Feeding machine with adjustable feeding angle

Abstract

A feeding machine with adjustable feeding angle, comprising a machine body, a feeding part, a carrier and an adjusting assembly; the carrier is located above the machine body and is rotationally connected with the machine body, the feeding part is fixedly installed on the carrier for conveying materials; the adjusting assembly comprises a screw rod, a connecting rod and a position adjusting nut, the screw rod is slidingly connected with the machine body and can move in the vertical direction, the connecting rod is hingedly connected with the screw rod and the carrier at two ends respectively, and the position adjusting nut is threadedly connected with the screw rod and can abut against the top of the machine body; by screwing the position adjusting nut, the relative length between the screw rod and the machine body can be controlled to drive the carrier to rotate through the connecting rod; therefore, compared with the prior art, the carrier is driven to rotate by setting the adjusting assembly composed of the screw rod, the connecting rod and the position adjusting nut on the machine body, and then the feeding angle of the feeding part is accurately adjusted, so that the feeding machine can be applied to complex application scenarios, and the materials can be smoothly and accurately conveyed to the required position to meet the use requirements and improve the use experience.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment technology, and in particular relates to a feeder with an adjustable feeding angle. Background Technology

[0002] A feeder is a device that uses mechanical force to drive the movement of materials, thereby completing the handling and conveying of materials. It can replace manual labor in transferring materials from one place to another, effectively saving labor and improving work efficiency. It is an indispensable piece of equipment in light industry and heavy industry.

[0003] Currently, although there are various types and models of feeders on the market, most of them have the defect of fixed feeding angle. This makes it difficult for them to adapt to various complex application scenarios and to accurately deliver the goods to a certain spatial area to meet the needs. Therefore, it is necessary to design a feeder with adjustable feeding angle to solve this problem. Utility Model Content

[0004] (a) Technical problems to be solved This invention provides a feeder with an adjustable feeding angle, which can be adjusted to suit complex application scenarios and accurately deliver materials to the required position.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: An adjustable feeding angle feeder includes a machine body, a feeding section, a carrier frame, and an adjustment assembly. The carrier frame is located above the machine body and rotatably connected to the machine body. The feeding section is fixedly installed on the carrier frame for conveying materials. The adjustment assembly includes a screw, a connecting rod, and an adjusting nut. The screw is slidably connected to the machine body and can move vertically. The connecting rod is hinged to the screw and the carrier frame at both ends. The adjusting nut is threadedly connected to the screw and can abut against the top of the machine body. Tightening the adjusting nut controls the relative length between the screw and the machine body, thereby driving the carrier frame to rotate via the connecting rod, and thus adjusting the feeding angle of the feeding section.

[0006] Preferably, a base with a sleeve is fixedly installed on the top of the machine body, the screw is vertically and slidably passed through the sleeve and the base into the interior of the machine body, and the adjusting nut can abut against the sleeve.

[0007] Preferably, the adjustment assembly further includes a limiting nut, which is located inside the machine body and threadedly connected to the screw, and the limiting nut can abut against the bottom side of the base.

[0008] Preferably, the adjustment assembly further includes an elastic element located inside the machine body and fitted with the screw, with both ends of the elastic element abutting against the base and the limiting nut, respectively.

[0009] Preferably, the elastic element is a spring.

[0010] Preferably, it also includes an anti-collision component, which includes a support rod and a rubber roller; the screw and the connecting rod are hinged by a fastening bolt, the support rod is horizontally set and coaxially fixed to the fastening bolt, and the rubber roller is installed on the support rod. When the carrier rotates to the minimum angle, the rubber roller contacts the bottom surface of the carrier before the screw and the connecting rod.

[0011] Preferably, the rubber roller is coaxially and rotatably fitted onto the support rod.

[0012] Preferably, the adjustment assembly is provided in two sets and symmetrically arranged on both sides of the machine body, and the two ends of the support rod are respectively coaxially fixed to the fastening bolts of the two sets of adjustment assemblies, and the rubber roller is located between the two sets of adjustment assemblies.

