Basefilm tensioning device of food packaging machine

Abstract

The utility model provides a bottom film tensioning device of a food packaging machine, which belongs to the technical field of food packaging and comprises a mounting frame, a shell, a tensioning component, a driving component and a driving component. Wherein the tensioning assembly comprises adjusting frames, moving frames, tensioning wheels, a lifting frame, a driving rod, a reset spring, a guide wheel, a tensioning air cylinder and a deploying frame, the adjusting frames are fixedly arranged on the two sides of the inner wall of the mounting frame, and the moving frames are fixedly arranged on the two sides of the outer wall of the adjusting frames. Through the tensioning assembly, the two sets of tensioning wheels can conduct tensioning adjustment on the bottom film of the food packaging machine at the same time, the situation that in the follow-up tensioning process, due to the fact that stroke adjustment is limited, the tensioning degree adjusting difficulty is increased is avoided, and in the follow-up adjusting process, once the precision of a tensioning air cylinder is reduced, the tensioning degree is reduced is avoided. And a reset spring can be raised to reset the lifting frame and the tensioning wheel, so that breakage and unrecoverable deformation of the bottom film caused by excessive opening are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of food packaging, and in particular relates to a bottom film tensioning device for a food packaging machine. Background Art

[0002] Food packaging is a complex and delicate process that involves subjecting raw materials to a series of physical, chemical, and biological changes to produce food with a certain shelf life and specific uses. The following is a detailed analysis of food packaging: Definition: Food packaging refers to the process of subjecting raw materials to a series of processing, production, and treatment processes to produce food with a certain shelf life and specific uses. This process includes the selection, cleaning, cutting, mixing, heating, cooling, and packaging of raw materials. Classification: Food packaging can be divided into various types based on different raw materials and processing methods, such as grain milling, feed processing, vegetable oil and sugar processing, slaughtering and meat processing, aquatic product processing, and processing activities of foods such as vegetables, fruits, and nuts. In addition, it also includes condiment processing, candy product processing, beverage processing, dairy product processing, and other sub-sectors.

[0003] When tensioning the bottom film of a food packaging machine, the existing structure often fails to adjust the tension closely enough after the tensioning is completed. Due to long-term work, some parts may fail during the subsequent tensioning process due to damage or other problems, which may cause excessive tensioning and eventually cause the tensioning wheel to pull the bottom film excessively, eventually causing the bottom film to break or become irreversibly deformed, and ultimately requiring the staff to re-pull the bottom film to complete the winding. Utility Model Content

[0004] The purpose of the utility model is to provide a bottom film tensioning device for a food packaging machine, aiming to solve the problems raised by the background technology.

[0005] A bottom film tensioning device for a food packaging machine, comprising:

[0006] A mounting frame and a housing, wherein the housing is sleeved on an outer wall of the mounting frame;

[0007] The cam is fixedly mounted on the support frame, and the cam is secured to the support frame with an axially rotatable upper end and a lower end of the cam, wherein the cam is secured to the support frame with an axially rotatable lower end.

[0008] Furthermore, a storage shell is fixedly provided on one side of the inner wall of the mounting frame.

[0009] Furthermore, a groove is formed on one side of the outer wall of the shell to match the storage shell.

[0010] Furthermore, the outer wall of the tensioning wheel is covered with a rubber sleeve.

[0011] Furthermore, an operation port is provided on one side of the outer wall of the shell.

[0012] Furthermore, a snap-in groove is provided on the inner wall of the storage shell for installing a food packaging bottom film storage wheel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Through the tensioning assembly, two sets of tensioning wheels can be used to adjust the tension of the bottom film of the food packaging machine at the same time, avoiding the difficulty of adjusting the tension due to limited stroke adjustment during the subsequent tensioning process. In addition, in the subsequent adjustment process, once the accuracy of the tensioning cylinder decreases, the reset spring can be increased to reset the lifting frame and tensioning wheel to avoid excessive tension, which may cause the bottom film to break and irreversible deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 A perspective view of the drive rod of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the deployment rack of the present invention.

