Film placing and pulling device for packaging machine

Abstract

Compared with the prior art, the film placing and film drawing device of the packaging machine disclosed in the present application comprises: a main film drawing roller installed on the film drawing frame and connected to a driving motor; a swing seat installed on the film drawing frame and movable relative to the film drawing frame; an auxiliary film drawing roller installed on the swing seat; the auxiliary film drawing roller has a first state of jointly transmitting the packaging film with the main film drawing roller through gear meshing, and a second state of being separated from the main film drawing roller; a state control device for controlling the auxiliary film drawing roller to switch between the first state and the second state. Compared with the prior art, it can provide film drawing power during normal operation, and when the packaging film needs to be replaced, it makes the placement of the new packaging film simpler and more convenient. After the new packaging film is placed, it can continue to transmit the film drawing power, which significantly improves the working efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of material packaging, and more specifically, to a film placing and pulling device for a packaging machine. Background Art

[0002] As people's living standards continue to improve, there are certain requirements for the appearance of material packaging. In order to promote their own products, they will strive to make the outer packaging of their products more beautiful and more upscale. Packaging film is often seen on the outer packaging of many electronic products, food, cosmetics, medical supplies, etc. to play a role in moisture-proof, scratch-proof or aesthetics.

[0003] In the prior art, the film placing and pulling device of the packaging machine can provide the power required for film pulling and realize the transportation of the packaging film. However, when the packaging film needs to be replaced, it is difficult to conveniently place the new packaging film and continue the film pulling operation after the new packaging film is placed.

[0004] Therefore, how to provide a film placing and pulling device for a packaging machine, which can provide film pulling power during normal operation, make the placement of the new packaging film simpler and more convenient when the packaging film needs to be replaced, and continue to transmit the film pulling power after the new packaging film is placed, has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a film placing and pulling device for a packaging machine, which can provide film pulling power during normal operation. When the packaging film needs to be replaced, it makes the placement of the new packaging film simpler and more convenient. After the new packaging film is placed, it can continue to transmit the film pulling power, thereby significantly improving working efficiency.

[0006] The technical solutions provided by this application are as follows:

[0007] The present application provides a film placing and drawing device for a packaging machine, comprising: a main film drawing roller installed on a film drawing frame and connected to a driving motor; a swing seat installed on the film drawing frame and movable relative to the film drawing frame; an auxiliary film drawing roller installed on the swing seat; the auxiliary film drawing roller having a first state in which the auxiliary film drawing roller and the main film drawing roller are engaged with each other through gears to jointly convey the packaging film, and a second state in which the auxiliary film drawing roller is separated from the main film drawing roller; and a state control device for controlling the auxiliary film drawing roller to switch between the first state and the second state.

[0008] Furthermore, in a preferred embodiment of the present invention, the auxiliary film-drawing roller comprises: a cylinder body; and a film-drawing roller cover sleeved on the cylinder body, and the number of the film-drawing roller covers is at least two.

[0009] Furthermore, in a preferred embodiment of the present invention, the swing seat is installed on the film-drawing frame in the following manner: a sliding bearing is installed on the swing seat, and the swing seat is connected to the film-drawing frame by screws.

[0010] Furthermore, in a preferred embodiment of the present invention, the state control device includes: an eccentric sleeve coupling installed on a film-drawing machine frame; an eccentric shaft sleeve installed on the eccentric sleeve coupling, and a swing handle connected to the eccentric sleeve coupling; the eccentric shaft sleeve is installed inside the swing seat; the swing handle triggers the eccentric sleeve coupling to rotate, thereby driving the swing seat to move by driving the eccentric shaft sleeve to move.

[0011] Furthermore, in a preferred embodiment of the present invention, the eccentric sleeve coupling is connected to the eccentric sleeve via a key.

[0012] Furthermore, in a preferred embodiment of the present invention, the eccentric sleeve coupling is installed on the film-drawing machine frame in the following manner: the outermost end of the eccentric sleeve coupling is sleeved with the film-drawing machine frame via an eccentric shaft directional slider.

[0013] Furthermore, in a preferred embodiment of the present invention, the film placing and pulling device of the packaging machine further comprises: a pressure regulating mechanism for stabilizing the eccentric sleeve.

