Wide-mouth bottle sealing machine reliable and efficient in sealing

Abstract

The wide-mouth bottle sealing machine reliable and efficient in sealing comprises a sealing mechanism, the sealing mechanism comprises a hot-pressing assembly, a film cutting assembly and a lifting assembly, and the hot-pressing assembly comprises a hot-pressing table, a hot-pressing head located below the hot-pressing table, a hot-pressing telescopic piece and a hot-pressing connecting column; the hot-pressing telescopic piece is an elastic telescopic piece and is positioned between and connected with the hot-pressing head and the hot-pressing table; the upper end of the hot-pressing connecting column penetrates through the hot-pressing table and is in vertical sliding connection with the hot-pressing table; the film cutting assembly comprises a film cutting knife and a film cutting table located below the hot pressing table. A film cutting through opening is vertically formed in the film cutting table, and the upper end of the film cutting knife is fixed in the film cutting through opening; the lower end of the hot-pressing head penetrates through the film cutting through opening and is lower than the lower end of the film cutter, and the height difference is D; the compressible amount of the hot-pressing telescopic piece is larger than D. Heat bonding and cutting of the sealing film are completed at the same station and under the same driving step, the sealing effect is reliable, the equipment structure is compact, the occupied area is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to bottle packaging, and in particular to a wide-mouth bottle sealing machine with reliable and efficient sealing. Background Art

[0002] Wide-mouth bottle mouth sealing packaging is a common bottle packaging sealing method, such as honey, jam and other bottle sealing needs. Wide-mouth bottle mouth sealing packaging includes two main steps:

[0003] 1. Thermal bonding: The sealing film needs to be evenly covered on the mouth of the wide-mouth bottle, and then a heated pressure head is used to press the mouth of the wide-mouth bottle to make the annular end surface of the bottle mouth bonded to the sealing film;

[0004] 2. Cut the film: Use a film cutter to cut off the excess sealing film outside the bottle mouth;

[0005] This completes the basic wide-mouth bottle mouth sealing.

[0006] During the production process, when thermal bonding and film cutting are performed at two stations or divided into two different driving steps, the wide-mouth bottles that have been thermally bonded need to be transferred or occupy the next wide-mouth bottle production station to be thermally bonded, which limits the production efficiency. Summary of the invention

[0007] In order to improve the sealing efficiency of wide-mouth bottles, a wide-mouth bottle sealing machine with reliable and efficient sealing is provided.

[0008] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0009] A wide-mouth bottle sealing machine with reliable and efficient sealing comprises a sealing mechanism, wherein the sealing mechanism comprises a hot pressing assembly for hot pressing and sealing a film, a film cutting assembly for cutting and sealing a film, and a lifting assembly for driving the hot pressing assembly and the film cutting assembly to vertically lift and lower the hot pressing assembly, wherein the hot pressing assembly comprises a hot pressing platform, a hot pressing head, a hot pressing telescopic member, and a hot pressing connecting column;

[0010] The hot pressing head is located below the hot pressing platform;

[0011] The hot pressing telescopic part is an elastic telescopic part, which is located between the hot pressing head and the hot pressing table and connects the two;

[0012] The lower end of the hot pressing connection column is connected to the hot pressing head, and the upper end passes through the hot pressing platform and is vertically slidably connected to the hot pressing platform;

[0013] The film cutting assembly comprises a film cutting table and a film cutting knife;

[0014] The film cutting table is fixedly installed below the hot pressing table, and a film cutting opening is vertically opened on the film cutting table, and the upper end of the film cutting knife is fixed in the film cutting opening;

[0015] The lower end of the heat pressing head passes through the film cutting opening, the lower end of the heat pressing head is lower than the lower end of the film cutting knife and the height difference is D, and the compressible amount of the heat pressing telescopic part is greater than D.

