Feeding jig applied to micro nut production

Abstract

The utility model particularly relates to a feeding jig applied to miniature nut production, and belongs to the technical field of nut feeding. A first feeding guide rail is arranged on one side of a material disc of a disc vibrating screen, and a blind selection coil arranged in the material disc of the disc vibrating screen is arranged at one end of a first feeding groove; a linear rail of the linear vibrating screen is provided with a second feeding guide rail which is flush with and opposite to the first feeding guide rail. According to the design, on the basis of circular screen vibration feeding of the disc vibrating screen, micro nuts are fed into the blind selection coil in a vibrating mode in a blind selection feeding mode, at the moment, when the large radial direction of the micro nuts is upward, the micro nuts are limited and supported by the blind selection coil and are continuously fed in a vibrating mode, and when the small diameter of the micro nuts is upward, the micro nuts cannot be limited by the blind selection coil; the miniature nuts fall back into the disc vibrating screen, then the miniature nuts are unloaded into the blanking tool to be fed under vibration conveying of the first feeding guide rail and vibration conveying of the second feeding guide rail on the linear vibrating screen, feeding is more accurate, and feeding continuity and stability are better.

Description

Technical Field

[0001] This utility model belongs to the field of nut feeding technology, specifically relating to a feeding fixture used in the production of miniature nuts. Background Technology

[0002] Miniature nuts have a wide range of applications in many fields, including machinery manufacturing, automobile manufacturing, construction engineering, shipbuilding, and daily life. For example, in machinery manufacturing, miniature nuts are mainly used to connect and fasten various machine parts to ensure the normal operation of mechanical equipment. In automobile manufacturing, miniature nuts are widely used to connect wheels and axles to ensure the stability and safety of the wheels.

[0003] With the widespread demand for miniature nuts, mechanical feeding is typically used in their production process to continuously feed them in batches. As shown in the Chinese Patent Network, a feeding fixture for miniature nuts (publication announcement number CN220431399U) is used. In this type of device, the nuts are poured into the nut hopper and flow along the buffer hopper into the nut front and back screening mechanism. At this time, the air blowing ports on both sides of the nut front and back screening mechanism start blowing air at a set frequency. During the blowing process, nuts with accurate front and back positions are sent to the buffer hopper, while nuts with inaccurate front and back positions cannot pass through. Nuts with the front position flow into the buffer hopper. Then, the air pipe in the buffer hopper starts blowing air to send the nuts to the discharge end along four tracks. The air blowing device at the discharge end starts blowing air to send the nuts to the ultrasonic welding fixture.

[0004] However, there are still some shortcomings in the nut feeding fixtures mentioned above and those used in the existing market: the existing methods of using air blowing, flipping and other methods to achieve micro nut flipping and feeding have high requirements for the precision of linkage between the components, and are very prone to drive deviation, which can cause the nut to jam.

[0005] To address this, those skilled in the art have provided a feeding fixture for the production of miniature nuts, in order to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a feeding fixture for the production of miniature nuts, which can solve the problems mentioned in the background art.

[0007] The specific technical solution adopted in this utility model is as follows:

[0008] A feeding fixture for the production of miniature nuts includes a disc vibrating screen and a linear vibrating screen; the disc vibrating screen has a first feeding guide rail on one side of its material tray, the first feeding guide rail has a first feeding groove along its track direction, and one end of the first feeding groove is equipped with a blind selection coil built into the material tray of the disc vibrating screen; the linear vibrating screen has a second feeding guide rail flush with and opposite to the first feeding guide rail, the second feeding guide rail has a second feeding groove along its track direction; the other end of the second feeding groove is equipped with a discharge fixture.

[0009] The present invention is further configured such that the blind selection coils are arranged in pairs, and the blind selection coils have an arc-shaped structure, with the arc-shaped coils of the blind selection coils arranged along the vibrating path of the disc vibrating screen.

[0010] The present invention is further configured such that: the first feeding groove includes a first nut large diameter slide groove and a first nut small diameter slide groove disposed below the first nut large diameter slide groove.

[0011] The present invention is further configured such that: the second feeding groove includes a second nut large diameter slide groove and a second nut small diameter slide groove located below the second nut large diameter slide groove.

[0012] The present invention is further configured such that: a material discharge slot is provided at one end of the second feeding trough near the unloading direction, and a displacement sensor installed on the second feeding guide rail is provided directly above the material discharge slot.

