A sealing device for quickly sealing waste filters

Abstract

The application discloses a sealing device for quickly sealing waste filters, and relates to the technical field of plastic bag sealing devices. The sealing device is composed of an assembled guide rail assembly, a portable sealing machine and a control device. The portable sealing machine comprises a shell and a feeding wheel, a heating block, a heat sealing wheel, a leveling wheel, a cutting wheel, a separating wheel, a synchronous gear and a stepping motor for driving the synchronous gear, which are arranged in pairs in the inner cavity of the cuboid from front to back and arranged in two layers in an up-down mode. The cutting wheel and the leveling wheel are directly connected with the synchronous gear through a synchronous belt and a synchronous pulley. The heat sealing wheel is connected with the cutting wheel through a synchronous pulley and a synchronous belt. The feeding wheel is connected with the heat sealing wheel through a synchronous pulley and a synchronous belt. The application can automatically heat seal and cut the plastic bag after the waste filter is loaded into the plastic bag, greatly improves the sealing efficiency of the plastic bag, greatly improves the forming quality and sealing performance of the sealing part of the plastic bag, and effectively reduces the risk of radioactive pollutant leakage.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a plastic bag sealing device, in particular to a sealing device for quickly sealing and storing waste filters. BACKGROUND

[0002] The Air Cleaning Handbook published in 1981 by Burchester, Kahn and Fuller (USA) is the earliest document in the nuclear field to introduce the "bag-in-bag-out" technology of air cleaning devices, but its description of the key details in the operation process and the required supporting items is too simple. The original "bag-in-bag-out" operation process of the air cleaning device only briefly describes the main steps, without specifying the details of the key operations and the model of the supporting items, which cannot effectively guide the user's operation, resulting in that the user only realizes the "bag-out" function in the actual replacement process of the filter unit, i.e. the waste filter unit is packed into a special plastic bag, but there is still a risk of radioactive contamination leakage during the removal of the waste filter unit and the installation of the new filter unit. The original "bag-in-bag-out" technology must be improved to ensure the safety of the operating personnel and the working environment. For this reason, the applicant submitted a patent application on September 8, 2023, with the patent application number 2023111587969 and the invention name "a new and old filter replacement process to avoid radioactive contamination leakage", which can effectively guide the user to effectively reduce the risk of radioactive contamination leakage during the replacement of new and old filters, better protect the radiation safety protection and personal health of the operating personnel, prevent secondary pollution, and protect the safety of the surrounding environment, especially suitable for operating fields with high risk or high isolation requirements. However, in step C of the process, sealing and transferring the waste filter, and step G, removing the residual plastic bag, a sealing machine is needed for quick heat sealing and cutting. The existing sealing machines are mostly manual scissors type sealing machines that require two or three people to operate together, which has the defects of low manual sealing efficiency, poor forming quality and sealing performance of the plastic bag sealing part, risk of radioactive contamination leakage, inability to effectively protect the radiation safety protection and personal health of the operating personnel, inability to avoid secondary pollution of the surrounding environment, and cumbersome, time-consuming and labor-intensive operation. Therefore, a sealing device capable of quickly and automatically heat sealing and cutting the plastic bag after packing the waste filter is needed. SUMMARY

