Film conveying length measuring device for film conveying of automatic packaging machine

Abstract

The utility model provides a film conveying length measuring device for film conveying of an automatic packaging machine, which comprises a supporting and assembling component, a film guide component, a locking bracket component, a transfer bearing component, a counting and measuring component and an elastic pressing component. The thin film can accurately pass through a measuring area in the conveying process, the measuring pressing wheel made of polyurethane can keep stable performance for a long time and is large in friction force, the thin film is not prone to slipping, the elastic pressing assembly ensures tight abutting between the measuring pressing wheel and the thin film, slipping of the thin film in the conveying process is effectively avoided, and the conveying efficiency is improved. Therefore, the measuring device has the advantages of high precision, high adaptability, simplicity and convenience in operation, high reliability, high integration level and the like, and the automation and intelligence level of a packaging production line can be effectively improved.

Description

Technical Field

[0001] The utility model relates to packaging equipment, in particular to a film length measuring device used for film conveying of an automatic packaging machine. Background Art

[0002] Patent document CN218088238U discloses a film length measuring device, which includes a cutting mechanism for cutting a film; a measuring mechanism for measuring the length of the film passing through the measuring mechanism, and the measuring mechanism is arranged adjacent to the cutting mechanism; the film is rolled onto a rewinding roller after passing through the cutting mechanism and the measuring mechanism; the measuring mechanism includes a roller, which is supported at the bottom of the film and can rotate with the movement of the film; a pressure wheel, which is arranged above the roller, the pressure wheel presses the film on the roller, and the pressure wheel rotates with the movement of the film; and a photoelectric sensor, which includes a transmitter and a receiver, and the transmitter and the receiver are respectively located on both sides of the pressure wheel; a plurality of through holes are provided on the pressure wheel for the light sent by the transmitter to pass through; the length of the film can be accurately detected through the signal change of the photoelectric sensor, thereby improving the accuracy of the length measurement. However, the pressure wheel and the photoelectric sensor of this measuring device adopt a fixed installation structure, which cannot be adjusted according to the changes of the film conveying mechanism, resulting in poor installation adaptability and affecting the measurement reliability. Therefore, it is necessary to optimize the structure of this measuring device to overcome the above defects. Utility Model Content

[0003] The utility model aims to provide a film length measuring device for film conveying of an automatic packaging machine, so as to enhance installation adaptability and measurement reliability.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A film length measuring device for film conveying of an automatic packaging machine, comprising:

[0006] A support assembly component, which is installed in the packaging machine through a connecting piece and has an installation space inside;

[0007] A film guide assembly, which is installed in the packaging machine through a rotating structure and corresponds to the position of the supporting assembly assembly, and can be rotated in the packaging machine, and the film guide assembly guides the conveying process of the film;

[0008] A locking bracket assembly, which is installed in the support assembly assembly through an adjustable structure, and the installation angle can be adjusted in the support assembly assembly, and the locking bracket assembly has an assembly space inside;

[0009] A transfer bearing assembly, which is mounted on the locking support assembly through a deflection structure and can be deflected on the support assembly;

[0010] The counting and measuring assembly is installed on the transfer bearing assembly and can deflect with the transfer bearing assembly. The film guide assembly cooperates with the counting and measuring assembly so that the film can pass between the counting and measuring assembly and the film guide assembly. The counting and measuring assembly measures the conveying length of the film.

[0011] The elastic pressing component is installed between the locking support component and the adapter bearing component. The elastic pressing component drives the adapter bearing component and the counting and measuring component to deflect toward the film guide component, so that the counting and measuring component is tightly fitted with the film on the film guide component to improve the measurement accuracy.

[0012] Specifically, the support assembly includes:

[0013] A supporting base plate, in which a connecting through hole is provided, and the supporting base plate can be installed in the packaging machine by connecting bolts adapted to the connecting through hole;

[0014] The assembly support plate is formed at the edge of the supporting seat plate and is bent toward the outer side of the supporting seat plate. An assembly through hole is opened inside the assembly support plate.

