Square cap automatic double-sided film sealing device

Abstract

The application relates to a full-automatic double-sided film sealing device for square caps, which comprises a workbench, a top film mechanism, a bottom film mechanism and a feeding mechanism, the feeding mechanism, the top film mechanism and the bottom film mechanism are sequentially communicated to form a channel for workpiece movement, the workbench is further provided with a top film feeding mechanism and a bottom film feeding mechanism, the top film feeding mechanism and the bottom film feeding mechanism are rotationally connected with the workbench, the top film feeding mechanism is communicated with the top film mechanism, the bottom film feeding mechanism is communicated with the bottom film mechanism, the top film mechanism comprises a top sealing assembly and a limiting assembly, the top sealing assembly and the limiting assembly are oppositely arranged and slidably connected with the workbench, and the bottom film mechanism is slidably connected with the workbench. The process of the top film mechanism and the process of the bottom film mechanism are synchronously carried out to improve the work efficiency, when the top film mechanism and the bottom film mechanism are static, the top film feeding mechanism, the bottom film feeding mechanism and the feeding mechanism are synchronously operated to transport the workpiece to the next process, the workpiece heat sealing efficiency is improved, and the product yield is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of biological medicine, in particular to a full-automatic double-sided film sealing device for square covers. BACKGROUND

[0002] A cover is an object that covers or seals a container or utensil to prevent the leakage, contamination or deterioration of the contents. Covers are usually made of plastic, metal or rubber and have sealing properties that can effectively maintain the freshness and hygiene of the contents in the container. Covers can also be designed in different shapes and structures to meet different sealing needs according to the shape and purpose of the container.

[0003] In order to meet the needs of containers, square covers have been developed. However, during the processing of square covers, both sides need to be sealed with film. The existing processing technology requires manual assistance for loading and unloading the covers, positioning the covers and sealing the covers. This processing method is slow and inefficient. SUMMARY

[0004] In order to improve the sealing efficiency of the cover, the present application provides a full-automatic double-sided film sealing device for square covers.

[0005] The full-automatic double-sided film sealing device for square covers provided by the present application adopts the following technical solution:

[0006] A full-automatic double-sided film sealing device for square covers includes a workbench, a top film mechanism, a bottom film mechanism and a feeding mechanism. The feeding mechanism, the top film mechanism and the bottom film mechanism are sequentially connected to form a channel for the movement of the workpiece. The workbench is also provided with a top film loading mechanism and a bottom film loading mechanism. The top film loading mechanism and the bottom film loading mechanism are both rotationally connected to the workbench. The top film loading mechanism is connected to the top film mechanism, and the bottom film loading mechanism is connected to the bottom film mechanism. The top sealing assembly and the limiting assembly are oppositely arranged and slidably connected to the workbench for sealing the bottom of the workpiece. The central axis of the top film mechanism is parallel to the central axis of the bottom film mechanism. The bottom film mechanism is slidably connected to the workbench for sealing the top of the workpiece.

[0007] By adopting the above technical solution, the top film loading mechanism delivers film to the top film mechanism, and the bottom film loading mechanism delivers film to the bottom film mechanism. The workpiece is sequentially conveyed from the top film mechanism to the bottom film mechanism through the feeding mechanism. The bottom of the workpiece is heat sealed at the top film mechanism, and the film on the bottom of the workpiece is heat sealed at the bottom film mechanism. The process of the top film mechanism and the process of the bottom film mechanism are synchronized to improve the work efficiency. When the top film mechanism and the bottom film mechanism are stationary, the top film loading mechanism, the bottom film loading mechanism and the feeding mechanism operate synchronously to transport the workpiece to the next process, thereby greatly improving the efficiency of the workpiece heat sealing, reducing the influence of human factors and improving the yield of the product.