[0003] The present application aims at the deficiencies of the prior art and provides a sealing and cutting device for quickly sealing waste filters. The present application can quickly and automatically heat seal and cut plastic bags after the waste filters are loaded, greatly improving the sealing and cutting efficiency of the plastic bags, greatly improving the forming quality and sealing performance of the sealing and cutting of the plastic bags, effectively improving the sealing and cutting quality of the plastic bags, effectively reducing the risk of radioactive pollutant leakage, better protecting the radiation safety protection and personal health of the operators, protecting the safety of the surrounding environment, preventing secondary pollution, and also having the characteristics of high automation, convenient use, saving manpower, strong universality, wide application range, and can be widely applied to various high-risk or high-isolation requirement fields.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] This invention provides a sealing and cutting device for rapidly sealing used filters. It comprises an assembled guide rail assembly on a lifting platform laid in a mobile lifting trolley, a portable sealing and cutting machine moving forward along the assembled guide rail assembly, and a matching control device. (The lifting platform in the mobile lifting trolley serves as the operating platform for this invention; the assembled guide rail assembly supports the portable sealing and cutting machine and acts as its linear guide rail; the portable sealing and cutting machine can quickly and automatically heat-seal and cut plastic bags after they have been filled with used filters, greatly improving the sealing efficiency, significantly enhancing the forming quality and sealing performance of the sealed area, effectively improving the sealing quality of the plastic bags, effectively reducing the risk of radioactive pollutant leakage, better protecting the radiation safety and health of operators, protecting the safety of the surrounding environment, and preventing secondary pollution; the control device can control and adjust the temperature of the heating block to automatically control the heat-sealing temperature, and the control device can control and adjust the speed of the stepper motor to automatically control the sealing line speed). The assembled guide rail assembly includes a folding guide rail and a support on the folding... The portable sealing and cutting machine includes two mounting brackets at the bottom of the guide rail, four rod clamps on top of the two mounting brackets, and double-layer clamping rods embedded in the two rod clamps on the same side (the mounting brackets support the folding guide rail; the folding guide rail provides limiting guidance for the linear movement of the portable sealing and cutting machine; the rod clamps are used to quickly insert and fix the double-layer clamping rods; the double-layer clamping rods are used to clamp and flatten the area of ​​the plastic bag to be sealed and cut, preparing for subsequent rapid automatic heat sealing and automatic cutting of the plastic bag, ensuring sealing quality and sealing effect); the portable sealing and cutting machine includes a shell with a rectangular inner cavity and a front-to-back... The feeding wheel, heating block, heat sealing wheel, leveling wheel, cutting wheel, separating wheel, and synchronous gear are then installed in pairs within the rectangular cavity, arranged in two layers. The housing provides the mounting foundation and space for these components. The stepper motor provides the driving power for the synchronous gear. The synchronous gear, in turn, directly or indirectly drives the feeding wheel, heat sealing wheel, leveling wheel, cutting wheel, separating wheel, synchronous gear, stepper motor, and synchronous belt to rotate synchronously.Meanwhile, the plastic bags to be sealed and cut, entering the bag inlet slots on both sides of the housing, are leveled by two counter-rotating feeding wheels and then fed backward to the heating station where the heating block is located. The heating block provides heat to the plastic bags entering the heating station for fusion, and the plastic bags continue to move backward to the heat sealing station where the heat sealing wheel is located while fusion is underway. The two counter-rotating heat sealing wheels compress and seal the plastic bags entering the heat sealing station, and the heat-sealed plastic bags continue to move backward to the leveling station where the leveling wheel is located. The two counter-rotating leveling wheels perform a second leveling on the plastic bags entering the leveling station, and the leveled plastic bags continue to move backward to the cutting station where the cutting wheel is located. The two counter-rotating cutting wheels cut the plastic bags entering the cutting station; the cut plastic bags continue to move backward to the fork station where the separating wheels are located; the two cut edges of the sealed plastic bags are smoothly and without crowding out of the inner cavity of the housing, guided by the two separating wheels arranged in an outward V-shape on the left and right. Both the cutting wheels and the leveling wheels are directly connected to the synchronous gears through synchronous belts and synchronous pulleys (the synchronous gears directly drive the cutting wheels and leveling wheels to rotate synchronously), the heat sealing wheel is connected to the cutting wheels through synchronous pulleys and synchronous belts (the synchronous gears indirectly drive the heat sealing wheel to rotate synchronously), and the feeding wheel is connected to the heat sealing wheel through synchronous pulleys and synchronous belts (the synchronous gears indirectly drive the feeding wheel to rotate synchronously).

[0006] The folding guide rail described in this invention is formed by interlocking the inner sides of two L-shaped steel plates and connecting them with several horizontal connecting plates to create a cuboid cavity (the cuboid cavity serves as the straight-line travel channel and guide channel for the portable sealing and cutting machine; the L-shaped steel plates provide limiting guidance; the horizontal connecting plates connect the two L-shaped steel plates into a whole); the width of the inner groove of the folding guide rail matches the outer width of the portable sealing and cutting machine (ensuring that the portable sealing and cutting machine can travel smoothly in a straight line within the inner groove of the folding guide rail); a hinged hinge is provided at the center of the length of the folding guide rail, which can unfold the folding guide rail to a straight working state and fold it into a folded state (facilitating carrying and transporting this invention).

