Automatic discharging device for MLCC production

Abstract

The utility model discloses an automatic discharging device for MLCC production, and belongs to the technical field of MLCC production. The automatic discharging device for MLCC production comprises a discharging table provided with a discharging port, a product box is detachably connected to the lower portion of the discharging table, a top opening of the product box right faces the discharging port, a water containing cavity is formed in the product box, and a clamping jaw mechanism used for moving a sintering sagger is further movably arranged on the discharging table. The clamping jaw mechanism grabs the sintering saggar, products in the sintering saggar are poured into the product box, water is contained in the product box, impact force generated when the products fall can be remarkably reduced through buffering of the water, and collision damage, collapse or microcracks, caused by hard contact, of the products are reduced, so that the percent of pass of the products is increased.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, and particularly relates to an automatic feeding device for MLCC production. Background Technology

[0002] MLCC, also known as multilayer ceramic chip capacitor, consists of multiple alternating layers of ceramic dielectric and metal electrode layers. These layers are sintered at high temperatures to form an integrated multilayer structure, connected externally via metal terminals to achieve capacitance. After sintering, the MLCCs are cooled to room temperature in the sintering furnace before being transferred to a product box and sent to the next process step.

[0003] In fact, the ceramic dielectric material of MLCC itself has high brittleness and low ductility. Although it has excellent electrical properties after sintering, it has low mechanical strength and poor resistance to bending and impact. This makes sintered MLCC products very easy to be damaged when directly poured into the product box, resulting in poor appearance.

[0004] Therefore, it is necessary to improve the feeding device in the existing technology. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide an automatic feeding device for MLCC production, which reduces the probability of damage to MLCC products during the feeding process.

[0006] To achieve the above objectives, the specific technical solution of the automatic feeding device for MLCC production of this utility model is as follows:

[0007] An automatic feeding device for MLCC production includes a feeding platform with a feeding port, a product box detachably connected to the bottom of the feeding platform, the top opening of the product box facing the feeding port, a water-holding cavity inside the product box, and a gripper mechanism for moving the sintering box movably mounted on the feeding platform.

[0008] Preferably, the product box has a mesh pocket inside.

[0009] Preferably, the material discharge port is provided with a flange strip around its perimeter, and the flange strip is elastic.

[0010] Preferably, the gripper mechanism includes a track and two grippers that are slidably disposed on the track, and each of the two grippers has a limiting groove on its opposite side that matches the edge of the sintering box.

[0011] Preferably, the unloading platform is provided with a two-axis moving stage, the moving end of the two-axis moving stage is fixedly connected to a moving seat, a flipping seat is flipped on the moving seat, and the flipping seat is fixedly connected to the track.

[0012] Preferably, the bottom surface of the unloading platform is fixedly connected to a slide rail, and the product box is fixedly connected to a slider, with the slide rail and the slider slidingly engaging each other.

[0013] Preferably, the unloading platform is also provided with an auxiliary guide rail, which is connected to the two-axis moving platform.

[0014] Preferably, the unloading platform has a gripping area and a placement area, both of which are located within the moving range of the gripper mechanism, and both the gripping area and the placement area are equipped with conveyor belts.

[0015] Preferably, a mounting frame is provided directly below the conveyor belt, and the conveyor belt is connected to the mounting frame via a weight sensor.

[0016] The automatic feeding device for MLCC production of this utility model has the following advantages: the gripper mechanism grabs the sintering box and pours the product in the sintering box into the product box. The product box is filled with water. The water buffer can significantly reduce the impact force when the product falls, reduce the damage, chipping or micro-cracks caused by hard contact, thereby improving the product qualification rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the automatic feeding device of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the product box of this utility model;

[0019] Figure 3 This is a schematic diagram of the gripper mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the product box of this utility model;

[0021] Figure 5 This is a schematic diagram of the conveyor belt structure of this utility model;

[0022] The markings in the diagram are as follows: 1. Unloading platform; 2. Product box; 3. Gripper mechanism; 4. Conveyor belt; 5. Sintering box; 6. Mesh bag; 101. Discharge port; 102. Flange strip; 103. Slide rail; 201. Slider; 301. Two-axis moving table; 302. Auxiliary guide rail; 303. Moving seat; 304. Tilting seat; 305. Track; 306. Gripper; 307. Limiting groove; 401. Weight sensor; 402. Mounting bracket. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0024] The terms "top surface," "bottom surface," and "full surface" are used with reference to the normal operating state of the automatic feeding device and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figure 1 and 2 As shown, an automatic feeding device for MLCC production includes a feeding platform 1 with a feeding port 101. A product box 2 is detachably connected to the bottom of the feeding platform 1. The top opening of the product box 2 is set directly opposite the feeding port 101. The product box 2 has a water-holding cavity inside. A gripper mechanism 3 for moving the sintering box 5 is also movably arranged on the feeding platform 1.

