Pencil surface defect detection mechanism

Abstract

The utility model discloses a pencil surface defect detection mechanism which comprises a machine frame, a first conveying belt is installed in the machine frame, a plurality of sets of containing grooves are formed in the outer side of the first conveying belt, clamping structures are arranged in the containing grooves, and each clamping structure is composed of a telescopic rod, a reset spring and an arc-shaped clamping strip. The two sides of the inner wall of the storage groove are each fixedly connected with two telescopic rods, the outer sides of the telescopic rods are sleeved with reset springs, the ends, away from the storage groove, of the telescopic rods are fixedly connected with arc-shaped clamping strips, anti-skid layers are arranged on the inner walls of the arc-shaped clamping strips, and a pencil body is clamped in the clamping structure. Compared with an existing detection mechanism, the pencil clamping and limiting device can clamp and limit pencils with different sizes and lengths through the design, the phenomenon that the pencils are driven to roll and deviate when the pencils are conveyed by the conveying belt is avoided, and the overall practicability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of pencil manufacturing technology, specifically to a pencil surface defect detection mechanism. Background Technology

[0002] Some pencils need to be sharpened before leaving the factory. Sharpened pencil tips may have defects such as mismatch between the lead color and the pencil barrel, pumped lead, broken lead, off-center lead, damage, excessive sharpness, excessive flatness, or cracks at the glue joint. Therefore, it is necessary to conduct a qualification test on the sharpened pencil tips.

[0003] Among them, the Chinese patent for a pencil tip defect detection device (publication number CN103698343A) specifically includes a support, a photo acquisition device, and a light source. The photo acquisition device is located on the upper part of the support, and two plane mirrors are located on the lower part of the support. The lens of the photo acquisition device faces the lower part of the support. The two plane mirrors are located on both sides of the lens optical axis and form an angle of less than 90 degrees with the lens optical axis. The light source is ring-shaped and is located on the side of the support, above and behind the two plane mirrors. Pencils are arranged parallel to each other on a conveyor belt and pass through the support. The sharpened pencil tip extends to the outside of the conveyor belt and is located above the plane mirrors. The ring-shaped light source illuminates the entire circumference of the pencil tip, highlighting any defects. The photo acquisition device takes a picture of the pencil tip from above, simultaneously capturing the image of the pencil tip in the two plane mirrors, thus obtaining an image of the entire circumference of the pencil tip. The image analysis module in the controller compares the acquired image with a standard image of a qualified product to achieve conformity detection.

[0004] In the aforementioned patent, pencils are arranged in parallel on a conveyor belt for transmission and testing. However, most existing pencils have relatively smooth surfaces. When the conveyor belt transports the pencils, the lack of a limiting structure makes it easy for the pencils to roll, which can cause the pencils to shift and affect the test results.

[0005] Therefore, it is particularly important to design a pencil surface defect detection mechanism to solve the above-mentioned defects. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model designs a pencil surface defect detection mechanism. This detection mechanism aims to solve the technical problem that, under existing technologies, when a conveyor belt transports a pencil, the lack of a limiting structure makes it easy for the pencil to roll, resulting in a deviation in the pencil's position and affecting the detection results.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A pencil surface defect detection mechanism includes a frame, a conveyor belt installed inside the frame, several sets of receiving slots on the outer side of the conveyor belt, a clamping structure inside the receiving slot, the clamping structure consisting of a telescopic rod, a return spring and an arc-shaped clamping strip, two sets of telescopic rods fixedly connected to both sides of the inner wall of the receiving slot, a return spring sleeved on the outer side of the telescopic rod, an arc-shaped clamping strip fixedly connected to the end of the telescopic rod away from the receiving slot, an anti-slip layer on the inner wall of the arc-shaped clamping strip, a pencil body clamped inside the clamping structure, a detection device installed on one side of the top of the frame, a pair of longitudinal picking structures installed on one side of the frame, a transverse picking structure installed on the left side of the longitudinal picking structures on the outer side of the frame, and a second conveyor belt installed inside the frame below the left end of the first conveyor belt.

[0009] As a preferred embodiment of this utility model, the storage slot is designed with a U-shape, and limit strips are fixedly connected to both sides of the top of the storage slot.

[0010] As a preferred embodiment of this utility model, the end of the pencil body with the pencil tip corresponds to the position of the detection device, and the detection device is connected to the computer via a wire.