[0007] In this invention, the two card holders are respectively hinged to the bottom of the front and rear ends of the folding guide rail (for easy carrying and transport of this invention); the card holder is based on a rectangular block and has an inverted convex stepped groove at the top from top to bottom. The width of the small opening of the inverted convex stepped groove matches the width of the folding guide rail (for easy insertion and support of the folding guide rail).

[0008] The rod clamp described in this invention is composed of a positioning block, a vertical rod, and an arc clamp connected in sequence (the positioning block can quickly position and fix the rod clamp in the inner cavity of the L-shaped steel plate; the vertical rod is used to connect the positioning block and the arc clamp; the arc clamp is used to clamp the double-layer clamping rod); the inner diameter of the arc clamp matches the diameter of the double-layer clamping rod, and the central angle of the arc clamp is 180 degrees (which facilitates the smooth insertion of the double-layer clamping rod into the arc clamp and also securely clamps the lower clamping rod in the double-layer clamping rod).

[0009] The double-layer clamping rod described in this invention is a double-roller structure consisting of two identical round steel bars arranged with a gap between them and connected at both ends. The gap between the upper and lower round steel bars is matched with the thickness of the plastic bag (to facilitate clamping and flattening the area of ​​the plastic bag to be sealed and cut, preparing for the subsequent automatic heat sealing and automatic cutting of the plastic bag, and ensuring the sealing quality and sealing effect).

[0010] In this invention, a handle is installed at the top center of the housing (providing an alternative working mode for this invention - a handheld working mode), and wheels are installed at the front and rear ends of the bottom of the housing (providing a guide rail-type automatic walking working mode for this invention). Bag inlet slots are provided on both side walls of the housing (allowing the area of ​​the plastic bag to be sealed to pass through the inner cavity of the housing), and the length of the bag inlet slots extends from the front end of the side wall to the front end of the synchronous gear (ensuring that the cut edge after sealing can be moved out of the inner cavity of the housing smoothly and without crowding).

[0011] In this invention, the two side walls of the shell are connected by several bolts (to improve the overall rigidity of the shell and ensure the parallelism of the two side walls).

[0012] In this invention, the feeding wheel, heat sealing wheel, leveling wheel, cutting wheel, and synchronous gear are all mounted on a horizontal transmission shaft. The horizontal transmission shaft passes through the rectangular inner cavity of the housing and is vertically fixed to the two side walls of the housing. The separating wheel is mounted on a transmission short shaft. The two transmission short shafts are fixed to the left and right side walls of the housing respectively in a horizontally backward inclined manner (so that the two separating wheels on the left and right sides are arranged in an outward V-shape, which facilitates the smooth and uncrowded removal of the cut edge of the sealed plastic bag from the inner cavity of the housing).

[0013] In this invention, the stepper motor and heating block are electrically connected to the control device (so the operator only needs to input temperature parameters into the control device to control and adjust the temperature of the heating block, thereby automatically controlling the heat sealing temperature; the operator only needs to input speed parameters into the control device to control and adjust the speed of the stepper motor, thereby automatically controlling the sealing and cutting speed). Therefore, this invention has the characteristics of high automation, ease of use, labor saving, strong versatility, and wide applicability.

[0014] The design principle of this invention is as follows:

