A visual positioning-based automatic trimming and detecting device for a bottle blank mouth

Abstract

The application discloses a kind of based on visual positioning's bottle blank mouth automatic trimming and detection device, belong to detection device technical field, comprising: transmission unit;Appearance detection unit, it is located transmission unit rear end;Trimming unit, it is located appearance detection unit rear end;And several grabbing units, it is respectively located transmission unit, appearance detection unit and trimming unit one side.The present application solves the traditional bottle embryo trimming practice is that operator hand-held tool trimming bottle mouth, and through naked eye inspection bottle blank appearance;This mode is high in labor intensity, poor consistency, not suitable for mass production, or using simple fixture to fix bottle blank, through rotary blade to remove fly edge;Detection link still mainly relies on artificial sampling inspection, it is difficult to realize the problem of full inspection.

Description

Technical Field

[0001] This invention belongs to the field of detection device technology, and particularly relates to an automatic trimming and detection device for the mouth of a bottle preform based on vision positioning. Background Technology

[0002] In plastic bottle production, preforms are usually formed using injection molding. Before entering the blow molding process, the preform mouth needs to be trimmed and the appearance quality of the preform needs to be inspected to ensure the sealing, strength and appearance consistency of the final packaging container.

[0003] The traditional approach involves operators using a knife to trim the bottle neck and visually inspecting the appearance of the preform. This method is labor-intensive, inconsistent, and unsuitable for mass production. Alternatively, simple clamps can be used to fix the preform, and the flash can be removed by rotating the blade. The inspection process still mainly relies on manual sampling, making it difficult to achieve full inspection. Summary of the Invention

[0004] The purpose of this invention is to address the problems of traditional bottle preform trimming methods, which involve operators manually trimming the bottle neck with a knife and visually inspecting the preform's appearance. This method is labor-intensive, inconsistent, and unsuitable for mass production. Alternatively, simple clamps can be used to fix the preform and remove burrs by rotating a blade. The inspection process still mainly relies on manual sampling, making it difficult to achieve full inspection. Therefore, this invention proposes an automatic preform neck trimming and inspection device based on vision positioning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic trimming and detection device for the mouth of a bottle preform based on vision positioning, comprising:

[0006] Transmission unit;

[0007] The appearance inspection unit is located at the rear end of the transmission unit;

[0008] The trimming unit is located at the rear end of the appearance inspection unit;

[0009] It consists of several grasping units, which are located on one side of the transmission unit, appearance inspection unit, and trimming unit, respectively.

[0010] Furthermore, the aforementioned appearance inspection unit includes a support frame, a light, and a camera. A second connecting rod is provided on the support frame, the light is connected to the top of the support frame, and the camera is connected to the second connecting rod.

[0011] Furthermore, the aforementioned light is located on top of the camera.

[0012] Furthermore, the trimming unit includes a first support base, a first rotating base, a limiting member, and a trimming member. The trimming member is connected to the second support base via a support plate. The limiting member limits the preform opening. The trimming member abuts against the preform opening. The first rotating base is connected to the first support base.

[0013] Furthermore, the aforementioned limiting component includes a first telescopic cylinder and a first positioning head, with the first positioning head connected to the first telescopic cylinder.

[0014] Furthermore, the aforementioned trimming component includes a second telescopic cylinder, a connecting block, a motor, and a trimming head. The second telescopic cylinder is connected to the support plate, the connecting block is connected to the telescopic end of the second telescopic cylinder, the motor is connected to the connecting block, and the trimming head is connected to the motor.

[0015] Furthermore, the aforementioned gripping unit includes a second rotating seat, a first connecting rod, and a gripper. The first connecting rod is connected to the second rotating seat, and the gripper is connected to the first connecting rod.

[0016] The present invention provides an automatic trimming and inspection device for the mouth of a bottle preform based on vision positioning. The bottle preform enters the transmission unit from the previous process and is conveyed forward according to a set rhythm. When the bottle preform reaches the appearance inspection unit, the light located on the top of the support frame provides uniform illumination to the bottle preform. The camera is adjusted to a suitable shooting angle through the second connecting rod to acquire images of the mouth and outer contour of the bottle preform. The system identifies the positional deviation and appearance defects of the preform based on the image and outputs the detection results and positioning data. The second rotating seat of the gripping unit drives the first connecting rod to rotate, which in turn drives the gripper to clamp the preform. Through rotation and extension, the preform is transferred from the transfer unit to the trimming unit, or defective products are removed. In the trimming unit, the first telescopic cylinder of the limiting component drives the first positioning head to move downward and position the preform opening from above. At the same time, the second telescopic cylinder of the trimming component pushes the connecting block and the motor closer to the bottle opening. The motor drives the trimming head to rotate at high speed to cut and trim the burrs at the preform opening. After trimming, all components are reset, and the gripping unit moves the preform to the next station. This production line realizes a complete closed loop of transfer, detection, and trimming, which greatly improves the trimming quality and efficiency.

