Automatic screw sorting and feeding device

Abstract

The utility model relates to hidden rail adjusting screw automatic feeding technology field, more specifically, it relates to a screw automatic sequencing feeding device, including frame, storehouse, belt material spare, sweep material spare, push material spare, unloading slide, storehouse assembly is in the frame and is used to place screw, and the belt material spare is located in the storehouse and moves along the vertical of storehouse to and fro, the top wall of belt material spare is equipped with the clamping groove, the clamping groove is used to place the stem of screw, and the sweep material spare is located on the storehouse and moves along the transverse of storehouse to and fro, and the push material spare is set up in the longitudinal both sides of storehouse with unloading slide, and in the vertical of storehouse all are located between sweep material spare and belt material spare, when the belt material spare rises to the preset height, the sweep material spare transverse movement is used for sweeping back the screw of belt material spare on the reverse state to the storehouse, and the push material spare is used for pushing the screw of belt material spare on the front state and moves to unloading slide, the utility model discloses a screw automatic sequencing feeding device has the effect of reducing processing noise, reduces equipment cost.

Description

Technical Field

[0001] This utility model relates to the field of automatic feeding technology for concealed rail adjusting screws, and in particular to an automatic screw sorting and feeding device. Background Technology

[0002] With the continuous development of intelligent manufacturing, automated assembly technology has become a core means to improve production efficiency and reduce labor costs. As a high-frequency and critical operation in the assembly process, the demand for automated feeding of screws is becoming increasingly prominent. Especially in the assembly of drawer concealed slide rails, the adjusting screws are usually non-standard parts with special structures, such as those with washers or non-standard heads. Achieving the directional sorting and stable delivery of the adjusting screws is a key link in automated production.

[0003] Currently, automated screw feeding solutions utilize circular vibratory feeders. The core structure includes a feeder body, base, electromagnetic vibrator, spring plates, and discharge track. The inner wall of the feeder body is equipped with a spiral guide rail. The electromagnetic vibrator drives the feeder body to vibrate, causing the disordered screws within the feeder body to gradually jump upwards along the spiral track under the combined action of gravity and vibration. Screws with abnormal postures are removed by a screening structure on the spiral guide rail, allowing screws that meet the orientation requirements to enter the discharge track. The circular structure of the feeder body extends the screening path of the spiral guide rail, allowing the screws to circulate during vibration. Unoriented screws fall back into the feeder body to re-enter the sorting process.

[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: First, the screws to be sorted and fed are placed inside the disc. During sorting and feeding, the screws inside the disc are vibrated by the electromagnetic vibrator, causing the screws inside the disc to continuously collide with the steel disc, resulting in large vibration and impact noise. Furthermore, when multiple devices work together, the sound waves will overlap, further deteriorating the workshop environment. Second, in order to ensure the screening path, the circular disc needs to have sufficient installation area, requiring a large space and having a relatively complex structure, resulting in high processing costs. Utility Model Content

[0005] In order to reduce noise generated during the use of the automatic screw feeding device, simplify the structure, and reduce manufacturing costs, this application provides an automatic screw sorting and feeding device.

[0006] The automatic screw sorting and feeding device provided by this utility model adopts the following technical solution:

[0007] An automatic screw sorting and feeding device includes a frame, a hopper, a conveyor belt, a sweeping component, a pushing component, and a discharge chute. The hopper is mounted on the frame and is used to hold screws. The conveyor belt is located in the hopper and moves back and forth vertically along the hopper. The top wall of the conveyor belt has a slot for holding the shank of a screw. The sweeping component is located on the hopper and moves back and forth horizontally along the hopper. The pushing component and the discharge chute are arranged opposite each other on the longitudinal sides of the hopper, and are both located vertically between the sweeping component and the conveyor belt. When the conveyor belt rises to a preset height, the sweeping component moves horizontally to sweep the screws on the conveyor belt that are in the reverse position back into the hopper. The pushing component pushes the screws on the conveyor belt that are in the forward position to move to the discharge chute.

[0008] Preferably, the device further includes a lifting cylinder. The bottom wall of the hopper is provided with a moving groove for sliding assembly with the material. The lifting cylinder is located below the hopper and is assembled with the frame to push the material back and forth along the vertical direction of the hopper.