[0015] The portable sealing and cutting machine designed in the sealing and cutting device of this invention can move forward along the assembled guide rail assembly. At the same time, the control device can control and adjust the temperature of the heating block—that is, it can automatically control the heat sealing temperature. The control device can also control and adjust the speed of the stepper motor—that is, it can automatically control the sealing and cutting line speed. In this way, the stepper motor drives the synchronous gear to rotate while rotating. The two synchronous gears, in turn, directly or indirectly drive the upper and lower feeding wheels, heat sealing wheels, leveling wheels, cutting wheels, and separating wheels to rotate synchronously through synchronous belts and synchronous pulleys. Meanwhile, the plastic bags to be sealed and cut, entering the bag inlet slots on both sides of the housing, are leveled by two counter-rotating feeding wheels and then fed backward to the heating station where the heating block is located. The heating block provides heat to the plastic bags entering the heating station for fusion, and the plastic bags continue to move backward to the heat sealing station where the heat sealing wheel is located while fusion is underway. The two counter-rotating heat sealing wheels compress and seal the plastic bags entering the heat sealing station, and the heat-sealed plastic bags continue to move backward to the leveling station where the leveling wheel is located. The two counter-rotating leveling wheels perform a second leveling on the plastic bags entering the leveling station, and the leveled plastic bags continue to move backward to the cutting station where the cutting wheel is located. The cutting wheels cut the plastic bags entering the cutting station; the cut plastic bags continue to move backward to the fork station where the separating wheels are located; the two cut edges of the sealed plastic bags are guided smoothly and without crowding out of the inner cavity of the housing by the two separating wheels arranged in a V-shape on the left and right sides—that is, the plastic bags after being filled with waste filters are quickly and automatically heat-sealed and automatically cut, which greatly improves the sealing efficiency of plastic bags, greatly improves the forming quality and sealing performance of the plastic bag sealing point, effectively improves the sealing quality of plastic bags, effectively reduces the risk of radioactive pollutant leakage, better protects the radiation safety and health of operators, protects the safety of the surrounding environment, and prevents secondary pollution. As can be seen from the above, since the portable sealing and cutting machine of the present invention can move forward along the assembled guide rail assembly, the leveling, heat sealing and cutting of plastic bags are all completed automatically without much human intervention, which has the advantages of high automation, convenient use and labor saving. In addition, this invention has two working modes. In addition to the highly automated and labor-saving guide rail automatic walking working mode mentioned above, this invention also provides an alternative handheld working mode. That is, the hand can be used to move forward instead of walking on the guide rail. This is suitable for working conditions where mobile lifting trolleys and their lifting platforms are not suitable, which greatly expands the application scope of this invention. It has the advantages of strong versatility and wide applicability.

[0016] The beneficial technical effects of the present invention are as follows:

[0017] This invention enables rapid, automatic heat sealing and cutting of plastic bags after they have been filled with waste filters. This significantly improves the sealing efficiency, enhances the forming quality and sealing performance of the plastic bags at the sealing point, effectively improves the sealing quality, reduces the risk of radioactive contaminant leakage, better protects the radiation safety and health of operators, safeguards the surrounding environment, and prevents secondary pollution. It also features high automation, ease of use, labor saving, versatility, and wide applicability, making it suitable for various high-risk or high-isolation applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a diagram showing the unfolded state of the assembled guide rail assembly.

[0020] Figure 3 This is a diagram showing the assembled guide rail assembly in its folded-up state.

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the cutting machine after one side wall has been removed.

[0022] Figure 5 This is a schematic diagram of the internal structure of the sealing and cutting machine.

