A screening device for fastener production

Abstract

This utility model relates to the field of screening device technology, and provides a screening device for fastener production, used for screening fasteners and waste. The material platform has a material passage extending from its feed side to its discharge side; an installation slot is opened on the material platform, and a vibrating component is fixedly installed at the bottom of the material platform; several fixed screening rods and several movable screening rods are arranged in parallel at intervals in the installation slot; each movable screening rod is located directly below two adjacent fixed screening rods; wherein, one end of several movable screening rods near the discharge side of the material platform is fixedly connected to the side wall of the installation slot, and the other end of the movable screening rod extends from the feed side to the bottom of the material platform; a screening gap is formed between an adjacent movable screening rod and a fixed screening rod. Through the adjustable gap design of the fixed screening rods and movable screening rods, it can adapt to fasteners of different sizes, reduce screening leakage, improve screening efficiency, and ensure the quality of qualified fasteners.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, specifically to a screening device for fastener production. Background Technology

[0002] Screening is a crucial step in ensuring product quality during fastener production. After fasteners are formed, a large amount of metal waste and impurities generated during production often remain on and around their surface. If these wastes are not effectively separated, they will enter subsequent processes with the fasteners, potentially affecting the assembly accuracy and performance of the product, and also accelerating equipment wear and increasing production losses.

[0003] Currently, most fastener screening devices used in the industry are vibrating screens, which rely on the vibration of the screen mesh to separate fasteners from waste materials through differences in mesh size. However, existing screening devices have significant limitations: firstly, the mesh size is usually fixed, making it difficult to adapt to fasteners of different specifications and sizes. For waste materials with sizes close to the mesh mesh size, jamming or leakage can easily occur. This inadequate separation not only reduces screening efficiency, increases the workload of manual secondary sorting, and raises production costs, but also affects the quality of qualified fasteners due to residual impurities, and may even pose a potential threat to the operational safety of equipment in downstream applications. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this utility model provide a screening device for fastener production, which solves the technical problem of insufficient separation of fasteners and waste chips during the screening process in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a screening device for fastener production, used for screening fasteners and waste chips, comprising: The material platform has a material passage extending from its inlet side to its outlet side, the material passage being used for fasteners and waste chips to pass through; the material platform is provided with an installation slot, the installation slot being located on the extension path of the material passage and close to the outlet side of the material platform. A vibrating element is fixedly installed at the bottom of the material platform. The vibrating element is used to drive the material platform to vibrate so that the fasteners and waste chips located in the material passage move from the feed side to the discharge side. Fixed screening rods are provided, and several fixed screening rods are arranged in parallel at intervals along the direction from the feed side to the discharge side of the material platform, and each fixed screening rod is fixedly installed in the installation through groove. The movable screening rod is provided in several pieces. The movable screening rods are arranged in parallel at intervals along the direction from the feed side to the discharge side of the material platform. Each movable screening rod is located directly below two adjacent fixed screening rods. In this configuration, one end of each of the movable screening rods near the discharge side of the material platform is fixedly connected to the side wall of the mounting slot, and the other end of each movable screening rod extends from the feed side to the bottom of the material platform; a screening gap is formed between an adjacent movable screening rod and a fixed screening rod, and the screening gap is used to allow waste chips to pass through.

[0006] Optional, also includes: Mounting plates, having a plurality of mounting plates, are respectively disposed on the outer walls of both sides of the material platform, and mounting holes are provided on the mounting plates; An adjusting component is detachably disposed within the mounting hole. The movable end of the adjusting component abuts against the movable screening rod. The adjusting component can push the movable screening rod towards the fixed screening rod to adjust the size of the screening gap.

[0007] Optionally, the adjusting element includes: An adjusting rod is provided below the material platform and extends along the width of the mounting groove, and the adjusting rod abuts against the movable screening rod; A bolt is provided in the mounting hole, and the adjusting rod is fixedly connected to the hexagonal head of the bolt; The nut has two parts, both of which are threaded onto the bolt. The two nuts are located on the upper and lower surfaces of the mounting plate, respectively. When the two nuts are tightened, they are used to fix the bolt to the mounting plate.

