piezoelectric vibrating hopper

Abstract

This utility model relates to the technical field of vibrating hopper devices, and more particularly to a piezoelectric vibrating hopper, including a support frame and a storage hopper fixedly installed on its top. A vibrating discharge hopper and a vibrating power component are sequentially arranged at the bottom of the storage hopper. The vibrating discharge hopper consists of a horizontal section hopper one and an inclined section hopper two. By rotating hopper two to the end of hopper one, this utility model can adjust the inclination angle of hopper two and control the material discharge speed. Simultaneously, an electromagnetic plate and a negative pressure hole are arranged at the top of the inclined section hopper two, forming a combination of electromagnetic fixation of magnetic materials and negative pressure adsorption of non-magnetic materials. This allows for precise fixation of materials with different characteristics. When discharging stops, it avoids the situation where vibrating inertia-induced electronic materials easily slip down the inclined surface due to gravity, thus improving the accuracy of material discharge, ensuring the smoothness of material discharge, and adapting to the characteristics of various materials for fixation, thereby enhancing the versatility of the device.

Description

Technical Field

[0001] This utility model relates to the technical field of vibrating hopper devices, and in particular to a piezoelectric vibrating hopper. Background Technology

[0002] In the field of automated production of electronic components, piezoelectric vibrating hoppers are core equipment for material conveying. Their working principle is to use the high-frequency vibration of piezoelectric vibrators to move the electronic components in the hopper along the surface of the inclined discharge plate and achieve directional discharge.

[0003] Because the existing vibrating hoppers have a fixed tilt angle, the discharge speed adjustment is limited. The tilt angle of the discharge plate of traditional piezoelectric vibrating hoppers is mostly a preset fixed value, which is not convenient to adjust flexibly according to material characteristics (such as size, weight, surface friction) or production rhythm. At the same time, since the bottom of the vibrating hopper is usually tilted, when the vibration stops, some material is usually still on the tilted surface. It is not convenient to process the material that is already on the surface of the tilted plate. This causes the material, which has lost its vibration inertia, to easily slide down the tilted surface of the plate under its own gravity, thereby reducing the discharge accuracy of the material and further increasing the error of the material discharge. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a piezoelectric vibrating hopper, which solves the technical problems of limited discharge speed adjustment due to the fixed tilt angle of existing vibrating hoppers, and the tendency of materials that have lost their vibration inertia to slide down the inclined surface of the inclined plate under their own gravity, thereby reducing the discharge accuracy and further increasing the error of material discharge. The present invention achieves the goal of controlling the material discharge speed while improving the material discharge accuracy, ensuring the smoothness of material discharge, and adapting to the characteristics of various materials, thus improving the versatility of the device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a piezoelectric vibrating hopper, including a support frame and a storage hopper fixedly installed on its top, a vibrating discharge hopper and a vibrating power assembly are arranged sequentially at the bottom of the storage hopper, the vibrating discharge hopper is composed of a horizontal section hopper one and an inclined section hopper two, the hopper two is rotatably connected to the bottom of the hopper one, and an electromagnetic plate for adsorbing and fixing magnetic materials is fixedly installed on the inner top of the hopper two;

[0006] The top of the electromagnetic plate is uniformly provided with negative pressure holes for adsorbing and fixing non-magnetic materials. A negative pressure cavity is formed between the electromagnetic plate and the top of the second hopper. A connecting air pipe communicating with the inside of the negative pressure cavity is fixedly installed at the bottom of the second hopper.

[0007] Preferably, one end of the hopper is located at the bottom of the discharge port of the storage hopper.

[0008] Preferably, a drive shaft is rotatably connected between the bottom of the first hopper and the end of the second hopper, and the end of the drive shaft passes through the bottom side wall of the second hopper and is fixedly connected to a drive knob.

[0009] Preferably, a relay for controlling the start and stop of the electromagnetic plate is fixedly installed on the outer wall of the second hopper, and the electromagnetic plate adopts a stepped power-off configuration.

[0010] Preferably, the top of the second hopper is provided with a visual sensor for counting the discharged material, and one end of the visual sensor is fixedly connected to the outer wall of the storage hopper.