[0014] Furthermore, in a preferred embodiment of the present invention, the pressure regulating mechanism includes: a spring arranged in the swing seat; a sleeve push rod arranged in the swing seat and cooperating with the spring; a spring adjusting nut arranged on the outside of the swing seat; the spring adjusting nut is used to control the pressure of the sleeve push rod on the eccentric sleeve.

[0015] Furthermore, in a preferred embodiment of the present invention, the eccentric sleeve is provided with a positioning end surface structure that cooperates with the end of the sleeve push rod close to one end of the eccentric sleeve.

[0016] Furthermore, in a preferred embodiment of the present invention, the film-drawing roller cover is detachably mounted on the cylinder body, and the film-drawing roller covers are evenly spaced on the cylinder body.

[0017] Compared with the prior art, the present invention provides a film placing and drawing device for a packaging machine, which comprises: a main film drawing roller installed on a film drawing frame and connected to a driving motor; a swing seat installed on the film drawing frame and capable of moving relative to the film drawing frame; an auxiliary film drawing roller installed on the swing seat; the auxiliary film drawing roller is meshed with the main film drawing roller through gears, the main film drawing roller and the auxiliary film drawing roller work together to clamp the packaging film for transportation, the auxiliary film drawing roller has a first state of jointly transmitting the packaging film through gear meshing with the main film drawing roller, and a second state of being separated from the main film drawing roller; a state control device for controlling the auxiliary film drawing roller to switch between the first state and the second state. Compared with the prior art, it can provide film drawing power during normal operation, and when the packaging film needs to be replaced, it makes the placement of the new packaging film simpler and more convenient, and after the new packaging film is placed, it can continue to transmit the film drawing power, which significantly improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional schematic diagram of a film placing and pulling device for a packaging machine provided in an embodiment of the present invention;

[0020] Figure 2 A partial front cross-sectional view of a film placing and pulling device for a packaging machine provided by an embodiment of the present invention;

[0021] Figure 3 for Figure 2 Left view of;

[0022] Figure 4 for Figure 3 A partial cross-sectional view of .

[0023] Description of reference numerals:

[0024] Main film-drawing roller 1; film-drawing frame 2; swing seat 3; auxiliary film-drawing roller 4; cylinder 401; film-drawing roller sleeve 402; eccentric sleeve coupling 5; eccentric shaft sleeve 6; positioning end surface structure 601; swing handle 7; pressure adjustment mechanism 8; spring 801; shaft sleeve push rod 802; spring adjustment nut 803; sliding bearing 9; drive motor 10; eccentric shaft directional slider 11. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0026] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0029] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0030] Please Figures 1 to 4As shown, the film placing and drawing device of the packaging machine provided in the embodiment of the present application includes: a main film drawing roller 1 installed on the film drawing frame 2 and connected to the driving motor 10; a swing seat 3 installed on the film drawing frame 2 and movable relative to the film drawing frame 2; an auxiliary film drawing roller 4 installed on the swing seat 3; the auxiliary film drawing roller 4 has a first state in which it transmits the packaging film together with the main film drawing roller 1 through gear meshing, and a second state in which it is separated from the main film drawing roller 1; a state control device for controlling the auxiliary film drawing roller 4 to switch between the first state and the second state.

[0031] The embodiment of the present invention provides a film placing and drawing device for a packaging machine, specifically comprising: a main film drawing roller 1 installed on a film drawing frame 2 and connected to a driving motor; a swing seat 3 installed on the film drawing frame 2 and capable of moving relative to the film drawing frame 2; an auxiliary film drawing roller 4 installed on the swing seat 3; the auxiliary film drawing roller 4 is meshed with the main film drawing roller 1 through gears, the main film drawing roller 1 and the auxiliary film drawing roller 4 work together to clamp the packaging film for transportation, the auxiliary film drawing roller 4 has a first state of jointly conveying the packaging film through gear meshing with the main film drawing roller 1, and a second state of being separated from the main film drawing roller 1; a state control device for controlling the auxiliary film drawing roller 4 to switch between the first state and the second state. Compared with the prior art, it can provide film drawing power during normal operation, and when the packaging film needs to be replaced, it makes the placement of the new packaging film simpler and more convenient, and after the new packaging film is placed, it can continue to transmit the film drawing power, which significantly improves the working efficiency.