[0015] The film guide assembly includes:

[0016] The guide roller has bearings and shafts installed inside. Both ends of the shaft are installed in the packaging machine by screws. The guide roller rotates in the packaging machine through the bearings. A gap is left between the guide roller and the assembly support plate. The film in the packaging machine can pass around the outer wall of the guide roller, and the guide roller guides its conveying process.

[0017] The locking bracket assembly includes:

[0018] A support seat body, which is located between the support seat plate and the assembly support plate and corresponds to the position of the assembly through hole;

[0019] A supporting connecting rod, which is mounted on the supporting seat body and has a distal end extending in the direction of the guide supporting roller;

[0020] A locking bolt rod passes through the assembly through hole, and its middle part is screwed into the support seat body through a thread, and a support optical axis is formed at its end, and the support optical axis is exposed from the support seat body. The locking bolt rod locks the support seat body and the support connecting rod, so that the support connecting rod can be fixed after adjusting to a preset angle.

[0021] The transfer bearing assembly includes:

[0022] The bearing support plate is installed on the supporting optical axis and can be deflected on the supporting optical axis, and its end extends toward the guide support roller.

[0023] The counting measurement components include:

[0024] A counting code disk, which is mounted at the end of the bearing support plate and is electrically connected to the programmable logic controller through a circuit;

[0025] The measuring pressure wheel is installed on the counting code disk, and its outer wall is in contact with the film on the guide support roller. The film drives the measuring pressure wheel to rotate, so that the counting code disk measures its conveying length.

[0026] In one embodiment of the present invention, the counting code disk and the connection structure between the counting code disk and the programmable logic controller adopt the existing technology, so they are not described in detail.

[0027] In one embodiment of the utility model, the measuring pressure wheel is made of polyurethane, so that it can maintain stable performance during long-term, high-frequency rotation. Its friction is relatively large, so that the film is not easy to slip or malfunction. It has high tension and bending strength and can withstand greater external pressure and deformation. It can maintain stable performance even when rotating at high speed or bearing heavy loads.

[0028] The elastic pressing assembly includes:

[0029] A pressure-fixed tension spring is located between the support link and the load-bearing support plate. One end of the pressure-fixed tension spring is engaged with the support link, and the other end is engaged with the load-bearing support plate. The pressure-fixed tension spring applies elastic tension to the load-bearing support plate, driving the measuring pressure wheel to tightly fit against the film on the guide roller, thereby preventing the film from slipping during transportation and improving measurement accuracy.

[0030] The advantages of the utility model are:

[0031] The measuring device ensures that the film can accurately pass through the measuring area during the conveying process through the cooperation of the counting and measuring components and the film guiding components. The measuring pressure wheel made of polyurethane can maintain stable performance for a long time and has a large friction force, which makes the film not easy to slip. The elastic pressing component ensures the tight fit between the measuring pressure wheel and the film, effectively preventing the film from slipping during the conveying process and further improving the measurement accuracy. The locking support component in the device allows the installation angle to be adjusted in the supporting assembly component, which enables the measuring device to adapt to different installation environments and packaging machine specifications. The deflection structure of the transfer bearing component also increases the flexibility of the device, enabling it to adapt to different film conveying paths, so that the measuring device has the advantages of high precision, strong adaptability, easy operation, high reliability and high integration, and can effectively improve the automation and intelligence level of the packaging production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a film length measuring device for film conveying of an automatic packaging machine proposed by the utility model;

