A vertical sealing and cutting machine with a sealing knife assembly

By using a vertical lifting design for the sealing blade assembly, the problems of complex parts and inconsistent angles in the sealing and cutting machine are solved, achieving efficient film cutting and stable working efficiency.

CN120517672BActive Publication Date: 2026-02-06WENZHOU HUABANG PACKAGING MASCH CO LTD
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Patent Information

Application Number
CN202511014054.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2026-02-06
Estimated Expiration
2045-07-23

AI Technical Summary

Technical Problem

Existing sealing and cutting machines have complex parts, and the L-shaped sealing and cutting components open at inconsistent angles during operation, affecting the film cutting quality and machine efficiency.

Method used

The sealing and cutting assembly adopts a vertical lifting design. Through the drive component and adjustable height support frame, the upper and lower sealing and cutting parts of the L-shaped sealing and cutting assembly can move vertically at equal distances along the guide rod, thus realizing the vertical lifting and lowering of the sealing and cutting assembly.

Benefits of technology

This improved the working efficiency of the sealing and cutting machine, reduced the defect rate, and ensured the consistency of film cutting quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120517672B_ABST
Patent Text Reader

Abstract

A kind of sealing cutter assembly vertical lifting sealing cutter, first connecting rod and second connecting rod are equipped with above discharge conveyor belt assembly, first connecting rod is located at the front end of discharge conveyor belt assembly, close to film feeding assembly, one end of first connecting rod and second connecting rod is connected with side frame, both ends of first connecting rod are equipped with guide rod, the other end of second connecting rod is equipped with guide rod, L-shaped sealing cutting assembly includes upper L-shaped sealing cutting part and lower L-shaped sealing cutting part, the outside of upper L-shaped sealing cutting part and the outside of lower L-shaped sealing cutting part are equipped with the guide sleeve corresponding to three guide rods, guide sleeve is sleeved on the corresponding guide rod, upper L-shaped sealing cutting part and lower L-shaped sealing cutting part are equipped with drive assembly for driving the work of upper L-shaped sealing cutting part and lower L-shaped sealing cutting part.It is characterized in that: upper L-shaped sealing cutting part and lower L-shaped sealing cutting part are pressed to move vertically up and down along equidistant guide rod.
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Description

Technical Field

[0001] This invention relates to the field of sealing and cutting machines, and in particular to a sealing and cutting machine with a vertically lifting sealing knife assembly. Background Technology

[0002] Sealing and cutting machines are fully automatic, unmanned packaging machines widely used in mass production packaging assembly lines. They are highly efficient, automatically feeding and punching film, automatically sealing and cutting film, and automatically rolling up waste material. Only the film guiding system and the feeding conveyor platform need to be manually adjusted. They are suitable for products of different widths and heights and can be used in conjunction with automated packaging lines. They are the first choice for sealing and cutting heat shrink packaging of products.

[0003] Existing sealing and cutting machines have complex parts, and the L-shaped sealing and cutting components open at inconsistent angles during operation, affecting the cutting of films and the overall operation of the machine. Summary of the Invention

[0004] The purpose of this invention is to solve the existing technical problems by proposing a sealing and cutting machine with a vertical lifting sealing knife assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sealing and cutting machine with a vertically lifting sealing blade assembly, comprising a frame, a film feeding assembly, an infeed conveyor belt assembly, a film support bracket, an L-shaped sealing and cutting assembly, an outfeed conveyor belt assembly, and a waste recycling assembly. The outfeed conveyor belt assembly and the infeed conveyor belt assembly are arranged front and rear on the frame. The L-shaped sealing and cutting assembly is mounted on the frame. A film feeding assembly is mounted on one side frame of the infeed conveyor belt assembly, through which the film roll passes. A film support bracket is mounted on the infeed conveyor belt assembly, and the folded film is fitted onto the film support bracket. A film conveying device is mounted on the other side of the outfeed conveyor belt assembly, and a waste recycling assembly is located below the film conveying device. An openable cover for housing the L-shaped sealing and cutting assembly is provided on the side frame on one side of the assembly. A first connecting rod and a second connecting rod are provided above the discharge conveyor belt assembly. The first connecting rod is located at the front end of the discharge conveyor belt assembly, close to the film feeding assembly. One end of the first connecting rod and the second connecting rod are connected to the side frame. Guide rods are provided at both ends of the first connecting rod, and a guide rod is provided at the other end of the second connecting rod. The L-shaped sealing and cutting assembly includes an upper L-shaped sealing and cutting part and a lower L-shaped sealing and cutting part. Guide sleeves corresponding to the three guide rods are provided on the outer side of the upper L-shaped sealing and cutting part and the outer side of the lower L-shaped sealing and cutting part. The guide sleeves are fitted over the corresponding guide rods. A drive assembly for driving the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part is provided on the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part.

