High-speed sealing device

Abstract

The invention discloses a high-speed sealing device which comprises two sealing parts, each sealing part comprises an upper top frame and a lower bottom frame, sealing steel belts are arranged between the top frames and the bottom frames, a sealing pressure area is formed between the two sealing steel belts, and a pressurization sealing assembly is installed between the top frames and the bottom frames. The pressurizing sealing assembly is used for generating pressure on the sealing steel belts to improve the bag sealing effect, and the scraping impurity removing assemblies are installed on the sides, away from each other, of the two sealing steel belts and used for cleaning the surfaces of the sealing steel belts; in the working process, a pressing block arranged on the inner side of the sealing steel belt makes contact with the inner wall of the sealing steel belt, when a cam rotates to drive a longitudinal moving plate to do longitudinal reciprocating motion, then a first connecting rod drives a pressing plate to do transverse reciprocating motion in a limiting groove, and when the pressing plate moves towards one side of the pressing plate, the pressing plate is pressed; the pressing block generates pressure towards one side of the sealing pressure area on the sealing steel belt, and the sealing pressure on the sealing bag is increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of sealing devices, and specifically relates to a high-speed sealing device. Background Art

[0002] According to the patent document with the application publication number "CN107434056A" and the invention name "A High-Speed Sealing Machine and Its Preparation Process of Heat-Sealing Tape", it is recorded in the specification: A high-speed sealing machine, its sealing device includes a first sealing device and a second sealing device symmetric to it. The inner sides of the first sealing device and the second sealing device are close to each other, and the sealing working area is between them. Heat-sealing tapes are respectively sleeved on the first sealing device and the second sealing device. Heating blocks for heating the heat-sealing tapes are provided inside both the first sealing device and the second sealing device. The two heating blocks are symmetrically arranged, located on the close side of the two sealing devices and closely attached to the inner sides of their respective heat-sealing tapes. The heat-sealing tape is a Teflon steel tape, that is, a Teflon coating is sprayed on the steel tape. The Teflon steel tape is a circular and bendable structure, but there are still the following defects: When sealing a sealed bag, the sealed bag is clamped between two moving heat-sealing tapes, thereby driving the sealed bag to move. The sealed bag is heated by the heating block, so that the sealed bag melts. Under the action of pressure, the melted liquid adheres. Subsequently, under the action of the cooling block, the melted liquid solidifies, thus completing the sealing of the sealed bag. However, after the sealed bag melts at the sealing part, the melted liquid spreads outward, resulting in a decrease in the liquid thickness, a decrease in the pressure on the sealed bag during sealing, and insufficient pressure, affecting the poor pressing and solidifying effect of the sealed bag sealing. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a high-speed sealing device, which effectively solves the problem that the melted liquid spreads outward and the thickness decreases after the sealed bag melts at the sealing part, resulting in insufficient pressure and affecting the sealing effect.

[0004] To achieve the above object, the present invention provides the following technical solution: A high-speed sealing device includes two sealing members. Each sealing member includes a top frame above and a bottom frame below. A sealing steel tape is provided between the top frame and the bottom frame. A sealing pressure area is formed between the two sealing steel tapes. A pressure-increasing sealing component is installed between the top frame and the bottom frame. The pressure-increasing sealing component is used to generate pressure on the sealing steel tape to improve the bag-sealing effect. Scraping and impurity-removing components are installed on the sides where the two sealing steel tapes are away from each other. The scraping and impurity-removing components are used to clean the surface of the sealing steel tape. An auxiliary moving component is installed between the top frame and the bottom frame. The auxiliary moving component is used to generate an auxiliary thrust on the sealing steel tape to offset the resistance generated on the sealing steel tape when the scraping and impurity-removing component cleans. The pressurized sealing assembly includes two vertical plates fixedly installed between the top frame and the bottom frame. A limiting groove is formed between the two vertical plates. A pressing plate is movably installed inside the limiting groove. A pressing plate is provided on one side of the pressing plate close to the sealing pressure area. A pressing block is fixedly installed on the side of the pressing plate away from the pressing plate. The end of the pressing block contacts the inner wall of the sealing steel belt. A first spring is installed at equal intervals between the pressing plate and the pressing plate. A reciprocating pressing member is installed between the two pressing plates.