[0009] Preferably, the device further includes a slider and a slide rail. One side of the slider is connected to the longitudinal sidewall of the strip, and the other side of the slider is slidably assembled with the slide rail. The slide rail is connected to the frame.

[0010] Preferably, the strip is provided with an inclined surface, which is gradually inclined from the top wall of the strip toward the lateral side wall of the strip.

[0011] Preferably, the inclined surface is provided in two sets, and the two sets of inclined surface are provided with the transverse side walls of the strip. The included angle α between the inclined surface and the top wall of the strip is 95°~100°.

[0012] Preferably, the device further includes a sweeping cylinder, which is assembled with the frame and is used to push the sweeping component to move back and forth laterally along the hopper. The sweeping component is a brush structure.

[0013] Preferably, it further includes a pusher cylinder, the pusher being assembled with the frame and used to push the pusher to move back and forth along the longitudinal direction of the hopper, the pusher being used to push the head of the screw on the material.

[0014] Preferably, the device further includes a guide component located between the feeding chute and the conveyor belt. The guide component has a guide groove that matches the slot. The top wall of the guide component has a guide portion that gradually slopes from the top wall of the guide component toward the feeding chute. When the conveyor belt rises to a preset height, the top wall of the guide component and the top wall of the conveyor belt are at the same height.

[0015] Preferably, the feeding slide is an arc shape with the opening facing upwards, and the top wall of the feeding slide is provided with a groove for placing the screw rod.

[0016] Preferably, it also includes a linear vibratory feeder, which is mounted on the frame and used to vibrate the discharge chute.

[0017] The beneficial effects of this utility model are as follows:

[0018] By using the vertical movement of the conveyor belt and the lateral sweeping and removal structure of the sweeper to replace the high-frequency vibration of the traditional vibratory feeder, the noise problem caused by the continuous high-frequency collision between the screw and the hopper is solved. This helps to improve the comfort of the working environment, reduce noise pollution, and effectively control workshop noise.

[0019] By using a vertical gravity-feed design for the hopper and the conveyor belt, the complex drive structure such as electromagnetic vibrators and spring plates is eliminated, simplifying the device structure and reducing manufacturing costs. At the same time, the structure of the hopper is not limited to a circular design, saving the large installation space required for a circular vibratory feeder and facilitating flexible deployment in high-density workshop environments.

[0020] The material-sweeping cylinder pushes the material-sweeping component to move linearly, and a brush is used as the sweeping end of the material-sweeping component. Under the push of the material-sweeping component, the material will slide down along the inclined surface of the material into the hopper. This solves the problem that rigid scrapers may scratch the surface of screws or damage the groove of the material-sweeping component, improves the gentleness and compatibility of the sweeping process, helps to protect the surface quality of screws and extend the service life of the material-sweeping component. At the same time, the flexible bristle structure of the brush helps to enhance the equipment's versatility for various types of screws. Attached Figure Description

[0021] Figure 1 This is a perspective view of an embodiment of this application;

[0022] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is the front view in an embodiment of this application;

[0024] Figure 4 This is a top view of an embodiment of this application;

[0025] Figure 5 This is a cross-sectional perspective view of an embodiment of this application;

[0026] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle;

[0027] Figure 7This is a partial perspective view of an embodiment of this application;

[0028] Figure 8 This is a perspective view of the guide component in the embodiments of this application;

[0029] Figure 9 This is a partial front view of the guide component in an embodiment of this application;

[0030] Figure 10 This is a perspective view of the component with material in the embodiment of this application;

[0031] Figure 11 This is a partial left view of the strip component in an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Hopper; 201. Moving trough; 3. Material conveyor; 301. Slot; 302. Lifting cylinder; 303. Slider; 304. Slide rail; 3035. Inclined surface; 4. Sweeping component; 401. Sweeping cylinder; 5. Pushing component; 501. Pushing cylinder; 6. Unloading slide; 601. Slide groove; 602. Vibrating feeder; 603. Limiting groove; 7. Guide component; 701. Guide groove; 702. Guide section. Detailed Implementation

[0033] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0034] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0035] In the description of this application, if directional descriptions are involved, such as "lateral," "longitudinal," or "vertical" indicating directional or positional relationships, it is based on the appendix. Figure 1 The orientation or positional relationship shown is represented by the X-axis as "horizontal", the Y-axis as "vertical", and the Z-axis as "vertical".

