Side edge sealing device of sealing and cutting machine

Abstract

The utility model discloses a side edge sealing device of a sealing and cutting machine, the side edge is sealed in the moving process, the heat sealing effect is good, the technical scheme is that the side edge sealing device of the sealing and cutting machine comprises a machine base, two sealing units are arranged on the machine base, and the two sealing units are symmetrically arranged up and down. The sealing unit comprises conveying belt modules and heat sealing discs, a conveying channel is formed between the two conveying belt modules, a plastic film is driven by the conveying belt modules to penetrate through the conveying channel, the heat sealing discs can enter the conveying channel, and the two heat sealing discs are matched to conduct heat sealing on the plastic film. Belongs to the technical field of packaging equipment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to packaging equipment technical field, more specifically, relate to a side edge sealing device of sealing and cutting machine. BACKGROUND

[0002] Sealing and cutting machine is the equipment of covering a layer of plastic film to the product outside, and along with the development of science and technology, basically realizes automation.

[0003] Generally speaking, the product will be placed on the conveyor belt, along with the operation of the conveyor belt, the product will enter the cavity built by the plastic film, so as to be wrapped by the plastic film, then using hot cutting knife, sealing, make the plastic film around the product all closed, the hot cutting knife before and after the product is sealed up relatively simple, but the side heat sealing is more troublesome, one is the size of the hot cutting knife needs to change according to the product size, can ensure that the heat sealing is in place, moreover, the hot cutting effect is poor, leading to the side edge is easy to break open. INNOVATION CONTENT

[0004] The utility model discloses a kind of side edge sealing devices of sealing and cutting machine, side edge is sealed in movement process, and heat sealing effect is good.

[0005] According to the first aspect of the utility model, a kind of side edge sealing device of sealing and cutting machine is provided, including base, two sealing units are equipped on the base, two described sealing units are symmetrically arranged upside down, and the sealing unit includes conveyor belt module and heat sealing disc, two described conveyor belt modules form conveying channel between, plastic film is driven through the conveying channel under the conveyor belt module, the heat sealing disc can enter the conveying channel, two described heat sealing discs cooperate and heat seal plastic film.

[0006] In the side edge sealing device of sealing and cutting machine described above, the conveyor belt module includes driving wheel, first driven wheel, second driven wheel and at least two conveying belts, the driving wheel and the first driven wheel are arranged along the horizontal direction interval, the heat sealing disc is located between the driving wheel and the first driven wheel, the second driven wheel is located on the side of the heat sealing disc away from another sealing unit, the conveying belt is drivingly connected with the driving wheel, the first driven wheel and the second driven wheel, the conveyor belt module has gap between two adjacent conveying belts, and the heat sealing disc can pass out from the gap.

[0007] The axis of the driving wheel, the first driven wheel, the second driven wheel and the heat sealing disc is parallel.

[0008] In the side sealing device of the above-mentioned sealing and cutting machine, a guide post is vertically arranged on the machine base, and two sliders are slidably fitted on the guide post. The sliders can be raised and lowered under the drive of a cylinder. The two heat sealing discs correspond to the two sliders, and the heat sealing discs are rotatably mounted on the sliders.

[0009] In the side sealing device of the sealing and cutting machine described above, the sealing unit includes a support plate located between the driving wheel and the first driven wheel. The support plate has a notch for the heat sealing disc to pass through, and the conveyor belt passes between the two support plates so that the support plates support the conveyor belt.

[0010] In the side sealing device of the aforementioned sealing and cutting machine, a motor is provided on the machine base, and it also includes a drive gear, a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a first transmission gear, and a second transmission gear. The drive gear is located at the output end of the motor. The first gear is coaxially and fixedly connected to one of the heat sealing discs. The second gear is coaxially and fixedly connected to the other heat sealing disc. The third gear is coaxially and fixedly connected to one of the drive wheels. The fourth gear is coaxially and fixedly connected to the other drive wheel. The fifth gear is rotatably mounted on the machine base. The drive gear, the first gear, and the third gear are connected by a first transmission belt. The second gear, the fourth gear, and the fifth gear are connected by a second transmission belt. The first transmission gear is coaxially and fixedly connected to the third gear. The second transmission gear is coaxially and fixedly connected to the fourth gear. The first transmission gear meshes with the second transmission gear.

