Guardrail adjusting mechanism

Abstract

The utility model relates to a guardrail adjusting mechanism which is characterized in that the guardrail adjusting mechanism comprises a stepping motor arranged on a conveyor belt rack and a guardrail adjusting screw rod driven by the stepping motor to work, the guardrail adjusting screw rod is in threaded connection with a guardrail supporting rod installation seat, the guardrail supporting rod installation seat is provided with a guardrail supporting rod, and the guardrail supporting rod installation seat is provided with a guardrail. And the guardrail supporting rod is connected to one end part or two end parts of the telescopic guardrail. According to the working principle of the guardrail adjusting mechanism, rotation of the guardrail adjusting screw rod is achieved through work of the stepping motor, then the guardrail supporting rod installation base, the guardrail supporting rods and the guardrails are driven to move in the axial direction, adjustment of the distance between the guardrails is achieved, and the requirement for transportation limiting of cartons or rice bags of different sizes on a conveying belt is met.

Description

Technical Field

[0001] The utility model relates to a mechanism in rice bag packaging equipment, in particular to a guardrail adjusting mechanism. Background Art

[0002] Vacuum rice bags and cartons need to be protected by guardrails during the conveying process, otherwise they are prone to deviation, resulting in inconsistent posture during packing and leading to packing or stacking failures; the existing guardrail width is fixed on the conveyor and manually adjusted. Since customers' vacuum rice bags and cartons have a variety of specifications, manual adjustment is time-consuming and inefficient.

[0003] Although the Chinese patent "A carton separation and opening device, CN214649367U" was retrieved, it includes a carton conveyor belt, a frame and an upper baffle, an upper baffle driving mechanism, a lower baffle, a lower baffle driving mechanism and an opening mechanism arranged on the frame. The upper baffle driving mechanism drives the upper baffle to move downward to press the outermost carton on the carton conveyor belt to fall onto the lower baffle, and the lower baffle driving mechanism drives the lower baffle to move upward to lift the carton that falls on it; the opening mechanism includes a fixed large plate, a corrugated steel needle, The movable large plate and the expansion drive mechanism, the corrugated steel needles are arranged between the fixed large plate and the movable large plate. When the carton is in place on the lower baffle, the corrugated steel needles are inserted into the corrugated grooves of the two adjacent folded edges of the carton. The expansion drive mechanism is connected to the movable large plate to drive the movable large plate to rotate around the creases of the two adjacent folded edges of the carton to unfold the carton. This patent can automatically separate and expand the cartons one by one, and is convenient for connecting with the front-end and back-end equipment to realize automatic packaging line operation, but it cannot facilitate the adjustment of the carton or rice bag guardrail. Summary of the Invention

[0004] The purpose of the utility model is to provide a guardrail adjustment mechanism, which is reasonably designed and is conducive to convenient and efficient adjustment of the guardrails of a carton or rice bag.

[0005] The technical solution of the utility model is:

[0006] The utility model guardrail adjustment mechanism is characterized in that it includes a stepper motor arranged on a conveyor belt frame and a guardrail adjustment screw driven by the stepper motor, the guardrail adjustment screw is threadedly connected to a guardrail support rod mounting seat, the guardrail support rod mounting seat is provided with a guardrail support rod, and the guardrail support rod is connected to one end or both ends of a retractable guardrail.

[0007] Preferably, a guardrail adjustment guide rod is installed on the above-mentioned conveyor belt frame, and the guardrail support rod mounting seat is slidably connected to the guardrail adjustment guide rod.

[0008] Preferably, the above-mentioned guardrail adjustment mechanism is used on a carton conveying mechanism or a rice bag conveying mechanism; the conveyor belt frame includes a carton conveyor belt frame or a rice bag conveyor belt frame, and the stepper motor includes a first stepper motor applied on the carton conveying mechanism and a second stepper motor applied on the rice bag conveying mechanism; the guardrail adjustment screw includes a carton guardrail adjustment screw applied on the carton conveying mechanism and a rice bag guardrail adjustment screw applied on the rice bag conveying mechanism; the guardrail support rod mounting seat includes a carton guardrail support rod mounting seat applied on the carton conveying mechanism and a rice bag guardrail support rod mounting seat applied on the rice bag conveying mechanism; the retractable guardrail includes a retractable carton guardrail applied on the carton conveying mechanism and a retractable rice bag guardrail applied on the rice bag conveying mechanism.

