Screening and weighing equipment

Abstract

The present application relates to a screening and weighing device. The screening and weighing device comprises: a hopper assembly, a screening assembly and a material receiving assembly connected in sequence; the hopper assembly comprises a feed port, a plurality of magnet bars, a baffle, a discharge port and a bottom with a slope shape; the screening assembly comprises a screen plate, a material discharge chute and two vibrators; wherein the screen plate is located above the material discharge chute so that the separated powder screened by the screen plate falls into the material discharge chute; the material receiving assembly comprises: a material receiving cup and a weighing sensor, and the weighing sensor is arranged below the material receiving cup so that the weighing sensor can know the weight of the separated powder falling into the material receiving cup. The screening and weighing device sucks out the grinding material in the separated powder through the magnet bar, and then uses the screen plate to screen out the larger impurities and foreign matters in the separated powder, thereby improving the cleanliness of the separated powder, and then realizes automatic weighing through the weighing sensor to reduce the weight error caused by human error.

Description

Technical Field

[0001] The utility model relates to the technical field of powder screening and weighing, in particular to a screening and weighing device. Background Art

[0002] Multilayer Ceramic Capacitor (MLCC), also known as chip capacitor, is an essential basic component in the electronics industry and is known as the "rice of the electronics industry". During the separation process of MLCC product manufacturing, a zirconium oxide separation powder is added to prevent adhesion between products. Due to its high unit price, it is generally reused.

[0003] However, on the one hand, since the grinding materials or space impurities dropped from the products may be mixed with the products during use, excessive impurities may often cause product contamination and quality abnormalities when reused; on the other hand, the amount of separation powder added each time is added manually, which may easily lead to errors in the amount of separation powder. Utility Model Content

[0004] The screening and weighing equipment provided in the embodiments of the present application can solve at least some of the defects existing in the prior art.

[0005] The embodiment of the present application provides a screening and weighing device. The screening and weighing device includes: a hopper assembly, a screening assembly and a material receiving assembly connected in sequence; the hopper assembly includes: a feed port, a plurality of magnet bars, a baffle, a discharge port and a bottom with a slope shape; wherein the baffle is arranged around the bottom, the feed port is formed above the bottom, and the discharge port is formed in the downhill direction of the bottom, and the plurality of magnet bars are arranged horizontally and evenly between the bottom and the feed port, so that the grinding material in the separated powder can be sucked out by the plurality of magnet bars; the screening assembly includes: a screen plate, a discharge chute and two vibrators; wherein the screen plate is located above the discharge chute, So that the separated powder after being screened by the screen plate falls into the discharge chute; the two vibrators are respectively arranged under the screen plate and under the discharge chute, so that the two vibrators vibrate the screen plate and the discharge chute respectively; the material receiving assembly includes: a material receiving cup and a weighing sensor, the weighing sensor is arranged under the material receiving cup, so that the weighing sensor can know the weight of the separated powder falling into the material receiving cup; the weighing sensor is electrically connected to the two vibrators, so that when the two vibrators know from the weighing sensor that the separated powder in the material receiving cup has reached the target weight, they stop vibrating.

[0006] Optionally, the hopper assembly further includes: a first protective cover; the first protective cover is movable; the first protective cover is arranged at the feed port, so that when the first protective cover covers the feed port, the separation powder inside the hopper assembly cannot splash out from the feed port.

[0007] Optionally, the screening and weighing equipment further comprises: a gas vibrator; the gas vibrator is arranged below the hopper assembly, so that all the separated powder inside the hopper assembly is shaken off to the screening assembly through the vibration of the gas vibrator.

[0008] Optionally, the screening assembly further includes: a second protective cover; the second protective cover is arranged above the screen plate to form a closed space with the screen plate, so that the separated powder in the closed space cannot splash out.

[0009] Optionally, the unloading chute includes: a starting end, an end and a transmission plate between the starting end and the end; the transmission plate has a slope at the end; baffles are provided on both sides of the transmission plate, and a spout-shaped unloading port is formed on the slope; a baffle is provided at the starting end.

[0010] Optionally, the height of the transmission plate at the starting end is higher than that at the ending end, so that the transmission plate forms a slope shape.

[0011] Optionally, the material receiving assembly further comprises: a position sensor; the position sensor is arranged below the material receiving cup, so that when the position sensor detects the material receiving cup, the screening and weighing device is started.

