Packaging bag opening cooling mechanism

Abstract

The utility model discloses a packaging bag opening cooling mechanism which comprises a frame, a cooling cover plate and a cooling pressing plate, the cooling cover plate and the cooling pressing plate are arranged below the frame, the cooling pressing plate is rotatably connected below the frame through a driving device, and the driving device is used for driving the cooling pressing plate to swing below the frame in the direction of the cooling cover plate. The side, away from the cooling pressing plate, of the cooling cover plate is detachably connected with a cooling nylon plate located below the frame, the side, close to the cooling cover plate, of the cooling nylon plate is provided with a groove extending towards the interior of the cooling nylon plate, and an air pipe connector is installed in the groove. The air pipe connector is connected with a cold air input device used for supplying compressed cold air. According to the cooling mechanism, the flattening function and the cooling function are integrated, the size is smaller, the cost is lower, the attractiveness of the appearance of the packaging bag is guaranteed, and the cooling effect of the opening of the packaging bag is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing equipment technical field, especially a kind of packing bag mouth cooling mechanism. BACKGROUND

[0002] The packaging of products is an essential process in industrial production, which mainly involves sealing the mouths of various bags such as plastic bags, paper bags, woven bags, cloth bags, and composite bags. To ensure the quality of the seal, cooling treatment is required after the heat sealing of the bag mouths.

[0003] Currently, there are many structural design schemes for cooling treatment of the bag mouths, which can be mainly divided into three types:

[0004] (1) Directly blowing compressed air onto the bag mouths. When the bag mouths reach the cooling station after heat sealing, multiple air outlets are used to blow compressed air simultaneously to reduce the temperature of the bag mouths, as disclosed in CN202322624885.X. However, this structure design scheme has the following problems: the compressed air is directly blown onto several points of the bag mouths, and the uneven distribution of the air flow can cause the bag mouths to be uneven, affecting the appearance.

[0005] (2) Using flat plates to press against each other. One of the two flat steel plates is movable, and when the bag mouths enter the cooling station, the two plates press against each other, as disclosed in CN201521040049.6. However, this structure design scheme has the following problems: although the two flat steel plates can make the bag mouths flat and achieve the effect of flattening, the cooling of the bag mouths is only achieved by the temperature of the steel plates themselves, and the temperature difference between the steel plates and the room temperature is small, which cannot effectively reduce the temperature of the bag mouths, resulting in poor cooling effect and low cooling efficiency.

[0006] (3) Using a combination of flat steel plates and polytetrafluoroethylene cloth. The polytetrafluoroethylene cloth is fixed, and a rotatable flat steel plate is designed to press against the polytetrafluoroethylene cloth. When working, the flat steel plate rotates to press the heat-sealed bag mouths between the flat steel plate and the polytetrafluoroethylene cloth. Although this scheme uses a combination of rigid and flexible surfaces to achieve the effect of flattening the bag mouths and reduces the installation requirements, it still cannot effectively reduce the temperature of the bag mouths after a long period of work, resulting in unsatisfactory cooling effect.

[0007] Therefore, there is an urgent need to provide a cooling structure that combines the functions of flattening and cooling the bag mouths to solve the problems existing in the prior art. SUMMARY

[0008] The utility model solves the technical problem that the utility model overcomes the insufficient of prior art, provides a packing bag mouth cooling mechanism that has good cooling effect and also has the function of flattening.

[0009] The utility model adopts the technical scheme that a packing bag mouth cooling mechanism, including frame and the cooling cover plate and cooling pressboard that are located in the frame below, cooling pressboard is rotatablely connected in the frame below through drive arrangement, drive arrangement is used for driving cooling pressboard swings in the direction of cooling cover plate below the frame, realizes the mutual approach or away of cooling pressboard and cooling cover plate, the side of cooling cover plate away from cooling pressboard is detachably connected with the cooling nylon board that is located in the frame below, the side of cooling nylon board close to cooling cover plate is equipped with the recess that extends to its inside, install air pipe joint in the recess, air pipe joint is connected with the cold gas input device for supplying compressed cold gas.