[0032] Specifically, in the embodiment of the present invention, the auxiliary film-drawing roller 4 includes: a cylinder 401; a film-drawing roller cover 402 sleeved on the cylinder 401, and the film-drawing roller cover 402 is at least two. More specifically, the number of the film-drawing roller covers 402 is 8 to 12, and the outer surface of the film-drawing roller cover 402 is provided with anti-slip grooves. The film-drawing roller cover 402 can be fixed at any position on the auxiliary film-drawing roller 4 by screws and rotate with the auxiliary film-drawing roller 4, which helps to improve the stability of packaging film transportation.

[0033] Specifically, in the embodiment of the present invention, the swing seat 3 is installed on the film-drawing frame 2 in the following manner: a sliding bearing 9 is installed on the swing seat 3, and the swing seat 3 is connected to the film-drawing frame 2 by screws.

[0034] Specifically, in an embodiment of the present invention, the state control device includes: an eccentric sleeve coupling 5 installed on the film drawing machine frame 2; an eccentric shaft sleeve 6 installed on the eccentric sleeve coupling 5, and a swing handle 7 connected to the eccentric sleeve coupling 5; the eccentric shaft sleeve 6 is installed inside the swing seat 3; the swing handle 7 triggers the eccentric sleeve coupling 5 to rotate, and drives the swing seat 3 to move by driving the eccentric shaft sleeve 6 to move.

[0035] Specifically, in the embodiment of the present invention, the eccentric sleeve coupling 5 is connected to the eccentric shaft sleeve 6 via a key.

[0036] Specifically, in the embodiment of the present invention, the eccentric sleeve coupling 5 is installed on the film drawing frame 2 in the following manner: the outermost end of the eccentric sleeve coupling 5 is sleeved with the film drawing frame 2 via an eccentric shaft directional slider 11 .

[0037] Specifically, in the embodiment of the present invention, the film placing and pulling device of the packaging machine further includes: a pressure regulating mechanism 8 for stabilizing the eccentric sleeve 6 .

[0038] Specifically, in an embodiment of the present invention, the pressure adjustment mechanism 8 includes: a spring 801 arranged in the swing seat 3; a sleeve push rod 802 arranged in the swing seat 3 and cooperating with the spring 801; a spring adjustment nut 803 arranged on the outside of the swing seat 3; the spring adjustment nut 803 is used to control the pressure of the sleeve push rod 802 on the eccentric sleeve 6.

[0039] Specifically, in the embodiment of the present invention, the eccentric sleeve 6 is provided with a positioning end surface structure 601 that cooperates with the end of the sleeve push rod 802 close to one end of the eccentric sleeve 6 .

[0040] Specifically, in the embodiment of the present invention, the film-drawing roller cover 402 is detachably mounted on the cylinder 401 , and the film-drawing roller cover 402 is evenly spaced on the cylinder 401 .