[0011] Preferably, the second hopper is provided with a locking component to fix the position of the second hopper after the angle is adjusted. The locking component includes a drive gear fixedly sleeved on the outer peripheral wall of both sides of the drive shaft, a locking tooth plate meshing on one side of the drive gear, and a set of connecting plates that are slidably connected to the outer wall of the two sets of locking tooth plates.

[0012] Preferably, a fixing plate is fixedly installed at the bottom of the hopper, and a locking screw is threaded inside the fixing plate, with one end of the locking screw rotatably connected to the outer wall of the connecting plate.

[0013] By employing the above technical solution, this utility model provides a piezoelectric vibrating feeder, which has at least the following beneficial effects:

[0014] 1. This utility model allows for the adjustment of the tilt angle of hopper two by rotating it to the end of hopper one, thereby controlling the material discharge speed. Simultaneously, an electromagnetic plate and negative pressure holes are installed at the top of the tilted section of hopper two, forming a combination of electromagnetic fixation of magnetic materials and negative pressure adsorption of non-magnetic materials. This enables precise fixation of materials with different characteristics. When discharging stops, it prevents vibrating electronic materials from slipping down the inclined plane due to gravity, thus improving the accuracy of material discharge, ensuring smooth material discharge, and adapting to the characteristics of various materials for fixation, thereby enhancing the versatility of the device.

[0015] 2. This utility model, by setting a locking component at the second hopper and the first hopper, can fix the angle of the second hopper after adjustment, ensuring that the second hopper is in a stable and fixed state for material discharge. In addition, the electromagnetic plate adopts a stepped power-off design, first reducing the magnetic force by 50% and finally completely losing the magnetic force. This can prevent the material from suddenly slipping due to gravity due to sudden power failure. Instead, the pre-vibration allows the material to be discharged smoothly, reducing impact and thus protecting the material at the inclined end. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the installation positions of the vibrating discharge hopper and the storage hopper of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between hopper one and hopper two of this utility model;

[0021] Figure 4 This is a schematic diagram of the second structure of the hopper of this utility model;

[0022] Figure 5 This is a front sectional view of the hopper of this utility model;

[0023] Figure 6 This is a schematic diagram of the connection structure between the locking component and the hopper of this utility model.

[0024] In the diagram: 1. Support frame; 2. Storage hopper; 3. Vibrating discharge hopper; 31. Hopper 1; 32. Hopper 2; 321. Drive shaft; 322. Drive knob; 4. Vibration power assembly; 5. Electromagnetic plate; 51. Relay; 6. Negative pressure hole; 61. Negative pressure chamber; 62. Connecting air pipe; 7. Locking assembly; 71. Drive gear; 72. Locking tooth plate; 73. Connecting plate; 74. Fixing plate; 75. Locking screw; 8. Vision sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Addressing the issues of current vibratory hoppers where a fixed tilt angle limits discharge speed adjustment and materials, lacking vibration inertia, easily slide down the inclined surface of the plate under their own weight, thus reducing discharge accuracy and increasing errors, this embodiment provides a piezoelectric vibratory hopper. This hopper can control the discharge speed while improving discharge accuracy and ensuring smooth discharge. Furthermore, it is adaptable to various material characteristics, enhancing the device's versatility. Please refer to... Figure 1 - Figure 5 The piezoelectric vibrating feeder includes a support frame 1 and a storage hopper 2 fixedly installed on its top. A vibrating discharge hopper 3 and a vibrating power component 4 are sequentially arranged at the bottom of the storage hopper 2. The vibrating power component 4 mainly drives the vibrating discharge hopper 3 to vibrate, thus vibrating and discharging the material. These components form a piezoelectric vibrating feeder, which is existing equipment and will not be described in detail here. The vibrating discharge hopper 3 consists of a horizontal section hopper 31 and an inclined section hopper 32. The hopper 32 is rotatably connected to the bottom of the hopper 31. An electromagnetic plate 5 for adsorbing and fixing magnetic materials is fixedly installed on the inner top of the hopper 32. During use, the material is discharged through the bottom of the storage hopper 2 and falls into the interior of the horizontal section hopper 31. Under the vibration of the vibrating power component 4, the discharged material vibrates inside the hopper 31 and, under its own gravity, is discharged through the bottom of the hopper 32, thus realizing the material discharge operation.

