CN113734531B - Packaging machine, sealing mechanism and process for sealing packaging bags - Google Patents

Packaging machine, sealing mechanism and process for sealing packaging bags Download PDF

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Publication number
CN113734531B
CN113734531B CN202111080922.4A CN202111080922A CN113734531B CN 113734531 B CN113734531 B CN 113734531B CN 202111080922 A CN202111080922 A CN 202111080922A CN 113734531 B CN113734531 B CN 113734531B
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sealing
block
sealed
packaging bag
bag
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CN202111080922.4A
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CN113734531A (en
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石国成
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/22Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/14Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/22Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/80Packaging reuse or recycling, e.g. of multilayer packaging

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)

Abstract

The invention discloses a sealing mechanism for sealing a packaging bag, wherein a bag receiving seat is arranged below a pressing block, and a sealing space for accommodating the packaging bag to be sealed is arranged between the bag receiving seat and the pressing block; the bag receiving seat is used for supporting the bottom of the packaging bag to be sealed, the pressing block is used for pressing and touching the top of the packaging bag to be sealed, the bag receiving seat and/or the pressing block are in transmission connection with the lifting driving mechanism, and the bag receiving seat and/or the pressing block can be driven by the driving mechanism to enable the bag receiving seat and/or the pressing block to reciprocate up and down relatively; the sealing assembly is arranged on the side face of the sealing space and is used for sealing the packaging bag to be sealed. The bag receiving seat and/or the pressing block are/is driven to adjust the included angle between the top of the packaging bag to be sealed and the lower surface of the pressing block, so that the top of the packaging bag to be sealed is completely attached to the pressing block; further, when the sealing assembly performs sealing operation, the sealing line is parallel to the top of the packaging bag to be sealed. Meanwhile, the scheme of the application is compact in structure, high in reliability, high in sealing speed and attractive.

Description

Packaging machine, sealing mechanism and process for sealing packaging bags
Technical Field
The invention relates to the field of packaging equipment, in particular to a sealing mechanism for sealing packaging bags.
Background
In the existing packaging machines, such as tea packaging machines, a sealing mechanism is provided with heat-sealing blocks and bag-receiving seats, wherein the heat-sealing blocks are generally provided with two heat-sealing blocks which are transversely arranged, one heat-sealing block is a first heat-sealing block, the other heat-sealing block is a second heat-sealing block, and the bag-receiving seats are arranged below the heat-sealing blocks; when the packing bag is used, the packing bag opening can be opened in advance when materials are filled into the packing bag, deformation is generated by stressed stretching when the packing bag is opened, the upper end edge of the packing bag and the lower end edge of the packing bag cannot be arranged in parallel, and the heat seal is arranged in parallel with the bag receiving seat, so that when the packing bag falls into the bag receiving seat, the second heat seal block is horizontally moved to the first heat seal block to be attached to the first heat seal block, the sealing line of the packing bag can be arranged in parallel with the upper end edge of the packing bag after the upper end opening of the packing bag is sealed, and the sealing line is inclined and uneven.
In view of the above, the present inventors have conducted intensive studies on the above problems, and have produced the present invention.
Disclosure of Invention
For this reason, it is required to provide a sealing mechanism for sealing a package such that the sealing line of the package is straight and the sealing line is parallel to the upper end edge of the package.
To achieve the above object, the present application provides a sealing mechanism for sealing a package bag, comprising: the sealing device comprises a bag receiving seat, a pressing block, a lifting driving mechanism and a sealing assembly;
the bag receiving seat is arranged below the pressing block, and a sealing space for accommodating the packaging bag to be sealed is arranged between the bag receiving seat and the pressing block;
the bag receiving seat is used for supporting the bottom of the packaging bag to be sealed, the top pressing block is used for pressing and touching the top of the packaging bag to be sealed, the bag receiving seat and/or the top pressing block are in transmission connection with the lifting driving mechanism, and the bag receiving seat and/or the top pressing block can be driven by the driving mechanism to enable the bag receiving seat and/or the top pressing block to reciprocate up and down relatively;
the sealing assembly is arranged on the side face of the sealing space and is used for sealing the packaging bag to be sealed.
Further, the closure assembly includes: the packaging bag sealing device comprises a first sealing block, a second sealing block and a sealing driving mechanism, wherein the first sealing block and the second sealing block are oppositely arranged at two sides of a sealing space, a packaging bag to be sealed is contained between the first sealing block and the second sealing block, the first sealing block and/or the second sealing block are in transmission connection with the sealing driving mechanism, and the first sealing block and/or the second sealing block are configured to enable the first sealing block and the second sealing block to reciprocate left and right under the driving of the sealing driving mechanism.
Further, the pressing block is arranged at the upper part of the first sealing block and extends towards the second sealing block.
Further, the lower surface of the top pressing block is higher than the upper surface of the second sealing block.
Further, the first sealing block and the top pressing block are integrally arranged.
Further, the sealing mechanism further comprises a controller, and after the packaging bag to be sealed is placed on the bag receiving seat, the controller is used for executing the following steps:
controlling the sealing driving device to act so that the first sealing block and the second sealing block relatively move close to each other for the first time;
controlling the lifting driving device to act, so that a bag receiving seat for supporting a packaging bag to be sealed and a pressing block above a bag mouth of the packaging bag to be sealed are relatively close to each other and move, the pressing block is in pressing contact with the top of the packaging bag to be sealed, the top of the packaging bag to be sealed is attached to a pressing contact surface of the pressing block, the position of the packaging bag to be sealed is adjusted and adjusted, and the pressing contact surface is a position on the lower surface of the pressing block, which is in pressing contact with the packaging bag to be sealed;
and controlling the sealing driving device to act, so that the first sealing block and the second sealing block are relatively moved to the sealing position for the second time, and the sealing assembly seals the packaging bag to be sealed.