[0033] Figure 2 It is a schematic diagram of the side structure of the measuring device. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0035] like Figure 1 , Figure 2 As shown, the film length measuring device for film conveying of an automatic packaging machine proposed by the utility model comprises a supporting assembly component, a film guide component, a locking support component, a transfer bearing component, a counting and measuring component and an elastic pressing component. The supporting assembly component is installed in the packaging machine through a connecting piece, and has an installation space inside. The film guide component is installed in the packaging machine through a rotating structure and corresponds to the position of the supporting assembly component. It can rotate in the packaging machine, and the film guide component guides the conveying process of the film. The locking support component is installed in the supporting assembly component through an adjustable structure, and the installation angle can be adjusted in the supporting assembly component. It has an assembly space inside. The transfer bearing assembly is installed on the locking support assembly through the deflection structure and can be deflected on the support assembly. The counting and measuring assembly is installed on the transfer bearing assembly and can be deflected together with the transfer bearing assembly. The film guide assembly cooperates with the counting and measuring assembly so that the film can pass between the counting and measuring assembly and the film guide assembly. The counting and measuring assembly measures the conveying length of the film. The elastic pressing assembly is installed between the locking support assembly and the transfer bearing assembly. The elastic pressing assembly drives the transfer bearing assembly and the counting and measuring assembly to deflect toward the direction of the film guide assembly, so that the counting and measuring assembly is tightly in contact with the film on the film guide assembly to improve the measurement accuracy.

[0036] In this embodiment, the supporting assembly component includes a supporting seat plate 110 and an assembly support plate 120. A connecting through hole is opened in the supporting seat plate, and the assembly support plate can be installed in the packaging machine by connecting bolts adapted to the connecting through hole. The assembly support plate is formed at the edge of the supporting seat plate and bent toward the outside of the supporting seat plate, and an assembly through hole is opened inside it.

[0037] The film guide assembly includes a guide roller 200, a bearing and a shaft rod are installed inside the guide roller, and both ends of the shaft rod are installed in the packaging machine by screws. The guide roller rotates in the packaging machine through the bearing, and a gap is left between the guide roller and the assembly support plate. The film in the packaging machine can pass around the outer wall of the guide roller, and the guide roller guides its conveying process.

[0038] The locking support assembly includes a support seat body 310, a support connecting rod 320 and a locking bolt rod 330. The support seat body is located between the support seat plate and the assembly support plate and corresponds to the position of the assembly through hole. The support connecting rod is installed on the support seat body, and its end extends toward the guide roller. The locking bolt rod passes through the assembly through hole, and its middle part is screwed into the support seat body through a thread. A support optical axis is formed at its end, and the support optical axis is exposed from the support seat body. The support seat body and the support connecting rod are locked by the locking bolt rod, so that the support connecting rod can be fixed after being adjusted to a preset angle.

[0039] The transfer bearing assembly includes a bearing support plate 400, which is installed on the supporting optical axis and can be deflected on the supporting optical axis, and the end of the bearing support plate extends toward the guide support roller.

[0040] The counting and measuring assembly includes a counting code disc 510 and a measuring pressure wheel 520. The counting code disc is installed at the end of the bearing support plate and is electrically connected to the programmable logic controller through a circuit. The measuring pressure wheel is installed on the counting code disc, and its outer wall is in contact with the film on the guide support roller. The measuring pressure wheel is driven by the film to rotate, so that the counting code disc measures its conveying length.

[0041] In this embodiment, the counting code disk and the connection structure between the counting code disk and the programmable logic controller adopt the existing technology, so they are not described in detail.

[0042] In this embodiment, the measuring pressure wheel is made of polyurethane, so that it can maintain stable performance during long-term, high-frequency rotation. Its friction is relatively large, so that the film is not easy to slip or malfunction. It has high tension and bending strength and can withstand greater external pressure and deformation. It can maintain stable performance even when rotating at high speed or bearing heavy loads.

[0043] The elastic pressing component includes a pressing tension spring 600, which is located between the support connecting rod and the load-bearing support plate. One end of the pressing tension spring is engaged with the support connecting rod, and the other end is engaged with the load-bearing support plate. The pressing tension spring applies elastic tension to the load-bearing support plate, driving the measuring pressure wheel to tightly fit against the film on the guide roller, thereby preventing the film from slipping during transportation and improving the measurement accuracy.