[0012] Optionally, the material receiving assembly also includes: a protective cover; the protective cover has: a first opening facing the discharge chute, and a second opening facing the material receiving cup; when the protective cover is placed above the material receiving cup, a protective space is formed so that the separated powder in the protective space cannot splash out.

[0013] Optionally, the screening and weighing equipment also includes: a control unit; the control unit has: a display screen, a three-color light and a scanning gun; the display screen is electrically connected to the weighing sensor so that the weighing sensor can obtain the target weight corresponding to the separated powder to be weighed from the display screen; the three-color light has: a yellow light, a red light and a green light; wherein, when the yellow light is on, it is used to indicate that the screening and weighing equipment stops running; or, when the red light is on, it is used to indicate that the screening and weighing equipment is abnormal; or, when the green light is on, it is used to indicate that the screening and weighing equipment is operating normally; the scanning gun is used to collect relevant data corresponding to the separated powder to be weighed.

[0014] Optionally, the screen plate and the discharge chute are both made of hard materials.

[0015] At least one advantageous aspect of the screening and weighing equipment provided in the embodiment of the present application is that the grinding material in the separation powder is sucked out by the magnet bar arranged in the hopper assembly, and then the impurities and foreign materials with larger particles in the separation powder are screened out through the sieve plate arranged in the screening assembly, thereby screening out the separation powder with higher cleanliness. Furthermore, automatic weighing is achieved by means of a weighing sensor, thereby reducing weight errors caused by human errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 A schematic diagram of the screening and weighing equipment provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "bottom" and the like used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0020] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Multilayer Ceramic Capacitor (MLCC), also known as chip capacitor, is an essential basic component in the electronics industry and is known as the "rice of the electronics industry". During the separation process of MLCC product manufacturing, a zirconium oxide separation powder is added to prevent adhesion between products. Due to its high unit price, it is generally reused.

[0022] However, on the one hand, since the grinding materials or space impurities dropped from the products may be mixed with the products during use, excessive impurities may often cause product contamination and quality abnormalities when reused; on the other hand, the amount of separation powder added each time is added manually, which may easily lead to errors in the amount of separation powder.

[0023] In view of the technical defects existing in the prior art, the present application embodiment provides a screening weighing device, such as Figure 1 As shown, Figure 1 This is a schematic diagram of a screening and weighing device provided in an embodiment of the present application. The screening and weighing device 10 includes: a hopper assembly 11, a screening assembly 12 and a material receiving assembly 13 connected in sequence.

[0024] The hopper assembly 11 includes: a feed port 111 , a plurality of magnet bars 112 , a baffle 113 , a discharge port 114 and a bottom 115 having a slope shape.

[0025] The baffle 113 is disposed around the bottom 115 , a feed port 111 is formed above the bottom 115 , and a discharge port 114 is formed in a downhill direction of the bottom 115 .

[0026] By disposing the baffle 113 around the bottom 115 , it can be ensured that only the discharge port 114 can discharge the separated powder.

[0027] In some embodiments, Figure 1 As shown, a transmission plate with baffles on both sides is provided at the discharge port 114 to extend the discharge port 114 .

[0028] As an example but not limitation, the slope shape of the bottom 115 can be formed by cutting a cylindrical object, a rectangular parallelepiped object, or a cube object.

[0029] As an example but not limitation, the shape of the magnet bar 112 can be a cuboid or a cylinder, which is not limited here.

[0030] A plurality of magnet bars 112 are disposed laterally and evenly between the bottom 115 and the feed port 111 , so that the grinding material in the separated powder can be sucked out by the plurality of magnet bars 112 .

[0031] It should be noted that the plurality of magnet bars 112 can be arranged as a row of magnet bars at the same level, or can be arranged as multiple rows of magnet bars at different levels, which is not limited here, and only needs to be able to suck out the grinding material in the separation powder. Figure 1 As shown, two rows of magnet bars 112 at different levels are provided, one end of the magnet bar 112 is fixed to one side baffle, and the other end is fixed to the other side baffle.

[0032] For example, the separation powder containing the grinding material falls from the feed port 111 to the multiple magnet bars 112, and the multiple magnet bars 112 suck out the grinding material in the separation powder. Due to the effect of gravity, the separation powder falls on the bottom 115. Due to the slope shape of the bottom 115, the separation powder falling on the bottom 115 moves in the downhill direction of the bottom 115 until it reaches the discharge port 114.

