Centering mechanism of bar feeder

By introducing a combination of a motor-driven bidirectional screw and guide rod into the bar feeder, automatic centering clamping is achieved, solving the problem of feeder position deviation, improving efficiency and accuracy, and enhancing the versatility and stability of the equipment.

CN223878916UActive Publication Date: 2026-02-06DALIAN TONGREN METAL TECH CO LTD
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Patent Information

Application Number
CN202520627346.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-06
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

The existing bar feeder lacks a centering function, which causes the delivered bars to land at a deviated position, requiring manual observation, resulting in low efficiency and low accuracy.

Method used

A centering mechanism for a bar feeder was designed. It uses a motor-driven bidirectional screw and achieves automatic centering clamping through a combination of upper and lower centering clamping components and guide rods, adapting to bars of different diameters and lengths.

Benefits of technology

It improves the efficiency and accuracy of bar feeding, enhances the versatility and flexibility of the equipment, and ensures the stability and accuracy of clamping.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of bar feeding, and discloses a centering mechanism of a bar feeder, which comprises a bottom plate, a first stand column is vertically and fixedly connected to the middle of the top of the bottom plate, a second stand column and a third stand column are sequentially arranged on the front side and the rear side of the first stand column, and the second stand column and the third stand column are vertically fixed to the top of the bottom plate. The top ends of the first stand columns and the top ends of the two third stand columns are fixedly connected with supporting plates, the supporting plates are in a V shape with the left end and the right end upwarping, the upper middle portions of the left side walls and the right side walls of the two second stand columns are fixedly connected with first fixing plates, the tops of the first fixing plates are fixedly connected with guide rods, and the guide rods vertically extend. Second fixing plates are fixedly connected to the upper middle portions of the left side wall and the right side wall of the first stand column, and the outer ends of the second fixing plates extend below the middle of the top plate. The two-way screw is driven by the motor to rotate, automatic vertical movement and centering clamping of the upper centering clamping assembly and the lower centering clamping assembly are achieved, and work efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bar feeding, in particular to a centering mechanism of bar feeding machine. BACKGROUND

[0002] With the rapid development of manufacturing industry, as important raw materials, bars are widely used in mechanical processing, automobile manufacturing, aerospace and other fields. In the processing of bars, feeding machines are needed to feed bars into processing equipment.

[0003] In order to avoid deviation of the falling point position of the bar fed by the feeding machine, the feeding machine needs to be centered with the bar processing equipment. However, the current feeding machine does not have the centering function and needs manual observation, which is low in efficiency and precision. SUMMARY

[0004] In order to overcome the above-mentioned deficiencies, the utility model provides a centering mechanism of bar feeding machine.

[0005] The utility model takes the technical scheme of:

[0006] A centering mechanism of bar feeding machine, comprising a bottom plate, a vertical fixed connection stand one is arranged in the middle of the top of the bottom plate, a vertical fixed connection stand two and a vertical fixed connection stand three are sequentially arranged on the front and back sides of the stand one, the stand two and the stand three are vertically fixed on the top of the bottom plate, the top end of the stand one and the two vertical fixed connection stand three are fixedly connected with a support plate, the support plate is in the shape of an angle iron, the support plate is upwardly curved at the left and right ends, the middle of the left and right side walls of the two vertical fixed connection stand two is fixedly connected with a fixed plate one at an upper position, the top of the fixed plate one is fixedly connected with a guide rod, the guide rod extends vertically, the top end of the two guide rods on the same side is fixedly connected with a top plate, the top plate is in the shape of an arc, the two top plates are symmetrical, the middle of the left and right side walls of the stand one is fixedly connected with a fixed plate two at an upper position, the fixed plate two is below the middle of the top plate, the top of the fixed plate two is provided with a bidirectional screw rod, the bottom end of the bidirectional screw rod is rotationally connected with the fixed plate two, the top end of the bidirectional screw rod is rotationally connected with the middle of the top plate, the top end of the bidirectional screw rod penetrates out of the top of the top plate, the bottom end of the bidirectional screw rod penetrates out of the bottom of the fixed plate two, a motor is fixedly installed at the bottom right end of the right fixed plate two, the output shaft top end of the motor is fixedly connected with the bottom end of the bidirectional screw rod on the right side, the top end of the two bidirectional screw rods is fixedly connected with the bottom of a bevel gear one, the middle of the opposite side walls of the two top plates is fixedly connected with a mounting plate, the opposite ends of the two mounting plates extend upwardly, a rotating shaft is rotationally connected between the opposite ends of the two mounting plates, the two ends of the rotating shaft respectively penetrate through the two mounting plates, the left and right ends of the rotating shaft are fixedly sleeved with a bevel gear two. The two bevel gears two are engaged with the two bevel gears one, the outer walls of the four guide rods are slidably sleeved with an upper centering clamping assembly and a lower centering clamping assembly, the upper centering clamping assembly is located above the lower centering clamping assembly, the upper centering clamping assembly and the lower centering clamping assembly are the same in structure and symmetrical in up and down, the upper centering clamping assembly and the lower centering clamping assembly are threadedly connected with the two bidirectional screw rods.

