CN114655516A - Heat sealing process of polyethylene blood bag - Google Patents
Heat sealing process of polyethylene blood bag Download PDFInfo
- Publication number
- CN114655516A CN114655516A CN202210268485.7A CN202210268485A CN114655516A CN 114655516 A CN114655516 A CN 114655516A CN 202210268485 A CN202210268485 A CN 202210268485A CN 114655516 A CN114655516 A CN 114655516A
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- Prior art keywords
- blood bag
- polyethylene
- heat
- plate
- blood
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- 239000008280 blood Substances 0.000 title claims abstract description 102
- 210000004369 blood Anatomy 0.000 title claims abstract description 102
- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 38
- -1 polyethylene Polymers 0.000 title claims abstract description 38
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 239000000498 cooling water Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 15
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/32—Cooling, or cooling and pressing, package closures after heat-sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B2051/105—Heat seal temperature control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
A heat seal process of a polyethylene blood bag belongs to the technical field of blood packaging, and is realized based on a polyethylene pressure-bearing blood bag heat seal machine, the heat sealing machine comprises a frame, guide upright columns respectively arranged at four corners of the frame, a supporting top plate positioned on the upper end surfaces of the guide upright columns, an operation mounting plate arranged on the guide upright columns and provided with vertical position freedom, a vertical displacement driving mechanism arranged on the supporting top plate and connected with the operation mounting plate, an operation table arranged on the upper end surface of the frame and a matched blood bag fixing plate, the lower end surface of the operation mounting plate is provided with a heating mechanism matched with the shape of the heat seal line of the blood heat bag and a matched flattening mechanism, the flattening mechanism comprises a flattening plate and a cooling pipeline, the flattening plate is arranged on the lower end face of the operation mounting plate by means of a guide column and a spring, the cooling pipeline is arranged in the flattening plate, and an outlet and an inlet of the cooling pipeline are connected with an external cooling water circulating device; the heat sealing process comprises the process steps of realizing the heat sealing process by means of the blood bag fixing plate, the heating mechanism, the flattening mechanism and matched process conditions. The heat sealing machine and the process are improved, so that the thickness of the heat sealing line of the polyethylene pressure-bearing blood bag is consistent, and the pressure-bearing capacity of the blood bag is ensured not to be reduced.
Description
Technical Field
The invention belongs to the technical field of blood packaging, and particularly relates to a heat sealing process of a polyethylene blood bag.
Background
Blood is donated voluntarily by blood donor, collected by blood collecting mechanism, and separated by special blood collecting bag to preserve bioactive substances. Particularly, a polyethylene pressure-bearing blood bag in the blood bag is based on the existing heat sealing mode, the phenomenon of uneven thickness of a heat sealing line is easy to generate at the bonding part of the polyethylene pressure-bearing blood bag, and the finished blood bag is cracked when the blood bag is pressurized and heated. Therefore, how to improve the heat sealing mode of the pressure-bearing blood bag becomes a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem of providing a heat sealing process of a polyethylene blood bag, and the heat sealing machine and the process are improved to ensure that the thickness of a heat sealing line of the polyethylene pressure-bearing blood bag is consistent and the pressure-bearing capacity of the blood bag is not reduced.
The technical scheme adopted by the invention is as follows: a heat seal process of a polyethylene blood bag is realized based on a polyethylene pressure-bearing blood bag heat seal machine, the heat sealing machine comprises a frame, guide upright columns respectively arranged at four corners of the frame, a supporting top plate positioned on the upper end surfaces of the guide upright columns, an operation mounting plate arranged on the guide upright columns and provided with vertical position freedom, a vertical displacement driving mechanism arranged on the supporting top plate and connected with the operation mounting plate, an operation table arranged on the upper end surface of the frame and a matched blood bag fixing plate, the lower end surface of the operation mounting plate is provided with a heating mechanism matched with the blood bag heat-seal line in shape and a matched flattening mechanism, the flattening mechanism comprises a flattening plate arranged on the lower end face of the operation mounting plate by means of a guide post and a spring, and a cooling pipeline arranged in the flattening plate, wherein an outlet and an inlet of the cooling pipeline are connected with an external cooling water circulating device;
the heat seal process comprises the following process steps:
A. placing the polyethylene blood bag blank on a blood bag fixing plate and positioning;
B. placing the blood bag fixing plate on an operation table and positioning;
C. starting the heating mechanism and keeping the heat sealing temperature of the heating mechanism at 150-160 ℃;
D. starting the vertical displacement driving mechanism to drive the heating mechanism and the flattening mechanism to move downwards until the heating mechanism and the flattening mechanism contact with the blood bag fixing plate, so that the pressure applied to the polyethylene blood bag blank is kept at 2-3Mpa for 8-9 s;
E. and (4) moving the blood bag fixing plate out of the operating table, and then taking out the polyethylene blood bag to finish the heat sealing process of the blood bag.
The temperature of the pressboard is kept at 15-25 ℃ by means of a cooling pipeline.
Further, the heating mechanism comprises a heat conduction base body matched with the shape of the blood bag heat sealing line and a heating wire arranged in the heat conduction base body.