[0008] Optionally, the limiting assembly comprises a limiting cylinder and a limiting block, the limiting cylinder is connected to the top of the workbench, the limiting block is connected to the piston rod of the limiting cylinder, the top sealing assembly comprises a top sealing cylinder and a hot sealing head, the top sealing assembly is connected to the inside of the workbench, the hot sealing head is connected to the piston rod of the top sealing cylinder, the piston rod of the limiting cylinder and the piston rod of the top sealing assembly are oppositely arranged.

[0009] By adopting the above technical scheme, when the workpiece is transferred between the limiting cylinder and the top sealing cylinder, the limiting cylinder drives the limiting piece to abut against the top of the workpiece, and plays a role of limiting and supporting the workpiece, the top sealing cylinder drives the hot sealing head to move towards the workpiece, the hot sealing head generates heat to melt and adhere the sealing film located at the bottom of the workpiece to the opening at the bottom of the workpiece, the limiting cylinder and the top sealing cylinder cooperate to extrude the workpiece and the sealing film, so that the sealing film forms a sealing cover to seal the bottom opening of the workpiece, the sealing cover is separated from the sealing film, the workpiece and the sealing film move towards two different directions after heat sealing, the risk of the sealing film winding the workpiece is reduced, and the quality of heat sealing is improved.

[0010] Optionally, the top film mechanism further comprises a pre-top assembly, the pre-top assembly is connected to the workbench between the top film feeding mechanism and the limiting assembly, the pre-top assembly comprises a pre-top cylinder and a pre-top knife, the pre-top cylinder is connected to the workbench, and the piston rod of the pre-top cylinder is arranged towards the workbench and connected with the pre-top knife.

[0011] By adopting the above technical scheme, the sealing film input from the top film feeding mechanism passes through the pre-top assembly, the pre-top cylinder periodically drives the pre-top knife to cut the passing sealing film, the sealing film is cut to produce a cut mark, the sealing film is pre-cut to preliminarily separate the sealing cover from the sealing film, and in the process of sealing the workpiece, the efficiency of separating the sealing cover from the sealing film is improved, and the risk of the sealing cover adhering to the sealing film is reduced.

[0012] Optionally, the top film feeding mechanism comprises a top film winding roller and a top film guide assembly, the top film winding roller is rotatably connected to the workbench, the top film guide assembly comprises a first clamping plate and a plurality of first guide plates, the plurality of first guide plates are connected to the workbench between the top film winding roller and the top film mechanism to form a channel for the movement of the sealing film, the first clamping plate abuts against the workbench in the channel, the workbench is provided with a top film driving motor and a top film winding drum, and the output shaft of the top film driving motor is connected with the top film winding drum for driving the sealing film to move.

[0013] By adopting the above technical scheme, the top film driving motor drives the top film winding drum to rotate, drives the sealing film to move from the top film winding roller through the top film guide assembly, the pre-top assembly and the top sealing assembly, and the top film driving motor intermittently moves the groove, so as to cooperate with the pre-top assembly and the top sealing assembly. When the top film driving motor rotates, the pre-top assembly and the top sealing assembly are in an open state. When the top film driving motor is in a stationary state, the pre-top assembly performs a film cutting operation, and the top sealing assembly performs a heat sealing operation. The top film feeding mechanism cooperates with the top film mechanism, thereby greatly improving the transmission, pre-cutting and heat sealing efficiency of the sealing film, reducing the error caused by manual production, and improving the quality of the sealing film.

[0014] Optionally, the feeding mechanism comprises a first feeding guide rail, a second feeding guide rail and a feeding cylinder. The first feeding guide rail is vertically arranged and communicates with the second feeding guide rail. The feeding cylinder is connected to one end of the second feeding guide rail. The other end of the second feeding rail communicates with the top film mechanism. The piston rod of the feeding cylinder extends and retracts along the length direction of the second feeding guide rail.

[0015] By adopting the above technical scheme, the workpiece is continuously conveyed between the first feeding guide rail and the second feeding guide rail by the first feeding guide rail. The feeding cylinder pushes the workpiece into the top film mechanism one by one. During the heat sealing operation of the top film mechanism, the workpiece to be heat sealed is in the pushing process. After the heat sealing is completed, the workpiece to be heat sealed is pushed into the top film mechanism. The production efficiency is greatly improved.

