Sealing and cutting machine with edge warping prevention structure

Through the design of anti-curl structure, the coordination of the limit rotary rod and spring is used to solve the problems of curling and offset during the movement of the sealing and cutting membrane, the stable clamping and guidance of the membrane is achieved, and the stability and smoothness of movement are improved.

CN223238111UActive Publication Date: 2025-08-19CHANGZHOU ZHONGHUI ULTRASONIC TECH CO LTD
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Patent Information

Application Number
CN202422698772.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-08-19
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

The existing sealing and cutting machines are prone to curling edges and offsets during the film movement, resulting in overlapping on the triangle plate, insufficient friction, and affecting the movement stability.

Method used

An anti-curling structure is designed, including components such as fixing frame, movable block, rotating rod, diaphragm wheel and limiting disk. Through the coordination of the limiting rod and spring, stable clamping and guiding of the membrane is achieved to avoid curling and offset.

Benefits of technology

Effectively avoid the overlap of the film on the upside of the triangle plate, improve the stability and smoothness of the film movement, and reduce the impact of friction on movement.

✦ Generated by Eureka AI based on patent content.

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Abstract

A sealing and cutting machine with an edge warping prevention structure relates to the technical field of packaging and is characterized in that a fixing frame is fixedly arranged on the front side of the upper portion of a feeding assembly, a movable block is movably arranged in a movable groove formed in the rear side wall of the fixing frame, and a first rotating rod is rotatably connected to the movable block through a bearing; a first spring connected with the movable block is fixedly arranged in the movable groove, the driving rod is rotationally arranged on the position, located below the movable groove, of the rear side wall of the fixing frame through a bearing, the driving rod is movably sleeved with a second rotating rod, and the first rotating rod and the second rotating rod are both fixedly sleeved with film pressing wheels. The second spring is fixedly arranged in the second rotating rod and fixedly connected with one end of the driving rod, and the position, located on the rear side of the film pressing wheel, of the second rotating rod is fixedly sleeved with a limiting disc, so that edge warping and overlapping of the film on a triangular plate in the film moving process can be avoided; and the upper edge and the lower edge of the film can be stably clamped and guided, and deviation of the film is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a sealing and cutting machine provided with an anti-warping edge structure. Background Art

[0002] The sealing and cutting machine is a fully automatic packaging machine with unmanned operation. It is widely used in the assembly line operation of mass production packaging. It has high work efficiency and is suitable for products of different widths and heights. In order to provide guidance for the movement of the film on the sealing and cutting machine and improve the stability of the movement, two film guide wheels will be used to clamp the film. However, there is a line contact between the film guide wheel and the film, and the friction generated is relatively limited. The film is still at risk of deviation during movement, and may even cause the film wrapped around the triangle plate of the sealing and cutting machine to warp and overlap. Therefore, a sealing and cutting machine with an anti-warping structure is urgently needed. Utility Model Content

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and to provide a sealing and cutting machine with a rationally designed anti-warping edge structure to solve the above problems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: it comprises a sealing and cutting machine body, which is composed of a feeding assembly, a sealing and cutting assembly, a film feeding assembly and a film guide triangle plate, the sealing and cutting assembly is arranged on the feeding assembly, the film feeding assembly is arranged on the rear side of the feeding assembly, and the film guide triangle plate is arranged on the feeding assembly;

[0005] It also contains:

[0006] A fixed frame, the fixed frame is fixedly arranged on the front side of the upper part of the feeding assembly, a movable block is movably arranged in a movable groove opened on the rear side wall of the fixed frame, a No. 1 rotating rod is rotatably connected to the movable block through a bearing, and a No. 1 spring connected to the movable block is fixedly arranged in the movable groove;

[0007] A driving rod is rotatably arranged on the rear side wall of the fixed frame at a position below the movable groove through a bearing, a second rotating rod is movably sleeved on the driving rod, and a film pressing wheel is fixedly sleeved on both the first rotating rod and the second rotating rod;

[0008] No. 2 spring, the No. 2 spring is fixedly arranged in the No. 2 rotating rod, and the No. 2 spring is fixedly connected to one end of the driving rod. A limit plate is fixedly sleeved on the No. 2 rotating rod at the rear side of the film pressing wheel, and an anti-warping mechanism is provided on the film guide triangle plate.

[0009] Furthermore, the anti-warping mechanism includes:

[0010] Rotating blocks, there are two rotating blocks, which are respectively rotatably arranged on the upper and lower sides of the film guide triangle plate through shafts and bearings, and a limited rotating rod is rotatably arranged on the rotating blocks through shafts and bearings;

[0011] A vertical rod, the vertical rod is fixedly arranged between the two rotating blocks, a limit rod is movably provided on the vertical rod, one end of the limit rod is movably inserted into the limit groove provided on the side wall of the film guide triangle plate, and the other end of the limit rod is fixedly provided with a pulling handle;

[0012] The No. 3 spring is movably sleeved on the limiting rod, and the two ends of the No. 3 spring are respectively fixedly connected to the pulling handle and the film guide triangle plate.