[0017] Therefore, this embodiment has the following advantages compared to the prior art:

[0018] An automatic trimming and inspection device for bottle preform mouths based on vision positioning solves the problem that the traditional method of trimming bottle preforms involves operators manually trimming the bottle mouth with a knife and visually inspecting the appearance of the preform. This method is labor-intensive, has poor consistency, and is not suitable for mass production. Alternatively, simple clamps can be used to fix the preform and the flash can be removed by rotating the blade. The inspection process still mainly relies on manual sampling, making it difficult to achieve full inspection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of an automatic trimming and inspection device for the mouth of a bottle preform based on vision positioning. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the appearance inspection unit in an automatic trimming and inspection device for the mouth of a bottle preform based on vision positioning.

[0022] Figure 3 This is a schematic diagram of the trimming unit in an automatic trimming and detection device for the mouth of a bottle preform based on vision positioning.

[0023] Figure 4 This is a schematic diagram of the gripping unit in an automatic trimming and detection device for the mouth of a bottle preform based on vision positioning.

[0024] Legend:

[0025] 1-Transmission unit; 2-Appearance inspection unit; 21-Support frame; 22-Light; 23-Camera; 3-Trimming unit; 31-First support seat; 32-Rotating seat; 33-Limiting component; 331-First telescopic cylinder; 332-First positioning head; 34-Trimming component; 341-Second telescopic cylinder; 342-Connecting block; 343-Motor; 344-Trimming head; 4-Gripping unit; 41-Second rotating seat; 42-First connecting rod; 43-Gripper; 5-Second connecting rod. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0031] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Example 1:

[0033] Please see Figure 1-4 This invention provides a technical solution: an automatic trimming and detection device for the mouth of a bottle preform based on vision positioning, comprising:

[0034] Transmission Unit 1;

[0035] Appearance inspection unit 2 is located at the rear end of the transmission unit 1;

[0036] Trimming unit 3 is located at the rear end of appearance inspection unit 2;

[0037] And several grasping units 4, which are located on one side of the transmission unit 1, the appearance detection unit 2 and the trimming unit 3 respectively.

[0038] Specifically, see Figure 1-4The appearance inspection unit 2 includes a support frame 21, a light 22 and a camera 23. A second connecting rod 5 is provided on the support frame 21. The light 22 is connected to the top of the support frame 21 and the camera 23 is connected to the second connecting rod 5.

[0039] Specifically, see Figure 1-4 The light 22 is located on top of the camera 23.

[0040] The present invention provides an automatic trimming and inspection device for the mouth of a bottle preform based on vision positioning. The bottle preform enters the transmission unit from the previous process and is conveyed forward according to a set rhythm. When the bottle preform reaches the appearance inspection unit, the light located on the top of the support frame provides uniform illumination to the bottle preform. The camera is adjusted to a suitable shooting angle through the second connecting rod to acquire images of the mouth and outer contour of the bottle preform. The system identifies the positional deviation and appearance defects of the preform based on the image and outputs the detection results and positioning data. The second rotating seat of the gripping unit drives the first connecting rod to rotate, which in turn drives the gripper to clamp the preform. Through rotation and extension, the preform is transferred from the transfer unit to the trimming unit, or defective products are removed. In the trimming unit, the first telescopic cylinder of the limiting component drives the first positioning head to move downward and position the preform opening from above. At the same time, the second telescopic cylinder of the trimming component pushes the connecting block and the motor closer to the bottle opening. The motor drives the trimming head to rotate at high speed to cut and trim the burrs at the preform opening. After trimming, all components are reset, and the gripping unit moves the preform to the next station. This production line realizes a complete closed loop of transfer, detection, and trimming, which greatly improves the trimming quality and efficiency.

[0041] Therefore, this embodiment has the following advantages compared to the prior art:

[0042] An automatic trimming and inspection device for bottle preform mouths based on vision positioning solves the problem that the traditional method of trimming bottle preforms involves operators manually trimming the bottle mouth with a knife and visually inspecting the appearance of the preform. This method is labor-intensive, has poor consistency, and is not suitable for mass production. Alternatively, simple clamps can be used to fix the preform and the flash can be removed by rotating the blade. The inspection process still mainly relies on manual sampling, making it difficult to achieve full inspection.