[0036] In the description of this application, the term "several" means one or more, and "more than" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0037] Furthermore, unless otherwise defined, the technical and scientific terms used in this application have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and not for limiting the application. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0038] Example: Figure 1-11 As shown, an automatic screw sorting and feeding device includes a frame 1, a hopper 2, a conveyor belt 3, a sweeper 4, a pusher 5, and a discharge chute 6. The hopper 2 is mounted on the frame 1 and is used to hold screws. The conveyor belt 3 is located in the hopper 2 and moves back and forth vertically along the hopper 2. The top wall of the conveyor belt 3 has a slot 301 for holding the screw rod. By pulling the conveyor belt 3 vertically downward along the hopper 2, the screw falls into the slot 301 under its own weight. Then, the conveyor belt 3 rises, raising the screw in the slot 301 to the required height. The sweeper 4 is located on the hopper 2 and moves back and forth horizontally along the hopper 2. The pusher 5 and the discharge chute 6... The components are arranged opposite each other on the longitudinal sides of the hopper 2, and are located between the sweeping component 4 and the conveyor component 3 in the vertical direction of the hopper 2. When the conveyor component 3 rises to the preset height, the bottom of the sweeping component 4 contacts the top wall of the conveyor component 3. The sweeping component 4 moves laterally to sweep the screws in the reverse state on the conveyor component 3 back to the hopper 2. The sweeping component 4 moves back and forth laterally along the hopper 2. Since the screws in the slot 301 have a front and a back state, the sweeping component 4 sweeps the unstable reverse state screws back into the hopper 2, while the front state adjustment screws are kept in the slot 301. The pushing component 5 is used to push the screw heads in the front state on the conveyor component 3 to the unloading slide 6 for orderly unloading.

[0039] It should be noted that the screw includes a head and a shank. The shank has a threaded structure, and its outer diameter is smaller than that of the head, while its length is greater than that of the head. A screw in the "front" state refers to a screw whose shank is located in the slot 301, while a screw in the "back" state refers to a screw whose shank is not located in the slot 301. This ensures that when the shank is located in the slot 301, i.e., in the "front" state, the screw is stable and not easily falls off. However, in the "back" state, because the outer diameter of the head is large, the screw cannot be located in the slot 301. Therefore, screws whose shank is not inserted into the slot 301 are prone to falling off the conveyor belt 3.

[0040] By using the vertical movement of the conveyor belt 3 in conjunction with the lateral sweeping and removal structure of the sweeper 4, the high-frequency vibration of the traditional vibratory feeder is replaced, solving the noise problem caused by the continuous high-frequency collision between the screw and the hopper 2. This helps improve the comfort of the working environment, reduce noise pollution, and effectively control workshop noise. Secondly, the vertical gravity dropping design of the hopper 2 and the conveyor belt 3 eliminates the need for complex drive structures such as electromagnetic vibrators and spring plates, simplifying the device structure and reducing manufacturing costs. At the same time, the structural design of the slot 301 of the conveyor belt 3 allows it to match non-standard screws, such as the adjustment screws of the hidden rail, reducing compatibility difficulties. Furthermore, the structure of the hopper 2 is not limited to a circular design, saving the large installation space of a circular vibratory feeder and facilitating flexible deployment in high-density workshop environments.

[0041] Among them, a first cut is opened on one side wall of the hopper 2 corresponding to the pusher 5, and a second cut is opened on the other side wall of the hopper 2 corresponding to the discharge chute 6.

