A handheld magnetic sorter for MLCC chamfering process

Abstract

The utility model discloses a handheld magnetic sorter for an MLCC chamfering process, comprising a hollow base with an opening at the top, an upper cover fixed to the top of the hollow base, a handheld handle fixed to the top of the upper cover, and a pull rod laterally arranged on the inner side of the handheld handle and movable longitudinally between the handheld handle and the upper cover; a strong magnet is arranged inside the hollow base, two guide holes symmetrically arranged on the upper cover are arranged, and a guide rod for connecting the strong magnet and the pull rod is correspondingly installed in each guide hole, and the strong magnet is used to absorb the MLCC product through the bottom surface of the hollow base; the utility model has the advantage that an operator can complete basic operations such as holding, pulling, releasing, lifting and lowering with one hand; the other hand only performs simple auxiliary actions of flipping a tray or a basin, and the operation is simple, and the overall appearance meets the requirements of ergonomic design, so that the operator can easily and quickly master and skillfully use it.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic sorting devices, and in particular relates to a handheld magnetic sorter used in an MLCC chamfering process. Background Art

[0002] At present, in the MLCC chamfering process, the separation tools used for separating MLCC products from alumina balls of specifications 1206, 1210 and 1810 are cumbersome to operate, with low production efficiency and a high proportion of porcelain loss during the operation. The specific operation method is as follows: the operator spreads the mixture of MLCC products of the above specifications and alumina balls on a stainless steel tray, and at the same time covers the surface of the optical axis magnetic rod with a dust-free cloth. The operator holds the magnetic rod and stirs it back and forth in the tray for several times to absorb the product onto the surface of the dust-free cloth, then moves it to the top of another tray, manually removes the dust-free cloth, allows the product to fall into the tray, and then covers the dust-free cloth on the optical axis magnetic rod and repeats the above action.

[0003] The main disadvantages of the above-mentioned current operation method are as follows: 1. The action is cumbersome, which is mainly reflected in the action of winding the dust-free cloth on the magnetic rod before sorting, and it is necessary to ensure that the winding is uniform and moderately tight. In the process of sucking the product, the magnetic rod and the tray must be kept parallel as much as possible, and both hands must be used (one hand holds the end of the magnetic rod, and the other hand pinches the bottom of the dust-free cloth to prevent it from loosening). After the sorting is completed, the dust-free cloth must be pulled off the magnetic rod by hand, so that the product falls into the special tray, and the dust-free cloth is rewound on the magnetic rod. The above actions are repeated as a cycle to complete the sorting of a batch of products; 2. The production efficiency is low. Taking a batch of 60,000 pcs of 1206 capacitor products as an example, the sorting time of the current operation method is about 2hr / batch; 3. The porcelain loss ratio is high. Referring to the production data of batch 18, the porcelain loss is about 700ppm. Summary of the invention

[0004] The purpose of the utility model is to provide a handheld magnetic sorter for the MLCC chamfering process, in which the operator can complete basic operations such as holding, pulling, releasing, lifting and lowering with one hand; the other hand only performs simple auxiliary actions such as turning over a tray or a basin. The operation is simple and the overall appearance meets the requirements of ergonomic design, so that the operator can easily and quickly master and skillfully use it.

[0005] The technical solution of the utility model is: a handheld magnetic separator for MLCC chamfering process, comprising a hollow base with a top opening, an upper cover fixed to the top of the hollow base, a handheld handle fixed to the top of the upper cover, and a pull rod transversely arranged on the inner side of the handheld handle and longitudinally movable between the handheld handle and the upper cover;

[0006] A strong magnet is arranged inside the hollow base, and two guide holes symmetrically arranged on the upper cover are arranged, and a guide rod for connecting the strong magnet and the pull rod is correspondingly installed in each guide hole. The strong magnet is used to absorb the MLCC product through the bottom surface of the hollow base.

[0007] As a preferred technical solution, two return springs symmetrically arranged between the pull rod and the hand-held handle are arranged.