[0009] Preferably, the above-mentioned carton conveying mechanism includes the first carton conveyor belt, the second carton conveyor belt and the third carton conveyor belt arranged adjacent to each other, and a hollow channel is provided in the middle of the first carton conveyor belt and the second carton conveyor belt for setting up the first chain conveying mechanism, and a hollow channel is provided in the middle of the third carton conveyor belt for setting up the second chain conveying mechanism, and the first chain conveying mechanism and the second chain conveying mechanism both include a driving sprocket, a passive sprocket and a chain wound around the driving sprocket and the passive sprocket, and carton push plates are fixed at intervals on the chains.

[0010] Preferably, the first conveyor belt for cartons, the second conveyor belt for cartons and the third conveyor belt for cartons are all provided with a conveyor belt driving shaft and a conveyor belt passive shaft, one end of the conveyor belt driving shaft extends out and is fixedly connected to a conveyor belt driving sprocket, and the conveyor belt driving sprocket is connected to the sprocket of the motor output shaft through a chain.

[0011] Preferably, the rotating shaft of the above-mentioned driving sprocket extends out and is fixedly connected to a synchronous pulley of the carton conveying mechanism, and the synchronous pulley of the carton conveying mechanism is connected to the synchronous pulley of the motor output shaft through a synchronous belt.

[0012] Preferably, a fixed carton guardrail is provided on the first side above the first conveyor belt and the second carton conveyor belt, and a retractable carton guardrail is provided on the second side above the first conveyor belt and the second carton conveyor belt to facilitate adjusting the distance between the two guardrails to adapt to the size of the carton.

[0013] Preferably, the first end of the retractable carton guardrail is rotatably connected to the carton conveyor belt frame through a vertical rod, and the second end of the retractable carton guardrail is provided with the guardrail adjustment mechanism.

[0014] Preferably, the rice bag conveying mechanism includes multiple groups of rice bag conveyor belts that are arranged closely together and operate independently. A fixed rice bag guardrail and a retractable rice bag guardrail are respectively provided on both sides above the rice bag conveyor belts to facilitate adjustment of the distance between the two guardrails to adapt to the size of the rice bag.

[0015] The working principle of the guardrail adjustment mechanism of the utility model is to realize the rotation of the guardrail adjustment screw through the operation of the stepping motor, thereby driving the axial movement of the guardrail support rod mounting seat, the guardrail support rod and the guardrail, thereby realizing the adjustment of the spacing between the guardrails to meet the limit requirements of cartons or rice bags of different sizes transported on the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the rice bag conveying mechanism from one perspective;

[0017] Figure 2 This is a three-dimensional diagram of the rice bag conveying mechanism from another perspective;

[0018] Figure 3 is a three-dimensional diagram of a rice bag guardrail adjustment mechanism (i.e., an embodiment of the utility model guardrail adjustment mechanism applied to a rice bag conveying mechanism);

[0019] Figure 4 yes Figure 3 A partial stereogram of

[0020] Figure 5 It is a partial three-dimensional diagram of the carton conveying mechanism;

[0021] Figure 6 It is a partial three-dimensional diagram of the carton conveying mechanism;

[0022] Figure 7 It is a three-dimensional diagram of a carton guardrail adjustment mechanism (i.e., an embodiment of the utility model guardrail adjustment mechanism applied to a carton conveying mechanism);

[0023] Figure 8 It is a three-dimensional diagram of the carton conveying mechanism;

[0024] Figure 9 It is a stereoscopic diagram of the utility model used in a rice packaging box machine. DETAILED DESCRIPTION

[0025] To make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0026] The rice packing machine includes a frame 1, a rice bag conveying mechanism A arranged in the frame 1, a carton conveying mechanism B, a carton opening mechanism C and a rice bag lifting and moving mechanism D. The carton opening mechanism C includes a plurality of opening plates that can keep the turning plate of the carton in an open state (the opening mechanism C can be an existing carton opening mechanism, such as Chinese patent CN218401230U).