[0010] Further, the drive device includes a first drive mechanism, a second drive mechanism, and a first connecting plate for connecting the first drive mechanism and the second drive mechanism, and the first connecting plate is connected with the cooling pressboard through a connecting assembly.

[0011] Further, the first drive mechanism includes a rotating shaft, a cylinder, a first rotary connecting piece, and a second rotary connecting piece, the rotating shaft penetrates and is rotatably connected to the inside of the frame, the first rotary connecting piece is installed on the shaft body in the frame, and the two ends of the rotating shaft extend to the upper part of the second rotary connecting piece outside the frame, the lower part of the second rotary connecting piece is rotatably connected with the first connecting plate, the cylinder is located above the frame, the driving end of the piston rod of the cylinder is connected with the upper part of the first rotary connecting piece through a cylinder joint bearing, the first rotary connecting piece is driven to rotate through the extension and contraction movement of the piston rod, and then the rotating shaft, the second rotary connecting piece, and the first connecting plate are sequentially swung.

[0012] Further, the first rotary connecting piece includes a first rotary connecting plate and a first locking block detachably connected to the lower part of the first rotary connecting plate, the end faces connected with the first rotary connecting plate and the second locking block are both provided with installation grooves extending to the inside of the first rotary connecting plate and the second locking block, the installation grooves of the first rotary connecting plate and the second locking block are butted to form a clamping groove for penetrating the rotating shaft, one end of the cylinder joint bearing is connected with the piston rod, and the other end is hinged with the upper part of the first rotary connecting plate.

[0013] Further, the second rotating connecting piece comprises a second rotating connecting plate and a second locking block detachably connected with the second rotating connecting plate, the second rotating connecting plate and the second locking block are oppositely installed at one end of the rotating shaft extending out of the frame, and a first blocking ring is connected to the side of the second rotating connecting plate and the second locking block away from the frame, and the first blocking ring is connected with the one end of the rotating shaft extending out of the frame through bolts.

[0014] Further, the lower part of the second rotating connecting plate is provided with a through hole, a pin shaft is transversely arranged in the through hole, one end of the pin shaft is located in the through hole, the other end of the pin shaft passes through the first connecting plate and is detachably connected with the side of the first connecting plate away from the second rotating connecting plate, and a pin shaft joint bearing and a second blocking ring are arranged on the shaft body of the pin shaft located in the through hole, and the outer ring of the pin shaft joint bearing is embedded in the through hole.

[0015] Further, the second driving mechanism comprises a pair of connecting rods and connecting rod joint bearings arranged at the two ends of the connecting rods, the top of the connecting rod joint bearing located at the upper end of the connecting rod is hinged to the outer side wall of the frame, and the bottom of the connecting rod joint bearing located at the lower end of the connecting rod is hinged to the first connecting plate.

[0016] Further, the connecting assembly comprises a second connecting plate and a rubber pad, the second connecting plate is detachably arranged on the side of the cooling pressing plate away from the cooling cover plate, the rubber pad is arranged between the cooling pressing plate and the second connecting plate, and the side wall of the second connecting plate is connected with the first connecting plate through bolts.

[0017] Further, the cold gas input device comprises a vortex tube and a support connected with the side wall of the frame, the vortex tube is detachably connected with the support, the vortex tube is located below the frame and is parallel to the cooling cover plate, the air inlet of the vortex tube is connected with the cold gas storage tank, and the air outlet of the vortex tube is connected with the air pipe joint.

[0018] Further, the top of the frame is detachably provided with a mounting rack, and the top of the mounting rack is detachably provided with an adjusting plate.

[0019] The packaging bag mouth cooling mechanism has the advantages that:

[0020] (1) The packaging bag mouth cooling mechanism has the advantages that: the cooling nylon plate is arranged, a groove extending into the cooling nylon plate and capable of inputting compressed cold air is arranged on the side of the cooling nylon plate close to the cooling cover plate, the compressed cold air is continuously input into the groove through the air pipe joint connected with the groove to continuously cool the cooling nylon plate and the cooling cover plate, the temperature of the cooling nylon plate and the cooling cover plate is continuously reduced, the purpose of cooling the bag mouth is achieved, and the cooling effect of the bag mouth is improved.