[0042] Regarding the specific structure for lifting the conveyor belt 3, this embodiment also includes a lifting cylinder 302. The bottom wall of the hopper 2 has a moving groove 201 for sliding assembly with the conveyor belt 3. Simultaneously, the frame has an assembly groove corresponding to the moving groove 201. The conveyor belt 3 slides between the moving groove 201 and the assembly groove. The lifting cylinder 302 is located below the hopper 2. The lifting cylinder 302 is assembled with the frame 1 and is used to push the conveyor belt 3 back and forth vertically along the hopper 2. Specifically, the fixed end of the lifting cylinder 302 is connected to the frame 1, and the pushing end of the lifting cylinder 302 is connected to the bottom of the conveyor belt 3. The lifting cylinder 302 drives the conveyor belt 3 to move linearly, thereby completing the conveyor belt operation. When the lifting cylinder 302 is in the retracted state, the material carrier 3 is located at the bottom of the hopper 2. Of course, in the extreme state, the top wall of the material carrier 3 can be made to be flush with the bottom wall of the hopper 2. This position needs to be adjusted according to the actual application debugging results to avoid screw jamming. At this time, the screws accumulated in the hopper 2 will cover the material carrier 3, so that the shank of some screws will slide into the slot 301. Then, the lifting cylinder 302 will be pushed out, driving the material carrier 3 to move vertically along the hopper 2. At this time, when the material carrier 3 rises, the screws in the slot 301 will be moved out of the screw pile in the hopper 2, thereby completing the pre-selection and pre-arrangement of screws, simplifying the pre-arrangement of screws and improving the feeding efficiency.

[0043] It should be noted that the gap between the inner wall of the moving groove 201 and the conveyor belt 3 is smaller than the size of the screw, which means that the screw will not fall out of the moving groove 201 or get stuck between the conveyor belt 3.

[0044] To improve the smoothness and stability of the vertical back-and-forth movement of the conveyor belt 3 along the hopper 2, this embodiment also includes a slider 303 and a slide rail 304. One side of the slider 303 is connected to the longitudinal side wall of the conveyor belt 3, and the other side of the slider 303 is slidably assembled with the slide rail 304. The slide rail 304 is connected to the frame 1. Furthermore, two sets of slide rails 304 and sliders 303 are provided, with the two sets of sliders 303 and slide rails 304 located on the longitudinal sides of the conveyor belt 3, which improves the smoothness and accuracy of the vertical movement of the conveyor belt 3, helps to ensure that the lifting and lowering action of the conveyor belt 3 is stable and reliable, and prevents the screws on the conveyor belt 3 from falling off during the movement of the conveyor belt 3, which helps to ensure that the orientation of the screws in the slot 301 does not shift.

[0045] To facilitate the upward movement of the conveyor belt 3 out of the screw pile in the hopper 2, the conveyor belt 3 is equipped with an inclined surface 3035 in its specific structural design. The inclined surface 3035 is gradually inclined from the top wall of the conveyor belt 3 toward the transverse side wall of the conveyor belt 3. By setting the inclined surface 3035 on the transverse side walls of the conveyor belt 3, the smoothness of the movement of the conveyor belt 3 is improved, the upward resistance of the conveyor belt 3 is reduced, and at the same time, the separation effect between the conveyor belt 3 and the screw pile is improved. The screws in the reverse state are in an unstable state, and some will slide down along the inclined surface 3035 back to the hopper 2, reducing the probability that the screws in the reverse state will be accidentally lifted to the screening height and interfere with the sweeping and pushing operations, which helps to ensure the accuracy of the conveyor belt 3 feeding.

[0046] Regarding the design of the tilt angle of the inclined surface 3035, the inclined surface 3035 is provided in two sets, and the two sets of inclined surface 3035 are provided with the transverse side walls of the strip 3. The included angle α between the inclined surface 3035 and the top wall of the strip 3 is 95°~100°, preferably 97°.

[0047] To enable the sweeping component 4 to move back and forth laterally along the hopper 2 and push the reverse-state screw on the conveyor belt 3 back into the hopper 2, this embodiment also includes a sweeping cylinder 401. The sweeping cylinder 401 is assembled with the frame 1 and is used to push the sweeping component 4 to move back and forth laterally along the hopper 2. Specifically, the fixed end of the sweeping cylinder 401 is connected to the frame 1, and the movable end of the sweeping cylinder 401 is connected to the sweeping component 4. The sweeping component 4 is a brush structure. In one embodiment, the sweeping component 4 is an aluminum alloy strip brush. The movable end of the sweeping cylinder 401 is connected to the aluminum alloy bracket of the aluminum alloy strip brush. The sweeping cylinder 401 pushes the sweeping component 4 to move linearly, and the brush is selected as the sweeping end of the sweeping component 4. Since the conveyor belt 3 is on the reverse side... The screw in the current state is unstable. Under the push of the sweeping component 4, it will slide down along the inclined surface 3035 of the material carrier 3 into the hopper 2. This solves the problem that the rigid scraper may scratch the screw surface or damage the slot 301 of the material carrier 3. It improves the gentleness and compatibility of the sweeping process, helps to protect the surface quality of the screw and extend the service life of the material carrier 3. Secondly, the flexible bristle structure of the brush solves the problem of adaptability to different head types, especially non-standard head type screws, which helps to enhance the equipment's versatility for various types of screws. Furthermore, by using a standardized strip brush with an aluminum alloy support, the problems of complex design, high processing cost and inconvenient replacement of non-standard sweeping components 4 are solved, reducing the maintenance cost under long-term operation.