[0011] As a preferred embodiment of this utility model, the longitudinal retrieval structure is composed of an electric telescopic rod and a U-shaped frame. The top of the electric telescopic rod is fixedly connected to the U-shaped frame. The electric telescopic rod is connected to a computer via a wire. The transverse retrieval structure is the same as the longitudinal retrieval structure.

[0012] As a preferred embodiment of this utility model, the outer side of the second conveyor belt is provided with a sponge protective pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] First, the return spring drives the arc-shaped clamping bar to clamp and fix the middle section of pencils of different sizes and thicknesses, preventing the pencils from rolling when the conveyor belt transports them, which would cause the pencils to shift in position and improve the accuracy of pencil detection.

[0015] Secondly, the detection device is connected to the computer via wires to perform a pass / fail test on the pencil tip. When a defective product is found, the computer controls the longitudinal picking structure via wires to use an electric telescopic rod to drive the U-shaped frame to remove the defective pencil from the conveyor belt, making it easy for staff to collect.

[0016] Finally, the transverse picking structure pushes out the qualified pencils that have completed inspection, causing them to fall onto the second conveyor belt for centralized collection. The sponge protective pad provides protection for the pencils, preventing them from falling and bumping into each other, which could cause the lead to break. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a pencil surface defect detection mechanism.

[0018] Figure 2 This is a schematic diagram of the internal structure of a pencil surface defect detection mechanism.

[0019] Figure 3 This is a schematic diagram of the side structure of a pencil surface defect detection mechanism;

[0020] Figure 4 for Figure 2 A magnified structural diagram of region A in the middle.

[0021] In the diagram: 1. Frame; 2. Conveyor belt one; 201. Storage trough; 2011. Limiting strip; 202. Clamping structure; 2021. Telescopic rod; 2022. Return spring; 2023. Arc-shaped clamping strip; 2024. Anti-slip layer; 3. Pencil body; 4. Detection device; 5. Longitudinal retrieval structure; 501. Electric telescopic rod; 502. U-shaped frame; 6. Lateral retrieval structure; 7. Conveyor belt two; 701. Sponge protective pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] This utility model provides a pencil surface defect detection mechanism, which aims to solve the technical problem that in the prior art, when a conveyor belt transports a pencil, the lack of a limiting structure makes it easy for the pencil to roll, resulting in a displacement of the pencil position and affecting the detection results.

[0025] Please see Figures 1-4 This utility model provides a technical solution:

[0026] A pencil surface defect detection mechanism includes a frame 1, a conveyor belt 2 installed inside the frame 1, and several sets of receiving slots 201 with U-shaped structure on the outer side of the conveyor belt 2. Limiting strips 2011 are fixedly connected to both sides of the top of each receiving slot 201, limiting the sides of the receiving slot 201. A clamping structure 202 is provided inside the receiving slot 201, consisting of a telescopic rod 2021, a return spring 2022, and an arc-shaped clamping strip 2023. Two sets of telescopic rods 2021 are fixedly connected to both sides of the inner wall. A return spring 2022 is sleeved on the outer side of the telescopic rod 2021. An arc-shaped clamping strip 2023 is fixedly connected to the end of the telescopic rod 2021 away from the storage slot 201. The return spring 2022 drives the arc-shaped clamping strip 2023 to clamp and fix the pencil body 3. The telescopic rod 2021 enhances the stability of the extension and retraction of the return spring 2022. The inner wall of the arc-shaped clamping strip 2023 is provided with an anti-slip layer 2024, which enhances the clamping stability of the arc-shaped clamping strip 2023.

[0027] Please refer to Figure 1 , Figure 2 and Figure 3 The internal clamping structure 202 holds the pencil body 3. A detection device 4 is installed on the top side of the frame 1. The end of the pencil body 3 with the pencil tip corresponds to the position of the detection device 4. The detection device 4 is connected to the computer through a wire to detect the pencil tip of the pencil body 3.

[0028] For further details, please refer to Figure 1 and Figure 3 A pair of longitudinal retrieval structures 5 are installed on one side of the frame 1. The longitudinal retrieval structure 5 consists of an electric telescopic rod 501 and a U-shaped frame 502. The top of the electric telescopic rod 501 is fixedly connected to the U-shaped frame 502. The electric telescopic rod 501 is connected to the computer through a wire. When a defective product appears, the computer controls the longitudinal retrieval structure 5 through the wire to use the electric telescopic rod 501 to drive the U-shaped frame 502 to remove the defective pencil body 3 from the conveyor belt 2, so that the staff can collect it. A transverse retrieval structure 6 is installed on the left side of the longitudinal retrieval structure 5, located on the outside of the frame 1. The transverse retrieval structure 6 has the same structure as the longitudinal retrieval structure 5.