[0006] Furthermore, the drive assembly includes a first drive assembly, a second drive assembly, a third drive assembly, a base, a first rotating shaft, a second rotating shaft, a drive shaft, a drive cylinder, a first drive arm, and a second drive arm. The base is located at the lower end of the feeding conveyor assembly and has a drive cylinder. The base is located at the longitudinal portion of the upper L-shaped sealing section and the lower L-shaped sealing section, and the base is located at the transverse end of the upper L-shaped sealing section and the lower L-shaped sealing section, with a first drive assembly on one side of the first rotating shaft. The second drive assembly and the third drive assembly are located on both sides of the second rotating shaft. The components include a first drive assembly, a second drive assembly, and a third drive assembly that drive the upper L-shaped sealing and cutting section and the lower L-shaped sealing and cutting section to work. The middle of the first rotating shaft is connected to one end of two first drive arms, and the middle of the second rotating shaft is connected to one end of two second drive arms. A first connecting shaft is provided between the other ends of the two first drive arms, and one end of the drive shaft is rotatably connected to the first connecting shaft. A second connecting shaft is provided between the other ends of the two second drive arms, and the other end of the drive shaft is rotatably connected to the second connecting shaft. The output shaft of the drive cylinder is rotatably connected to the second connecting shaft, and the drive cylinder drives the first rotating shaft and the second rotating shaft to work.

[0007] Furthermore, the first drive assembly, the second drive assembly, and the third drive assembly all include a rotating arm, a long rod, and a short rod. The rotating arm has a connecting hole in the middle. One side of the rotating arm is rotatably connected to one end of the long rod, and the other end of the long rod is rotatably connected to the upper L-shaped sealing and cutting part. The other side of the rotating arm is rotatably connected to one end of the short rod, and the other end of the short rod is rotatably connected to the lower L-shaped sealing and cutting part.

[0008] Furthermore, an adjustable height support frame is provided at the lower end of the base.

[0009] Furthermore, the adjustable height support frame includes a rotary motor, gears, chains, support shafts, and support shaft seats. The lower end of the support shaft is provided with a rotatable support shaft seat, and the upper end of the support shaft is provided with threads. The upper end of the support shaft is threaded to the front, rear, left, and right sides of the base. The support shaft is provided with gears, and the gears of the four support shafts are connected by chains. Any support shaft is provided with a first gear, and the first gear is connected to the second gear chain on the rotating shaft of the rotary motor.

[0010] Furthermore, an adjustable height support frame is mounted on the frame base.

[0011] Furthermore, the first and second rotating axes rotate in opposite directions.

[0012] Furthermore, the connecting hole of the rotating lever arm is connected to one side of the corresponding first rotating shaft and second rotating shaft.

[0013] The beneficial effects of this invention are: the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part press against each other and move vertically up and down at equal intervals along the guide rod, which does not affect the operation of the equipment, improves work efficiency, and reduces the defect rate. Attached Figure Description

[0014] Figure 1 For structural illustration Figure 1 .

[0015] Figure 2 For structural illustration Figure 2 .

[0016] Figure 3 Schematic diagram of L-shaped sealing and cutting assembly structure Figure 1 .

[0017] Figure 4 Schematic diagram of L-shaped sealing and cutting assembly structure Figure 2 .

[0018] Figure 5 Schematic diagram of L-shaped sealing and cutting assembly structure Figure 3 .

[0019] 1 represents the rack;

[0020] 2 is a film feeding assembly;

[0021] 3 is the feed conveyor belt assembly;

[0022] 4 is an adjustable height support frame; 41 is a rotary motor; 42 is a gear; 43 is a chain; 44 is a support shaft; 45 is a support shaft seat; 46 is the first gear;

[0023] 5 is an L-shaped sealing and cutting assembly; 51 is the upper L-shaped sealing and cutting part; 52 is the lower L-shaped sealing and cutting part;

[0024] 6 represents the discharge conveyor belt assembly;

[0025] 7 is the drive assembly; 70 is the first drive assembly; 71 is the second drive assembly; 72 is the third drive assembly; 73 is the base; 74 is the first rotating shaft; 75 is the second rotating shaft; 76 is the drive shaft; 77 is the drive cylinder; 78 is the first drive arm; 79 is the second drive arm; 701 is the rotating arm; 702 is the long rod; 703 is the short rod.

[0026] 8 represents the side frame;

[0027] 9 represents the film conveying device;

[0028] 10 is an openable top cover; 11 is the first connecting rod; 12 is the second connecting rod; 13 is a guide rod; 14 is a guide sleeve; 15 is a waste recycling component; 16 is a frame base; 17 is a membrane support bracket. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Example 1 combined with appendix Figure 1-5 A sealing and cutting machine with a vertical lifting sealing blade assembly includes a frame 1, a film feeding assembly 2, a feeding conveyor belt assembly 3, a film support bracket 17, an L-shaped sealing and cutting assembly 5, a discharge conveyor belt assembly 6, and a waste recycling assembly 15. The discharge conveyor belt assembly 6 and the feeding conveyor belt assembly 3 are arranged front and rear on the frame. The L-shaped sealing and cutting assembly 5 is mounted on the frame. The film feeding assembly 2 is mounted on a side frame 8 on one side of the feeding conveyor belt assembly, through which the film roll passes. The film support bracket 4 is mounted on the feeding conveyor belt assembly 3, and the folded film is fitted onto the film support bracket 17. A film conveying device 9 is mounted on the other side of the discharge conveyor belt assembly 6, and the waste recycling assembly 15 is located below the film conveying device. The side frame 8 on one side of the discharge conveyor belt assembly... The upper part is provided with an openable cover 10 for covering the L-shaped sealing and cutting assembly; a first connecting rod 11 and a second connecting rod 12 are provided above the discharge conveyor belt assembly. The first connecting rod is located at the front end of the discharge conveyor belt assembly, close to the film feeding assembly. One end of the first connecting rod and the second connecting rod are connected to the side frame. Guide rods 13 are provided at both ends of the first connecting rod, and a guide rod is provided at the other end of the second connecting rod. The L-shaped sealing and cutting assembly 5 includes an upper L-shaped sealing and cutting part 51 and a lower L-shaped sealing and cutting part 52. Guide sleeves 14 corresponding to the three guide rods are provided on the outer side of the upper L-shaped sealing and cutting part and the outer side of the lower L-shaped sealing and cutting part. The guide sleeves are sleeved on the corresponding guide rods. The upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part are provided with driving assemblies 7 for driving the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part to work.

[0031] A sealing and cutting machine with a vertical lifting sealing knife assembly, wherein the lower ends of the guide rods at both ends of the first connecting rod pass through the base and are mounted on the frame base 16.

[0032] A sealing and cutting machine with a vertically lifting sealing blade assembly, wherein the lower end of the guide rod of the second connecting rod is set on the frame 1.

[0033] A sealing and cutting machine with a vertically lifting sealing blade assembly, wherein the frame 1 is mounted on the frame base 16.

[0034] A sealing and cutting machine with a vertically lifting sealing blade assembly includes a drive assembly 7 comprising a first drive assembly 70, a second drive assembly 71, a third drive assembly 72, a base 73, a first rotating shaft 74, a second rotating shaft 75, a drive shaft 76, a drive cylinder 77, a first drive arm 78, and a second drive arm 79. The base 73 is located at the lower end of the feeding conveyor belt assembly 3 and is equipped with the drive cylinder 77. The second rotating shaft 75 is located at the longitudinal portion of the upper and lower L-shaped sealing and cutting sections on the base 73. The first rotating shaft 74 is located at the transverse end of the upper and lower L-shaped sealing and cutting sections on the base 73. The first drive assembly 70 is located on one side of the first rotating shaft 74. The second rotating shaft 76... 5. A second drive assembly 71 and a third drive assembly 72 are provided on both sides. The first drive assembly, the second drive assembly and the third drive assembly drive the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part to work. The middle of the first rotating shaft is connected to one end of two first drive arms 78, and the middle of the second rotating shaft is connected to one end of two second drive arms 79. A first connecting shaft is provided between the other ends of the two first drive arms. One end of the drive shaft 76 is rotatably connected to the first connecting shaft. A second connecting shaft is provided between the other ends of the two second drive arms. The other end of the drive shaft 76 is rotatably connected to the second connecting shaft. The output shaft of the drive cylinder 77 is rotatably connected to the second connecting shaft. The drive cylinder drives the first rotating shaft and the second rotating shaft to work.

[0035] A sealing and cutting machine with a vertical lifting sealing blade assembly includes a first drive assembly, a second drive assembly, and a third drive assembly, each comprising a rotating arm 701, a long rod 702, and a short rod 703. The rotating arm has a connecting hole in the middle. One side of the rotating arm is rotatably connected to one end of the long rod, and the other end of the long rod is rotatably connected to the upper L-shaped sealing and cutting part. The other side of the rotating arm is rotatably connected to one end of the short rod, and the other end of the short rod is rotatably connected to the lower L-shaped sealing and cutting part.

[0036] A sealing and cutting machine with a vertically lifting sealing blade assembly has an adjustable height support frame 4 at the lower end of the base.

[0037] A sealing and cutting machine with a vertical lifting sealing knife assembly includes an adjustable height support frame 4 comprising a rotary motor 41, a gear 42, a chain 43, a support shaft 44, and a support shaft seat 45. The lower end of the support shaft is provided with a rotatable support shaft seat, and the upper end of the support shaft is provided with a thread. The base is threaded to the upper end of the support shaft at the front, back, left, and right sides, respectively. The support shaft is provided with a gear, and the gears of the four support shafts are connected by a chain. Any support shaft is provided with a first gear 46, which is connected to a second gear chain on the rotating shaft of the rotary motor.

[0038] A sealing and cutting machine with a vertically lifting sealing blade assembly, wherein an adjustable height support frame is mounted on the machine frame base.

[0039] A sealing and cutting machine with a vertically lifting sealing blade assembly, wherein the first rotating shaft and the second rotating shaft rotate in opposite directions.

[0040] A sealing and cutting machine with a vertically lifting sealing blade assembly, wherein the connecting hole of the rotating arm is connected to one side of the corresponding first rotating shaft and second rotating shaft.

[0041] A sealing and cutting machine with a vertically lifting sealing blade assembly includes a drive cylinder that drives a second rotating shaft to rotate counterclockwise, and a first rotating shaft that is driven by a drive shaft to rotate clockwise. Short rods on the first, second, and third drive assemblies descend to drive the lower L-shaped sealing and cutting section to descend; long rods on the first, second, and third drive assemblies rise to drive the upper L-shaped sealing and cutting section to rise, and the L-shaped sealing and cutting assembly opens.

[0042] The drive cylinder drives the second rotating shaft to rotate clockwise, and the first rotating shaft is driven by the drive shaft to rotate counterclockwise. The short rods on the first drive assembly, the second drive assembly, and the third drive assembly move up and down to drive the lower L-shaped sealing and cutting part to rise. The long rods on the first drive assembly, the second drive assembly, and the third drive assembly descend to drive the upper L-shaped sealing and cutting part to descend, and the L-shaped sealing and cutting assembly closes.

