Edge sealing machine for packaging

By designing a packaging edge sealing machine, the problem of trimming excess edges after sealing is solved by using the combination of upper and lower electric heating edge sealing molds and cutting blades, achieving a firm, beautiful, and efficient sealing.

CN224045642UActive Publication Date: 2026-03-27GUANGDONG FUYING BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing sealing machines cannot effectively trim excess edges after sealing, resulting in unsightly packaging bags and weak seals.

Method used

A packaging edge sealing machine was designed, equipped with upper and lower electric heating edge sealing molds and a cutting knife. Through the coordinated action of a pressing cylinder, a telescopic cylinder and a lifting cylinder, the machine achieves edge sealing, cutting and heat shrinking, ensuring a firm seal and removal of excess edges.

Benefits of technology

It achieves both strong and aesthetically pleasing sealing, precise cutting, reduced excess length, improved sealing efficiency, and enhanced automation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224045642U_ABST
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Abstract

The utility model discloses an edge sealing machine for packaging, and relates to the technical field of sealing machines, the edge sealing machine for packaging comprises a sealing assembly, the sealing assembly is provided with two side frame plates fixed on a case body, and the upper ends of the two side frame plates are also connected with a fixed plate; a pressing cylinder is fixed in the middle of the top of the fixed plate; the lower end of the pressing cylinder is connected with an upper electric heating edge sealing die, and a lower electric heating edge sealing die is correspondingly arranged below the upper electric heating edge sealing die; a fixing frame is connected between the two side frame plates through bolts. A telescopic air cylinder is connected to the upper portion of the fixing frame, a mechanical clamping hand is fixed to the end of a cylinder rod of the telescopic air cylinder, and a cutting knife is installed on the mechanical clamping hand in a matched mode. According to the utility model, after the packaging is finished, the cylinder rod of the telescopic cylinder extends out, so that the cutting knife arranged on the mechanical clamping hand is arranged at the redundant edge of the packaging bag, then the mechanical clamping hand acts, and the redundant edge is cut by utilizing the cutting knife, so that the redundant edge of the packaging bag is removed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing machine technical field, specifically a kind of edge sealing machine for packing. BACKGROUND

[0002] The edge of plastic bag is sealed, so that plastic bag forms a closed space, which protects the contents, prevents moisture, pollution and leakage, and maintains the freshness and integrity of the contents.

[0003] Chinese patent publication No. CN203427366U discloses an explosion-proof sealing machine, which comprises a rack, a working panel is arranged at the upper end of the rack, an edge sealing electric heating wire for sealing the edge of a plastic film and a reinforcing electric heating wire for preventing the edge of the plastic film from breaking are arranged on the working panel, and the reinforcing electric heating wire is arranged on one side of the edge sealing electric heating wire.

[0004] The edge sealing machine in the above patent can only seal the edge of a plastic bag, and cannot cut the excess edge when the excess edge is long, so that the packaging bag has a large amount of excess edge, which is very unsightly. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an edge sealing machine for packing, which can cut the excess edge when sealing the edge of a packaging bag, reduce the length of the excess edge, and ensure the appearance of the packaging bag.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] An edge sealing machine for packing comprises a sealing assembly, the sealing assembly has two side frame plates fixed on a cabinet body, a fixed plate is further connected to the upper ends of the two side frame plates, a pressing cylinder is fixed to the middle of the top of the fixed plate, a lower electric heating edge sealing die is arranged below an upper electric heating edge sealing die connected to the lower end of the pressing cylinder,

[0008] A fixed frame is further connected between the two side frame plates by bolts, an extension cylinder is connected to the upper side of the fixed frame, a mechanical gripper is fixed to the end of the cylinder rod of the extension cylinder, and a cutting knife is installed on the mechanical gripper.

[0009] According to a further technical scheme of the utility model, the upper electric heating edge sealing die is snap-fitted in a die holder, and the side of the die holder is locked and fixed with the upper electric heating edge sealing die by bolts; the die holder is further fixed with the cylinder rod of the pressing cylinder.

