Blood bag tear piece protective cover interface heat sealing device

Abstract

The present invention belongs to the technical field of blood bag products, and particularly relates to a heat sealing device for the interface of a blood bag tear sheet protection sleeve. In the present invention, a heat sealing machine base is provided, and a blood bag forming upper die and a blood bag forming lower die that can reciprocate linearly in the vertical direction are arranged on the heat sealing machine base. In the present invention, two tear sheets are placed in the tear sheet heat sealing chuck. After the two tear sheets are clamped and heat sealed by the tear sheet heat sealing chuck and driven to move, at this time, when the interface forming tube is moved to the middle position between the two tear sheets, the blood bag forming upper die and the blood bag forming lower die are moved closer to each other. Through the heat sealing action between the blood bag forming upper die and the blood bag forming lower die, the tear sheets are heat sealed into blood bags. When the heat sealing is completed, the interface forming tube is withdrawn from the formed blood bags. Multiple blood bags can be formed at one time, and the blood bag interfaces are formed synchronously. The integral forming ensures that there is no peeling phenomenon after the heat sealing surface is broken. The quality, automation degree and production efficiency of the blood bags are relatively high, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of blood bag products, and relates to a heat sealing device for the interface of a blood bag tear protection sleeve. Background Art

[0002] A heat sealer is also known as a high-frequency plastic welding machine, a high-frequency plastic welding machine, etc., and is mainly used for heating plastics. The working principle of a high-frequency heat sealer: The high-frequency electric field acts on the plastic material in its electric field, causing molecular polarization in it. These polarized molecules are forced to be arranged in the direction of the electric field. The rapid change of the high-frequency electric field causes these molecules to follow the change at the same extremely fast speed. As a result, a large amount of heat is generated in the dielectric material due to dielectric loss. These heats accumulate and form a very high temperature, which finally melts it. When plastics such as polyvinyl chloride are placed between electrodes and a certain pressure is applied, after melting and cooling for a period of time, the plastics can be formed and fixed. Currently, blood bags are generally manufactured using a heat sealer. In existing heat sealers, the equipment can only form one blood bag in one heat sealing operation, and the blood bag interface is formed secondarily for the formed blood bag, resulting in low production efficiency and automation level.

[0003] In order to overcome the deficiencies of the prior art, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a high-frequency blood bag hose heat sealer [Application No.: 201821769666.3], which includes a machine shell, a high-frequency generator, and a heat sealing device. There is a heat sealing table on one side of the machine shell. Its characteristics are: there is a tube groove on the heat sealing table, a heat sealing groove is provided below the tube groove, a blood bag tray is provided on one side of the tube groove, there are several heat sealing devices, and the several heat sealing devices are evenly distributed along the heat sealing groove. The heat sealing moving head and the heat sealing static head are respectively placed on both sides of the heat sealing groove. There are at least two pipe positioning devices on the machine shell, and the pipe positioning devices push the plastic pipes in the tube groove into the heat sealing groove neatly. Through the mutually spaced and staggered heat sealing devices and pipe positioning devices, the present invention can heat seal the plastic pipes connected to the blood bag into multiple segments at one time in the heat sealing groove, ensuring that each segment of the plastic pipe is well heat sealed, and there is a weak point in the joint part after heat sealing, which can be easily torn by hand for convenient use. However, this solution still has the defect of being unable to form multiple blood bags and blood bag interfaces synchronously at one time, resulting in low production efficiency. Summary of the Invention

[0004] The object of the present invention is to solve the above problems and provide a heat sealing device for the interface of a blood bag tear protection sleeve.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A heat sealing device for the interface of a blood bag tear sheet protective cover, comprising a heat sealing machine base. On the heat sealing machine base, there are a blood bag forming upper die and a blood bag forming lower die that can reciprocate linearly in the vertical direction. At the bottom of the blood bag forming upper die, there are several upper die forming cavities symmetrically arranged along the center line of the blood bag forming upper die. At the top of the blood bag forming lower die, there are several lower die forming cavities symmetrically arranged along the center line of the blood bag forming lower die. The blood bag forming upper die is located directly above the blood bag forming lower die. Between the blood bag forming upper die and the blood bag forming lower die, there is a tear sheet heat sealing chuck that can reciprocate linearly in the horizontal direction. On the heat sealing machine base, there is a rotatable rotating seat, and several blood bag interface forming components are arranged on the rotating seat.

[0007] In the above-mentioned heat sealing device for the interface of a blood bag tear sheet protective cover, the blood bag interface forming components are distributed in a rectangular array along the center point of the rotating seat. The blood bag interface forming components include an interface cannula seat arranged on the rotating seat. On the interface cannula seat, there is an interface plate that can reciprocate linearly in the horizontal direction. At one end of the interface plate close to the interface cannula seat, there are several interface forming tubes symmetrically arranged along the center line of the interface cannula seat.

[0008] In the above-mentioned heat sealing device for the interface of a blood bag tear sheet protective cover, the number of upper die forming cavities is the same as that of the lower die forming cavities, and the number of interface forming tubes is the same as that of the upper die forming cavities. At one end of the upper die forming cavity close to the rotating seat, there is an interface forming upper cavity, and the interface forming upper cavity is communicated with the upper die forming cavity. At one end of the lower die forming cavity close to the rotating seat, there is an interface forming lower cavity, and the interface forming lower cavity is communicated with the lower die forming cavity.

[0009] In the above-mentioned heat sealing device for the interface of a blood bag tear sheet protective cover, both the interface forming upper cavity and the interface forming lower cavity are semi-circular. At the bottom of the blood bag forming lower die, there is a lower die mounting plate. At the bottom of the lower die mounting plate, there is a first linear drive, and the first linear drive is fixedly connected to the heat sealing machine base. The power shaft of the first linear drive is connected to the lower die mounting plate.

[0010] In the above-mentioned heat sealing device for the interface of a blood bag tear sheet protective cover, at the top of the heat sealing machine base, there is a second linear drive. At the top of the blood bag forming upper die, there is an upper die mounting plate. The power shaft of the second linear drive is connected to the upper die mounting plate. The interface forming tubes and the tear sheet heat sealing chuck are located on the same horizontal plane.

[0011] In the above-mentioned heat sealing device for the interface of a blood bag tear sheet protective cover, at the bottom of the interface plate, there is a horizontal slide table. At the bottom of the horizontal slide table, there are several slide rails symmetrically arranged along the center line of the horizontal slide table. The horizontal slide table is slidably matched with the slide rails. The interface forming tubes extend into the interface cannula seat and the interface forming tubes are slidably matched with the interface cannula seat.

[0012] In the above-mentioned heat-sealing device for the interface of the blood bag tear strip protective cover, a buckle abutment seat is provided on the horizontal sliding table. The buckle abutment seat is in a concave shape. A top seat is provided on the heat-sealing machine base. A driving mounting seat capable of reciprocating linearly in the vertical direction is provided at the bottom of the top seat. A third linear driver is provided at the bottom of the driving mounting seat. A clamping displacement plate is connected to the power shaft of the third linear driver. The clamping displacement plate is adapted to the groove shape of the buckle abutment seat.

[0013] In the above-mentioned heat-sealing device for the interface of the blood bag tear strip protective cover, a fourth linear driver is provided on the top seat. The power shaft of the fourth linear driver is connected to the driving mounting seat. The clamping displacement plate is located above the buckle abutment seat.

[0014] In the above-mentioned heat-sealing device for the interface of the blood bag tear strip protective cover, a circumferential rotator is provided at the bottom of the rotating seat. The circumferential rotator is fixedly connected to the heat-sealing machine base. The rotating shaft of the circumferential rotator is connected to the rotating seat.

[0015] In the above-mentioned heat-sealing device for the interface of the blood bag tear strip protective cover, a tear strip baffle is further provided on the heat-sealing machine base. The tear strip baffle corresponds to the position of the tear strip heat-sealing chuck.

[0016] Compared with the existing technology, the advantages of the present invention are as follows:

[0017] 1. In the present invention, two tear strips are placed in the tear strip heat-sealing chuck. After the two tear strips are clamped and heat-sealed by the tear strip heat-sealing chuck and the tear strips are driven to move, at this time, the interface forming tube is moved to the middle position between the two tear strips, and then the blood bag forming upper mold and the blood bag forming lower mold are moved closer to each other. Through the heat-sealing action between the blood bag forming upper mold and the blood bag forming lower mold, the tear strips are heat-sealed into a blood bag. The interface forming tube is used to form the interface of the blood bag. When the heat-sealing is completed, the interface forming tube is withdrawn from the formed blood bag. Multiple blood bags can be formed at one time, and the blood bag interfaces are formed synchronously. It is integrally formed, and there will be no peeling phenomenon after the heat-sealing surface is broken. The quality, automation degree and production efficiency of the blood bag are relatively high, and the operation is simple and convenient.

[0018] 2. In the present invention, by setting the interface forming upper cavity and the interface forming lower cavity into a semicircular shape, it is ensured that after the interface forming upper cavity and the interface forming lower cavity are closely fitted to each other, the formed interface cavity is circular, which is convenient for the formation of the circular interface of the blood bag.

[0019] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the present invention.

[0021] Figure 2 It is a schematic structural diagram in another direction of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the lower mold for blood bag forming.

[0023] Figure 4 It is a partial schematic diagram of the upper mold for blood bag forming.

[0024] In the figure: heat sealing machine base 1, upper mold for blood bag forming 2, lower mold for blood bag forming 3, upper mold forming cavity 4, lower mold forming cavity 5, tear piece heat sealing chuck 6, rotating seat 7, blood bag interface forming assembly 8, interface insertion tube seat 9, interface plate 10, interface forming tube 11, interface forming upper cavity 12, interface forming lower cavity 13, lower mold mounting plate 14, first linear driver 15, second linear driver 16, upper mold mounting plate 17, horizontal slide 18, slide rail 19, buckle abutting seat 20, top seat 21, drive mounting seat 22, third linear driver 23, clamping displacement plate 24, fourth linear driver 25, tear piece baffle 26. Specific embodiments

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, a heat sealing device for the interface of the blood bag tear piece protection sleeve includes a heat sealing machine base 1. A blood bag forming upper mold 2 and a blood bag forming lower mold 3 that can reciprocate linearly in the vertical direction are provided on the heat sealing machine base 1. A plurality of upper mold forming cavities 4 symmetrically arranged along the center line of the blood bag forming upper mold 2 are provided at the bottom of the blood bag forming upper mold 2. A plurality of lower mold forming cavities 5 symmetrically arranged along the center line of the blood bag forming lower mold 3 are provided at the top of the blood bag forming lower mold 3. The blood bag forming upper mold 2 is located directly above the blood bag forming lower mold 3. A tear piece heat sealing chuck 6 that can reciprocate linearly in the horizontal direction is provided between the blood bag forming upper mold 2 and the blood bag forming lower mold 3. A rotatable rotating seat 7 is provided on the heat sealing machine base 1. A plurality of blood bag interface forming assemblies 8 are provided on the rotating seat 7.

[0027] In this embodiment, a linear driver is provided on the heat-sealing machine base 1. The power shaft of the linear driver is connected to the sheet-ripping heat-sealing chuck 6. When it is necessary to move the sheet-ripping heat-sealing chuck 6, the linear driver is started, and the power shaft of the linear driver drives the sheet-ripping heat-sealing chuck 6 to move. The staff places two sheet-ripping pieces in the sheet-ripping heat-sealing chuck 6. After clamping and heat-sealing the two sheet-ripping pieces through the sheet-ripping heat-sealing chuck 6 and driving the sheet-ripping pieces to move, the rotary seat 7 is rotated at this time to drive the blood bag interface forming assembly 8 to move towards the middle position between the two sheet-ripping pieces. When the blood bag interface forming assembly 8 moves to the middle position between the two sheet-ripping pieces, the blood bag forming upper mold 2 and the blood bag forming lower mold 3 are moved closer to each other, so that the upper mold forming cavity 4 is in close contact with the lower mold forming cavity 5. Through the heat-sealing action between the blood bag forming upper mold 2 and the blood bag forming lower mold 3, the sheet-ripping pieces are heat-sealed into a blood bag. The blood bag interface forming assembly 8 is used to form the interface of the blood bag. When the heat-sealing is completed, the blood bag interface forming assembly 8 is withdrawn from the formed blood bag. Multiple blood bags can be formed at one time, and the blood bag interfaces are formed synchronously. The integral forming ensures that there will be no peeling phenomenon after the heat-sealing surface is broken. The quality, automation degree and production efficiency of the blood bag are relatively high, and the operation is simple and convenient. Those skilled in the art should understand that the linear driver can be a cylinder, an oil cylinder or a linear motor.

[0028] Combined with Figure 1 、 Figure 2 As shown, the blood bag interface forming assemblies 8 are distributed in a rectangular array along the center point of the rotary seat 7. The blood bag interface forming assembly 8 includes an interface insertion tube seat 9 provided on the rotary seat 7. An interface plate 10 capable of reciprocating linearly in the horizontal direction is provided on the interface insertion tube seat 9. A plurality of interface forming tubes 11 symmetrically arranged along the center line of the interface insertion tube seat 9 are provided at one end of the interface plate 10 close to the interface insertion tube seat 9.

[0029] Specifically, before forming the blood bag, the interface forming tube 11 is first rotated to the middle position between the two sheet-ripping pieces. The interface plate 10 is used to fix the interface forming tube 11. The interface forming tube 11 is in sliding fit with the interface insertion tube seat 9. When it is necessary to withdraw the interface forming tube 11 from the formed blood bag, the interface forming tube 11 is withdrawn from the formed blood bag through the sliding fit between the interface forming tube 11 and the interface insertion tube seat 9.

[0030] Combined with Figure 1 、 Figure 3 、 Figure 4 As shown, the number of the upper mold forming cavities 4 is the same as that of the lower mold forming cavities 5, and the number of the interface forming tubes 11 is the same as that of the upper mold forming cavities 4. An interface forming upper cavity 12 is provided at one end of the upper mold forming cavity 4 close to the rotary seat 7. The interface forming upper cavity 12 is communicated with the upper mold forming cavity 4. An interface forming lower cavity 13 is provided at one end of the lower mold forming cavity 5 close to the rotary seat 7. The interface forming lower cavity 13 is communicated with the lower mold forming cavity 5.

[0031] In this embodiment, the number of the upper die forming cavities 4 is the same as that of the lower die forming cavities 5, and the number of the interface forming tubes 11 is the same as that of the upper die forming cavities 4, ensuring that multiple blood bags with interfaces are formed at one time without omission or error. When the blood bag forming upper die 2 and the blood bag forming lower die 3 approach each other, the interface forming upper cavity 12 and the interface forming lower cavity 13 are closely fitted together, so that the interface forming tube 11 can be inserted into the interface cavity formed by the interface forming upper cavity 12 and the interface forming lower cavity 13, and the blood bag interface is quickly formed.

[0032] Combined with Figure 3 , Figure 4 As shown in the figure, both the interface forming upper cavity 12 and the interface forming lower cavity 13 are semi-circular. A lower die mounting plate 14 is provided at the bottom of the blood bag forming lower die 3. A first linear driver 15 is provided at the bottom of the lower die mounting plate 14. The first linear driver 15 is fixedly connected to the heat sealing machine base 1, and the power shaft of the first linear driver 15 is connected to the lower die mounting plate 14.

[0033] In this embodiment, both the interface forming upper cavity 12 and the interface forming lower cavity 13 are semi-circular, ensuring that after the interface forming upper cavity 12 and the interface forming lower cavity 13 are closely fitted together, the formed interface cavity is circular. When it is necessary to move the blood bag forming lower die 3, the first linear driver 15 is started, and the lower die mounting plate 14 and the blood bag forming lower die 3 are driven to move through the power shaft of the first linear driver 15. Those skilled in the art should understand that the first linear driver 15 can be a cylinder, an oil cylinder or a linear motor.

[0034] Combined with Figure 1 As shown in the figure, a second linear driver 16 is provided at the top of the heat sealing machine base 1. An upper die mounting plate 17 is provided at the top of the blood bag forming upper die 2. The power shaft of the second linear driver 16 is connected to the upper die mounting plate 17. The interface forming tube 11 and the tear sheet heat sealing chuck 6 are located on the same horizontal plane.

[0035] In this embodiment, when it is necessary to move the blood bag forming upper die 2, the second linear driver 16 is started, and the upper die mounting plate 17 and the blood bag forming upper die 2 are driven to move through the power shaft of the second linear driver 16. Those skilled in the art should understand that the second linear driver 16 can be a cylinder, an oil cylinder or a linear motor.

[0036] Combined with Figure 1 , Figure 2 As shown in the figure, a horizontal slide 18 is provided at the bottom of the interface plate 10. A plurality of slide rails 19 symmetrically arranged along the center line of the horizontal slide 18 are provided at the bottom of the horizontal slide 18. The horizontal slide 18 is slidably matched with the slide rails 19. The interface forming tube 11 extends into the interface insertion socket 9 and the interface forming tube 11 is slidably matched with the interface insertion socket 9.

[0037] In this embodiment, when it is necessary to withdraw the interface forming tube 11 from the formed blood bag, the horizontal slide 18 is moved by the sliding fit between the horizontal slide 18 and the slide rail 19, driving the interface plate 10 and the interface forming tube 11 to move away from one end of the formed blood bag.

[0038] A buckle abutting seat 20 is provided on the horizontal slide 18. The buckle abutting seat 20 is in a concave shape. A top seat 21 is provided on the heat sealing machine base 1. A driving mounting seat 22 capable of reciprocating linearly in the vertical direction is provided at the bottom of the top seat 21. A third linear driver 23 is provided at the bottom of the driving mounting seat 22. A clamping displacement plate 24 is connected to the power shaft of the third linear driver 23. The clamping displacement plate 24 is adapted to the groove shape of the buckle abutting seat 20.

[0039] In this embodiment, when it is necessary to move the horizontal slide 18, after the driving mounting seat 22 and the clamping displacement plate 24 are moved downward, the clamping displacement plate 24 is inserted into the buckle abutting seat 20. At this time, the third linear driver 23 is started, and the clamping displacement plate 24 is driven to move by the power shaft of the third linear driver 23. Through the clamping fit between the clamping displacement plate 24 and the buckle abutting seat 20, the buckle abutting seat 20, the horizontal slide 18, the interface plate 10 and the interface forming tube 11 are driven to move. Those skilled in the art should understand that the third linear driver 23 can be a cylinder, an oil cylinder or a linear motor.

[0040] Combined with Figure 1 As shown, a fourth linear driver 25 is provided on the top seat 21. The power shaft of the fourth linear driver 25 is connected to the driving mounting seat 22. The clamping displacement plate 24 is located above the buckle abutting seat 20.

[0041] In this embodiment, when it is necessary to move the driving mounting seat 22, the fourth linear driver 25 is started, and the driving mounting seat 22 is driven to complete the vertical movement by the power shaft of the fourth linear driver 25. Those skilled in the art should understand that the fourth linear driver 25 can be a cylinder, an oil cylinder or a linear motor.

[0042] Combined with Figure 1 、 Figure 2 As shown, a circumferential rotator 25 is provided at the bottom of the rotating seat 7. The circumferential rotator 25 is fixedly connected to the heat sealing machine base 1. The rotating shaft of the circumferential rotator 25 is connected to the rotating seat 7. When it is necessary to move the rotating seat 7, the circumferential rotator 25 is started, and the rotating seat 7 is driven to rotate by the rotating shaft of the circumferential rotator 25.

[0043] A tear piece baffle 26 is further provided on the heat sealing machine base 1 described above. The tear piece baffle 26 corresponds to the position of the tear piece heat sealing chuck 6. The tear piece baffle 26 plays a role in blocking and limiting the tear piece to prevent the tear piece from shifting in position during movement.

[0044] The working principle of the present invention is as follows:

[0045] The staff places two tear pieces in the tear piece heat sealing chuck 6. After clamping and heat sealing the two tear pieces through the tear piece heat sealing chuck 6, the tear pieces are driven to move. At this time, the circumferential rotator 25 is started, and the rotating seat 7 is driven to rotate through the rotating shaft of the circumferential rotator 25, driving the interface forming tube 11 to move towards the middle position between the two tear pieces. When the interface forming tube 11 moves to the middle position between the two tear pieces, the blood bag forming upper mold 2 and the blood bag forming lower mold 3 are brought closer to each other, so that the upper mold forming cavity 4 is closely attached to the lower mold forming cavity 5, and the interface forming upper cavity 12 is closely attached and cooperated with the interface forming lower cavity 13, enabling the interface forming tube 11 to be inserted into the interface cavity formed by the interface forming upper cavity 12 and the interface forming lower cavity 13, quickly forming the blood bag interface. Through the heat sealing action between the blood bag forming upper mold 2 and the blood bag forming lower mold 3, the tear pieces are heat sealed into a blood bag, and the interface forming tube 11 is used to form the interface of the blood bag.

[0046] When the heat sealing is completed, the fourth linear driver 25 is actuated, and the driving mounting seat 22 is driven to move downward through the power shaft of the fourth linear driver 25, so that the clamping displacement plate 24 is inserted into the buckle abutting seat 20. At this time, the third linear driver 23 is started, and the clamping displacement plate 24 is driven to move through the power shaft of the third linear driver 23. Through the clamping cooperation between the clamping displacement plate 24 and the buckle abutting seat 20, the buckle abutting seat 20, the horizontal sliding table 18, the interface plate 10 and the interface forming tube 11 are driven to move, and the interface forming tube 11 is withdrawn from the formed blood bag. Multiple blood bags can be formed at one time, and the blood bag interfaces are formed synchronously. The integral forming ensures that there is no peeling phenomenon after the heat sealing surface breaks. The blood bag has high quality, automation degree and production efficiency, and is simple and convenient to operate.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention.

[0048] Although terms such as heat-sealing base 1, upper blood bag forming die 2, lower blood bag forming die 3, upper die forming cavity 4, lower die forming cavity 5, tear piece heat-sealing chuck 6, rotating base 7, blood bag interface forming assembly 8, interface cannula seat 9, interface plate 10, interface forming tube 11, interface upper forming cavity 12, interface lower forming cavity 13, lower die mounting plate 14, first linear actuator 15, second linear actuator 16, upper die mounting plate 17, horizontal slide 18, slide rail 19, buckle abutting seat 20, top seat 21, drive mounting seat 22, third linear actuator 23, clamping displacement plate 24, fourth linear actuator 25, tear piece baffle 26 are used more frequently in this text, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention, and interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A heat-sealing device for the interface of a blood bag tear sheet protective cover, comprising a heat-sealing machine base (1), characterized in that, On the described heat-sealing machine base (1), there are a blood bag forming upper die (2) and a blood bag forming lower die (3) that can reciprocate linearly in the vertical direction. At the bottom of the blood bag forming upper die (2), there are several upper die forming cavities (4) symmetrically arranged along the center line of the blood bag forming upper die (2). At the top of the blood bag forming lower die (3), there are several lower die forming cavities (5) symmetrically arranged along the center line of the blood bag forming lower die (3). The blood bag forming upper die (2) is located directly above the blood bag forming lower die (3). Between the blood bag forming upper die (2) and the blood bag forming lower die (3), there is a tear film heat-sealing chuck (6) that can reciprocate linearly in the horizontal direction. On the heat-sealing machine base (1), there is a rotatable rotating seat (7). On the rotating seat (7), there are several blood bag interface forming components (8); The blood bag interface forming components (8) are distributed in a rectangular array along the center point of the rotating seat (7). The blood bag interface forming components (8) include an interface inserting tube seat (9) arranged on the rotating seat (7). On the interface inserting tube seat (9), there is an interface plate (10) that can reciprocate linearly in the horizontal direction. At one end of the interface plate (10) close to the interface inserting tube seat (9), there are several interface forming tubes (11) symmetrically arranged along the center line of the interface inserting tube seat (9); At the bottom of the interface plate (10), there is a horizontal slide table (18). At the bottom of the horizontal slide table (18), there are several slide rails (19) symmetrically arranged along the center line of the horizontal slide table (18). The horizontal slide table (18) is slidably matched with the slide rails (19). The interface forming tubes (11) extend into the interface inserting tube seat (9) and the interface forming tubes (11) are slidably matched with the interface inserting tube seat (9); On the heat-sealing machine base (1), there is also a tear film baffle (26), and the position of the tear film baffle (26) corresponds to that of the tear film heat-sealing chuck (6).

2. The heat-sealing device for the blood bag tear sheet protection sleeve interface according to claim 1, wherein The number of the upper die forming cavities (4) is the same as that of the lower die forming cavities (5). The number of the interface forming tubes (11) is the same as that of the upper die forming cavities (4). At one end of the upper die forming cavity (4) close to the rotating seat (7), there is an interface forming upper cavity (12), and the interface forming upper cavity (12) is communicated with the upper die forming cavity (4). At one end of the lower die forming cavity (5) close to the rotating seat (7), there is an interface forming lower cavity (13), and the interface forming lower cavity (13) is communicated with the lower die forming cavity (5).

3. The heat-sealing device for the blood bag tear sheet protection sleeve interface according to claim 2, wherein, Both the interface forming upper cavity (12) and the interface forming lower cavity (13) are semi-circular. At the bottom of the blood bag forming lower die (3), there is a lower die mounting plate (14). At the bottom of the lower die mounting plate (14), there is a first linear driver (15). The first linear driver (15) is fixedly connected to the heat-sealing machine base (1), and the power shaft of the first linear driver (15) is connected to the lower die mounting plate (14).

4. The heat-sealing device for the blood bag tear sheet protective cover interface according to claim 1, characterized in that, A second linear driver (16) is provided at the top of the heat-sealing machine base (1). An upper die mounting plate (17) is provided at the top of the blood bag forming upper die (2). The power shaft of the second linear driver (16) is connected to the upper die mounting plate (17). The interface forming tube (11) and the tearing piece heat-sealing chuck (6) are located on the same horizontal plane.

5. The heat-sealing device for the blood bag tear sheet protective cover interface according to claim 4, wherein A buckle abutting seat (20) is provided on the horizontal slide table (18). The buckle abutting seat (20) is in a concave shape. A top seat (21) is provided on the heat-sealing machine base (1). A driving mounting seat (22) capable of reciprocating linearly in the vertical direction is provided at the bottom of the top seat (21). A third linear driver (23) is provided at the bottom of the driving mounting seat (22). A clamping displacement plate (24) is connected to the power shaft of the third linear driver (23). The clamping displacement plate (24) is matched with the groove shape of the buckle abutting seat (20).

6. The heat-sealing device for the blood bag tear sheet protective cover interface according to claim 5, characterized in that, A fourth linear driver (25) is provided on the top seat (21). The power shaft of the fourth linear driver (25) is connected to the driving mounting seat (22). The clamping displacement plate (24) is located above the buckle abutting seat (20).

7. The heat-sealing device for the interface of the blood bag tear sheet protection sleeve according to claim 1, characterized in that, A circumferential rotator (25) is provided at the bottom of the rotating seat (7). The circumferential rotator (25) is fixedly connected to the heat-sealing machine base (1). The rotating shaft of the circumferential rotator (25) is connected to the rotating seat (7).

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