[0033] The screening assembly 12 includes a screening plate 121 , a material discharge chute 122 and two vibrators 123 .

[0034] The sieve plate 121 is located above the unloading chute 122 , so that the separated powder screened by the sieve plate 121 falls into the unloading chute 122 .

[0035] The two vibrators 123 are respectively disposed below the sieve plate 121 and below the material discharge chute 122 , so that the two vibrators 123 vibrate the sieve plate 121 and the material discharge chute 122 , respectively.

[0036] It is understandable that by vibrating the sieve plate 121 through the vibrator 123, the separated powder falling into the sieve plate 121 can be vibrated and moved, thereby falling into the discharge chute 122. Further, by vibrating the discharge chute 122 through the vibrator 123, the separated powder falling into the discharge chute 122 can be vibrated and moved, thereby falling into the receiving assembly 13.

[0037] The material receiving assembly 13 includes: a material receiving cup 131 and a weighing sensor 132 . The weighing sensor 132 is arranged below the material receiving cup 131 so that the weighing sensor 132 can obtain the weight of the separated powder dropped into the material receiving cup 131 .

[0038] By way of example and not limitation, Figure 1 As shown, the receiving cup 131 can be a Φ50*50mm measuring tool with a handle, or other similar tools, which are not limited here.

[0039] The weighing sensor 132 is electrically connected to the two vibrators 123 , so that when the two vibrators 123 learn from the weighing sensor 132 that the separated powder in the receiving cup 131 has reached a target weight, the vibration is stopped.

[0040] As an example but not limitation, a preset target weight can be input into the weighing sensor 132. When the weighing sensor 132 detects that the separated powder in the receiving cup 131 has reached the target weight, a control instruction is generated, and the control instruction is transmitted to the two vibrators 123 respectively, so that the two vibrators 123 stop vibrating according to the control instruction, so that the separated powder falling into the screen plate 121 and the separated powder falling into the discharge chute 122 stop moving.

[0041] At least one advantageous aspect of the screening and weighing equipment provided in the embodiment of the present application is that the grinding material in the separation powder is sucked out by the magnet bar arranged in the hopper assembly, and then the impurities and foreign materials with larger particles in the separation powder are screened out through the sieve plate arranged in the screening assembly, thereby screening out the separation powder with higher cleanliness. Furthermore, automatic weighing is achieved by means of a weighing sensor, thereby reducing weight errors caused by human errors.

[0042] It should be noted that the embodiments of the present application are for the sake of simplicity and illustrative purposes only, showing the application scenario of the screening and weighing device in the screening and automatic weighing of separated powders. However, those skilled in the art will appreciate that, based on similar principles, the screening and weighing device provided in the embodiments of the present application can also be applied to other similar powder screening and weighing scenarios. The utility model ideas disclosed in the embodiments of the present application are not limited to Figure 1 The method is applied to the screening weighing equipment shown, and can also be used in other similar equipment.

[0043] In some embodiments, Figure 1 As shown, the hopper assembly 11 further includes a first protective cover 116 .

[0044] The first protective cover 116 is movable and is disposed at the feed port 111 , so that when the first protective cover 116 covers the feed port 111 , the separated powder inside the hopper assembly 11 cannot splash out from the feed port 111 .

[0045] In some embodiments, Figure 1 As shown, the screening weighing device 10 further includes a gas vibrator 14 .

[0046] The gas vibrator 14 is disposed below the hopper assembly 11 , so that all separated powders inside the hopper assembly 11 are shaken off to the screening assembly 12 by the vibration of the gas vibrator 14 .

[0047] In some embodiments, Figure 1As shown, the screening assembly 12 further includes a second protective cover 124 .

[0048] The second protective cover 124 is disposed above the sieve plate 121 to form a closed space with the sieve plate 121 so that the separated powder in the closed space cannot splash out.

[0049] In some embodiments, Figure 1 As shown, the unloading chute 122 includes: a starting end 1221 , an ending end 1222 , and a transmission plate 1223 between the starting end 1221 and the ending end 1222 .

[0050] The starting end 1221 is located below the sieve plate 121 , and a baffle is provided at the starting end 1221 , so that the separated powder screened by the sieve plate 121 falls onto the transmission plate 1223 and does not splash out from the starting end 1221 .