[0016] By adopting the above technical solution, when the wide-mouth bottle sealing machine is sealing, the wide-mouth bottle to be sealed is located below the film cutting assembly and aligned with the hot pressing head, and the sealing film is located between the wide-mouth bottle and the film cutting assembly;

[0017] Then the lifting component drives the hot pressing component and the film cutting component, and the two components are pressed down synchronously until the hot pressing head presses the sealing film against the mouth of the wide-mouth bottle to seal it. The hot pressing head is pressed against the wide-mouth bottle in the opposite direction and stops falling. The film cutting component compresses the hot pressing telescopic part and continues to fall until the film cutting knife cuts off the sealing film outside the mouth of the wide-mouth bottle. Then the lifting component drives the film cutting component and the hot pressing component to reset, thereby completing the sealing work.

[0018] Therefore, the thermal bonding and cutting of the sealing film are completed at the same station and the same driving step, the sealing effect is reliable, the equipment structure is compact, the floor space is reduced, and the production efficiency is improved.

[0019] Optionally, a film spreading assembly is also included, wherein the film spreading assembly includes a film pressing table located below the film cutting table, and the film pressing table is provided with a film pressing opening for the film cutting knife to pass through.

[0020] By adopting the above technical scheme, the film pressing table descends as the film cutting table descends during the operation of the wide-mouth bottle sealing machine, and then the bottom surface of the film pressing table is used to press the sealing film, so that the sealing film covers the mouth of the wide-mouth bottle and maintains an unfolded state. The sealing film covers the mouth of the wide-mouth bottle more evenly, and the sealing is better after the hot pressure head is thermally bonded, thereby reducing the production of defective products.

[0021] Optionally: the film spreading assembly further includes a film pressing connecting column and a film pressing spring.

[0022] The film pressing spring is an elastic telescopic member, which is located between the film cutting table and the film pressing table and connects the two;

[0023] The lower end of the film pressing connection column is fixed to the film pressing platform, the upper end of the film pressing connection column passes through the film cutting platform and is vertically slidably connected to the hot pressing platform, and the upper end of the film pressing connection column is also fixed with a film pressing limit block limitedly located above the film pressing platform.

[0024] By adopting the above technical solution, the film pressing table presses the sealing film through its own gravity and the compression rebound force of the film pressing spring, so that the pressure of the film pressing table on the sealing film can be adaptively adjusted to avoid the sealing film being punctured or broken by the film pressing table when the film is stretched too tight, thereby reducing the possibility of shutdown during the production process and improving production efficiency.

[0025] Optionally: the film spreading assembly includes parallel and horizontal lower guide rollers, the number of the lower guide rollers is at least two and they are located on both sides of the film pressing table, and the bottom surface height of the lower guide rollers is lower than the bottom surface height of the film pressing table.

[0026] By adopting the above technical solution, the side of the lower guide roller is close to the sealing film, so that the sealing film is unfolded and the possibility of folding of the sealing film during the movement and updating process is reduced, thereby ensuring that the sealing film of the wide-mouth bottle is flat and has good sealing performance, and reducing the generation of defective products.

[0027] Optionally, the film spreading assembly includes upper guide rollers, the number of which is at least two and which are located on both sides of the film pressing table, and the position height of the upper guide rollers is higher than the position height of the lower guide rollers.

[0028] By adopting the above technical solution, the side of the upper guide roller is close to the sealing film, and works together with the lower guide roller to further seal the wide-mouth bottle with a smooth sealing film and good sealing performance, thereby reducing the generation of defective products.

[0029] Optionally, the film spreading assembly includes a film lifting platform located below the film pressing platform, the film lifting platform is fixed to the film cutting platform, and a film lifting opening is provided on the film lifting platform for the bottle mouth to pass through.

[0030] By adopting the above technical scheme, the film lifting platform is located below the sealing film. After the film cutting knife cuts off the sealing film, the film lifting platform rises with the film cutting platform, and the sealing film that may be hung on the side of the wide-mouth bottle is lifted up and detached from the wide-mouth bottle at the bottle mouth, thereby releasing the connection between the sealing film and the wide-mouth bottle. The used sealing film can be smoothly pulled by the updated sealing film, avoiding the wide-mouth bottle from being pulled down, thereby improving production efficiency.

