High-precision automatic cap screwing machine for plastic bottles

Abstract

The utility model discloses a high-precision automatic cap screwing machine for plastic bottles. The high-precision automatic cap screwing machine comprises a base station; a conveying belt used for conveying filled plastic bottles is arranged on the base table, and supporting plates are arranged on the two sides of the base table. The rotating mechanism is arranged at the bottom of the upper end of the supporting plate; the rotating mechanism is driven by a first air cylinder to ascend and descend and comprises a motor and a rotating frame, and the rotating frame is arranged in an n shape. The clamping mechanism is used for clamping the bottle cap; the clamping mechanism comprises a second air cylinder and a clamping block which are installed on the outer wall of the rotating frame, a piston rod of the second air cylinder penetrates through the rotating frame and is fixedly connected to the clamping block, the clamping block is arranged in an arc shape, and rubber strips are distributed on the arc-shaped inner wall of the clamping block. The plastic bottle cap capping machine has the advantages that the plastic bottle caps are capped by matching the image acquisition and sensor detection modes with the rotating mechanism and the clamping mechanism, the precision is high, the filling quality and efficiency of the plastic bottles are guaranteed, and the practical value is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filling equipment, in particular to a high-precision automatic capping machine for plastic bottles. Background Art

[0002] Plastic bottle filling refers to the process of filling liquid materials into plastic bottles using specialized machinery. This filling method is widely used in industries such as beverages, pharmaceuticals, and chemicals. The filling process typically includes a series of automated or semi-automated operations, including bottle conveying, cleaning, filling, sealing, labeling, testing, and packaging.

[0003] After filling, plastic bottles need to be capped. A search revealed that the Chinese patent application number CN201720333839.6 discloses an efficient capping device for plastic bottle caps. Both the left and right bottle clamping mechanisms are mounted on a frame assembly and located on one side of a conveyor belt. The cap feeding mechanism includes a left support seat, multiple cap storage cylinders, and a first drive mechanism. The left support seat is mounted on the frame assembly and located above the left bottle clamping mechanism. The capping mechanism includes a right support seat, a motor, and a second drive mechanism. The right support seat is located above the right bottle clamping mechanism. The right support seat is connected to the second drive mechanism and is driven up and down by the second drive mechanism. The motor is mounted on the right support seat. The efficient capping device for plastic bottle caps proposed in this utility model realizes mechanized operation, with strong process continuity, low labor intensity, safe operation, and high production efficiency.

[0004] The above technical solutions and traditional capping equipment often have insufficient precision during the capping process, which affects the packaging quality and production efficiency of the product. Therefore, it is of great practical significance to design a high-precision plastic bottle capping device to meet the market demand for high-quality packaging. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision automatic capping machine for plastic bottles. The device has a simple structure and is easy to use. It uses image acquisition and sensor detection in conjunction with a rotating mechanism and a clamping mechanism to cap plastic bottle caps. It has high precision, ensures the quality and efficiency of plastic bottle filling, and has high practical value to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A high-precision automatic capping machine for plastic bottles, comprising:

[0008] abutment;

[0009] The base is provided with a conveyor belt for conveying the plastic bottles after filling, and support plates are provided on both sides of the base. The support plates are arranged in an L shape, and a control panel is installed on one set of the support plates;

[0010] A rotating mechanism provided at the bottom of the upper end of the support plate;

[0011] The rotating mechanism is driven to rise and fall by the first cylinder, and the rotating mechanism includes a motor and a rotating frame, the output end of the motor is fixedly connected to the top center of the rotating frame, and the rotating frame is arranged in a U-shaped shape;

[0012] A clamping mechanism for clamping the bottle cap;

[0013] The clamping mechanism includes a second cylinder and a clamping block installed on the outer wall of the rotating frame. The piston rod of the second cylinder passes through the rotating frame and is fixedly connected to the clamping block. The clamping block is arranged in an arc shape, and rubber strips are distributed on the arc-shaped inner wall of the clamping block.

[0014] Preferably, a gap is provided between the two groups of support plates, and the gap allows the electric motor to pass through when it is raised or lowered, and a first cylinder is installed on the upper ends of the two groups of support plates.

[0015] Preferably, the lower end of the piston rod of the first cylinder passes through the support plate and is connected to the lifting plate, the motor is installed on the lifting plate, and the output end of the motor passes through the lifting plate and is fixedly connected to the top of the rotating frame.

[0016] Preferably, guide rods are symmetrically arranged on the lifting plate, and the guide rods are slidably inserted into the support plate.