[0016] Optionally, the workbench is provided with a conveying mechanism. The conveying mechanism comprises a conveying guide rail, a first conveying cylinder and a second conveying cylinder. One end of the conveying guide rail communicates with the top sealing mechanism, and the other end communicates with the bottom film mechanism. The first conveying cylinder is connected with the conveying guide rail in parallel. The second conveying cylinder is connected with the piston rod of the first conveying cylinder in perpendicular.

[0017] By adopting the above technical scheme, the first conveying cylinder drives the second conveying cylinder to move in two degrees of freedom. When the second conveying cylinder is retracted, the first conveying cylinder bypasses to the side of the workpiece close to the top film mechanism and pushes the workpiece with a preliminary sealing film into the bottom film mechanism. When the top film mechanism is heat sealed, the first conveying cylinder and the second conveying cylinder move towards the top film mechanism. When the heat sealing operation is completed, the first conveying cylinder drives the workpiece to move in cooperation with the second conveying cylinder, so that the top film mechanism and the bottom film mechanism can be efficiently matched, and the production efficiency is greatly improved.

[0018] Optionally, the top film mechanism is connected with an air nozzle. The opening of the air nozzle is arranged towards the side of the conveying guide rail close to the top film mechanism.

[0019] By adopting the above technical scheme, the top film mechanism completes the top sealing of the bottom cover, the limiting assembly and the top sealing assembly are opened, and the blowing nozzle blows the workpiece onto the conveying guide rail, and the process of transferring the workpiece by the blowing nozzle is simple and rapid. Only by aligning the blowing nozzle with the workpiece and applying appropriate air flow, the workpiece can be quickly and efficiently blown away or blown to the target position, which can avoid manual contact and reduce the risk of damaging the workpiece.

[0020] Optionally, the bottom film mechanism includes a pre-cutting assembly and a bottom sealing assembly, and the bottom film feeding mechanism sequentially communicates with the pre-cutting assembly and the bottom sealing assembly. The pre-cutting assembly and the bottom sealing assembly are both in sliding connection with the workbench, and the bottom sealing assembly is in communication with the conveying guide rail.

[0021] By adopting the above technical scheme, the film sealing of the bottom film feeding mechanism is transported to the pre-cutting assembly for preliminary cutting, then transported to the bottom sealing assembly, and the workpiece is transported to the inside of the bottom sealing assembly. At this time, the film sealing is located on the top of the workpiece, and the bottom sealing assembly performs film sealing operation on the top of the workpiece, thereby realizing rapid and efficient heat sealing operation on both sides of the workpiece.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The process of the top film mechanism and the process of the bottom film mechanism are synchronized to improve work efficiency. When the top film mechanism and the bottom film mechanism are stationary, the top film feeding mechanism, the bottom film feeding mechanism and the feeding mechanism are synchronized to run, thereby transporting the workpiece to the next process, greatly improving the efficiency of workpiece heat sealing, reducing the influence of manual factors and improving the yield of products.

[0024] 2. The pre-top cylinder periodically drives the pre-top knife to cut the film sealing, thereby producing a cutting mark on the film sealing and pre-cutting the film sealing. In the process of sealing the workpiece, the efficiency of separating the cover from the film sealing is improved, and the risk of the cover sticking to the film sealing is reduced.

[0025] 3. When the top film driving motor is in a stationary state, the pre-top assembly performs film cutting operation, the top sealing assembly performs heat sealing operation, and the top film feeding mechanism cooperates with the top film mechanism, thereby greatly improving the transmission, pre-cutting and heat sealing efficiency of the film sealing, reducing the error caused by manual production and improving the quality of the film sealing. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of a full-automatic double-sided film sealing device for square nozzle covers according to the present application.

[0027] Figure 2 is a schematic view of a top film mechanism according to the present application.

