Linkage type sealing mechanism

Abstract

The utility model discloses a linkage type sealing mechanism which comprises a heat sealing mechanism capable of integrally moving up and down, the heat sealing mechanism comprises an upper sealing and cutting assembly and a lower sealing and cutting assembly which are linked and arranged up and down, and a linkage assembly is arranged between the upper sealing and cutting assembly and the lower sealing and cutting assembly. When the upper sealing and cutting assembly moves up and down, the linkage assembly synchronously drives the lower sealing and cutting assembly to move up and down so as to cooperate with the upper sealing and cutting assembly to construct sealing and cutting actions. The upper sealing and cutting assembly and the lower sealing and cutting assembly are connected through the linkage assembly and can move up and down on the fixing frame, under the driving of the sealing and cutting air cylinder, an upper pull rod moves up and down and cooperates with a lower pull rod through a torque arm so as to pull a lower knife edge plate and an upper knife edge plate to move up and down in a linkage mode, and therefore the height of the sealing position can be adjusted; and the whole sealing mechanism can be driven by the lifting motor to be adjusted up and down, and when the height of the product changes, the sealing center line can be correspondingly adjusted to the center line of the product in a matched mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing and cutting packaging machines, and particularly relates to a linkage sealing mechanism. Background Art

[0002] The sealing and cutting machine is a fully automatic unmanned packaging machine, which is widely used in the assembly line of mass production packaging. It has high working efficiency and automatic film sealing and cutting. It can be used in conjunction with the automated packaging assembly line and is the first choice for product sealing and heat shrink packaging.

[0003] As attached Figure 1 The existing sealing mechanism A shown is that the upper and lower cylinders independently drive the movement of the upper and lower tool holders to achieve the sealing purpose. This structure brings two problems. First, the number of components is increased, which increases the failure point. Second, the positions of the upper and lower cylinders are fixed, resulting in no linkage between the upper and lower tool holders. When the height of the product changes, the sealing center line cannot be adjusted to the center line of the product, resulting in a significant impact on the aesthetics of the sealing and the packaging effect. Utility Model Content

[0004] The purpose of the utility model is to provide a linkage sealing mechanism to solve the problems raised in the above background technology.

[0005] In view of this, the utility model provides a linkage sealing mechanism, including a heat-sealing mechanism that can move up and down as a whole, the heat-sealing mechanism includes an upper sealing and cutting component and a lower sealing and cutting component that are linked and arranged up and down, a linkage component is arranged between the upper sealing and cutting component and the lower sealing and cutting component, when the upper sealing and cutting component moves up and down, the linkage component synchronously drives the lower sealing and cutting component to move up and down to cooperate with the upper sealing and cutting component to construct a sealing and cutting action.

[0006] A further implementation scheme of the utility model is that the linkage sealing mechanism further comprises a fixing frame and a guide rail, the fixing frame is vertically arranged, the guide rail is arranged on the fixing frame, and the upper sealing and cutting assembly and the lower sealing and cutting assembly are slidably arranged on the guide rail.

[0007] A further implementation scheme of the utility model is that the upper sealing and cutting assembly includes an upper blade plate, a sealing and cutting cylinder and a support frame, the support frame is fixed between the upper ends of the fixed frames, the upper blade plate slides on the guide rail, the sealing and cutting cylinder is arranged on the support frame and the output end at the lower end is fixedly connected to the middle of the upper part of the upper blade plate.

[0008] A further implementation scheme of the utility model is that the lower sealing and cutting assembly includes a lower blade plate, the lower blade plate slides on the guide rail and corresponds to the lower side of the upper blade plate, and a linkage assembly is connected between the upper blade plate and the lower blade plate.

[0009] A further implementation scheme of the utility model is that the linkage assembly includes an upper pull rod, a torque arm and a lower pull rod, one end of the upper pull rod is fixed below the outer side of the upper blade plate, one end of the torque arm is hinged to the other end of the upper pull rod, the lower end of the lower pull rod is hinged to the outer side of the lower blade plate, and the upper end of the lower pull rod is hinged to the other end of the torque arm.

[0010] A further implementation scheme of the utility model is that the linkage sealing mechanism further includes a lifting component, and the lifting component is arranged on the upper side of the heat sealing mechanism to drive the heat sealing mechanism to move up and down as a whole.