[0021] (2) When the cooling mechanism of this utility model cools the bag opening, the bag opening is always flatly pressed between the cooling plate and the cooling cover plate. When the compressed cold air is used to cool the cooling nylon plate, the temperature of the entire cooling nylon plate and the cooling cover plate is reduced, so that the bag opening can be uniformly cooled, thus improving the cooling efficiency. This cooling mechanism can make the packaging bag opening that has just been heat-sealed flat while reducing the bag opening temperature to the ambient temperature or below, realizing the combination of flatness and cooling functions, making the size smaller, the cost lower, and also ensuring the aesthetic appearance of the packaging bag. Attached Figure Description

[0022] Figure 1 —A three-dimensional structural diagram of a packaging bag opening cooling mechanism when the cylinder extends (cylinder extends);

[0023] Figure 2 —A three-dimensional structural diagram of the cooling mechanism at the opening of the packaging bag when the cylinder retracts (cylinder retraction);

[0024] Figure 3 -for Figure 1 Right view of the cylinder when it is extended (with the mounting bracket and adjustment plate removed);

[0025] Figure 4 -for Figure 3 Cross-sectional view at point AA;

[0026] Figure 5 -for Figure 1 Right view of the cylinder when it retracts (with the mounting bracket and adjustment plate removed);

[0027] Figure 6 -for Figure 1 Rear view;

[0028] Figure 7 —A diagram showing the working state of the heat-sealed packaging bag as it moves to the cooling mechanism;

[0029] Figure 8 —This is a diagram showing the working state of the heat-sealed packaging bag after it has been pressed down by the cooling plate and cooling cover.

[0030] The above reference numerals: 1-frame, 2-cooling cover plate, 3-cooling pressing plate, 4-mounting frame, 5-adjusting plate, 6-cooling nylon plate, 7-mounting seat, 8-vortex tube, 9-bracket, 10-first connecting plate, 11-second connecting plate, 12-rubber pad, 13-rotary shaft, 14-cylinder, 15-deep groove ball bearing, 16-first rotating connecting plate, 17-first locking block, 18-cylinder mounting block, 19-piston rod, 20-cylinder joint bearing, 21-second rotating connecting plate, 22-second locking block, 23-first blocking ring, 24-pivot, 25-connecting rod, 26-connecting rod joint bearing, 27-pivot joint bearing, 28-second blocking ring, 29-clamping groove, 30-groove, 31-platform crossbeam, 32-packaging bag. DETAILED DESCRIPTION

[0031] The utility model will be further explained in connection with the drawings and examples, but these specific implementation solutions do not limit the protection scope of the utility model in any way.

[0032] Example 1

[0033] Reference Figures 1-6 A packaging bag 32 cooling mechanism, including frame 1 and the cooling cover plate 2 and the cooling pressing plate 3 arranged below frame 1, the top of the frame 1 both sides is installed with a pair of mounting frames 4 through bolt symmetry, the top of each mounting frame 4 is installed with adjusting plate 5 through bolt, and the cooling mechanism is connected with the platform crossbeam 31 through mounting frame 4.

[0034] The cooling pressing plate 3 is rotatably connected below the frame 1 by a driving device, the driving device is used to drive the cooling pressing plate 3 to swing below the frame 1 along the direction of the cooling cover plate 2, realize the mutual approach or away of the cooling pressing plate 3 and the cooling cover plate 2, the cooling cover plate 2 is vertically fixed below the frame 1, and the side away from the cooling pressing plate 3 is connected with the cooling nylon plate 6 below the frame 1 by bolt, the bottom rear side of the frame 1 is vertically installed with the mounting seat 7, the front side wall of the mounting seat 7 is provided with a connecting groove, the cooling nylon plate 6 is vertically fixed in the connecting groove of the mounting seat 7 by bolt, and the side of the cooling nylon plate 6 close to the cooling cover plate 2 is provided with a groove 30 extending to its interior, a gas pipe joint is installed in the groove 30, and the gas pipe joint is connected with a cold gas input device for supplying compressed cold gas.