[0013] The present invention is further configured such that: the unloading fixture includes a track frame arranged along the direction of the second feeding groove slide, the track frame has a track slide table on its slide rail, and one end of the track frame is provided with an electric push rod that supports the track slide table, and the table surface of the track slide table is provided with an unloading groove opposite to the unloading groove.

[0014] The present invention is further configured such that the unloading troughs are arranged in multiple groups at equal intervals, and the unloading troughs are directly below the opening of the material discharge slot.

[0015] The technical effects achieved by this utility model are as follows:

[0016] This utility model discloses a feeding fixture for the production of miniature nuts. Based on the circular screen vibration feeding of a disc vibrating screen, the miniature nuts are vibrated and fed into the blind selection coil in a blind selection method. At this time, when the large radial direction of the miniature nut is upward, it is limited and supported by the blind selection coil and continues to vibrate and feed. When the small radial direction of the miniature nut is upward, the blind selection coil can no longer limit it and it falls back into the disc vibrating screen, so that the miniature nut is always vibrated and fed in a way that keeps the large radial direction upward. Then, under the vibrating conveying of the first feeding guide rail and the vibrating conveying of the second feeding guide rail on the linear vibrating screen, the miniature nut is unloaded into the unloading fixture for feeding. The feeding is more accurate and the continuous feeding stability is better. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the structure of the first feeding guide rail in this application.

[0019] Figure 3 This is a schematic diagram of the structure of the second feeding guide rail in this application.

[0020] Figure 4 This is a schematic diagram of the material unloading tooling used in this application.

[0021] In the diagram: 1. Disc vibrating screen; 2. Linear vibrating screen; 3. First feeding guide rail; 4. First feeding chute; 41. First nut large diameter groove; 42. First nut small diameter groove; 5. Blind selection coil; 6. Second feeding guide rail; 7. Second feeding chute; 71. Second nut large diameter groove; 72. Second nut small diameter groove; 8. Track frame; 9. Track slide; 10. Discharge slot; 11. Displacement sensor; 12. Electric push rod; 13. Discharge chute; Detailed Implementation

[0022] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figure 1 As shown, a feeding fixture for the production of miniature nuts includes a disc vibrating screen 1 and a linear vibrating screen 2. One end of the first feeding trough 4 is equipped with a blind selection coil 5 built into the material tray of the disc vibrating screen 1. When feeding miniature nuts in an orderly manner, the miniature nuts are poured into the material tray of the disc vibrating screen 1. Using the vibration of the disc vibrating screen 1, the miniature nuts are vibrated and fed onto the blind selection coil 5 in a blind selection manner. At this time, the blind selection coil 5 selects the material. When the large radial direction of the miniature nut is upward, it is clamped and limited by the blind selection coil 5 and continues to vibrate and feed. When the small radial direction of the miniature nut is upward, the blind selection coil 5 can no longer limit it and it falls back to the disc vibrating screen 1 for blind selection and feeding again. This ensures that the miniature nuts are always vibrated and fed in a large radial direction, so that the miniature nuts are selected and transported in an orderly manner from the source.

[0024] It should be noted that the blind selection coils 5 are arranged in pairs and have an arc-shaped structure. The arc-shaped coils of the blind selection coils 5 are set along the vibrating path of the disc vibrating screen 1. By setting the blind selection coils 5 in two pairs, a feeding channel is formed between them. When the micro nut moves upward in the large radial direction, it is supported by the ring of the blind selection coil 5. When it moves upward in the small radial direction, it cannot be limited by the ring and returns to the disc vibrating screen 1 for continuous blind selection feeding, so that the micro nut maintains an orderly feeding state at the source.

[0025] As a further embodiment of this invention, a first feeding guide rail 3 is provided on one side of the material tray of the disc vibrating screen 1. The first feeding guide rail 3 has a first feeding groove 4 along its track direction. The first feeding groove 4 includes a first nut large diameter slide groove 41 and a first nut small diameter slide groove 42 located below the first nut large diameter slide groove 41. The micro nuts vibrated and fed by the blind selection coil 5 are orderly conveyed into the first feeding groove 4 in the first feeding guide rail 3. By utilizing the combination of the first nut large diameter slide groove 41 and the first nut small diameter slide groove 42 in the first feeding groove 4, the large diameter of the micro nut is kept upward and the small diameter is kept downward, and the material is conveyed and fed in an orderly manner by vibration, which further limits and selects the material for the feeding state of the micro nuts.

