CN218929903U

CN218929903U - Right-angle film stretching mechanism

Info

Publication number: CN218929903U
Application number: CN202223315919.9U
Authority: CN
Inventors: 孙赟璞; 范丹鹰
Original assignee: Wuxi Yige Machinery Equipment Co ltd
Current assignee: Wuxi Yige Machinery Equipment Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-28
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to the technical field of film sleeving equipment, in particular to a right-angle film stretching mechanism. Comprising a stretching assembly disposed about the film; the stretching assembly comprises a base, wherein a stretching mechanism is arranged on the base in a sliding manner, and a film pulling mechanism is arranged on the stretching mechanism. When the film is stretched, the stretching mechanisms on the stretching assemblies at the four corners move towards the film on the respective bases, so that the stretching mechanisms can move into the film and then outwards, and the stretching mechanisms can contact with the inner side surfaces of the film. The four corners of the film are moved and stretched by the four-corner stretching mechanism, so that the film can be stretched to a specified shape. After the stretching is completed, the film pulling mechanism stretches the film downwards, and the film with the specified length is gathered.

Description

Right-angle film stretching mechanism

Technical Field

The utility model relates to the technical field of film sleeving equipment, in particular to a right-angle film stretching mechanism.

Background

In the production of large-volume articles such as foods, beverages, local products and ceramics, the process of coating, sealing, cutting and packaging the articles becomes one of important processes. At present, along with the acceleration of modern industrialization progress, when packing processes are carried out on cargoes on a production line, an automatic film sleeving machine can realize the function of rapid film sleeving, and the efficiency of the automatic film sleeving machine far exceeds the efficiency of manual packaging, so that the automatic film sleeving machine is widely and widely applied in the packaging field. The film stretching mechanism is one of important mechanisms in the film sleeving machine, and has the main function of stretching the film so that the film can be sleeved on a product. The utility model patent with the application number of CN202022213701.7 discloses a bag tidying and clamping device, and the bag tidying and clamping device has perfect functions, can realize the clamping and filling functions of a packaging bag, has the bag opening tidying function, and can be suitable for packaging bags with different forms, sizes and materials of clients through an adjustable mechanical design structure. However, this bag-sorting and holding device can only hold the bag, and cannot stretch the four corners of the bag, and cannot effectively sort and stretch the bag.

The above-described problems are a need in the art for a solution.

Disclosure of Invention

The utility model aims to provide a right-angle film stretching mechanism, so that films can be effectively stretched.

In order to solve the technical problems, the scheme provided by the utility model is as follows: a right angle film stretching apparatus comprising a stretching assembly disposed about a film; the stretching assembly comprises a base, wherein a stretching mechanism is arranged on the base in a sliding manner, and a film pulling mechanism is arranged on the stretching mechanism.

As a further improvement of the utility model, the expanding mechanism comprises a moving plate, an oil cylinder for driving the moving plate is arranged on the base, and an expanding plate is arranged on the moving plate.

As a further improvement of the utility model, the film pulling mechanism comprises a fixed plate arranged on the expanding mechanism, a sliding block is arranged on the fixed plate in a sliding manner, an air cylinder for driving the sliding block to move is arranged on the fixed plate, a motor is arranged on the sliding block, and the motor is in transmission connection with a roller.

As a further development of the utility model, the spreader plate is provided with rotatable auxiliary wheels.

As a further improvement of the utility model, the contact surface of the expanding plate and the film is an arc surface.

The utility model has the beneficial effects that:

the stretching device is reasonable and simple in structure and convenient to operate, when the film is stretched, the stretching mechanisms on the stretching assemblies at the four corners move towards the film on the respective bases, so that the stretching mechanisms can move into the film and then outwards, and the stretching mechanisms can contact with the inner side surface of the film. The four corners of the film are moved and stretched by the four-corner stretching mechanism, so that the film can be stretched to a specified shape. After the stretching is completed, the film pulling mechanism stretches the film downwards, and the film with the specified length is gathered.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of the expanding mechanism of the present utility model;

FIG. 3 is a schematic view of the film pulling mechanism of the present utility model;

fig. 4 is a schematic structural view of an embodiment of the present utility model.