[0008] Optional, also includes: The filter plate is detachably installed at the bottom of the material platform and located below the mounting groove. The filter plate is arranged parallel to the material platform and is used to receive waste chips falling through the gap of the screen. A slag outlet is provided on the filter plate near the discharge side of the material platform. A slag collection trough is provided below the material platform and at one end of the slag outlet of the filter plate. The slag collection trough is used to collect the waste falling from the filter plate.

[0009] Optionally, the filter plate has a plurality of filter holes, which are used to filter out the liquid entrained in the fasteners and waste.

[0010] Optionally, the vibrating element includes: An inclined platform is disposed below the material platform and is used to support the material platform so that the material platform tilts downward from the feeding side to the discharging side. An elastic base is disposed below the tilting platform; A vibrator is mounted on the elastic base and is used to drive the material table to vibrate.

[0011] Optionally, the resilient base includes: Support plate; An elastic element is provided, wherein there are several elastic elements, and the several elastic elements are respectively disposed at the corners of the support plate, and the end of the elastic element away from the support plate abuts against the lower surface of the inclined platform.

[0012] Optionally, the material platform is provided with a stop, the stop comprising: The mounting rod is disposed inside the material platform and located above the fixed screen rod; A baffle is disposed on the mounting rod and extends downward along the side of the material platform away from the mounting rod to above the fixed screen rod.

[0013] Optional, also includes: A guide plate, which is disposed on the material platform and located on the discharge side; A receiving bin is located below the guide plate and is used to collect fasteners that fall through the guide plate.

[0014] Optionally, both the fixed screening rod and the movable screening rod are cylindrical rods.

[0015] The beneficial effects of this utility model are as follows: In this invention, the material passage of the material platform, driven by a vibrating component, ensures that fasteners and waste chips move stably towards the discharge side, preventing material accumulation. The parallel spacing between the fixed and movable screening rods forms a screening gap, with one end of the movable screening rod fixed and the other extending below the material platform. This structure ensures the stability of the gap and facilitates the smooth falling of waste chips. The combination of the fixed and movable screening rods and the adjustable gap design improves the adaptability to fasteners of different specifications, reduces waste chip jamming or missed screening, and improves screening efficiency. At the same time, the synergistic effect of vibration and the screening gap can fully separate fasteners and waste chips, reducing the cost of secondary manual sorting and ensuring the quality of qualified fasteners. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a screening device for fastener production in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the screening device for fastener production from another angle in the embodiment; Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 for Figure 1 The schematic diagram of the fixed screen rod, the movable screen rod, and the filter plate in the embodiment is shown.

[0018] In the diagram: 1. Material platform; 101. Feeding side; 102. Discharge side; 103. Material passage; 104. Mounting slot; 2. Vibrating component; 21. Inclined platform; 221. Support plate; 222. Elastic component; 22. Elastic base; 23. Vibrator; 3. Fixed screen rod; 4. Movable screen rod; 401. Screening gap; 5. Mounting plate; 501. Mounting hole; 6. Adjusting component; 61. Adjusting rod; 62. Bolt; 63. Nut; 7. Filter plate; 701. Filter hole; 8. Baffle; 81. Mounting rod; 82. Baffle; 9. Slag collection trough; 10. Guide plate; 11. Receiving bin. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0019] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element 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.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-4The diagram illustrates a screening device for fastener production according to an embodiment of the present invention, used for screening fasteners and waste materials. It includes a material platform 1, a vibrating element 2, a fixed screening rod 3, and a movable screening rod 4. Specifically, the material platform 1 has a material passage 103 extending from its inlet side 101 to its outlet side 102, for fasteners and waste materials to pass through. An installation slot 104 is provided on the material platform 1, located along the extension path of the material passage 103 and close to the outlet side 102 of the material platform 1. The vibrating element 2 is fixedly installed at the bottom of the material platform 1. 2 is used to drive the material platform 1 to vibrate, so that the fasteners and waste located in the material passage 103 move from the feed side 101 to the discharge side 102; a number of fixed screen components are provided, and a number of fixed screen rods 3 are arranged parallel to each other along the direction from the feed side 101 to the discharge side 102 of the material platform 1, and each fixed screen rod 3 is fixedly installed in the installation through groove 104; a number of movable screen components are provided, and a number of movable screen rods 4 are arranged parallel to each other along the direction from the feed side 101 to the discharge side 102 of the material platform 1, and each movable screen rod 4 is located directly below two adjacent fixed screen rods 3.