[0019] In the figure: 1. Mounting frame; 2. Outer shell; 3. Adjustment frame; 4. Storage shell; 5. Moving frame; 6. Tensioning wheel; 7. Lifting frame; 8. Driving rod; 9. Return spring; 10. Guide wheel; 11. Tensioning cylinder; 301. Deployment frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0023] See also Figure 1-3 , the technical solutions provided in this embodiment are as follows:

[0024] A bottom film tensioning device for a food packaging machine, comprising:

[0025] The mounting frame 1 and the housing 2, the housing 2 is sleeved on the outer wall of the mounting frame 1;

[0026] The tensioning assembly is arranged inside the mounting frame 1, wherein: the tensioning assembly includes an adjusting frame 3, a moving frame 5, a tensioning wheel 6, a lifting frame 7, a driving rod 8, a return spring 9, a guide wheel 10, a tensioning cylinder 11 and a deployment frame 301. The adjusting frame 3 is fixedly arranged on both sides of the inner wall of the mounting frame 1, the moving frame 5 is fixedly arranged on both sides of the outer wall of the adjusting frame 3, the tensioning wheel 6 is slidably embedded in the inner wall slot of the moving frame 5, the lifting frame 7 is sleeved on the outer walls of both ends of the tensioning wheel 6, the two ends of the driving rod 8 are respectively fixed at the center of the outer wall of the lifting frame 7, the two ends of the return spring 9 are respectively fixed on the outer wall of the lifting frame 7, the guide wheel 10 is rotatably inserted into the outer wall slot of the adjusting frame 3, the deployment frame 301 is fixedly arranged on both sides of the inner wall of the adjusting frame 3, the tensioning cylinder 11 is fixedly arranged on both sides of the outer wall of the deployment frame 301, and the output end of the tensioning cylinder 11 is fixedly arranged on the outer wall of the lifting frame 7.

[0027] In a specific embodiment of the present invention, through the tensioning assembly, two sets of tensioning wheels 6 can be used to adjust the tension of the bottom film of the food packaging machine at the same time, so as to avoid the difficulty of adjusting the tension degree due to the limited stroke adjustment in the subsequent tensioning process. In addition, in the subsequent adjustment process, once the accuracy of the tensioning cylinder 11 decreases, the reset spring 9 can be increased to reset the lifting frame 7 and the tensioning wheel 6 to avoid excessive opening, which may cause the bottom film to break and be irreversible. First, the storage wheel of the bottom film is rotated to be embedded in the clamping groove of the storage shell 4. Inside, the bottom film is wrapped around the outer wall of the guide wheel 10 and the tensioning wheel 6. When the tension needs to be adjusted, the tensioning cylinder 11 is started, so that the lifting frame 7 is limited by the driving rod 8 and the return spring 9, so that the tensioning wheel 6 is lifted and lowered with high precision inside the slot of the movable frame 5. Then, the tensioning wheel 6 is used to stretch the bottom film to complete the tension adjustment. When the tensioning cylinder 11 is damaged or over-extended, the return spring 9 is used to stretch the lifting frame 7 so that the tensioning wheels 6 are close to each other to complete the retraction of the tensioning wheel 6.

[0028] Specifically, a storage shell 4 is fixedly provided on one side of the inner wall of the mounting frame 1 .

[0029] In a specific embodiment of the present invention, the storage shell 4 can ensure the cleanliness of the bottom film.

[0030] Specifically, a groove is formed on one side of the outer wall of the outer shell 2 to match the receiving shell 4 .

[0031] In a specific embodiment of the present invention, a groove is opened on one side of the outer wall of the shell 2 to match the storage shell 4, so that the installation and removal of the bottom film storage wheel can be facilitated.

[0032] Specifically, the outer wall of the tensioning wheel 6 is covered with a rubber sleeve.

[0033] In a specific embodiment of the present invention, a rubber sleeve is provided on the outer wall of the tensioning wheel 6 to reduce the wear of the bottom membrane.

[0034] Specifically, an operation port is provided on one side of the outer wall of the housing 2 .