[0011] In the side sealing device of the sealing and cutting machine mentioned above, the input end of the conveying channel is provided with a pressing module. The pressing module includes two pressing rollers arranged vertically. The two pressing rollers tend to move closer to each other under the action of the elastic element.

[0012] The plastic film passes through the two pressing rollers and enters the conveying channel.

[0013] The side sealing device of the sealing and cutting machine described above includes a fixed rod and a movable rod. The movable rod is located above the fixed rod and can swing up and down. The elastic element connects the fixed rod and the movable rod. One of the pressing rollers is rotatably mounted on the fixed rod, and the other pressing roller is mounted on the movable rod.

[0014] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0015] In this invention, a conveyor belt module is used to construct a conveying channel. When the product moves, the plastic film on its side enters the conveying channel. The conveyor belt module can also assist the plastic film in moving with the product. When the plastic film moves, two heat-sealing discs will cooperate to press onto the plastic film and heat-seal it. Therefore, the side sealing of the plastic film can be completed during the movement. This side sealing structure has better applicability and better sealing effect. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Fig. 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0018] Fig. 2 This is another structural schematic diagram of the first embodiment of the present utility model;

[0019] Fig. 3 This is a schematic diagram of the structure after removing the motor in the first embodiment of this utility model.

[0020] The figure labels for each figure are as follows:

[0021] 1. Base; 11. Guide post; 12. Slider; 13. Cylinder; 2. Conveyor belt module; 21. Drive wheel; 22. First driven wheel; 23. Second driven wheel; 24. Conveyor belt; 25. Support plate; 3. Heat sealing disc; 4. Motor; 41. Drive gear; 42. First gear; 43. Second gear; 44. Third gear; 45. Fourth gear; 46. Fifth gear; 47. First transmission gear; 48. Second transmission gear; 49. First transmission belt; 50. Second transmission belt; 5. Pressing module; 51. Pressing roller; 52. Elastic element; 53. Fixed rod; 54. Movable rod. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0024] Reference Figs. 1 to 3As shown, a side sealing device for a sealing and cutting machine includes a base 1, on which two sealing units are provided. The two sealing units are arranged symmetrically above and below each other. Each sealing unit includes a conveyor belt module 2 and a heat sealing disc 3. The two sealing units have two conveyor belt modules 2 and two heat sealing discs 3. A conveying channel is formed between the two conveyor belt modules 2. The plastic film passes through the conveying channel under the drive of the conveyor belt modules 2. The heat sealing discs 3 can enter the conveying channel. The two heat sealing discs 3 cooperate to heat seal the plastic film.

[0025] By using conveyor belt module 2 to construct the conveying channel, the plastic film on the side of the product will enter the conveying channel when the product moves. Conveyor belt module 2 can also assist the plastic film to move with the product. When the plastic film moves, two heat sealing discs 3 will cooperate to press on the plastic film and heat seal the plastic film. Therefore, the side sealing of the plastic film can be completed during the movement. This side sealing structure has better applicability and better sealing effect.

[0026] Specifically, the conveyor belt module 2 includes a drive wheel 21, a first driven wheel 22, a second driven wheel 23, and at least two conveyor belts 24. The axes of the drive wheel 21, the first driven wheel 22, the second driven wheel 23, and the heat sealing disc 3 are parallel. The drive wheel 21 and the first driven wheel 22 are arranged at intervals in the horizontal direction. The heat sealing disc 3 is located between the drive wheel 21 and the first driven wheel 22. The second driven wheel 23 is located on the side of the heat sealing disc 3 away from the other sealing unit. The conveyor belts 24 drive the drive wheel 21, the first driven wheel 22, and the second driven wheel 23. There is a gap between two adjacent conveyor belts 24 of the conveyor belt module 2. The heat sealing disc 3 can pass through the gap and use the outer edge of the heat sealing disc 3 to heat seal the plastic film.