[0023] Part numbering descriptions in the diagram: 1. Assembled guide rail assembly, 1-1. Folding guide rail, 1-1-1. L-shaped steel plate, 1-1-2. Horizontal connecting plate, 1-1-3. Hinge, 1-2. Card holder, 1-2-1. Inverted stepped groove, 1-3. Rod clamp, 1-3-1. Positioning block, 1-3-2. Upright rod, 1-3-3. Arc clamp, 1-4. Double-layer clamping rod; 2. Portable sealing and cutting machine, 2-1. Housing, 2-1-1. Handle, 2-1-2 1. Walking wheels; 2-1-3. Bag inlet trough; 2-2. Feeding wheels; 2-3. Heating block; 2-4. Heat sealing wheel; 2-5. Leveling wheel; 2-6. Cutting wheel; 2-7. Separating wheel; 2-8. Synchronous gear; 2-9. Stepper motor; 2-10. Synchronous belt; 2-11. Synchronous belt pulley; 3. Control device; 4. Mobile lifting trolley; 4-1. Lifting platform; 5. Bolts; 6. Horizontal transmission long shaft; 7. Transmission short shaft; 8. Plastic bag; 9. Waste filter. Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-5As shown, the sealing and cutting device for quickly sealing waste filters according to the present invention consists of an assembled guide rail assembly 1 laid on a lifting platform 4-1 in a mobile lifting trolley 4, a portable sealing and cutting machine 2 moving forward along the assembled guide rail assembly 1, and a matching control device 3. (The lifting platform 4-1 in the mobile lifting trolley 4 is the operating platform mentioned in the present invention; the assembled guide rail assembly 1 supports the portable sealing and cutting machine 2 and serves as the linear guide rail for the portable sealing and cutting machine 2; the portable sealing and cutting machine 2 can quickly and automatically heat-seal and automatically cut the plastic bag 8 after the waste filter 9 is loaded, greatly improving the sealing efficiency of the plastic bag and significantly improving the sealing efficiency of the plastic bag.) The forming quality and sealing performance of the cut are improved, effectively enhancing the sealing quality of plastic bags, reducing the risk of radioactive pollutant leakage, better protecting the radiation safety and health of operators, safeguarding the surrounding environment, and preventing secondary pollution. The control device 3 can control and adjust the temperature of the heating block 2-3 to automatically control the heat sealing temperature, and the control device 3 can control and adjust the speed of the stepper motor 2-9 to automatically control the sealing line speed. The assembled guide rail assembly 1 includes a folding guide rail 1-1, two brackets 1-2 supported at the bottom of the folding guide rail, four rod clamps 1-3 set on the top of the two brackets, and two rod clamps embedded on the same side. The double-layer clamping rod 1-4 (the bracket 1-2 is used to support the folding guide rail 1-1; the folding guide rail 1-1 provides a limiting guide for the linear movement of the portable sealing and cutting machine 2; the rod clamp 1-3 is used to quickly insert and fix the double-layer clamping rod 1-4; the double-layer clamping rod 1-4 is used to clamp and flatten the area to be sealed and cut of the plastic bag 8, preparing for the subsequent automatic heat sealing and automatic cutting of the plastic bag, ensuring sealing quality and sealing effect); the portable sealing and cutting machine 2 includes a shell 2-1 with a rectangular inner cavity and feeding wheels 2-2, heating blocks 2-3, heat sealing wheels 2-4, and leveling wheels 2-2-3, which are installed in pairs in the rectangular inner cavity from front to back and arranged in two layers. 5. Cutting wheel 2-6, separating wheel 2-7, synchronous gear 2-8, and stepper motor 2-9 driving the synchronous gear (housing 2-1 provides the mounting foundation and space for feeding wheel 2-2, heating block 2-3, heat sealing wheel 2-4, leveling wheel 2-5, cutting wheel 2-6, separating wheel 2-7, synchronous gear 2-8, stepper motor 2-9, and synchronous belt 2-10. Stepper motor 2-9 provides driving power for synchronous gear 2-8. Synchronous gear 2-8, in turn, directly or indirectly drives feeding wheel 2-2, heat sealing wheel 2-4, leveling wheel 2-5, cutting wheel 2-6, and separating wheel 2-7 to rotate synchronously via synchronous belt 2-10 and synchronous pulley 2-11).Meanwhile, the plastic bags 8 to be sealed and cut, which enter the bag inlet slots 2-1-3 on both sides of the housing 2-1, are leveled by the two counter-rotating feeding wheels 2-2 and then fed backward to the heating station where the heating block 2-3 is located. The heating block 2-3 provides heat to the plastic bags 8 entering the heating station for fusion. While fusion, the plastic bags 8 continue to move backward to the heat sealing station where the heat sealing wheel 2-4 is located. The two counter-rotating heat sealing wheels 2-4 squeeze and seal the plastic bags 8 entering the heat sealing station. The heat-sealed plastic bags 8 continue to move backward to the leveling station where the leveling wheel 2-5 is located. The two counter-rotating leveling wheels 2-5 perform a second leveling on the plastic bags 8 entering the leveling station. The leveled plastic bags 8 continue to move backward to the cutting station where the cutting wheel 2-6 is located. The two counter-rotating cutting wheels 2-6 perform a second leveling on the plastic bags 8 entering the cutting station. The plastic bag 8 is cut; the cut plastic bag 8 continues to move backward to the fork station where the separating wheel 2-7 is located; the two cut edges of the sealed plastic bag 8 are smoothly and without crowding out of the inner cavity of the housing 2-1, guided by the two separating wheels 2-7 arranged in a V-shape on the left and right. The cutting wheel 2-6 and the leveling wheel 2-5 are directly connected to the synchronous gear 2-8 through the synchronous belt 2-10 and the synchronous pulley 2-11 (the synchronous gear 2-8 directly drives the cutting wheel 2-6 and the leveling wheel 2-5 to rotate synchronously). The heat sealing wheel 2-4 is connected to the cutting wheel 2-6 through the synchronous pulley 2-11 and the synchronous belt 2-10 (the synchronous gear 2-8 indirectly drives the heat sealing wheel 2-4 to rotate synchronously). The feeding wheel 2-2 is connected to the heat sealing wheel 2-4 through the synchronous pulley 2-11 and the synchronous belt 2-10 (the synchronous gear 2-8 indirectly drives the feeding wheel 2-2 to rotate synchronously).

