Removing mechanism and visual inspection device

Abstract

The utility model discloses a rejecting mechanism and a visual inspection device. The rejecting mechanism comprises a first conveying belt, a second conveying belt, a first guide block and a second guide block, wherein the first conveying belt and the second conveying belt are arranged in parallel; a guide inclined surface is formed on the first guide block; the second guide block is movably arranged relative to the first guide block, and the moving path of the second guide block is arranged in the inclination direction of the guide inclined plane, so that the second guide block and the guide inclined plane are arranged at intervals or abut against each other under the action of external force, and a release state or an elimination state is constructed; in the release state, bottle bodies are conveyed by the first conveying belt; and in the removing state, the second guide block intercepts the first conveying belt, and the defective bottle bodies are conveyed by the second conveying belt under the guidance of the guide inclined plane. The utility model solves the problem that in the prior art, bad bottle bodies are easy to break when being removed.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection technology, specifically to a rejection mechanism and a visual inspection device. Background Technology

[0002] When the vision system detects a defective bottle, the cylinder receives the signal and pushes the top block to impact the bottle laterally, causing it to detach from the main conveyor line. However, because the instantaneous thrust of the cylinder acts directly on the bottle, the defective bottle is subjected to a high acceleration impact in a very short time. For thin-walled PET bottles, this can easily cause the bottle to break, making secondary visual inspection impossible. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rejection mechanism and a visual inspection device to solve the problem that the existing technology is prone to breaking when rejecting defective bottles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Exclusion criteria include:

[0006] The conveying assembly includes a first conveyor belt and a second conveyor belt, which are arranged side by side and have the same conveying direction.

[0007] The first guide block has a guide ramp, one end of which is suspended above the first conveyor belt, and the other end extends toward the second conveyor belt.

[0008] The second guide block is movably configured relative to the first guide block. The movement path of the second guide block is set along the inclination direction of the guide slope, so that under the action of external force, the second guide block and the guide slope are spaced apart or abutted, and configured into a release state or a rejection state.

[0009] In the release state, the bottle is conveyed by the first conveyor belt;

[0010] In the rejection state, the second guide block intercepts the first conveyor belt and, guided by the guide ramp, causes the defective bottle to be conveyed by the second conveyor belt.

[0011] Furthermore, the guide ramp is defined with its first end and second end being the two ends closest to the first conveyor belt and the second conveyor belt, respectively. The first end of the guide ramp is provided with a first positioning section, which is suspended above the first conveyor belt and is set along its conveying direction.

[0012] Furthermore, the first end of the guide slope is connected to the first positioning segment via a connecting segment, which is arranged at an angle.

[0013] Furthermore, the second end of the guide slope is provided with a second positioning section, which is suspended above the second conveyor belt and is arranged along its conveying direction.

[0014] Furthermore, a support block is provided between the first conveyor belt and the second conveyor belt, and the second positioning section is fixed to the support block.

[0015] Furthermore, the support block is provided with several hanging rings.

[0016] Furthermore, the first conveyor belt is provided with a mounting block along its conveying direction, the mounting block protruding outward to form a protrusion, the second guide block is slidably disposed on the protrusion, and the second guide block is suspended relative to the first conveyor belt.

[0017] A visual inspection device, including the rejection mechanism described above.

[0018] Compared with the prior art, this utility model has the following beneficial effects: the bottle body is conveyed by the first conveyor belt. When it is necessary to filter defective bottles, the second guide block moves under the action of external force to the guide slope that abuts against the first guide block. This not only intercepts and closes the conveying channel formed by the first conveyor belt, but also guides the defective bottles to the second conveyor belt by the cooperation of the guide slope and the second guide block. The defective bottles are then conveyed by the second conveyor belt, replacing the original direct impact rejection method. This reduces the instantaneous impact speed of the defective bottles, ensuring the integrity of the defective bottles for secondary inspection and reducing costs. Furthermore, it allows good and defective products to be conveyed by two different conveyor belts, achieving the purpose of diversion and uninterrupted production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the automatic rejection device in the release state according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the automatic rejection device in the rejection state according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the first guide block in one embodiment of the present invention.

[0022] The reference numerals in the accompanying drawings include:

[0023] 1. First conveyor belt; 2. Second conveyor belt; 3. First guide block; 301. Guide slope; 302. First positioning section; 303. Connecting section; 304. Second positioning section; 4. Second guide block; 5. Support block; 6. Hanging ring; 7. Mounting block; 8. Protrusion. Detailed Implementation

[0024] The present invention will be further described in detail below through specific embodiments:

[0025] In the embodiments of this utility model, such as Figure 1 , Figure 2 As shown, the rejection mechanism includes: a conveying assembly, a first guide block 3, and a second guide block 4; the conveying assembly includes a first conveyor belt 1 and a second conveyor belt 2, which are arranged side by side and have the same conveying direction; the first guide block 3 has a guide slope 301, one end of which is suspended above the first conveyor belt 1, and the other end extends towards the second conveyor belt 2; the second guide block 4 is movably arranged relative to the first guide block 3, and the movement path of the second guide block 4 is arranged along the inclined direction of the guide slope 301, so that under the action of external force, the second guide block 4 and the guide slope 301 are spaced apart or abutted, and configured into a release state or a rejection state; in the release state, the bottle is conveyed by the first conveyor belt 1; in the rejection state, the second guide block 4 intercepts the first conveyor belt 1, and guided by the guide slope 301, the defective bottle is conveyed by the second conveyor belt 2.