[0010] The upper part of the two ends of the die holder is further provided with a guide rod, and the guide rod is slidably connected with the fixing plate.

[0011] As a further technical scheme of the utility model, the lower electric heat sealing edge die is clamped at the two ends in the mounting seat and is fixed through bolts; one lifting cylinder is mounted at the bottom of each mounting seat; and the lifting cylinder is fixed at the top side inside the machine box body.

[0012] As a further technical scheme of the utility model, the machine box body is further fixed with a belt conveyor, and a mounting slide rod is further fixed at the side of the belt conveyor away from the sealing assembly; an infrared sensor is slidably connected on the mounting slide rod and is positioned through bolt locking.

[0013] As a further technical scheme of the utility model, the upper part of the machine box body is further provided with a waste discharge groove between the two side frame plates.

[0014] As a further technical scheme of the utility model, the side of the machine box body is further provided with a chain conveyor, and the top of the chain conveyor is further fixed with a heating air bellow.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. After the packaging is completed, the cylinder rod of the telescopic cylinder is extended, so that the cutting knife mounted on the mechanical clamp hand is placed at the edge of the excess packaging bag, and then the mechanical clamp hand acts to cut the excess edge by using the cutting knife, so that the excess edge of the packaging bag is removed, the neatness of the packaging bag port is ensured, the length of the excess edge is reduced, and the whole packaging is more beautiful.

[0017] 3. When the packaging bag is sealed, the lifting cylinder drives the mounting seat to rise, ensures that the lower electric heat sealing edge die and the upper electric heat sealing edge die are accurately connected, enhances the sealing firmness, ensures that the height of the lower electric heat sealing edge die and the upper electric heat sealing edge die when closed is consistent with the height of the cutting knife when closed, and ensures that the cutting is accurate.

[0018] 3. The chain conveyor transmits the packaged product, the heating air bellow rapidly provides uniform hot air, the film is heat-shrunk, the film is tightly attached to the surface of the product, and the packaging beauty and protection are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic view of the utility model.

[0020] Figure 2 is another perspective view of the utility model. Figure 1

[0021] ​Figure 3 is a schematic view of the rear side structure in the utility model Figure 1 .

[0022] Figure 4 is a front view of the utility model Figure 1 .

[0023] Figure 5 is an A-A sectional view of the utility model Figure 4 .

[0024] Figure 6 is a partial enlarged schematic view of the utility model Figure 1 .

[0025] Figure 7 is a partial enlarged schematic view of the utility model Figure 3 .

[0026] Figure 8 is a partial enlarged schematic view of the utility model Figure 5 .

[0027] In the drawing: 1 - machine box body, 2 - belt conveyor, 3 - sealing assembly, 4 - installation slide rod, 5 - infrared sensor, 6 - chain conveyor, 7 - heating air bellow, 8 - waste groove;

[0028] 31 - side frame plate, 32 - fixed plate, 33 - pressing cylinder, 34 - upper electric heat sealing edge mould, 35 - lower electric heat sealing edge mould, 36 - mounting seat, 37 - lifting cylinder, 38 - telescopic cylinder, 39 - mechanical gripper, 310 - cutting knife, 311 - fixed frame, 312 - guide rod, 313 - mould base. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0030] Please refer to Figures 1-8 , in the embodiments of the utility model, a sealing machine for edge sealing of packaging, including sealing assembly 3, the sealing assembly 3 has two fixed side frame plates 31 on the machine box body 1, and the fixed plate 32 is further connected on the upper end of the two side frame plates 31;Then the pressing cylinder 33 is fixed in the middle position on the top of the fixed plate 32;The lower end of the pressing cylinder 33 is connected with the upper electric heat sealing edge mould 34, and the lower electric heat sealing edge mould 35 is correspondingly arranged below the upper electric heat sealing edge mould 34;

[0031] The two side frame plates 31 are also connected by a fixing frame 311 through bolts; the fixing frame 311 is connected with an extension cylinder 38 above, the cylinder rod end of the extension cylinder 38 is fixed with a mechanical gripper 39, and the mechanical gripper 39 is matched with a cutting knife 310.