[0028] Because of its slope, the inclined discharge plate causes electronic materials to slip down the slope due to gravity after vibration stops, resulting in material falling and reducing discharge accuracy. To improve discharge accuracy, an electromagnetic plate 5 and a negative pressure hole 6 are installed on the inclined surface of hopper 2 32. This allows for the selection of appropriate fixing methods based on the characteristics of the material being discharged. After vibration stops, the material on the inclined surface of hopper 2 32 is fixed, preventing slippage. Figure 4 - Figure 5As shown, the top of the electromagnetic plate 5 is uniformly provided with negative pressure holes 6 for adsorbing and fixing non-magnetic materials. A negative pressure cavity 61 is formed between the electromagnetic plate 5 and the top of the hopper 2 32. A connecting air pipe 62 communicating with the inside of the negative pressure cavity 61 is fixedly installed at the bottom of the hopper 2 32. The connecting air pipe 62 is used to connect to an external air pump. The air pump is electrically connected to the vibration power component 4. When the vibration power component 4 is working, the air pump is not working, allowing the material to fall normally. When the vibration power component 4 stops working, the air pump works to extract the air from the cavity formed between the electromagnetic plate 5 and the hopper 2 32, thereby adsorbing and fixing the non-magnetic material on the inclined surface of the hopper 2 32. This prevents the material already on the inclined surface of the hopper 2 32 from sliding down under its own gravity, improving the material discharge accuracy. This method is effective in fixing non-magnetic materials.

[0029] During the discharge process, the discharge speed of the material is inextricably linked to the tilt angle of the vibrating discharge hopper 3. Hopper 2 32 is rotatably connected to the end of hopper 1 31 via a drive shaft 321, facilitating the adjustment of the tilt angle of hopper 2 32. This allows for the reasonable adjustment of the tilt angle of hopper 2 32 according to the characteristics of the material, thus meeting the discharge requirements. Figure 5 As shown, one end of hopper 31 is located at the bottom of the discharge port of storage hopper 2. A drive shaft 321 is rotatably connected between the bottom of hopper 31 and the end of hopper 32. The end of the drive shaft 321 passes through the bottom side wall of hopper 32 and is fixedly connected to a drive knob 322. The drive knob 322 facilitates the rotation of the drive shaft 321 between the bottom of hopper 31 and the end of hopper 32 to adjust the tilt angle of hopper 32.

[0030] Example 2

[0031] Two fixing methods are employed. The main purpose is that, since some magnetic materials may have gaps or holes on their surface, negative pressure adsorption is used when the material surface is uneven, resulting in a smaller contact area and reduced fixing effect. The second method uses an electromagnetic plate 5, which acts directly on the material itself through magnetic force, regardless of the material's surface condition (e.g., whether it is flat or porous). Even if the material surface is rough or has protrusions, a stable adsorption force can still be formed, and the fixing effect is not affected by the contact area. Furthermore, the electromagnetic plate 5 cannot fix non-magnetic materials. Based on the first embodiment, such as... Figure 1 - Figure 5As shown, a relay 51 for controlling the start and stop of the electromagnetic plate 5 is fixedly installed on the outer wall of the second hopper 32. The electromagnetic plate 5 adopts a stepped power-off setting. The relay 51 is electrically connected to the vibration power component 4. When the vibration power component 4 is working, the relay 51 controls the electromagnetic plate 5 to lose its magnetism, allowing the material to fall normally. When the vibration power component 4 stops working, the relay 51 controls the electromagnetic plate 5 to generate magnetism, thereby fixing the magnetic material on the inclined surface of the second hopper 32. This prevents the material already on the inclined surface of the second hopper 32 from sliding down under its own gravity, improving the material discharge accuracy. This method is effective for fixing magnetic materials.

[0032] To reduce damage to materials, the electromagnetic plate 5 adopts a stepped power-off design, first reducing the magnetic force by 50% and then completely eliminating it. This prevents materials from suddenly slipping due to gravity caused by a sudden power outage, instead allowing pre-vibration to ensure smooth material discharge, reducing impact and protecting materials at the inclined end. Figure 4 As shown, a vision sensor 8 for counting the discharged material is installed on the top of the hopper 2 32. One end of the vision sensor 8 is fixedly connected to the outer wall of the storage hopper 2. During the discharge process, the vision sensor 8 can count the discharge status of the material in real time. After reaching a certain quantity, it sends a command to the vibration power component 4 to stop the material discharge.