[0026] Furthermore, the linear vibrating screen 2 has a second feeding guide rail 6 that is flush with and opposite to the first feeding guide rail 3. The second feeding guide rail 6 has a second feeding groove 7 along its track direction. The second feeding groove 7 includes a second nut large diameter slide groove 71 and a second nut small diameter slide groove 72 located below the second nut large diameter slide groove 71. The miniature nuts conveyed by the first feeding guide rail 3 are vibrated and fed into the second feeding groove 7 of the second feeding guide rail 6 in an orderly manner. By utilizing the combination of the second nut large diameter slide groove 71 and the second nut small diameter slide groove 72 in the second feeding groove 7, the large diameter of the miniature nut is kept upward and the small diameter is kept downward, and the feeding is carried out in an orderly vibrating manner. The feeding state of the miniature nuts is limited and selected again. Then, under the vibration conveying of the linear vibrating screen 2, the miniature nuts are vibrated and conveyed for unloading.

[0027] In addition, a material discharge slot 10 is provided at one end of the second feeding trough 7 near the unloading direction, and a material discharge fixture is provided at the other end of the second feeding trough 7. The material discharge fixture includes a track frame 8 arranged along the sliding direction of the second feeding trough 7. The track frame 8 has a track slide 9 on its slide rail, and an electric push rod 12 supporting the track slide 9 is provided at one end of the track frame 8. The table surface of the track slide 9 has an unloading trough 13 opposite to the material discharge slot 10. The miniature nuts conveyed by the vibration of the second feeding trough 7 fall one by one through the material discharge slot 10 and fall into the unloading trough 13. At this time, when the material discharge ends, the electric push rod 12 is controlled to extend and retract, pushing the track slide 9 to slide along the track frame 8, so that the next set of unloading troughs 13 is directly opposite the material discharge slot 10, so as to collect the miniature nuts in an orderly manner, so as to facilitate the orderly use of the miniature nuts in the future.

[0028] It should be noted that a displacement sensor 11 is installed on the second feeding guide rail 6 directly above the material discharge slot 10. The unloading slots 13 are arranged in multiple groups at equal intervals, and the unloading slots 13 are directly below the slot opening of the material discharge slot 10. When the miniature nuts fall one by one from the material discharge slot 10 into the unloading slot 13, the displacement sensor 11 is used to detect the falling state of the miniature nuts so that the electric push rod 12 can push the track slide 9 to align the next set of unloading slots 13 with the material discharge slot 10 in an orderly manner.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A feeding fixture for the production of miniature nuts, characterized in that: It includes a disc vibrating screen (1) and a linear vibrating screen (2); The disc vibrating screen (1) has a first feeding guide rail (3) on one side of the material tray. The first feeding guide rail (3) has a first feeding groove (4) along its track direction. One end of the first feeding groove (4) is equipped with a blind selection coil (5) built into the material tray of the disc vibrating screen (1). The linear vibrating screen (2) has a second feeding guide rail (6) that is flush with and opposite to the first feeding guide rail (3), and the second feeding guide rail (6) has a second feeding trough (7) along its track direction. The other end of the second feeding trough (7) is provided with a material discharge fixture.

2. The feeding fixture for miniature nut production according to claim 1, characterized in that, The blind selection coils (5) are arranged in pairs, and the blind selection coils (5) have an arc-shaped structure. The arc-shaped coils of the blind selection coils (5) are set along the vibrating path of the disc vibrating screen (1).

3. The feeding fixture for miniature nut production according to claim 1, characterized in that, The first feeding groove (4) includes a first nut large diameter slide groove (41) and a first nut small diameter slide groove (42) located below the first nut large diameter slide groove (41).

4. A feeding fixture for the production of miniature nuts according to claim 1, characterized in that, The second feeding groove (7) includes a second nut large diameter slide groove (71) and a second nut small diameter slide groove (72) located below the second nut large diameter slide groove (71).

5. A feeding fixture for the production of miniature nuts according to claim 1, characterized in that, The second feeding trough (7) has a discharge slot (10) at one end near the discharge direction, and a displacement sensor (11) installed on the second feeding guide rail (6) is provided directly above the discharge slot (10).

6. A feeding fixture for the production of miniature nuts according to claim 5, characterized in that, The unloading fixture includes a track frame (8) arranged along the slide direction of the second loading groove (7). The track frame (8) has a track slide (9) on its slide rail, and one end of the track frame (8) is provided with an electric push rod (12) that supports the track slide (9). The table surface of the track slide (9) is provided with an unloading groove (13) opposite to the unloading slot (10).

7. A feeding fixture for the production of miniature nuts according to claim 6, characterized in that, The unloading trough (13) is arranged in multiple groups at equal intervals, and the unloading trough (13) is directly below the opening of the material dropping slot (10).

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