[0011] A further implementation scheme of the utility model is that the lifting assembly includes a fixed plate, a lifting motor, a screw rod, a chain and a sprocket, the fixed plate is located on the upper side of the support frame, and the screw rod is rotatably connected to the fixed plate, the screw rod and the support frame are transmission connected, the sprocket is fixed to the upper end of the screw rod, the lifting motor is fixed on the fixed plate, the chain is transmission connected between the sprockets, and the lifting motor and the chain are drivingly connected.

[0012] The beneficial effects of the utility model are:

[0013] The sealing mechanism is divided into an upper sealing and cutting component and a lower sealing and cutting component, and the upper sealing and cutting component and the lower sealing and cutting component are connected by a linkage component and can move up and down on a fixed frame. Driven by the sealing and cutting cylinder, the upper pull rod moves up and down through the coordinated action of the torque arm and the lower pull rod, thereby pulling the lower blade plate and the upper blade plate to move up and down in linkage, so that the sealing position height can be adjusted, and the sealing mechanism as a whole can also be driven by the lifting motor to be adjusted up and down. When the product height changes, the sealing center line can be adaptively adjusted to the product center line, thereby ensuring the sealing effect and aesthetics, while also reducing the introduction of driving components and reducing failure points. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the sealing mechanism of the prior art;

[0015] Figure 2 The structure diagram of the linkage sealing mechanism of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 3 The structure diagram of the linkage sealing mechanism of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0018] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0020] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0021] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0022] The present embodiment provides a linkage sealing mechanism, including a heat sealing mechanism that can move up and down as a whole, and the heat sealing mechanism includes an upper sealing and cutting component 1 and a lower sealing and cutting component 2 that are linked and arranged up and down.

[0023] like Figure 2 The linkage sealing mechanism also includes a fixed frame 3 and a guide rail 4. The fixed frame 3 is vertically arranged, and the guide rail 4 is arranged on the fixed frame 3. The upper sealing and cutting assembly 1 and the lower sealing and cutting assembly 2 are slidably arranged on the guide rail 4, that is, the upper sealing and cutting assembly 1 and the lower sealing and cutting assembly 2 can slide up and down on the guide rail 4, so that different products can be sealed at different heights.

[0024] The biggest difference from the prior art is that the existing upper and lower tool holders are driven by their own cylinders without a linkage design, which leads to poor synergy, inaccurate sealing position, multiple fault points, and inability to adjust the sealing centerline to the centerline when the product height changes. In this regard, the present embodiment is provided with a linkage component 5 between the upper sealing and cutting component 1 and the lower sealing and cutting component 2. When the upper sealing and cutting component 1 moves up and down, the linkage component 5 synchronously drives the lower sealing and cutting component 2 to move up and down to cooperate with the upper sealing and cutting component 1 to construct a sealing and cutting action. The linkage component 5 can improve the synergy between the upper sealing and cutting component 1 and the lower sealing and cutting component 2.

[0025] In this embodiment, in detail, Figure 2 The upper sealing and cutting assembly 1 includes an upper blade plate 10, a sealing and cutting cylinder 11 and a support frame 12. The support frame 12 is fixed between the upper ends of the fixing frames 3. The upper blade plate 10 slides on the guide rail 4. The sealing and cutting cylinder 11 is arranged on the support frame 12 and the output end at the lower end is fixedly connected to the middle of the upper part of the upper blade plate 10. The upper blade plate 10 is driven up and down by the sealing and cutting cylinder 11, and the upper blade plate 10 is arranged horizontally.

[0026] In addition, specific Figure 2 The lower sealing and cutting component 2 includes a lower blade plate 20, which slides on the guide rail 4 and corresponds to the lower side of the upper blade plate 10. The linkage component 5 is connected between the upper blade plate 10 and the lower blade plate 20. Similarly, the lower blade plate 20 is parallel to the upper blade plate 10. The principle of combined heat sealing between the upper blade plate 10 and the lower blade plate 20 is the existing technology and will not be repeated in this embodiment.