[0008] As an optimal technical solution, the strong magnet is a neodymium iron boron magnet with a magnetic force of N52, and its dimensions are 50mm long, 40mm wide, and 50mm high. The bottom surface thickness of the hollow base is 3mm, and the distance between the strong magnet and the bottom surface of the hollow base ranges from 0 to 20mm.

[0009] As a preferred technical solution, the hollow base, the upper cover, the hand-held handle and the pull rod are all made of PP material.

[0010] As a preferred technical solution, the upper cover and the hollow base are fixedly connected by four locking bolts.

[0011] As a preferred technical solution, the guide rod and the pull rod are fixedly connected by locking bolt 2.

[0012] As a preferred technical solution, the hand-held handle and the upper cover are fixedly connected by two locking bolts.

[0013] The advantages of the utility model are:

[0014] 1. The handheld magnetic sorter of the utility model allows the operator to complete basic operations with one hand, such as holding, pulling, releasing, lifting and lowering; the other hand only performs simple auxiliary actions such as flipping the tray or basin. While the operation is simple, the overall appearance meets the requirements of ergonomic design, and the operator can easily and quickly master and use it proficiently.

[0015] 2. The handheld magnetic separator of the utility model has high working efficiency. After actual testing, taking a batch of 60,000 pcs of 1206 capacitor products as an example, the sorting time is about 40 minutes / batch, which can save more than 60% compared with the previous magnetic bar suction method;

[0016] 3. During the absorption process, the bottom surface of the hollow base of the utility model will not directly contact the mixture of MLCC products and alumina balls, so it can effectively reduce the damage of capacitor products due to impact or friction, and ensure the integrity of capacitor products and alumina balls to the greatest extent, so the porcelain loss ratio is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural sectional view of the utility model;

[0021] Among them: 1 hollow base, 2 upper cover, 3 hand handle, 4 pull rod, 5 strong magnet, 6 guide hole, 7 guide rod, 8 return spring, 9 locking bolt one, 10 locking bolt two. DETAILED DESCRIPTION

[0022] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0023] Example: Refer to Figure 1 and Figure 2 As shown, a handheld magnetic separator for MLCC chamfering process includes a hollow base 1 with an opening at the top, an upper cover 2 fixed to the top of the hollow base 1, a handheld handle 3 fixed to the top of the upper cover 2, and a pull rod 4 transversely arranged on the inner side of the handheld handle 3 and movable longitudinally between the handheld handle 3 and the upper cover 2; a strong magnet 5 is arranged inside the hollow base 1, and two guide holes 6 symmetrically arranged on the upper cover 2 are arranged, and a guide rod 7 for connecting the strong magnet 5 and the pull rod 4 is correspondingly installed in each guide hole 6, and the strong magnet 5 is used to absorb MLCC products through the bottom surface of the hollow base 1.

[0024] In this embodiment, two left-right symmetrically arranged return springs 8 are arranged between the pull rod 4 and the hand-held handle 3 , and the strong magnet 5 is restored to its original position by the return spring 8 , that is, the strong magnet 5 is reset downward and contacts the bottom surface of the hollow base 1 .

[0025] In this embodiment, the strong magnet 5 is a neodymium iron boron magnet with a magnetic force of N52, and its dimensions are 50 mm in length, 40 mm in width, and 50 mm in height. The bottom surface thickness of the hollow base 1 is 3 mm, and the distance between the strong magnet 5 and the bottom surface of the hollow base 1 ranges from 0 to 20 mm to ensure that the capacitor product can be smoothly absorbed and released by the strong magnet.

[0026] The hollow base 1, upper cover 2, hand-held handle 3 and pull rod 4 in this embodiment are all made of PP material. During the suction process, the bottom surface of the hollow base 1 will not directly contact the mixture of MLCC product and alumina balls, so it can effectively reduce the damage of the capacitor product due to impact or friction, and maximize the integrity of the capacitor product and the alumina balls.