[0032] By adopting the above technical scheme, when the packaging bag is packaged, the mouth of the packaging bag is placed between the upper electric heat sealing edge mold 34 and the lower electric heat sealing edge mold 35; the cylinder rod of the compression cylinder 33 is extended, so that the upper electric heat sealing edge mold 34 and the lower electric heat sealing edge mold 35 are closed, so as to realize the packaging of the mouth of the packaging bag.

[0033] After the packaging is completed, the cylinder rod of the extension cylinder 38 is extended, so that the cutting knife 310 installed on the mechanical gripper 39 is placed at the excess edge of the packaging bag, and then the mechanical gripper 39 acts to cut the excess edge by the cutting knife 310, so as to realize the removal of the excess edge of the packaging bag.

[0034] In the embodiment, the upper electric heat sealing edge mold 34 is clamped and installed in the mold seat 313, and the side of the mold seat 313 is locked and fixed with the upper electric heat sealing edge mold 34 through bolts; the mold seat is also fixed with the cylinder rod of the compression cylinder 33;

[0035] The upper part of both ends of the mold seat 313 is also provided with a guide rod 312, and the guide rod 312 is slidingly connected with the fixed plate 32.

[0036] By adopting the above technical scheme, the setting of the guide rod 312 can ensure the stable movement of the mold seat 313 under the action of the compression cylinder 33, ensure the accurate alignment of the sealing edge mold 34, and improve the packaging quality; at the same time, the sliding connection design of the guide rod 312 effectively reduces the friction, prolongs the service life of the equipment, and optimizes the overall work efficiency.

[0037] In addition, the mold seat 313 is installed with the upper electric heat sealing edge mold 34 in a concave-convex sliding structure, and is locked and fixed by bolts; when the sealing width of the packaging bag is required; this can realize the quick replacement of the upper electric heat sealing edge mold 34, and ensure the flexible adaptation of different specifications of packaging bags.

[0038] In the embodiment, the lower electric heat sealing edge mold 35 is clamped at both ends in the mounting seat 36 and is fixed by bolts; one lifting cylinder 37 is matched and installed at the bottom of each mounting seat 36; the lifting cylinder 37 is fixed at the top side inside the machine box body 1.

[0039] By adopting the technical scheme, when the packaging bag is sealed, the lifting cylinder 37 drives the mounting seat 36 to ascend, the lower electric heat sealing edge die 35 is accurately butted with the upper electric heat sealing edge die 34, and the sealing firmness is enhanced; meanwhile, the height of the lower electric heat sealing edge die 35 when being closed with the upper electric heat sealing edge die 34 is consistent with the height of the cutting knife 310 when being closed, the cutting is accurate, the packaging quality problem caused by the asynchronous sealing and cutting is avoided, and the overall packaging efficiency is improved.

[0040] In the embodiment, the belt conveyor 2 is further fixed on the case body 1, and the installation slide rod 4 is further fixed on the side of the belt conveyor 2 away from the sealing assembly 3; the infrared sensor 5 is slidably connected to the installation slide rod 4 and is positioned by a bolt.

[0041] Specifically, the industrial computer (not shown) is further arranged on the outside of the case body 1, the industrial computer is connected with the infrared sensor 5 through a data line, the position of the packaging bag is monitored in real time, the sealing and cutting time is accurately controlled, each link is seamlessly connected, and the stability and efficiency of the automatic packaging system are further improved.

[0042] The industrial computer can be, but is not limited to, a TJ-150TC04 type industrial computer; the electromagnetic valves on the pressing cylinder 33, the telescopic cylinder 38, the mechanical gripper 39 and the lifting cylinder 37 can be controlled through the industrial computer, so that the action control is realized; the pneumatic control principle is prior art, and thus will not be described here.

[0043] In the embodiment, the case body 1 is further provided with a waste discharge groove 8 located between the two side frame plates 31.

