Thickness detection device applied to milk packaging bag paging machine

Abstract

The utility model discloses a thickness detection device applied to a milk packaging bag paging machine, which comprises a bracket assembly, a rotating rod component, a thickness detection wheel, a proximity switch and a control component, the distance between the bottom of the thickness detection wheel and the upper surface of a conveying belt in the milk packaging bag paging machine is the same as the thickness of a milk packaging bag to be detected; and the proximity switch is electrically connected with a control system in the milk packaging bag paging machine, so that the milk packaging bag paging machine stops paging work when the proximity switch is triggered to act. The milk packaging bag detection device is simple in structure, low in manufacturing cost, high in practicability and capable of detecting the paging and stacking conditions of a paging machine, and therefore the situation that stacked milk packaging bags enter an ink-jet printer to be subjected to jet printing work can be avoided, and the production quality of the milk packaging bags can be effectively improved. The feeding device is suitable for being installed on the milk packaging bag paging machine and used in cooperation with the milk packaging bag paging machine.

Description

Technical Field

[0001] The utility model relates to a thickness detection device, specifically a thickness detection device applied to a milk packaging bag paging machine. Background Art

[0002] During the production process of milk packaging bags by milk production enterprises, it is necessary to spray important information such as production date, shelf life, batch number, etc. of milk products on the outer side of the milk packaging bags. Specifically, during actual production, a stack of packaging bags first needs to be separated into individual packaging bags by a packaging bag paging machine, and then conveyed to the inkjet printer station in sequence by a conveyor belt for the inkjet printing work.

[0003] Currently, when the existing packaging bag paging machine pages a stack of packaging bags, the situation of overlapping sheets often occurs, that is, after paging, it is not a single milk packaging bag, but at least two milk packaging bags stacked together. The existing packaging paging machine usually cannot detect the above problem of overlapping sheets. Therefore, these stacked milk packaging bags will be directly conveyed to the inkjet printer station by the conveyor belt for inkjet printing. However, only the top milk packaging bag in these stacked milk packaging bags can be printed with important information such as production date, shelf life, batch number, etc. of milk products, and the remaining milk packaging bags will be missing the important information of milk products, which will seriously affect the production quality of milk packaging bags. Summary of the Invention

[0004] To solve the above deficiencies in the prior art, the utility model aims to provide a thickness detection device applied to a milk packaging bag paging machine to achieve the purpose of improving the production quality of milk packaging bags.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows: A thickness detection device applied to a milk packaging bag paging machine includes a bracket assembly fixedly arranged on the frame of the milk packaging bag paging machine, a rotating rod member rotatably arranged on the bracket assembly that can be positioned, a thickness detection wheel rotatably arranged at the front end of the rotating rod member, a proximity switch fixedly arranged on the bracket assembly, and a control member fixedly arranged at the rear end of the rotating rod member for closing or opening the proximity switch, wherein the control member is located above the proximity switch, and the distance between the bottom of the thickness detection wheel and the upper surface of the conveyor belt in the milk packaging bag paging machine is the same as the thickness of the milk packaging bag to be detected; the proximity switch is electrically connected to the control system in the milk packaging bag paging machine so that when the proximity switch is triggered to act, the milk packaging bag paging machine pauses the paging work.

[0006] As a limitation of the present utility model, the bracket assembly includes a first bracket and a second bracket arranged side by side; the first bracket includes two first vertical rods arranged oppositely and a first bracket cross bar fixed between the upper ends of the two first vertical rods; the second bracket includes two second vertical rods arranged oppositely and a second bracket cross bar fixed between the upper ends of the two second vertical rods; the height of the first bracket cross bar is less than the height of the second bracket cross bar.