[0028] Figure 3 is a structural schematic view of a conveying mechanism according to the present application.

[0029] Figure 4 is a structural schematic diagram of the bottom film mechanism of the application.

[0030] Reference sign explanation: 1, workbench; 2, top film mechanism; 21, pre-ejection assembly; 211, pre-ejection cylinder; 212, cutter; 213, pre-ejection support; 22, top sealing assembly; 221, top sealing cylinder; 222, heat sealing head; 23, limiting assembly; 231, limiting cylinder; 232, limiting block; 3, bottom film mechanism; 31, pre-cutting assembly; 311, pre-cutting cylinder; 312, pre-cutting piece; 313, pre-cutting support; 32, bottom sealing assembly; 321, bottom sealing support; 322, bottom sealing cylinder; 323, melt sealing head; 4, bottom film feeding mechanism; 41, bottom film winding roller; 42, bottom film pre-tightening roller group; 421, first bottom film pre-tightening roller; 422, second bottom film pre-tightening roller; 423, third bottom film pre-tightening roller; 43, bottom film guide assembly; 431, second clamping plate; 432, second guide plate; 44, bottom film driving motor; 45, bottom film winding drum; 5, top film feeding mechanism; 51, top film winding roller; 52, top film pre-tightening roller group; 521, first top film roller; 522, second top film roller; 523, third top film roller; 53, top film guide assembly; 531, first clamping plate; 532, first guide plate; 54, top film driving motor; 55, top film winding drum; 6, feeding mechanism; 61, first feeding guide rail; 62, second feeding guide rail; 63, feeding cylinder; 7, conveying mechanism; 71, conveying guide rail; 72, first conveying cylinder; 73, second conveying cylinder; 74, sliding rail; 75, sliding block; 8, air nozzle; 101, workpiece. DETAILED DESCRIPTION

[0031] The application will be further described in detail below with reference to the accompanying drawings.

[0032] The embodiment of the application discloses a full-automatic double-sided film sealing device for square nozzle cover.

[0033] Reference Figure 1 The full-automatic double-sided film sealing device for square nozzle cover comprises a top film mechanism 2, a bottom film mechanism 3 and a workbench 1, the top film mechanism 2 and the bottom film mechanism 3 are connected to the top of the workbench 1, the top film mechanism 2 and the bottom film mechanism 3 are communicated to form a channel for the movement of a workpiece 101, the top film mechanism 2 is connected with a top film feeding mechanism 5 for delivering sealing film to the top film mechanism 2, the bottom film mechanism 3 is connected with a bottom film feeding mechanism 4 for delivering sealing film to the bottom film mechanism 3, and the workpiece 101 sequentially passes through the top film mechanism 2 and the bottom film mechanism 3 so as to seal the top and bottom of the workpiece 101 by sealing film.

[0034] The top film loading mechanism 5 comprises a top film winding roller 51, a top film pre-tightening roller group 52 and a top film guide assembly 53. The top film winding roller 51 and the top film pre-tightening roller group 52 are both connected to the side of the workbench 1 at the input end of the top film mechanism 2, and the top film guide assembly 53 is connected to the input end of the top film mechanism 2. The sealing film passes through the top film pre-tightening roller group 52 and the top film guide assembly 53 in sequence from the top film winding roller 51 into the top film mechanism 2. The top film winding roller 51 is rotationally connected to the workbench 1. The top film pre-tightening roller group 52 comprises a first top film roller 521, a second top film roller 522 and a third top film roller 523. The first top film roller 521, the second top film roller 522 and the third top film roller 523 are all rotationally connected to the top of the workbench 1. The rotation axes of the first top film roller 521, the second top film roller 522 and the third top film roller 523 are all arranged in parallel with the rotation axis of the top film winding roller 51. The sealing film is output from the top film winding roller 51, passes around the bottom of the first top film roller 521, then passes around the top of the second top film roller 522, and finally passes around the bottom of the third top film roller 523, so as to tension the sealing film before entering the top film guide assembly 53.