[0026] The above-mentioned feeding device is suitable for feeding MLCC products after sintering. The sintering box 5 is used to hold the products. After the sintering process is completed, the products inside the sintering box 5 are sent to the feeding table 1. The gripper mechanism 3 grabs the sintering box 5 and moves it to the top of the discharge port 101. Then, the sintering box 5 is flipped from the horizontal turntable to a vertical position, so that the products inside the sintering box 5 can be completely poured out, reducing product residue. Under the action of gravity, the products inside the sintering box 5 fall into the product box 2 through the discharge port 101. The product box 2 contains clean water, and the amount of clean water is more than two-thirds of the capacity of the product box 2. When the products fall into the clean water, the water gradually offsets the kinetic energy of the products through flow and compression, thereby reducing the mutual impact force between the products and the product box 2 and between the products, reducing the damage, chipping or micro-cracks caused by hard contact, thereby improving the product qualification rate.

[0027] Compared with the existing manual feeding method, this feeding method is more efficient. Secondly, water, as a lubricating medium, can reduce the coefficient of friction of the product surface during movement, avoiding mutual scratching between products in a dry environment. Furthermore, the surface of the sintered product may generate static electricity due to friction, causing particles to stick together or adsorb dust. The water environment can effectively discharge static electricity, reducing the adsorption and adhesion of dust or particles to the product. In addition, water can wash away trace amounts of dust or process impurities remaining during the sintering process, improving the cleanliness of the product surface.

[0028] Furthermore, in the aforementioned feeding device, when the sintered product is cooled to the second temperature zone of 150-240 degrees Celsius, the physical structure and electrical characteristics of the product become basically stable and will not be affected when placed in cold water. The product can then be poured into the water inside the product box 2. This eliminates the need to wait for the product to cool to room temperature, shortens the cooling time, and prevents the high-temperature product from sticking to the product box, thereby improving production efficiency.

[0029] Further improvements include, for example Figure 4 As shown, a mesh bag 6 is installed inside the product box 2. The mesh bag 6 inside the product box is made of gauze, and the edge of the opening of the mesh bag 6 is fixedly connected to the edge of the opening of the product box 2. Specifically, the two can be fixed together using clips. The gauze material is soft, and the wet gauze can further absorb the impact force generated when the product falls through the deformation of the fiber structure, thus providing further cushioning for the product, reducing the probability of damage during product unloading, and improving the product qualification rate.

[0030] Further improvements include, for example Figure 2 As shown, flange strips 102 are circumferentially provided around the perimeter of the discharge port 101. The flange strips 102 are elastic. The flange strips 102 have a flat structure and form a funnel shape, which can effectively gather the falling products to the discharge port 101. The surface of the flange strips 102 is provided with a rubber layer to give it a certain degree of elasticity. In this way, during the product falling process, the products that come into contact with the flange strips 102 can play a certain buffering role, thereby reducing the impact rate of the products and lowering the product qualification rate.

[0031] Further improvements include, for example Figure 3 As shown, the gripper mechanism 3 includes a track 305 and two grippers 306 that are slidably disposed on the track 305. Each of the two grippers 306 has a limiting groove 307 on its opposite sides that matches the edge of the sintering box 5. Specifically, two cylinders can be mounted on the track 305, each cylinder being connected to one of the two grippers 306 to drive the grippers 306 to move closer or further apart. When the two grippers 306 move closer together, the sintering box 5 can be gripped; when the two grippers 306 move further apart, the sintering box 5 can be released, thus enabling the sintering box 5 to be picked up and placed. The limiting groove 307 allows the edge of the sintering box 5 to be inserted, thereby achieving the engagement between the sintering box 5 and the grippers 306 and improving the stability of gripping the sintering box 5.

[0032] Further improvements include, for example Figure 3As shown, a two-axis moving stage 301 is provided on the unloading platform 1. A moving seat 303 is fixedly connected to the moving end of the two-axis moving stage 301. A flipping seat 304 is flipped on the moving seat 303. The flipping seat 304 is fixedly connected to the track 305. Specifically, the two-axis moving stage 301 includes two electrically controlled translation stages. The first electrically controlled translation stage is horizontally fixed on the unloading table 1, and the second electrically controlled translation stage is vertically fixed on the moving end of the first electrically controlled translation stage. The moving seat 303 is fixed on the moving end of the second electrically controlled translation stage, thus driving the moving seat 303 to perform translation and lifting operations. The flipping seat 304 is connected to the moving seat 303 through a hinge shaft, allowing the flipping seat 304 to flip up and down relative to the moving seat 303. A servo motor that provides power to the flipping seat 304 is fixedly connected to the moving seat 303, thereby driving the gripper 306 to flip. Through the above structure, the gripper 306 can pick up and put down the sintering box 5, as well as transport and flip the sintering box 5, thereby realizing the unloading operation of the product and greatly improving work efficiency.