[0026] Specifically, in this embodiment of the invention, the first conveyor belt 1 and the second conveyor belt 2 are arranged side by side, with their conveying directions aligned. The first conveyor belt 1 serves as the main conveyor belt, used to transport good products; the second conveyor belt 2 serves as the secondary conveyor belt, used to transport defective products identified by the visual inspection machine. By setting up two conveyor belts, good and defective products can be transported separately, enabling rejection after visual inspection without stopping the machine. It also facilitates the classification, storage, and transfer of different bottles; for example, good products proceed to the next stage, the packaging machine, while defective products can be recycled or re-inspected by the front-end visual inspection machine to avoid misidentification.

[0027] In this embodiment of the invention, in order to transport defective bottles out via the second conveyor belt 2, a first guide block 3 is provided, such as... Figures 1-3As shown, the guide slope 301 formed by the first guide block 3 is inclined, with one end suspended above the first conveyor belt 1 and the other end facing the second conveyor belt 2. Additionally, a second guide block 4 is provided. The second guide block 4 can move relative to the first guide block 3 under the action of an external force, moving away from the guide slope 301 and then spaced apart from it, forming a release state; conversely, the second guide block 4 can move towards the guide slope 301 until it comes into contact with it, forming a rejection state.

[0028] Specifically, in the release state, since the guide ramp 301 and the second guide block 4 are spaced apart, forming a gap, the bottle can move towards this gap under the action of the first conveyor belt 1, and after passing through the gap, it is conveyed out by the first conveyor belt 1, completing the release and transportation of good products. Conversely, in the rejection state, the second guide block 4 abuts against the guide ramp 301, intercepting the defective bottle conveyed by the first conveyor belt 1, and guided by the ramp, the defective bottle enters the second conveyor belt 2 along the ramp, and is transferred out by the second conveyor belt 2, thereby removing the defective product from the good products. Due to the continuous obstruction of the second guide block 4 and the continuous conveying of the first conveyor belt 1, the defective bottle enters the second conveyor belt 2 along the ramp formed by the second guide block 4, reducing the impact on the defective bottle, thus allowing it to be rejected without damaging the bottle, facilitating secondary inspection. Of course, the driving method of the second guide block 4 can be linear motion of the cylinder, or a combination of motor and slider. It is connected to a vision detector through a PLC controller, so that the vision detector outputs a rejection signal to make the second guide block 4 perform the corresponding action. Since this control method is existing technology, it will not be described in detail here.

[0029] On the other hand, the suspended guide ramp 301 can avoid contact friction with the corresponding conveyor belt, and its tilt angle is equal to the tilt angle of the second guide block 4 to reduce the direct impact on the bottle.

[0030] This embodiment allows for two modes: release and rejection, by moving the second guide block 4 relative to the first guide block 3. In the release mode, good products can be directly conveyed out via the first conveyor belt 1. In the rejection mode, defective products are guided to the second conveyor belt 2 by the cooperation of the guide ramp 301 and the second guide block 4, and then conveyed out via the second conveyor belt 2. Since both good and defective products are initially located on the first conveyor belt 1, the cooperation of the guide ramp 301 and the second guide block 4 can reject defective products. This replaces the original direct-push rejection method using a cylinder, reducing damage to the bottle surface and facilitating secondary inspection and recycling.

[0031] like Figures 1-3As shown, in one embodiment, the guide ramp 301 is defined with its first end and second end near the first conveyor belt 1 and the second conveyor belt 2, respectively. The first end of the guide ramp 301 is provided with a first positioning segment 302, which is suspended above the first conveyor belt 1 and arranged along its conveying direction. Specifically, in the release state, in order to guide the bottle to the first conveyor belt 1, this embodiment provides a first positioning segment 302 at the first end of the guide ramp 301. This first positioning segment is also suspended and extends along the conveying direction of the first conveyor belt 1. In this way, the bottle at the first conveyor belt 1 can form a sliding contact with the first positioning segment 302, so as to constrain its posture on the first conveyor belt 1 and play a guiding and positioning role.

[0032] Preferably, such as Figure 3 As shown, in one embodiment, the first end of the guide slope 301 is connected to the first positioning segment 302 via a connecting segment 303, which is arranged at an inclination. Specifically, since the guide slope 301 is inclined and the first positioning segment 302 is arranged along the conveying direction of the first conveyor belt 1, an angle is formed between the guide slope 301 and the first positioning segment 302. To ensure a smooth transition at the connection point, this embodiment provides a connecting segment 303 at the connection point, using the connecting segment 303 to smoothly connect the first end of the guide slope 301 to the first positioning segment 302, with the connection point rounded.