[0027] In this embodiment, a guide post 11 is vertically arranged on the base 1, and two sliders 12 are slidably fitted on the guide post 11. Each slider 12 is equipped with a cylinder 13. The slider 12 can be raised and lowered under the drive of the cylinder 13. Two heat sealing plates 3 correspond to the two sliders 12, and the heat sealing plates 3 are rotatably mounted on the sliders 12.

[0028] The heating element can be placed on the slider 12 to raise the temperature of the heat sealing plate 3; electromagnetic heating is preferred as it has high heating efficiency.

[0029] In this embodiment, the sealing unit includes a support plate 25. Two sealing units have two support plates 25. The support plate 25 is located between the driving wheel 21 and the first driven wheel 22. The support plate 25 has a notch through which the heat sealing disc 3 passes. The conveyor belt 24 passes between the two support plates 25 so that the support plate 25 supports the conveyor belt 24, so that the conveyor belt 24 can stably support the plastic film and facilitate heat sealing.

[0030] In this embodiment, a motor 4 is provided on the base 1, and it also includes a drive gear 41, a first gear 42, a second gear 43, a third gear 44, a fourth gear 45, a fifth gear 46, a first transmission gear 47, and a second transmission gear 48. The drive gear 41 is located at the output end of the motor 4. The first gear 42 is coaxially and fixedly connected to one of the heat sealing discs 3. The second gear 43 is coaxially and fixedly connected to another heat sealing disc 3. The third gear 44 is coaxially and fixedly connected to one of the driving wheels 21. The fourth gear 45 is coaxially and fixedly connected to another driving wheel 21. The fifth gear 46 is rotatably mounted on the base 1. The drive gear 41, the first gear 42, and the third gear 44 are connected by a first transmission belt 49. The second gear 43, the fourth gear 45, and the fifth gear 46 are connected by a second transmission belt 50. The first transmission gear 47 is coaxially and fixedly connected to the third gear 44. The second transmission gear 48 is coaxially and fixedly connected to the fourth gear 45. The first transmission gear 47 and the second transmission gear 48 mesh.

[0031] Motor 4 drives drive gear 41 to rotate, which in turn drives first gear 42 and third gear 44 to rotate via first transmission belt 49. First gear 42 drives heat sealing disc 3 to rotate, and third gear 44 drives drive wheel 21 to rotate. Then, based on first transmission gear 47 driving second transmission gear 48 to rotate, fourth gear 45 rotates. Fourth gear 45 drives drive wheel 21 to rotate. Fourth gear 45 drives second gear 43 to rotate via second transmission belt 50. Second gear 43 drives heat sealing disc 3 to rotate.

[0032] Because the first transmission belt 49 and the second transmission belt 50 are used for transmission, even if the two heat-sealing discs 3 slide up and down slightly, it will not affect the overall transmission.

[0033] In this embodiment, the input end of the conveying channel is provided with a pressing module 5. The pressing module 5 includes two pressing rollers 51 arranged vertically. The two pressing rollers 51 tend to move closer to each other under the action of the elastic element 52.

[0034] The plastic film passes through the two pressing rollers 51 and enters the conveying channel. Therefore, when the plastic film passes through the pressing rollers 51, it will stick together under the pressure of the pressing rollers 51, which facilitates subsequent heat sealing.