[0035] The workbench 1 is provided with a top film driving motor 54 and a top film winding drum 55. The rotation center of the top film winding drum 55 is fixedly connected to the output shaft of the top film driving motor 54. The output shaft of the top film driving motor 54 is arranged in parallel with the rotation axis of the top film winding roller 51. The top film driving motor 54 drives the top film winding drum 55 to rotate, so as to drive the sealing film to move and wind the waste sealing film after heat sealing.

[0036] The top film guide assembly 53 comprises a first clamping plate 531 and two first guide plates 532. The two first guide plates 532 are fixedly connected to the top of the workbench 1. One end of each first guide plate 532 points to the top film pre-tightening roller group 52, and the other end points to the top film mechanism 2. A space is left between the two guide plates for the sealing film to move. One side of the first clamping plate 531 is fixedly connected to the input end of the top film mechanism 2, and the other side abuts against the top of the workbench 1 between the two first guide plates 532, so as to tension the sealing film entering the top film mechanism 2.

[0037] Reference Figure 2The top film mechanism 2 comprises a pre-ejection assembly 21 and a top sealing assembly 22. The pre-ejection assembly 21 comprises a pre-ejection cylinder 211, a cutter 212 and a pre-ejection support 213. The pre-ejection cylinder 211 is fixedly connected to the top of the workbench 1 through the pre-ejection support 213. The pre-ejection cylinder 211 and the workbench 1 leave a space for the pre-ejection cylinder 211 to extend and retract. The piston rod of the pre-ejection cylinder 211 is arranged vertically to the top surface of the workbench 1. The cutter 212 is fixedly connected to the end of the piston rod of the pre-ejection cylinder 211. The first guide plate 532 extends partially in the pre-ejection support 213, so that the film at the pre-ejection support 213 is in a tension state for the cutter 212 to cut accurately. In this embodiment, the cutter 212 is a circular ring, which is used to cut a circular cover from the film. The circular cover is still connected to the film. In other embodiments, the cutter 212 can have a square or polygonal cross section to adapt to products of different shapes.

[0038] The top sealing assembly 22 comprises a top sealing cylinder 221 and a hot sealing head 222. The cylinder body of the top sealing cylinder 221 is fixedly connected to the inside of the workbench 1. The piston rod of the top sealing cylinder 221 is slidingly connected to the top surface of the workbench 1. The hot sealing head 222 is fixedly connected to the end of the piston rod of the top sealing cylinder 221.

[0039] The top of the workbench 1 is provided with a limiting assembly 23, which cooperates with the top sealing assembly 22 to clamp the workpiece 101. The limiting assembly 23 comprises a limiting cylinder 231 and a limiting block 232. The cylinder body of the limiting cylinder 231 is fixedly connected to the top of the workbench 1. The limiting block 232 is fixedly connected to the piston rod of the limiting cylinder 231. The piston rod of the limiting cylinder 231 extends and retracts towards the direction of the top sealing cylinder 221. The central axis of the limiting cylinder 231 is collinear with the central axis of the top sealing cylinder 221. When the workpiece 101 moves to the position between the top sealing cylinder 221 and the limiting cylinder 231, the limiting block 232 abuts against the top of the workpiece 101 to support the workpiece 101. The piston rod of the top sealing cylinder 221 drives the hot sealing head 222 to move towards the bottom of the workpiece 101. The hot sealing head 222 extrudes and heats the cut seam of the film, so that the cover is hot-melted to the bottom opening side of the workpiece 101.

[0040] The workbench 1 is provided with a feeding mechanism 6, which comprises a first feeding guide rail 61, a second feeding guide rail 62 and a feeding cylinder 63. The first feeding guide rail 61 is parallel to the first guide plate 532 and is connected to the top of the workbench 1. One end of the second feeding guide rail 62 is communicated with the second feeding guide rail 62, and the other end is communicated with the top film mechanism 2. In this embodiment, the first feeding guide rail 61 is a conveyor belt, which is used to convey the workpiece 101 to the joint of the first feeding guide rail 61 and the second feeding guide rail 62. The cylinder body of the feeding cylinder 63 is fixedly connected with the second feeding guide rail 62, and the piston rod of the feeding cylinder 63 is telescopic along the second feeding guide rail 62, so as to push the workpiece 101 at the end of the first feeding guide rail 61 to the top film mechanism 2 along the length direction of the second feeding guide rail 62 for heat sealing operation.