[0005] Preferably, a driven roller and a driving roller are rotatably installed between the top frame and the bottom frame. The top end of the driving roller is fixedly connected to the output shaft of the first motor. The first motor is fixedly installed at the top end of the top frame. The sealing steel belt is sleeved outside the driven roller and the driving roller.

[0006] Preferably, the reciprocating pressing member includes a first sliding groove opened on the top frame. The first sliding groove communicates with the limiting groove. A first sliding block is fixedly installed at the top end of the pressing plate. The first sliding block is slidably connected to the first sliding groove. A longitudinal moving plate is provided above the two top frames. Two first connecting rods are symmetrically hinged at the bottom end of the longitudinal moving plate. The bottom ends of the two first connecting rods are respectively hinged to the two first sliding blocks. The top ends of the two first connecting rods are close to each other. A cam is provided above the longitudinal moving plate. The outer wall of the cam contacts the top wall of the longitudinal moving plate. A rotating shaft is fixedly installed on the cam. One end of the rotating shaft is fixedly connected to the output shaft of the second motor. The second motor is fixedly installed on the fixed frame. The fixed frame is fixedly installed at the top ends of the two top frames.

[0007] Preferably, the scraping and impurity removing assembly includes rotating impurity removing members symmetrically arranged on the two sides of the two sealing steel belts away from each other. Mounting plates are symmetrically provided on the upper and lower sides of the rotating impurity removing members. The two mounting plates are respectively fixedly connected to the top frame and the bottom frame.

[0008] Preferably, the rotating impurity removing member includes a rotating shaft rotatably installed between the two mounting plates. Fixed side plates are installed at equal angles on the outside of the rotating shaft. A plate groove is opened inside the fixed side plate. A movable scraping plate is slidably installed inside the plate groove. A second spring is installed at equal intervals on the side of the movable scraping plate close to the rotating shaft. The top end of the second spring is fixedly connected to the inner wall of the plate groove close to the rotating shaft. A first bevel gear is fixedly installed at the top end of the rotating shaft. The first bevel gear is located above the upper mounting plate. A linkage is installed between the first bevel gear and the rotating shaft.

[0009] Preferably, the linkage includes a second bevel gear meshing with the first bevel gear. The second bevel gear is coaxially installed with a transverse rod. The transverse rod is rotatably installed on the rotating frame. The rotating frame is fixedly installed on the top frame. A second sprocket is coaxially installed on the transverse rod. A first sprocket is coaxially installed on the rotating shaft. A chain is installed outside the first sprocket and the second sprocket. The rotation of the rotating shaft drives the transverse rod to rotate, so that the rotation direction of the first sprocket is opposite to the moving direction of the sealing steel belt.

[0010] Preferably, the auxiliary moving component includes a friction roller installed between the top frame and the bottom frame. The friction roller contacts the inner wall of the sealing steel belt. End shafts are symmetrically installed at both ends of the friction roller. The two end shafts are respectively rotatably connected to the top frame and the bottom frame. Fixed tooth plates are equiangularly installed on the outer wall of the upper end shaft. A transverse plate is provided on one side of the end shaft close to the sealing pressure area.

[0011] Preferably, a guiding groove is formed inside the transverse plate. A guiding plate is slidably installed inside the guiding groove. The guiding plate is fixedly connected to the top frame. One-way pushing members are equidistantly installed on one side of the transverse plate close to the end shaft. A second sliding groove is formed on one side of the limiting groove close to the friction roller. A second sliding block is slidably installed inside the second sliding groove. One side of the second sliding block is fixedly connected to the pressing plate. The other side of the second sliding block is hinged to a second connecting rod. One end of the second connecting rod is hinged to the transverse plate.

[0012] Preferably, the one-way pushing member includes fixed seats equidistantly installed on one side of the transverse plate close to the end shaft. Support plates are symmetrically installed on the fixed seats. A rotating tooth plate is provided between the two support plates. Connecting shafts are symmetrically installed at one end of the rotating tooth plate. The connecting shafts are rotatably connected to the support plates. A torsion spring is installed between the rotating tooth plate and the support plates. A limiting block is provided on one side of the rotating tooth plate close to the vertical plate. The limiting block is fixedly connected to the fixed seat and contacts the side of the rotating tooth plate close to the vertical plate.