[0013] Furthermore, a wear-resistant guide groove communicating with the limiting groove is provided on the side wall of the film guide triangle plate, and one end of the limiting rod is matched with the wear-resistant guide groove.

[0014] Furthermore, one end of the position-limiting rotating rod is rotatably connected to a connecting seat via a shaft and a bearing, and reinforcing plates connected to the rotating block are fixedly provided on both side walls of the connecting seat.

[0015] Furthermore, a plurality of grooves with evenly rounded corners are provided on the front side wall of the limiting plate and the rear side wall of the upper film pressing wheel, and a rotating wheel is rotatably provided in the groove via a shaft and a bearing.

[0016] Furthermore, a guide rod is fixedly provided in the movable groove, and the No. 1 spring and the movable block are both movably sleeved on the guide rod.

[0017] Compared with the prior art, the beneficial effect of the present invention is that the sealing and cutting machine provided with an anti-warping structure described in the present invention can not only avoid the warping and overlapping of the film on the triangular plate during the movement of the film, but also can achieve stable clamping and guiding of the upper and lower edges of the film to avoid deviation of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 yes Figure 1 Enlarged view of part A in .

[0020] Figure 3 It is an exploded view of the parts of the fixed frame, movable block, No. 1 rotating rod, No. 1 spring, driving rod, No. 2 rotating rod, film pressing wheel, No. 2 spring, limit plate, rotating wheel and guide rod in the utility model.

[0021] Figure 4 It is an exploded view of the parts of the guide film triangle plate, anti-warping mechanism, connecting seat and reinforcement plate in the utility model.

[0022] Figure 5 yes Figure 4 Enlarged view of part B in .

[0023] Description of reference numerals:

[0024] Sealing and cutting machine body 1, feeding assembly 1-1, sealing and cutting assembly 1-2, film feeding assembly 1-3, film guide triangle plate 1-4, fixing frame 2, movable groove 3, movable block 4, No. 1 rotating rod 5, No. 1 spring 6, driving rod 7, No. 2 rotating rod 8, film pressing wheel 9, No. 2 spring 10, limiting plate 11, anti-warping mechanism 12, rotating block 12-1, limiting rotating rod 12-2, vertical rod 12-3, limiting rod 12-4, pulling handle 12-5, No. 3 spring 12-6, limiting groove 13, wear-resistant guide groove 14, rotating wheel 15, connecting seat 16, reinforcement plate 17, guide rod 18. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 3 As shown, this specific embodiment adopts the following technical solution: it includes a sealing and cutting machine body 1, which is composed of a feeding assembly 1-1, a sealing and cutting assembly 1-2, a film feeding assembly 1-3 and a film guiding triangle plate 1-4. The sealing and cutting assembly 1-2 is arranged on the feeding assembly 1-1, the film feeding assembly 1-3 is arranged on the rear side of the feeding assembly 1-1, and the film guiding triangle plates 1-4 are provided on the upper and lower sides of the feeding assembly 1-1;

[0027] It also contains:

[0028] A fixed frame 2, wherein the fixed frame 2 is fixedly arranged on the front side of the upper part of the feeding assembly 1-1, and a movable block 4 is movably arranged in a movable groove 3 opened on the rear side wall of the fixed frame 2, and a No. 1 rotating rod 5 is rotatably connected to the movable block 4 through a bearing, and a No. 1 spring 6 connected to the movable block 4 is fixedly arranged in the movable groove 3, and a guide rod 18 is fixedly arranged in the movable groove 3, and the No. 1 spring 6 and the movable block 4 are movably sleeved on the guide rod 18, and the guide rod 18 can not only provide auxiliary movement guidance for the movable block 4, improve the movement stability of the movable block 4, but also prevent the No. 1 spring 6 from bending when compressed, thereby affecting the service life of the No. 1 spring 6;

[0029] A driving rod 7 is rotatably provided on the rear side wall of the fixed frame 2 and located below the movable groove 3 through a bearing. A second rotating rod 8 is movably sleeved on the driving rod 7. A film pressing wheel 9 is fixedly sleeved on both the first rotating rod 5 and the second rotating rod 8.