[0035] The cold gas input device includes a vortex tube 8 and a bracket 9, the bracket 9 is L-shaped, the vertical edge is connected to the rear wall of the frame 1 by bolt, the vortex tube 8 is connected with the horizontal edge of the bracket 9 by bolt, and it is below the frame 1 and parallel to the cooling cover plate 2, the gas inlet of the vortex tube 8 is connected with a cold gas storage tank, and the gas outlet is connected with the gas pipe joint, for inputting compressed cold gas into the gas pipe joint.

[0036] In the above scheme, the cooling nylon plate 6 is arranged on the side of the cooling cover plate 2 away from the cooling pressing plate 3, and the recess 30 for mounting the air pipe joint is arranged on the cooling nylon plate 6. When the bag opening is cooled, the compressed cold air is sequentially input into the recess 30 of the cooling nylon plate 6 from the vortex tube 8 and the air pipe joint, so that the inside of the cooling nylon plate 6 is filled with the compressed cold air with a temperature far lower than the ambient temperature and continuously flowing, thereby realizing the continuous cooling treatment of the cooling nylon plate 6. The cooling nylon plate 6 with the temperature lowered not only exchanges heat with the cooling cover plate 2, but also the compressed cold air in the recess 30 of the cooling nylon plate 6 contacts the cooling cover plate 2 to jointly lower the temperature of the cooling cover plate 2, so that the temperature of the cooling cover plate 2 is far lower than the ambient temperature, thereby achieving the purpose of continuously cooling the bag opening 32 pressed between the cooling pressing plate 3 and the cooling cover plate 2, realizing the instantaneity and continuity of cooling, and greatly improving the cooling effect of the bag opening 32.

[0037] In addition, during the cooling process, the bag opening 32 is continuously flattened under the pressure action of the cooling pressing plate 3 and the cooling cover plate 2, so that the functions of flattening and cooling are combined, the volume is smaller, the cost is lower, and the appearance of the bag opening 32 is also ensured.

[0038] The driving device comprises a first driving mechanism, a second driving mechanism, and two first connecting plates 10 for connecting the first driving mechanism and the second driving mechanism. The two first connecting plates 10 are perpendicular to the cooling pressing plate 3 and are respectively located on the left and right sides of the cooling pressing plate 3. The first connecting plate 10 is connected to the cooling pressing plate 3 through a connecting assembly. The connecting assembly comprises a second connecting plate 11 and a rubber pad 12. The second connecting plate 11 is connected to the side of the cooling pressing plate 3 away from the cooling cover plate 2 through a bolt. The rubber pad 12 is located between the cooling pressing plate 3 and the second connecting plate 11. The side wall of the second connecting plate 11 is connected to the first connecting plate 10 through a bolt.

[0039] The first driving mechanism comprises a rotating shaft 13, a gas cylinder 14, a first rotating connecting piece and a second rotating connecting piece. The rotating shaft 13 penetrates the inside of the frame 1. The first rotating connecting piece is installed on the shaft body in the inside of the frame 1. The second rotating connecting piece is connected to the outside of the frame 1 at the two ends of the rotating shaft 13 extending from the left and right side walls of the frame 1. Circular holes are arranged in the left and right side walls of the frame 1. Deep groove ball bearings 15 are installed in the circular holes. The two ends of the rotating shaft 13 are rotatably connected to the frame 1 through the deep groove ball bearings 15.

[0040] The first rotary connecting piece comprises a first rotary connecting plate 16 and a first locking block 17 detachably connected to the lower part of the first rotary connecting plate 16 by a bolt, and the end faces of the first rotary connecting plate 16 and the second locking block 22 are provided with mounting grooves extending into the first rotary connecting plate 16 and the second locking block 22, respectively. The mounting grooves of the first rotary connecting plate 16 and the second locking block 22 are butted to form a clamping groove 29 for the rotating shaft 13, so that the first rotary connecting piece is mounted on the shaft body of the rotating shaft 13 inside the frame 1.

[0041] The cylinder 14 is clamped above the frame 1 by a pair of cylinder mounting blocks 18 mounted on the rear side wall of the frame 1, and the driving end of the piston rod 19 is connected to the cylinder joint bearing 20, and the end of the cylinder joint bearing 20 away from the piston rod 19 is hinged to the upper part of the first rotary connecting plate 16.