[0013] Preferably, a heating block is fixedly installed between the top frame and the bottom frame. The heating block contacts the inner walls on both sides of the sealing steel belt. The position of the heating block corresponds to the position of the first sprocket. A cooling block is installed between the top frame and the bottom frame. The cooling block contacts the inner wall on one side of the sealing steel belt close to the sealing pressure area. The cooling block is located on the side of the friction roller away from the vertical plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1) During operation, the pressing block on the inner side of the sealing steel belt contacts the inner wall of the sealing steel belt. When the cam rotates to drive the longitudinal movement plate to move longitudinally back and forth, and then drives the pressing plate to move horizontally back and forth in the limiting groove through the first connecting rod. When the pressing plate moves towards the pressing plate side, the pressing block generates a pressure on the sealing steel belt towards the sealing pressure area side, increasing the sealing pressure on the sealing bag and improving the sealing effect. 2) During operation, when the rotating shaft rotates, it drives the rotating shaft to continuously rotate, and the rotation direction of the rotating shaft is opposite to the moving direction of the sealing steel belt on the side away from the sealing pressure area. Thus, it drives each movable scraper to continuously pass over the surface of the sealing steel belt, generating a scraping effect on the surface of the sealing steel belt, scraping off the impurities adhering to the surface of the sealing steel belt, cleaning the surface of the sealing steel belt, and ensuring the sealing effect of the sealing steel belt. 3) During operation, the heating blocks are in contact with the inner walls on both sides of the sealing steel belt, enabling the surface of the sealing steel belt at the position corresponding to the movable scraper to be heated by the heating blocks, facilitating the melting of impurities adhered to the sealing steel belt for easy scraping. At the same time, the movable scraper is movably installed inside the plate groove, and a second spring is equidistantly installed on the side of the movable scraper close to the rotating shaft, enabling the movable scraper to closely adhere to the surface of the sealing steel belt, improving the scraping effect and ensuring the sealing effect of the sealing steel belt. 4) During operation, when the pressing plate moves towards the pressing plate side, the second connecting rod is used to push the transverse plate to move along the guiding plate. At this time, the rotating toothed plate cannot rotate under the limiting action of the limiting block, and the friction roller is pushed to rotate, making the rotation direction of the friction roller the same as the moving direction of the sealing steel belt, generating a thrust on the sealing steel belt, so that the thrust cancels out the resistance generated by the movable scraper on the sealing steel belt, improving the moving stability of the sealing steel belt and ensuring the sealing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the drawings: Figure 1 is a schematic structural diagram of a high-speed sealing device of the present invention; Figure 2 is a schematic structural diagram of a sealing member of the present invention; Figure 3 is a schematic structural diagram of a pressurized sealing assembly of the present invention; Figure 4 is a schematic structural diagram of a scraping and impurity removing assembly of the present invention; Figure 5 is a schematic structural diagram of a rotating impurity removing member of the present invention; Figure 6 is a schematic structural diagram of a linkage member of the present invention; Figure 7 is a schematic structural diagram of an auxiliary moving assembly of the present invention; Figure 8 is a schematic structural diagram of a transverse plate of the present invention; Figure 9 is a schematic structural diagram of a one-way pushing member of the present invention.

[0017] In the figure: 1. Sealing component; 101. Top rack; 102. Bottom rack; 103. Sealing steel belt; 104. Driven roller; 105. Driving roller; 106. First motor; 107. Heating block; 108. Cooling block; 2. Pressurizing and sealing assembly; 201. Vertical plate; 202. Limiting groove; 203. Pressing plate; 204. Pressing plate; 205. Pressing block; 206. First spring; 207. First chute; 208. First slider; 209. Longitudinal moving plate; 210. First connecting rod; 211. Fixed frame; 212. Second motor; 213. Rotating shaft; 214. Cam; 3. Scraping and impurity removing assembly; 301. Mounting plate; 302. Rotating impurity removing part; 3021. Rotating shaft; 3022. Fixed side plate; 3023. Plate groove; 3024. Movable scraping plate; 3025. Second spring; 3026. First helical gear; 303. Linkage part; 3031. First sprocket; 3032. Chain; 3033. Horizontal rod; 3034. Rotating frame; 3035. Second sprocket; 3036. Second helical gear; 4. Auxiliary moving assembly; 401. Friction roller; 402. End shaft; 403. Fixed toothed plate; 404. Second chute; 405. Second slider; 406. Second connecting rod; 407. Horizontal plate; 408. Guide groove; 409. Guide plate; 410. Unidirectional pushing part; 4101. Fixed seat; 4102. Support plate; 4103. Rotating toothed plate; 4104. Connecting shaft; 4105. Torsion spring; 4106. Limiting block. Detailed implementation mode