[0027] The rice bag conveying mechanism A and the carton conveying mechanism B can be belt conveyors, roller conveyors, etc. for transporting rice bags and cartons. Other specific structures will be described in detail later. The rice bag lifting and moving mechanism D is used to transfer the rice bags on the rice bag conveying mechanism A to the cartons on the carton conveying mechanism B. It can be a robot, etc.

[0028] The guardrail adjustment mechanism of the utility model includes a stepper motor (which can be the first stepper motor B18 or the second stepper motor A10) arranged on the conveyor belt frame and a guardrail adjustment screw (carton guardrail adjustment screw B19 or rice bag guardrail adjustment screw A6) driven by the stepper motor, and the guardrail adjustment screw is threadedly connected to a guardrail support rod mounting seat (carton guardrail support rod mounting seat B20 or rice bag guardrail support rod mounting seat A7), and the guardrail support rod mounting seat is provided with a guardrail support rod (carton guardrail support rod B21 or rice bag guardrail support rod A8), and the guardrail support rod is connected to one end or both ends of the retractable guardrail.

[0029] A guardrail adjustment guide rod (carton guardrail adjustment guide rod B22 or rice bag guardrail adjustment guide rod A11) is installed on the above-mentioned conveyor belt frame, and the guardrail support rod mounting seat is slidably connected to the guardrail adjustment guide rod.

[0030] The guardrail adjustment mechanism can be used on a carton conveying mechanism or a rice bag conveying mechanism; the conveyor belt frame can include a carton conveyor belt frame B16 or a rice bag conveyor belt frame A5, and the stepper motor includes a first stepper motor B18 applied on the carton conveying mechanism and a second stepper motor A10 applied on the rice bag conveying mechanism; the guardrail adjustment screw includes a carton guardrail adjustment screw B19 applied on the carton conveying mechanism and a rice bag guardrail adjustment screw A6 applied on the rice bag conveying mechanism; the guardrail support rod mounting seat includes a carton guardrail support rod mounting seat B20 applied on the carton conveying mechanism and a rice bag guardrail support rod mounting seat A7 applied on the rice bag conveying mechanism; the retractable guardrail includes a retractable carton guardrail B14 applied on the carton conveying mechanism and a retractable rice bag guardrail A3 applied on the rice bag conveying mechanism.

[0031] The carton conveying mechanism B includes a first carton conveyor belt B1, a second carton conveyor belt B2 and a third carton conveyor belt B23 that are adjacent to each other. A hollow channel B3 is provided in the middle of the first carton conveyor belt and the second carton conveyor belt for setting a first chain conveying mechanism B4. A hollow channel is provided in the middle of the third carton conveyor belt for setting a second chain conveying mechanism B24. The first chain conveying mechanism B4 and the second chain conveying mechanism B24 both include a driving sprocket B5, a driven sprocket B6 and a chain wheel B6 wound around the driving chain. The chain B7 on the active sprocket and the passive sprocket, the active sprocket B5 of the first chain conveying mechanism is close to the output end of the second conveyor belt B2, the passive sprocket B6 of the first chain conveying mechanism is close to the input end of the first conveyor belt B1, the active sprocket and the passive sprocket of the second chain conveying mechanism are respectively arranged on the output end and the input end of the third conveyor belt of the carton, and the carton push plates B8 are fixed at intervals on the chain; through the operation of the chain (the active sprocket B5 driven by the motor drives the chain to work), the carton push plate B8 pushes the carton to move forward.

[0032] During operation, each carton is transported from the first conveyor belt to the second conveyor belt in turn through the first chain conveyor mechanism and the carton push plate thereon. When a certain number of cartons are gathered on the second conveyor belt (this application takes four cartons as an example), the first chain conveyor mechanism, the second conveyor belt, the third conveyor belt and the second chain conveyor mechanism and the carton push plate thereon act synchronously (equivalent to using the second conveyor belt as a buffer zone for collecting multiple cartons, and after the second conveyor belt collects a certain number of cartons, they are uniformly transported to the third conveyor belt, and the third conveyor belt serves as a packing station for rice bags), so that the cartons on the second conveyor belt are uniformly entered onto the third conveyor belt, which greatly saves the efficiency of the existing work of waiting for all cartons to arrive on the third conveyor belt one by one before starting the robot arm to load rice bags.