[0043] Example 2:

[0044] See Figure 1-4The figure shows an automatic trimming and detection device for the mouth of a preform based on visual positioning provided in Embodiment 2 of the present invention. Based on the above embodiments, the following technical solutions are further improved: The trimming unit 3 includes a first support base 31, a first rotating base 32, a limiting member 33 and a trimming member 34. The trimming member 34 is connected to the second support base through a support plate. The limiting member 33 limits the mouth of the preform. The trimming member 34 abuts against the mouth of the preform. The first rotating base 32 is connected to the first support base 31.

[0045] Example 3:

[0046] See Figure 1-4 The figure shows an automatic trimming and detection device for the mouth of a bottle preform based on visual positioning provided in Embodiment 3 of the present invention. Based on the above embodiments, the following technical solutions are further improved: the limiting member 33 includes a first telescopic cylinder 331 and a first positioning head 332, and the first positioning head 332 is connected to the first telescopic cylinder 331.

[0047] Example 4:

[0048] See Figure 1-4 The figure shows an automatic trimming and detection device for the mouth of a preform based on vision positioning provided in Embodiment 4 of the present invention. Based on the above embodiments, this embodiment further improves upon the following technical solutions: The trimming component 34 includes a second telescopic cylinder 341, a connecting block 342, a motor 343, and a trimming head 344. The second telescopic cylinder 341 is connected to the support plate, the connecting block 342 is connected to the telescopic end of the second telescopic cylinder 341, the motor 343 is connected to the connecting block 342, and the trimming head 344 is connected to the motor 343.

[0049] Example 5:

[0050] See Figure 1-4 The figure shows an automatic trimming and detection device for the mouth of a bottle preform based on vision positioning provided in Embodiment 5 of the present invention. Based on the above embodiments, the following technical solutions are further improved: The gripping unit 4 includes a second rotating seat 41, a first connecting rod 42 and a gripper 43. The first connecting rod 42 is connected to the second rotating seat 41 and the gripper 43 is connected to the first connecting rod 42.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic trimming and detection device for the mouth of a bottle preform based on vision positioning, characterized in that, include: Transmission unit (1); The appearance inspection unit (2) is located at the rear end of the transmission unit (1); Trimming unit (3), which is located at the rear end of the appearance inspection unit (2); And several grasping units (4), which are located on one side of the transmission unit (1), the appearance detection unit (2) and the trimming unit (3), respectively.

2. The automatic trimming and detection device for the mouth of a bottle preform based on vision positioning according to claim 1, characterized in that, The appearance inspection unit (2) includes a support frame (21), a light (22) and a camera (23). A second connecting rod (5) is provided on the support frame (21). The light (22) is connected to the top of the support frame (21), and the camera (23) is connected to the second connecting rod (5).

3. The automatic trimming and detection device for the mouth of a bottle preform based on vision positioning according to claim 2, characterized in that, The light (22) is located on top of the camera (23).

4. The automatic trimming and detection device for the mouth of a bottle preform based on vision positioning according to claim 3, characterized in that, The trimming unit (3) includes a first support base (31), a first rotating base (32), a limiting member (33), and a trimming member (34). The trimming member (34) is connected to the second support base through a support plate. The limiting member (33) limits the preform opening. The trimming member (34) abuts against the preform opening. The first rotating base (32) is connected to the first support base (31).

5. The automatic trimming and detection device for the mouth of a bottle preform based on vision positioning according to claim 4, characterized in that, The limiting member (33) includes a first telescopic cylinder (331) and a first positioning head (332), the first positioning head (332) being connected to the first telescopic cylinder (331).

6. The automatic trimming and detection device for the mouth of a bottle preform based on vision positioning according to claim 4, characterized in that, The trimming part (34) includes a second telescopic cylinder (341), a connecting block (342), a motor (343), and a trimming head (344). The second telescopic cylinder (341) is connected to the support plate, the connecting block (342) is connected to the telescopic end of the second telescopic cylinder (341), the motor (343) is connected to the connecting block (342), and the trimming head (344) is connected to the motor (343).

7. The automatic trimming and detection device for the mouth of a bottle preform based on vision positioning according to claim 4, characterized in that, The gripping unit (4) includes a second rotating seat (41), a first connecting rod (42) and a gripper (43). The first connecting rod (42) is connected to the second rotating seat (41), and the gripper (43) is connected to the first connecting rod (42).

Images