[0007] As a further limitation of the present utility model, the rotating rod member includes a rotating cylinder rotatably arranged on the first bracket cross bar, an inclined rod fixed on the rotating cylinder, a fixed shaft fixed at the front end of the inclined rod, and a connecting cross bar fixed at the rear end of the inclined rod; the thickness detection wheel is rotatably arranged on the fixed shaft, the rear end of the inclined rod is fixedly connected to the second bracket cross bar through an elastic member capable of generating an upward pulling force, and the control member is fixedly connected to the connecting cross bar.

[0008] As a still further limitation of the present utility model, the control member includes a bolt member threadedly connected to the connecting cross bar, wherein the screw rod in the bolt member penetrates through the connecting cross bar and extends to the outside of the connecting cross bar.

[0009] Due to the adoption of the above technical solution, compared with the prior art, the beneficial effects obtained by the present utility model are as follows:

[0010] (1) The present utility model adopts a structural form combining a bracket assembly, a rotating rod member, a thickness detection wheel, a proximity switch, and a control member. The distance between the bottom of the thickness detection wheel and the upper surface of the conveyor belt in the milk packaging bag paging machine is the same as the thickness of the milk packaging bag to be detected. When a single milk packaging bag passes under the detection wheel, the rotating rod is in a static state. When there is a situation of overlapping sheets, the thickness detection wheel will be lifted, and the corresponding rotating rod member will rotate clockwise. At this time, the rear end of the rotating rod member drives the control member to move downward, and the downward movement of the control member can trigger the proximity switch to act, thereby enabling the control system in the milk packaging bag paging machine to control the milk packaging bag paging machine to pause the paging operation. After the staff removes the overlapping milk packaging bags, the paging and packaging machine can work normally. The present utility model can detect the situation of overlapping sheets in the paging machine, so it can avoid the situation that the overlapping milk packaging bags enter the inkjet printer for printing, and can effectively improve the production quality of milk packaging bags.

[0011] (2) The proximity switch in the present utility model is a standard component, the thickness detection wheel is a conventional wheel-shaped structure, the first bracket and the second bracket are both composed of cross bars and vertical rods, the rotating rod member is composed of a rotating cylinder, an inclined rod, a fixed shaft, and a connecting cross bar, and the control member adopts a bolt member. The above components are all conventional components and have low manufacturing costs, which can reduce the manufacturing cost of the present utility model and is beneficial to the popularization and use of the present utility model.

[0012] (3) The control member in the present utility model is a bolt member threadedly connected to the connecting cross bar. By rotating the bolt member, the distance between the bottom of the bolt member and the sensing end in the proximity switch can be adjusted. Thus, the present utility model can be adapted to detect milk packaging bags of different thicknesses, expanding the scope of application of the present utility model and effectively improving the practicability of the present utility model.

[0013] In summary, the present utility model has a simple structure, low manufacturing cost, and strong practicability. The present utility model can detect the situation of paging and stacking of milk packaging bags by the paging machine. Therefore, the situation where stacked milk packaging bags enter the inkjet printer for printing can be avoided, effectively improving the production quality of milk packaging bags. The present utility model is suitable for being installed on a milk packaging bag paging machine and used in cooperation with the milk packaging bag paging machine. Brief Description of the Drawings

[0014] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 2 It is a schematic diagram of the usage state of an embodiment of the present utility model when there is no stacking;

[0017] Figure 3 It is a schematic diagram of the usage state of an embodiment of the present utility model when stacking occurs;

[0018] In the figure: 1, the first vertical rod; 2, the mounting plate; 3, the first support cross bar; 4, the rotating cylinder; 5, the second vertical rod; 6, the second support cross bar; 7, the inclined rod; 8, the fixed shaft; 9, the thickness detection wheel; 10, the connecting cross bar; 11, the tension spring; 12, the bolt member; 13, the positioning nut; 14, the mounting seat member; 15, the proximity switch; 16, the milk packaging bag. Detailed Description of the Embodiment

[0019] The following describes the preferred embodiments of the present utility model with reference to the drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and understanding the present utility model, and are not used to limit the present utility model.