[0041] With reference to Figure 3 The conveying mechanism 7 is arranged between the bottom film mechanism 3 and the top film mechanism 2, and comprises a conveying guide rail 71, a first conveying cylinder 72 and a second conveying cylinder 73. One end of the conveying guide rail 71 is communicated with the top film mechanism 2, and the other end is communicated with the bottom film mechanism 3. The air nozzle 8 is fixedly connected with the conveying guide rail 71, and the opening of the air nozzle 8 is arranged towards the communication position of the conveying guide rail 71 and the top film mechanism 2, which is used to blow the workpiece 101 into the conveying guide rail 71. The conveying guide rail 71 is provided with a slide rail 74 and a sliding block 75. The slide rail 74 is fixedly connected with the top of the conveying guide rail 71 along the length direction of the conveying guide rail 71. The sliding block 75 is slidingly connected with the slide rail 74. The cylinder body of the first conveying cylinder 72 is fixedly connected with one end of the conveying guide rail 71. The piston rod of the first conveying cylinder 72 is fixedly connected with the sliding block 75. The cylinder body of the second conveying cylinder 73 is fixedly connected with the sliding block 75. The piston rod of the second conveying cylinder 73 is arranged towards the conveying guide rail 71. The central axis of the second conveying cylinder 73 is perpendicular to the central axis of the first conveying cylinder 72. The piston rod of the second conveying cylinder 73 is fixedly connected with a conveying block. The first conveying cylinder 72 and the second conveying cylinder 73 cooperate to intermittently convey the workpiece 101 in the conveying guide rail 71 to the bottom film mechanism 3, so as to realize the division of work and cooperation of film sealing, avoid repeated work, and improve the production efficiency.

[0042] With reference to Figure 1, the bottom film loading mechanism 4 includes a bottom film winding roller 41, a bottom film pre-tightening roller group 42 and a bottom film guide assembly 43, the bottom film winding roller 41 and the bottom film pre-tightening roller group 42 are both rotationally connected with the workbench 1, the second sealing film passes through the bottom film pre-tightening roller group 42 and the bottom film guide assembly 43 from the bottom film winding roller 41 into the bottom film mechanism 3, the bottom film pre-tightening roller group 42 includes a first bottom film pre-tightening roller 421, a second bottom film pre-tightening roller 422 and a third bottom film pre-tightening roller 423, the first bottom film pre-tightening roller 421, the second bottom film pre-tightening roller 422 and the third bottom film pre-tightening roller 423 are all rotationally connected with the workbench 1, the sealing film of the bottom film winding roller 41 is sequentially wound from the bottom of the first bottom film pre-tightening roller 421, the top of the second bottom film pre-tightening roller 422 and the bottom of the third bottom film pre-tightening roller 423, while pre-tightening the sealing film, the sealing film can be moved to adhere to the surface of the workbench 1, reducing the risk of sealing film wrinkles.

[0043] Referring to Figure 4 , the workbench 1 is provided with a bottom film driving motor 44 and a bottom film winding drum 45, the rotation center of the bottom film winding drum 45 is fixedly connected with the output shaft of the bottom film driving motor 44, the output shaft of the bottom film driving motor 44 is arranged in parallel with the rotation shaft of the bottom film winding roller 41, the bottom film driving motor 44 drives the bottom film winding drum 45 to rotate to drive the sealing film to move, and winds the waste sealing film after heat sealing.

