Sealing and cutting knife structure of full-automatic sealing and cutting machine

Abstract

A sealing and cutting knife structure of a full-automatic sealing and cutting machine is characterized in that a cutter assembly is arranged at the lower end of an upper sealing and cutting frame, a cutter matching assembly corresponding to the cutter assembly is arranged at the upper end of a lower sealing and cutting frame, the outer side walls of the two sides of the upper sealing and cutting frame are each connected with one end of a first connecting rod, and the other end of each first connecting rod is correspondingly connected to one end of a rotating block on the corresponding side; the outer side walls of the two sides of the lower sealing and cutting frame are each connected with one end of a second connecting rod, the other ends of the second connecting rods are correspondingly connected to the other ends of the rotating blocks on the corresponding sides, the centers of the two rotating blocks are connected to a driving shaft at the lower end of the lower sealing and cutting frame, and the driving shaft is connected with a driving device through a cam. The driving device is arranged at the lower end, so that space is saved, and the structure is simple; safety is good, sealing and cutting are thorough, and work is smooth.

Description

Technical Field

[0001] The utility model relates to a sealing and cutting knife structure of a full-automatic sealing and cutting machine. Background Art

[0002] The sealing and cutting machine is a packaging machine with full-automatic unmanned operation, which is widely used in the assembly line of batch production packaging. It has high working efficiency, automatically feeds the film and punches holes, automatically sleevs the film for sealing and cutting, and automatically winds up the waste materials. Only the film guiding system and the feeding conveying platform need to be manually adjusted to be applicable to products of different widths and heights, and it can be used in conjunction with an automatic packaging production line. It is the first choice for heat shrink packaging of product sealing and cutting.

[0003] In the sealing and cutting process of the existing sealing and cutting knife structure of the sealing and cutting machine, problems such as incomplete sealing at the film sealing and cutting part, complex structure and high danger are likely to occur. Content of the Utility Model

[0004] To solve the above problems, a sealing and cutting knife structure of a full-automatic sealing and cutting machine is specially made.

[0005] To achieve the above purpose, the utility model is solved through the following technical solutions: A sealing and cutting knife structure of a full-automatic sealing and cutting machine includes an upper sealing and cutting frame, a lower sealing and cutting frame, a knife rest, a cutting knife assembly, a cutting knife matching assembly and a driving assembly; the upper sealing and cutting frame is of a frame structure, and both sides of the opening at the rear side of the upper sealing and cutting frame are respectively pivotally connected to the upper ends of a knife rest; the lower sealing and cutting frame is of a frame structure, and both sides of the opening at the rear side of the lower sealing and cutting frame are respectively pivotally connected to the lower ends of a knife rest, and the lower ends of the two knife rests are rotationally connected to both sides of the conveying frame of the full-automatic sealing and cutting machine. The lower end of the upper sealing and cutting frame is provided with a cutting knife assembly, and the upper end of the lower sealing and cutting frame is provided with a cutting knife matching assembly corresponding to the cutting knife assembly. One end of a first connecting rod is respectively connected to the outer side walls of both sides of the upper sealing and cutting frame, and the other end of the first connecting rod is correspondingly connected to one end of the rotating block on the corresponding side. One end of a second connecting rod is respectively connected to the outer side walls of both sides of the lower sealing and cutting frame, and the other end of the second connecting rod is correspondingly connected to the other end of the rotating block on the corresponding side. The centers of the two rotating blocks are connected to the driving shaft connected to the lower end of the lower sealing and cutting frame, and the driving shaft is connected to the driving device through a cam.

[0006] Furthermore, the cutting knife assembly includes a cutting knife, a cutting knife fixing rod, a sealing plate, a sealing plate connecting rod, a spring and a travel switch. The upper end of the cutting knife is connected to the cutting knife fixing rod and is fixedly arranged at the lower end of the upper sealing and cutting frame through the cutting knife fixing rod. Sealing plates are arranged on both sides of the cutting knife. The two sealing plates are connected through a connecting column and are movably connected to the lower end of the upper sealing and cutting frame through the sealing plate connecting rod. A spring is sleeved on the sealing plate connecting rod. The upper end of the spring abuts against the lower end of the upper sealing and cutting frame, and the lower end of the spring abuts against the connecting column at the lower end of the sealing plate connecting rod. A travel switch is arranged on the moving route of the sealing plate connecting rod at the upper end of the upper sealing and cutting frame.

[0007] Further, a heating cavity is provided inside the cutting knife, a heating component is provided inside the heating cavity, and the lower end of the cutting knife is a blade part that gradually closes in; the lower ends of the two sealing plates are also bending parts that gradually close in, and a blade cutting gap is provided between the bending parts.

[0008] Further, a number of heat dissipation cutouts are provided on the two sealing plates.