[0048] It is worth mentioning that the hardness of the brush bristles is lower than that of the screw surface to avoid scratching the screw.

[0049] Regarding the specific structure of the pusher 5 pushing the screw, this embodiment also includes a pusher cylinder 501. The pusher 5 is assembled with the frame 1 and is used to push the pusher 5 to move back and forth along the longitudinal direction of the hopper 2. Specifically, the fixed end of the pusher cylinder 501 is connected to the frame 1, and the movable end of the pusher cylinder 501 is connected to the pusher 5. The pusher 5 is used to push the head of the screw on the conveyor belt 3. Before the pusher 5 pushes the screw, the sweeper 4 has swept away the screws that are not in the front position on the conveyor belt 3. Therefore, the pusher 5 moves towards the conveyor belt 3 and along the top wall of the slot 301, thereby pushing the screw on the conveyor belt 3. The unloading slide 6 is arranged opposite to the pusher 5. Therefore, the screw is pushed to the unloading slide 6 for unloading.

[0050] To better connect the conveyor belt 3 and the unloading slide 6, and to ensure that the screw in its front position can move from the conveyor belt 3 to the unloading slide 6 for unloading when the pusher 5 pushes the material, this embodiment also includes a guide 7. The guide 7 is located between the unloading slide 6 and the conveyor belt 3. The gap between the longitudinal sidewall of the conveyor belt 3 and the longitudinal sidewall of the guide 7 is smaller than that of the screw rod. The guide 7 has a guide groove 701 that matches the slot 301. The top wall of the guide 7 is provided with a guide part 702. The guide part 702 is gradually inclined from the top wall of the guide 7 towards the unloading slide 6. The inclination angle b of the guide surface is 5~10°, preferably 6°. When the conveyor belt 3 rises to a preset height, the guide... The top wall of the material component 7 is at the same height as the top wall of the conveyor component 3, or the top wall of the guide component 7 is slightly lower than the conveyor component 3 by 0.5~1mm. By setting the guide component 7 with the inclined guide part 702, the problems of jamming, deviation or posture flipping that may occur when the screw is transferred from the slot 301 of the conveyor component 3 to the material slide 6 are solved. This improves the smoothness and trajectory controllability of screw conveying, reduces the pushing resistance and failure rate, and helps to ensure the continuous and stable feeding process. Secondly, by setting the top wall of the guide component 7 and the top wall of the conveyor component 3 at the same height, the problem of the screw head hitting, bouncing or falling due to the height difference during the pushing process is solved, and the connection and smooth transition of the pushing path are improved.

[0051] To improve the smoothness of the screw sliding on the feeding slide 6, the feeding slide 6 is designed with an upward-facing arc shape. The top wall of the feeding slide 6 is provided with a groove 601 for placing the screw shank. Under the push of the pusher 5, the bolt moves from the conveyor 3 to the guide 7, and then slides down to the feeding slide 6. Under the action of gravity, the screw will slide along the arc-shaped feeding slide 6, thereby improving the smoothness and speed of the downward slide, reducing jamming, and improving the smoothness of the screw loading after sorting.

[0052] To ensure that the screw does not tip over and fall when it slides along the arc-shaped feed slide 6, a limiting groove 603 is provided on the inner side wall of the slide 601. The limiting groove 603 is used to limit the head of the screw. After the screw slides down from the guide part 702, the screw head slides into the limiting groove 603 and the screw shank slides into the guide groove 701, thereby ensuring the stability of the screw sliding in the feed slide 6.