[0031] Optionally, an adjustment component is also included, the adjustment component includes a fixed adjustment guide post, a lifting platform vertically slidably connected to the adjustment guide post, and an adjustment positioning member for fixing the position of the lifting platform on the adjustment guide post.

[0032] The lifting assembly includes a lifting cylinder for driving the film cutting assembly and the hot pressing assembly to lift and lower, and the lifting cylinder is installed on the lifting platform.

[0033] By adopting the above technical solution, the fixed position of the lifting platform on the adjusting guide column can be adjusted, and the initial position of the film cutting component and the hot pressing component can be raised and lowered to adjust the shutdown position, so as to match the sealing requirements of wide-mouth bottles of different heights and improve the applicability of the wide-mouth bottle sealing machine.

[0034] Optionally: the adjustment component also includes an adjustment drive component, which includes a sleeve adjustment screw nut and an adjustment screw rod, the adjustment screw nut is fixed to the lifting platform, and the adjustment screw rod is vertically arranged and rotatably connected to the installation site around its own axis.

[0035] By adopting the above technical solution, the adjusting screw nut and the adjusting screw are used as the driving source for adjusting the position of the lifting platform on the adjusting guide column, and the adjustment distance is more precise; in addition, when the adjustment positioning piece is unlocked, it has a self-locking ability to prevent the lifting platform from falling directly, making the adjustment process safer and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of a wide-mouth bottle sealing machine;

[0037] Figure 2 It is a structural schematic diagram of a bottle body positioning component and a bottle body blocking component;

[0038] Figure 3 It is a schematic diagram of the structure of the hot pressing component and the film cutting component;

[0039] Figure 4 It is a schematic diagram of the structure of the hot pressing component;

[0040] Figure 5 It is a schematic diagram of the structure of the membrane cutting component;

[0041] Figure 6 It is a structural schematic diagram of the combination of the hot pressing component, the film cutting component and the film spreading component;

[0042] Figure 7 It is an exploded schematic diagram of the membrane spreading assembly;

[0043] Figure 8 The structure of the sealing mechanism is shown in FIG. Figure 1 ;

[0044] Fig. 9 It is a schematic diagram of the structure of the regulating component;

[0045] Fig.10 The structure of the sealing mechanism is shown in FIG. Figure 2 .

[0046] Figure numerals: 1, conveyor belt; 2, bottle body positioning mechanism; 11, limit rod; 21, bottle body positioning assembly; 211, detector; 212, bottle body positioning piece; 2121, positioning cylinder; 2122, positioning partition; 22, bottle body blocking assembly; 221, blocking cylinder; 222, blocking plate; 3, sealing mechanism; 31, shell; 32, hot pressing assembly; 321, hot pressing table; 322, hot pressing head; 323, hot pressing connecting column; 3231, hot pressing limit block; 324, hot pressing telescopic piece; 33, film cutting assembly; 331, film cutting table; 332, film cutting knife; 3311, film cutting opening; 333, film cutting connecting column; 34, film spreading assembly; 341, upper guide roller; 3 42. Lower guide roller; 343. Film pressing platform; 3431. Film pressing opening; 345. Film pressing connecting column; 3451. Film pressing limit block; 346. Film pressing spring; 347. Film lifting platform; 3741. Film lifting opening; 348. Film lifting connecting column; 3481. Film lifting limit block; 349. Film lifting spring; 35. Adjustment assembly; 351. Adjustment guide column; 352. Adjustment sleeve; 353. Lifting platform; 354. Adjustment positioning member; 355. Adjustment driving member; 3551. Adjustment fixing block; 3552. Adjustment screw; 3553. Adjustment wheel; 3554. Adjustment screw nut; 36. Lifting assembly; 361. Lifting cylinder; 362. Linkage bracket; 4. Column. DETAILED DESCRIPTION

[0047] The present application is further described in detail below in conjunction with the accompanying drawings.

[0048] As attached Figure 1 As shown, a wide-mouth bottle sealing machine with reliable and efficient sealing comprises a horizontal conveyor belt 1, a bottle body positioning mechanism 2 and a sealing mechanism 3.

