A protective plate for filling machines that can prevent collisions

Abstract

This utility model relates to a filling machine guard plate, specifically disclosing a filling machine guard plate that can prevent collisions. It includes an upper guard plate and a lower guard plate movably mounted on a machine tool in the height direction. A fixing shaft mechanism for fixing the upper guard plate is provided between the upper and lower guard plates and the machine tool. The fixing shaft mechanism includes a stepped shaft-shaped pin and fixing bolts. The lower end of the pin is fixed to the machine tool, and the pin passes upward through the lower and upper guard plates sequentially. The top end of the pin is flush with the upper surface of the upper guard plate. A bolt hole is provided at the top end of the pin along its axial direction, and the upper guard plate can be fixed by the fixing bolt and the bolt hole. Simultaneously, a photoelectric detection device is installed on the upper guard plate for real-time detection of its levelness. This utility model has a simple structure and low cost. By making the guard plate a detachable fixed structure, combined with the photoelectric detection device, it can avoid collision accidents caused by bottle jamming during filling production, and is suitable for various types of filling machines.

Description

Technical Field

[0001] This utility model relates to a filling machine guard plate, specifically a filling machine guard plate that can prevent collisions. Background Technology

[0002] The distribution of the working units of an existing filling production equipment is shown in the attached figure. Figure 1 As shown, the system includes a bottle inlet unit 1, a bottle washing unit 2, a filling unit 3, a capping unit 4, and a bottle outlet unit 5 arranged sequentially. It also includes star wheels running between the units, including a first star wheel 6, a second star wheel 7, a third star wheel 8, and a fourth star wheel 9. These star wheels transfer the bottle from one unit to the next. Bottle-retaining grooves are evenly distributed along the circumference of each star wheel to accommodate the bottle. Figure 1 (Not shown in the figure) Correspondingly, within the travel range of the star wheel transporting the bottle, a non-circular guard plate 10 should be provided to limit the position of the bottle (only the guard plate 10 located between the filling unit 3 and the second star wheel 7 and the third star wheel 8 is shown in the figure). The arc-shaped edge of the guard plate 10 should be correspondingly set with the outer circumference of the star wheel and the outer circumference of the filling unit. In existing equipment, the guard plate 10 includes an upper guard plate and a lower guard plate arranged in parallel. The double-layer guard plate setting can limit the bottle body in both high and low positions. The guard plate 10 is movable in the height direction and fixed on the machine tool in the horizontal direction. During the filling production, due to the quality difference of individual bottles, they may deform in the bottle washing unit 2. When the second star wheel 7 transports such deformed bottles, they may get stuck between the second star wheel 7 and the guard plate 10 due to their abnormal position. At this time, the machine continues to run, and deformed bottles are easily carried between the upper and lower layers of the protective plate 10. Once multiple deformed bottles are stuck, the upper protective plate is dislodged from its original position under the action of strong power. After the upper protective plate is dislodged, it tilts upward and eventually collides with the filling head of the filling unit, causing a collision accident and seriously affecting the production progress. Utility Model Content

[0003] To address the problem of collisions between the protective plate and the filling head caused by deformable bottles jamming in existing filling production equipment, this utility model aims to provide a collision-proof protective plate for filling machines to prevent accidents involving the filling head and ensure production progress.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a filling machine guard plate that can prevent collisions, comprising an upper guard plate and a lower guard plate arranged in parallel with a certain distance between them, and a fixing shaft mechanism for fixing the upper guard plate is provided between the upper guard plate, the lower guard plate and the machine tool.

[0005] As a limitation of this utility model: the fixed shaft mechanism includes a pin and a fixing bolt. The pin is a stepped shaft shape, including a first pin at the upper end and a second pin at the lower end. The diameter of the first pin is smaller than the diameter of the second pin. The lower end of the pin is fixed on the machine tool. The pin passes through the lower guard plate and the upper guard plate in sequence. The shoulder of the pin is used to place the lower guard plate. The top end of the pin is flush with the upper surface of the upper guard plate. A bolt hole is opened at the top end of the pin along its axial direction. The fixing bolt matches the bolt hole.

[0006] As a limitation of this utility model: the fixed shaft mechanism also includes a shim, which is located between the fixed bolt and the pin.

[0007] As a limitation of this utility model: the fixed shaft mechanism is located at the center of the guard plate or near the filling unit.

[0008] As a limitation of this utility model: a photoelectric detection device for detecting the horizontal state of the upper protective plate is fixedly provided on the upper protective plate.

[0009] As a limitation of this utility model: the photoelectric detection device is a reflective photoelectric detection device, including a sensor and a reflector. The sensor is fixed on the upper surface of the upper protective plate, and the reflector is fixed on the machine tool in the opposite direction of the sensor.

[0010] As a limitation of this utility model: the sensor is communicatively connected to the main control system of the filling machine, and when the photoelectric detection device detects an abnormality, it can issue a shutdown alarm through the main control system of the filling machine.