[0053] Furthermore, in order to ensure that the screws can slide from the feeding slide 6 to the screw tightening station, this embodiment also includes a direct vibration feeder 602. The direct vibration feeder 602 is mounted on the frame 1 and is used to vibrate the feeding slide 6. The direct vibration feeder 602 provides a vibration source for the feeding slide 6. Combined with the arc-shaped structure of the feeding slide 6, it ensures that the screws can slide smoothly along the feeding slide 6, improving the smoothness of screw feeding after sorting.

[0054] It is worth mentioning that, in actual use, the direct vibration feeder 602 can be turned on or off depending on the actual sliding of the screws. If the screws can slide off smoothly, the vibration noise can be reduced by turning off the direct vibration feeder 602. Even if the direct vibration feeder 602 is turned on, since the screws to be vibrated by the direct vibration feeder 602 are only those on the feeding slide 6, the number is small. Compared with the traditional vibratory feeder, which needs to vibrate the entire hopper 2 and all the screws inside, the noise generated is greatly reduced due to the large mass, large inertia, and large power and amplitude required. Furthermore, the structural design in this embodiment can avoid the vibration of the feeding slide 6 from being transmitted to the hopper 2 and generating unnecessary noise by arranging the feeding slide 6 and the hopper 2 with a gap. Of course, the gap between the feeding slide 6 and the hopper 2 should be smaller than the shank of the screw.

[0055] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic screw sorting and feeding device, characterized in that: The system includes a frame, a hopper, a conveyor belt, a sweeping component, a pushing component, and a discharge chute. The hopper is mounted on the frame and is used to hold screws. The conveyor belt is located in the hopper and moves back and forth vertically along the hopper. The top wall of the conveyor belt has a slot for holding the shank of a screw. The sweeping component is located on the hopper and moves back and forth horizontally along the hopper. The pushing component and the discharge chute are positioned opposite each other on the longitudinal sides of the hopper and are both located vertically between the sweeping component and the conveyor belt. When the conveyor belt rises to a preset height, the sweeping component moves horizontally to sweep the screws on the conveyor belt that are in the reverse position back into the hopper. The pushing component pushes the screws on the conveyor belt that are in the forward position to move to the discharge chute.

2. The automatic screw sorting and feeding device according to claim 1, characterized in that: It also includes a lifting cylinder. The bottom wall of the hopper is provided with a moving groove for sliding assembly with the material. The lifting cylinder is located below the hopper and is assembled with the frame and is used to push the material to move back and forth vertically along the hopper.

3. The automatic screw sorting and feeding device according to claim 1, characterized in that: It also includes a slider and a slide rail. One side of the slider is connected to the longitudinal sidewall of the strip, and the other side of the slider is slidably assembled with the slide rail, which is connected to the frame.

4. The automatic screw sorting and feeding device according to claim 1, characterized in that: The strip component is provided with an inclined surface, which is gradually inclined from the top wall of the strip component toward the lateral side wall of the strip component.

5. The automatic screw sorting and feeding device according to claim 4, characterized in that: The inclined surface is provided in two sets, and the two sets of inclined surfaces are provided with the transverse side walls of the strip. The included angle α between the inclined surface and the top wall of the strip is 95°~100°.

6. The automatic screw sorting and feeding device according to claim 1, characterized in that: It also includes a sweeping cylinder, which is assembled with the frame and is used to push the sweeping component to move back and forth along the lateral side of the hopper. The sweeping component is a brush structure.

7. The automatic screw sorting and feeding device according to claim 1, characterized in that: It also includes a pusher cylinder, the pusher being assembled with the frame and used to push the pusher back and forth along the longitudinal direction of the hopper, the pusher being used to push the head of the screw on the material.

8. The automatic screw sorting and feeding device according to claim 1, characterized in that: It also includes a material guide, which is located between the material feeding chute and the material conveyor. The material guide has a guide groove that matches the slot. The top wall of the material guide is provided with a guide portion. The guide portion is gradually inclined from the top wall of the material guide toward the material feeding chute. When the material conveyor rises to a preset height, the top wall of the material guide and the top wall of the material conveyor are at the same height.

9. The automatic screw sorting and feeding device according to claim 1, characterized in that: The feeding slide is an arc shape with the opening facing upwards, and the top wall of the feeding slide is provided with a groove for placing the screw rod.

10. An automatic screw sorting and feeding device according to claim 1 or 9, characterized in that: It also includes a linear vibratory feeder, which is mounted on the frame and used to vibrate the discharge chute.

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