Furthermore, be equipped with in the operation panel and dodge the hole of dodging of blood business turn over coupling in the blood bag, be equipped with the limiting plate that is used for fixing a position the L type of blood bag fixed plate in operation panel up end border position.
Furthermore, the blood bag fixing plate comprises a substrate, a handle, positioning columns arranged at four corners of the substrate, and heat insulation cloth arranged on the substrate, wherein a heat insulation layer is attached to the upper end face of the substrate; the blood bag is positioned between the substrate and the heat insulation cloth by the positioning column.
Furthermore, the heat insulation cloth and the heat insulation layer are made of Teflon high-temperature-resistant sealing cloth.
Further, the arrangement form of the cooling pipeline in the pressing plate is a U-shaped pipe series connection mode.
The beneficial effects produced by the invention are as follows: by improving the heat seal mode, the thickness of the heat seal line of the polyethylene pressure-bearing blood bag is consistent, and the pressure-bearing capacity of the blood bag is ensured not to be reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the platen;
FIG. 3 is a schematic view of the structure of the operation table;
FIG. 4 is a schematic view of the blood bag fixing plate without a polyethylene blood bag blank;
FIG. 5 is a sectional view showing the position of the base plate in the blood bag fixing plate;
fig. 6 is a bottom view of the heating mechanism.
Detailed Description
Referring to fig. 1-6, a heat seal process of polyethylene blood bag is realized based on polyethylene pressure-bearing blood bag heat seal machine, the heat seal machine includes frame 1, the direction stand 2 that sets up respectively in 1 four corners position of frame, the support roof 3 of location at 2 up end of direction stand, the setting has the operation mounting panel 4 of vertical position degree of freedom on direction stand 2, the setting is on support roof 3 and the vertical displacement actuating mechanism 5 of being connected with operation mounting panel 4 and the operation panel 6 and supporting blood bag fixed plate 7 of setting at 1 up end of frame, its characterized in that: a heating mechanism 8 matched with the blood bag heat seal line in shape and a matched flattening mechanism are arranged on the lower end face of the operation mounting plate 4, the flattening mechanism 9 comprises a flattening plate 9-3 arranged on the lower end face of the operation mounting plate 4 by means of a guide column 9-1 and a spring 9-2, and a cooling pipeline 9-4 arranged in the flattening plate 9-3, and an outlet and an inlet of the cooling pipeline 9-4 are connected with an external cooling water circulating device;
the heat seal process comprises the following process steps:
A. placing the polyethylene blood bag blank on the blood bag fixing plate 7 and positioning;
B. placing and positioning the blood bag fixing plate 7 on the operation table 6;
C. starting the heating mechanism 8 and keeping the heat sealing temperature of the heating mechanism 8 at 150-;
D. starting the vertical displacement driving mechanism 5 to drive the heating mechanism 8 and the flattening mechanism 9 to move downwards until the heating mechanism and the flattening mechanism contact with the blood bag fixing plate 7, so that the pressure applied to the polyethylene blood bag blank is kept at 2-3Mpa for 8-9 s;
E. and (4) removing the blood bag fixing plate 7 from the operation table 6, and then taking out the polyethylene blood bag to finish the heat sealing process of the blood bag.
Referring to fig. 2, the cooling pipeline 9-4 is arranged in the pressing plate 9-3 in a U-shaped pipe series connection mode; the temperature of the platen 9-3 is maintained at 15-25 ℃ by means of a cooling line 9-4.
Referring to fig. 6, the heating mechanism 8 comprises a heat conducting base 8-1 matched with the shape of a blood bag heat sealing line and a heating wire 8-2 arranged in the heat conducting base 8-1. The heating mechanism 8 is electrified to be in contact heating, the polyethylene blood bag heat sealing line part is separated and cooled, the heat can be guaranteed not to influence the material of the blood bag, the blood pressing bag structure is added, and when the heat sealing blood bag packaging bag is guaranteed, the position is accurate, and the heat sealing is stable.
The cooling pipeline 9-4 arranged in the pressing plate 9-3 is beneficial to further improving the heat sealing effect of the heat sealing line, so that when the heating mechanism 8 is heated, the influence on the material of the blood bag is further reduced, and the structural strength of the blood bag is improved.
Referring to fig. 3, an avoiding hole for avoiding the connection of the blood inlet and outlet pipes in the blood bag is arranged in the operating table 6, and an L-shaped limiting plate 6-1 for positioning a blood bag fixing plate 7 is arranged at the edge of the upper end face of the operating table 6.
Referring to fig. 4 and 5, the blood bag fixing plate 7 comprises a substrate 7-1, a handle 7-2, positioning columns 7-3 arranged at four corners of the substrate 7-1, and heat insulation cloth 7-4 arranged on the substrate 7-1, wherein a heat insulation layer is attached to the upper end surface of the substrate 7-1; the blood bag is positioned between the base plate 7-1 and the heat insulating cloth 7-4 by means of the positioning column 7-3. The heat insulation cloth 7-4 and the heat insulation layer 7-5 are made of Teflon high-temperature-resistant sealing cloth.