[0013] Preferably, the carrier is symmetrically equipped with connecting blocks with shafts on both sides, and both shafts are inserted into the body and rotatably connected to the body. The shafts are also provided with protrusions that penetrate the body to the outside and have angular scales. The outside of the body is provided with indicators corresponding to the angular scales. The protrusions can rotate synchronously with the shafts so that the values ​​on the angular scales are aligned with the indicators one by one.

[0014] Preferably, a rotating rod is also fixedly installed on the machine body, and the two shafts are coaxial and rotatably fitted with the rotating rod.

[0015] Preferably, the bottom of the machine body is equipped with telescopic support feet that contact the ground, and the telescopic support feet can adjust their height.

[0016] Preferably, the feeding unit includes a placement plate, a guide rail, and a lead screw motor; the placement plate is used to place the material, and the placement plate is provided with a linkage block and a guide block; the guide rail is horizontally installed on the carrier and extends along the moving direction of the material, and the guide block is slidably connected to the guide rail; the lead screw motor is installed on the carrier, and the lead screw shaft of the lead screw motor is threadedly connected to the linkage block to drive the placement plate to slide along the length direction of the guide rail.

[0017] Preferably, the system further includes a detection component. The carrier has a groove extending along the length of the guide rail. The detection component includes a first stroke detection switch, a second stroke detection switch, and a U-shaped inspection piece. The first stroke detection switch and the second stroke detection switch are respectively installed at both ends of the groove of the carrier, corresponding to the initial and final positions of the shelf. Both the first stroke detection switch and the second stroke detection switch are signal-connected to the lead screw motor. The U-shaped inspection piece is installed on the linkage block and can move through the groove to the bottom surface of the carrier. The U-shaped inspection piece can align with the first stroke detection switch and the second stroke detection switch one by one as the linkage block moves.

[0018] Preferably, it also includes an electrical control box, which is mounted on the machine body and electrically connected to the lead screw motor, the first stroke detection switch and the second stroke detection switch.

[0019] (III) Beneficial Effects This utility model provides a feeder with an adjustable feeding angle. By setting an adjustment component consisting of a screw, connecting rod and adjusting nut on the machine body to drive the carrier frame to rotate, the feeding angle of the feeding part can be precisely adjusted. This makes the feeder suitable for complex application scenarios and can smoothly and accurately transport materials to the required position to meet the usage requirements, thus improving the user experience. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram of the overall structure of this utility model is shown. Figure 1 ; Figure 2 It shows Figure 1 The left view; Figure 3 It shows Figure 2 AA section view; Figure 4 It shows Figure 2 BB cross-sectional view; Figure 5 A schematic diagram of the overall structure of this utility model is shown. Figure 2 ; Figure 6 An exploded view of the overall structure of this utility model is shown; Figure 7 A schematic diagram of the structure of the body in this utility model is shown; Figure 8 This invention shows a schematic diagram of the structure of the carrier and the feeding section. Figure 9 It shows Figure 8 A schematic diagram of the decomposition process; Figure 10 A schematic diagram of the adjustment component and the anti-collision component in this utility model is shown.