[0042] The second rotary connecting piece comprises a second rotary connecting plate 21 and a second locking block 22 connected to the second rotary connecting plate 21 by a bolt, and the second rotary connecting plate 21 and the second locking block 22 are oppositely mounted on the end of the rotating shaft 13 extending out of the frame 1, and the second rotary connecting plate 21 and the second locking block 22 are connected to the first stop ring 23 away from the frame 1, and the first stop ring 23 is connected to the end of the rotating shaft 13 extending out of the frame 1 by a bolt. The lower part of the second rotary connecting plate 21 extends below the frame 1 and is rotatably connected to the first connecting plate 10.

[0043] The specific structure of the rotatable connection between the lower part of the second rotary connecting plate 21 and the first connecting plate 10 is that the lower part of the second rotary connecting plate 21 is provided with a through hole, a pin shaft 24 is transversely arranged in the through hole, one end of the pin shaft 24 is located in the through hole, the other end of the pin shaft 24 passes through the first connecting plate 10 and is connected to the side of the first connecting plate 10 away from the second rotary connecting plate 21 by a bolt, and a pin shaft joint bearing 27 and a second stop ring 28 are sleeved on the shaft body of the pin shaft 24 located in the through hole, and the second stop ring 28 is located on the rear side of the pin shaft joint bearing 27 and serves as a limiting part, and the outer ring of the pin shaft joint bearing 27 is fitted in the through hole in the lower part of the second rotary connecting plate 21.

[0044] The second driving mechanism comprises a pair of connecting rods 25 and connecting rod joint bearings 26 arranged at the two ends of the connecting rods 25, and the connecting rods 25 are rotatably connected to the left and right side walls of the frame 1, and the specific hinged structure is that the top of the connecting rod joint bearing 26 located at the upper end of the connecting rod 25 is hinged to the left side wall or the right side wall of the frame 1, and the bottom of the connecting rod joint bearing 26 located at the lower end of the connecting rod 25 is hinged to the first connecting plate 10 located on the left side or the right side of the cooling pressure plate 3.

[0045] When it is needed to cool the bag opening 32, the air cylinder 14 can be started to make the piston rod 19 of the air cylinder 14 extend, and the extension of the piston rod 19 drives the first rotary connecting piece to rotate, and further drives the rotating shaft 13 to rotate; the rotation of the rotating shaft 13 drives the second rotary connecting plate 21 to swing, and further drives the connecting rod 25 and the first connecting plate 10 to swing in the direction of the cooling cover plate 2 below the frame 1; under the swing of the four connecting rod 25 mechanism of the piston rod 19, the second rotary connecting plate 21, the first connecting plate 10 and the connecting rod 25, not only the cooling pressing plate 3 connected with the first connecting plate 10 is attached to the cooling cover plate 2, and the bag opening 32 is pressed between the cooling pressing plate 3 and the cooling cover plate 2, to realize the flattening and cooling function of the bag opening 32; but also can ensure that the cooling pressing plate 3 is always in a horizontal state, to avoid interference with the bag opening 32 entering the cooling station from the heat sealing station, and to improve the stability of the whole equipment work.

[0046] The working principle and use method of the bag opening cooling mechanism of the utility model:

[0047] The piston rod 19 of the air cylinder 14 is in a retracted state in the initial state, when the bag 32 after heat sealing moves to the cooling mechanism (as shown in Figure 7 ), the piston rod 19 extends in turn to drive the first rotary connecting plate 16, the rotating shaft 13, the second rotary connecting plate 21, the first connecting plate 10 and the connecting rod 25 to swing, and the cooling pressing plate 3 connected with the first connecting plate 10 moves to the direction of the cooling cover plate 2 and gradually approaches the cooling cover plate 2 along with the swing of the first connecting plate 10, so that the cooling pressing plate 3 is attached to the surface of the cooling cover plate 2, and the bag opening 32 is pressed (as shown in Figure 8 );