[0044] The bottom film guide assembly 43 includes a second clamping plate 431 and two second guide plates 432, the two second guide plates 432 are fixedly connected with the top of the workbench 1 and constitute a channel for limiting the passage of the sealing film, one end of the second guide plate 432 is connected with the bottom film pre-tightening roller group 42, and the other end is connected with the bottom film mechanism 3. One side of the second clamping plate 431 is fixedly connected with the bottom film mechanism 3, and the other side is abutted with the workbench 1 between the two second guide plates 432, further limiting the sealing film.

[0045] The bottom film mechanism 3 includes a pre-cut assembly 31 and a bottom sealing assembly 32, the pre-cut assembly 31 includes a pre-cut cylinder 311, a pre-cut piece 312 and a pre-cut support 313, the pre-cut support 313 is fixedly connected to one end of the second guide plate 432 away from the third pre-tightening roller, the cylinder body of the pre-cut cylinder 311 is fixedly connected to the pre-cut support 313, the piston rod of the pre-cut cylinder 311 is arranged vertically on the top of the workbench 1, the pre-cut piece 312 is fixedly connected to the end face of the piston rod of the pre-cut cylinder 311,

[0046] The bottom sealing assembly 32 includes a bottom sealing support 321, a bottom sealing cylinder 322 and a sealing head 323, the bottom sealing support 321 is fixedly connected to the workbench 1, the cylinder body of the bottom sealing cylinder 322 is fixedly connected to the bottom sealing support 321, the piston rod of the bottom sealing cylinder 322 is telescopic towards the workbench 1, the sealing head 323 is fixedly connected to the end of the piston rod, used for heat sealing operation on the top of the workpiece 101.

[0047] The implementation principle of embodiment 1 is that the institutions of the present application cooperate to realize two automatic processing procedures,

[0048] Procedure one: when the top film mechanism 2 and the bottom film mechanism 3 are in the open state, the top film driving motor 54 drives a sealing film to move along the path of the pre-top assembly 21 and the limiting assembly 23, so that the pre-cut sealing film moves to the limiting assembly 23 for bottom surface opening heat sealing of the workpiece 101, and the waste sealing film after heat sealing continues to move forward to be wound into the top film reel 55. At the same time, the air nozzle 8 blows the workpiece 101 after bottom surface heat sealing to the conveying guide rail 71, and the first conveying air cylinder 72 cooperates with the second conveying air cylinder 73 to push the workpiece 101 between the bottom sealing assembly 32 and the workbench 1. The other sealing film is driven to move by the bottom film driving motor 44, and the sealing film moves along the path of the pre-cut assembly 31 and the bottom sealing assembly 32, so that the sealing film after preliminary pre-cutting moves between the bottom sealing assembly 32 and the workpiece 101 for subsequent top surface heat sealing of the workpiece 101.

[0049] Procedure two: when the top film driving motor 54 and the bottom film driving motor 44 are stationary, in the top film mechanism 2, the limiting cylinder 231 drives the limiting block 232 to abut against the top surface of the workpiece 101 to be heat sealed, and the top sealing cylinder 221 drives the heat sealing head 222 to extrude the sealing film and the workpiece 101, so that the bottom opening of the workpiece 101 forms a cover, and the bottom heat sealing of the workpiece 101 is completed. In the bottom film mechanism 3, the bottom sealing cylinder 322 drives the melt sealing head 323 to extrude the other sealing film and the workpiece 101 after bottom surface heat sealing, so that the top opening of the workpiece 101 forms a cover, thereby completing the heat sealing work of the openings on both sides of the workpiece 101.

