CN220130511U - Thermoplastic sealing mechanism for plastic packaging bag - Google Patents
Thermoplastic sealing mechanism for plastic packaging bag Download PDFInfo
- Publication number
- CN220130511U CN220130511U CN202321073724.XU CN202321073724U CN220130511U CN 220130511 U CN220130511 U CN 220130511U CN 202321073724 U CN202321073724 U CN 202321073724U CN 220130511 U CN220130511 U CN 220130511U
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- China
- Prior art keywords
- workbench
- frame
- sealing mechanism
- bottom frame
- pressing
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- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 239000004033 plastic Substances 0.000 title claims abstract description 55
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 19
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 19
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Package Closures (AREA)
Abstract
The utility model provides a thermoplastic sealing mechanism for plastic packaging bags, which relates to the technical field of thermoplastic sealing of packaging bags and comprises a workbench, wherein a slide bar is arranged at the top of the workbench, a spring rod is arranged at the top of the workbench, a bottom frame is arranged at the top of the spring rod, a pressing frame is arranged at the top of the bottom frame, a sealing strip is arranged on the inner wall of the pressing frame, a rotary pressing rod is arranged at the top of the slide bar, the bottom frame is pushed higher than the workbench by the spring rod, when an operator pushes the sealing strip to move downwards by using the rotary pressing rod, the pressing frame is driven to move along when the sealing strip moves downwards, the pressing frame is firstly contacted with the bottom frame when the sealing strip moves with the pressing frame, and the plastic bag at the top of the bottom frame is clamped and pushed downwards when the sealing strip contacts with the workbench until the plastic bag at the bottom of the plastic bag stops moving downwards when the bottom of the plastic bag contacts with the workbench, and the rest plastic bags continue to move downwards until the sealing strip moves to contact with the workbench to finally seal the plastic bag, and smoothness and flatness of the plastic bag at the sealing part are ensured.
Description
Technical Field
The utility model relates to the technical field of thermoplastic sealing of packaging bags, in particular to a thermoplastic sealing mechanism of a plastic packaging bag.
Background
The plastic bag sealing machine is one kind of equipment for melting and solidifying plastic bag mouth with heat and has the action principle that the plastic bag mouth is set between two pressing plates of the plastic bag sealing machine, one pressing plate has heating wire attached to the surface, and after the plastic bag is set, the upper and lower pressing plates clamp and heat the plastic bag mouth via heating wire, and after certain time, the upper and lower pressing plates are separated to cut off the heating wire and solidify the plastic bag in the melting position.
As shown in fig. 1, in the prior art, when the thermoplastic sealing mechanism for the plastic packaging bag is used, firstly, a plastic bag opening needs to be manually placed between two pressing plates, the manually placed plastic bag is difficult to avoid to be slightly loosened, the loosened plastic bag is easy to generate wrinkles during clamping work in sealing processing, the wrinkles easily cause sealing failure, and the sealing position is provided with wrinkles to reduce firmness, so that sealing effect is affected.
Disclosure of Invention
The utility model aims to solve the following problems in the prior art:
the existing thermoplastic sealing mechanism for plastic packaging bags firstly needs to manually put a plastic bag opening between two pressing plates when in use, the manually placed plastic bag is difficult to avoid to be slightly loosened, the loosened plastic bag is easy to fold during clamping operation in sealing processing, the folding easily causes sealing failure, and the sealing position is provided with folds to reduce firmness and influence sealing effect.
In order to solve the problems in the prior art, the utility model provides a thermoplastic sealing mechanism for a plastic packaging bag, which comprises a workbench, wherein a sliding rod is arranged at the top of the workbench, a spring rod is arranged at the top of the workbench, a bottom frame is arranged at the top of the spring rod, a pressing frame is arranged at the top of the bottom frame, sealing strips are arranged on the inner wall of the pressing frame, and a rotary pressing rod is arranged at the top of the sliding rod.
Preferably, the two sliding rods are arranged on two sides of the top of the workbench respectively, and positioning grooves are formed in one opposite sides of the two sliding rods.
Preferably, the workbench comprises a bottom plate and a bearing strip arranged at the top of the bottom plate, wherein the two sliding rods are arranged on the surface of the bottom plate, and the bearing strip is arranged on one side of the two sliding rods opposite to each other.
Preferably, the bottom of the bottom frame is provided with a hole, the spring rod is arranged in the hole, and the bottom frame covers the sliding rod inside.
Preferably, the top of the bottom frame is provided with a spring, the top of the spring is connected with the pressing frame, and a space is reserved between the pressing frame and the bottom frame when the spring is in a compressed state.
Preferably, the rotary compression bar comprises a horizontal bar and a manual bar, the horizontal bar is arranged between the two sliding bars, the manual bar is arranged at the tail end of the horizontal bar and is integrally L-shaped, a cam is arranged on the surface of the horizontal bar, and the cam is parallel to the workbench.
Preferably, the top level of the bottom frame is higher than the top of the bearing strip in the workbench, and the bottom of the pressing frame and the bottom of the sealing strip are positioned on the same horizontal plane.
