Automatic freezing deburring device for injection molding products

Abstract

The automatic freezing deburring device comprises a workbench, a mesh belt conveyor is installed on the top of the workbench, and a defective product conveyor is installed on the side, close to the output end of the mesh belt conveyor, of the front face of the workbench. A sorting manipulator is installed on the side, close to the output end of the mesh belt conveyor, of the top of the workbench, a loading frame is installed on the other side, close to the output end of the mesh belt conveyor, of the top of the workbench, and an electric push rod is installed at the bottom of one end of the loading frame. According to the utility model, a detection link is tightly combined with processes of conveying, deburring and the like, so that an efficient and coherent production process is formed, workpieces can be detected in the conveying process, the CCD detector is adopted to detect the appearances of the workpieces in a high-precision manner, and the sorting manipulator is used for sorting the workpieces according to instructions of the CCD detector. And the unqualified workpieces are automatically picked up and put on the defective product conveyor, so that the unqualified workpieces are immediately removed, the accuracy of product quality control is improved, and the defective rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of frozen trimming, specifically relates to a kind of automatic frozen deburring device of injection molding product. BACKGROUND

[0002] In the production process of injection molding product, flash or burr is often generated in the edge part after product forming, which not only affects the appearance quality of the product, but also may affect the functionality and use safety of the product. Traditional deburring methods, such as manual trimming and mechanical cutting, have problems such as low efficiency, high cost and possible damage to the product body. With the progress of science and technology and the development of automation technology, people have begun to explore more efficient and safe deburring methods. The frozen burr removal technology emerged as the times require, which takes advantage of the phase change characteristics of rubber and plastic materials at different temperatures, reduces the temperature of the product and its flash to a certain range, so that the flash becomes brittle at low temperature, while the product itself still maintains a certain elasticity. Within the time difference caused by this temperature difference, high-speed plastic pellets are used to impact the product, which can accurately remove the brittle flash without damaging the product body.

[0003] The patent CN213561974U discloses a pipeline type frozen burr removal machine. The frozen burr removal machine uses a screen conveyor belt and an electric roller, combined with a pipeline liquid nitrogen injection port and a shot blasting port, to make the burr removal process pipeline, which can efficiently cooperate with the automatic pipeline to greatly improve the work efficiency. The used high-molecular pellets are automatically filled back into the shot blasting machine after removing the burr corner waste by magnetic attraction roller, which greatly improves the work efficiency.

[0004] Although the above-mentioned pipeline type frozen burr removal machine has significant advantages in improving work efficiency and automation process, it still has some shortcomings. Specifically, the device does not include a mechanism for appearance detection of trimmed workpieces in design and function, and cannot automatically identify and reject unqualified trimmed workpieces, which may lead to unqualified products flowing into subsequent processes, increasing the rejection rate and rework cost of the production line.

[0005] Therefore, it is necessary to invent an automatic frozen deburring device for injection molding product to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide an automatic frozen deburring device for injection molding product to solve the above-mentioned problems in the art.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of automatic frozen deburring device of injection molding product, including workbench, the top of workbench is equipped with mesh belt conveyor, the side of the front of workbench close to the output end of mesh belt conveyor is equipped with substandard product conveyor, the side of the top of workbench close to the output end of mesh belt conveyor is equipped with sorting manipulator, the side of the top of workbench close to the output end of mesh belt conveyor is equipped with loading frame, and the bottom of one end of loading frame is equipped with electric push rod, the bottom end of electric push rod is equipped with CCD detector, and the output end of mesh belt conveyor is directly above the CCD detector, and the input end of substandard product conveyor is close to the side of the sorting manipulator, and the sorting manipulator is electrically connected with CCD detector, and one side of workbench is provided with a collection car, and the output end of substandard product conveyor is directly below the collection car.

[0008] By integrating mesh belt conveyor, substandard product conveyor, sorting manipulator and CCD detector and other key components, the full-automatic process from workpiece input to output, detection and sorting is realized, and the production efficiency and product quality are improved.