[0033] In order to ensure reasonable design, the above-mentioned first carton conveyor belt, second carton conveyor belt and third carton conveyor belt are all provided with a conveyor belt driving shaft B9 and a conveyor belt passive shaft B10. One end of the conveyor belt driving shaft extends out and is fixedly connected to the conveyor belt driving sprocket B11, and the conveyor belt driving sprocket B11 is connected to the sprocket of the motor output shaft through a chain; the rotating shaft of the driving sprocket B5 extends out and is fixedly connected to the carton conveying mechanism synchronous pulley B12, and the carton conveying mechanism synchronous pulley B12 is connected to the synchronous pulley B25 of the motor output shaft through a synchronous belt.

[0034] In order to adapt to different cartons, a fixed carton guardrail B13 is provided on the first side above the above-mentioned first conveyor belt and the second carton conveyor belt, and a retractable carton guardrail B14 is provided on the second side above the above-mentioned first conveyor belt and the second carton conveyor belt, so as to facilitate the adjustment of the distance between the two guardrails to adapt to the size of the carton. The retractable carton guardrail B14 can be driven to retract and retract by a cylinder, an electric push cylinder, etc. The following is the specific structure of the retractable carton guardrail B14 of this application.

[0035] The first end of the retractable carton guardrail B14 is rotatably connected to the carton conveyor belt frame B16 through the vertical rod B15, and the second end of the retractable carton guardrail B14 is provided with a guardrail adjustment mechanism B17; the guardrail adjustment mechanism B17 includes a first stepper motor B18 arranged on the carton conveyor belt frame and a carton guardrail adjustment screw B19 driven by the first stepper motor, and the carton guardrail adjustment screw B19 is threadedly connected to the carton guardrail support rod mounting seat B20, and the carton guardrail support rod mounting seat is provided with a carton guardrail support rod B21, and the carton guardrail support rod B21 is connected to the second end of the retractable carton guardrail. When the first stepper motor B18 is working, it drives the carton guardrail adjustment screw B19 to rotate, and then drives the carton guardrail support rod mounting seat B20, the carton guardrail support rod B21 and the second end of the retractable carton guardrail B14 to move (in the Y direction shown in the figure), thereby realizing the limitation of the side of the carton.

[0036] In order to ensure stable and reliable movement of the carton guardrail support rod mounting seat B20, a carton guardrail adjustment guide rod B22 is installed on the above-mentioned carton conveyor belt frame B16, and the carton guardrail support rod mounting seat B20 is slidably connected to the carton guardrail adjustment guide rod B22.

[0037] The rice bag conveying mechanism A includes multiple groups of rice bag conveyor belts A1 that are arranged closely together and operate independently. A fixed rice bag guardrail A2 and a retractable rice bag guardrail A3 are respectively provided on both sides above the rice bag conveyor belts to facilitate adjustment of the distance between the two guardrails to adapt to the size of the rice bag.

[0038] The two ends of the retractable rice bale guardrail A3 are respectively connected to two groups of rice bale guardrail adjustment mechanisms A4, wherein the rice bale guardrail adjustment mechanism A4 includes a rice bale guardrail adjustment screw A6 provided on the rice bale conveyor belt frame A5 and a rice bale guardrail support rod mounting seat A7 threadedly connected to the rice bale guardrail adjustment screw. The rice bale guardrail support rod mounting seat A7 is provided with a rice bale guardrail support rod A8, and the rice bale guardrail support rod A8 is connected to the two ends of the retractable rice bale guardrail. The end of the rice bale guardrail adjustment screw A6 is provided with a guardrail adjustment synchronous pulley A9, and a synchronous belt is wound between the two guardrail adjustment synchronous pulleys, one of which is provided with a guardrail adjustment synchronous pulley. The rice bale guardrail adjustment screw is driven by the second stepper motor A10. A rice bale guardrail adjustment guide rod A11 is installed on the rice bale conveyor belt frame A5. The rice bale guardrail support rod mounting seat A7 is slidably connected to the rice bale guardrail adjustment guide rod A11. When the second stepper motor A10 is working, the two rice bale guardrail adjustment screws A6 are rotated synchronously through the synchronous belt and the guardrail adjustment synchronous pulley A9, thereby driving the rice bale guardrail support rod mounting seat A7, the rice bale guardrail support rod A8 and the two ends of the retractable rice bale guardrail A to move synchronously along the Y direction shown in the figure, thereby adjusting to the needs of different rice bale sizes.