[0020] Embodiment An apparatus for detecting the thickness of a milk packaging bag applied to a milk packaging bag paging machine

[0021] As Figure 1As shown in the figure, this embodiment includes a bracket assembly fixedly installed on the frame of a milk packaging bag paging machine, a rotating rod member rotatably arranged on the bracket assembly and capable of positioning, a thickness detection wheel 9 rotatably arranged at the front end of the rotating rod member, a proximity switch 15 fixedly installed on the bracket assembly through a mounting seat member 14, and a control member fixedly installed at the rear end of the rotating rod member for closing or disconnecting the proximity switch 15. The proximity switch 15 is electrically connected to the control system in the milk packaging bag paging machine so that when the proximity switch 15 is triggered to act, the milk packaging bag paging machine pauses the paging operation. In this embodiment, the proximity switch 15 is a normally open proximity switch 15. When the control member triggers the proximity switch 15 to close, the control system can control the milk packaging bag paging machine to pause the paging operation. It should be noted in advance that this embodiment needs to be fixedly installed on the existing frame of the milk packaging bag paging machine, and this embodiment is located at the outlet position after the paging of the milk packaging bag paging machine to realize the detection of the thickness of the paged milk packaging bag 16.

[0022] The bracket assembly includes a first bracket and a second bracket arranged side by side. Specifically, in this embodiment, the first bracket includes two first vertical rods 1 arranged oppositely and a first bracket cross bar 3 fixedly installed between the upper ends of the two first vertical rods 1. The second bracket includes two second vertical rods 5 arranged oppositely and a second bracket cross bar 6 fixedly installed between the upper ends of the two second vertical rods 5. The height of the first bracket cross bar 3 is less than the height of the second bracket cross bar 6. A mounting plate 2 is fixedly installed at the bottom of each of the two first vertical rods 1 and the two second vertical rods 5, and each mounting plate 2 is fixedly installed at the corresponding position on the frame of the milk packaging bag paging machine through expansion bolts.

[0023] The rotating rod member includes a rotating cylinder 4 rotatably arranged on the first bracket cross bar 3, an inclined rod 7 fixedly installed on the outside of the rotating cylinder 4, a fixed shaft 8 fixedly installed at the front end of the inclined rod 7, and a connecting cross bar 10 fixedly installed at the rear end of the inclined rod 7. The height of the front end of the inclined rod 7 is lower than the height of the rear end of the inclined rod 7. The thickness detection wheel 9 is rotatably arranged on the fixed shaft 8. The rear end of the inclined rod 7 is fixedly connected to the second bracket cross bar 6 through an elastic member capable of generating an upward pulling force. The thickness detection wheel 9 is an existing rotating wheel, and the elastic member is a tension spring 11.

[0024] The control member is fixedly connected to the connecting cross bar 10. Specifically, in this embodiment, the control member includes a bolt member 12 threadedly connected to the connecting cross bar 10. The bolt member 12 needs to be fixed to the connecting cross bar 10 in cooperation with a positioning nut 13. The screw rod in the bolt member 12 penetrates through the connecting cross bar 10 and extends to the outside of the connecting cross bar 10. The bolt member 12 is located above the proximity switch 15. During use, it is necessary to adjust the distance between the bottom of the bolt member 12 and the sensing surface of the proximity switch 15 according to the actual situation so that when there is a stack of milk packaging bags, after the bolt member 12 moves downward, it can trigger the proximity switch 15 to close the proximity switch 15 and the control system controls the milk packaging bag paging machine to pause the paging operation. It should be emphasized that after this embodiment is installed on the frame of the milk packaging bag paging machine, the distance between the bottom of the thickness detection wheel 9 and the upper surface of the conveyor belt in the milk packaging bag paging machine should be the same as the thickness of the milk packaging bag 16 to be detected. Specifically, the control member cooperates with the tension spring 11 and the thickness detection wheel 9 so that the thickness detection wheel 9 can be positioned at a position where the distance between the bottom of the thickness detection wheel 9 and the upper surface of the conveyor belt in the milk packaging bag paging machine is the thickness of a milk packaging bag 16 to be detected.