[0007] Several mounting slots are provided on both sides of the top of the support plate. The mounting slots are arranged in a rectangular array, and rollers are rotatably connected between the left and right inner walls of the mounting slots.

[0008] The upper centering clamping assembly includes a connecting plate, with two connecting plates symmetrically distributed left and right. Two clamping plates are fixedly connected between the front and rear ends of the two connecting plates. The clamping plates are distributed front and back and are in the shape of angle iron. The included angle of the two sides of the clamping plates faces upward. Sliding holes are opened at the front and rear ends of the top of the connecting plates. The connecting plates are slidably sleeved on the guide rod through the sliding holes. A protruding plate is fixedly connected to the middle of the opposite sidewalls of the two connecting plates. A threaded hole is opened at the middle of the top of the protruding plate. The upper and lower protruding plates are respectively threadedly sleeved on the threaded part of the bidirectional screw through the threaded holes.

[0009] The beneficial effects of this utility model are:

[0010] This invention achieves automatic up-and-down movement and centering clamping of the upper and lower centering clamping components by driving the bidirectional screw with a motor, thereby improving work efficiency. The combined use of the bidirectional screw and the guide rod ensures the stability and accuracy of the clamping components during movement.

[0011] The upper and lower clamping plates provide centering and clamping, while the rollers assist in the process, enabling the centering mechanism to adapt to bars of different diameters and lengths. This improves the versatility and flexibility of the equipment and enhances the stability of the clamping. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a partial structural schematic diagram of the present invention;

[0014] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0015] Figure 4 yes Figure 2 Enlarged view at point B in the middle;

[0016] Figure 5 This is a schematic diagram of the upper centering clamping assembly.

[0017] The reference numerals in all the attached drawings are as follows: 1. Base plate; 2. Column 1; 3. Column 2; 4. Column 3; 5. Support plate; 6. Mounting groove; 7. Roller; 8. Fixing plate 1; 9. Guide rod; 10. Top plate; 11. Fixing plate 2; 12. Bidirectional screw; 13. Motor; 14. Bevel gear 1; 15. Mounting plate; 16. Rotating shaft; 17. Bevel gear 2; 18. Upper centering clamping assembly; 19. Lower centering clamping assembly; 20. Connecting plate; 21. Clamping plate; 22. Sliding hole; 23. Protruding plate; 24. Threaded hole. Detailed Implementation