Further, the position on the lower surface of the pressing block, which is in press contact with the packaging bag to be sealed, is a press contact surface;
the position on the upper surface of the bag receiving seat for supporting the packaging bag to be sealed is a supporting surface;
the pressing contact surface is parallel to the bearing surface.
Further, the seal assembly is: an ultrasonic seal assembly, a laser seal assembly, or a heat seal assembly.
Further, the pressing block is fixedly arranged in the height direction, and the bag receiving seat is in transmission connection with the lifting driving mechanism and is configured to enable the bag receiving seat to reciprocate up and down under the driving of the driving mechanism.
To achieve the above object, the present application provides a packaging machine applied to the sealing mechanism for sealing a package according to any one of the above embodiments.
In order to achieve the above object, the present application provides a packaging bag sealing process, including the steps of:
placing the packaging bag to be sealed on a bag receiving seat;
the method comprises the steps that a bag receiving seat for supporting a packaging bag to be sealed and a pressing block above a bag opening of the packaging bag to be sealed are relatively close to each other and move, the pressing block is in pressing contact with the top of the packaging bag to be sealed, so that the top of the packaging bag to be sealed is attached to a pressing contact surface of the pressing block, the position of the packaging bag to be sealed is adjusted and adjusted, and the pressing contact surface is a position on the lower surface of the pressing block, which is in pressing contact with the packaging bag to be sealed;
the sealing assembly seals the packaging bag to be sealed.
Further, the bag receiving seat for supporting the packaging bag to be sealed and the pressing block above the opening of the packaging bag to be sealed are relatively close to each other and move to a preset distance, the pressing block is in pressing contact with the top of the packaging bag to be sealed, the top of the packaging bag to be sealed is attached to the pressing contact surface of the pressing block, and the position of the packaging bag to be sealed is adjusted and adjusted; or (b)
The bag receiving seat for supporting the packaging bag to be sealed and the pressing block above the bag mouth of the packaging bag to be sealed are relatively close to each other and move, and the pressing block is pressed against the top of the packaging bag to be sealed to a preset pressure, so that the pressing contact surface of the top of the packaging bag to be sealed and the pressing block is attached, and the position of the packaging bag to be sealed is adjusted and adjusted.
Further, in the step of sealing the packaging bag to be sealed by the sealing assembly, the method further comprises the steps of:
the first sealing block and the second sealing block relatively move close to each other until the first sealing block and the second sealing block relatively move to the sealing position, and the bag mouth of the packaging bag to be sealed positioned between the first sealing block and the second sealing block is sealed.
Further, before the bag receiving seat for supporting the packaging bag to be sealed and the pressing block above the opening of the packaging bag to be sealed are moved relatively close to each other, the first sealing block and the second sealing block are moved relatively close to each other for the first time;
the step of sealing the packaging bag to be sealed by the sealing assembly comprises the steps of relatively moving the first sealing block and the second sealing block for the second time until the first sealing block and the second sealing block relatively move to the sealing position, and sealing the opening of the packaging bag to be sealed positioned between the first sealing block and the second sealing block.
Compared with the prior art, the technical scheme is characterized in that the bag receiving seat and/or the pressing block are/is driven, when the bag receiving seat and/or the pressing block are/is driven through the lifting driving mechanism to be close to the bag receiving seat and the pressing block, when the pressing block presses and touches the packaging bag to be sealed, if the position of the packaging bag to be sealed is inclined, the top of the packaging bag to be sealed is not tightly attached to the pressing block, an included angle exists, the packaging bag to be sealed is straightened due to the action force between the lower surface of the pressing block and the top of the packaging bag to be sealed and the action force between the upper surface of the bag receiving seat and the bottom of the packaging bag to be sealed, the top of the packaging bag to be sealed is attached to the pressing block, then the sealing operation of the packaging bag is carried out, and thus the sealing line of the packaging bag to be sealed is not easy to incline. According to the scheme, the problem that the packaging bag and the sealing line incline when sealing is effectively solved, the structure is compact, the reliability is high, and the problem in the prior art is solved.
Drawings
FIG. 1 is a schematic diagram showing a structure of the top pressing block and the second sealing block;
FIG. 2 is a diagram showing the structure of the first sealing block and the second sealing block;
FIG. 3 is a diagram showing the structure of the top of the package to be sealed and the top pressing block;
FIG. 4 is a diagram showing the structure of the first sealing block and the second sealing block when sealing;
FIG. 5 is a diagram of the seal line structure;
FIG. 6 is a diagram of the structure of the top of the bag to be sealed when the top of the bag is just in contact with the top pressing block;
FIG. 7 is a diagram showing the structure of the top of the packaging bag to be sealed by pressing the pressing block;
FIG. 8 is a side view of the top of the bag to be sealed just in contact with the top pressure block;
FIG. 9 is a top side view of the top pressure block pressing the package to be sealed;
fig. 10 is a flow chart of the package sealing process.
Reference numerals illustrate:
100. packaging bags to be sealed; 200. sealing the packaging bag; 300. a sealing line;
1. a bag receiving seat; 2. a first sealing block; 3. a second sealing block; 4. pressing the block.
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.
The scheme of the application is applicable to various packaging bags with bottoms needing to be sealed, the packaging bag 100 to be sealed is a packaging bag which is not sealed by the sealing assembly, the top of the packaging bag 100 to be sealed is one side which is not sealed, and the bottom edge of the packaging bag 100 to be sealed is one side which is sealed; the sealed package 200 is a package that has been sealed by the seal assembly. The sealing assembly seals the unsealed side of the packaging bag 100 to be sealed, and forms a sealing line 300 after sealing.
