Automatic bar feeding mechanism for cutting machine

Abstract

The utility model discloses a kind of bar automatic replenishing mechanisms of cutting machine, it is related to automatic material supplementing technical field, including inclined frame and the support arm of fixed installation in the bottom of inclined frame, first stop lever is slidably installed on the inclined frame, second stop lever is slidably installed on the inclined frame and located above first stop lever;First stop lever and second stop lever are parallel to each other and all are horizontal state.The utility model blocks first stop lever to first bar to be replenished, and blocks second bar to be replenished and surplus bar to be replenished on it by second stop lever;During normal pushing process to processing bar, there is gap between processing bar and first bar to be replenished, so friction will not be generated, both can reduce the wear and tear of bar surface, and can reduce the energy consumption required to push bar.

Description

Technical Field

[0001] This utility model relates to the field of automatic feeding technology, specifically an automatic feeding mechanism for bar stock in a cutting machine. Background Technology

[0002] When cutting bar stock with a cutting machine, a special feeding mechanism is needed to transport the bar stock. There is already some research on automatic bar stock conveyors in the existing technology.

[0003] For example, Chinese invention patent CN108543958B discloses an automatic metal bar feeder, belonging to the field of lathe auxiliary facilities technology. It includes a chassis base; a chassis mounted on the chassis base, with a chassis cover positioned on the chassis corresponding to the chassis cavity; a bar pushing clearance cavity on the right wall of the chassis cover corresponding to the inlet; and a clearance notch formed in the middle of the rear side wall of the chassis along its length; a reciprocating traction mechanism for a movable base plate located within the chassis cavity, with the movable base plate mounted on the reciprocating traction mechanism; a bar pushing mechanism mounted on the movable base plate; a bar workpiece length compensation and propulsion mechanism connected to the bar pushing mechanism; a stock rack supported on the ground and connected to the rear side wall of the chassis; and a feeding mechanism for transferring metal bars from the stock rack to the bar pushing mechanism, the feeding mechanism being located within the chassis cavity and extending to the stock rack.

[0004] In existing bar feeding devices, including the aforementioned patent, adjacent bars are tightly fitted together. During the pushing process of the processed bar, friction occurs between the processed bar and the adjacent bar to be processed, which not only causes wear on the bar surface but also increases the energy consumption required to push the bar. Utility Model Content

[0005] The purpose of this invention is to provide an automatic bar feeding mechanism for cutting machines to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic bar feeding mechanism for a cutting machine, comprising an inclined frame and a support arm fixedly installed at the bottom of the inclined frame, wherein a first stop bar is slidably installed on the inclined frame, and a second stop bar located above the first stop bar is slidably installed on the inclined frame; the first stop bar and the second stop bar are parallel to each other and are both horizontal.

[0007] Preferably, one side surface of the first stop bar mates with the surface of the bar stock.

[0008] Preferably, the sliding direction of the first stop and the second stop is perpendicular to the plane where the tilting frame is located.

[0009] Preferably, a first control frame is fixedly installed at the bottom of the first stop bar, and a second control frame is fixedly installed at the bottom of the second stop bar; both the first stop bar and the second stop bar have a first state of blocking the bar stock and a second state of releasing the bar stock.

[0010] Preferably, the first control frame has a first inclined groove, and the second control frame has a second inclined groove; a control plate is slidably mounted on the inclined frame, and a first round rod passing through the first inclined groove and a second round rod passing through the second inclined groove are mounted on the control plate.

[0011] Preferably, there are two control boards, with the first round rod and the second round rod installed between the two control boards.

[0012] Preferably, a cylinder for adjusting the position of the control panel is fixedly installed on the tilting frame.

[0013] Preferably, a limiting plate is fixedly installed on the upper surface of the tilting frame, and a pusher for pushing the bar is slidably installed at one end of the bottom of the tilting frame.

[0014] Preferably, a spring connects the push frame and the tilting frame; a wedge block is fixedly installed on one side of the push frame, and a roller that fits against the inclined side of the wedge block is installed on the control plate via a rigid arm.