[0026] The folding guide rail 1-1 described in this invention is formed by two L-shaped steel plates 1-1-1 interlocking on their inner sides and overlapping with several horizontal connecting plates 1-1-2 to form a cuboid cavity (the cuboid cavity is the straight-line travel channel and guide channel of the portable sealing and cutting machine 2, and the L-shaped steel plates 1-1-1 provide limiting guidance; the horizontal connecting plates 1-1-2 connect the two L-shaped steel plates 1-1-1 into a whole); the inner groove width of the folding guide rail 1-1 matches the outer width of the portable sealing and cutting machine 2 (ensuring that the portable sealing and cutting machine 2 can travel smoothly in a straight line in the inner groove of the folding guide rail 1-1); a hinged joint 1-1-3 is provided at the center of the length of the folding guide rail 1-1, which can unfold the folding guide rail to a straight working state and fold it into a folded state (for convenient carrying and transportation of this invention).

[0027] In this invention, the two card holders 1-2 are respectively hinged to the front and rear sides of the folding guide rail 1-1 (for easy carrying and transport of this invention); the card holder 1-2 is based on a rectangular block, and has an inverted convex stepped groove 1-2-1 opened from top to bottom at the top. The width of the small opening of the inverted convex stepped groove 1-2-1 matches the outer width of the folding guide rail 1-1 (for easy insertion and support of the folding guide rail 1-1).

[0028] The rod clamp 1-3 described in this invention is composed of a positioning block 1-3-1, a vertical rod 1-3-2, and an arc clamp 1-3-3 connected in sequence (the positioning block 1-3-1 can quickly position and fix the rod clamp 1-3 in the inner cavity of the L-shaped steel plate 1-1-1; the vertical rod 1-3-2 is used to connect the positioning block 1-3-1 and the arc clamp 1-3-3; the arc clamp 1-3-3 is used to clamp the double-layer clamping rod 1-4); the inner diameter of the arc clamp 1-3-3 matches the diameter of the double-layer clamping rod 1-4, and the central angle of the arc clamp 1-3-3 is 180 degrees (which facilitates the smooth insertion of the double-layer clamping rod 1-4 into the arc clamp 1-3-3, and also securely clamps the lower clamping rod in the double-layer clamping rod 1-4).

[0029] The double-layer clamping rod 1-4 described in this invention is a double roller structure consisting of two identical round steel bars arranged with a gap between the upper and lower parts and connected at both ends. The gap between the upper and lower round steel bars is matched with the thickness of the plastic bag 8 (to facilitate clamping and flattening the area of ​​the plastic bag 8 to be sealed and cut, preparing for the subsequent automatic heat sealing and automatic cutting of the plastic bag, and ensuring the sealing quality and sealing effect).

[0030] In this invention, a handle 2-1-1 is installed at the top center of the housing 2-1 (providing an alternative working mode for this invention - a handheld working mode). Walking wheels 2-1-2 are installed at the front and rear ends of the bottom of the housing 2-1 (providing a guide rail-type automatic walking working mode for this invention). Bag inlet grooves 2-1-3 are opened on both side walls of the housing 2-1 (allowing the area to be sealed and cut of the plastic bag 8 to pass through the inner cavity of the housing 2-1). The length of the bag inlet groove 2-1-3 extends from the front end of the side wall to the front end of the synchronous gear 2-8 (ensuring that the cut edge after sealing can be moved out of the inner cavity of the housing 2-1 smoothly and without crowding).

[0031] In this invention, the two side walls of the shell 2-1 are connected by a number of bolts 5 (to improve the overall rigidity of the shell 2-1 and ensure the parallelism of the two side walls).

[0032] In this invention, the feeding wheel 2-2, heat sealing wheel 2-4, leveling wheel 2-5, cutting wheel 2-6, and synchronous gear 2-8 are all mounted on the horizontal transmission shaft 6. The horizontal transmission shaft 6 passes through the rectangular inner cavity of the housing 2-1 and is vertically fixed to the two side walls of the housing 2-1. The separating wheel 2-7 is mounted on the transmission short shaft 7. The two transmission short shafts 7 are fixed to the left and right side walls of the housing 2-1 respectively in a horizontally backward inclined manner (so that the two separating wheels 2-7 are arranged in an outward V-shape, which makes it easy for the cut edge of the sealed plastic bag 8 to move out of the inner cavity of the housing 2-1 smoothly and without crowding).