[0049] The conveyor belt 1 is used to convey wide-mouth bottles. It is a chain conveyor belt 1 with limit rods 11 on both sides, which effectively provide support for the wide-mouth bottles and prevent the wide-mouth bottles from sliding out of the conveyor belt 1.

[0050] As attached Figure 1 and attached Figure 2 As shown, the bottle body positioning mechanism 2 includes a bottle body positioning component 21 and a bottle body blocking component 22 .

[0051] As attached Figure 2As shown, the number of bottle body positioning components 21 is the same as the number of wide-mouth bottles that are sealed at the same time, which can be one or more, and the number is two this time. Two bottle body positioning components 21 are arranged along the conveying direction of the conveyor belt 1. Each group of bottle body positioning mechanisms 2 includes a detector 211 and a bottle body positioning member 212. The detector 211 and the bottle body positioning component 21 are symmetrically arranged on both sides of the conveyor belt 1. The detector 211 is connected to the bottle body positioning member 212 for signal detection of the moving position of the wide-mouth bottle on the conveyor belt 1. When the wide-mouth bottle moves to the position of the detector 211 along the conveyor belt 1, the detector 211 sends an electrical signal to the bottle body positioning member 212. The detector 211 can select a contact sensing detector 211 or a light blocking sensing sensor 211 according to the weight of the wide-mouth bottle. Here, it is an infrared ray sensing detector 211.

[0052] The bottle body positioning member 212 includes a positioning cylinder 2121 which is horizontally arranged and whose ejection direction is perpendicular to the conveying direction of the conveyor belt 1. A positioning baffle 2122 is also fixed to the outer end of the piston rod of the positioning cylinder 2121. The height of the positioning baffle 2122 is higher than the conveyor belt 1 and lower than the height of the wide-mouth bottle mouth on the conveyor belt 1.

[0053] After receiving the electrical signal, the positioning cylinder 2121 of the bottle body positioning member 212 is pushed out, so that the positioning partition 2122 is inserted above the conveyor belt 1. When the side of the wide-mouth bottle hits the positioning partition 2122, the wide-mouth bottle is prevented from moving further, thereby stopping the wide-mouth bottle from moving at a fixed position.

[0054] The bottle blocking assembly 22 is installed on one side of the conveyor belt 1 and is located on the side of the bottle positioning assembly 21 close to the upstream of the conveyor belt 1. The bottle blocking assembly 22 is connected to the detector 211 by signal, and the detector 211 outputs a signal to the bottle positioning member 212 and simultaneously outputs a signal to the bottle blocking assembly 22.

[0055] The bottle blocking assembly 22 includes a blocking cylinder 221 which is horizontally arranged and ejected in a direction perpendicular to the conveying direction of the conveyor belt 1. A blocking plate 222 is fixed to the outer end of the piston rod of the blocking cylinder 221. The blocking plate 222 is higher than the conveyor belt 1 and lower than the height of the mouth of the wide-mouth bottle on the conveyor belt 1. When the bottle blocking assembly 22 receives the signal input by the detector 211, the blocking cylinder 221 ejects and pushes the blocking plate 222 above the conveyor belt 1, thereby preventing the next wide-mouth bottle from continuing to move forward and touching the currently positioned wide-mouth bottle.

[0056] As attached Figure 1 As shown, the sealing mechanism 3 is located above the conveyor belt 1 and is fixed therewith by four vertical columns 4 .

[0057] As attached Figure 1 and attached Figure 3 As shown, the sealing mechanism 3 includes a housing 31 integrated with an operation panel, and a hot pressing assembly 32 and a film cutting assembly 33 located below the housing 31 .

[0058] As attached Figure 4 As shown, the hot pressing assembly 32 includes a hot pressing platform 321 and a hot pressing head 322 located below the hot pressing platform 321. The hot pressing head 322 is an electric heating component that generates heat when powered on. The number of hot pressing heads 322 is equal to the number of wide-mouth bottles that are sealed at the same time, which is two here. The two hot pressing heads 322 are distributed and located directly above the two positioned wide-mouth bottles. The bottom surface size of the hot pressing head 322 is larger than the diameter of the wide-mouth bottle mouth, and its horizontal projection completely covers the wide-mouth bottle mouth.