[0011] As a limitation of this utility model: the sensor is located at one corner of the upper protective plate.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: This invention replaces the existing movable guard plate with a detachable one. Without altering the original guard plate placement and structure, a fixed shaft mechanism secures the upper guard plate to the machine tool. The pin and fixing bolts allow for quick and easy assembly and disassembly, without affecting the maintenance convenience of the existing filling machine. Simultaneously, it effectively fixes the upper guard plate to the machine tool, preventing collisions (collisions with the filling head) caused by the upper guard plate being lifted or flying off due to bottle jamming. Furthermore, photoelectric detection devices are installed at the corners of the upper guard plate to monitor its levelness in real time. When a deformed bottle gets stuck on the guard plate, the corners will tilt upwards, preventing the sensor from receiving light reflected from the reflector. In this case, the photoelectric detection device can issue a stop alarm through the main control system of the filling machine, which is connected to it, to promptly stop the machine and prevent collisions.

[0013] In summary, this utility model has a simple structure and low cost. By setting the protective plate at the filling unit of the existing equipment as a fixed structure and cooperating with the photoelectric detection device, it can avoid collision accidents caused by bottle jamming during filling production and is suitable for various types of filling machines. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the distribution structure of each working unit of an existing filling machine; Figure 2 This is a cross-sectional view of the fixed shaft mechanism according to an embodiment of the present utility model; Figure 3 This is a three-dimensional structural diagram of some of the mechanisms in the embodiments of this utility model.

[0016] In the diagram: 1-Bottle inlet unit, 2-Bottle washing unit, 3-Filling unit, 4-Capping unit, 5-Bottle outlet unit, 6-First star wheel, 7-Second star wheel, 8-Third star wheel, 9-Fourth star wheel, 10-Guard plate, 11-Upper guard plate, 12-Lower guard plate, 13-First pin, 14-Second pin, 15-Fixing bolt, 16-Gasket, 17-Sensor. Detailed Implementation

[0017] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. It should be understood that the anti-collision filling machine guard plate described herein is a preferred embodiment and is only used for illustration and explanation of this utility model, and does not constitute a limitation thereof.

[0018] The directional terms or positional relationships used in this utility model, such as "up," "down," "left," and "right," are based on the positional relationships in the accompanying drawings of this utility model. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model.

[0019] This implementation example Figure 2 , Figure 3As shown, a collision-prevention filling machine guard plate includes an upper guard plate 11 and a lower guard plate 12. The upper guard plate 11 and lower guard plate 12 are movably mounted on the machine tool in the height direction, meaning they are placed parallel to each other with a certain distance between them. Specifically, stepped shaft-shaped support rods are provided at the four corners of the guard plate, and the lower guard plate 12 and upper guard plate 11 are placed sequentially on the support rods according to the required height. This double-layer guard plate arrangement can limit the bottle body in both the upper and lower positions, keeping the bottle stable during the filling process. Furthermore, the guard plate is made movable in the height direction for easy disassembly during adjustment or machine maintenance. During normal production, the weight of the guard plate itself allows it to be placed stably on the machine tool and provides horizontal restraint for the bottle body. However, during production, due to poor quality of some bottles, they may deform in the bottle washing unit. When the second star wheel 7 transports such deformed bottles, they may become stuck between the second star wheel 7 and the guard plate 10 due to their abnormal position. When the filling machine is running at high speed, the stuck deformed bottles will lift the guard plate. The guard plate 10 mentioned in this utility model refers to the plate set in... Figure 1 The protective plate between the injection unit 3 and the second star wheel 7 and the third star wheel 8. Of course, the protective plate in other positions can also adopt the structure of this utility model.

[0020] like Figure 2 As shown, to prevent the protective plate from lifting or even completely detaching from its original position after the deformed bottle gets stuck, in this embodiment, a fixing shaft mechanism for fixing the upper protective plate 11 is provided between the upper protective plate 11, the lower protective plate 12, and the machine tool. The fixing shaft mechanism includes a pin and a fixing bolt 15. Specifically, the pin is designed as a stepped shaft, including a first pin 13 at the upper end and a second pin 14 at the lower end. The diameter of the first pin 13 is smaller than the diameter of the second pin, and the point where the diameters of the first pin 13 and the second pin 14 change is a shoulder. The lower end of the pin is fixed to the machine tool, and the pin passes upward through the lower protective plate 12 and the upper protective plate 11 in sequence. The shoulder of the pin is used to place the lower protective plate 12. The height of the second pin 14 is equal to the distance from the lower protective plate 12 to the machine tool. The top end of the first pin 13 is flush with the upper surface of the upper guard plate 11, and an inner bolt hole along its axial direction is provided at the top end of the pin. The fixing bolt 15 matches the bolt hole, and the upper guard plate 11 can be fixed by the fixing bolt 15, changing its movable state in the height direction to a fixed state. In order to better fix the upper guard plate 11, a washer 16 is provided between the fixing bolt 15 and the pin. The inner diameter of the washer 16 matches the thread of the fixing bolt 15, and the outer diameter of the washer 16 is larger than the outer diameter of the nut part of the fixing bolt 15. In this embodiment, one fixing shaft mechanism is provided, which is preferably set at the center of the guard plate or near the filling unit. Of course, multiple fixing shaft mechanisms can also be provided, but multiple fixing shaft mechanisms will bring inconvenience to the adjustment of the guard plate or the maintenance of the machine.