[0018] like Figures 1-5 The following describes a centering mechanism for a bar feeder, comprising a base plate 1. A column 2 is vertically fixed to the top center of the base plate 1. Columns 3 and 4 are sequentially arranged on the front and rear sides of column 2, and are vertically fixed to the top of the base plate 1. Support plates 5, which are angle iron in shape and curve upwards at their left and right ends, are fixed to the upper middle positions of the left and right side walls of columns 3. Guide rods 9, which extend vertically, are fixed to the top of the two guide rods 9 on the same side. A top plate 10, which is arc-shaped and symmetrical, is fixed to the upper middle positions of the left and right side walls of columns 3. A second fixing plate 11 is fixed to the upper middle positions of the left and right side walls of columns 2, located below the center of the top plate 10. The top has a bidirectional screw 12. The bottom end of the bidirectional screw 12 is rotatably connected to the second fixing plate 11, and the top end of the bidirectional screw 12 is rotatably connected to the middle of the top plate 10. The top end of the bidirectional screw 12 passes through the top of the top plate 10, and the bottom end of the bidirectional screw 12 passes through the bottom of the second fixing plate 11. The right end of the bottom of the second fixing plate 11 is fixedly mounted with a motor 13. The top end of the output shaft of the motor 13 is fixedly connected to the bottom end of the right bidirectional screw 12. The top ends of both bidirectional screws 12 are fixedly connected to the bottom of the first bevel gear 14. The middle of the opposite sidewalls of the two top plates 10 are fixedly connected with mounting plates 15. The opposite ends of the two mounting plates 15 extend upward. The opposite ends of the two mounting plates 15 are rotatably connected with a rotating shaft 16. The two ends of the rotating shaft 16 pass through the two mounting plates 15 respectively. The left and right ends of the rotating shaft 16 are fixedly sleeved with the second bevel gear 17. Two bevel gears 17 mesh with two bevel gears 14 respectively. The upper centering clamping assembly 18 and the lower centering clamping assembly 19 are slidably sleeved between the outer walls of the four guide rods 9. The upper centering clamping assembly 18 is located above the lower centering clamping assembly 19. The upper centering clamping assembly 18 and the lower centering clamping assembly 19 have the same structure and are symmetrical. Both the upper centering clamping assembly 18 and the lower centering clamping assembly 19 are threadedly connected to two bidirectional screws 12.

[0019] The top of the support plate 5 is provided with a plurality of installation grooves 6, which are arranged in a rectangular array, and the left and right inner walls of the installation grooves 6 are rotatably connected with rollers 7.

[0020] The upper centering and clamping assembly 18 comprises connecting plates 20, which are symmetrically arranged on the left and right sides, and two clamping plates 21 are fixedly connected between the front ends and the rear ends of the two connecting plates 20, the clamping plates 21 are arranged in front and back, the clamping plates 21 are in the shape of an angle iron, the included angles of the two surfaces of the clamping plates 21 are upward, the top front and rear ends of the connecting plates 20 are provided with sliding holes 22, the connecting plates 20 are slidably sleeved on the guide rods 9 through the sliding holes 22, the opposite side walls of the two connecting plates 20 are fixedly connected with convex plates 23 in the middle, and the middle of the top of the convex plates 23 is provided with threaded holes 24, and the upper and lower convex plates 23 are respectively threadedly sleeved on the threaded portions of the bidirectional screw rods 12 through the threaded holes 24.

[0021] Initially, the motor 13 is in a static state, the bidirectional screw rods 12 do not rotate, the upper centering and clamping assembly 18 and the lower centering and clamping assembly 19 are respectively located at initial positions, are threadedly connected on the bidirectional screw rods 12 and can slide on the guide rods 9, and the bar is placed on the support plate 5, and the rollers 7 assist the placement and movement of the bar and reduce friction.

[0022] When the motor 13 is started, the output shaft drives the right bidirectional screw rod 12 to start rotating, and since the top ends of the two bidirectional screw rods 12 are meshed with the bevel gears one 14 and the bevel gears two 17 respectively, the left bidirectional screw rod 12 will also rotate synchronously.

[0023] With the rotation of the bidirectional screw rods 12, the upper centering and clamping assembly 18 and the lower centering and clamping assembly 19 will move up and down along the guide rods 9 due to the threaded connection on the bidirectional screw rods 12.

[0024] Since the upper and lower portions of the bidirectional screw rods 12 are oppositely threaded, the upper centering and clamping assembly 18 and the lower centering and clamping assembly 19 will respectively move towards the middle, thereby achieving clamping of the bar.