[0009] Further, the cutting knife matching component includes a cutting knife matching frame and a cutting knife matching pad. The lower end of the cutting knife matching frame is movably arranged at the upper end of the lower sealing and cutting frame through a connecting rod. A first spring is sleeved outside the connecting rod. The upper end of the first spring abuts against the lower end of the cutting knife matching frame, and the lower end of the first spring abuts against the upper end of the lower sealing and cutting frame; an opening cavity for installing the cutting knife matching pad is provided at the upper end of the cutting knife matching frame, and the cutting knife matching pad is installed in the opening cavity for installing the cutting knife matching pad to cooperate with the cutting knife.

[0010] Further, the cutting knife component and the cutting knife matching component are L-shaped.

[0011] The beneficial effects of the present utility model are as follows: The driving device is arranged at the lower end, saving space and having a simple structure; good safety, thorough sealing and cutting, and smooth operation. Description of the Drawings

[0012] Figure 1 For structural illustration Figure 1 。

[0013] Figure 2 For structural illustration Figure 2 。

[0014] Figure 3 For structural illustration Figure 3 。

[0015] Figure 4 For structural illustration Figure 4 。

[0016] Figure 5 For structural illustration Figure 5 。 Detailed Embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Figures 1-5

[0018] ​Embodiment 1. A sealing and cutting knife structure of a full-automatic sealing and cutting machine, comprising an upper sealing and cutting frame 1, a lower sealing and cutting frame 2, a knife rest 3, a cutting knife assembly 5, a cutting knife matching assembly 9 and a driving assembly 4; the upper sealing and cutting frame 1 is of a frame structure, and the two sides of the opening at the rear of the upper sealing and cutting frame are respectively pivotally connected to the upper ends of a knife rest 3; the lower sealing and cutting frame 2 is of a frame structure, and the two sides of the opening at the rear of the lower sealing and cutting frame are respectively pivotally connected to the lower ends of a knife rest 3, and the lower ends of the two knife rests 3 are pivotally connected to both sides of the conveying frame 10 of the full-automatic sealing and cutting machine. A cutting knife assembly is provided at the lower end of the upper sealing and cutting frame, and a cutting knife matching assembly corresponding to the cutting knife assembly is provided at the upper end of the lower sealing and cutting frame. One end of a first connecting rod 6 is respectively connected to the outer side walls on both sides of the upper sealing and cutting frame, and the other end of the first connecting rod is correspondingly connected to one end of a rotating block 7 on the corresponding side. One end of a second connecting rod 8 is respectively connected to the outer side walls on both sides of the lower sealing and cutting frame, and the other end of the second connecting rod is correspondingly connected to the other end of the rotating block on the corresponding side. The centers of the two rotating blocks are connected to a driving shaft 11 provided at the lower end of the lower sealing and cutting frame, and the driving shaft is connected to a driving device through a cam.

[0019] A sealing and cutting knife structure of a full-automatic sealing and cutting machine, the cutting knife assembly 5 includes a cutting knife 51, a cutting knife fixing rod 52, a sealing plate 53, a sealing plate connecting rod 54, a spring 55 and a travel switch 56. The upper end of the cutting knife is connected to the cutting knife fixing rod and is fixedly arranged at the lower end of the upper sealing and cutting frame through the cutting knife fixing rod. Sealing plates are provided on both sides of the cutting knife, and the two sealing plates are connected through a connecting column and are movably connected to the lower end of the upper sealing and cutting frame through the sealing plate connecting rod. A spring is sleeved on the sealing plate connecting rod, the upper end of the spring abuts against the lower end of the upper sealing and cutting frame, and the lower end of the spring abuts against the connecting column at the lower end of the sealing plate connecting rod. A travel switch is provided on the moving route of the sealing plate connecting rod at the upper end of the upper sealing and cutting frame.

[0020] A sealing and cutting knife structure of a full-automatic sealing and cutting machine, the travel switch is connected to a mounting frame 57, the lower end of the mounting frame is arranged inside the upper sealing and cutting frame, an elastic piece 58 is provided at the lower end of the travel switch, one end of the elastic piece is connected to the lower end of the travel switch, and the other end of the elastic piece is provided with a contact head, which is arranged on the moving route of the sealing plate connecting rod; a second spring 59 is also provided between the middle of the elastic piece and the lower end of the travel switch.

[0021] A sealing and cutting knife structure of a full-automatic sealing and cutting machine, and the two sealing plates are also connected through a roller shaft.

[0022] A sealing and cutting knife structure of a full-automatic sealing and cutting machine, a heating cavity 511 is provided inside the cutting knife, a heating component is provided in the heating cavity, and the lower end of the cutting knife is a blade part 512 that gradually converges; the lower ends of the two sealing plates are also a bending part 431 that gradually converges, and a blade exit gap 432 is provided between the bending parts.

[0023] A sealing and cutting knife structure of a full-automatic sealing and cutting machine, and a plurality of heat dissipation cutouts are provided on the two sealing plates.