[0021] Although the probability of deformed bottles occurring is small, it is unavoidable. Collisions caused by deformed bottles are serious production accidents. Therefore, in order to detect bottles jammed by the protective plate in a timely manner, this embodiment fixes a photoelectric detection device on the upper protective plate 11, such as... Figure 3 As shown, the photoelectric detection device is used to detect the horizontal state of the upper protective plate 11. Specifically, the photoelectric detection device is a reflective photoelectric detection device, mainly including a sensor 17 and a reflector (not shown in the figure). The sensor 17 is fixed to the upper surface of the upper protective plate 11 and is communicatively connected to the main control system of the filling machine. A reflector is fixed on the machine tool opposite to the sensor 17. The sensor 17 can be set at one of the corners of the upper protective plate 11, preferably near the edge of the second star wheel. The sensor 17 and the reflector can be constructed using existing technologies. The specific location of the reflector can be determined according to the actual production situation. When the upper protective plate 11 is in a horizontal state, the light emitted by the sensor 17 can be smoothly reflected back through the reflector. When deformed bottles are stuck in the protective plate and multiple deformed bottles are stuck, under the action of strong force, the edge or corner of the upper protective plate 11 will be slightly lifted or shaken. At this time, the position of the sensor 17 also changes, and it cannot receive the returned sensing light normally. That is, the photoelectric detection device detects an abnormality, and then issues a shutdown alarm through the main control system of the filling machine.

[0022] In using this embodiment, firstly, the upper protective plate 11 and the lower protective plate 12 are removed in sequence. Mounting holes for installing pins are made in both the upper and lower protective plates 11 and 12, and the lower ends of the pins are fixed to the corresponding positions on the machine tool. Then, the lower protective plate 12 and the upper protective plate 11 are placed back in their original positions, and the fixing bolts 15 with washers 16 are screwed into the bolt holes and tightened to fix the upper protective plate 11. A sensor 17 and a reflector are installed on the upper protective plate 11 and the machine tool, respectively. The sensor 17 is communicatively connected to the main control system of the filling machine. A stop alarm can be issued through the sensor 17 and the main control system. When a deformed bottle gets stuck in the protective plate, the fixing shaft mechanism ensures that the protective plate will not detach. When the edge or corner of the upper protective plate 11 is lifted or shaken, the sensor 17 cannot properly receive the returned sensing light, indicating an abnormality detected by the photoelectric detection device. This triggers a stop alarm through the main control system of the filling machine, allowing workers to stop the machine promptly.

Claims

1. A crash-proof filling machine guard plate, comprising an upper guard plate and a lower guard plate arranged in parallel with a certain distance between them, characterized in that: A fixing shaft mechanism for fixing the upper guard plate is also provided between the upper guard plate, the lower guard plate and the machine tool.

2. The anti-collision guard plate for a filling machine according to claim 1, characterized in that: The fixed shaft mechanism includes a pin and a fixing bolt. The pin is stepped, with a first pin at the upper end and a second pin at the lower end. The diameter of the first pin is smaller than that of the second pin. The lower end of the pin is fixed to the machine tool. The pin passes through the lower guard plate and the upper guard plate in sequence. The shoulder of the pin is used to place the lower guard plate. The top of the pin is flush with the upper surface of the upper guard plate. A bolt hole is opened at the top of the pin along its axial direction. The fixing bolt matches the bolt hole.

3. A filling machine guard plate for preventing vehicle collisions according to claim 2, characterized in that: The fixed shaft mechanism also includes a shim, which is located between the fixed bolt and the pin.

4. A filling machine guard plate for preventing vehicle collisions according to claim 3, characterized in that: The fixed shaft mechanism is located at the center of the guard plate or near the filling unit.

5. A filling machine guard plate for preventing vehicle collisions according to any one of claims 1 to 4, characterized in that: The upper protective plate is fixedly equipped with a photoelectric detection device for detecting the horizontal state of the upper protective plate.

6. A filling machine guard plate for preventing vehicle collisions according to claim 5, characterized in that: The photoelectric detection device is a reflective photoelectric detection device, including a sensor and a reflector. The sensor is fixed on the upper surface of the upper protective plate, and the reflector is fixed on the machine tool in the opposite direction of the sensor.

7. A filling machine guard plate for preventing vehicle collisions according to claim 6, characterized in that: The sensor is connected to the main control system of the filling machine. When the photoelectric detection device detects an abnormality, it can issue a shutdown alarm through the main control system of the filling machine.

8. A filling machine guard plate for preventing vehicle collisions according to claim 7, characterized in that: The sensor is located at one corner of the upper protective plate.

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