Referring to fig. 1 to 5, the present application provides a sealing mechanism for sealing a package, comprising: the sealing device comprises a bag receiving seat, a pressing block, a lifting driving mechanism and a sealing assembly; the bag receiving seat 1 is arranged below the pressing block 4, and a sealing space for accommodating the packaging bag 100 to be sealed is formed between the bag receiving seat 1 and the pressing block 4; the bag receiving seat 1 is used for supporting the bottom of the packaging bag 100 to be sealed, the top pressing block 4 is used for pressing the top of the packaging bag 100 to be sealed, the bag receiving seat 1 and/or the top pressing block 4 are in transmission connection with the lifting driving mechanism, and the bag receiving seat 1 and/or the top pressing block 4 can be driven by the driving mechanism to enable the bag receiving seat 1 and/or the top pressing block 4 to reciprocate up and down relatively; the sealing assembly is arranged on the side surface of the sealing space and is used for sealing the packaging bag 100 to be sealed. Preferably, the pressing block is fixedly arranged in the height direction, and the bag receiving seat is in transmission connection with the lifting driving mechanism and is configured to reciprocate up and down under the driving of the driving mechanism. Of course, in other embodiments, the bag receiving seat may be fixed in the height direction, and the pressing block is driven by the driving mechanism to reciprocate up and down. And in other embodiments, the bag receiving seat and the pressing block can reciprocate up and down under the drive of the driving mechanism.
It should be noted that, the sealing space is located between the pressing block 4 and the bag receiving seat 1, and the packaging bag 100 to be sealed is placed on the bag receiving seat 1 and is located in the sealing space. In the embodiment, the position of the lower surface of the pressing block, which is in pressing contact with the packaging bag to be sealed, is a pressing contact surface; the position on the upper surface of the bag receiving seat for supporting the packaging bag to be sealed is a supporting surface. The pressing block 4 moves in opposite directions with the bag receiving seat 1, so that the top of the packaging bag 100 to be sealed is attached to the lower surface of the pressing block 4; referring to fig. 6 and 8, the package 100 is inclined on the bag holder 1. The top pressing block 4 is fixedly arranged in the height direction, the bag receiving seat 1 moves upwards, and due to the fact that the position of the packaging bag to be sealed is inclined, the top of the packaging bag to be sealed is not clung to the pressure contact surface of the top pressing block 4, an included angle exists, and referring to fig. 7, namely fig. 9, due to acting force between the pressure contact surface of the lower surface of the top pressing block and the top of the packaging bag to be sealed, the top of the packaging bag to be sealed is attached to the top pressing block, the packaging bag to be sealed is enabled to be aligned, and the top of the packaging bag to be sealed is attached to the pressure contact surface of the lower surface of the top pressing block 4. That is, when the top of the packaging bag 100 to be sealed is just contacted with the pressing surface of the lower surface of the pressing block 4; at this time, only a part of the top of the packaging bag 100 to be sealed may be attached to the pressing contact surface of the pressing block 4, then the pressing block 4 and the bag receiving seat 1 continue to move relatively close to each other, the top which is not attached to the pressing block 4 moves towards the direction of the pressing block 4 until the top of the packaging bag 100 to be sealed is completely attached to the lower surface of the pressing block 4, and the pressing block 4 and the bag receiving seat 1 continue to stop moving relatively.
In this embodiment, when the top of the packaging bag 100 to be sealed is attached to the lower surface of the top pressing block 4, the top pressing block 4 and the bag receiving seat 1 will stop moving relatively, and at this time, the distance between the top pressing block 4 and the bag receiving seat 1 is a preset distance, and the preset distance is adjusted according to the height of the packaging bag 100 to be sealed. Generally, the preset distance is less than or equal to the height of the package 100 to be sealed, so as to ensure that the top of the package 100 to be sealed is completely attached to the pressing block 4.
It should be noted that, the sealing assembly is disposed on the side of the sealing space, and is used for sealing the package to be sealed after the top of the package to be sealed 100 is attached to the top pressing block 4. When the seal is completed, the seal line 300 is parallel to the top of the sealed package 200.
The lifting driving mechanism is included in the sealing mechanism in the embodiment; the lifting driving mechanism is connected with the bag receiving seat 1 and/or the pressing block 4 and is used for driving the bag receiving seat 1 and/or the pressing block 4 to move in the vertical direction; preferably, a lifting assembly is connected with the bag receiving seat 1, and the lifting assembly is used for driving the bag receiving seat 1 to be close to or far away from the pressing block 4. Of course, in some embodiments, the lifting driving mechanism may also be connected to the pressing block 4, so as to drive the pressing block to move towards the bag receiving seat 1; in other embodiments, the lifting driving mechanism is respectively connected with the pressing block 4 and the bag receiving seat 1 in a transmission way, so as to drive the pressing block 4 and the bag receiving seat 1 to move in opposite directions, and the number of the lifting driving mechanisms can be one, and the lifting driving mechanism is simultaneously connected with the pressing block 4 and the bag receiving seat 1 so as to drive the pressing block 4 and the bag receiving seat 1; the number of the lifting driving mechanisms can be two, and the two lifting driving mechanisms are respectively connected with the pressing block 4 and the bag receiving seat 1 to drive the two lifting driving mechanisms. The lifting driving mechanism is an air cylinder, a hydraulic cylinder or a stepping motor and the like. It should be further noted that the transmission connection may be a direct connection or may be a transmission connection through other transmission components, so long as the driving force can be transmitted to the corresponding components.
The side edge of the bag receiving seat 1 is also provided with two side plates, the two side plates are oppositely arranged on the bag receiving seat 1, the packaging bag 100 to be sealed is arranged between the two side plates, and the two side plates are used for preventing the packaging bag 100 to be sealed from tilting.