[0021] In the diagram: 1. Machine body, 11. Base, 110. Sleeve, 12. Rotating rod, 13. Telescopic support foot, 1d. Indicator, 2. Feeding section, 21. Shelf, 211. Linkage block, 212. Guide block, 22. Guide rail, 23. Screw motor, 230. Screw shaft, 3. Carrier frame, 31. Connecting block, 32. Shaft column, 320. Protrusion, 32d. Angle scale, 33. Slide groove, 4. Adjustment assembly, 40. Fastening bolt, 41. Screw, 42. Connecting rod, 43. Adjustment nut, 44. Limit nut, 45. Elastic element, 5. Anti-collision assembly, 51. Support rod, 52. Rubber roller, 6. Detection assembly, 61. First stroke detection switch, 62. Second stroke detection switch, 63. U-shaped inspection piece, 7. Electrical control box. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0023] See appendix Figure 1 - Appendix Figure 5 An adjustable feeding angle feeder includes a body 1, a feeding section 2, a carrier frame 3, and an adjustment assembly 4. The carrier frame 3 is located above the body 1 and is rotatably connected to the body 1. The feeding section 2 is fixedly installed on the carrier frame 3 for conveying materials. The adjustment assembly 4 includes a screw 41, a connecting rod 42, and an adjusting nut 43. The screw 41 is slidably connected to the body 1 and can move in the vertical direction. The connecting rod 42 is hinged to the screw 41 and the carrier frame 3 at both ends, respectively. The adjusting nut 43 is threadedly connected to the screw 41 and can abut against the top of the body 1. Tightening the adjusting nut 43 can control the relative length between the screw 41 and the body 1, so as to drive the carrier frame 3 to rotate through the connecting rod 42, thereby adjusting the feeding angle of the feeding section 2.

[0024] Specifically, before use, the machine body 1 is moved to the goods stacking area and placed stably. The adjusting nut 43 is turned to drive the screw 41 to rotate, thereby controlling the relative length between the screw 41 and the machine body 1. The telescopic screw 41 drives the carrier 3 to rotate through the connecting rod 42, thereby adjusting the feeding angle of the feeding section 2. After the feeding section 2 corresponds to the loading station and the unloading station respectively, the adjusting nut 43 is released. Under the gravity of the feeding section 2, the carrier 3 and the screw 41, the adjusting nut 43 is pressed against the top of the machine body 1, and the preparation work is completed. When in use, the material enters the feeding section 2 from the loading station. The feeding section 2 is started to move the material to the unloading station, where the material can be taken out. In the above usage scenario, the loading station and the unloading station can be staggered in height, and the feeding section 2 with the tilt angle can stably transfer the material located above to the bottom.

[0025] In summary, this utility model drives the carrier frame 3 to rotate by setting an adjustment component 4 consisting of a screw 41, a connecting rod 42 and an adjusting nut 43 on the machine body 1, thereby accurately adjusting the feeding angle of the feeding part 2. This allows the feeder to be applicable to complex application scenarios and can smoothly and accurately transport materials to the required position to meet usage needs, thus improving the user experience.

[0026] See appendix Figure 1 - Appendix Figure 6 The top of the machine body 1 is fixedly installed with a base 11 having a sleeve 110. The screw 41 is vertically and slidably passed through the sleeve 110 and the base 11 into the machine body 1. The adjusting nut 43 can abut against the sleeve 110. The design of the sleeve 110 can restrict the screw 41 and improve the sliding stability of the screw 41. On the other hand, it can support the adjusting nut 43 so that the adjusting nut 43 is suspended above the top of the machine body 1, which makes it convenient for the operator to tighten the adjusting nut 43 and improves the convenience of operation. In addition, it is also convenient for the operator to directly replace the sleeve 110 after it is damaged, reducing the maintenance cost of the machine body 1.

[0027] See appendix Figure 1 - Appendix Figure 5 and attached Figure 10 Considering that after the carrier 3 rotates at a large angle, the feeding part 2 will drive the screw 41 to move upward during operation, causing the adjusting nut 43 to move away from the sleeve 110, thus posing a risk that the screw 41 may fall off the machine body 1. To solve this problem, in this utility model, the adjusting component 4 also includes a limiting nut 44. The limiting nut 44 is located inside the machine body 1 and is threadedly connected to the screw 41, and the limiting nut 44 can abut against the bottom side of the base 11.

[0028] Specifically, after adjusting the extension length of the screw 41 by turning the adjusting nut 43 and after the adjusting nut 43 abuts against the sleeve 110, continue to turn the limiting nut 44 located inside the machine body 1 to abut against the bottom side of the base 11, thereby stably fixing the screw 41 on the sleeve 110 and the base 11. This structural design can lock the screw 41, prevent the carrier 3 from rotating during the operation of the feeding section 2 and causing the material to fall out, improve the structural stability, and ensure the smooth operation of the feeding work.