[0009] Preferably, the top of the workbench is provided with an isolation cover, and the isolation cover is located directly above the mesh belt conveyor.

[0010] By installing an isolation cover on the workbench, a closed working environment is provided for the frozen deburring process, reducing the influence of external factors on the production process, and also helping to protect the operator from potential hazards such as liquid nitrogen and shot blasting.

[0011] Preferably, a liquid nitrogen quick freezer is installed on one side of the top of the isolation cover, and a shot blasting machine is installed on the other side of the top of the isolation cover.

[0012] By installing a liquid nitrogen quick freezer and a shot blasting machine on the top of the isolation cover, a double treatment of frozen embrittlement and deburring is provided for the workpiece.

[0013] Preferably, a liquid nitrogen injection port is installed on the inner top surface of the isolation cover, and the input end of the liquid nitrogen injection port is connected with the output end of the liquid nitrogen quick freezer.

[0014] By spraying liquid nitrogen uniformly to the surface of the workpiece through the liquid nitrogen injection port, the rapid frozen embrittlement of the workpiece is realized, providing favorable conditions for subsequent deburring treatment.

[0015] Preferably, a projectile launching port is installed on the inner top surface of the isolation cover, and the input end of the projectile launching port is connected with the output end of the shot blasting machine.

[0016] By spraying plastic projectiles at high speed through the projectile launching port, the workpiece is impacted, effectively removing burrs and flash on the surface of the workpiece.

[0017] Preferably, both ends of the isolation cover are open type design, the isolation cover is provided with a protective door curtain at both ends, and the inner wall of the isolation cover is provided with a sandwich layer filled with heat insulation cotton.

[0018] The open type design of the isolation cover facilitates the entry and exit of the workpiece, and the protective door curtain effectively prevents the leakage of liquid nitrogen and projectiles, ensuring the safety of the production process; the design of the heat insulation cotton improves the heat preservation performance of the isolation cover, reducing energy waste.

[0019] Preferably, the workbench top is provided with a slope collection groove located directly below the mesh belt conveyor.

[0020] The design of the slope collection groove enables the projectiles falling during the shot blasting process to be smoothly collected and guided to the discharge port, facilitating subsequent recycling.

[0021] Preferably, the workbench bottom is provided with a discharge port connected to the lowest end of the slope collection groove, and the workbench bottom is provided with a second collection vehicle located directly below the discharge port.

[0022] Through the discharge port and the second collection vehicle, automatic collection and storage of the projectiles are achieved.

[0023] In the above technical solution, the technical effects and advantages of the present application are as follows:

[0024] The detection link is closely combined with the conveying and deburring processes to form an efficient and continuous production process, and the workpiece can be detected during the conveying process. The CCD detector is used for image capture and comparison analysis, which can realize high-precision detection of the appearance of the workpiece. The sorting manipulator automatically picks up and puts the unqualified workpiece on the defective product conveyor according to the instructions of the CCD detector, realizes the instant rejection of unqualified products, improves the accuracy of product quality control, and reduces the rate of defective products. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a first perspective overall structure schematic view of the present application;

[0026] Figure 2 It is a second perspective overall structure schematic view of the present application;

[0027] Figure 3 It is a first perspective structure sectional view of the present application;

[0028] Figure 4 It is a second perspective structure sectional view of the present application;

[0029] Figure 5 It is a first perspective structure sectional view of the present application; Figure 4 A structure enlarged view in the present application

[0030] Reference signs:

[0031] 1, workbench; 2, mesh belt conveyor; 3, substandard product conveyor; 4, sorting manipulator; 5, loading frame; 6, electric push rod; 7, CCD detector; 8, No. 1 collection vehicle; 9, isolation cover; 10, liquid nitrogen quick freezer; 11, shot blasting machine; 12, liquid nitrogen injection port; 13, pellet ejection port; 14, protective door curtain; 15, heat insulation cotton; 16, inclined slope material collecting groove; 17, discharge port; 18, No. 2 collection vehicle. DETAILED DESCRIPTION

[0032] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with the drawings.