[0025] When the clamping plates 21 of the upper centering and clamping assembly 18 and the lower centering and clamping assembly 19 contact the bar, continuing to rotate the bidirectional screw rods 12 will make the clamping plates 21 more tightly clamp the bar, and the upper and lower clamping plates 21 achieve centering and clamping.

[0026] The utility model only protects the mechanical part, and the functions realized by the software control part related thereto are not within the protection scope of the utility model.

Claims

1. A centering mechanism for a bar feeder, characterized by The utility model relates to a kind of centering and clamping assembly, including bottom plate (1), the vertical fixed connection column one (2) in the top middle part of bottom plate (1), the front and rear side of column one (2) is sequentially provided column two (3) and column three (4), column two (3) and column three (4) are vertically fixed in the top of bottom plate (1), the top of column one (2) and two column three (4) are fixedly connected with support plate (5), support plate (5) is angle iron shape, support plate (5) is left and right end upturned, the left and right side wall middle part of two column two (3) is fixedly connected with fixed plate one (8) in upper position, the top of fixed plate one (8) is fixedly connected with guide rod (9), guide rod (9) extends vertically, the top of two guide rods (9) of left and right same side is fixedly connected with top plate (10) between, top plate (10) is arc-shaped, two top plate (10) are symmetrical, the left and right side wall middle part of column one (2) is fixedly connected with fixed plate two (11) in upper position, fixed plate two (11) is below in the middle part of top plate (10), the top of fixed plate two (11) has two-way screw rod (12), the bottom end of two-way screw rod (12) is rotatably connected with fixed plate two (11), the top of two-way screw rod (12) is rotatably connected with the middle part of top plate (10), the top of two-way screw rod (12) penetrates out the top of top plate (10), the bottom end of two-way screw rod (12) penetrates out the bottom of fixed plate two (11), the bottom right end of right fixed plate two (11) is fixedly installed motor (13), the output shaft top of motor (13) is fixedly connected with the bottom end of right two-way screw rod (12), the top of two two-way screw rods (12) is fixedly connected with the bottom of bevel gear one (14), the middle part of opposite wall of two top plate (10) is fixedly connected with mounting plate (15), the opposite end of two mounting plates (15) is extended upwards, the opposite end of two mounting plates (15) is rotatably connected with rotating shaft (16) between, the both ends of rotating shaft (16) are respectively penetrated two mounting plates (15), the left and right ends of rotating shaft (16) are fixedly sleeved with bevel gear two (17), two bevel gear two (17) are engaged with two bevel gear one (14) respectively, the outer wall between four guide rods (9) is slidably sleeved with upper centering and clamping assembly (18) and lower centering and clamping assembly (19), upper centering and clamping assembly (18) is located above lower centering and clamping assembly (19), upper centering and clamping assembly (18) and lower centering and clamping assembly (19) are same and symmetrical, upper centering and clamping assembly (18) and lower centering and clamping assembly (19) are threadedly connected with two two-way screw rods (12).

2. A centering mechanism for a bar feeder as defined in claim 1, characterized in that The top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), the top of support plate (5) is fixedly connected with the top of two-way screw rod (12) on both sides, and the top of two-way screw rod (12) penetrates out the top of support plate (5), 3. A centering mechanism for a bar feeder as defined in claim 1, wherein The upper centering and clamping assembly (18) comprises connecting plates (20), two connecting plates (20) are symmetrically distributed left and right, two clamping plates (21) are fixedly connected between front ends and rear ends of the two connecting plates (20), the clamping plates (21) are distributed front and back, the clamping plates (21) are in the shape of an angle iron, the included angles of two surfaces of the clamping plates (21) are upward, sliding holes (22) are formed in top front and rear ends of the connecting plates (20), the connecting plates (20) are slidably sleeved on the guide rods (9) through the sliding holes (22), convex plates (23) are fixedly connected to middle portions of opposite side walls of the two connecting plates (20), threaded holes (24) are formed in top middle portions of the convex plates (23), and the upper and lower convex plates (23) are respectively threadedly sleeved on threaded portions of the two-way screw rods (12) through the threaded holes (24).