Referring to fig. 10, the above sealing apparatus performs the sealing operation according to the following sealing process:
referring to S1001 in fig. 10, first, before sealing, the first sealing block and the second sealing block are separated in the horizontal direction, there is a space between them for the package to fall down, and the package to be sealed after the previous filling procedure falls down onto the bag receiving seat through the space between the first sealing block and the second sealing block. Even if the structure that the top pressing block is arranged at the upper part of the first sealing block and extends towards the second sealing block according to some embodiments above, enough space width can be reserved between the top pressing block and the second sealing block for the filled packaging bag to be sealed to fall onto the bag receiving seat.
Referring to S1002 in fig. 10, next, the first sealing block and the second sealing block are moved relatively close to each other for the first time; the packaging bag to be sealed which is obliquely arranged in the bag receiving seat is erected, and meanwhile, the top of the packaging bag to be sealed is arranged below the pressing block.
Referring to S1003 in fig. 10, then, the bag receiving seat for supporting the to-be-sealed packaging bag and the pressing block above the opening of the to-be-sealed packaging bag are relatively moved, the pressing block is in pressing contact with the top of the to-be-sealed packaging bag, so that the top of the to-be-sealed packaging bag is attached to the pressing contact surface of the pressing block, the to-be-sealed packaging position is adjusted and aligned, and the pressing contact surface is the position on the lower surface of the pressing block, which is in pressing contact with the to-be-sealed packaging bag; the sealing assembly seals the packaging bag to be sealed.
Specifically, when the packaging bag 100 to be sealed is moved onto the bag receiving seat 1, the bag receiving seat 1 and/or the top pressing block 4 move in opposite directions under the action of the lifting driving mechanism, so that the height component of the sealing space is reduced until the top of the packaging bag 100 to be sealed is attached to the lower surface of the top pressing block 4 (the pressing surface is a position on the lower surface of the top pressing block 4, where the pressing surface is pressed against the packaging bag 100 to be sealed), i.e. the top pressing block and the bag receiving seat reach a preset distance, and then the bag receiving seat 1 and the top pressing block 4 stop moving relatively.
Referring to S1004 in fig. 10, finally, the first sealing block and the second sealing block are relatively moved for the second time until the first sealing block and the second sealing block relatively move to the sealing position, and seal the mouth of the packaging bag to be sealed located therebetween, thereby completing the sealing operation; at this time, the sealing line 300 is parallel to the top edge of the sealed package 200.
The first sealing block 2 and the second sealing block 3 move in opposite directions until the first sealing block and the second sealing block are attached, and the packaging bag to be sealed positioned in the middle is heated and sealed. It should be further noted that the sealing position is set according to actual needs, that is, the sealing positions are set by adjusting the heights of the first sealing block and the second sealing block.
Of course, in some embodiments, the area of the top pressing block 4 is larger, so that the packaging bag to be sealed can be accessed from one side of the bag receiving seat, that is, the second sealing block 3 is always arranged below the top pressing block 4. Therefore, when the packaging bag to be sealed is placed on the bag receiving seat, the bag receiving seat 1 can directly move upwards. Specifically, the bag receiving seat directly moves towards the pressing block after receiving the packaging bag 100 to be sealed until the distance between the bag receiving seat and the pressing block reaches the preset distance, and at the moment, the top of the packaging bag to be sealed is completely attached to the lower surface of the pressing block; the sealing assembly seals the packaging bag to be sealed.
In some embodiments, the stopping instruction of the pressing block and the bag receiving seat can be triggered by a pressure sensor, namely, the pressure sensor is arranged at the pressing contact position of the pressing block, when the pressing block is in pressing contact with the top of the packaging bag to be sealed, the pressure sensor starts counting until reaching the preset pressure, at the moment, the top of the packaging bag to be sealed is attached to the pressing contact surface of the pressing block, the position of the packaging bag to be sealed is adjusted and adjusted, and the pressing block and the bag receiving seat stop moving relatively. In some embodiments, a top pressure block is disposed above the first sealing block and extends in a direction toward the second sealing block. The arrangement can enable the top pressing block and the first sealing block to be arranged in a linkage way, so that the transmission structure is simplified. Preferably, the lower surface of the pressing block is higher than the upper surface of the second sealing block. And the first sealing block and the pressing block are preferably integrally arranged, so that the first sealing block and the pressing block can be synchronously processed and manufactured when being manufactured.
Of course, in other implementations, the top pressing block is disposed above the sealing space, and the top pressing block is movably connected with the first sealing block; namely, the pressing block is driven by the lifting driving mechanism to contact with or separate from the first sealing block.
According to the technical scheme, the bag receiving seat 1 and/or the pressing block 4 are/is driven, and the included angle between the top of the packaging bag 100 to be sealed and the lower surface of the pressing block 4 is adjusted, so that the top of the packaging bag 100 to be sealed is completely attached to the pressing block 4; further, the sealing line 300 is parallel to the top of the package 100 to be sealed when the sealing assembly performs the sealing operation. Meanwhile, the scheme of the sealing device is compact in structure, high in reliability, high in sealing speed and attractive, and the problem in the prior art is solved.
Referring to fig. 2 to 5, in order to achieve efficient sealing, in this embodiment, the sealing assembly includes: the packaging bag packaging machine comprises a first sealing block 2, a second sealing block 3 and a sealing driving mechanism, wherein the first sealing block 2 and the second sealing block 3 are oppositely arranged at two sides of a sealing space, a packaging bag 100 to be sealed is contained between the first sealing block 2 and the second sealing block 3, the first sealing block 2 and/or the second sealing block 3 are in transmission connection with the sealing driving mechanism, and the first sealing block 2 and/or the second sealing block 3 can be driven by the sealing driving mechanism to enable the first sealing block 2 and the second sealing block 3 to reciprocate left and right relatively; and the first sealing block 2 and the second sealing block 3 are parallel to each other.