[0027] Importantly, more specifically, Figure 2 The linkage assembly 5 is provided with two groups, which are symmetrically arranged between the upper sealing and cutting assembly 1 and the lower sealing and cutting assembly 2. The linkage assembly 5 includes an upper pull rod 50, a torque arm 51 and a lower pull rod 52. One end of the upper pull rod 50 is fixed at the lower outer side of the upper blade plate 10, one end of the torque arm 51 is hinged to the other end of the upper pull rod 50, the lower end of the lower pull rod 52 is hinged to the outer side of the lower blade plate 20, and the upper end of the lower pull rod 52 is hinged to the other end of the torque arm 51; when the sealing and cutting cylinder 11 pushes the upper pull rod 50 to descend, the upper blade plate 10 also descends, and the torque arm 51 and the lower pull rod 52 synchronously pull the lower blade plate 20 up and close to the upper blade plate 10 to achieve the bite sealing action; otherwise, they move in opposite directions.

[0028] In addition, if Figure 3 The linkage sealing mechanism also includes a lifting assembly 6, which is arranged on the upper side of the heat sealing mechanism to drive the heat sealing mechanism to move up and down as a whole. Specifically, the lifting assembly 6 includes a fixed plate 60, a lifting motor 61, a screw rod 62, a chain 63 and a sprocket 64. The fixed plate 60 is located on the upper side of the support frame 12, and the screw rod 62 is rotatably connected to the fixed plate 60. The screw rod 62 is transmission-connected to the support frame 12, and the sprocket 64 is fixed to the upper end of the screw rod 62. The lifting motor 61 is fixed on the fixed plate 60, and the chain 63 is transmission-connected between the sprockets 64. The lifting motor 61 is driven and connected with the chain 63, and the work of the lifting motor 61 drives the screw rod 62 to rotate, which further drives the support frame 12 to move up and down, and drives the overall sealing mechanism to move up and down. The lower blade plate 20 and the upper blade plate 10 are linked, so that the sealing position height can be adjusted, and the sealing mechanism as a whole can also be driven up and down by the lifting motor 61. When the height of the product changes, the sealing center line can be adaptively adjusted to the product center line, which is compatible with the versatility of the sealing, ensures the sealing effect and aesthetics, and also reduces the introduction of driving components and reduces failure points.

[0029] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A linkage sealing mechanism, characterized in that: The heat sealing mechanism comprises an upper sealing and cutting assembly and a lower sealing and cutting assembly which are linked and arranged up and down, a linkage assembly is arranged between the upper sealing and cutting assembly and when the upper sealing and cutting assembly moves up and down, the linkage assembly synchronously drives the lower sealing and cutting assembly to move up and down to cooperate with the upper sealing and cutting assembly to construct a sealing and cutting action.

2. A linkage sealing mechanism according to claim 1, characterized in that: It also includes a fixing frame and a guide rail, wherein the fixing frame is vertically arranged, the guide rail is arranged on the fixing frame, and the upper sealing and cutting assembly and the lower sealing and cutting assembly are slidably arranged on the guide rail.

3. A linkage sealing mechanism according to claim 2, characterized in that: The upper sealing and cutting assembly includes an upper blade plate, a sealing and cutting cylinder and a support frame. The support frame is fixed between the upper ends of the fixing frames. The upper blade plate slides on the guide rail. The sealing and cutting cylinder is arranged on the support frame and the output end at the lower end is fixedly connected to the middle of the upper part of the upper blade plate.

4. A linkage sealing mechanism according to claim 3, characterized in that: The lower sealing and cutting assembly comprises a lower blade plate, which slides on the guide rail and corresponds to the lower side of the upper blade plate, and a linkage assembly is connected between the upper blade plate and the lower blade plate.

5. A linkage sealing mechanism according to claim 4, characterized in that: The linkage assembly includes an upper pull rod, a torque arm and a lower pull rod, one end of the upper pull rod is fixed below the outer side of the upper blade plate, one end of the torque arm is hinged to the other end of the upper pull rod, the lower end of the lower pull rod is hinged to the outer side of the lower blade plate, and the upper end of the lower pull rod is hinged to the other end of the torque arm.

6. A linkage sealing mechanism according to claim 5, characterized in that: It also includes a lifting component, which is arranged on the upper side of the heat sealing mechanism and is used to drive the heat sealing mechanism to move up and down as a whole.

7. A linkage sealing mechanism according to claim 6, characterized in that: The lifting assembly includes a fixed plate, a lifting motor, a screw rod, a chain and a sprocket. The fixed plate is located on the upper side of the support frame, and the screw rod is rotatably connected to the fixed plate. The screw rod is transmission-connected to the support frame, the sprocket is fixed to the upper end of the screw rod, the lifting motor is fixed to the fixed plate, the chain is transmission-connected between the sprockets, and the lifting motor and the chain are drivingly connected.

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