[0025] Among them, one end of several movable screening rods 4 near the discharge side 102 of the material platform 1 is fixedly connected to the side wall of the mounting groove 104, and the other end of the movable screening rods 4 extends from the feed side 101 to the bottom of the material platform 1; a screening gap 401 is formed between an adjacent movable screening rod 4 and a fixed screening rod 3, and the screening gap 401 is used to pass waste chips.

[0026] It should be noted that while fasteners are produced using a production device, waste debris is mixed in during the production process. The fasteners and debris are then conveyed to the feed side 101 of the material platform 1 for screening. The vibrating element 2 activates, driving the material platform 1 to vibrate, causing the fasteners and debris to move along the material passage 103 towards the discharge side 102. When passing through the installation slot 104, the debris falls through the screening gap 401 formed by the fixed screening rod 3 and the movable screening rod 4, while the fasteners continue to move to the discharge side 102. Screening through the screening gap 401 formed by the fixed screening rod 3 and the movable screening rod 4 better accommodates fasteners of different specifications within a certain range, reduces debris jamming or missed screening, improves screening efficiency, reduces the workload of manual secondary sorting, and ensures fastener quality.

[0027] For example, such as Figure 1As shown, in some examples, the screening device for fastener production also includes a mounting plate 5 and an adjusting member 6. There are several mounting plates 5, which are respectively disposed on the outer walls of both sides of the material platform 1. The mounting plates 5 are provided with mounting holes 501. The adjusting member 6 is detachably disposed in the mounting hole 501. The movable end of the adjusting member 6 abuts against the movable screening rod 4. The adjusting member 6 can push the movable screening rod 4 in the direction of the fixed screening rod 3 to adjust the size of the screening gap 401.

[0028] Specifically, when it is necessary to screen fasteners of different specifications, the adjusting component 6 is adjusted so that its movable end pushes the movable screening rod 4 towards the fixed screening rod 3, changing the size of the screening gap 401 to accommodate fasteners and waste of different sizes. The screening gap 401 can be flexibly adjusted according to the fastener specifications, further improving the adaptability of the device to fasteners of different specifications, expanding the applicability of the device, and enhancing the targeting and effectiveness of screening.

[0029] For example, such as Figure 3 As shown, in some examples, the adjusting member 6 includes an adjusting rod 61 extending along the width of the mounting slot 104 and abutting against the movable screen rod 4, a bolt 62 disposed in the mounting hole 501 and fixedly connected to the adjusting rod 61, and two nuts 63 threaded onto the bolt 62 and located on the upper and lower surfaces of the mounting plate 5, respectively.

[0030] Specifically, when adjusting the screening gap 401, bolt 62 is fixedly mounted on the adjusting component 6. By loosening and tightening nut 63, the adjusting rod 61 moves up and down, thereby pushing the movable screening rod 4 to adjust its position. After the gap is appropriate, the two nuts 63 are tightened to fix it on the mounting plate 5. The adjusting rod 61 is fixed by the cooperation of bolt 62 and nut 63. The adjustment method is simple and convenient, and the fixation is firm, which can stably maintain the adjusted screening gap 401, ensuring the stability and accuracy of the screening process.

[0031] For example, such as Figure 4 As shown, in some examples, the screening device for fastener production also includes a filter plate 7 and a slag collection trough 9. The filter plate 7 is detachably installed at the bottom of the material platform 1 and located below the installation channel 104. The filter plate 7 is arranged parallel to the material platform 1 and is used to collect the waste falling through the screening gap 401. The filter plate 7 has a slag outlet at a position near the discharge side 102 of the material platform 1. The slag collection trough 9 is located below the material platform 1 and at one end of the slag outlet of the filter plate 7. The slag collection trough 9 is used to collect the waste falling from the filter plate 7.

[0032] During the screening process, waste particles falling from the screen gap 401 land on the filter plate 7. As the device vibrates, the waste particles move along the filter plate 7 to the slag outlet and fall into the slag collection trough 9 for collection. The filter plate 7 and the slag collection trough 9 are designed to collect the waste particles centrally, preventing them from scattering and facilitating subsequent processing.