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1, consisting of Figures 1-9Provided that, the present invention relates to a high-speed sealing device, which comprises two sealing members 1. The sealing member 1 includes a top frame 101 above and a bottom frame 102 below. A sealing steel belt 103 is provided between the top frame 101 and the bottom frame 102. A sealing pressure zone is formed between the two sealing steel belts 103. A pressurizing sealing assembly 2 is installed between the top frame 101 and the bottom frame 102. The pressurizing sealing assembly 2 is used to generate pressure on the sealing steel belt 103 to improve the bag sealing effect. Scraping and impurity removing assemblies 3 are installed on one side of the two sealing steel belts 103 away from each other. The scraping and impurity removing assemblies 3 are used to clean the surface of the sealing steel belt 103. An auxiliary moving assembly 4 is installed between the top frame 101 and the bottom frame 102. The auxiliary moving assembly 4 is used to generate an auxiliary thrust on the sealing steel belt 103 to offset the resistance generated on the sealing steel belt 103 during the cleaning of the scraping and impurity removing assemblies 3. A driven roller 104 and a driving roller 105 are rotatably installed between the top frame 101 and the bottom frame 102. The top end of the driving roller 105 is fixedly connected to the output shaft of a first motor 106. The first motor 106 is fixedly installed at the top end of the top frame 101. The sealing steel belt 103 is sleeved outside the driven roller 104 and the driving roller 105; The pressurizing and sealing assembly 2 includes two vertical plates 201 fixedly installed between the top frame 101 and the bottom frame 102. A limiting groove 202 is formed between the two vertical plates 201. A pressing plate 203 is movably installed inside the limiting groove 202. A pressing plate 204 is provided on one side of the pressing plate 203 close to the sealing pressure area. A pressing block 205 is fixedly installed on the side of the pressing plate 204 away from the pressing plate 203. The end of the pressing block 205 contacts the inner wall of the sealing steel belt 103. A first spring 206 is equidistantly installed between the pressing plate 203 and the pressing plate 204. A reciprocating pressing member is installed between the two pressing plates 203. The reciprocating pressing member includes a first sliding groove 207 formed on the top frame 101. The first sliding groove 207 communicates with the limiting groove 202. The top end of the pressing plate 203 is fixedly installed with a first slider 208. The first slider 208 is slidably connected to the first sliding groove 207. Above the two top frames 101, there is a longitudinal moving plate 209. Two first connecting rods 210 are symmetrically hinged to the bottom end of the longitudinal moving plate 209. The bottom ends of the two first connecting rods 210 are respectively hinged to the two first sliders 208. The top ends of the two first connecting rods 210 are close to each other. Above the longitudinal moving plate 209, there is a cam 214. The outer wall of the cam 214 contacts the top wall of the longitudinal moving plate 209. A rotating shaft 213 is fixedly installed on the cam 214. One end of the rotating shaft 213 is fixedly connected to the output shaft of the second motor 212. The second motor 212 is fixedly installed on the fixing frame 211. The fixing frame 211 is fixedly installed on the top ends of the two top frames 101. The pressing block 205 inside the sealing steel belt 103 contacts the inner wall of the sealing steel belt 103. When the cam 214 rotates to drive the longitudinal moving plate 209 to move longitudinally and reciprocally, and then drives the pressing plate 203 to move transversely and reciprocally in the limiting groove 202 through the first connecting rod 210. When the pressing plate 203 moves towards the pressing plate 204, the pressing block 205 generates a pressure on the sealing steel belt 103 towards the sealing pressure area, increasing the sealing pressure on the sealed bag and improving the sealing effect.

[0020] The scraping and impurity removing assembly 3 includes rotating impurity removing members 302 symmetrically arranged on the mutually remote sides of the two sealing steel belts 103. Mounting plates 301 are symmetrically arranged on the upper and lower sides of the rotating impurity removing members 302. The two mounting plates 301 are respectively fixedly connected to the top frame 101 and the bottom frame 102. The rotating impurity removing member 302 includes a rotating shaft 3021 rotatably mounted between the two mounting plates 301. Fixed side plates 3022 are equiangularly mounted on the outer side of the rotating shaft 3021. A plate groove 3023 is formed inside the fixed side plate 3022. A movable scraping plate 3024 is slidably mounted inside the plate groove 3023. A second spring 3025 is equidistantly mounted on the side of the movable scraping plate 3024 close to the rotating shaft 3021. The top end of the second spring 3025 is fixedly connected to the inner wall of the side of the plate groove 3023 close to the rotating shaft 3021. A first bevel gear 3026 is fixedly mounted at the top end of the rotating shaft 3021. The first bevel gear 3026 is located above the upper mounting plate 301. A linkage member 303 is mounted between the first bevel gear 3026 and the rotating shaft 213. The linkage member 303 includes a second bevel gear 3036 meshing with the first bevel gear 3026. A transverse rod 3033 is coaxially mounted on the second bevel gear 3036. The transverse rod 3033 is rotatably mounted on a rotating frame 3034. The rotating frame 3034 is fixedly mounted on the top frame 101. A second sprocket 3035 is coaxially mounted on the transverse rod 3033. A first sprocket 3031 is coaxially mounted on the rotating shaft 213. A chain 3032 is mounted on the outer sides of the first sprocket 3031 and the second sprocket 3035. When the rotating shaft 213 rotates, it drives the transverse rod 3033 to rotate, such that the rotating direction of the first sprocket 3031 is opposite to the moving direction of the sealing steel belt 103. When the rotating shaft 213 rotates, it drives the rotating shaft 3021 to continuously rotate, and the rotating direction of the rotating shaft 3021 is opposite to the moving direction of the sealing steel belt 103 on the side away from the sealing pressure area, thereby driving each movable scraping plate 3024 to continuously pass over the surface of the sealing steel belt 103, generating a scraping effect on the surface of the sealing steel belt 103, thus scraping off the impurities adhering to the surface of the sealing steel belt 103, cleaning the surface of the sealing steel belt 103, and ensuring the sealing effect of the sealing steel belt 103.

[0021] The auxiliary moving component 4 includes a friction roller 401 installed between the top frame 101 and the bottom frame 102. The friction roller 401 is in contact with the inner wall of the sealing steel belt 103. End shafts 402 are symmetrically installed at both ends of the friction roller 401. The two end shafts 402 are respectively rotationally connected to the top frame 101 and the bottom frame 102. Fixed tooth plates 403 are installed at equal angles on the outer wall of the upper end shaft 402. A transverse plate 407 is provided on one side of the end shaft 402 close to the sealing pressure area. A guiding groove 408 is formed inside the transverse plate 407. A guiding plate 409 is slidably installed inside the guiding groove 408. The guiding plate 409 is fixedly connected to the top frame 101. One-way pushing members 410 are installed at equal distances on one side of the transverse plate 407 close to the end shaft 402. A second sliding groove 404 is formed on one side of the limiting groove 202 close to the friction roller 401. A second sliding block 405 is slidably installed inside the second sliding groove 404. One side of the second sliding block 405 is fixedly connected to the pressing plate 203. The other side of the second sliding block 405 is hinged to a second connecting rod 406. One end of the second connecting rod 406 is hinged to the transverse plate 407. The one-way pushing member 410 includes fixed seats 4101 installed at equal distances on one side of the transverse plate 407 close to the end shaft 402. Support plates 4102 are symmetrically installed on the fixed seats 4101. A rotating tooth plate 4103 is provided between the two support plates 4102. Connecting shafts 4104 are symmetrically installed at one end of the rotating tooth plate 4103. The connecting shafts 4104 are rotationally connected to the support plates 4102. A torsion spring 4105 is installed between the rotating tooth plate 4103 and the support plates 4102. A limiting block 4106 is provided on one side of the rotating tooth plate 4103 close to the vertical plate 201. The limiting block 4106 is fixedly connected to the fixed seat 4101 and is in contact with one side of the rotating tooth plate 4103 close to the vertical plate 201. When the pressing plate 203 moves towards the pressing plate 204, the transverse plate 407 is pushed to move along the guiding plate 409 through the second connecting rod 406. At this time, the rotating tooth plate 4103 cannot rotate under the limiting action of the limiting block 4106, and the friction roller 401 is pushed to rotate, so that the rotating direction of the friction roller 401 is the same as the moving direction of the sealing steel belt 103, generating a thrust on the sealing steel belt 103, so that the thrust cancels out the resistance generated by the movable scraping plate 3024 on the sealing steel belt 103, improving the moving stability of the sealing steel belt 103 and ensuring the sealing efficiency.

[0022] A heating block 107 is fixedly installed between the top frame 101 and the bottom frame 102. The heating block 107 is in contact with the inner walls on both sides of the sealing steel belt 103. The position of the heating block 107 corresponds to the position of the first sprocket 3031. A cooling block 108 is installed between the top frame 101 and the bottom frame 102. The cooling block 108 is in contact with the inner wall of the sealing steel belt 103 on the side close to the sealing pressure area. The cooling block 108 is located on the side of the friction roller 401 away from the vertical plate 201. The heating block 107 is in contact with the inner walls on both sides of the sealing steel belt 103, so that the surface of the sealing steel belt 103 at the position corresponding to the movable scraper 3024 can be heated by the heating block 107, which is convenient for melting the impurities adhered to the sealing steel belt 103 and scraping them off. At the same time, the movable scraper 3024 is movably installed inside the plate groove 3023. A second spring 3025 is equidistantly installed on the side of the movable scraper 3024 close to the rotating shaft 3021, so that the movable scraper 3024 can be closely attached to the surface of the sealing steel belt 103, improving the scraping effect and ensuring the sealing effect of the sealing steel belt 103.

[0023] Working principle: During operation, first turn on the two first motors 106 to make the two driving rollers 105 rotate, thereby driving the sealing steel belt 103 to continuously move around the outside of the driven roller 104 and the driving roller 105, so that the sealing steel belts 103 on both sides of the sealing pressure area move from the heating block 107 towards the cooling block 108. The heating block 107 and the cooling block 108 are powered on. The heating block 107 can heat the sealing steel belt 103, and the cooling block 108 can cool the sealing steel belt 103. The seal bag to be sealed is sent between the two sealing steel belts 103. The two sealing steel belts 103 clamp the seal bag and move towards the other end. When the seal bag moves between the two heating blocks 107, the heating block 107 transfers heat to the seal bag, causing the seal bag to melt and stick to each other. Then, when the seal bag moves between the two cooling blocks 108, the melted and adhered seal bag mouths are cooled and solidified into one body, thereby sealing the seal bag by adhesion. Finally, the sealed seal bag is removed from the other end. During use, turn on the second motor 212 to make the rotating shaft 213 rotate, and then drive the cam 214 to rotate. During the rotation of the cam 214, it continuously pushes the longitudinal movement plate 209 to move longitudinally back and forth, and then pushes the pressing plate 203 to move horizontally in the limit groove 202 through the first connecting rod 210. When the pressing plate 203 moves towards the pressing block 204, the first spring 206 is compressed, causing the pressing block 205 to move away from the inner wall of the sealing steel belt 103. And the pressing block 205 is arranged close to the first sliding groove 207. When the two pressing blocks 205 apply pressure to the sealing pressure area of the two sealing steel belts 103, the pressure on the melted seal bag mouth is increased, improving the plastic melting and adhesion effect and the sealing effect. During the rotation of the rotating shaft 213, the first sprocket 3031, the second sprocket 3035 and the chain 3032 drive the transverse rod 3033 to rotate, and then the second helical gear 3036 and the first helical gear 3026 drive the rotating shaft 3021 to rotate, so that the rotation direction of the rotating shaft 3021 is opposite to the moving direction of the sealing steel belt 103 on the side away from the sealing pressure area. During the rotation, the movable scraper 3024 continuously scrapes the surface of the sealing steel belt 103, so as to scrape off the impurities adhering to the surface of the sealing steel belt 103, clean the surface of the sealing steel belt 103, and ensure the sealing effect of the sealing steel belt 103. The movable scraper 3024 is movably installed inside the plate groove 3023, and a second spring 3025 is equidistantly installed on the side of the movable scraper 3024 close to the rotating shaft 3021, so that the movable scraper 3024 can be closely attached to the surface of the sealing steel belt 103 to improve the scraping effect. The heating block 107 contacts the inner walls on both sides of the sealing steel belt 103, so that the contact position between the sealing steel belt 103 and the movable scraper 3024 is heated under the action of the heating block 107, so that the impurities adhering to the surface of the sealing steel belt 103 are melted, which is convenient for scraping; When the pressing plate 203 moves towards the pressing plate 204, the second connecting rod 406 pushes the transverse plate 407 to move along the guide plate 409. At this time, the rotating toothed plate 4103 cannot rotate under the limiting action of the limiting block 4106, so as to generate a thrust on the fixed toothed plate 403, thereby pushing the friction roller 401 to rotate, so that the rotation direction of the friction roller 401 is the same as the moving direction of the sealing steel belt 103, so that the friction roller 401 generates a thrust on the sealing steel belt 103, and the thrust cancels out the resistance generated by the movable scraper 3024 on the sealing steel belt 103, which is convenient for the sealing steel belt 103 to drive the sealed bag to move. When the pressing plate 203 moves back, it drives the transverse plate 407 to move back. At this time, there is no limit on the other side of the rotating toothed plate 4103, so that the rotating toothed plate 4103 rotates, and the friction roller 401 will not rotate when the transverse plate 407 moves back.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed sealing device, comprising two sealing members (1), characterized in that: The sealing member (1) includes a top frame (101) above and a bottom frame (102) below. A sealing steel belt (103) is provided between the top frame (101) and the bottom frame (102). A sealing pressure zone is formed between the two sealing steel belts (103). A pressurizing and sealing assembly (2) is installed between the top frame (101) and the bottom frame (102). The pressurizing and sealing assembly (2) is used to generate pressure on the sealing steel belt (103) to improve the bag sealing effect. Scraping and impurity removing assemblies (3) are installed on one side of the two sealing steel belts (103) away from each other. The scraping and impurity removing assemblies (3) are used to clean the surface of the sealing steel belt (103). An auxiliary moving assembly (4) is installed between the top frame (101) and the bottom frame (102). The auxiliary moving assembly (4) is used to generate an auxiliary thrust on the sealing steel belt (103) to counteract the resistance generated on the sealing steel belt (103) during the cleaning of the scraping and impurity removing assemblies (3). The pressurizing and sealing assembly (2) includes two vertical plates (201) fixedly installed between the top frame (101) and the bottom frame (102). A limiting groove (202) is formed between the two vertical plates (201). A pressing plate (203) is movably installed inside the limiting groove (202). A pressing plate (204) is provided on one side of the pressing plate (203) close to the sealing pressure zone. A pressing block (205) is fixedly installed on the side of the pressing plate (204) away from the pressing plate (203). The end of the pressing block (205) is in contact with the inner wall of the sealing steel belt (103). First springs (206) are equidistantly installed between the pressing plate (203) and the pressing plate (204). A reciprocating pressing member is installed between the two pressing plates (203).