Preferably, a pushing block is arranged on one side, close to the cam, of the top of the sealing strip, a smooth chamfer is arranged at the edge of the pushing block, and an arc-shaped groove is formed in the top of the pushing block.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the bottom frame is pushed to be higher than the workbench through the spring rod, when the plastic bag sealing machine is used, an operator pushes the sealing strip to move downwards through the rotary pressure rod, the sealing strip drives the pressing frame to move along with the sealing strip when moving downwards, the sealing strip is firstly contacted with the bottom frame when moving with the pressing frame, the plastic bag at the top of the bottom frame is clamped and pushed downwards when contacting, until the contact part of the plastic bag and the workbench stops moving downwards after the bottom of the plastic bag contacts with the workbench, the rest plastic bags continue to move downwards, so that the plastic bag is tensioned until the sealing strip moves to contact with the workbench, the sealing strip heats, the mouth of the plastic bag can be melted, the melting position of the plastic bag is solidified again, the plastic bag is sealed finally, and the smoothness and flatness of the plastic bag at the sealing part are ensured.
Drawings
FIG. 1 is a schematic view of a thermoplastic sealing mechanism of a prior art plastic package;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the structure of the present utility model;
FIG. 4 is an exploded view of the structure of the present utility model;
reference numerals: 1. a work table; 2. a slide bar; 3. a spring rod; 4. a bottom frame; 5. pressing a frame; 6. a sealing strip; 7. and rotating the compression bar.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.
Specific embodiments of the present utility model are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, a thermoplastic sealing mechanism for plastic packaging bags is assembled by the following components:
and (3) assembly description: firstly, a slide bar 2 is arranged at the top of a workbench 1, a spring rod 3 is arranged at the top of the workbench 1, a bottom frame 4 is arranged at the top of the spring rod 3, a pressing frame 5 is arranged at the top of the bottom frame 4 through a spring, a sealing strip 6 is arranged on the inner wall of the pressing frame 5, and finally a rotary pressing rod 7 is arranged at the top of the slide bar 2.
Description of working principle: firstly, an operator pushes the sealing strip 6 to move downwards by using the rotary compression rod 7, the pressing frame 5 is driven to move along when the sealing strip 6 moves downwards, the pressing frame 5 is firstly contacted with the bottom frame 4 when the sealing strip 6 moves with the pressing frame 5, and the plastic bag at the top of the bottom frame 4 is clamped and pushed downwards when the sealing strip 6 contacts with the bottom frame 4 until the contact part of the plastic bag and the workbench 1 stops moving downwards after the bottom of the plastic bag contacts with the workbench 1, the rest plastic bags continue to move downwards, the plastic bags are stretched until the sealing strip 6 moves to contact with the workbench 1, the sealing strip 6 heats, the mouth of the plastic bag can be melted, the melting position of the plastic bag is resolidified, and finally the plastic bag is sealed.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a plastic packaging bag thermoplastic sealing mechanism, includes workstation (1), its characterized in that: the automatic sealing device is characterized in that a sliding rod (2) is arranged at the top of the workbench (1), a spring rod (3) is arranged at the top of the workbench (1), a bottom frame (4) is arranged at the top of the spring rod (3), a pressing frame (5) is arranged at the top of the bottom frame (4), a sealing strip (6) is arranged on the inner wall of the pressing frame (5), and a rotary pressing rod (7) is arranged at the top of the sliding rod (2).
2. The thermoplastic sealing mechanism of a plastic package of claim 1, wherein: the two sliding rods (2) are arranged at two sides of the top of the workbench (1), and positioning grooves are formed in one opposite sides of the two sliding rods (2).
3. A thermoplastic sealing mechanism for plastic packages as defined in claim 2, wherein: the workbench (1) comprises a bottom plate and bearing strips arranged at the top of the bottom plate, two sliding rods (2) are arranged on the surface of the bottom plate, and the bearing strips are arranged on one side of the two sliding rods (2) in opposite directions.
4. The thermoplastic sealing mechanism of a plastic package of claim 1, wherein: the bottom of the bottom frame (4) is provided with a hole, the spring rod (3) is arranged in the hole, and the bottom frame (4) covers the sliding rod (2) inside.
5. The thermoplastic sealing mechanism of a plastic package of claim 1, wherein: the top of the bottom frame (4) is provided with a spring, the top of the spring is connected with the pressing frame (5), and a space is reserved between the pressing frame (5) and the bottom frame (4) in a compressed state.
6. A thermoplastic sealing mechanism for plastic packages as defined in claim 2, wherein: the rotary compression bar (7) comprises a horizontal bar and a manual bar, the horizontal bar is arranged between the two sliding bars (2), the manual bar is arranged at the tail end of the horizontal bar and is integrally L-shaped, a cam is arranged on the surface of the horizontal bar, and the cam is parallel to the workbench (1).
7. The thermoplastic sealing mechanism of a plastic package of claim 1, wherein: the top horizontal height of the bottom frame (4) is higher than the top of the bearing strip in the workbench (1), and the bottom of the pressing frame (5) and the bottom of the sealing strip (6) are positioned on the same horizontal plane.
8. A thermoplastic sealing mechanism for plastic packaging bags according to any one of claims 1-6, wherein: one side of the top of the sealing strip (6) close to the cam is provided with a push block, the edge of the push block is provided with a smooth chamfer, and the top of the push block is provided with an arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321073724.XU CN220130511U (en) | 2023-05-08 | 2023-05-08 | Thermoplastic sealing mechanism for plastic packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321073724.XU CN220130511U (en) | 2023-05-08 | 2023-05-08 | Thermoplastic sealing mechanism for plastic packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220130511U true CN220130511U (en) | 2023-12-05 |
Family
ID=88953871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321073724.XU Active CN220130511U (en) | 2023-05-08 | 2023-05-08 | Thermoplastic sealing mechanism for plastic packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220130511U (en) |
-
2023
- 2023-05-08 CN CN202321073724.XU patent/CN220130511U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |