Paper-plastic bag sterilization equipment

By adopting a side-opening door design and a synchronous toothed belt driven by servo motor in the sterilization equipment, combined with the plug rod and Y-shaped part of the bag assembly, the problem of poor steam rise and sterilization uniformity in existing sterilization equipment is solved. Improves operational safety and sterilization effect.

CN119215202APending Publication Date: 2024-12-31JIANGSU WANHE PLASTICS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411500146.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2024-12-31

AI Technical Summary

Technical Problem

The top-opening door design of existing sterilization equipment causes steam to rise and easily cause burns to the operator, and lacks appropriate bag support components, resulting in poor uniformity of high-temperature steam sterilization inside paper and plastic bags.

Method used

A paper-plastic bag sterilization equipment including side doors, steam delivery pipes, servo motors and bag support components was designed to reduce steam rise through side doors, and uniform steam contact was achieved by using servo motors and synchronous toothed belts, and the bag support components were passed through The plug-in rod and the Y-shaped piece guide the steam into the bag for high-temperature sterilization.

Benefits of technology

Improves operational safety and sterilization effect, ensures that the steam is evenly contacted inside the paper and plastic bag, and enhances the uniformity and efficiency of sterilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119215202A_ABST
    Figure CN119215202A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of sterilization equipment, in particular to paper-plastic bag sterilization equipment which comprises a sterilization box, a side opening door, a machine box, an inner box and a bag opening assembly, the side opening door design can reduce the situation that an operator is scalded due to steam rising in the sterilization box, and the use safety is improved; the inverted paper-plastic bag body is opened by the forked parts of the two Y-shaped pieces of the bag opening assembly, so that steam generated from the lower part enters the bag body for high-temperature sterilization, and meanwhile, short, medium and long inserting rods are arranged in a limited manner from bottom to top; the shielding of the paper-plastic bag body arranged on the lower bag opening assembly on the upper-layer paper-plastic bag body is reduced; a servo motor in the inner box drives a driving rotating shaft and a driving fluted disc arranged on the upper portion of the driving rotating shaft to rotate, a driven rotating shaft with a driven fluted disc is arranged between a top plate and a grating plate, and the driving fluted disc and the driven fluted disc achieve synchronous rotation through a synchronous toothed belt, so that an inverted paper-plastic bag body is in uniform contact with steam, and the steam is prevented from flowing out. The contact range with high-temperature steam is enlarged, and meanwhile, the sterilization effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of sterilization equipment, in particular to a paper-plastic bag sterilization equipment. Background Art

[0002] Paper-plastic bags are a kind of packaging material composed of a plastic layer and kraft paper. In the processing flow of paper-plastic bags, they usually need to be sterilized with high-temperature steam to ensure their sterility. However, the current sterilization equipment is usually designed with a top-opening door. The rising steam in the sterilization box can easily cause burns to operators. At the same time, the sterilization equipment lacks a suitable bag-supporting component, and the inside of the paper-plastic bag cannot be sterilized with high-temperature steam. The sterilization uniformity is poor. In view of this, it is necessary to improve the current sterilization equipment to solve the above problems.

[0003] The above information disclosed in this Background section is only for understanding the background of the present inventive concept and therefore it may contain information that does not constitute prior art. Summary of the invention

[0004] The object of the present invention is to provide a paper-plastic bag sterilization device to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A paper-plastic bag sterilizing device comprises a sterilizing box, a side-opening door, a chassis, an inner box and a bag-supporting assembly, wherein the chassis is arranged on one side of the sterilizing box, and the side-opening door is arranged on the other side of the sterilizing box through a buckle opening and closing, a steam delivery pipe is installed at the lower part of the inner bottom wall of the sterilizing box, air holes are evenly opened on the steam delivery pipe, and one end of the steam delivery pipe is connected to the output end of a steam generator arranged in the chassis, and a controller is also arranged in the chassis;

[0007] The outside of the sterilization box is provided with a safety valve and an exhaust valve, and the side door is provided with a pressure gauge;

[0008] The first slide rail and the second slide rail are symmetrically arranged on both sides of the inner wall of the sterilization box from top to bottom, and the top plate is arranged on the opposite side of the slider arranged between the first slide rails through the horizontal pulling of the connecting block, and the grid plate is arranged on the opposite side of the slider arranged between the second slide rails through the horizontal pulling of the connecting block;

[0009] The top surface of the top plate is provided with an inner box, a servo motor is provided in the middle of the top wall inside the inner box, an active rotating shaft is fixedly mounted on the output end of the servo motor through a coupling, the active rotating shaft runs through the middle of the top plate, a driving gear plate is provided on the upper part of the active rotating shaft, at least two groups of driven rotating shafts are provided on the bottom end of the top plate facing the rotary scale, the driven rotating shaft runs through the middle of the top plate, a driven gear plate is provided on the upper part of the driven rotating shaft, and a synchronous toothed belt is provided between the active gear plate and the driven gear plate;

[0010] A plurality of slots are symmetrically welded on the outer sides of the active rotating shaft and the driven rotating shaft, and a plug rod is inserted into the slot. One end of the plug rod is detachably connected to a bag support assembly through a bolt, and a paper-plastic bag body is invertedly sleeved on the outer side of the bag support assembly;

[0011] In addition, a preferred structure is that a conical bottom is provided in the middle of the bottom end surface of the sterilization box, a drain pipe is provided in the middle of the conical bottom, and a control valve is provided on the drain pipe.

[0012] In addition, a preferred structure is that a handle is provided on one side of the side-opening door, and the upper part of the side-opening door is connected and fixed to one side of the top plate, and the lower part of the side-opening door is connected and fixed to one side of the grille plate.

[0013] In addition, a preferred structure is that the controller is electrically connected to the servo motor, the safety valve, the exhaust valve, the pressure gauge, the steam generator and the control valve respectively.

[0014] In addition, the preferred structure is that upper bearings are symmetrically arranged on both sides of the top surface of the inner box, lower bearings are respectively arranged on the top surfaces of the grille plates, and the lower part of the active rotating shaft is inserted and fixed in the middle of the lower bearings, and the two ends of the driven rotating shaft are respectively inserted and fixed in the middle of the upper bearings and the lower bearings.

[0015] In addition, a preferred structure is that the bag-stretching assembly includes a sleeve block, a Y-shaped piece is symmetrically arranged on the top surface of the sleeve block, and a silicone layer is respectively sleeved on the outer sides of the two forked parts of the Y-shaped piece, and the silicone layer is in contact with the inner wall of the paper-plastic bag body.

[0016] In addition, a preferred structure is that two bending portions are respectively provided at both ends of the plug-in rod, wherein the vertically downward bending portion at one end of the plug-in rod is matched with the middle portion of the slot, and the vertically upward bending portion at the other end of the plug-in rod is matched with the middle portion of the socket block, wherein the bolts are sequentially passed through the side walls of the socket block and are screwed and fixed with the middle portion of the vertically upward bending portion of the plug-in rod.

[0017] In addition, the preferred structure is that the horizontal portion of the plug-in rod is provided with three length specifications of long, medium and short, wherein the horizontal portion of the short plug-in rod ranges from 10cm to 15cm, the horizontal portion of the medium plug-in rod ranges from 20cm to 25cm, and the horizontal portion of the long plug-in rod ranges from 30cm to 35cm, and the arrangement from bottom to top is short, medium and long.

[0018] The beneficial effects of the present invention are:

[0019] 1. The side-opening door design can reduce the risk of scalding to operators due to steam rising in the sterilization box, thereby improving safety in use compared to the traditional top-opening door design.

[0020] 2. By symmetrically arranging slots on the outside of the rotating shaft, and using bolts at one end of plug-in rods of different specifications in the slots to arrange a bag-opening assembly for opening the paper-plastic bag body, firstly, the forked parts of the two Y-shaped pieces of the bag-opening assembly open the inverted paper-plastic bag body, so that the steam generated from the lower part enters the bag body for high-temperature sterilization, and at the same time, the specifications of the plug-in rods are limitedly arranged from bottom to top into short, medium and long styles, thereby reducing the obstruction of the paper-plastic bag body arranged on the lower bag-opening assembly to the upper paper-plastic bag body;

[0021] 3. A servo motor is arranged in the inner box, which drives the active rotating shaft and the active gear plate arranged on the upper part to rotate. A driven rotating shaft with a driven gear plate is arranged between the top plate and the grid plate. The active gear plate and the driven gear plate are synchronously rotated by a synchronous toothed belt, so that the inverted paper-plastic bag body is evenly contacted with the steam, thereby increasing the contact range with the high-temperature steam and improving the sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a paper-plastic bag sterilization device proposed by the present invention;

[0023] Figure 2 This is a bottom view of a top plate in a paper-plastic bag sterilization device proposed by the present invention;

[0024] Figure 3 This is a partial side view of a paper-plastic bag sterilization device proposed by the present invention;

[0025] Figure 4 A paper-plastic bag sterilization device proposed by the present invention Figure 3 A magnified view of middle;

[0026] Figure 5 A three-dimensional diagram of a bag support assembly in a paper-plastic bag sterilization device proposed by the present invention;

[0027] Figure 6A three-dimensional diagram of a bag support assembly in a paper-plastic bag sterilization device proposed by the present invention;

[0028] Figure 7 The present invention provides a schematic diagram of disassembly and assembly of a bag support assembly in a paper-plastic bag sterilization device.

[0029] In the figure: 1 sterilization box, 2 side door, 31 chassis, 32 inner box, 41 controller, 42 steam generator, 5 steam delivery pipe, 6 conical bottom, 61 drain pipe, 7 control valve, 81 safety valve, 82 exhaust valve, 83 pressure gauge, 9 buckle, 10 handle, 11 leg, 12 servo motor, 131 active rotating shaft, 132 driven rotating shaft, 141 active gear plate, 142 driven gear plate, 15 synchronous toothed belt, 161 upper bearing, 162 lower bearing, 171 first slide rail, 172 second slide rail, 18 slider, 19 connecting block, 20 top plate, 21 grid plate, 22 slot, 23 plug-in rod, 24 bolt, 25 bag support assembly, 251 socket block, 252 Y-shaped piece, 253 silicone layer, 26 paper-plastic bag body. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Reference Figure 1-7 A paper-plastic bag sterilizing device comprises a sterilizing box 1, a side-opening door 2, a chassis 31, an inner box 32 and a bag-supporting assembly 25. The chassis 31 is arranged on one side of the sterilizing box 1, and the side-opening door 2 is arranged on the other side of the sterilizing box 1 through a buckle 9 to open and close;

[0034] In other embodiments, a handle 10 is provided on one side of the side door 2, and the upper portion of the side door 2 is connected and fixed to one side of the top plate 20, and the lower portion of the side door 2 is connected and fixed to one side of the grille plate 21;

[0035] With this design, the operator can open or close the side door 2 by opening and closing the buckle 9 and using the handle 10. Compared with the traditional top-opening door design, the side-opening door design can reduce the risk of operators being scalded by steam rising in the sterilization box, thereby improving the safety of use.

[0036] A steam delivery pipe 5 is installed at the lower part of the bottom wall of the sterilization box 1. The steam delivery pipe 5 is evenly provided with air holes, and one end of the steam delivery pipe 5 is connected to the output end of the steam generator 42 arranged in the chassis 31.

[0037] A controller 41 is also provided in the case 31, a safety valve 81 and an exhaust valve 82 are provided on the outside of the sterilization box 1, and a pressure gauge 83 is provided on the side door 2;

[0038] In other embodiments, a conical bottom 6 is provided in the middle of the bottom end surface of the sterilization box 1, a drain pipe 61 is provided in the middle of the conical bottom 6, and a control valve 7 is provided on the drain pipe 61;

[0039] Through this design, the drain pipe 61 provided with the control valve 7 is connected to the middle of the conical bottom 6. Firstly, the conical bottom 6 can facilitate the collection of the water after the steam condenses in the sterilization box 1, so that it is easy to discharge it in a centralized manner later.

[0040] In other embodiments, the controller 41 is electrically connected to the servo motor 12, the safety valve 81, the exhaust valve 82, the pressure gauge 83, the steam generator 42 and the control valve 7 respectively;

[0041] Through this design, firstly, by setting the safety valve 81, the exhaust valve 82 and the pressure gauge 83, the safety and stability performance of the sterilization equipment during use can be effectively improved, the steam generator 42 can continuously generate high-temperature steam, and emit it through the air holes opened on the steam delivery pipe 5, the servo motor 12, the safety valve 81, the exhaust valve 82, the pressure gauge 83, the steam generator 42 and the control valve 7 are electrically connected to the controller 41, so that the operator can easily control and use the sterilization equipment;

[0042] The first slide rail 171 and the second slide rail 172 are symmetrically arranged on both sides of the inner wall of the sterilization box 1 from top to bottom, respectively. The top plate 20 is arranged on the opposite side of the slider 18 slidably arranged between the first slide rail 171 through the connection block 19, and the grid plate 21 is arranged on the opposite side of the slider 18 slidably arranged between the second slide rail 172 through the connection block 19.

[0043] With this design, the grid plate 21 is arranged on the opposite side of the slider 18 slidably arranged between the second slide rails 172 through the connecting block 19, so that the high-temperature steam emitted from the air holes opened on the steam delivery pipe 5 can better penetrate the grid plate 21, and the paper-plastic bag body 26 between the grid plate 21 and the top plate 20 can be sterilized at high temperature;

[0044] An inner box 32 is provided on the top surface of the top plate 20, a servo motor 12 is provided in the middle of the top wall inside the inner box 32, an active rotating shaft 131 is fixedly mounted on the output end of the servo motor 12 through a coupling, the active rotating shaft 131 runs through the middle of the top plate 20, a driving toothed disc 141 is provided on the upper part of the active rotating shaft 131, at least two groups of driven rotating shafts 132 are provided on the bottom end of the top plate 20 facing the rotary scale, the driven rotating shaft 132 runs through the middle of the top plate 20, a driven toothed disc 142 is provided on the upper part of the driven rotating shaft 132, and a synchronous toothed belt 15 is provided between the active toothed disc 141 and the driven toothed disc 142;

[0045] With this design, when the operator turns on the servo motor 12 through the controller 41, the servo motor 12 drives the active rotating shaft 131 and the active toothed disc 141 to rotate. At this time, the synchronous toothed belt 15 arranged outside the active toothed disc 141 drives the driven rotating shaft 132 in the middle of the driven toothed disc 142 to rotate together, so that the inverted paper-plastic bag body 26 is evenly contacted with the steam, thereby increasing the contact range with the high-temperature steam and improving the sterilization effect.

[0046] In other embodiments, upper bearings 161 are symmetrically provided on both sides of the top surface of the inner box 31, and lower bearings 162 are respectively provided on the top surface of the grid plate 21;

[0047] With this design, the upper bearing 161 is arranged on the top wall inside the inner box 32, the lower bearing 162 is arranged on the grid plate 21, and the lower part of the active rotating shaft 131 is inserted and fixed in the middle part of the lower bearing 162, and the two ends of the driven rotating shaft 132 are respectively inserted and fixed in the middle parts of the upper bearing 161 and the lower bearing 162, so that the active rotating shaft 131 and the driven rotating shaft 132 can rotate more smoothly.

[0048] A plurality of slots 22 are symmetrically welded to the outside of the active rotating shaft 131 and the driven rotating shaft 132 at equal distances, and a plug-in rod 23 is inserted into the slot 22. One end of the plug-in rod 23 is detachably connected to a bag support assembly 25 through a bolt 24, and a paper-plastic bag body 26 is invertedly sleeved on the outside of the bag support assembly 25.

[0049] In other embodiments, the bag support assembly 25 includes a sleeve block 251, a Y-shaped piece 252 is symmetrically arranged on the top surface of the sleeve block 251, and a silicone layer 253 is respectively sleeved on the outer sides of the two forked parts of the Y-shaped piece 252, and the silicone layer 253 is in contact with the inner wall of the paper-plastic bag body 26;

[0050] With this design, a Y-shaped member 252 is firstly provided, and the two forked portions of the Y-shaped member 252 can effectively support the inside of the paper-plastic bag body 26, and the silicone layer 253 is provided outside the forked portion of the Y-shaped member 252, which not only improves the friction coefficient between the bag supporting assembly 25 and the paper-plastic bag body 26, but also the silicone material is also resistant to high temperatures and not easy to deform, which better meets the use requirements of high-temperature sterilization equipment;

[0051] Furthermore, two bending parts are respectively provided at both ends of the plug rod 23, wherein the bending part vertically downward at one end of the plug rod 23 is adapted to the middle part of the slot 22, and the bending part vertically upward at the other end of the plug rod 23 is adapted to the middle part of the socket block 251, wherein the bolt 24 sequentially penetrates the side wall of the socket block 251 and is screwed and fixed to the middle part of the bending part vertically upward of the plug rod 23;

[0052] With this design, the operator can easily replace the plug-in rod 23 later by setting the slot 22 and the plug-in rod 23;

[0053] Furthermore, the horizontal portion of the plug-in rod 23 is provided with three length specifications of long, medium and short, wherein the horizontal portion of the short plug-in rod 23 ranges from 10cm to 15cm, the horizontal portion of the medium plug-in rod 23 ranges from 20cm to 25cm, and the horizontal portion of the long plug-in rod 23 ranges from 30cm to 35cm, and the arrangement from bottom to top is short, medium and long;

[0054] According to the design, slots 22 are symmetrically arranged on the outside of the active rotating shaft 131 and the driven rotating shaft 132, and a bag-supporting assembly 25 for supporting the paper-plastic bag body 26 is provided in the slots 22 by using bolts 24 at one end of plug-in rods 23 of different specifications. First, the forked parts of the two Y-shaped members 252 of the bag-supporting assembly 25 support the inverted paper-plastic bag body 26 from the inside, so that the steam generated from the lower part enters the bag body for high-temperature sterilization. At the same time, the specifications of the plug-in rods 23 are limitedly arranged from bottom to top into short, medium and long styles, thereby reducing the obstruction of the paper-plastic bag body 26 arranged on the lower bag-supporting assembly 25 on the upper paper-plastic bag body 26.

[0055] In this embodiment, the side-opening door design can reduce the risk of operators getting scalded by steam rising in the sterilization box, thereby improving the safety of use.

[0056] By symmetrically arranging slots on the outside of the rotating shaft, and using bolts to arrange a bag-opening assembly for opening the paper-plastic bag body through one end of a plug-in rod of different specifications in the slot, firstly, the forked parts of the two Y-shaped pieces of the bag-opening assembly open the inverted paper-plastic bag body, so that the steam generated from the lower part enters the bag body for high-temperature sterilization, and at the same time, the specifications of the plug-in rod are limitedly arranged from bottom to top into short, medium and long styles, thereby reducing the obstruction of the paper-plastic bag body arranged on the lower bag-opening assembly to the upper paper-plastic bag body;

[0057] A servo motor is arranged in the inner box, which drives the active rotating shaft and the active gear plate arranged on the upper part to rotate. A driven rotating shaft with a driven gear plate is arranged between the top plate and the grid plate. The active gear plate and the driven gear plate are rotated synchronously through a synchronous toothed belt, so that the inverted paper-plastic bag body is evenly contacted with the steam, thereby increasing the contact range with the high-temperature steam and improving the sterilization effect.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A paper-plastic bag sterilizing device, comprising a sterilizing box (1), a side-opening door (2), a machine box (31), an inner box (32) and a bag-supporting assembly (25), characterized in that: A machine box (31) is arranged on one side of the sterilization box (1), and a side door (2) is arranged on the other side of the sterilization box (1) to be opened and closed by a buckle (9). A steam delivery pipe (5) is installed at the lower part of the inner bottom wall of the sterilization box (1), and air holes are evenly arranged on the steam delivery pipe (5). One end of the steam delivery pipe (5) is connected to the output end of a steam generator (42) arranged in the machine box (31). A controller (41) is also arranged in the machine box (31). A safety valve (81) and an exhaust valve (42) are respectively arranged on the outer side of the sterilization box (1). 82), a pressure gauge (83) is arranged on the side-opening door (2), a first slide rail (171) and a second slide rail (172) are symmetrically arranged on both sides of the inner wall of the sterilizing box (1) from top to bottom, and a top plate (20) is arranged on the opposite side of the slider (18) slidably arranged between the first slide rail (171) through a connecting block (19) and a grille plate (21) is arranged on the opposite side of the slider (18) slidably arranged between the second slide rail (172) through a connecting block (19) and the top of the top plate (20) is An inner box (32) is provided on the surface, a servo motor (12) is provided in the middle of the top wall inside the inner box (32), an active rotating shaft (131) is fixedly mounted on the output end of the servo motor (12) through a coupling, the active rotating shaft (131) passes through the middle of the top plate (20), an active gear plate (141) is provided on the upper part of the active rotating shaft (131), at least two groups of driven rotating shafts (132) are provided on the bottom end of the top plate (20) facing the rotary scale, the driven rotating shafts (132) pass through the middle of the top plate (20), and the driven rotating shafts (132) pass through the middle of the top plate (20). A driven toothed disc (142) is arranged on the upper part of the driving toothed disc (141) and a synchronous toothed belt (15) is arranged between the driving toothed disc (141) and the driven toothed disc (142). A plurality of slots (22) are symmetrically welded on the outer sides of the driving rotating shaft (131) and the driven rotating shaft (132). A plug-in rod (23) is inserted into the slot (22). One end of the plug-in rod (23) is detachably connected to a bag support assembly (25) through a bolt (24). A paper-plastic bag body (26) is invertedly sleeved on the outer side of the bag support assembly (25).

2. A paper-plastic bag sterilization equipment according to claim 1, characterized in that: A conical bottom (6) is arranged in the middle of the bottom end surface of the sterilizing box (1), a drainage pipe (61) is arranged in the middle of the conical bottom (6), and a control valve (7) is arranged on the drainage pipe (61).

3. A paper-plastic bag sterilization equipment according to claim 1, characterized in that: A handle (10) is provided on one side of the side-opening door (2), and the upper part of the side-opening door (2) is connected and fixed to one side of the top plate (20), and the lower part of the side-opening door (2) is connected and fixed to one side of the grille plate (21).

4. A paper-plastic bag sterilization equipment according to claim 2, characterized in that: The controller (41) is electrically connected to the servo motor (12), the safety valve (81), the exhaust valve (82), the pressure gauge (83), the steam generator (42) and the control valve (7).

5. The paper-plastic bag sterilization equipment according to claim 1, characterized in that: Upper bearings (161) are symmetrically arranged on both sides of the top end surface of the inner box (31), lower bearings (162) are respectively arranged on the top end surfaces of the grille plates (21), and the lower portion of the active rotating shaft (131) is inserted and fixed in the middle of the lower bearing (162), and the two ends of the driven rotating shaft (132) are respectively inserted and fixed in the middle of the upper bearing (161) and the lower bearing (162).

6. The paper-plastic bag sterilization equipment according to claim 1, characterized in that: The bag support assembly (25) comprises a sleeve block (251), a Y-shaped piece (252) is symmetrically arranged on the top surface of the sleeve block (251), and the outer sides of the two forked parts of the Y-shaped piece (252) are respectively sleeved with a silicone layer (253), and the silicone layer (253) is in contact with the inner wall of the paper-plastic bag body (26).

7. The paper-plastic bag sterilization equipment according to claim 2, characterized in that: Two bending parts are respectively arranged at both ends of the plug rod (23), wherein the vertically downward bending part at one end of the plug rod (23) is matched with the middle part of the slot (22), and the vertically upward bending part at the other end of the plug rod (23) is matched with the middle part of the socket block (251), wherein the bolts (24) are sequentially penetrated through the side wall of the socket block (251) and are screwed and fixed with the middle part of the vertically upward bending part of the plug rod (23).

8. The paper-plastic bag sterilization equipment according to claim 6, characterized in that: The horizontal portion of the plug-in rod (23) is provided with three length specifications of long, medium and short, wherein the horizontal portion of the short plug-in rod (23) has a range of 10cm-15cm, the horizontal portion of the medium plug-in rod (23) has a range of 20cm-25cm, and the horizontal portion of the long plug-in rod (23) has a range of 30cm-35cm, and the arrangement from bottom to top is short, medium and long.