2. The high-speed sealing device according to claim 1, characterized in that: A driven roller (104) and a driving roller (105) are rotatably installed between the top frame (101) and the bottom frame (102). The top end of the driving roller (105) is fixedly connected to the output shaft of a first motor (106). The first motor (106) is fixedly installed at the top end of the top frame (101). The sealing steel belt (103) is sleeved outside the driven roller (104) and the driving roller (105).

3. A high-speed sealing device according to claim 1, characterized in that: The reciprocating pressing member includes a first chute (207) formed in the top frame (101). The first chute (207) communicates with the limiting groove (202). The top end of the pressing plate (203) is fixedly provided with a first slider (208). The first slider (208) is slidably connected to the first chute (207). Above the two top frames (101), there is a longitudinal moving plate (209). The bottom end of the longitudinal moving plate (209) is symmetrically hinged with two first connecting rods (210). The bottom ends of the two first connecting rods (210) are respectively hinged with the two first sliders (208). The top ends of the two first connecting rods (210) are close to each other. Above the longitudinal moving plate (209), there is a cam (214). The outer wall of the cam (214) contacts the top wall of the longitudinal moving plate (209). A rotating shaft (213) is fixedly installed on the cam (214). One end of the rotating shaft (213) is fixedly connected to the output shaft of the second motor (212). The second motor (212) is fixedly installed on the fixing frame (211). The fixing frame (211) is fixedly installed on the tops of the two top frames (101).

4. A high-speed sealing device according to claim 1, characterized in that: The scraping and impurity removing assembly (3) includes rotating impurity removing members (302) symmetrically arranged on the mutually remote sides of the two sealing steel belts (103). Mounting plates (301) are symmetrically arranged on the upper and lower sides of the rotating impurity removing member (302). The two mounting plates (301) are respectively fixedly connected to the top frame (101) and the bottom frame (102).