[0041] To be more specific, an embodiment of the present invention provides a film placing and pulling device for a packaging machine. The device adopts an eccentric structure design. When working normally, the device can provide film pulling power. When the packaging film needs to be replaced, the eccentric structure makes the placement of the new packaging film simpler and more convenient. After the new packaging film is placed, the device is restored to continue transmitting the film pulling power. Specifically, it includes: a main film-drawing roller 1 and its transmission mechanism, an eccentric sleeve coupling 5, a swing seat 3, an eccentric shaft sleeve 6, and a swing handle 7, wherein a driving motor controls the rotation of the main film-drawing roller 1, and the main film-drawing roller 1 drives the auxiliary film-drawing roller 4 to rotate through gear meshing, and the packaging film is clamped between the main film-drawing roller 1 and the auxiliary film-drawing roller 4 for transportation, and a plurality of film-drawing roller sleeves 402 are fitted on the auxiliary film-drawing roller 4, and the film-drawing roller sleeves 402 can be fixed at any position on the auxiliary film-drawing roller 4 by screws so as to rotate with the auxiliary film-drawing roller 4, so that the packaging film transportation is more stable, and the auxiliary film-drawing roller 4 and the eccentric sleeve coupling 5 are installed at the diagonal position of the swing seat 3, and the eccentric sleeve coupling 5 is connected to the eccentric shaft sleeve 6 by a key, and the outermost end of the eccentric sleeve coupling 5 is connected to the film-drawing frame by an eccentric shaft directional slider. The swing seat 3 is fitted with a sliding bearing 9 connected to the film drawing frame by a screw, and the swing seat 3 is equipped with an eccentric sleeve 6 push rod that cooperates with the spring 801. The pressure of the eccentric sleeve 6 push rod on the eccentric sleeve 6 can be controlled by adjusting the spring adjustment nut 803 on the outside of the swing seat 3. When the swing handle 7 on the eccentric sleeve coupling 5 is pulled to make the film drawing roller and the auxiliary film drawing roller 4 just mesh, a cutting plane on the eccentric sleeve 6 is transferred to the position of the eccentric sleeve 6 push rod. When the swing handle 7 on the eccentric sleeve coupling 5 is pulled to make the film drawing roller and the auxiliary film drawing roller 4 separate to a certain height, another cutting plane on the eccentric sleeve 6 is transferred to the position of the eccentric sleeve 6 push rod, and the relative position of the auxiliary film drawing roller 4 is kept stable by the stability of the surface-to-surface contact. Compared with the prior art, it can provide film drawing power during normal operation, and when the packaging film needs to be replaced, it makes the placement of the new packaging film simpler and more convenient. After the new packaging film is placed, it can continue to transmit the film drawing power, which significantly improves the working efficiency.

[0042] It should be noted that the terms "length", "width", "up", "down", "front", "back", "left", "right", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. involved in the embodiments of the present invention indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A film placing and pulling device for a packaging machine, characterized in that: include: A main film-drawing roller installed on the film-drawing frame and connected to the driving motor; A swing seat installed on the film-drawing frame and capable of moving relative to the film-drawing frame; A secondary film-drawing roller installed on the swing seat; The secondary film-drawing roller has a first state in which the secondary film-drawing roller and the primary film-drawing roller are meshed with each other through gears to jointly convey the packaging film, and a second state in which the secondary film-drawing roller is separated from the primary film-drawing roller; A state control device for controlling the secondary film-drawing roller to switch between a first state and a second state; The swing seat is installed on the film-drawing frame specifically: a sliding bearing is installed on the swing seat, and the swing seat is connected to the film-drawing frame by screws; The state control device comprises: an eccentric sleeve coupling installed on the film drawing machine frame; an eccentric shaft sleeve installed on the eccentric sleeve coupling, and a swing handle connected to the eccentric sleeve coupling; the eccentric shaft sleeve is installed inside the swing seat; the swing handle triggers the eccentric sleeve coupling to rotate, and drives the swing seat to move by driving the eccentric shaft sleeve to move; The eccentric sleeve coupling is connected to the eccentric sleeve via a key; The eccentric sleeve coupling is installed on the film-drawing machine frame in the following manner: the outermost end of the eccentric sleeve coupling is sleeved with the film-drawing machine frame via an eccentric shaft directional slider.

2. The film placing and pulling device of the packaging machine according to claim 1, characterized in that: The auxiliary film-drawing roller comprises: a cylinder body; and a film-drawing roller cover sleeved on the cylinder body, wherein the number of the film-drawing roller covers is at least two.

3. The film placing and pulling device of the packaging machine according to claim 1, characterized in that: The film placing and pulling device of the packaging machine also includes: a pressure regulating mechanism for stabilizing the eccentric sleeve.

4. The film placing and pulling device of the packaging machine according to claim 3, characterized in that: The pressure regulating mechanism comprises: a spring arranged in the swing seat; a sleeve push rod arranged in the swing seat and cooperating with the spring; a spring adjusting nut arranged on the outer side of the swing seat; the spring adjusting nut is used to control the pressure of the sleeve push rod on the eccentric sleeve.

5. The film placing and pulling device of the packaging machine according to claim 4, characterized in that: The eccentric sleeve is provided with a positioning end surface structure which cooperates with the end of the sleeve push rod close to one end of the eccentric sleeve.

6. The film placing and pulling device of the packaging machine according to claim 2, characterized in that: The film-drawing roller cover is detachably mounted on the cylinder body, and the film-drawing roller covers are evenly spaced on the cylinder body.

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