[0029] See appendix Figure 1 - Appendix Figure 5 and attached Figure 10 Considering that the feeding part 2 will generate a certain vibration during operation, if the screw 41 is directly locked, it is easy to cause the adjusting nut 43 and the limiting nut 44 to loosen, or even cause damage to the sleeve 110 and the base 11. To solve this problem, in this utility model, the adjusting component 4 also includes an elastic element 45. The elastic element 45 is located inside the machine body 1 and is fitted with the screw 41. The two ends of the elastic element 45 abut against the base 11 and the limiting nut 44 respectively.

[0030] Specifically, the vibration generated by the feeding section 2 during operation is transmitted to the connecting rod 42 and the screw 41 through the carrier 3. After being subjected to force, the screw 41 tends to move up and down. At this time, the elastic element 45 will adapt to deformation to store energy and recover potential energy, so as to effectively buffer the force and reduce the vibration of the screw 41, thereby reducing the risk of loosening of the adjusting nut 43 and the limiting nut 44 and extending the service life of related components. In addition, the design of the elastic element 45 can also reduce the vibration frequency of the carrier 3 and ensure the working stability of the feeding section 2.

[0031] Furthermore, the elastic element 45 can be a spring, a rubber sleeve, a plastic block with elasticity and recovery ability, etc. Due to the variety of its types, this utility model does not impose any restrictions on it.

[0032] See appendix Figure 1 - Appendix Figure 5 and attached Figure 10 Considering that the screw 41 and connecting rod 42 are prone to rigid collision and damage with the carrier 3 during the process of adjusting the carrier 3 to the minimum tilt angle, this utility model also includes an anti-collision component 5 to solve this problem. The anti-collision component 5 includes a support rod 51 and a rubber roller 52. The screw 41 and connecting rod 42 are hinged by a fastening bolt 40. The support rod 51 is horizontally set and coaxially fixed to the fastening bolt 40. The rubber roller 52 is installed on the support rod 51. When the carrier 3 is rotated to the minimum angle, the rubber roller 52 contacts the bottom surface of the carrier 3 before the screw 41 and connecting rod 42. This design can effectively buffer the impact generated when the screw 41 and connecting rod 42 contact the carrier 3, avoid rigid collision and damage, and further extend the service life of the relevant components.

[0033] See appendix Figure 3and attached Figure 10 The rubber roller 52 is coaxially and rotatably sleeved on the support rod 51; when the rubber roller 52 contacts the bottom surface of the carrier 3, it will rotate to eliminate the force generated by the collision. This design can further protect the carrier 3, the connecting rod 42 and the screw 41.

[0034] See appendix Figure 1 - Appendix Figure 5 and attached Figure 10 The adjustment components 4 are provided in two sets and symmetrically arranged on both sides of the machine body 1. The two ends of the support rod 51 are respectively coaxially fixed to the fastening bolts 40 of the two sets of adjustment components 4, and the rubber roller 52 is located between the two sets of adjustment components 4.

[0035] Specifically, the design of the two sets of adjustment components 4 can simultaneously support the carrier frame 3 to improve the support capacity; the two ends of the support rod 51 are coaxially fixed to the fastening bolts 40 of the two sets of adjustment components 4, so that the two screws 41 and the two connecting rods 42 of the two sets of adjustment components 4 are interconnected to further improve the structural stability; and the rubber roller 52 is located between the two sets of adjustment components 4, so that the pressure it receives when contacting the carrier frame 3 can be evenly distributed to the two sets of adjustment components 4, thereby reducing the pressure on the relevant components and extending their service life.