[0033] To ensure that hopper 2 32 maintains a stable tilt angle, a locking component 7 is installed to lock the tilt angle of hopper 2 32 after adjustment, ensuring that hopper 2 32 remains in a stable state. Figure 5 - Figure 6 As shown, a locking assembly 7 is provided at hopper 2 32 to fix the position of hopper 2 32 after angle adjustment. The locking assembly 7 includes a drive gear 71 fixedly sleeved on the outer peripheral walls of both sides of the drive shaft 321. A locking tooth plate 72 is engaged on one side of the drive gear 71. A set of connecting plates 73 that are slidably connected to hopper 1 31 are fixedly connected to the outer walls of the two sets of locking tooth plates 72. When adjusting the tilt angle of hopper 2 32, the locking tooth plate 72 separates from the drive gear 71. By rotating the drive knob 322, the drive shaft 321 drives hopper 2 32 to adjust to a suitable angle. Then, by rotating the locking screw 75, the locking screw 75 pushes the connecting plate 73 and the two sets of locking tooth plates 72 to move towards the drive gear 71 and engage with it, thereby locking the drive shaft 321 and ensuring that hopper 2 32 is in a fixed state.

[0034] A fixing plate 74 is fixedly installed at the bottom of the hopper 31. A locking screw 75 is threaded inside the fixing plate 74. One end of the locking screw 75 is rotatably connected to the outer wall of the connecting plate 73.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] 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 piezoelectric vibrating hopper, comprising a support frame (1) and a storage hopper (2) fixedly installed on its top, wherein a vibrating discharge hopper (3) and a vibrating power assembly (4) are sequentially arranged at the bottom of the storage hopper (2), characterized in that: The vibrating discharge hopper (3) consists of a horizontal section hopper one (31) and an inclined section hopper two (32). The hopper two (32) is rotatably connected to the bottom of the hopper one (31). An electromagnetic plate (5) for adsorbing and fixing magnetic materials is fixedly installed on the inner top of the hopper two (32). The top of the electromagnetic plate (5) is uniformly provided with negative pressure holes (6) for adsorbing and fixing non-magnetic materials. A negative pressure cavity (61) is formed between the electromagnetic plate (5) and the top of the hopper (32). A connecting air pipe (62) communicating with the inside of the negative pressure cavity (61) is fixedly installed at the bottom of the hopper (32).

2. The piezoelectric vibratory hopper of claim 1, wherein: One end of the hopper (31) is located at the bottom of the discharge port of the storage hopper (2).

3. The piezoelectric vibratory hopper of claim 1, wherein: A drive shaft (321) is rotatably connected between the bottom of hopper one (31) and the end of hopper two (32). The end of the drive shaft (321) passes through the bottom side wall of hopper two (32) and is fixedly connected to a drive knob (322).

4. The piezoelectric vibratory hopper of claim 1, wherein: The outer wall of the second hopper (32) is fixedly installed with a relay (51) that controls the start and stop of the electromagnetic plate (5), and the electromagnetic plate (5) is set in a stepped power-off manner.

5. The piezoelectric vibratory hopper of claim 4, wherein: The top of the second hopper (32) is provided with a visual sensor (8) for counting the discharged material, and one end of the visual sensor (8) is fixedly connected to the outer wall of the storage hopper (2).

6. The piezoelectric vibratory hopper of claim 1, wherein: The second hopper (32) is provided with a locking component (7) to fix the position of the second hopper (32) after the angle is adjusted. The locking component (7) includes a drive gear (71) fixedly sleeved on the outer peripheral walls of both sides of the drive shaft (321). A locking tooth plate (72) is engaged on one side of the drive gear (71). A set of connecting plates (73) that are slidably connected to the outer walls of the two sets of locking tooth plates (72) are fixedly connected to the first hopper (31).

7. The piezoelectric vibratory hopper of claim 6, wherein: A fixing plate (74) is fixedly installed at the bottom of the hopper (31). A locking screw (75) is threaded inside the fixing plate (74). One end of the locking screw (75) is rotatably connected to the outer wall of the connecting plate (73).

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