[0033] In this invention, the stepper motor 2-9 and the heating block 2-3 are electrically connected to the control device 3. (This allows the operator to control and adjust the temperature of the heating block 2-3 by inputting temperature parameters into the control device 3, thereby automatically controlling the heat sealing temperature; similarly, the operator can control and adjust the speed of the stepper motor 2-9 by inputting speed parameters into the control device 3, thereby automatically controlling the sealing and cutting speed. Therefore, this invention features high automation, ease of use, labor saving, strong versatility, and wide applicability.)

[0034] The specific uses of this invention are as follows:

[0035] Before using this invention, assemble it according to the relative assembly relationship shown in the above structural description and accompanying drawings. After assembly, the invention can be put into normal use—first, unfold the folding guide rail 1-1 in the assembled guide rail assembly 1 to a straight working state, and rotate the two brackets 1-2, which are respectively hinged to the front and rear sides of the folding guide rail 1-1, to vertically support the bottom and sides of the folding guide rail 1-1; then, place the assembled guide rail assembly 1 onto the lifting platform 4-1 of the mobile lifting trolley 4, which is located opposite the sealed door installation position of the purification device, and at this time, the waste filter 9 has been transferred from the working position in the purification device along the sealed channel of the plastic bag 8 to the non-closed section of the plastic bag 8 located at the rear end of the lifting platform 4-1, that is, the assembled guide rail assembly 1 is exactly located on the plastic bag. The plastic bag 8 in the area to be sealed is then passed through the gap between the two rows of double-layer clamping rods 1-4. The portable sealing and cutting machine 2 is then inserted into the inner groove of the folding guide rail 1-1, allowing the wheels 2-1-2 at the bottom front and rear ends of the housing 2-1 to move forward in a straight line along the top of the two L-shaped steel plates 1-1-1 in the folding guide rail 1-1. Next, the operation control device 3 starts the stepper motor 2-9 to rotate and the heating block 2-3 to heat the area. The speed of the stepper motor 2-9 is controlled and adjusted by inputting relevant parameters, thereby automatically controlling the sealing line speed. The temperature of the heating block 2-3 is also controlled by inputting relevant parameters.Thus, after the area of ​​the plastic bag 8 to be sealed enters the open end of the bag inlet groove 2-1-3 on both sides of the housing 2-1, it is leveled by the two counter-rotating feeding wheels 2-2 and then fed backward to the heating station where the heating block 2-3 is located. The heating block 2-3 provides heat to the plastic bag 8 entering the heating station for melting. While melting, the plastic bag 8 continues to move backward to the heat sealing station where the heat sealing wheel 2-4 is located. The two counter-rotating heat sealing wheels 2-4 squeeze and seal the plastic bag 8 entering the heat sealing station. The heat-sealed plastic bag 8 continues to move backward to the leveling station where the leveling wheel 2-5 is located. The two counter-rotating leveling wheels 2-5 perform a second leveling on the plastic bag 8 entering the leveling station. The leveled plastic bag 8 continues to move backward to the cutting wheel 2-6. The cutting station features two counter-rotating cutting wheels 2-6 that cut the plastic bag 8 entering the cutting station. The cut plastic bag 8 then moves backward to the fork station where the separating wheel 2-7 is located. Guided by the two outward-facing separating wheels 2-7, the two cut edges of the sealed plastic bag 8 smoothly and without congestion move out of the inner cavity of the housing 2-1. This allows for rapid automatic heat sealing and cutting of the plastic bag 8 after the waste filter 9 is installed, significantly improving the sealing efficiency of the plastic bag, greatly enhancing the forming quality and sealing performance of the sealed area, effectively improving the sealing quality of the plastic bag, effectively reducing the risk of radioactive pollutant leakage, better protecting the radiation safety and health of operators, protecting the safety of the surrounding environment, and preventing secondary pollution.