[0036] See appendix Figure 4 - Appendix Figure 7 The frame 3 is symmetrically equipped with connecting blocks 31 with shafts 32 on both sides. Both shafts 32 are inserted into the body 1 and rotatably connected to the body 1. The shafts 32 are also provided with protrusions 320 that penetrate the body 1 to the outside and have angle scales 32d. The outside of the body 1 is provided with an indicator 1d corresponding to the angle scales 32d. The protrusions 320 can rotate synchronously with the shafts 32.

[0037] Specifically, during the process of adjusting the rotation angle of the carrier frame 3 by tightening the adjusting nut 43 to control the extension and retraction length of the screw 41, the protrusion 320 rotates synchronously with the shaft column 32, so that the value on the angle scale 32d is aligned with the indicator 1d one by one. When the carrier frame 3 rotates to the appropriate position, the staff can observe the value of the angle scale 32d corresponding to the indicator 1d to know the specific rotation angle of the carrier frame 3 and determine it as the correction value.

[0038] During use, if the indicator 1d is misaligned with the corresponding angle scale 32d value, causing a change in the calibration value, the staff will intuitively and clearly know that the carrier 3 has shifted to a certain extent, making it convenient for the staff to tighten the adjustment nut 43 in time for adjustment.

[0039] On the other hand, if the angle of the carrier 3 needs to be readjusted after use, the user can quickly turn the adjusting nut 43 to drive the carrier 3 to rotate to the appropriate angle according to the calibration value. This solves the problem of repeated calibration by the staff, greatly reduces the staff's operation time, and improves the convenience of use.

[0040] See appendix Figure 4 - Appendix Figure 7 A rotating rod 12 is also fixedly installed on the body 1. The two shaft columns 32 are coaxial and rotatably fitted with the rotating rod 12. The design of the rotating rod 12 can improve the support force of the body 1 on the two shaft columns 32 and the carrier frame 3, so as to ensure the load-bearing capacity and rotational stability of the carrier frame 3.

[0041] See appendix Figure 1 - Appendix Figure 4 The bottom of the body 1 is equipped with telescopic support feet 13 that are in contact with the ground. The telescopic support feet 13 can adjust their height.

[0042] Specifically, after the machine body 1 is moved to a suitable position, the height of the multiple telescopic support feet 13 at the bottom of the machine body 1 is adjusted to be consistent, so that the entire machine can be placed stably and the height meets the operation requirements. Among them, the telescopic support feet 13 are existing products and are widely used in cabinets, brackets and other products, so their specific structure will not be described in detail in this utility model.

[0043] See appendix Figure 3 - Appendix Figure 9 The feeding section 2 includes a placement plate 21, a guide rail 22, and a lead screw motor 23. The placement plate 21 is used to place materials, and a linkage block 211 and a guide block 212 are provided on the placement plate 21. The guide rail 22 is horizontally installed on the carrier 3 and extends along the direction of material movement. The guide block 212 is slidably connected to the guide rail 22. The lead screw motor 23 is installed on the carrier 3, and the lead screw shaft 230 of the lead screw motor 23 is threadedly connected to the linkage block 211.

[0044] Specifically, under normal circumstances, the shelf 21 is aligned with the loading station for placing materials. When the lead screw shaft 230 of the control screw motor 23 rotates forward, it drives the linkage block 211 to move downward along the length of the guide rail 22, thereby transferring the materials on the shelf 21 to the unloading station. After the shelf 21 is aligned with the unloading station, the control screw motor 23 stops to remove the materials from the shelf 21. After the materials are removed, the control screw shaft 230 of the control screw motor 23 rotates in reverse, which drives the linkage block 211 to move upward along the length of the guide rail 22, thereby causing the empty shelf 21 to return to the loading station for placing new materials.

[0045] It should be noted that, in addition to the above structure, the feeding unit 2 can adopt a traditional belt conveyor, chain conveyor or roller conveyor, etc. Since they are diverse and relatively common in the mechanical field, this utility model does not impose any restrictions on them.