[0030] The second spring 10 is fixedly arranged in the second rotating rod 8, and the second spring 10 is fixedly connected to one end of the driving rod 7. A limit plate 11 is fixedly sleeved on the No. 2 rotating rod 8 at the rear position of the film pressing wheel 9, and an anti-warping mechanism 12 is provided on the film guide triangle plate 1-4. Several grooves with equal fillets are provided on the front side wall of the limit plate 11 and the rear side wall of the upper film pressing wheel 9. A rotating wheel 15 is rotatably arranged in the groove through an axis and a bearing. When the film moves and contacts between the two film pressing wheels 9 and is bent by the influence of the limit plate 11, the rotation of the rotating wheel 15 can effectively reduce the friction generated between the bending part of the film and the limit plate 11 and the upper film pressing wheel 9, thereby avoiding a significant impact on the smoothness of the film when moving;

[0031] The anti-warping mechanism 12 includes:

[0032] Rotating block 12-1, there are two rotating blocks 12-1, which are rotatably arranged on the upper and lower sides of the film guide triangle 1-4 through shafts and bearings respectively. A limit rotating rod 12-2 is rotatably arranged on the rotating block 12-1 through the shaft and bearings. One end of the limit rotating rod 12-2 is rotatably connected to a connecting seat 16 through a shaft and bearings. Reinforcement plates 17 connected to the rotating block 12-1 are fixedly provided on both side walls of the connecting seat 16. Through the cooperation between the connecting seat 16 and the reinforcement plate 17, the structural strength between the limit rotating rod 12-2 and the rotating block 12-1 can be improved, making the rotation of the limit rotating rod 12-2 more stable;

[0033] A vertical rod 12-3 is fixedly provided between the two rotating blocks 12-1. A limiting rod 12-4 is movably provided on the vertical rod 12-3. One end of the limiting rod 12-4 is movably inserted into a limiting groove 13 provided on the side wall of the film guide triangle 1-4. A pulling handle 12-5 is fixedly provided on the other end of the limiting rod 12-4.

[0034] The third spring 12-6 is movably mounted on the limit rod 12-4, and the two ends of the third spring 12-6 are respectively fixedly connected to the pulling handle 12-5 and the film guide triangle 1-4. A wear-resistant guide groove 14 that is connected to the limit groove 13 is provided on the side wall of the film guide triangle 1-4, and one end of the limit rod 12-4 is matched with the wear-resistant guide groove 14. When the limits on both sides are rotated to the upper and lower sides of the film guide triangle 1-4, the end of the limit rod 12-4 can be movably set in the wear-resistant guide groove 14, which not only avoids the end of the limit rod 12-4 from directly moving on the side wall of the film guide triangle 1-4 and causing wear, but also provides guidance for the movement of the limit rod 12-4, thereby improving the stability of the limit rotating rods 12-2 on both sides rotating to the upper and lower sides of the film guide triangle 1-4.

[0035] When using the present invention, the pull handle 12-5 is moved in the direction away from the vertical rod 12-3, so that one end of the limit rod 12-4 is disengaged from the limit groove 13, and the No. 3 spring 12-6 is stretched, and then the rotating block 12-1 is rotated to disengage the limit rotating rod 12-2 from the film guide triangle 1-4, and then the film is wound around the film guide triangle 1-4, and then the rotating block 12-1 is rotated in the opposite direction, so that the limit rotating rods 12-2 on both sides return to their original positions, and the limit rods 12-4 are used to realize the position limitation of the rotating block 12-1 and the limit rotating rod 12-2 in this state. When the film moves on the film guide triangle 1-4, the influence of the limit rotating rod 12-2 can avoid the edge of the film from warping and overlapping, and then The upper film pressing wheel 9 can be pulled upward to move the movable block 4 upward and compress the No. 1 spring 6, and the lower film pressing wheel 9 can be pulled backward to move the No. 2 rotating rod 8 backward and stretch the No. 2 spring 10, and then the film is placed between the two film pressing wheels 9 and the film pressing wheels 9 are released. At this time, the No. 1 spring 6 is shortened and drives the upper film pressing wheel 9 to move downward through the movable block 4 and the No. 1 rotating rod 5, so that the film is clamped between the two film pressing wheels 9, and the No. 2 spring 10 is shortened and drives the lower film pressing wheel 9 to move forward through the No. 2 rotating rod 8, so that the limit plate 11 can cooperate with the upper film pressing wheel 9 to clamp the film, so that the film forms a "Z"-shaped bending state, avoiding the film from offsetting during the movement on the feeding component 1-1.

[0036] After adopting the above structure, the beneficial effects of this specific embodiment are as follows:

[0037] Through the cooperation of the driving rod 7, the second rotating rod 8, the second spring 10 and the limiting plate 11, the film can be bent when it is in contact with the two pressing wheels 9, thus avoiding the deviation caused by the movement of the film back and forth.