[0051] The transmission plate 1223 has an inclined surface at the end 1222, and baffles are provided on both sides of the transmission plate 1223, so that a spout-shaped discharge port is formed on the inclined surface.

[0052] As an example but not limitation, the transmission plate 1223 can be formed by splicing a rectangular transmission plate and a semicircular transmission plate, wherein the rectangular transmission plate is close to the screen plate 121, and the semicircular transmission plate is close to the receiving cup 131. The transmission plate 1223 can also be spliced ​​by transmission plates of other shapes, which is not limited here.

[0053] As an example but not limitation, the inclined surface may be a rectangle or an isosceles trapezoid, and the shortest side of the inclined surface (such as the shortest side in the rectangle or the upper base of the isosceles trapezoid) is close to the receiving cup 131.

[0054] It should be noted that the width of the side of the inclined surface close to the receiving cup 131 is smaller than the width of the receiving cup 131 , so that the separated powder output from the discharge port all falls into the receiving cup 131 .

[0055] In some embodiments, Figure 1 As shown, the height of the transmission plate 1223 at the starting end 1221 is higher than that at the ending end 1222 , so that the transmission plate 1223 forms a slope shape.

[0056] Since the transmission plate 1223 is formed in a slope shape, the sliding speed of the separated powder on the transmission plate 1223 can be accelerated.

[0057] In some embodiments, Figure 1 As shown, the material receiving component 13 also includes: a position sensor 133.

[0058] The position sensor 133 is disposed below the receiving cup 131 , so that when the position sensor 133 detects the receiving cup 131 , the screening and weighing device 10 is started.

[0059] In some embodiments, Figure 1 As shown, the material receiving assembly 13 also includes a protective cover 134 .

[0060] The protective cover 134 has a first opening 1341 facing the material discharge chute 122 and a second opening 1342 facing the material receiving cup 131 .

[0061] When the protective cover 134 is placed above the receiving cup 131 , a protective space is formed so that the separated powder in the protective space cannot splash out.

[0062] The embodiment of the present application does not limit the specific shape of the protective cover 134. For example, the protective cover 134 may be formed as follows: Figure 1 The cube shape shown.

[0063] In some embodiments, Figure 1 As shown, the screening and weighing device 10 further includes: a control unit 15 .

[0064] The control unit 15 comprises: a display screen 151 , a three-color light 152 and a scanning gun 153 .

[0065] The display screen 151 is electrically connected to the weighing sensor 132 , so that the weighing sensor 132 obtains the target weight corresponding to the separated powder to be weighed from the display screen 151 .

[0066] It should be noted that the display screen 151 has a data input function, and can input the target weight corresponding to the separated powder to be weighed.

[0067] In some embodiments, the display screen 151 is a touch screen, and data input can be achieved by touching the display screen 151 .

[0068] In some embodiments, the display screen 151 is provided with a login level interface, which enables visualization of login data.

[0069] The three-color light 152 includes a yellow light, a red light, and a green light. When the yellow light is on, it indicates that the screening weighing device 10 stops running; or, when the red light is on, it indicates that the screening weighing device 10 is abnormal; or, when the green light is on, it indicates that the screening weighing device 10 is running normally.

[0070] As an example but not limitation, the positions of the yellow light, the red light and the green light can be arranged horizontally or vertically, and the embodiment of the present application does not limit the sorting order of the three-color lights 152.

[0071] The scanning gun 153 is used to collect relevant data corresponding to the separated powder to be weighed. It should be noted that the scanning gun 153 is electrically connected to the display screen 151 so that the scanning gun 153 transmits the collected data to the display screen 151.

[0072] It should be noted that the relevant data corresponding to the separated powder that needs to be weighed includes but is not limited to the target weight corresponding to the separated powder.

[0073] As an example but not limitation, the scanner 153 can scan a QR code or a barcode. For example, a QR code is attached to the separation powder sheet corresponding to the separation powder, and the QR code records the required weight of the separation powder, so that the QR code of the separation powder sheet is scanned by the scanner 153 to obtain the target weight corresponding to the separation powder to be weighed, and then the target weight information is transmitted to the display screen 151.