[0048] The compressed cold air is sequentially input into the groove 30 of the cooling nylon plate 6 from the vortex tube 8 and the air pipe joint, so that the inside of the cooling nylon plate is filled with compressed cold air with a temperature far lower than the ambient temperature and constantly flowing, and further the temperature of the cooling cover plate 2 connected with the cooling nylon plate 6 is also constantly lowered, so that the temperature of the cooling cover plate 2 is also far lower than the ambient temperature; when the cooling pressing plate 3 is attached to the cooling cover plate 2, not only the cooling and temperature reduction of the bag opening 32 can be realized, but also the bag opening can be flattened, so that the cooling effect of the bag opening is improved, and the function of flattening the bag opening is also achieved.

[0049] It should be noted that the terms "first", "second" and the like are used herein to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.

[0050] The words "upper", "lower", "left", "right", "front", "back", "vertical", "inner", "outer" and the like that are used herein are used for convenience and are not intended to refer to the orientation of the device in actual use. Actual orientation can vary depending on the placement of the device and is merely used to facilitate the description of the present application and to simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. A packaging bag mouth cooling mechanism comprising a frame and a cooling cover plate and a cooling press plate provided below the frame, characterized in that, The cooling pressing plate is rotatably connected to the frame below by a driving device, which is used to drive the cooling pressing plate to swing below the frame in the direction of the cooling cover plate, so as to realize the mutual approach or separation of the cooling pressing plate and the cooling cover plate.

2. The bag opening cooling mechanism according to claim 1, wherein The driving device comprises a first driving mechanism, a second driving mechanism and a first connecting plate for connecting the first driving mechanism and the second driving mechanism.

3. The bag opening cooling mechanism according to claim 2, wherein The first driving mechanism comprises a rotating shaft, a cylinder and first and second rotating connecting members.

4. The bag opening cooling mechanism according to claim 3, wherein The rotating shaft penetrates through and is rotatably connected to the inside of the frame.

5. The bag opening cooling mechanism according to claim 3, wherein The first rotating connecting member is mounted on the shaft body inside the frame.

6. The mechanism according to claim 5, wherein The second rotating connecting member is rotatably connected to the upper part of the first connecting plate.

7. The bag opening cooling mechanism according to claim 2, wherein The first rotating connecting member comprises a first rotating connecting plate and a first locking block detachably connected to the lower part of the first rotating connecting plate. The second rotating connecting member comprises a second rotating connecting plate and a second locking block detachably connected to the second rotating connecting plate. The second rotating connecting plate and the second locking block are oppositely mounted on the end of the rotating shaft extending out of the frame. The lower part of the second rotating connecting plate is provided with a through hole. The through hole is transversely penetrated by a pin shaft. The other end of the pin shaft is detachably connected to the side of the first connecting plate away from the second rotating connecting plate. The shaft body of the pin shaft in the through hole is sleeved with a pin shaft joint bearing and a second stopper. The second driving mechanism comprises a pair of connecting rods and connecting rod joint bearings arranged at the two ends of the connecting rods. The top of the connecting rod joint bearing at the upper end of the connecting rod is hinged to the outer side wall of the frame. The bottom of the connecting rod joint bearing at the lower end of the connecting rod is hinged to the first connecting plate.

8. The bag opening cooling mechanism according to claim 2, wherein The connecting assembly comprises a second connecting plate and a rubber pad, the second connecting plate is detachably arranged on the side of the cooling pressing plate away from the cooling cover plate, the rubber pad is arranged between the cooling pressing plate and the second connecting plate, and the side wall of the second connecting plate is connected with the first connecting plate through bolts.

9. The bag opening cooling mechanism according to claim 1, wherein The cold air input device comprises a vortex tube and a support connected with the side wall of the frame, the vortex tube is detachably connected with the support, is arranged below the frame and is parallel to the cooling cover plate, an air inlet of the vortex tube is connected with the cold air storage tank, and an air outlet of the vortex tube is connected with the air pipe joint.

10. The bag opening cooling mechanism according to any one of claims 1 to 9, wherein A mounting rack is detachably mounted on the top of the frame, and an adjusting plate is detachably mounted on the top of the mounting rack.

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