[0044] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be 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 the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A film length measuring device for film conveying in an automatic packaging machine, characterized in that: include: A support assembly component, which is installed in the packaging machine through a connecting piece and has an installation space inside; A film guide assembly, which is installed in the packaging machine through a rotating structure and corresponds to the position of the supporting assembly assembly, and can be rotated in the packaging machine, and the film guide assembly guides the conveying process of the film; A locking bracket assembly, which is installed in the support assembly assembly through an adjustable structure, and the installation angle can be adjusted in the support assembly assembly, and the locking bracket assembly has an assembly space inside; A transfer bearing assembly, which is mounted on the locking support assembly through a deflection structure and can be deflected on the support assembly; The counting and measuring assembly is installed on the transfer bearing assembly and can deflect with the transfer bearing assembly. The film guide assembly cooperates with the counting and measuring assembly so that the film can pass between the counting and measuring assembly and the film guide assembly. The counting and measuring assembly measures the conveying length of the film. The elastic pressing component is installed between the locking support component and the transfer bearing component. The elastic pressing component drives the transfer bearing component and the counting and measuring component to deflect toward the film guide component, so that the counting and measuring component is tightly fitted with the film on the film guide component.

2. The film length measuring device for film conveying of an automatic packaging machine according to claim 1 is characterized in that: The support assembly includes: A supporting base plate, in which a connecting through hole is provided, and the supporting base plate can be installed in the packaging machine by connecting bolts adapted to the connecting through hole; The assembly support plate is formed at the edge of the supporting seat plate and is bent toward the outer side of the supporting seat plate. An assembly through hole is opened inside the assembly support plate.

3. The film length measuring device for film conveying of an automatic packaging machine according to claim 2 is characterized in that: The film guide assembly includes: A guide roller is provided with bearings and a shaft rod inside. Both ends of the shaft rod are respectively installed in the packaging machine by screws. The guide roller rotates in the packaging machine through the bearing. A gap is left between the guide roller and the assembly support plate. The film in the packaging machine can pass around the outer wall of the guide roller.

4. The film length measuring device for film conveying of an automatic packaging machine according to claim 3 is characterized in that: The locking bracket assembly includes: A support seat body, which is located between the support seat plate and the assembly support plate and corresponds to the position of the assembly through hole; A supporting connecting rod, which is mounted on the supporting seat body and has a distal end extending in the direction of the guide supporting roller; A locking bolt rod passes through the assembly through hole, the middle part of which is screwed into the support seat body through a thread, and a support optical axis is formed at its end, and the support optical axis is exposed from the support seat body. The support seat body and the support connecting rod are locked by the locking bolt rod.

5. The film length measuring device for film conveying of an automatic packaging machine according to claim 4 is characterized in that: The transfer bearing assembly includes: The bearing support plate is installed on the supporting optical axis and can be deflected on the supporting optical axis, and its end extends toward the guide support roller.

6. The film length measuring device for film conveying of an automatic packaging machine according to claim 5, characterized in that: The counting measurement components include: A counting code disk, which is mounted at the end of the bearing support plate and is electrically connected to the programmable logic controller through a circuit; The measuring pressure wheel is installed on the counting code disk, and its outer wall is in contact with the film on the guide support roller. The film drives the measuring pressure wheel to rotate, so that the counting code disk measures its conveying length.

7. The film length measuring device for film conveying of an automatic packaging machine according to claim 6, characterized in that: The elastic pressing assembly includes: A pressure-fixed tension spring is located between the support link and the bearing support plate, one end of which is engaged with the support link and the other end is engaged with the bearing support plate. The pressure-fixed tension spring applies elastic tension to the bearing support plate, driving the measuring pressure wheel to tightly fit against the film on the guide support roller.

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