[0038] Through the cooperation of the anti-warping mechanism 12, the limiting rotating rod 12-2 therein can provide guidance and restriction for the film on the upper and lower sides of the film guide triangle 1-4, thereby preventing the edges of the film from warping and overlapping;

[0039] The guide rod 18 not only provides auxiliary movement guidance for the movable block 4, thereby improving the movement stability of the movable block 4, but also prevents the No. 1 spring 6 from bending during compression, thereby reducing the service life of the No. 1 spring 6.

[0040] 4. When the film moves and contacts between the two film pressing wheels 9 and is bent due to the influence of the limiting plate 11, the rotation of the rotating wheel 15 can effectively reduce the friction generated between the bent part of the film and the limiting plate 11 and the upper film pressing wheel 9, thereby avoiding a significant impact on the smoothness of the film during movement.

[0041] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A sealing and cutting machine with an anti-warping edge structure, comprising a sealing and cutting machine body (1), the sealing and cutting machine body (1) being composed of a feeding assembly (1-1), a sealing and cutting assembly (1-2), a film feeding assembly (1-3) and a film guiding triangular plate (1-4), the sealing and cutting assembly (1-2) being arranged on the feeding assembly (1-1), the film feeding assembly (1-3) being arranged on the rear side of the feeding assembly (1-1), and the film guiding triangular plate (1-4) being arranged on the feeding assembly (1-1); Its characteristics are: It also contains: A fixed frame (2), the fixed frame (2) being fixedly arranged on the front side of the upper portion of the feeding assembly (1-1), a movable block (4) being movably arranged in a movable groove (3) provided on the rear side wall of the fixed frame (2), a No. 1 rotating rod (5) being rotatably connected to the movable block (4) via a bearing, and a No. 1 spring (6) being fixedly arranged in the movable groove (3) and connected to the movable block (4); A driving rod (7), the driving rod (7) is rotatably arranged on the rear side wall of the fixed frame (2) at a position below the movable groove (3) through a bearing, a second rotating rod (8) is movably sleeved on the driving rod (7), and a film pressing wheel (9) is fixedly sleeved on both the first rotating rod (5) and the second rotating rod (8); A No. 2 spring (10) is fixedly arranged in the No. 2 rotating rod (8), and the No. 2 spring (10) is fixedly connected to one end of the driving rod (7). A limit plate (11) is fixedly sleeved on the No. 2 rotating rod (8) at a rear position of the film pressing wheel (9), and an anti-warping mechanism (12) is provided on the film guide triangle plate (1-4).

2. The sealing and cutting machine with an anti-warping structure according to claim 1, characterized in that: The anti-warping mechanism (12) comprises: Rotating blocks (12-1), the rotating blocks (12-1) are two and are rotatably arranged on the upper and lower sides of the film guide triangle plate (1-4) via shafts and bearings, respectively; a limited rotating rod (12-2) is rotatably arranged on the rotating blocks (12-1) via shafts and bearings; A vertical rod (12-3), the vertical rod (12-3) is fixedly arranged between the two rotating blocks (12-1), a limiting rod (12-4) is movably inserted into the vertical rod (12-3), one end of the limiting rod (12-4) is movably inserted into a limiting groove (13) provided on the side wall of the film guide triangle plate (1-4), and a pulling handle (12-5) is fixedly arranged on the other end of the limiting rod (12-4); A No. 3 spring (12-6) is movably sleeved on the limiting rod (12-4), and two ends of the No. 3 spring (12-6) are respectively fixedly connected to the pulling handle (12-5) and the film guide triangle plate (1-4).

3. The sealing and cutting machine with an anti-warping structure according to claim 2, characterized in that: A wear-resistant guide groove (14) that is in communication with the limiting groove (13) is provided on the side wall of the film guide triangle plate (1-4), and one end of the limiting rod (12-4) is matched with the wear-resistant guide groove (14).

4. The sealing and cutting machine with an anti-warping structure according to claim 2, characterized in that: One end of the position-limiting rotating rod (12-2) is rotatably connected to a connecting seat (16) via a shaft and a bearing, and reinforcing plates (17) connected to the rotating block (12-1) are fixedly provided on both side walls of the connecting seat (16).

5. The sealing and cutting machine with an anti-warping structure according to claim 1, characterized in that: Several grooves with evenly rounded corners are provided on the front side wall of the limiting plate (11) and the rear side wall of the upper film pressing wheel (9), and a rotating wheel (15) is rotatably provided in the groove via a shaft and a bearing.

6. The sealing and cutting machine with an anti-warping structure according to claim 1, characterized in that: A guide rod (18) is fixedly provided in the movable groove (3), and the No. 1 spring (6) and the movable block (4) are both movably sleeved on the guide rod (18).