Placing the polyethylene blood bag blank on the substrate 7-1 by means of the positioning column 7-3, and adding the heat insulation cloth 7-4 into the polyethylene blood bag blank; the blood bag fixing plate 7 is positioned on the operation table 6 by an L-shaped limiting plate 6-1. Starting the heating mechanism 8, and heating the heat conduction matrix 8-1 to 150-160 ℃ by the heating wire 8-2; starting the vertical displacement driving mechanism 5, leading the lower end faces of the heating mechanism 8 and the flattening mechanism to be assisted by 7-4 parts of heat insulation cloth, keeping the pressure at 2-3Mpa for 8-9s, and then leading the heating mechanism 8 and the matched flattening mechanism to be reset by the vertical displacement driving mechanism 5; and (4) moving out the blood bag fixing plate 7, and detaching the heat-insulating cloth 7-4 and the polyethylene blood bag to finish the heat sealing action of the polyethylene blood bag.
Claims (7)
1. The utility model provides a heat seal technology of polyethylene blood bag, is based on the realization of polyethylene pressure-bearing blood bag heat-sealing machine, the heat-sealing machine includes frame (1), set up respectively at direction stand (2) of frame (1) four corners position, support roof (3) of location at direction stand (2) up end, set up on direction stand (2) have perpendicularly to operation mounting panel (4) of position degree of freedom, set up on support roof (3) and with vertical displacement actuating mechanism (5) that operation mounting panel (4) are connected and set up operation panel (6) and supporting blood bag fixed plate (7) at frame (1) up end, its characterized in that: a heating mechanism (8) matched with the blood bag heat-seal line in shape and a matched flattening mechanism are arranged on the lower end face of the operation mounting plate (4), the flattening mechanism comprises a flattening plate (9-3) arranged on the lower end face of the operation mounting plate (4) by means of a guide column (9-1) and a spring (9-2), and a cooling pipeline (9-4) arranged in the flattening plate (9-3), and an outlet and an inlet of the cooling pipeline (9-4) are connected with an external cooling water circulating device;
the heat sealing process comprises the following process steps:
A. placing the polyethylene blood bag blank on a blood bag fixing plate (7) and positioning;
B. placing the blood bag fixing plate (7) on an operation table (6) and positioning;
C. starting the heating mechanism (8) and keeping the heat sealing temperature of the heating mechanism (8) at 150-;
D. starting the vertical displacement driving mechanism (5) to drive the heating mechanism (8) and the flattening mechanism to move downwards until the heating mechanism contacts with the blood bag fixing plate (7), so that the pressure applied to the polyethylene blood bag blank is kept at 2-3Mpa for 8-9 s;
E. and (3) removing the blood bag fixing plate (7) from the operating table (6), and then taking out the polyethylene blood bag to finish the heat sealing process of the blood bag.
2. The heat sealing process of polyethylene blood bags according to claim 1, characterized in that: the temperature of the platen (9-3) is maintained at 15-25 ℃ by means of a cooling line (9-4).
3. The heat sealing process of polyethylene blood bags according to claim 1, characterized in that: the heating mechanism (8) comprises a heat conduction base body (8-1) matched with the shape of a blood bag heat sealing line and a heating wire (8-2) arranged in the heat conduction base body (8-1).
4. The heat sealing process of polyethylene blood bags according to claim 1, characterized in that: be equipped with in operation panel (6) and dodge hole (6-2) of dodging blood bag blood business turn over coupling, be equipped with limiting plate (6-1) that is used for fixing a position the L type of blood bag fixed plate (7) in operation panel (6) up end border position.
5. The heat sealing process of polyethylene blood bags according to claim 1, characterized in that: the blood bag fixing plate (7) comprises a base plate (7-1), a handle (7-2), positioning columns (7-3) arranged at four corners of the base plate (7-1), and heat insulation cloth (7-4) arranged on the base plate (7-1), wherein a heat insulation layer (7-5) is attached to the upper end face of the base plate (7-1); the blood bag is positioned between the base plate (7-1) and the heat insulation cloth (7-4) by means of the positioning column (7-3).
6. The heat sealing process of polyethylene blood bags according to claim 5, characterized in that: the heat insulation cloth (7-4) and the heat insulation layer (7-5) are made of Teflon high-temperature-resistant sealing cloth.
7. The heat sealing process for polyethylene blood bags according to claim 1, characterized in that; the arrangement form of the cooling pipeline (9-4) in the pressing plate (9-3) is a U-shaped pipe series connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210268485.7A CN114655516A (en) | 2022-03-18 | 2022-03-18 | Heat sealing process of polyethylene blood bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210268485.7A CN114655516A (en) | 2022-03-18 | 2022-03-18 | Heat sealing process of polyethylene blood bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114655516A true CN114655516A (en) | 2022-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210268485.7A Pending CN114655516A (en) | 2022-03-18 | 2022-03-18 | Heat sealing process of polyethylene blood bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114655516A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264789A (en) * | 2011-03-14 | 2013-08-28 | 苏州森瑞保鲜设备有限公司 | Negative pressure gas replacement and seal packing device |
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-
2022
- 2022-03-18 CN CN202210268485.7A patent/CN114655516A/en active Pending
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