[0024] The sealing and cutting knife structure of a fully automatic sealing and cutting machine, the cutting knife matching component 9 includes a cutting knife matching frame 91 and a cutting knife matching pad 92. The lower end of the cutting knife matching frame is movably arranged at the upper end of the lower sealing and cutting frame through a connecting rod 93. A first spring 94 is sleeved outside the connecting rod. The upper end of the first spring abuts against the lower end of the cutting knife matching frame, and the lower end of the first spring abuts against the upper end of the lower sealing and cutting frame. An installation opening cavity 95 for the cutting knife matching pad is arranged at the upper end of the cutting knife matching frame, and the cutting knife matching pad is installed in the installation opening cavity for the cutting knife matching pad to cooperate with the cutting knife.

[0025] The sealing and cutting knife structure of a fully automatic sealing and cutting machine, the cutting knife component and the cutting knife matching component are L-shaped.

[0026] The sealing and cutting knife structure of a fully automatic sealing and cutting machine, the driving device is arranged at the lower end to save space, with a simple structure; good safety, thorough sealing and cutting and smooth operation.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A sealing and cutting knife structure of a fully automatic sealing and cutting machine, comprising an upper sealing and cutting frame (1), a lower sealing and cutting frame (2), a knife frame (3), a cutting knife assembly (5), a cutting knife matching assembly (9) and a driving assembly (4); characterized in that: The upper sealing and cutting frame (1) is a frame-type structure, and the two sides of the opening on the rear side of the upper sealing and cutting frame are respectively connected to the upper end of a knife frame (3) by an axis; the lower sealing and cutting frame (2) is a frame-type structure, and the two sides of the opening on the rear side of the lower sealing and cutting frame are respectively connected to the lower end of a knife frame (3) by an axis, and the lower ends of the two knife frames (3) are connected by rotating shafts and arranged on the two sides of the conveying frame (10) of the full-automatic sealing and cutting machine, and the lower end of the upper sealing and cutting frame is provided with a cutter assembly, and the upper end of the lower sealing and cutting frame is provided with a cutter matching assembly corresponding to the cutter assembly, and the outer side walls on both sides of the upper sealing and cutting frame are respectively connected to one end of a first connecting rod (6), and the other end of the first connecting rod is correspondingly connected to one end of a rotating block (7) on the corresponding side, and the outer side walls on both sides of the lower sealing and cutting frame are respectively connected to one end of a second connecting rod (8), and the other end of the second connecting rod is correspondingly connected to the other end of the rotating block on the corresponding side, and the two rotating blocks are centrally connected to a driving shaft (11) at the lower end of the lower sealing and cutting frame, and the driving shaft is connected to a driving device through a cam.

2. The sealing and cutting blade structure of a fully automatic sealing and cutting machine according to claim 1, characterized in that: The cutter assembly (5) comprises a cutter (51), a cutter fixing rod (52), a sealing plate (53), a sealing plate connecting rod (54), a spring (55) and a travel switch (56). The upper end of the cutter is connected to the cutter fixing rod and is fixedly arranged at the lower end of the upper sealing and cutting frame through the cutter fixing rod. Sealing plates are arranged on both sides of the cutter. The two sealing plates are connected by a connecting column and are movably connected to the lower end of the upper sealing and cutting frame through a sealing plate connecting rod. A spring is sleeved on the sealing plate connecting rod. The upper end of the spring abuts against the lower end of the upper sealing and cutting frame, and the lower end of the spring abuts against the connecting column at the lower end of the sealing plate connecting rod. A travel switch is arranged on the moving path of the sealing plate connecting rod at the upper end of the upper sealing and cutting frame.

3. The sealing and cutting blade structure of a fully automatic sealing and cutting machine according to claim 2, characterized in that: A heating chamber (511) is provided inside the cutter, and a heating assembly is provided inside the heating chamber. The lower end of the cutter is a gradually approaching blade portion (512); the lower ends of the two sealing plates are also gradually approaching bending portions (431), and a blade gap (432) is provided between the bending portions.

4. The sealing and cutting blade structure of a fully automatic sealing and cutting machine according to claim 3, characterized in that: A number of heat dissipation cutouts are provided on the two sealing plates.

5. The sealing and cutting blade structure of a fully automatic sealing and cutting machine according to claim 4, characterized in that: The cutter matching assembly (9) comprises a cutter matching frame (91) and a cutter matching pad (92); the lower end of the cutter matching frame is movably arranged on the upper end of the lower sealing and cutting frame through a connecting rod (93); a first spring (94) is sleeved on the outer side of the connecting rod; the upper end of the first spring abuts against the lower end of the cutter matching frame; and the lower end of the first spring abuts against the upper end of the lower sealing and cutting frame; a cutter matching pad mounting opening cavity (95) is provided at the upper end of the cutter matching frame; the cutter matching pad is mounted in the cutter matching pad mounting opening cavity to match the cutter.

6. The sealing and cutting blade structure of a fully automatic sealing and cutting machine according to claim 5, characterized in that: The cutter assembly and the cutter matching assembly are L-shaped.

Images