[0033] The utility model provides a kind of automatic freezing deburring device for injection molding product as shown in Figures 1-5 The utility model provides a kind of automatic freezing deburring device for injection molding product as shown in It includes workbench 1, workbench 1 top is equipped with mesh belt conveyor 2, workbench 1 front side is close to the output end of mesh belt conveyor 2 one side and is equipped with substandard product conveyor 3, workbench 1 top is close to the output end of mesh belt conveyor 2 one side and is equipped with sorting manipulator 4, workbench 1 top is close to the output end of mesh belt conveyor 2 other side and is equipped with loading frame 5, and one end of loading frame 5 bottom is equipped with electric push rod 6, and electric push rod 6 bottom end is equipped with CCD detector 7, and CCD detector 7 is located in the output end of mesh belt conveyor 2 directly above, and sorting manipulator 4 is close to the input end of substandard product conveyor 3 and is arranged, and sorting manipulator 4 and CCD detector 7 are electrically connected, and one side of workbench 1 is provided with No. 1 collection vehicle 8, and No. 1 collection vehicle 8 is located in the output end of substandard product conveyor 3 directly below.

[0034] In one aspect of the embodiment, workbench 1 top is equipped with isolation cover 9, and isolation cover 9 is located in the directly above of mesh belt conveyor 2, and isolation cover 9 top one side is equipped with liquid nitrogen quick freezer 10, and isolation cover 9 top other side is equipped with shot blasting machine 11, and isolation cover 9 inner top surface is equipped with liquid nitrogen injection port 12, and the input end of liquid nitrogen injection port 12 is connected with the output end of liquid nitrogen quick freezer 10, and isolation cover 9 inner top surface is equipped with pellet ejection port 13, and the input end of pellet ejection port 13 is connected with the output end of shot blasting machine 11, and the both ends of isolation cover 9 are open type design, and protective door curtain 14 is equipped in the both ends of isolation cover 9, and the inner wall of isolation cover 9 is provided with interlayer, and the interlayer is filled with heat insulation cotton 15, and workbench 1 top is provided with inclined slope material collecting groove 16, and inclined slope material collecting groove 16 is located in the directly below of mesh belt conveyor 2, and workbench 1 bottom is provided with discharge port 17, and discharge port 17 is connected with the lowest end of inclined slope material collecting groove 16, and workbench 1 bottom is provided with No. 2 collection vehicle 18, and No. 2 collection vehicle 18 is located in the directly below of discharge port 17.

[0035] The utility model discloses a working principle:

[0036] Refer to the description attached Figures 1-5 When using the utility model, first, the injection molding product workpiece to be handled is placed neatly at the input end of the mesh belt conveyor 2, the mesh belt conveyor 2 is started, and normal operation is ensured so that the workpiece can be continuously and stably sent into the isolation cover 9.

[0037] When the workpiece enters the inside of the isolation cover 9, the liquid nitrogen quick freezer 10 is started, and the liquid nitrogen in the liquid nitrogen quick freezer 10 is uniformly sprayed to the surface of the workpiece through the liquid nitrogen spraying port 12, so that the workpiece and the flash and burrs thereon are rapidly cooled to a brittle state, the freezing treatment time is determined according to the material and thickness of the workpiece, the flash and burrs need to be completely brittle, and meanwhile, the workpiece body is prevented from being damaged.

[0038] After the workpiece is frozen, the shot blasting machine 11 is started, the plastic pellets in the shot blasting machine 11 are sprayed out at high speed through the pellet projection port 13, the workpiece is impacted, the impact force of the plastic pellets knocks off the brittle flash and burrs from the workpiece, and the workpiece body is not damaged because it is not completely brittle, and in the shot blasting process, the force of the shot blasting machine 11 needs to be moderate to achieve the best deburring effect.

[0039] The height of the CCD detector 7 is adjusted through the electric push rod 6 to obtain the best observation field of view, when the workpiece after trimming treatment passes below the CCD detector 7, the CCD detector 7 captures the image of the appearance of the workpiece and carries out comparison analysis.

[0040] If the workpiece is qualified, the workpiece is directly conveyed to the subsequent assembly line through the output end of the mesh belt conveyor 2 for subsequent processing, if the workpiece is unqualified, the CCD detector 7 controls the sorting manipulator 4 to pick up the workpiece and put the workpiece into the input end of the defective product conveyor 3, and the defective product conveyor 3 sends the workpiece after trimming to the first collecting vehicle 8, so that subsequent concentrated rework processing is facilitated.

[0041] During the trimming process, the plastic pellets projected out will fall into the inclined slope collecting groove 16 after impacting the workpiece, the plastic pellets slide to the lowest position along the slope surface of the inclined slope collecting groove 16 and fall into the second collecting vehicle 18 through the discharge port 17, the plastic pellets in the second collecting vehicle 18 are cleaned regularly and recycled.

Claims

1. An automated freeze deburring apparatus for injection molded articles, comprising a worktable (1), characterized in that: The workbench (1) top is provided with a mesh belt conveyor (2), the workbench (1) front side is provided with a substandard product conveyor (3) near the output end of the mesh belt conveyor (2), the workbench (1) top is provided with a sorting mechanical hand (4) near the other side of the output end of the mesh belt conveyor (2), the workbench (1) top is provided with a loading rack (5) near the other side of the output end of the mesh belt conveyor (2), one end of the loading rack (5) is provided with an electric push rod (6) at the bottom, the electric push rod (6) is provided with a CCD detector (7) at the bottom, the CCD detector (7) is located directly above the output end of the mesh belt conveyor (2), the sorting mechanical hand (4) is arranged near the input end of the substandard product conveyor (3), the sorting mechanical hand (4) is electrically connected with the CCD detector (7), one side of the workbench (1) is provided with a first collection vehicle (8), and the first collection vehicle (8) is located directly below the output end of the substandard product conveyor (3).

2. An automated freeze deburring apparatus for injection molded articles according to claim 1, wherein: The workbench (1) top is provided with an isolation cover (9), and the isolation cover (9) is located directly above the mesh belt conveyor (2).

3. An automated freeze deburring apparatus for injection molded articles as defined in claim 2, wherein: The isolation cover (9) top is provided with a liquid nitrogen quick freezer (10) on one side, and a shot blasting machine (11) on the other side.

4. An automated freeze deburring apparatus for injection molded articles as defined in claim 3, wherein: The isolation cover (9) is provided with a liquid nitrogen injection port (12) on the inner top surface, and the input end of the liquid nitrogen injection port (12) is connected with the output end of the liquid nitrogen quick freezer (10).

5. An automated freeze deburring apparatus for injection molded articles as defined in claim 3, wherein: The isolation cover (9) is provided with a projectile launching port (13) on the inner top surface, and the input end of the projectile launching port (13) is connected with the output end of the shot blasting machine (11).

6. An automated freeze deburring apparatus for injection molded articles as defined in claim 2, wherein: Both ends of the isolation cover (9) are designed as open type, and the isolation cover (9) is provided with a protective door curtain (14) at both ends, and a sandwich layer is formed in the inner wall of the isolation cover (9), and the sandwich layer is filled with heat insulation cotton (15).

7. An automated freeze deburring apparatus for injection molded articles as defined in claim 1, wherein: The workbench (1) top is provided with an inclined slope collection groove (16), and the inclined slope collection groove (16) is located directly below the mesh belt conveyor (2).

8. An automated freeze deburring apparatus for injection molded articles according to claim 7, wherein: The workbench (1) bottom is provided with a discharge port (17), and the discharge port (17) is connected with the lowest end of the inclined slope collection groove (16), and the workbench (1) bottom is provided with a second collection vehicle (18), and the second collection vehicle (18) is located directly below the discharge port (17).

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