[0033] For example, such as Figure 4 As shown, in some examples, the filter plate 7 has several filter holes 701, which are used to filter out the liquid entrained in the fasteners and waste. Specifically, when oil needs to be added to the fasteners during the production process, this oil is fed onto the feed platform 1 along with the fasteners and waste. When the fasteners and waste are separated, the oil flows through the screen gap 401 onto the filter plate 7, and then flows out through the filter holes 701 on the filter plate 7. The waste remains on the filter plate 7 and eventually enters the slag collection tank 9.

[0034] For example, such as Figure 1 As shown, in some examples, the vibrating element 2 includes an inclined platform 21 located below the material platform 1 to support it and tilt it downwards from the feed side 101 to the discharge side 102; an elastic base 22 located below the inclined platform 21; and a vibrator 23 located on the elastic base 22. Specifically, when the vibrator 23 is activated, the inclined platform 21 drives the material platform 1 to vibrate under the action of the elastic base 22. Simultaneously, due to the tilt of the material platform 1, the fasteners and waste materials move faster along the material passage 103 towards the discharge side 102 under the combined action of vibration and gravity. The tilt of the material platform 1 combined with vibration accelerates the movement speed of the fasteners and waste materials, improving screening efficiency. The elastic base 22 reduces the impact of vibration on other components of the device, extending the service life of the device.

[0035] For example, such as Figure 2 As shown, in some examples, the elastic base 22 includes a support plate 221 and an elastic element 222. The elastic element 222 is a spring and four springs are provided. The four springs are respectively provided at the four corners of the support plate 221, and the ends of the springs away from the support plate 221 abut against the lower surface of the tilting platform 21.

[0036] Specifically, when the vibrator 23 is working, the vibration is transmitted to the spring through the tilting platform 21. The spring deforms and generates a rebound force, causing the material platform 1 to vibrate continuously, while buffering the impact of the vibration on the support plate 221 and the ground. The spring is set at the corner of the support plate 221, so that the tilting platform 21 is subjected to uniform force, the vibration is stable, and the buffering effect is good, reducing the noise generated by the vibration and the damage to the equipment.

[0037] For example, such as Figure 1As shown, in some examples, a baffle 8 is provided on the material platform 1. The baffle 8 includes a mounting rod 81 and a baffle 82. The mounting rod 81 is located inside the material platform 1 and above the fixed screening rod 3. The mounting rod 81 is provided with a baffle 82 that extends downward along the side of the material platform 1 away from the mounting rod 81 to above the fixed screening rod 3. When fasteners and waste chips move on the material platform 1, when they pass the baffle 82, the baffle 82 can contact the surface of the fasteners and scrape the waste chips on the surface of the fasteners again, making the separation of fasteners and waste chips more thorough, reducing the waste chip residue on the surface of the fasteners, avoiding the problem of manual secondary screening, and improving the screening efficiency.

[0038] For example, such as Figure 1 As shown, in some examples, the screening device for fastener production also includes a guide plate 10 and a receiving bin 11. The guide plate 10 is provided on the material platform 1 and is located on the discharge side 102. The receiving bin 11 is located below the guide plate 10 and is used to collect fasteners falling through the guide plate 10. After screening, the fasteners move from the discharge side 102 to the guide plate 10 and fall into the receiving bin 11 for collection. The guide plate 10 can guide the fasteners to fall accurately into the receiving bin 11, facilitating the centralized collection and subsequent processing of the screened fasteners.

[0039] For example, such as Figure 4 As shown, in some examples, both the fixed screen rod 3 and the movable screen rod 4 are cylindrical rods. Specifically, during the screening process, the cylindrical screen rod has a smooth surface, low friction, and reduces jamming. The cylindrical rod structure reduces the jamming of fasteners and waste during the screening process, further improving screening efficiency, while reducing wear on the screen rod and fasteners.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A screening device for fastener production, used for screening fasteners and waste chips, characterized in that, include: A material platform (1) has a material passage (103) extending from its feed side (101) to its discharge side (102), the material passage (103) being used for fasteners and waste chips to pass through; an installation slot (104) is provided on the material platform (1), the installation slot (104) being located on the extension path of the material passage (103) and close to the discharge side (102) of the material platform (1); Vibrating element (2), the vibrating element (2) is fixedly installed at the bottom of the material platform (1), the vibrating element (2) is used to drive the material platform (1) to vibrate so that the fasteners and waste located in the material passage (103) move from the feeding side (101) to the discharging side (102); Fixed screen rods (3) are provided in a plurality of them. The plurality of fixed screen rods (3) are arranged in parallel at intervals along the direction from the feed side (101) to the discharge side (102) of the material platform (1), and each fixed screen rod (3) is fixedly installed in the installation through groove (104). Movable screen rod (4), there are several movable screen rods (4), and several movable screen rods (4) are arranged in parallel and spaced along the direction from the feed side (101) to the discharge side (102) of the material platform (1). Each movable screen rod (4) is located directly below two adjacent fixed screen rods (3). Among them, one end of several of the movable screening rods (4) near the discharge side (102) of the material platform (1) is fixedly connected to the side wall of the mounting groove (104), and the other end of the movable screening rods (4) extends from the feed side (101) to the bottom of the material platform (1); a screening gap (401) is formed between an adjacent movable screening rod (4) and a fixed screening rod (3), and the screening gap (401) is used to pass waste chips.