[0046] See appendix Figure 1 - Appendix Figure 5 and attached Figure 8 - Appendix Figure 9The present invention also includes a detection component 6. A slide groove 33 extending along the length of the guide rail 22 is provided on the carrier 3. The detection component 6 includes a first stroke detection switch 61, a second stroke detection switch 62, and a U-shaped test piece 63. The first stroke detection switch 61 and the second stroke detection switch 62 are respectively installed at both ends of the slide groove 33 of the carrier 3, corresponding to the initial position and the end position of the placement plate 21. The first stroke detection switch 61 and the second stroke detection switch 62 are both connected to the lead screw motor 23. The U-shaped test piece 63 is installed on the linkage block 211 and can move through the slide groove 33 to the bottom surface of the carrier 3. The U-shaped test piece 63 can be aligned with the first stroke detection switch 61 and the second stroke detection switch 62 one by one as the linkage block 211 moves.

[0047] Specifically, when the shelf 21 is in its initial position, it aligns with the loading station for placing materials. At this time, the first stroke detection switch 61 detects the U-shaped inspection piece 63 and sends a forward rotation command to the lead screw motor 23, driving the linkage block 211 to move downward along the length of the guide rail 22, thereby transferring the materials on the shelf 21 to the unloading station. The U-shaped inspection piece 63 then moves along the slide 33 with the linkage block 211 and approaches the second stroke detection switch 62. After the shelf 21 is transferred to the end position and aligned with the unloading station, the materials can be removed, and at this time, the second stroke... The detection switch 62 detects the U-shaped inspection piece 63 and sends a reverse command to the lead screw motor 23, which drives the linkage block 211 to move along the length of the guide rail 22, thereby causing the empty shelf 21 to move to the loading station. The U-shaped inspection piece 63 moves along the slide 33 with the linkage block 211 and approaches the first stroke detection switch 61 until the shelf 21 is aligned with the loading station again, at which point new materials can be placed. The first stroke detection switch 61 then detects the U-shaped inspection piece 63 again.

[0048] Therefore, the combined use of the U-shaped inspection piece 63, the first stroke detection switch 61, the second stroke detection switch 62, and the lead screw motor 23 can control the running time of the lead screw motor 23 to drive the placement plate 21 to reciprocate, thereby realizing the continuous conveying of materials. When the first stroke detection switch 61 or the second stroke detection switch 62 detects different parts of the U-shaped inspection piece 63, the lead screw motor 23 will pause for a period of time to facilitate placing materials on the placement plate 21 or removing materials from the placement plate 21.

[0049] It should be noted that the technology of controlling the operation of the lead screw motor 23 through the detection component 6 is relatively conventional and common in the mechanical field. Therefore, its specific working principle will not be described in detail in this utility model. On the other hand, there are various types of first stroke detection switches 61 and second stroke detection switches 62. This utility model does not limit them. For ease of understanding, in this embodiment, infrared sensors are preferred for the first stroke detection switches 61 and second stroke detection switches 62. When the infrared sensor detects the passage of the U-shaped test piece 63, it can send a corresponding control command to the lead screw motor 23.

[0050] See appendix Figure 1 - Appendix Figure 5 The present invention also includes an electrical control box 7, which is installed on the machine body 1 and electrically connected to the lead screw motor 23, the first stroke detection switch 61, and the second stroke detection switch 62.

[0051] Specifically, the electrical control box 7 can be used to supply power to the lead screw motor 23, the first stroke detection switch 61, and the second stroke detection switch 62. The electrical control box 7 can also receive the feedback signals from the first stroke detection switch 61 and the second stroke detection switch, and send the corresponding signals to the lead screw motor 23 to control the operation of the lead screw motor 23.