[0039] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A guardrail adjustment mechanism, characterized in that: It includes a stepper motor arranged on a conveyor belt frame and a guardrail adjustment screw driven by the stepper motor, the guardrail adjustment screw is threadedly connected to a guardrail support rod mounting seat, the guardrail support rod mounting seat is provided with a guardrail support rod, and the guardrail support rod is connected to one end or both ends of a retractable guardrail.

2. The guardrail adjustment mechanism according to claim 1, characterized in that: A guardrail adjustment guide rod is installed on the conveyor belt frame, and the guardrail support rod mounting seat is slidably connected to the guardrail adjustment guide rod.

3. The guardrail adjustment mechanism according to claim 1 or 2, characterized in that: The guardrail adjustment mechanism is used on a carton conveying mechanism or a rice bag conveying mechanism; the conveyor belt frame includes a carton conveyor belt frame or a rice bag conveyor belt frame, and the stepper motor includes a first stepper motor applied on the carton conveying mechanism and a second stepper motor applied on the rice bag conveying mechanism; the guardrail adjustment screw includes a carton guardrail adjustment screw applied on the carton conveying mechanism and a rice bag guardrail adjustment screw applied on the rice bag conveying mechanism; the guardrail support rod mounting seat includes a carton guardrail support rod mounting seat applied on the carton conveying mechanism and a rice bag guardrail support rod mounting seat applied on the rice bag conveying mechanism; the retractable guardrail includes a retractable carton guardrail applied on the carton conveying mechanism and a retractable rice bag guardrail applied on the rice bag conveying mechanism.

4. The guardrail adjustment mechanism according to claim 3, characterized in that: The carton conveying mechanism includes the first carton conveyor belt, the second carton conveyor belt and the third carton conveyor belt arranged adjacent to each other. A hollow channel is provided in the middle of the first carton conveyor belt and the second carton conveyor belt for setting up a first chain conveying mechanism. A hollow channel is provided in the middle of the third carton conveyor belt for setting up a second chain conveying mechanism. The first chain conveying mechanism and the second chain conveying mechanism both include a driving sprocket, a passive sprocket and a chain wound around the driving sprocket and the passive sprocket, and carton push plates are fixed at intervals on the chains.

5. The guardrail adjustment mechanism according to claim 4, characterized in that: The first conveyor belt for cartons, the second conveyor belt for cartons and the third conveyor belt for cartons are all provided with a conveyor belt driving shaft and a conveyor belt passive shaft. One end of the conveyor belt driving shaft extends out and is fixedly connected to a conveyor belt driving sprocket, and the conveyor belt driving sprocket is connected to the sprocket of the motor output shaft through a chain.

6. The guardrail adjustment mechanism according to claim 5, characterized in that: The rotating shaft of the driving sprocket extends out and is fixedly connected to a synchronous pulley of a carton conveying mechanism, and the synchronous pulley of the carton conveying mechanism is connected to a synchronous pulley of a motor output shaft through a synchronous belt.

7. The guardrail adjustment mechanism according to claim 6, characterized in that: A fixed carton guardrail is provided on the first side above the first conveyor belt and the second carton conveyor belt, and a retractable carton guardrail is provided on the second side above the first conveyor belt and the second carton conveyor belt to facilitate adjusting the distance between the two guardrails to adapt to the size of the carton.

8. The guardrail adjustment mechanism according to claim 7, characterized in that: The first end of the retractable carton guardrail is rotatably connected to the carton conveyor belt frame through a vertical rod, and the second end of the retractable carton guardrail is provided with the guardrail adjustment mechanism.

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