[0025] The working principle of this embodiment is as follows: As Figure 2 shown, when there is no stack of milk packaging bags 16 to be detected or there is no milk packaging bag 16 to be detected, the tension spring 11 cooperates with the control member and the thickness detection wheel 9 to keep the rotating rod stationary. At this time, the distance between the bottom of the thickness detection wheel 9 and the upper surface of the conveyor belt in the milk packaging bag paging machine is the same as the thickness of the milk packaging bag 16 to be detected, and there is a certain distance between the bottom of the control member and the proximity switch 15. At this time, the proximity switch 15 is not triggered, and the milk packaging bag paging machine normally performs the paging operation.

[0026] As Figure 3 shown, when there is a stack of milk packaging bags 16 to be detected, the thickness detection wheel 9 is lifted. The lifting of the thickness detection wheel 9 will drive the rotating rod member to rotate clockwise. At this time, the position of the connecting cross bar 10 in the rotating rod member drops and drops to a position where it can trigger the proximity switch 15 to act. At this time, the proximity switch 15 acts and switches from the normally open state to the closed state. The proximity switch 15 can output a signal to stop paging to the control system in the milk packaging bag paging machine, and the control system controls the milk packaging bag paging machine to pause the paging operation. After the staff removes the stacked milk packaging bags 16, as Figure 2 shown, the control member will move to the initial state when there is no milk packaging bag 16 to be detected. At this time, there is a certain distance between the bottom of the control member and the proximity switch 15. At this time, the proximity switch 15 disconnects, and the control system controls the milk packaging bag paging machine to perform normal paging operations.

[0027] It should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A thickness detection device applied to a milk packaging bag paging machine, characterized in that: It includes a bracket assembly for being fixedly installed on the frame of a milk packaging bag paging machine, a rotating rod member rotatably arranged on the bracket assembly and capable of positioning, a thickness detection wheel rotatably arranged at the front end of the rotating rod member, a proximity switch fixedly installed on the bracket assembly, and a control member fixedly installed at the rear end of the rotating rod member for closing or disconnecting the proximity switch. The control member is located above the proximity switch, and the distance between the bottom of the thickness detection wheel and the upper surface of the conveyor belt in the milk packaging bag paging machine is the same as the thickness of the milk packaging bag to be detected. The proximity switch is electrically connected to the control system in the milk packaging bag paging machine so that when the proximity switch is triggered to act, the milk packaging bag paging machine pauses the paging operation.

2. The thickness detection device applied to the milk packaging bag paging machine according to claim 1, characterized in that: The bracket assembly includes a first bracket and a second bracket arranged side by side. The first bracket includes two first vertical rods arranged oppositely and a first bracket cross bar fixedly installed between the upper ends of the two first vertical rods. The second bracket includes two second vertical rods arranged oppositely and a second bracket cross bar fixedly installed between the upper ends of the two second vertical rods. The height of the first bracket cross bar is less than the height of the second bracket cross bar.

3. The thickness detection device applied to the milk packaging bag paging machine according to claim 2, wherein: The rotating rod member includes a rotating cylinder rotatably arranged on the first bracket cross bar, an inclined rod fixedly installed on the rotating cylinder, a fixed shaft fixedly installed at the front end of the inclined rod, and a connecting cross bar fixedly installed at the rear end of the inclined rod. The thickness detection wheel is rotatably arranged on the fixed shaft. The rear end of the inclined rod is fixedly connected to the second bracket cross bar through an elastic member capable of generating an upward pulling force, and the control member is fixedly connected to the connecting cross bar.

4. The thickness detection device applied to the milk packaging bag paging machine according to claim 3, characterized in that: The control member includes a bolt member threadedly connected to the connecting cross bar, wherein the screw rod in the bolt member penetrates through the connecting cross bar and extends to the outside of the connecting cross bar.

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