2. The screening device for fastener production according to claim 1, characterized in that, Also includes: Mounting plate (5), there are several mounting plates (5), and several mounting plates (5) are respectively disposed on the outer walls of both sides of the material platform (1). Mounting holes (501) are opened on the mounting plates (5). Adjusting component (6) is detachably disposed in the mounting hole (501). The movable end of the adjusting component (6) abuts against the movable screen rod (4). The adjusting component (6) can push the movable screen rod (4) in the direction of the fixed screen rod (3) to adjust the size of the screen gap (401).

3. A screening device for fastener production according to claim 2, characterized in that, The adjusting member (6) includes: Adjusting rod (61), the adjusting rod (61) is located below the material platform (1) and extends along the width direction of the mounting groove (104), the adjusting rod (61) abuts against the movable screen rod (4); Bolt (62), the bolt (62) is disposed in the mounting hole (501), and the adjusting rod (61) is fixedly connected to the hexagonal head of the bolt (62); Nut (63), there are two nuts (63), both nuts (63) are threaded to the bolt (62), the two nuts (63) are located on the upper surface and the lower surface of the mounting plate (5) respectively, and the two nuts (63) are tightened to fix the bolt (62) to the mounting plate (5).

4. A screening device for fastener production according to claim 1, characterized in that, Also includes: The filter plate (7) is detachably disposed at the bottom of the material platform (1) and located below the mounting groove (104). The filter plate (7) is arranged parallel to the material platform (1). The filter plate (7) is used to receive the waste falling through the screen gap (401). The filter plate (7) has a slag outlet near the discharge side (102) of the material platform (1). The slag collection trough (9) is located below the material platform (1) and at one end of the slag outlet of the filter plate (7). The slag collection trough (9) is used to collect the waste falling from the filter plate (7).

5. A screening device for fastener production according to claim 4, characterized in that, The filter plate (7) has a plurality of filter holes (701) for filtering out liquids entrained in fasteners and waste.

6. A screening device for fastener production according to claim 1, characterized in that, The vibrating element (2) includes: An inclined platform (21) is provided below the material platform (1). The inclined platform (21) is used to support the material platform (1) so that the material platform (1) tilts downward from the feeding side (101) to the discharging side (102). An elastic base (22) is disposed below the tilting platform (21); Vibrator (23), which is mounted on the elastic base (22), is used to drive the material platform (1) to vibrate.

7. A screening device for fastener production according to claim 6, characterized in that, The elastic base (22) includes: Support plate (221); The elastic element (222) is provided in a plurality of parts, and the plurality of elastic elements (222) are respectively disposed at the corner of the support plate (221). The end of the elastic element (222) away from the support plate (221) abuts against the lower surface of the tilting platform (21).

8. A screening device for fastener production according to claim 1, characterized in that, The material platform (1) is provided with a stop (8), the stop (8) comprising: Mounting rod (81), which is located inside the material platform (1) and above the fixed screen rod (3); A baffle (82) is provided on the mounting rod (81) and extends downward along the side of the material platform (1) away from the mounting rod (81) to above the fixed screen rod (3).

9. A screening device for fastener production according to claim 1, characterized in that, Also includes: A guide plate (10) is disposed on the material platform (1) and located on the discharge side (102). The receiving bin (11) is located below the guide plate (10) and is used to collect fasteners that fall through the guide plate (10).

10. A screening device for fastener production according to claim 1, characterized in that, Both the fixed screen rod (3) and the movable screen rod (4) are cylindrical rods.

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