5. The high-speed sealing device according to claim 4, characterized in that: The rotating impurity removing member (302) includes a rotating shaft (3021) rotatably installed between the two mounting plates (301). Fixed side plates (3022) are equiangularly installed on the outer side of the rotating shaft (3021). A plate groove (3023) is formed inside the fixed side plate (3022). An active scraping plate (3024) is slidably installed inside the plate groove (3023). Second springs (3025) are equidistantly installed on the side of the active scraping plate (3024) close to the rotating shaft (3021). The top ends of the second springs (3025) are fixedly connected to the inner wall of the side of the plate groove (3023) close to the rotating shaft (3021). A first helical gear (3026) is fixedly installed at the top end of the rotating shaft (3021). The first helical gear (3026) is located above the upper mounting plate (301). A linkage member (303) is installed between the first helical gear (3026) and the rotating shaft (213).

6. The high-speed sealing device according to claim 5, characterized in that: The linkage member (303) includes a second helical gear (3036) meshing with the first helical gear (3026). A transverse rod (3033) is coaxially installed on the second helical gear (3036). The transverse rod (3033) is rotatably installed on a rotating frame (3034), and the rotating frame (3034) is fixedly installed on the top frame (101). A second sprocket (3035) is coaxially installed on the transverse rod (3033), and a first sprocket (3031) is coaxially installed on the rotating shaft (213). A chain (3032) is installed on the outer sides of the first sprocket (3031) and the second sprocket (3035). The rotation of the rotating shaft (213) drives the transverse rod (3033) to rotate, so that the rotation direction of the first sprocket (3031) is opposite to the moving direction of the sealing steel belt (103).

7. A high-speed sealing device according to claim 1, characterized in that: The auxiliary moving assembly (4) includes a friction roller (401) installed between the top frame (101) and the bottom frame (102). The friction roller (401) is in contact with the inner wall of the sealing steel belt (103). End shafts (402) are symmetrically installed at both ends of the friction roller (401). The two end shafts (402) are respectively rotatably connected to the top frame (101) and the bottom frame (102). Fixed toothed plates (403) are equiangularly installed on the outer wall of the upper end shaft (402). A transverse plate (407) is provided on one side of the end shaft (402) close to the sealing pressure zone.

8. The high-speed sealing device according to claim 7, characterized in that: A guide groove (408) is formed inside the transverse plate (407). A guide plate (409) is slidably installed inside the guide groove (408), and the guide plate (409) is fixedly connected to the top frame (101). One-way pushing members (410) are equidistantly installed on one side of the transverse plate (407) close to the end shaft (402). A second chute (404) is formed on one side of the limit groove (202) close to the friction roller (401). A second slider (405) is slidably installed inside the second chute (404). One side of the second slider (405) is fixedly connected to the pressing plate (203), and the other side of the second slider (405) is hinged to a second connecting rod (406). One end of the second connecting rod (406) is hinged to the transverse plate (407).

9. The high-speed sealing device according to claim 8, wherein: The one-way pushing member (410) includes fixed seats (4101) equidistantly installed on one side of the transverse plate (407) close to the end shaft (402). Support plates (4102) are symmetrically installed on the fixed seats (4101). A rotating toothed plate (4103) is provided between the two support plates (4102). Connecting shafts (4104) are symmetrically installed at one end of the rotating toothed plate (4103), and the connecting shafts (4104) are rotatably connected to the support plates (4102). A torsion spring (4105) is installed between the rotating toothed plate (4103) and the support plates (4102). A limit block (4106) is provided on one side of the rotating toothed plate (4103) close to the vertical plate (201). The limit block (4106) is fixedly connected to the fixed seat (4101), and the limit block (4106) is in contact with one side of the rotating toothed plate (4103) close to the vertical plate (201).

10. A high-speed sealing device according to claim 1, characterized in that: A heating block (107) is fixedly installed between the top frame (101) and the bottom frame (102). The heating block (107) is in contact with the inner walls on both sides of the sealing steel belt (103). The position of the heating block (107) corresponds to the position of the first sprocket (3031). A cooling block (108) is installed between the top frame (101) and the bottom frame (102). The cooling block (108) is in contact with the inner wall of the sealing steel belt (103) on the side close to the sealing pressure area. The cooling block (108) is located on the side of the friction roller (401) away from the vertical plate (201).

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