[0059] Each hot pressing head 322 is provided with a hot pressing connecting column 323 and a hot pressing telescopic member 324 between the hot pressing platform 321. The number of the hot pressing connecting columns 323 is related to the weight of the hot pressing head 322, and the number of the hot pressing connecting columns 323 is three.

[0060] The lower end of the hot pressing connection column 323 is fixedly connected to the hot pressing head 322, the upper end of the hot pressing connection column 323 vertically penetrates the hot pressing platform 321, and the side surface of the upper end of the hot pressing connection column 323 is slidably connected to the hot pressing platform 321. A hot pressing stop block 3231 is also fixed to the end of the hot pressing connection column 323 that is higher than the hot pressing platform 321. Under the gravity of the hot pressing head 322 and the hot pressing connection column 323, the hot pressing stop block 3231 presses against the upper surface of the hot pressing platform 321 and prevents the hot pressing head 322 from falling.

[0061] The hot pressing telescopic part 324 is an elastic telescopic part, which can be a spring, a gas spring, or a mechanical compound spring. Here, a spring is used as an example. There are three hot pressing telescopic parts 324, which are located between the hot pressing platform 321 and the hot pressing head 322 and are each sleeved on the side of a hot pressing connecting column 323. The two ends of the hot pressing telescopic part 324 respectively abut against the hot pressing head 322 and the hot pressing platform 321, thereby stabilizing the hot pressing head 322 and preventing the hot pressing head 322 from shaking. At the same time, the maximum recompression amount of the hot pressing telescopic part 324 is D.

[0062] As attached Figure 5 As shown, the film cutting assembly 33 includes a film cutting platform 331, a film cutting knife 332, and a film cutting connecting column 333. The film cutting platform 331 is located below the hot pressing platform 321, and has two film cutting openings 3311 thereon. The film cutting knife 332 is a vertical tube, which is fixed in the film cutting opening 3311, and the lower end extends downward and has serrations along the annular end surface. The lower end of the hot pressing head 322 passes through the film cutting knife 332, and the bottom surface height position of the hot pressing head 322 is lower than the serration height position of the film cutting knife 332, and the height difference is less than D and greater than the thickness of the sealing film.

[0063] There are four film cutting connection columns 333 , the lower ends of which are fixed to the film cutting stage 331 , and the upper ends of which are fixed to the hot pressing stage 321 , thereby achieving the connection and fixation between the film cutting assembly 33 and the hot pressing assembly 32 .

[0064] As attached Figure 6As described, a film spreading assembly 34 is also installed on the hot pressing assembly 32 and the film cutting assembly 33. The film spreading assembly 34 includes an upper guide roller 341 fixed to the hot pressing platform 321, a lower guide roller 342 fixed to the film cutting platform 331, and a film pressing platform 343 and a film lifting platform 347 located below the film cutting platform 331.

[0065] There are two upper guide rollers 341 , which are respectively located on both sides of the hot pressing platform 321 and are parallel to each other. There are two lower guide rollers 342 , which are parallel to the upper guide rollers 341 and are located below the upper guide rollers 341 in a one-to-one correspondence.

[0066] As attached Figure 7 As shown, the film pressing table 343 is provided with film pressing openings 3431, and the number of the film pressing openings 3431 is equal to the number of wide-mouth bottles to be sealed at the same time, and here there are two, and the two film pressing openings 3431 correspond to the bottom of a film cutting knife 332. The film pressing openings 3431 are circular, coaxial with the film cutting knife 332 and larger than the outer diameter of the film cutting knife 332, and the diameter of the film pressing openings 3431 is also larger than the outer diameter of the mouth of the wide-mouth bottle.