[0017] Preferably, cameras for detecting the integrity of bottle caps are installed at the center and both sides of the inner top of the rotating frame. The cameras on both sides are arranged in an inclined shape to observe whether the sides of the bottle caps are intact. A proximity sensor is also installed at the inner top of the rotating frame to detect the position of the plastic bottle.

[0018] Preferably, the inner walls of the support plates are installed with infrared radiation sensors for detecting plastic bottles, wherein one group of the inner walls of the support plates are installed with transmitting ends of the infrared radiation sensors, and the other group of the inner walls of the support plates are installed with receiving ends of the infrared radiation sensors.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model arranges a conveyor belt on a base, support plates on both sides of the base, a first cylinder is installed on the support plate to drive a lifting plate, a motor is installed on the lifting plate to drive a rotating frame, and a second cylinder is installed on the rotating frame to drive a clamping block to clamp the bottle caps, and improves the operation accuracy by collecting images through a camera. The device has a simple structure and is easy to use. The image collection and sensor detection methods are combined with the rotating mechanism and the clamping mechanism to perform the capping operation on the plastic bottle caps, with high accuracy, ensuring the quality and efficiency of plastic bottle filling, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the present utility model;

[0022] Figure 2 is a schematic structural view of the lifting plate of the present utility model;

[0023] Figure 3 is a schematic structural view of the clamping block of the present utility model.

[0024] In the figure: 1, base; 2, conveyor belt; 3, support plate; 4, first cylinder; 5, lifting plate; 6, motor; 7, rotating frame; 8, second cylinder; 9, clamping block; 10, control panel; 11, guide rod; 12, camera; 13, infrared pair sensor; 14, proximity sensor. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1-3 , the present utility model provides a technical solution:

[0027] A high-precision automatic plastic bottle capping machine, comprising:

[0028] Base 1; a conveyor belt 2 for conveying plastic bottles after filling is provided on the base 1, support plates 3 are provided on both sides of the base 1, the support plates 3 are arranged in an L shape, and a control panel 10 is installed on one group of support plates 3;

[0029] A rotating mechanism provided at the bottom of the upper end of the support plate 3; the rotating mechanism is driven by the first cylinder 4 to lift, the rotating mechanism includes a motor 6 and a rotating frame 7, the output end of the motor 6 is fixedly connected to the center of the top of the rotating frame 7, and the rotating frame 7 is arranged in a U shape;

[0030] A clamping mechanism for clamping the bottle cap; the clamping mechanism includes a second cylinder 8 and a clamping block 9 installed on the outer wall of the rotating frame 7, the piston rod of the second cylinder 8 penetrates through the rotating frame 7 and is fixedly connected to the clamping block 9, the clamping block 9 is arranged in an arc shape, and rubber strips are distributed on the arc-shaped inner wall of the clamping block 9.

[0031] A gap is provided between the two sets of support plates 3, through which the power supply motor 6 passes when it is raised or lowered. A first cylinder 4 is mounted on the upper ends of the two sets of support plates 3. The lower end of the piston rod of the first cylinder 4 passes through the support plates 3 and is connected to the lifting plate 5. The motor 6 is mounted on the lifting plate 5, and the output end of the motor 6 passes through the lifting plate 5 and is fixedly connected to the top of the rotating frame 7. Guide rods 11 are symmetrically arranged on the lifting plate 5 and are slidably connected to the support plates 3.

[0032] Cameras 12 for detecting the integrity of bottle caps are installed at the center and both sides of the inner top of the rotating frame 7. The cameras 12 on both sides are arranged in an inclined shape to observe whether the sides of the bottle caps are intact. A proximity sensor 14 is also installed at the inner top of the rotating frame 7 to detect the position of the plastic bottle.

[0033] The inner wall of the support plate 3 is installed with an infrared radiation sensor 13 for detecting plastic bottles. One group of the inner walls of the support plate 3 is installed with the transmitting end of the infrared radiation sensor 13, and the inner wall of the other group of the support plate 3 is installed with the receiving end of the infrared radiation sensor 13.

[0034] A conveyor belt 2 is arranged on the base 1, support plates 3 are arranged on both sides of the base 1, a first cylinder 4 is installed on the support plate 3 to drive the lifting plate 5, a motor 6 is installed on the lifting plate 5 to drive the rotating frame 7, and a second cylinder 8 is installed on the rotating frame 7 to drive the clamping block 9 to clamp the bottle cap, and the camera 12 is used to collect images to improve the operation accuracy. In actual use, the plastic bottles are transported by the conveyor belt 2. When the plastic bottle passes the infrared radiation sensor 13, the control panel 10 receives a signal to stop the conveyor belt 2, and starts the first cylinder 4 to drive the rotating mechanism and the clamping mechanism to descend. In this process, the camera 12 performs image detection on the bottle cap, and the proximity sensor 14 detects the position of the bottle cap. When it descends to a certain extent, the second cylinder 8 is started to clamp the bottle cap, and the motor 6 works to tighten the bottle cap. After tightening, the second cylinder 8 and the first cylinder 4 are reset, and the control panel 10 controls the conveyor belt 2 to continue conveying until the next plastic bottle is capped.