[0029] For further details, please refer to Figure 1 , Figure 2 and Figure 3 Inside the frame 1, below the left end of the first conveyor belt 2, a second conveyor belt 7 is installed. The outer side of the second conveyor belt 7 is provided with a sponge protective pad 701. The transverse picking structure 6 pushes out the qualified pencil body 3 after inspection, causing it to fall onto the second conveyor belt 7 for centralized collection. The sponge protective pad 701 provides protection for the pencil body 3, preventing the pencil body 3 from falling and bumping, causing the lead to break.

[0030] In addition, it should be noted that the conveyor belt, the detection device 4 and the electric telescopic rod 501 are all existing technologies, and their internal working principles and operating procedures will not be described in detail here.

[0031] The working process of this utility model is as follows: First, the pencil body 3, with one end of the pencil tip facing the detection device 4, is embedded in the storage groove 201. The return spring 2022 drives the arc-shaped clamping strip 2023 to clamp and fix the pencil body 3, so as to be suitable for pencil bodies 3 of different sizes and thicknesses. The telescopic rod 2021 enhances the stability of the extension and retraction of the return spring 2022, and the anti-slip layer 2024 enhances the clamping stability of the arc-shaped clamping strip 2023. The conveyor belt 1 2 carries the pencil body 3 to the detection device 4 for detection. When a defective product is found, the computer controls the longitudinal picking structure 5 through the wire to use the electric telescopic rod 501 to drive the U-shaped frame 502 to remove the defective pencil body 3 from the conveyor belt 1 2, so as to facilitate the recycling by the staff. The transverse picking structure 6 pushes out the qualified pencil body 3 after the inspection, so that it falls onto the conveyor belt 2 7 for transportation and centralized collection. The sponge protective pad 701 provides protection for the pencil body 3 to prevent the pencil body 3 from falling and bumping and breaking the lead.

[0032] The entire operation process is simple and convenient. Compared with existing testing institutions, this utility model can clamp and limit pencils of different sizes and lengths through its design, preventing the pencils from rolling and deviating when the conveyor belt transports them, thus enhancing the overall practicality.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pencil surface defect detection mechanism, comprising a frame (1), characterized in that: The frame (1) is equipped with a conveyor belt (2) inside. Several sets of storage slots (201) are provided on the outer side of the conveyor belt (2). The storage slots (201) are equipped with clamping structures (202). The clamping structures (202) are composed of telescopic rods (2021), return springs (2022) and arc-shaped clamping strips (2023). Two sets of telescopic rods (2021) are fixedly connected to both sides of the inner wall of the storage slots (201). The return springs (2022) are sleeved on the outer side of the telescopic rods (2021). The telescopic rods (2021) are far away from the storage slots. (201) has an arc-shaped clamping strip (2023) fixedly connected to one end. The inner wall of the arc-shaped clamping strip (2023) is provided with an anti-slip layer (2024). The clamping structure (202) holds the pencil body (3) inside. A detection device (4) is installed on one side of the top of the frame (1). A pair of longitudinal picking structures (5) are installed on one side of the frame (1). A transverse picking structure (6) is installed on the left side of the longitudinal picking structure (5) outside the frame (1). A second conveyor belt (7) is installed inside the frame (1) below the left end of the first conveyor belt (2).

2. The pencil surface defect detection mechanism according to claim 1, characterized in that: The storage slot (201) has a U-shaped structure design, and limit strips (2011) are fixedly connected to both sides of the top of the storage slot (201).

3. The pencil surface defect detection mechanism according to claim 1, characterized in that: The pencil body (3) has a pencil tip at one end that corresponds to the position of the detection device (4), which is connected to the computer via a wire.

4. The pencil surface defect detection mechanism according to claim 1, characterized in that: The longitudinal retrieval structure (5) consists of an electric telescopic rod (501) and a U-shaped frame (502). The top of the electric telescopic rod (501) is fixedly connected to the U-shaped frame (502). The electric telescopic rod (501) is connected to the computer through a wire. The transverse retrieval structure (6) has the same structure as the longitudinal retrieval structure (5).

5. The pencil surface defect detection mechanism according to claim 1, characterized in that: The outer side of the second conveyor belt (7) is provided with a sponge protective pad (701).

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