[0067] The film pressing platform 343 is fixed to the film cutting platform 331 through the film pressing connecting pillars 345. There are four film pressing connecting pillars 345, the lower ends of which are fixed to the film pressing platform 343, and the upper sections of which penetrate the film cutting platform 331 and are slidably connected to the film cutting platform 331. The outer layer of the upper end of the film pressing connecting pillar 345 that penetrates the film cutting platform 331 is also fixed with a film pressing limit block 3451, which is pressed against the upper surface of the film cutting platform 331 to prevent the film pressing platform 343 from separating from the film cutting platform 331.

[0068] A film pressing spring 346 is sleeved on the side of the film pressing connecting column 345 . The film pressing spring 346 is located between the film cutting stage 331 and the film pressing stage 343 , and two ends of the film pressing spring 346 abut against the film cutting stage 331 and the film pressing stage 343 , respectively.

[0069] The film lifting platform 347 is located below the film pressing platform 343, and there is a gap between the film lifting platform 347 and the film pressing platform 343. The film lifting platform 347 is provided with a film lifting opening 3741 aligned with the film pressing opening 3431, and the distance between the film lifting openings 3741 is larger than the outer diameter of the wide-mouth bottle mouth. The four corners of the film lifting platform 347 are vertically fixed with film lifting connecting columns 348 to suspend the film lifting platform 347.

[0070] As attached Figure 8 As shown, an adjustment assembly 35 and a lifting assembly 36 are installed in the housing 31 .

[0071] As attached Fig. 9 As shown, the adjustment assembly 35 includes an adjustment guide column 351 , a lifting platform 353 , an adjustment positioning member 354 and an adjustment driving member 355 .

[0072] There are two adjusting guide posts 351, both of which are vertically fixed on the bottom surface of the housing 31. The adjusting guide posts 351 are sleeved with adjusting sleeves 352, and the inner side of the adjusting sleeves 352 slides with the side of the adjusting guide posts 351.

[0073] One side of the lifting platform 353 is fixed to two adjusting sleeves 352 , so that the lifting platform 353 can slide vertically along the adjusting guide column 351 .

[0074] The adjustment positioning member 354 is two sets of screw handles, each set of screw handles corresponds to an adjustment sleeve 352. One end of the screw handle with a screw handle is exposed; the other end of the screw handle has a thread, which passes through the adjustment sleeve 352 and is threadedly connected, and abuts against the adjustment guide column 351, so that the position of the adjustment sleeve 352 and the lifting platform 353 on the adjustment slide column is fixed.

[0075] The adjusting driving member 355 includes two adjusting fixed blocks 3551 and a vertical adjusting screw rod 3552 . The adjusting fixed blocks 3551 are fixed to the inner side of the housing 31 . The adjusting screw rod 3552 simultaneously passes through the two adjusting fixed blocks 3551 and is rotationally connected thereto.

[0076] An adjusting wheel 3553 is fixed to the upper end of the adjusting screw rod 3552 , and an adjusting screw nut 3554 is sleeved on the adjusting screw rod 3552 , and the adjusting screw nut 3554 and the adjusting screw rod 3552 form an adjusting screw.

[0077] The side surface of the adjusting screw nut 3554 is fixed to the lifting platform 353 , so when the adjusting positioning member 354 is unlocked, the adjusting wheel 3553 can be rotated to drive the lifting platform 353 to rise or fall.

[0078] As attached Figure 8 As shown, the bottom surface of the shell 31 is open, and the upper end of the film-lifting connecting column 348 penetrates into the shell 31 and passes through the lifting platform 353.

[0079] A film-lifting limit block 3481 is fixed to the upper end of the film-lifting connecting column 348. At the same time, a film-lifting spring 349 is mounted on the side of the film-lifting connecting column 348 that is higher than the lifting platform 353. Both ends of the film-lifting spring 349 are distributed to press against the upper surface of the lifting platform 353 and the bottom surface of the film-lifting limit block 3481, thereby realizing the suspension of the film-lifting platform 347.

[0080] As attached Fig.10 As shown, a lifting assembly 36 is installed on the lifting platform 353, and the lifting assembly 36 includes a lifting cylinder 361 and a linkage bracket 362. The piston rod of the lifting cylinder 361 is vertically upward, the upper end of the linkage bracket 362 is fixed to the upper end of the piston rod of the lifting cylinder 361, and the lower end of the linkage bracket 362 passes through the housing 31 and is fixed to the hot pressing plate.