[0027] In this embodiment, the upper cover 2 and the hollow base 1 are fixedly connected by four locking bolts 1 9, the guide rod 7 and the pull rod 4 are fixedly connected by locking bolts 2 10, and the hand-held handle 3 and the upper cover 2 are fixedly connected by two locking bolts 3 (not drawn in the figure). At the same time, the locking bolts 1 9, the locking bolts 2 10, and the locking bolts 3 are all made of SUS304 material.

[0028] The working process of the handheld magnetic separator in this embodiment is as follows:

[0029] S1: Before using a handheld magnetic separator to separate alumina balls and capacitor products, pour the mixture of alumina balls and capacitor products into a wide and shallow stainless steel tray or stainless steel basin, and spread it as flat as possible;

[0030] S2: The operator grasps the hand grip 3 with one hand, with the back of the hand above the hand grip 3, and lightly grips the pull rod 4 with fingers (without using force);

[0031] S3: Hold the magnetic separator above the tray or basin and slowly lower it so that the bottom of the separator is 2 to 3 mm away from the upper surface of the mixture of alumina balls and capacitor products;

[0032] S4: Since the capacitor product has metal electrodes inside, and the alumina ball is a non-metallic product, the capacitor product in the mixture is attracted to the lower surface of the hollow base 1 by the magnetic force of the strong magnet 5 in the separator;

[0033] S5: lift the separator, move it horizontally to the top of another tray or basin, slowly descend to a height of 20 to 30 mm from the bottom of the tray or basin, pull the pull rod 4 upward with your fingers, the reset spring 8 is compressed, and the pull rod 4 drives the strong magnet 5 under the guide rod 7, so that the distance between the strong magnet 5 and the bottom of the hollow base 1 is lengthened, and the magnetic force of the strong magnet 5 on the capacitor product is weakened until the capacitor product is released and falls to the bottom of the tray or basin; the above actions are completed to separate the alumina balls from the capacitor product, which is one cycle;

[0034] S6: Release the pull rod 4, and reset the strong magnet 5 under the action of the reset spring 8, and repeat the S2-S5 cycle until all the products in a batch are sorted. During this period, you can use your other hand to properly flip the tray or basin so that the mixture is always spread flat on the bottom surface to facilitate the sorter to absorb and improve the overall efficiency.

[0035] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A handheld magnetic separator for MLCC chamfering process, characterized in that: It comprises a hollow base with an opening at the top, an upper cover fixed to the top of the hollow base, a hand-held handle fixed to the top of the upper cover, and a pull rod transversely arranged inside the hand-held handle and movable longitudinally between the hand-held handle and the upper cover; A strong magnet is arranged inside the hollow base, and two guide holes symmetrically arranged on the upper cover are arranged, and a guide rod for connecting the strong magnet and the pull rod is correspondingly installed in each guide hole. The strong magnet is used to absorb the MLCC product through the bottom surface of the hollow base.

2. The handheld magnetic separator for MLCC chamfering process according to claim 1, characterized in that: Two return springs symmetrically arranged left and right are arranged between the pull rod and the hand-held handle.

3. The handheld magnetic separator for MLCC chamfering process according to claim 1, characterized in that: The strong magnet is a NdFeB magnet with a magnetic force of N52, and its dimensions are 50mm in length, 40mm in width, and 50mm in height. The bottom surface thickness of the hollow base is 3mm, and the distance between the strong magnet and the bottom surface of the hollow base ranges from 0 to 20mm.

4. The handheld magnetic separator for MLCC chamfering process according to claim 1, characterized in that: The hollow base, the upper cover, the hand-held handle and the pull rod are all made of PP material.

5. The handheld magnetic separator for MLCC chamfering process according to claim 1, characterized in that: The upper cover and the hollow base are fixedly connected by four locking bolts.

6. The handheld magnetic separator for MLCC chamfering process according to claim 1, characterized in that: The guide rod is fixedly connected to the pull rod by a second locking bolt.

7. The handheld magnetic separator for MLCC chamfering process according to claim 1, characterized in that: The hand-held handle is fixedly connected to the upper cover by two locking bolts.

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