[0035] Specifically, it includes a fixed rod 53 and a movable rod 54. The fixed rod 53 and the movable rod 54 can be set on the machine base 1 or on the external frame. The movable rod 54 is located above the fixed rod 53 and can swing up and down. The elastic element 52 connects the fixed rod 53 and the movable rod 54. One pressing roller 51 is rotatably set on the fixed rod 53, and the other pressing roller 51 is set on the movable rod 54. The axis of the pressing roller 51 set on the fixed rod 53 is parallel to the axis of the heat sealing plate 3.

[0036] The elastic element 52 is a spring, which is supported between the fixed rod 53 and the movable rod 54, so that the end of the movable rod 54 away from the spring is pressed down. The pressing roller 51 on the movable rod 54 is located at the end that is pressed down, so that the pressing roller 51 can press the plastic film.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A side sealing device for a sealing and cutting machine, characterized in that The machine base is provided with two sealing units, the two sealing units are symmetrically arranged, the sealing unit comprises a conveying belt module and a heat sealing disc, the two conveying belt modules form a conveying channel, the plastic film is driven by the conveying belt module to pass through the conveying channel, the heat sealing disc can enter the conveying channel, and the two heat sealing discs cooperate to heat seal the plastic film.

2. The side sealing device of a cutting and sealing machine according to claim 1, characterized in that The conveying belt module comprises a driving wheel, a first driven wheel, a second driven wheel and at least two conveying belts, the driving wheel and the first driven wheel are arranged in a horizontal direction, the heat sealing disc is located between the driving wheel and the first driven wheel, the second driven wheel is located on the side of the heat sealing disc away from the other sealing unit, the conveying belts are drivingly connected with the driving wheel, the first driven wheel and the second driven wheel, and the conveying belt module has a gap between two adjacent conveying belts. The axes of the driving wheel, the first driven wheel, the second driven wheel and the heat sealing disc are parallel.

3. The side sealing apparatus of a cutting and sealing machine according to claim 1, wherein The machine base is vertically provided with a guide column, the guide column is slidingly fitted with two sliding blocks, the sliding blocks can be lifted and lowered under the drive of a gas cylinder, the two heat sealing discs correspond to the two sliding blocks, and the heat sealing disc is rotatably arranged on the sliding block.

4. The side sealing apparatus of a cutting and sealing machine according to claim 2, wherein The sealing unit comprises a support plate, the support plate is located between the driving wheel and the first driven wheel, the support plate is provided with a notch for the heat sealing disc to pass through, and the conveying belts pass through between the two support plates to enable the support plates to support the conveying belts.

5. The side sealing apparatus of a cutting and sealing machine according to claim 2, wherein The machine base is provided with a motor, and further comprises a driving gear, a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a first transmission gear and a second transmission gear, the driving gear is arranged on the output end of the motor, the first gear is coaxial with and fixedly connected with one of the heat sealing discs, the second gear is coaxial with and fixedly connected with the other heat sealing disc, the third gear is coaxial with and fixedly connected with one of the driving wheels, the fourth gear is coaxial with and fixedly connected with the other driving wheel, the fifth gear is rotatably arranged on the machine base, the driving gear, the first gear and the third gear are drivingly connected through a first transmission belt, the second gear, the fourth gear and the fifth gear are drivingly connected through a second transmission belt, the first transmission gear is coaxial with and fixedly connected with the third gear, the second transmission gear is coaxial with and fixedly connected with the fourth gear, and the first transmission gear is engaged with the second transmission gear.

6. The side-sealing apparatus of a packaging machine according to claim 1, characterized in that, The input end of the conveying channel is provided with a pressing module, the pressing module comprises two pressing rollers arranged in an up-down direction, and the two pressing rollers have a tendency to approach each other under the action of an elastic element. The plastic film passes through the two pressing rollers and enters the conveying channel.

7. The side-sealing apparatus of a wrap-around machine according to claim 6, wherein The fixed rod and the movable rod are provided, the movable rod is above the fixed rod and swings up and down, the elastic member connects the fixed rod and the movable rod, one of the pressing rollers is rotationally arranged on the fixed rod, and the other pressing roller is arranged on the movable rod.

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