[0074] In some embodiments, the sieve plate 121 and the material discharge chute 122 are both made of hard materials, so that the sieve plate 121 and the material discharge chute 122 are not easy to wear. As an example but not a limitation, the sieve plate 121 and the material discharge chute 122 are both made of hard anodized aluminum.

[0075] In some embodiments, Figure 1 As shown, the screening and weighing device 10 further includes: a bottom platform 16 , and the bottom platform 16 is used to carry the hopper assembly 11 , the screening assembly 12 , the material receiving assembly 13 , the gas vibrator 14 and the control unit 15 .

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A screening and weighing device, characterized in that: include: A hopper assembly, a screening assembly and a material receiving assembly connected in sequence; The hopper assembly comprises: a feed port, a plurality of magnet bars, a baffle, a discharge port, and a bottom with a slope shape; wherein the baffle is arranged around the bottom, the feed port is formed above the bottom, and the discharge port is formed in the downhill direction of the bottom, and the plurality of magnet bars are transversely and evenly arranged between the bottom and the feed port, so that the grinding material in the separation powder can be sucked out by the plurality of magnet bars; The screening assembly comprises: a screen plate, a material discharge chute and two vibrators; wherein the screen plate is located above the material discharge chute so that the separated powder screened by the screen plate falls into the material discharge chute; the two vibrators are respectively arranged below the screen plate and below the material discharge chute so that the two vibrators vibrate the screen plate and the material discharge chute respectively; The material receiving assembly comprises: a material receiving cup and a weighing sensor, wherein the weighing sensor is arranged below the material receiving cup so that the weighing sensor can obtain the weight of the separated powder falling into the material receiving cup; The weighing sensor is electrically connected to the two vibrators, so that when the two vibrators learn from the weighing sensor that the separated powder in the receiving cup reaches the target weight, the vibration is stopped.

2. The screening and weighing equipment according to claim 1, characterized in that: The hopper assembly also includes: a first protective cover; the first protective cover is movable; the first protective cover is arranged at the feed port, so that when the first protective cover covers the feed port, the separated powder inside the hopper assembly cannot splash out from the feed port.

3. The screening and weighing equipment according to claim 1, characterized in that: The screening and weighing equipment also includes: a gas vibrator; The gas vibrator is arranged below the hopper assembly so that all the separated powder inside the hopper assembly is shaken off to the screening assembly through the vibration of the gas vibrator.

4. The screening and weighing device according to claim 1, characterized in that: The screening assembly further comprises: a second protective cover; The second protective cover is arranged above the sieve plate and forms a closed space with the sieve plate, so that the separated powder in the closed space cannot splash out.

5. The screening and weighing equipment according to claim 1, characterized in that: The unloading chute comprises: a starting end, an ending end, and a transmission plate between the starting end and the ending end; The transmission plate has a slope at the end; Baffles are provided on both sides of the transmission plate, and a spout-shaped material discharge port is formed on the inclined surface; The starting end is provided with a baffle.

6. The screening and weighing device according to claim 5, characterized in that: The height of the transmission plate at the starting end is higher than that at the ending end, so that the transmission plate forms a slope shape.

7. The screening and weighing equipment according to claim 1, characterized in that: The material receiving assembly further includes: a position sensor; The position sensor is arranged below the receiving cup, so that when the position sensor detects the receiving cup, the screening and weighing device is started.

8. The screening and weighing device according to claim 1, characterized in that: The material receiving assembly further comprises: a protective cover; The protective cover has: a first opening facing the unloading chute, and a second opening facing the receiving cup; When the protective cover is placed above the receiving cup, a protective space is formed so that the separated powder in the protective space cannot splash out.

9. The screening and weighing device according to claim 1, characterized in that: The screening and weighing equipment further comprises: a control unit; the control unit comprises: a display screen, a three-color light and a scanning gun; The display screen is electrically connected to the weighing sensor, so that the weighing sensor obtains the target weight corresponding to the separation powder to be weighed from the display screen; The three-color light has: a yellow light, a red light, and a green light; wherein, when the yellow light is on, it is used to indicate that the screening weighing device has stopped running; or, when the red light is on, it is used to indicate that the screening weighing device is abnormal; or, when the green light is on, it is used to indicate that the screening weighing device is running normally; The scanning gun is used to collect relevant data corresponding to the separation powder that needs to be weighed.

10. The screening and weighing device according to claim 1, characterized in that: The screen plate and the unloading chute are both made of hard materials.

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