Reference numerals: 1. a stretching assembly; 11. a base; 12. a expanding mechanism; 121. a moving plate; 122. an oil cylinder; 123. a spreader plate; 124. an auxiliary wheel; 13. a film pulling mechanism; 131. a fixing plate; 132. a slide block; 133. a cylinder; 134. a motor; 135. and a roller.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Referring to fig. 1, in an embodiment of the present utility model, the stretching assembly 1 is installed on the film threading machine below the film feeding, and the stretching assembly 1 is installed at four corners of the film, so that the stretching assembly 1 can stretch the four corners of the film. The stretching assembly 1 includes a base 11, a movable stretching mechanism 12 is mounted on the base 11, and then a film stretching mechanism 13 is mounted on the stretching mechanism 12. When stretching the film, the stretching mechanisms 12 on the stretching assemblies 1 at the four corners move toward the film on the respective bases 11 so that the stretching mechanisms 12 can move to the inside of the film and then move outward so that the stretching mechanisms 12 can contact the inner side surfaces of the film. The four corners of the film are moved and stretched by the four-corner stretching mechanism 12 so that the film can be stretched to a specified shape. After the stretching is completed, the film stretching mechanism 13 stretches the film downward, and gathers the film of a specified length.

As shown in fig. 2, the expanding mechanism 12 includes a moving plate 121, an oil cylinder 122 for driving the moving plate 121 is provided on the base 11, and an expanding plate 123 is provided on the moving plate 121. The cylinder 122 controls the moving plate 121 to move toward the film on the base 11 so that the expansion plate 123 contacts the inner side surface of the film, and then the cylinder 122 controls the moving plate 121 to move reversely to stretch the film to a proper tension.

As shown in fig. 3, the film pulling mechanism 13 includes a fixing plate 131 disposed on the expanding mechanism 12, a sliding block 132 is slidably disposed on the fixing plate 131, an air cylinder 133 driving the sliding block 132 to move is disposed on the fixing plate 131, a motor 134 is disposed on the sliding block 132, and the motor 134 is in transmission connection with a roller 135. When the film is stretched to a proper tension by the supporting mechanism 12, the air cylinder 133 drives the sliding block 134 to move towards the film, so that the roller 135 is attached to the outer side surface of the film, and the motor 134 drives the roller 135 to rotate, so that the film is driven to move along with the roller to fold the film with a specified length.

As shown in fig. 2, the expanding plate 123 is provided with a rotatable auxiliary wheel 124, and the auxiliary wheel 124 cooperates with the roller 135, so that the film can move more smoothly when the roller 135 rotates.

As shown in fig. 2, the contact surface between the expansion plate 123 and the film is an arc surface, and the contact surface between the expansion plate 123 and the inner surface of the film can be flattened even more when the film is stretched.

As shown in fig. 4, in actual operation, the right-angle film stretching mechanism is mounted on the laminator so that the right-angle film stretching mechanism can move up and down on the laminator. After the top film is conveyed to a specified position, the oil cylinder 122 controls the moving plate 121 to move towards the film, the right-angle film stretching mechanism ascends a certain distance on the film sleeving machine, so that the expanding plate 123 contacts with the inner side surface of the film, and then the oil cylinder 122 controls the moving plate 121 to move reversely to stretch the film to a proper tension. The cylinder 133 drives the slider 134 to move towards the film, so that the roller 135 is attached to the outer side surface of the film, and the motor 134 drives the roller 135 to rotate, so that the film is driven to move along with the roller, and the film with the specified length is folded. And then the right-angle film stretching mechanism descends on the film sleeving machine to sleeve the film on the product.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or groups thereof.

The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

The terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" should be construed broadly, as if they were fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims

1. A right angle film stretching mechanism, characterized by comprising a stretching assembly (1), wherein the stretching assembly (1) is arranged around a film; the stretching assembly (1) comprises a base (11), wherein a stretching mechanism (12) is arranged on the base (11) in a sliding mode, and a film stretching mechanism (13) is arranged on the stretching mechanism (12).

2. A right angle film stretching mechanism as claimed in claim 1, wherein said stretching mechanism (12) comprises a moving plate (121), said base (11) is provided with an oil cylinder (122) for driving said moving plate (121), and said moving plate (121) is provided with a stretching plate (123).

3. The right-angle film stretching mechanism as claimed in claim 1, wherein the film stretching mechanism (13) comprises a fixed plate (131) arranged on the expanding mechanism (12), a sliding block (132) is slidably arranged on the fixed plate (131), an air cylinder (133) for driving the sliding block (132) to move is arranged on the fixed plate (131), a motor (134) is arranged on the sliding block (132), and a roller (135) is connected with the motor (134) in a transmission manner.

4. A right angle film stretching mechanism as claimed in claim 2, wherein said spreader plate (123) is provided with rotatable auxiliary wheels (124).

5. A right angle film stretching mechanism as claimed in claim 2, wherein the contact surface of said expansion plate (123) with the film is an arc surface.