[0033] like Figures 1-3 As shown, in one embodiment, the second end of the guide slope 301 is provided with a second positioning section 304. The second positioning section 304 is suspended above the second conveyor belt 2 and is arranged along its conveying direction. Specifically, in order to constrain the posture of the bottle at the second conveyor belt 2, this embodiment provides a second positioning section 304 at the second end of the guide slope 301. The second positioning section 304 is also suspended and arranged along the conveying direction of the second conveyor belt 2. In this way, the guided bottle enters the second conveyor belt 2 and can slide and fit against the second positioning section 304, so that it slides out of the second conveyor belt 2 along the extension direction of the second positioning section 304, avoiding it from splashing everywhere after sliding out.

[0034] like Figure 1 , Figure 2As shown, in one embodiment, a support block 5 is provided between the first conveyor belt 1 and the second conveyor belt 2, and the second positioning segment 304 is fixed to the support block 5. Specifically, in order to fix the first guide block 3, this embodiment sets a support block 5 between the first conveyor belt 1 and the second conveyor belt 2, and the second positioning segment 304 is fixed at the support block 5, so as to use the support block 5 to provide overall support and fixation for the first guide block 3, so as to avoid instability in the conveying posture of the bottle after its displacement. Of course, another support block 5 can also be set on the second conveyor belt 2, and the two support blocks 5 are arranged opposite to each other, forming a conveying channel between them on the second conveyor belt 2.

[0035] like Figure 1 , Figure 2 As shown, in one embodiment, the support block 5 is provided with a plurality of hanging rings 6. The hanging rings 6 can be attached to a collection box to facilitate the collection of defective bottles falling from the second conveyor belt 2.

[0036] like Figure 2 As shown, in one embodiment, the first conveyor belt 1 is provided with a mounting block 7 along its conveying direction. The mounting block 7 protrudes outward to form a protrusion 8. The second guide block 4 is slidably disposed on the protrusion 8, and the second guide block 4 is suspended relative to the first conveyor belt 1. Specifically, since the second guide block 4 needs to move relative to the first guide block 3, it needs to move above the first conveyor belt 1. To avoid the two from coming into contact and affecting their respective movement trajectories and speeds, this embodiment provides a mounting block 7 on one side of the first conveyor belt 1. The mounting block 7 is provided with an integral protrusion 8 for supporting the second guide block 4, so that the second guide block 4 and the protrusion 8 form a sliding connection. Under the action of the protrusion 8, the second guide block 4 is suspended relative to the first conveyor belt 1, and the two do not interfere with each other and can be operated independently during operation.

[0037] This embodiment also provides a visual inspection device, including the rejection mechanism described above. The specific structure of the rejection mechanism is the same as described in the above embodiment. Since this visual inspection device adopts all the technical solutions of the above embodiment, it has at least all the beneficial effects brought about by the technical solutions of the above embodiment, which will not be described in detail here.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rejection mechanism, applied in a visual inspection device, for rejecting defective bottles, characterized in that: The rejection mechanism includes: The conveying assembly includes a first conveyor belt and a second conveyor belt, which are arranged side by side and have the same conveying direction. The first guide block has a guide ramp, one end of which is suspended above the first conveyor belt, and the other end extends toward the second conveyor belt. The second guide block is movably configured relative to the first guide block. The movement path of the second guide block is set along the inclination direction of the guide slope, so that under the action of external force, the second guide block and the guide slope are spaced apart or abutted, and configured into a release state or a rejection state. In the release state, the bottle is conveyed by the first conveyor belt; In the rejection state, the second guide block intercepts the first conveyor belt and, guided by the guide ramp, causes the defective bottle to be conveyed by the second conveyor belt.

2. The rejection mechanism as described in claim 1, characterized in that, The guide ramp is defined with its first end and second end near the first conveyor belt and the second conveyor belt, respectively. The first end of the guide ramp is provided with a first positioning section, which is suspended above the first conveyor belt and set along its conveying direction.

3. The rejection mechanism as described in claim 2, characterized in that, The first end of the guide ramp is connected to the first positioning segment by a connecting segment, which is arranged at an angle.

4. The rejection mechanism as described in claim 2, characterized in that, The second end of the guide ramp is provided with a second positioning section, which is suspended above the second conveyor belt and is set along its conveying direction.

5. The rejection mechanism as described in claim 4, characterized in that, A support block is provided between the first conveyor belt and the second conveyor belt, and the second positioning section is fixed to the support block.

6. The rejection mechanism as described in claim 5, characterized in that, The support block is provided with several hanging rings.

7. The rejection mechanism as described in any one of claims 1-6, characterized in that, The first conveyor belt is provided with a mounting block along its conveying direction. The mounting block protrudes outward to form a protrusion. The second guide block is slidably disposed on the protrusion and is suspended relative to the first conveyor belt.

8. A visual inspection device, characterized in that, include: The rejection mechanism as described in any one of claims 1-7.

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