[0044] By adopting the technical scheme, the waste discharge groove 8 effectively collects the waste generated in the cutting process, and then discharges the waste from one side of the case body 1, so that the waste is collected and recycled.

[0045] In the embodiment, the case body 1 is further provided with a chain conveyor 6, and the heating air box 7 is further fixed on the top of the chain conveyor 6. The heating air box 7 has at least one fan inside, and a heating pipe is arranged below the fan.

[0046] By adopting the technical scheme, in some special packaging requirements, for example, the film on the outside of the boxed seasoning, the chain conveyor 6 transmits the packaged product, and the heating air box 7 rapidly provides uniform hot air, so that the film is heat-shrunk; the film is tightly attached to the surface of the product, the packaging appearance and protection are improved. The fan rotating speed and the heating pipe temperature of the heating air box 7 can be adjusted through the industrial computer, the hot air effect is best, the heat-shrinking requirement of different material films is met, and the packaging effect is further optimized.

[0047] The working principle of this utility model is as follows: when sealing the packaging bag, the opening of the packaging bag is placed between the upper electric heating sealing mold 34 and the lower electric heating sealing mold 35; the cylinder rod of the pressing cylinder 33 extends, so that the electric heating sealing mold 34 and the lower electric heating sealing mold 35 are closed, thereby achieving the sealing of the opening of the packaging bag.

[0048] After the packaging is completed, the cylinder rod of the telescopic cylinder 38 extends, so that the cutting blade 310 mounted on the mechanical gripper 39 is placed at the excess edge of the packaging bag. Then the mechanical gripper 39 moves and uses the cutting blade 310 to cut the excess edge, thereby removing the excess edge of the packaging bag.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A side-seal packaging machine characterized by: The sealing assembly (3) is provided with two side frame plates (31) fixed on the cabinet body (1), and a fixed plate (32) is further connected to the upper ends of the two side frame plates (31); a pressing cylinder (33) is fixed to the middle position of the top of the fixed plate (32); the lower end of the pressing cylinder (33) is connected with an upper electric heat sealing edge die (34), and a lower electric heat sealing edge die (35) is correspondingly arranged below the upper electric heat sealing edge die (34); The two side frame plates (31) are further connected with a fixed frame (311) through bolts; the fixed frame (311) is connected with an extension cylinder (38) above, and the cylinder rod end of the extension cylinder (38) is fixed with a mechanical gripper (39), and the mechanical gripper (39) is further connected with a cutting knife (310).

2. The machine for sealing the edges of packages according to claim 1, characterized in that: The upper electric heat sealing edge die (34) is clamped and installed in the die seat (313), and the side edge of the die seat (313) is locked and fixed with the upper electric heat sealing edge die (34) through bolts; the die seat is further fixed with the cylinder rod of the pressing cylinder (33); The upper part of the two ends of the die seat (313) is further provided with a guide rod (312), and the guide rod (312) is slidably connected with the fixed plate (32).

3. The machine for sealing the edges of packages according to claim 1, characterized in that: The lower electric heat sealing edge die (35) is clamped in the mounting seat (36) at both ends and is fixed through bolts; one lifting cylinder (37) is further mounted at the bottom of each mounting seat (36); the lifting cylinder (37) is fixed to the top side inside the cabinet body (1).

4. The machine of claim 1 wherein: The cabinet body (1) is further provided with a belt conveyor (2), and an installation slide rod (4) is further fixed to the side of the belt conveyor (2) away from the sealing assembly (3); the installation slide rod (4) is slidably connected with an infrared sensor (5) and is locked and positioned through bolts.

5. The machine according to claim 4, characterized in that: The upper part of the cabinet body (1) is further provided with a waste discharge groove (8), and the waste discharge groove (8) is located between the two side frame plates (31).

6. The machine for sealing the edges of packages according to claim 5, characterized in that: The side of the cabinet body (1) is further provided with a chain conveyor (6), and the top of the chain conveyor (6) is further fixed with a heating air bellow (7).

Citation Information

Patent Citations

  • Anti-explosion sealing machine

    CN203427366U