The first sealing block 2 and the second sealing block 3 are heat sealing blocks, and the heat sealing blocks need to clamp and heat the packaging bag 100 to be sealed when the sealing operation is performed; therefore, the first sealing block 2 and the second sealing block 3 are placed at both sides of the sealing space. When the top of the packaging bag 100 to be sealed is completely attached to the pressing block 4, the first sealing block 2 and the second sealing block 3 move towards each other, and clamp the packaging bag 100 to be sealed. It should be further noted that, after the first sealing block 2 and the second sealing block 3 are clamped and heated, a sealing line 300 is formed on the sealed packaging bag 200, and the formed sealing line 300 is parallel to the top edge of the sealed packaging bag 200; that is, the contact point of the first sealing block 2 and the second sealing block 3 is parallel to the lower surface of the pressing block 4. In this application, the first sealing block 2 and the second sealing block 3 may be heat sealing blocks.
Of course, in some embodiments, the closure assembly may also be: ultrasonic seal assembly, laser seal assembly or glue seal assembly.
Referring to fig. 3, in order to improve the assembly efficiency of the apparatus, in this embodiment, the top pressing block is disposed at the upper portion of the first sealing block 2 and extends toward the second sealing block 3. The top pressing block 4 is arranged on the upper surface of the first sealing block 2 and extends towards the second sealing block 3; that is, in the present embodiment, the pressing block 4 and the first sealing block 2 are formed in an inverted "L" shape. In some embodiments, the first sealing block 2 is integrally provided with the top pressure block 4.
Referring to fig. 2 to 4, in the present embodiment, the lower surface of the top pressing block is higher than the upper surface of the second sealing block 3. When the first sealing block 2 is attached to the second sealing block 3, the lower surface of the top pressing block 4 is placed on the upper surface of the second sealing block 3, and the lower surface of the top pressing block 4 is in contact with the upper surface of the second sealing block 3; that is, the formed seal line 300 coincides with the top edge of the sealed package 200. Of course, in certain embodiments, when the first sealing block 2 is attached to the second sealing block 3, the lower surface of the top pressing block 4 is placed above the upper surface of the second sealing block 3; that is, the sealing line 300 is formed with a certain distance from the top edge of the sealed package 200.
Referring to fig. 3, in this embodiment, the pressing block 4 has a pressing surface at a position on the lower surface thereof that is in pressing contact with the packaging bag 100 to be sealed; the position on the upper surface of the bag receiving seat 1 for supporting the packaging bag to be sealed is a supporting surface; the pressing block is arranged on the pressing contact surface in parallel with the bearing surface. It should be noted that, the packaging bag 100 to be sealed is placed on the bag receiving seat 1, and the bag receiving seat 1 is used for supporting and moving the packaging bag 100 to be sealed. The press contact position is the position when the packaging bag 100 to be sealed is attached to the pressing block 4; the bag receiving seat 1 supports the packaging bag 100 to be sealed to move upwards, and part of the top of the packaging bag 100 to be sealed is contacted with the pressing block 4, at this time, the packaging bag 100 to be sealed continuously applies force to the direction of the pressing block 4 under the action of the bag receiving seat 1, so that the packaging bag 100 to be sealed rotates around the part of the packaging bag 100 to be sealed, which is contacted with the pressing block 4, until the top of the packaging bag 100 to be sealed is completely attached to the lower surface of the pressing block 4.
In certain embodiments, to enhance equipment automation, the sealing mechanism further comprises a controller for performing the following steps after the bag to be sealed is placed in the bag receiving seat: controlling the sealing driving device to act so that the first sealing block and the second sealing block relatively move close to each other for the first time; controlling the lifting driving device to act, so that a bag receiving seat for supporting a packaging bag to be sealed and a pressing block above a bag mouth of the packaging bag to be sealed are relatively close to each other and move, the pressing block is in pressing contact with the top of the packaging bag to be sealed, the top of the packaging bag to be sealed is attached to a pressing contact surface of the pressing block, the position of the packaging bag to be sealed is adjusted and adjusted, and the pressing contact surface is a position on the lower surface of the pressing block, which is in pressing contact with the packaging bag to be sealed; and controlling the sealing driving device to act, so that the first sealing block and the second sealing block are relatively moved to the sealing position for the second time, and the sealing assembly seals the packaging bag to be sealed.
In the following examples, we will describe the technical solutions of the present application by taking tea packaging bags as an example.
Specifically, referring to fig. 1 to 5, the sealing mechanism for sealing the packaging bag includes a base, a bag receiving seat 1 mounted on the base, a first sealing block 2 and a second sealing block 3, wherein the first sealing block 2 and the second sealing block 3 are arranged at a transversely opposite interval, the first sealing block 2 and the second sealing block 3 are mounted on the base in a manner of being capable of being relatively and translationally bonded together, and the bag receiving seat 1 is located under a relatively and translationally bonded position of the first sealing block 2 and the second sealing block 3; the bag receiving seat 1 is installed on the machine base in a mode of being capable of ascending and descending, the first sealing block 2 is provided with a pressing block 4 facing the second sealing block 3, the lower surface of the pressing block 4 is higher than the top surface of the second sealing block 3, and the lower surface of the pressing block 4 is a straight surface.
The bottom surface of the first sealing block 2 is flush with the bottom surface of the second sealing block 3, the top surface of the first sealing block 2 is higher than the top surface of the second sealing block 3, an upper jacking block extending to the second sealing block 3 is convexly arranged on one surface of the upper portion of the first sealing block 2 facing the second sealing block 3, the top surface of the upper jacking block is flush with the top surface of the first sealing block 2, the height of the bottom surface of the upper jacking block on the machine base is in contact with the height of the top surface of the second sealing block 3 on the machine base, and the upper jacking block is the jacking block 4.