[0033] Further improvements include, for example Figure 3 As shown, a slide rail 103 is fixedly connected to the bottom surface of the unloading platform 1, and a slider 201 is fixedly connected to the product box 2. The slide rail 103 and the slider 201 slide and cooperate with each other. Specifically, there are two slide rails 103, which are parallel to each other and respectively located on both sides of the unloading port 101. The slider 201 cooperates with the slide rail 103, allowing the operator to push and pull the product box 2. The slider 201 and the slide rail 103 can be connected or separated, so that the product box 2 can be removed from the slide rail 103. When the product box 2 is full, it is convenient to replace the product box 2, thereby improving the unloading efficiency of the unloading device.

[0034] Further improvements include, for example Figure 3 As shown, an auxiliary guide rail 302 is also provided on the unloading table 1, and the auxiliary guide rail 302 is connected to the two-axis moving table 301. The auxiliary guide rail 302 is parallel to the first horizontally set electrically controlled translation table, and the second electrically controlled translation table is provided with a guide block that slides with the guide rail 302. In this way, the number of support points for the second vertically set electrically controlled translation table can be increased, thereby improving the stability of the second electrically controlled translation table and ultimately improving the stability of the movement of the gripper mechanism 3.

[0035] Further improvements include, for example Figure 1As shown, the unloading platform 1 has a gripping area and a placement area, both of which are within the movement range of the gripper mechanism 3. Both the gripping and placement areas are equipped with conveyor belts 4. In the above-mentioned unloading device, one conveyor belt 4 delivers the sintering box 5 containing the product to the unloading platform 1. After the gripper mechanism 3 grips the sintering box 5, the product inside is poured into the product box 2. Then, the empty sintering box 5 is placed onto the other conveyor belt 4. This achieves automatic conveying and unloading of the sintering box 5, greatly improving the working efficiency of the unloading device.

[0036] Further improvements include, for example Figure 5 As shown, a mounting frame 402 is installed directly below the conveyor belt 4, and the conveyor belt 4 is connected to the mounting frame 402 via a weight sensor 401. The weight sensor 401 is used to check the weight of the sintering cassettes 5 on the conveyor belt 4 and the products inside them. By comparing the expected weight and the actual weight of a single batch of products and using a preset allowable error, it can be determined whether the number of sintering cassettes 5 on the conveyor belt 4 is consistent with the number of sintering cassettes 5 when the batch of products is loaded. The device will only start when the number of sintering cassettes 5 loaded and unloaded is the same; otherwise, an alarm will be triggered to indicate that there may be a situation of missing, multiple, or incorrect loading, reminding the staff to check and confirm the loading situation. This can effectively avoid the situation of mixing different batches of products due to loading errors.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automatic feeding device for MLCC production, characterized in that: The product box (2) is detachably connected to the bottom of the product box (1) with a discharge port (101). The top opening of the product box (2) is set directly opposite the discharge port (101). The product box (2) has a water-holding cavity inside. The product box (1) is also movably equipped with a gripper mechanism (3) for moving the sintering box (5).

2. The automatic feeding device for MLCC production according to claim 1, characterized in that, The product box (2) has a mesh bag (6) inside.

3. The automatic feeding device for MLCC production according to claim 1, characterized in that, The material discharge port (101) is provided with a flange strip (102) around its four edges, and the flange strip (102) is elastic.

4. The automatic feeding device for MLCC production according to claim 1, characterized in that, The gripper mechanism (3) includes a track (305) and two grippers (306) that are slidably disposed on the track (305). The two grippers (306) are provided with limiting grooves (307) on opposite sides that match the edge of the sintering box (5).

5. The automatic feeding device for MLCC production according to claim 4, characterized in that, The unloading platform (1) is provided with a two-axis moving platform (301). The moving end of the two-axis moving platform (301) is fixedly connected to a moving seat (303). A flipping seat (304) is flipped on the moving seat (303). The flipping seat (304) is fixedly connected to the track (305).

6. The automatic feeding device for MLCC production according to claim 1, characterized in that, The bottom surface of the unloading platform (1) is fixedly connected to a slide rail (103), and the product box (2) is fixedly connected to a slider (201). The slide rail (103) and the slider (201) slide and cooperate with each other.

7. The automatic feeding device for MLCC production according to claim 5, characterized in that, An auxiliary guide rail (302) is also provided on the unloading platform (1), and the auxiliary guide rail (302) is connected to the two-axis moving platform (301).

8. The automatic feeding device for MLCC production according to claim 1, characterized in that, The unloading platform (1) has a gripping area and a placement area, both of which are located within the moving range of the gripper mechanism (3), and both the gripping area and the placement area are equipped with conveyor belts (4).

9. The automatic feeding device for MLCC production according to claim 8, characterized in that, An mounting frame (402) is provided directly below the conveyor belt (4), and the conveyor belt (4) is connected to the mounting frame (402) through a weight sensor (401).

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