[0081] Therefore, in the present application, the height of the lifting platform 353 is first adjusted by adjusting the component 35, so as to change the initial height position of the lower end of the hot pressing component 32 and the film cutting component 33, so as to meet the processing requirements of wide-mouth bottles of different heights;

[0082] The sealing film extends from one side of the sealing mechanism 3, passes between the upper guide roller 341 and the hot pressing table 321, goes around to the side of the lower guide roller 342 away from the film pressing table 343, goes around the lower guide roller 342 from below, and then passes between the film pressing table 343 and the film lifting table 347 and goes out from the other side symmetrically. During the sealing film extension process, the sealing film is kept unfolded and in contact with the upper guide roller 341 and the lower guide roller 342, so that the sealing film is kept unfolded and tensioned between the film pressing table 343 and the film lifting table 347.

[0083] Then, the lifting cylinder 361 is pushed out, driving the linkage bracket 362 to drive the hot pressing assembly 32, the film cutting assembly 33 and the film spreading assembly 34 to descend;

[0084] The descent process is gradually divided into the first process, the second process, the third process, and the fourth process as the descent depth increases:

[0085] The first process: starting from the bottom surface of the film pressing table 343 pressing the sealing film until the sealing film covers the mouth of the wide-mouth bottle;

[0086] During this process, the pressing of the film pressing platform 343 makes the sealing film cover the mouth of the wide-mouth bottle to maintain the expanded state, and the sealing film covers the mouth of the wide-mouth bottle more evenly. The compression and deformation of the film pressing spring 346 makes the pressure of the film pressing platform 343 on the sealing film adaptively adjustable, so as to avoid the sealing film being punctured or broken by the film pressing platform 343 when the film is relatively tight.

[0087] The second process: from the end of the first process to the hot pressing head 322 pressing the mouth of the wide-mouth bottle covered with the sealing film;

[0088] In this process, the heat pressing head 322 is powered on to increase the temperature. When the heat pressing head 322 is pressed against the sealing film, the sealing film is heated so that the sealing film is thermally bonded to the mouth of the wide-mouth bottle.

[0089] The third stage: from the end of the second stage to the film cutting knife 332 penetrating the sealing film;

[0090] During this process, the heated pressure head 322 presses against the wide-mouth bottle in the opposite direction and does not fall, and the film cutting assembly 33 compresses the film pressing spring 346 and continues to fall until the film cutting knife 332 cuts off the sealing film outside the mouth of the wide-mouth bottle;

[0091] After the descending process is completed, the lifting cylinder 361 returns to drive the linkage bracket 362 to drive

[0092] Then the lifting component 36 drives the film cutting component 33 and the hot pressing component 32 to reset, thereby completing the sealing work, and the hot pressing component 32, the film cutting component 33 and the film spreading component 34 rise. During the rising process, the film lifting platform 347 rises against the cut sealing film and detaches from the mouth of the wide-mouth bottle until the hot pressing component 32, the film cutting component 33, and the film spreading component 34 are reset and the sealing film is updated. The film sealing work is completed.

[0093] The wide-mouth bottle sealing machine of the present application completes the thermal bonding and cutting of the sealing film at the same station and in the same driving step, with a reliable sealing effect, and has a compact equipment structure, reduced floor space, and improved production efficiency.

[0094] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of protection required by the present invention, they are protected by patent law.