[0052] It should be noted that the technology of supplying power to the lead screw motor 23, the first stroke detection switch 61 and the second stroke detection switch 62 through the electrical control box 7, and completing the signal transmission between the three, is relatively conventional in the mechanical field and belongs to the prior art. Therefore, the specific circuit structure is not described in detail in this utility model.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feeder with an adjustable feeding angle, comprising a machine body and a feeding section; characterized in that, Also includes: A carrier frame is located above the machine body and rotatably connected to the machine body, and the feeding part is fixedly installed on the carrier frame for conveying materials; The adjustment assembly includes a screw, a connecting rod, and an adjusting nut. The screw is slidably connected to the machine body and can move vertically. The connecting rod is hinged to the screw and the carrier frame at both ends. The adjusting nut is threadedly connected to the screw and can abut against the top of the machine body. Tightening the adjusting nut can control the relative length between the screw and the machine body, so as to drive the carrier frame to rotate through the connecting rod, thereby adjusting the feeding angle of the feeding section.

2. The feeder with adjustable feeding angle according to claim 1, characterized in that, A base with a sleeve is fixedly installed on the top of the machine body. The screw is vertical and slidably passes through the sleeve and the base into the machine body. The adjusting nut can abut against the sleeve.

3. The feeder with adjustable feeding angle according to claim 2, characterized in that, The adjustment assembly also includes a limiting nut, which is located inside the machine body and threadedly connected to the screw, and the limiting nut can abut against the bottom side of the base.

4. A feeder with adjustable feeding angle according to claim 3, characterized in that, The adjustment assembly also includes an elastic element, which is located inside the body and fitted with the screw, with both ends of the elastic element abutting against the base and the limiting nut, respectively.

5. A feeder with adjustable feeding angle according to claim 1, characterized in that, It also includes a collision avoidance assembly, which includes a support rod and a rubber roller; the screw and the connecting rod are hinged by a fastening bolt, the support rod is horizontally set and coaxially fixed to the fastening bolt, and the rubber roller is installed on the support rod. When the carrier rotates to the minimum angle, the rubber roller contacts the bottom surface of the carrier before the screw and the connecting rod.

6. A feeder with adjustable feeding angle according to claim 5, characterized in that, The rubber roller is coaxially and rotatably fitted onto the support rod.

7. A feeder with adjustable feeding angle according to any one of claims 5 or 6, characterized in that, The adjustment components are provided in two sets and symmetrically arranged on both sides of the machine body. The two ends of the support rod are respectively coaxially fixed to the fastening bolts of the two sets of adjustment components, and the rubber roller is located between the two sets of adjustment components.

8. A feeder with adjustable feeding angle according to claim 1, characterized in that, The carrier is symmetrically equipped with connecting blocks with shafts on both sides. Both shafts are inserted into the body and rotatably connected to the body. The shafts are also provided with protrusions that penetrate the body to the outside and have angular scales. The outside of the body is provided with indicators corresponding to the angular scales. The protrusions can rotate synchronously with the shafts so that the values ​​on the angular scales are aligned with the indicators one by one.

9. A feeder with adjustable feeding angle according to claim 1, characterized in that, The feeding unit includes a placement plate, a guide rail, and a lead screw motor; the placement plate is used to place the material, and the placement plate is provided with a linkage block and a guide block; the guide rail is horizontally installed on the carrier and extends along the moving direction of the material, and the guide block is slidably connected to the guide rail; the lead screw motor is installed on the carrier, and the lead screw shaft of the lead screw motor is threadedly connected to the linkage block to drive the placement plate to slide along the length direction of the guide rail.

10. A feeder with adjustable feeding angle according to claim 9, characterized in that, It also includes a detection component. The carrier has a groove extending along the length of the guide rail. The detection component includes a first stroke detection switch, a second stroke detection switch, and a U-shaped inspection piece. The first stroke detection switch and the second stroke detection switch are respectively installed at both ends of the groove of the carrier, corresponding to the initial and final positions of the shelf. Both the first stroke detection switch and the second stroke detection switch are connected to the lead screw motor. The U-shaped inspection piece is installed on the linkage block and can move through the groove to the bottom surface of the carrier. The U-shaped inspection piece can align with the first stroke detection switch and the second stroke detection switch one by one as the linkage block moves.

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