[0035] In a specific embodiment of the present invention, an operation port is provided on one side of the outer wall of the housing 2 to facilitate inspection and maintenance by staff.

[0036] Specifically, a snap-in groove is provided on the inner wall of the storage shell 4 for mounting a food packaging bottom film storage wheel.

[0037] In a specific embodiment of the present invention, a snap-in groove is provided on the inner wall of the storage shell 4 for mounting a food packaging bottom film storage wheel, which allows for convenient and stable installation and removal.

[0038] Working principle:

[0039] Through the tensioning assembly, two sets of tensioning wheels 6 can be used to adjust the tension of the bottom film of the food packaging machine at the same time, avoiding the difficulty of adjusting the tension due to limited stroke adjustment in the subsequent tensioning process. In addition, in the subsequent adjustment process, once the accuracy of the tensioning cylinder 11 decreases, the reset spring 9 can be increased to reset the lifting frame 7 and the tensioning wheel 6 to avoid excessive tensioning, which may cause the bottom film to break and irreversible deformation. First, the storage wheel of the bottom film is rotated and embedded in the inner part of the clamping groove of the storage shell 4, and the bottom film is Wrapped around the outer walls of the guide wheel 10 and the tensioning wheel 6, when tension adjustment is required, the tensioning cylinder 11 is started, so that the lifting frame 7 is limited by the driving rod 8 and the return spring 9, so that the tensioning wheel 6 can be lifted and lowered with high precision inside the slot of the movable frame 5, and then the tensioning wheel 6 is used to stretch the bottom film to complete the tension adjustment. When the tensioning cylinder 11 is damaged or over-extended, the return spring 9 is used to stretch the lifting frame 7, so that the tensioning wheels 6 are close to each other, completing the retraction of the tensioning wheel 6.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bottom film tensioning device for a food packaging machine, characterized in that: include, A mounting frame (1) and a housing (2), wherein the housing (2) is sleeved on an outer wall of the mounting frame (1); The tensioning assembly is arranged inside the mounting frame (1), wherein: the tensioning assembly includes an adjustment frame (3), a movable frame (5), a tensioning wheel (6), a lifting frame (7), a driving rod (8), a reset spring (9), a guide wheel (10), a tensioning cylinder (11) and a deployment frame (301); the adjustment frame (3) is fixedly arranged on both sides of the inner wall of the mounting frame (1); the movable frame (5) is fixedly arranged on both sides of the outer wall of the adjustment frame (3); the tensioning wheel (6) is slidably embedded in the inner wall slot of the movable frame (5); the lifting frame (7) is sleeved on the tensioning frame (11); At the outer walls of both ends of the tightening wheel (6), the two ends of the driving rod (8) are respectively fixedly arranged at the center of the outer wall of the lifting frame (7), the two ends of the reset spring (9) are respectively fixedly arranged at the outer wall of the lifting frame (7), the guide wheel (10) is rotatably inserted into the slot on the outer wall of the adjustment frame (3), the deployment frame (301) is fixedly arranged at both sides of the inner wall of the adjustment frame (3), the tensioning cylinder (11) is fixedly arranged at both sides of the outer wall of the deployment frame (301), and the output end of the tensioning cylinder (11) is fixedly arranged at the outer wall of the lifting frame (7).

2. A food packaging machine bottom film tensioning device according to claim 1, characterized in that: A storage shell (4) is fixedly provided on one side of the inner wall of the mounting frame (1).

3. The bottom film tensioning device of a food packaging machine according to claim 2, characterized in that: One side of the outer wall of the shell (2) is grooved to match the storage shell (4).

4. A food packaging machine bottom film tensioning device according to claim 3, characterized in that: The outer wall of the tensioning wheel (6) is provided with a rubber sleeve.

5. The bottom film tensioning device of a food packaging machine according to claim 4, characterized in that: An operating port is provided on one side of the outer wall of the housing (2).

6. The bottom film tensioning device of a food packaging machine according to claim 5, characterized in that: The inner wall of the storage shell (4) is provided with a snap-in groove for mounting a food packaging bottom film storage wheel.

Images