[0015] In the above technical solution, the present invention provides an automatic bar feeding mechanism for a cutting machine. A first stop blocks the first bar to be replenished, and a second stop blocks the second bar and any remaining bars above it. During normal bar feeding, a gap exists between the processed bar and the first bar to be replenished, thus preventing friction and reducing wear on the bar surface and energy consumption for feeding. During replenishment, the first stop lowers to release the first bar to be replenished, and the second stop rises to block the remaining bars, achieving the effect of releasing only a single bar for replenishment at a time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a first perspective view of the automatic bar feeding mechanism for the cutting machine in the embodiment;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a second perspective view of the automatic bar feeding mechanism for the cutting machine in the embodiment;

[0020] Figure 4 This is a perspective view of the first stop lever in the embodiment;

[0021] Figure 5 This is a perspective view of the second stop in the embodiment.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Inclined frame; 2. Support arm; 3. First stop bar; 4. Second stop bar; 5. First control frame; 501. First inclined groove; 6. Second control frame; 601. Second inclined groove; 7. Control panel; 8. First round rod; 9. Second round rod; 10. Cylinder; 11. Limiting plate; 12. Push frame; 13. Wedge block; 14. Roller. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] It should be noted that, for ease of explanation in this embodiment, the positions of the first and second bars to be replenished are adjusted upwards to separate from the tilting frame 1 in the accompanying drawings.

[0026] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment provides an automatic bar feeding mechanism for a cutting machine, including an inclined frame 1 and a support arm 2 fixedly installed at the bottom of the inclined frame 1. A first stop bar 3 is slidably mounted on the inclined frame 1, and a second stop bar 4 located above the first stop bar 3 is slidably mounted on the inclined frame 1. The first stop bar 3 and the second stop bar 4 are parallel to each other and are both horizontal. One side surface of the first stop bar 3 mates with the surface of the bar. The sliding direction of the first stop bar 3 and the second stop bar 4 is perpendicular to the plane of the inclined frame 1. Both the first stop bar 3 and the second stop bar 4 have a first state of blocking the bar and a second state of releasing the bar.

[0027] Under normal operating conditions, the bar stock located between the tilting frame 1 and the support arm 2 and in contact with both is the processing bar stock, which is intermittently translated under the push of the external conveying mechanism. During the above process, the first stop bar 3 is in the first state, in contact with the first bar stock to be replaced and blocking it, while the remaining bars stock are in contact with their respective adjacent bars stock. There is a gap between the first stop bar 3 and the processing bar stock, so the processing bar stock will not rub against the first stop bar 3 during the translation process. During the above process, the second stop bar 4 is in the second state and does not contact any bar stock.

[0028] When replenishment is needed, the first stop lever 3 slides downwards from the first state to the second state, while the second stop lever 4 simultaneously slides upwards from the second state to the first state. During this process, the first piece of bar to be replenished separates from the first stop lever 3 and rolls downwards between the tilting frame 1 and the support arm 2. The second piece of bar to be replenished is blocked by the second stop lever 4 in the first state, thus achieving the effect of only one piece of bar rolling to the predetermined processing position. Next, the first stop lever 3 slides upwards from the second state to the first state, while the second stop lever 4 simultaneously slides downwards from the first state to the second state. During this process, all pieces of bar to be replenished roll downwards simultaneously until the bottom piece of bar to be replenished comes into contact with the first stop lever 3 in the first state. This completes one replenishment cycle. In summary, each time replenishment is needed, the first stop lever 3 first switches from the first state to the second state and then back to the first state; the second stop lever 4 switches from the second state to the first state and then back to the second state.

[0029] like Figure 1 and Figure 2 As shown, a first control frame 5 is fixedly installed at the bottom of the first stop bar 3, and a second control frame 6 is fixedly installed at the bottom of the second stop bar 4. A first inclined groove 501 is formed on the first control frame 5, and a second inclined groove 601 is formed on the second control frame 6. A control plate 7 is slidably installed on the tilting frame 1 along an inclined path parallel to the rolling direction of the bar stock. A first round rod 8 penetrating the first inclined groove 501 and a second round rod 9 penetrating the second inclined groove 601 are installed on the control plate 7. The first inclined groove is in contact with the first round rod 8, and the second inclined groove 601 is in contact with the second round rod 9. There are two control plates 7, with the first round rod 8 and the second round rod 9 installed between the two control plates 7. A cylinder 10 for adjusting the position of the control plate 7 is fixedly installed on the tilting frame 1.

[0030] Specifically, when cylinder 10 extends or retracts, it causes control plate 7 to slide, thereby moving the first round rod 8 and the second round rod 9. The interaction between the first round rod 8 and the first inclined groove 501 causes the first control frame 5 and the first stop rod 3 to move, thus controlling the state switching of the first stop rod 3. The interaction between the second round rod 9 and the second inclined groove 601 causes the second control frame 6 and the second stop rod 4 to move, thus controlling the state switching of the second stop rod 4. During normal operation, control plate 7 is at the bottom of its stroke, cylinder 10 is in the extended state, first round rod 8 is at the bottom of the first inclined groove 501, and second round rod 9 is at the top of the second inclined groove 601. During material replenishment, cylinder 10 first retracts, causing control plate 7 to rise along its stroke along the inclined path, and the first stop rod 3 and the second stop rod 4 simultaneously switch states. Then, cylinder 10 extends and returns to its original position, control plate 7 descends along its stroke along the inclined path, and the first stop rod 3 and the second stop rod 4 simultaneously switch back to their initial state. In this way, by simply controlling cylinder 10 to retract and then return to its original position, the replenishment of a single bar stock can be achieved.