[0043] During the opening and closing of the L-shaped sealing and cutting assembly, the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part move vertically and equidistantly up and down along the guide rod via the guide sleeve.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sealing and cutting machine with a vertical lifting sealing blade assembly, comprising a frame (1), a film feeding assembly (2), an infeed conveyor belt assembly (3), a film support bracket (17), an L-shaped sealing and cutting assembly (5), an outfeed conveyor belt assembly (6), and a waste recycling assembly (15), wherein the outfeed conveyor belt assembly and the infeed conveyor belt assembly are arranged front and rear on the frame, the L-shaped sealing and cutting assembly is provided on the frame, the film feeding assembly is provided on the side frame of one side of the infeed conveyor belt assembly, and the film roll passes through the film feeding assembly; the film support bracket is provided on the infeed conveyor belt assembly, and the film is folded and fitted onto the film support bracket, the film conveying device (9) is provided on the other side of the outfeed conveyor belt assembly, the waste recycling assembly (15) is provided below the film conveying device, and an openable cover (10) for covering the L-shaped sealing and cutting assembly is provided on the side frame (8) of one side of the outfeed conveyor belt assembly; characterized in that: A first connecting rod (11) and a second connecting rod (12) are provided above the discharge conveyor belt assembly. The first connecting rod is located at the front end of the discharge conveyor belt assembly, close to the film feeding assembly. One end of the first connecting rod and the second connecting rod are connected to the side frame (8). Guide rods (13) are provided at both ends of the first connecting rod, and guide rods are provided at the other end of the second connecting rod. The L-shaped sealing and cutting assembly (5) includes an upper L-shaped sealing and cutting part (51) and a lower L-shaped sealing and cutting part (52). Guide sleeves (14) corresponding to the three guide rods are provided on the outer side of the upper L-shaped sealing and cutting part and the outer side of the lower L-shaped sealing and cutting part. The guide sleeves are fitted on the corresponding guide rods. The upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part are provided with drive assemblies (7) for driving the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part. The drive assembly (7) includes a first drive assembly (70), a second drive assembly (71), a third drive assembly (72), a base (73), a first rotating shaft (74), a second rotating shaft (75), a drive shaft (76), a drive cylinder (77), and a first drive arm. (78) and the second driving arm (79), the base is provided with a driving cylinder at the lower end of the feeding conveyor belt assembly, the base is provided with a second rotating shaft at the longitudinal part of the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part, the base is provided with a first rotating shaft at the end of the transverse part of the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part, a first driving component is provided on one side of the first rotating shaft, a second driving component and a third driving component are provided on both sides of the second rotating shaft, the first driving component, the second driving component and the third driving component drive the upper L-shaped sealing and cutting part and the lower L-shaped sealing and cutting part to work, the middle part of the first rotating shaft is connected to one end of the two first driving arms, the middle part of the second rotating shaft is connected to one end of the two second driving arms, a first connecting shaft is provided between the other ends of the two first driving arms, one end of the driving shaft is rotatably connected to the first connecting shaft; a second connecting shaft is provided between the other ends of the two second driving arms, the other end of the driving shaft is rotatably connected to the second connecting shaft, the output shaft of the driving cylinder is rotatably connected to the second connecting shaft, the driving cylinder drives the first rotating shaft and the second rotating shaft to work.

2. A sealing and cutting machine with vertical lifting of the sealing blade assembly according to claim 1, characterized in that: The first drive assembly, the second drive assembly, and the third drive assembly all include a rotating arm (701), a long rod (702), and a short rod (703). The rotating arm has a connecting hole in the middle. One side of the rotating arm is rotatably connected to one end of the long rod, and the other end of the long rod is rotatably connected to the upper L-shaped sealing and cutting part. The other side of the rotating arm is rotatably connected to one end of the short rod, and the other end of the short rod is rotatably connected to the lower L-shaped sealing and cutting part.

3. A sealing and cutting machine with vertical lifting of the sealing blade assembly according to claim 2, characterized in that: An adjustable height support frame (4) is provided at the lower end of the base.

4. A sealing and cutting machine with vertical lifting of the sealing blade assembly according to claim 3, characterized in that: The adjustable height support frame includes a rotary motor (41), a gear (42), a chain (43), a support shaft (44), and a support shaft seat (45). The lower end of the support shaft is provided with a rotatable support shaft seat, and the upper end of the support shaft is provided with a thread. The base is threaded to the upper end of the support shaft at the front and rear and left and right sides respectively. The support shaft is provided with a gear, and the gears of the four support shafts are connected by a chain. Any support shaft is provided with a first gear (46), and the first gear is connected to the second gear chain on the rotating shaft of the rotary motor.

5. A sealing and cutting machine with vertical lifting of the sealing blade assembly according to claim 4, characterized in that: The adjustable height support frame is mounted on the frame base (16).

6. A sealing and cutting machine with vertical lifting of the sealing blade assembly according to claim 5, characterized in that: The first and second rotating axes rotate in opposite directions.

7. A sealing and cutting machine with vertical lifting of the sealing blade assembly according to claim 6, characterized in that: The connecting hole of the rotating lever arm is connected to one side of the corresponding first rotating shaft and second rotating shaft.

Citation Information

Patent Citations

  • L-shaped full-automatic film sealing and cutting machine

    CN118579331A

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    TWM396256U