The pressing block 4 and the first sealing block 2 are integrally formed. The top block is a square block.
The pressing block 4 is locked with the first sealing block 2.
The top pressing block 4 is a square block, one side of the square block is stacked on the first sealing block 2 and is detachably mounted with the first sealing block 2, the other side of the square block extends to the second sealing block 3 and is positioned outside one side of the first sealing block 2, and the height of the bottom surface of the square block on the machine base is in up-down contact bearing with the height of the top surface of the second sealing block 3 on the machine base.
Referring to fig. 1, the sealing mechanism for sealing a package includes: the bag-connecting seat 1 is provided with a lower bottom plate and two side plates, the two side plates are transversely arranged at left and right sides of the top surface of the lower bottom plate in a opposite mode, the first sealing block 2 and the second sealing block 3 are transversely arranged at opposite intervals at left and right sides, the first sealing block 2 and the second sealing block 3 are mounted on the seat in a mode of being relatively and translationally bonded together, and the bag-connecting seat 1 is positioned right below the relatively and translationally bonded position of the first sealing block 2 and the second sealing block 3; the bag receiving seat 1 is installed on the machine seat in a mode of being capable of lifting up and down, the first sealing block 2 is provided with a pressing block 4 facing the second sealing block 3, the lower surface of the pressing block 4 is higher than the top surface of the second sealing block 3, and the lower surface of the pressing block 4 is a straight surface.
Specifically, a lifting cylinder or a motor is arranged below the lower bottom plate of the bag receiving seat 1, the cylinder body of the lifting cylinder is fixed on the machine base, the piston rod of the lifting cylinder is arranged upwards and fixedly connected with the lower bottom plate, and the lifting cylinder piston rod stretches to realize the up-and-down lifting translation of the bag receiving seat 1.
The first sealing block 2 and the second sealing block 3 are strip square blocks extending along the front-back direction of the machine base, the bottom surface of the first sealing block 2 is flush with the bottom surface of the second sealing block 3, the top surface of the first sealing block 2 is higher than the top surface of the second sealing block 3, one surface of the first sealing block 2 opposite to the second sealing block 3 is a heat sealing surface, the upper part of the heat cover of the first sealing block 2 is provided with an upper top block extending towards the second sealing block 3 (extending rightward), the upper top block is preferably integrally formed with the first sealing block 2, namely, the heat sealing surface of the first sealing block 2 is directly provided with the upper top block in a protruding mode, the square blocks are preferably adopted by the upper top block, the front end surface and the rear end surface of the upper top block are flush with the front end surface and the rear end surface of the first sealing block 2, the top surface of the upper top block is flush with the top surface of the first sealing block 2, the upper top surface of the upper top block is arranged on the machine base in a height of the machine base, namely, the upper top surface of the upper top block 3 is in contact with the top surface of the second sealing block 3 on the machine base, namely, the upper top surface of the upper top block is in contact with the top surface of the second sealing block 3 is in a translation mode, and the upper top surface of the top block is in contact with the top surface of the top block 4 of the top sealing block is matched with the top surface of the top block 2.
The limitation of the pressing block 4 and the upward translation of the bag receiving seat 1 are utilized before heat sealing to apply an upward pushing force on the top of the packaging bag 100 to be sealed, so that the standing posture of the packaging bag 100 to be sealed is displaced, the top of the packaging bag 100 to be sealed is finally matched with the lower surface of the pressing block 4, the top of the packaging bag 100 to be sealed is adjusted in a flat mode, and thus the sealing line (namely, the sealing line 300) formed by the first sealing block 2 and the second sealing block 3 through hot pressing is arranged in parallel with the top of the sealed packaging bag 200, the hot pressing line of the tea sealed packaging bag 200 can ensure to be in a flat effect, and the package appearance of the tea sealed packaging bag 200 is effectively ensured.
In this application, the top briquetting 4 also can lock together with the first piece 2 that seals, specifically, the top briquetting 4 is square block, the left side of square block stacks on the top surface right side of first piece 2 that seals and with first piece 2 dismantlement, the right side of square block stretches to the second and seals piece 3 to be located outside the right side of first piece 2 that seals, the bottom surface of square block is the height at place on the frame with the top surface of second piece 3 that seals place in the frame is the upper and lower looks and pastes the setting, and the second seals piece 3 translation to the top surface of second piece 3 and the bottom surface of square block when locating under the square block mutually close the tight fit.