Claims

1. A closure device for the rapid containment of spent filters, characterized in that: The sealing device is composed of an assembled guide rail assembly (1) laid on a lifting platform (4-1) in a mobile lifting trolley (4), a portable sealing machine (2) moving forward along the assembled guide rail assembly (1), and a matched control device (3); the assembled guide rail assembly (1) comprises a folding guide rail (1-1), two clamping seats (1-2) supported at the bottom of the folding guide rail, four rod clamps (1-3) arranged at the top of the two clamping seats, and double-layer clamping rods (1-4) clamped in the two rod clamps on the same side; the double-layer clamping rod (1-4) is a double-roller structure composed of two identical round steels arranged in an upper-lower gap and capable of rotating relative to each other after being connected at both ends, and the gap between the upper and lower round steels is matched with the thickness of the plastic bag (8); the portable sealing machine (2) comprises a shell (2-1) with a cuboid inner cavity, and feeding wheels (2-2), heating blocks (2-3), heat sealing wheels (2-4), leveling wheels (2-5), cutting wheels (2-6), separating wheels (2-7), synchronous gears (2-8), and stepping motors (2-9) driving the synchronous gears, which are sequentially and in pairs arranged in the cuboid inner cavity from front to back and arranged in two layers in an upper-lower manner; the cutting wheels (2-6) and the leveling wheels (2-5) are directly connected with the synchronous gears (2-8) through synchronous belts (2-10) and synchronous pulleys (2-11), the heat sealing wheels (2-4) are connected with the cutting wheels (2-6) through the synchronous pulleys (2-11) and the synchronous belts (2-10), and the feeding wheels (2-2) are connected with the heat sealing wheels (2-4) through the synchronous pulleys (2-11) and the synchronous belts (2-10); the stepping motors (2-9) and the heating blocks (2-3) are electrically connected with the control device (3).

2. The closure device for quickly and safely storing a used filter according to claim 1, wherein: The folding guide rail (1-1) is a guide rail formed by two L-shaped steel plates (1-1-1) being buckled on the inner sides and being lapped by a plurality of transverse connecting plates (1-1-2) to form a cuboid slot; the inner slot width of the folding guide rail (1-1) is matched with the outer shape width of the portable sealing machine (2); a hinge joint (1-1-3) capable of unfolding the folding guide rail to a straight working state and folding the folding guide rail to a half-folded state is arranged at the length center of the folding guide rail (1-1).

3. The closure device for quickly and safely storing a used filter according to claim 1, wherein: The two clamping seats (1-2) are respectively hingedly connected to the side bottoms of the front end and the rear end of the folding guide rail (1-1); the clamping seat (1-2) is a rectangular block as a base body, and a reverse convex stepped slot (1-2-1) is formed from top to bottom at the top end; the small opening section width of the reverse convex stepped slot (1-2-1) is matched with the outer shape width of the folding guide rail (1-1).

4. The closure device for quickly and safely storing a used filter according to claim 1, wherein: The rod clamp (1-3) is composed of a positioning clamping block (1-3-1), a vertical rod (1-3-2), and a circular arc clamping block (1-3-3) connected in sequence; the inner diameter of the circular arc clamping block (1-3-3) is matched with the diameter of the double-layer clamping rod (1-4), and the central angle of the circular arc clamping block (1-3-3) is 180 degrees.

5. The closure device for quickly and safely storing a used filter according to claim 1, wherein: A handle (2-1-1) is installed in the middle of the top of the shell (2-1), walking wheels (2-1-2) are installed at the front and rear ends of the bottom of the shell (2-1), bag feeding grooves (2-1-3) are formed in the two side walls of the shell (2-1), and the length of the bag feeding grooves (2-1-3) extends from the front end of the side wall to the front end of the synchronous gear (2-8).

6. The closure device for quickly and safely storing a used filter according to claim 1, wherein: The two side walls of the shell (2-1) are connected by a plurality of bolts (5).

7. The closure device for quickly and safely storing a used filter according to claim 1, wherein: The feeding wheel (2-2), the heat sealing wheel (2-4), the leveling wheel (2-5), the cutting wheel (2-6), and the synchronous gear (2-8) are all sleeved on the horizontal transmission long shaft (6), the horizontal transmission long shaft (6) transversely penetrates the cuboid inner cavity of the shell (2-1) and is vertically fixed on the two side walls of the shell (2-1); the separating wheel (2-7) is sleeved on the transmission short shaft (7), and the two transmission short shafts (7) are respectively fixed on the left and right side walls of the shell (2-1) in a horizontal backward inclined manner.

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