[0050] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A fully automatic double-sided sealing device for square caps, characterized in that: The utility model provides a workbench (1), top film mechanism (2), bottom film mechanism (3) and feeding mechanism (6), the feeding mechanism (6), top film mechanism (2) and bottom film mechanism (3) sequentially communicate and constitute the passageway for workpiece (101) movement, the workbench (1) is equipped with top film feeding mechanism (5) and bottom film feeding mechanism (4) still, top film feeding mechanism (5) and bottom film feeding mechanism (4) are all rotationally connected with workbench (1), top film feeding mechanism (5) is communicated with top film mechanism (2), bottom film feeding mechanism (4) is communicated with bottom film mechanism (3), top film mechanism (2) includes top seal subassembly (22) and limiting component (23), top seal subassembly (22) and limiting component (23) are oppositely arranged and are connected in the sliding way in workbench (1), for the bottom of workpiece (101) is sealed, the central axis of top film mechanism (2) is parallel with the central axis of bottom film mechanism (3), bottom film mechanism (3) is connected in the sliding way with workbench (1), for the top of workpiece (101) is sealed, The limiting component (23) includes a limiting cylinder (231) and a limiting block (232), the limiting cylinder (231) is connected to the top of the workbench (1), the limiting block (232) is connected to the piston rod of the limiting cylinder (231), the top seal subassembly (22) includes a top seal cylinder (221) and a heat seal head (222), the top seal subassembly (22) is connected to the inside of the workbench (1), the heat seal head (222) is connected to the piston rod of the top seal cylinder (221), the piston rod of the limiting cylinder (231) and the piston rod of the top seal subassembly (22) are oppositely arranged; The top film mechanism (2) further includes a pre-top assembly (21), which is connected to the workbench (1) between the top film feeding mechanism (5) and the limiting component (23), the pre-top assembly (21) includes a pre-top cylinder (211) and a pre-top knife, the pre-top cylinder (211) is connected to the workbench (1), the piston rod of the pre-top cylinder (211) is arranged towards the workbench (1) and connected with the pre-top knife; The workbench (1) is provided with a conveying mechanism (7), the conveying mechanism (7) includes a conveying guide rail (71), a first conveying cylinder (72) and a second conveying cylinder (73), one end of the conveying guide rail (71) is communicated with the top sealing mechanism, the other end is communicated with the bottom film mechanism (3), the first conveying cylinder (72) is connected with the conveying guide rail (71) in parallel, the second conveying cylinder (73) is connected with the piston rod of the first conveying cylinder (72) in perpendicular; The top film mechanism (2) is connected with an air nozzle (8), the opening of the air nozzle (8) is arranged towards the conveying guide rail (71) close to the side of the top film mechanism (2). The bottom film mechanism (3) comprises a pre-cut assembly (31) and a bottom sealing assembly (32), the bottom film feeding mechanism (4) is sequentially communicated with the pre-cut assembly (31) and the bottom sealing assembly (32), the pre-cut assembly (31) and the bottom sealing assembly (32) are slidably connected with the workbench (1), and the bottom sealing assembly (32) is communicated with the conveying guide rail (71).

2. The full-automatic double-sided film sealing device for square-shaped cap according to claim 1, characterized in that: The top film feeding mechanism (5) comprises a top film winding roller (51) and a top film guiding assembly (53), the top film winding roller (51) is rotatably connected with the workbench (1), the top film guiding assembly (53) comprises a first clamping plate (531) and a plurality of first guiding plates (532), the plurality of first guiding plates (532) are connected on the workbench (1) between the top film winding roller (51) and the top film mechanism (2) to form a channel for the sealing film to move, the first clamping plate (531) is abutted with the workbench (1) in the channel, the workbench (1) is provided with a top film driving motor (54) and a top film winding drum (55), the output shaft of the top film driving motor (54) is connected with the top film winding drum (55) and is used for driving the sealing film to move.

3. The full-automatic double-sided film sealing device for square-shaped cap according to claim 1, characterized in that: The feeding mechanism (6) comprises a first feeding guide rail (61), a second feeding guide rail (62) and a feeding cylinder (63), the first feeding guide rail (61) is vertically arranged and communicated with the second feeding guide rail (62), the feeding cylinder (63) is connected to one end of the second feeding guide rail (62), the other end of the second feeding guide rail (62) is communicated with the top film mechanism (2), and the piston rod of the feeding cylinder (63) is telescopic along the length direction of the second feeding guide rail (62).

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