. The vacuum sealing mechanism according to claim 1, wherein the sealing device (2) and the pre-pressing device (3) are both in a bilateral symmetry structure, the symmetry center planes of the sealing device and the pre-pressing device coincide, the center of the bag receiving box (4) is located on the symmetry center plane, the vacuum sealing chamber (1) is composed of a left sealing chamber (11) and a right sealing chamber (12), and the left sealing chamber (11) and the right sealing chamber (12) are movably connected and can be mutually embedded.

3. The vacuum sealing mechanism according to claim 2, wherein one side of the symmetric center plane of the pre-pressing device (3) comprises a cylinder (31), a wedge (33), a left side pulling and pressing plate (34) and a right side pulling and pressing plate (35), a push plate (32) is connected to a piston rod of the cylinder (31), the left side pulling and pressing plate (34) and the right side pulling and pressing plate (35) are connected in a sliding manner, the wedge (33) is fixedly connected to the left side pulling and pressing plate and the right side pulling and pressing plate, the wedge (33) is distributed on two sides of the push plate (32) and close to one side of the push plate (32) and is provided with an inclined plane (331), a return spring is further connected between the two wedge (33), and the push plate (32) drives the left side pulling and pressing plate (34) to move to the left and right sides pulling and pressing plate (35) through extrusion the inclined.

4. The vacuum sealing mechanism according to claim 3, wherein a protrusion (341) is uniformly distributed on one side of the left side pulling and pressing plate (34) far away from the wedge-shaped block (33), a protrusion (351) is uniformly distributed on one side of the right side pulling and pressing plate (35) near the left side pulling and pressing plate (34), and the protrusion (341) and the protrusion (351) are staggered with each other and have a moving gap.

5. The vacuum sealing mechanism according to claim 4, wherein the projection (341) and the protrusion (351) are provided with threaded holes on the side away from the wedge block (33), and the threaded holes are in threaded connection with a spring preloading device (36).

6. The vacuum sealing mechanism according to claim 5, wherein the spring preloading device (36) comprises a T-shaped sleeve (361) with external threads, a T-shaped ejector rod (362), a rubber head (363), and a compression spring (364), wherein the T-shaped head end of the T-shaped ejector rod (362) is arranged in the T-shaped sleeve (361) and connected with the compression spring (364), and the other end of the T-shaped ejector rod extends out of the T-shaped sleeve (361) through the T-shaped head end and is connected with the rubber head (363).

7. A vacuum sealing mechanism according to claim 6, characterized in that the pre-pressing device (3) is adjustably connected to the vacuum sealing chamber (1).

8. The vacuum sealing mechanism according to any one of claims 3 to 7, wherein the air cylinder (31) is a double-stroke air cylinder, the push plate (32) pushes the left side pulling and pressing plate (34) and the right side pulling and pressing plate (35) to move by abutting against the inclined surface (331) of the wedge-shaped block (33) in the first stroke, and the air cylinder (31) pushes the sealing device (2) on the side to move towards the center in the second stroke.

9. A vacuum sealing mechanism according to any one of claims 1 to 7, characterized in that the bottom plate (41) of the bag receiving box (4) is rotatably connected with the vacuum sealing chamber (1) through a rotating shaft (5).

10. A betel nut wrapping machine comprising the vacuum sealing mechanism of claim 9.