[0031] like Figure 2 and Figure 3 As shown, a limit plate 11 is fixedly installed on the upper surface of the tilting frame 1, and a pusher 12 for pushing bar stock is slidably installed at one end of the bottom of the tilting frame 1. A spring connects the pusher 12 and the tilting frame 1; a wedge block 13 is fixedly installed on one side of the pusher 12, and a roller 14 that fits against the inclined side of the wedge block 13 is installed on the control plate 7 via a rigid arm.

[0032] When the operator places the bar stock, one end of the bar stock is aligned with the limiting plate 11. This ensures that each bar stock, after rolling between the tilting frame 1 and the support arm 2, has a slight deviation from its initial position. The pusher 12 then pushes the bar stock to the correct position. This method ensures that each added bar stock is in the correct position. Under normal conditions, the spring is compressed. When the control plate 7 rises along the tilting path, the roller 14 also rises along the tilting path. The compressed spring pushes the pusher 12 and the wedge block 13 to translate, specifically, away from the tilting frame 1. The bar stock rolls between the tilting frame 1 and the support arm 2, but is not in the correct position. Next, the control plate 7 descends along the tilting path, and the roller 14 also descends along the tilting path. The roller 14 applies a pushing force to the wedge block 13, causing the wedge block 13 and the pusher 12 to translate towards the tilting frame 1. The pusher 12 then pushes the end of the bar stock, pushing it to the correct position. In summary, in this embodiment, when replenishing the bar stock, the cylinder 10 first contracts and then extends to return to its original position. This not only enables the replenishment of a single bar stock, but also allows for the synchronous pushing of the replenished bar stock to ensure it is in the correct position.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic bar feeding mechanism for a cutting machine, comprising an inclined frame (1) and a support arm (2) fixedly installed at the bottom of the inclined frame (1), characterized in that, A first stop bar (3) is slidably mounted on the tilting frame (1), and a second stop bar (4) located above the first stop bar (3) is slidably mounted on the tilting frame (1); the first stop bar (3) and the second stop bar (4) are parallel to each other and are both horizontal.

2. The automatic bar feeding mechanism for a cutting machine according to claim 1, characterized in that, One side surface of the first stop (3) is in contact with the surface of the bar stock.

3. The automatic bar feeding mechanism for a cutting machine according to claim 2, characterized in that, The sliding direction of the first stop (3) and the second stop (4) is perpendicular to the plane where the tilting frame (1) is located.

4. The automatic bar feeding mechanism for a cutting machine according to claim 3, characterized in that, The first stop (3) is fixedly mounted with a first control frame (5) at its bottom, and the second stop (4) is fixedly mounted with a second control frame (6) at its bottom; both the first stop (3) and the second stop (4) have a first state of blocking the bar and a second state of releasing the bar.

5. The automatic bar feeding mechanism for a cutting machine according to claim 4, characterized in that, The first control frame (5) has a first inclined groove (501) and the second control frame (6) has a second inclined groove (601); a control plate (7) is slidably installed on the inclined frame (1), and a first round rod (8) that passes through the first inclined groove (501) and a second round rod (9) that passes through the second inclined groove (601) are installed on the control plate (7).

6. The automatic bar feeding mechanism for a cutting machine according to claim 5, characterized in that, The number of control panels (7) is two, with a first round rod (8) and a second round rod (9) installed between the two control panels (7).

7. The automatic bar feeding mechanism for a cutting machine according to claim 6, characterized in that, A cylinder (10) for adjusting the position of the control panel (7) is fixedly installed on the tilting frame (1).

8. The automatic bar feeding mechanism for a cutting machine according to claim 7, characterized in that, A limiting plate (11) is fixedly installed on the upper surface of the tilting frame (1), and a pusher (12) for pushing the bar is slidably installed at one end of the bottom of the tilting frame (1).

9. The automatic bar feeding mechanism for a cutting machine according to claim 8, characterized in that, A spring is connected between the push frame (12) and the tilt frame (1); a wedge block (13) is fixedly installed on one side of the push frame (12), and a roller (14) that fits against the inclined side of the wedge block (13) is installed on the control plate (7) through a rigid arm.

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