Referring to fig. 1, a packaging bag 100 to be sealed falls into a bag receiving seat 1, and the upper part of the packaging bag 100 to be sealed falls into a range between a first sealing block 2 and a second sealing block 3;
step two, referring to fig. 2, the first sealing block 2 and the second sealing block 3 translate in opposite directions, when the left edge of the second sealing block 3 is abutted against the right edge of the top pressing block 4 up and down, the first sealing block 2 and the second sealing block 3 stop translating, the first sealing block 2, the second sealing block 3 and the top pressing block 4 enclose a square space with the bottom surface, the front side surface and the rear side surface of the square space being open, and at the moment, the top of the packaging bag 100 to be sealed in the bag receiving seat 1 is placed in the square space;
step three, referring to fig. 3, the lifting cylinder is started, the bag receiving seat 1 translates upwards, along with the upward movement of the bag receiving seat 1, until the top of the to-be-sealed packaging bag 100 is in close fit with the lower surface of the top pressing block 4, when the top of the to-be-sealed packaging bag 100 moves upwards, the bottom edge of the to-be-sealed packaging bag 100 is in a sealed state, so that the cross section of the top of the to-be-sealed packaging bag 100 is larger than the cross section of the bottom edge of the to-be-sealed packaging bag 100, the bending resistance of the top of the to-be-sealed packaging bag 100 is obviously larger than the bending force of the bottom edge of the to-be-sealed packaging bag 100, and thus, when the top of the to-be-sealed packaging bag 100 is close to the lower surface of the top pressing block 4, the bag receiving seat 1 translates upwards again, and at the moment, the top of the to-be-sealed packaging bag 100 is subjected to upward holding force, so that the standing posture of the to-be-sealed packaging bag 100 can gradually displace until the top of the to-be-sealed packaging bag 100 is in a straight state and is in close fit with the top pressing block 4;
fourth, referring to fig. 4, the second sealing block 3 translates to the first sealing block 2 and is attached to the first sealing block 2, so as to complete the heat sealing operation of the packaging bag 100 to be sealed, and obtain the finished sealed packaging bag 200;
in step five, referring to fig. 5, the first sealing block 2 and the second sealing block 3 are translated oppositely, and a heat sealing line (i.e. sealing line 300) is formed on the top of the sealed packaging bag 200, and the heat sealing line and the top edge of the sealed packaging bag 200 are parallel and parallel to the bottom plate of the bag receiving seat 1.
The above embodiments can be applied to packaging bags for solid contents of various forms such as other powders, pellets, blocks, and ropes, and packaging bags for contents such as liquids and gels, in addition to tea packaging bags.
It should be noted that, although the foregoing embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concepts of the present invention, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims (21)

1. A sealing mechanism for sealing a package, comprising: the sealing device comprises a bag receiving seat, a pressing block, a lifting driving mechanism and a sealing assembly;
the bag receiving seat is arranged below the pressing block, and a sealing space for accommodating the packaging bag to be sealed is arranged between the bag receiving seat and the pressing block;
wherein the bag receiving seat is used for supporting the bottom of the packaging bag to be sealed, the pressing block is used for pressing the top of the packaging bag to be sealed, the bag receiving seat and/or the pressing block are in transmission connection with the lifting driving mechanism, the bag receiving seat and/or the pressing block can be driven by the driving mechanism to enable the bag receiving seat and/or the pressing block to reciprocate up and down relatively, when the pressing block presses and touches the packaging bag to be sealed, the packaging bag to be sealed with the inclined position is aligned by the action force between the lower surface of the pressing block and the top of the packaging bag to be sealed and the action force between the upper surface of the bag receiving seat and the bottom of the packaging bag to be sealed, so that the top of the packaging bag to be sealed is attached to the pressing block;
the sealing assembly is arranged on the side face of the sealing space and is used for sealing the packaging bag to be sealed.
2. The sealing mechanism for a package seal of claim 1, wherein said seal assembly comprises: the packaging bag sealing device comprises a first sealing block, a second sealing block and a sealing driving mechanism, wherein the first sealing block and the second sealing block are oppositely arranged at two sides of a sealing space, a packaging bag to be sealed is contained between the first sealing block and the second sealing block, the first sealing block and/or the second sealing block are in transmission connection with the sealing driving mechanism, and the first sealing block and/or the second sealing block are configured to enable the first sealing block and the second sealing block to reciprocate left and right under the driving of the sealing driving mechanism.
3. The sealing mechanism for sealing a package as recited in claim 2, wherein said top pressure block is disposed above said first sealing block and extends in a direction toward said second sealing block.
4. A sealing mechanism for a package seal as recited in claim 3, wherein a lower surface of said top pressure block is higher than an upper surface of said second sealing block.
5. A sealing mechanism for a package seal according to claim 2 or 3, wherein the first sealing block is integrally provided with the top pressure block.
6. The sealing mechanism for sealing a package according to any one of claims 2 to 4, further comprising a controller for performing the following steps after the package to be sealed is placed on the bag receiving seat:
controlling the sealing driving device to act so that the first sealing block and the second sealing block relatively move close to each other for the first time;
controlling the lifting driving device to act, so that a bag receiving seat for supporting a packaging bag to be sealed and a pressing block above a bag mouth of the packaging bag to be sealed are relatively close to each other and move, the pressing block is in pressing contact with the top of the packaging bag to be sealed, the top of the packaging bag to be sealed is attached to a pressing contact surface of the pressing block, the position of the packaging bag to be sealed is adjusted and adjusted, and the pressing contact surface is a position on the lower surface of the pressing block, which is in pressing contact with the packaging bag to be sealed;
and controlling the sealing driving device to act, so that the first sealing block and the second sealing block are relatively moved to the sealing position for the second time, and the sealing assembly seals the packaging bag to be sealed.
7. The sealing mechanism for sealing a package of claim 5, further comprising a controller for performing the following steps after the package to be sealed is placed on the bag receiving receptacle:
controlling the sealing driving device to act so that the first sealing block and the second sealing block relatively move close to each other for the first time;
controlling the lifting driving device to act, so that a bag receiving seat for supporting a packaging bag to be sealed and a pressing block above a bag mouth of the packaging bag to be sealed are relatively close to each other and move, the pressing block is in pressing contact with the top of the packaging bag to be sealed, the top of the packaging bag to be sealed is attached to a pressing contact surface of the pressing block, the position of the packaging bag to be sealed is adjusted and adjusted, and the pressing contact surface is a position on the lower surface of the pressing block, which is in pressing contact with the packaging bag to be sealed;
and controlling the sealing driving device to act, so that the first sealing block and the second sealing block are relatively moved to the sealing position for the second time, and the sealing assembly seals the packaging bag to be sealed.