Claims

1. A wide-mouth bottle sealing machine with reliable and efficient sealing, comprising a sealing mechanism (3), wherein the sealing mechanism (3) comprises a hot pressing component (32) for hot pressing and sealing a film, a film cutting component (33) for cutting and sealing a film, and a lifting component (36) for driving the hot pressing component (32) and the film cutting component (33) to vertically lift and lower the hot pressing component (32) and the film cutting component (33), characterized in that: The hot pressing assembly (32) comprises a hot pressing platform (321), a hot pressing head (322), a hot pressing telescopic member (324), and a hot pressing connecting column (323); The hot pressing head (322) is located below the hot pressing platform (321); The hot pressing telescopic member (324) is an elastic telescopic member, located between the hot pressing head (322) and the hot pressing platform (321) and connecting the two; The lower end of the hot pressing connection column (323) is connected to the hot pressing head (322), and the upper end passes through the hot pressing platform (321) and is vertically slidably connected to the hot pressing platform (321); The film cutting assembly (33) comprises a film cutting table (331) and a film cutting knife (332); The film cutting platform (331) is fixedly installed below the hot pressing platform (321), and the film cutting platform (331) is vertically provided with a film cutting opening (3311), and the upper end of the film cutting knife (332) is fixed in the film cutting opening (3311); The lower end of the heat pressing head (322) passes through the film cutting opening (3311), the lower end of the heat pressing head (322) is lower than the lower end of the film cutting knife (332) and the height difference is D, and the heat pressing telescopic part (324) can be compressed by a volume greater than D.

2. A reliable and efficient wide-mouth bottle sealing machine according to claim 1, characterized in that: It also comprises a film spreading assembly (34), wherein the film spreading assembly (34) comprises a film pressing table (343) located below the film cutting table (331), and the film pressing table (343) is provided with a film pressing opening (3431) for the film cutting knife (332) to pass through.

3. A reliable and efficient wide-mouth bottle sealing machine according to claim 2, characterized in that: The film spreading assembly (34) further comprises a film pressing connecting column (345) and a film pressing spring (346). The film pressing spring (346) is an elastic telescopic component, which is located between the film cutting platform (331) and the film pressing platform (343) and connects the two; The lower end of the film pressing connection column (345) is fixed to the film pressing platform (343), the upper end of the film pressing connection column (345) passes through the film cutting platform (331) and is vertically slidably connected to the hot pressing platform (321), and the upper end of the film pressing connection column (345) is also fixed with a film pressing limit block (3451) limitedly located above the film pressing platform (343).

4. A reliable and efficient wide-mouth bottle sealing machine according to claim 3, characterized in that: The film spreading assembly (34) comprises parallel and horizontal lower guide rollers (342), the number of the lower guide rollers (342) being at least two and being located on both sides of the film pressing platform (343), and the bottom surface height of the lower guide rollers (342) being lower than the bottom surface height of the film pressing platform (343).

5. A reliable and efficient wide-mouth bottle sealing machine according to claim 4, characterized in that: The film spreading assembly (34) comprises upper guide rollers (341), the number of the upper guide rollers (341) being at least two and being located on both sides of the film pressing platform (343), and the position height of the upper guide rollers (341) being higher than the position height of the lower guide rollers (342).

6. A reliable and efficient wide-mouth bottle sealing machine according to claim 2, characterized in that: The film spreading assembly (34) comprises a film lifting platform (347) located below the film pressing platform (343); the film lifting platform (347) is fixed to the film cutting platform (331); and a film lifting opening (3741) is provided on the film lifting platform (347) for the bottle mouth to pass through.

7. A wide-mouth bottle sealing machine with reliable and efficient sealing according to any one of claims 1 to 6, characterized in that: The device further comprises an adjustment assembly (35), wherein the adjustment assembly (35) comprises a fixed adjustment guide column (351), a lifting platform (353) vertically slidably connected to the adjustment guide column (351), and an adjustment positioning member (354) for fixing the position of the lifting platform (353) on the adjustment guide column (351). The lifting component (36) comprises a lifting cylinder (361) for driving the film cutting component (33) and the hot pressing component (32) to lift and lower, and the lifting cylinder (361) is installed on the lifting platform (353).

8. A reliable and efficient wide-mouth bottle sealing machine according to claim 7, characterized in that: The adjustment assembly (35) further comprises an adjustment drive member (355), wherein the adjustment drive member (355) comprises a sleeve-connected adjustment screw nut (3554) and an adjustment screw rod (3552), wherein the adjustment screw nut (3554) is fixed to the lifting platform (353), and the adjustment screw rod (3552) is vertically arranged and rotatably connected to the installation site with its own axis as the axis.

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