[0035] In general, the device has a simple structure and is easy to use. The image acquisition and sensor detection methods are combined with the rotating mechanism and the clamping mechanism to perform the capping operation on the plastic bottle caps. It has high precision, ensures the quality and efficiency of plastic bottle filling, and has high practical value.

[0036] The control panel 10 includes a display screen and control buttons. An alarm light and an alarm speaker are located on top of the control panel 10. The camera 12 is an industrial camera that captures images of the bottle caps below and transmits them to the control panel 10. The camera 12 extracts the shape features of the bottle caps, such as outline, size, and angle. These features can be used for subsequent template matching or shape matching.

[0037] The control panel 10 compares the extracted bottle cap features with the preset template. If the matching degree reaches a certain threshold, the bottle cap is considered to have a normal appearance; otherwise, there may be defects.

[0038] For bottle caps with complex shapes, shape matching algorithms can be used for comparison, and the similarity between the two shapes can be calculated to determine whether the bottle cap is qualified;

[0039] The control panel 10 displays the detection results in the form of an image through the display screen, marking the detected defect location and related information in the image;

[0040] Establish a feedback mechanism through alarm lights and alarm horns. When defective products appear, the test results will be fed back to production managers or operators in a timely manner so that timely measures can be taken to deal with unqualified products.

[0041] The control method of the control panel 10 of the present application is to use a built-in PLC controller in the control panel 10. The control circuit of the PLC controller can be realized by simple programming by technicians in this field, which is common knowledge in this field. In addition, this application document is mainly used to protect mechanical devices, so this application document will no longer explain the control method and circuit connection in detail.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A high-precision automatic capping machine for plastic bottles, characterized in that: Comprising: A base (1); A conveyor belt (2) for conveying plastic bottles after filling is provided on the base (1), and support plates (3) are provided on both sides of the base (1). The support plates (3) are arranged in an L shape, and a control panel (10) is installed on one group of support plates (3); A rotating mechanism provided at the bottom of the upper end of the support plate (3); The rotating mechanism is driven to lift by a first cylinder (4). The rotating mechanism includes a motor (6) and a rotating frame (7). The output end of the motor (6) is fixedly connected to the center of the top of the rotating frame (7), and the rotating frame (7) is arranged in a U shape; A clamping mechanism for clamping the bottle cap; The clamping mechanism includes a second cylinder (8) and a clamping block (9) installed on the outer wall of the rotating frame (7). The piston rod of the second cylinder (8) penetrates through the rotating frame (7) and is fixedly connected to the clamping block (9). The clamping block (9) is arranged in an arc shape, and rubber strips are distributed on the inner arc wall of the clamping block (9).

2. The high-precision automatic capping machine for plastic bottles according to claim 1, characterized in that: A gap is provided between the two groups of support plates (3) for the motor (6) to pass through when lifting. A first cylinder (4) is installed at the upper ends of the two groups of support plates (3).

3. The high-precision automatic capping machine for plastic bottles according to claim 2, characterized in that: The lower end of the piston rod of the first cylinder (4) penetrates through the support plate (3) and is connected to a lifting plate (5). The motor (6) is installed on the lifting plate (5), and the output end of the motor (6) penetrates through the lifting plate (5) and is fixedly connected to the top of the rotating frame (7).

4. The high-precision automatic capping machine for plastic bottles according to claim 3, characterized in that: Guide rods (11) are symmetrically arranged on the lifting plate (5), and the guide rods (11) are slidably inserted into the support plate (3).

5. The high-precision automatic capping machine for plastic bottles according to claim 1, characterized in that: Cameras (12) for detecting the integrity of the bottle cap are installed at the center and both sides of the inner top of the rotating frame (7). The cameras (12) located on both sides are arranged obliquely for observing whether the side of the bottle cap is intact. A proximity sensor (14) is also installed at the inner top of the rotating frame (7) for detecting the position of the plastic bottle.

6. The high-precision automatic capping machine for plastic bottles according to claim 1, characterized in that: An infrared opposed sensor (13) is installed on the inner wall of the support plate (3) for detecting the plastic bottle. The emitting end of the infrared opposed sensor (13) is installed on the inner wall of one group of support plates (3), and the receiving end of the infrared opposed sensor (13) is installed on the inner wall of the other group of support plates (3).

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