8. A sealing mechanism for a package as claimed in claim 1, wherein,
the position on the lower surface of the pressing block, which is in press contact with the packaging bag to be sealed, is a press contact surface;
the position on the upper surface of the bag receiving seat for supporting the packaging bag to be sealed is a supporting surface;
the pressing contact surface is parallel to the bearing surface.
9. The sealing mechanism for a package seal of claim 1, wherein said seal assembly is: an ultrasonic seal assembly, a laser seal assembly, or a heat seal assembly.
10. The sealing mechanism for sealing a package according to claim 1, wherein the pressing block is fixedly arranged in a height direction, and the bag receiving seat is in transmission connection with the lifting driving mechanism and is configured to reciprocate up and down under the driving of the driving mechanism.
11. A packaging machine having a sealing mechanism for sealing a package as claimed in any one of claims 1 to 10.
12. A packaging bag sealing process, which is characterized by comprising the following steps:
placing the packaging bag to be sealed on a bag receiving seat;
the method comprises the steps that a bag receiving seat for supporting a packaging bag to be sealed and a pressing block above a bag opening of the packaging bag to be sealed are relatively close to each other and move, the pressing block is in pressing contact with the top of the packaging bag to be sealed, so that the top of the packaging bag to be sealed is attached to a pressing contact surface of the pressing block, the position of the packaging bag to be sealed is adjusted and adjusted, and the pressing contact surface is a position on the lower surface of the pressing block, which is in pressing contact with the packaging bag to be sealed;
the sealing assembly seals the packaging bag to be sealed.
13. The process for sealing the packaging bag according to claim 12, wherein a bag receiving seat for supporting the packaging bag to be sealed and a pressing block above a bag mouth of the packaging bag to be sealed are relatively moved to a preset distance in a close manner, the pressing block is in pressing contact with the top of the packaging bag to be sealed, so that the top of the packaging bag to be sealed is attached to a pressing contact surface of the pressing block, and the position of the packaging bag to be sealed is adjusted and aligned; or (b)
The bag receiving seat for supporting the packaging bag to be sealed and the pressing block above the bag mouth of the packaging bag to be sealed are relatively close to each other and move, and the pressing block is pressed against the top of the packaging bag to be sealed to a preset pressure, so that the pressing contact surface of the top of the packaging bag to be sealed and the pressing block is attached, and the position of the packaging bag to be sealed is adjusted and adjusted.
14. The package sealing process according to claim 12, wherein in the step of sealing the package to be sealed by the sealing assembly, further comprising the steps of:
the first sealing block and the second sealing block relatively move close to each other until the first sealing block and the second sealing block relatively move to the sealing position, and the bag mouth of the packaging bag to be sealed positioned between the first sealing block and the second sealing block is sealed.
15. The package bag sealing process according to claim 14, wherein the first sealing block and the second sealing block are moved relatively close for the first time before the bag receiving seat for supporting the package bag to be sealed and the pressing block above the mouth of the package bag to be sealed are moved relatively close;
the step of sealing the packaging bag to be sealed by the sealing assembly comprises the steps of relatively moving the first sealing block and the second sealing block for the second time until the first sealing block and the second sealing block relatively move to the sealing position, and sealing the opening of the packaging bag to be sealed positioned between the first sealing block and the second sealing block.
16. The sealing mechanism for sealing the packaging bag is characterized by comprising a machine base, a bag receiving seat, a first sealing block and a second sealing block, wherein the bag receiving seat, the first sealing block and the second sealing block are arranged on the machine base, the first sealing block and the second sealing block are transversely arranged at opposite intervals, the first sealing block and the second sealing block are arranged on the machine base in a mode of being capable of being relatively and horizontally bonded together, and the bag receiving seat is positioned under a relatively and horizontally bonded position of the first sealing block and the second sealing block; the bag receiving seat is arranged on the machine base in a mode of being capable of lifting up and down, a pressing block facing to the second sealing block is arranged on the first sealing block, the lower surface of the pressing block is higher than the top surface of the second sealing block, and the lower surface of the pressing block is a straight surface;
when the pressing block presses and touches the packaging bag to be sealed, the packaging bag to be sealed with the inclined position is aligned through the acting force between the lower surface of the pressing block and the top of the packaging bag to be sealed and the acting force between the upper surface of the bag receiving seat and the bottom of the packaging bag to be sealed, so that the top of the packaging bag to be sealed is attached to the pressing block.
17. The sealing mechanism for sealing a package bag according to claim 16, wherein the bottom surface of the first sealing block is flush with the bottom surface of the second sealing block, the top surface of the first sealing block is higher than the top surface of the second sealing block, an upper top block extending to the second sealing block is arranged on one surface of the upper portion of the first sealing block facing the second sealing block in a protruding manner, the top surface of the upper top block is flush with the top surface of the first sealing block, the height of the bottom surface of the upper top block on the machine base is in up-down contact connection with the height of the top surface of the second sealing block on the machine base, and the upper top block is the top pressing block.
18. The sealing mechanism for a package seal of claim 17, wherein said top pressure block is integrally formed with said first sealing block.
19. The sealing mechanism for a package as recited in claim 17, wherein said top block is a square block.
20. The sealing mechanism for a package seal of claim 16 wherein said top pressure block is locked with said first sealing block.
21. The sealing mechanism for sealing bags according to claim 20, wherein the top pressing block is a square block, one side of the square block is stacked on the first sealing block and is detachably mounted with the first sealing block, the other side of the square block extends to the second sealing block and is located outside one side of the first sealing block, and the height of the bottom surface of the square block on the machine base is in up-down contact with the height of the top surface of the second sealing block on the machine base.
CN202111080922.4A 2021-06-03 2021-09-15 Packaging machine, sealing mechanism and process for sealing packaging bags Active CN113734531B (en)

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