Ejecting mechanism of cold header

Abstract

The utility model discloses an ejection mechanism of a cold header, which relates to the technical field of cold header equipment and comprises a device main body, a fixing device and an ejection device are arranged in the device main body, and the ejection mechanism of the cold header is further provided with a die switching device. Comprising a rotary knob, a lifting column, a threaded rod, two limiting columns, four material ejecting molds and four connecting blocks, firstly, a button corresponding to the concave shape of each material ejecting mold is pressed, and when the lifting column ascends to a certain position, the lifting column can abut against a rectangular block located in the material ejecting device; at the moment, the shape needing to be machined on the material ejecting mold corresponds to the fixing device of the to-be-machined material, the to-be-machined material can be directly machined by directly starting the material ejecting mechanism, and the purpose of replacing the concave shape of the material ejecting mold can be achieved by moving the corresponding rectangular block and then rotating the rotary knob; therefore, workers do not need to disassemble the material ejection mold, and the replacement process of the material ejection mold is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading machine equipment, and particularly relates to a cold heading machine ejector mechanism. Background Art

[0002] A cold heading machine is a metal processing equipment mainly used for processing products such as threads, bolts and nuts. It forms the shape of metal materials through the cold heading process, that is, by using dies to extrude and plastically deform at room temperature. Cold heading machines are usually used for mass production and can efficiently process threaded parts that meet the standard size and quality requirements. The cold heading machine ejector mechanism refers to a device on the cold heading machine that provides ejecting pressure to workpieces. By gradually approaching and extruding the material to be processed with the die, the material deforms to achieve the purpose of processing parts.

[0003] However, in the process of implementing the above technical solutions, it is found that there are at least the following technical problems: The cold heading machine needs to push the die to extrude the material to be processed to obtain the threaded parts desired by the staff. However, threaded parts include hexagon head bolts, octagon head bolts, square head bolts and round head bolts. When the ejector mechanism needs to process bolts of different specifications, tools need to be frequently used to disassemble and install the die to achieve the purpose of replacing the die, and then restart the ejector mechanism to process the material to be processed, making the die replacement process cumbersome. Summary of the Utility Model

[0004] Provided is a cold heading machine ejector mechanism, which solves the technical problem that when the ejector mechanism needs to process bolts of different specifications, tools need to be frequently used to disassemble and install the die to achieve the purpose of replacing the die, and then restart the ejector mechanism to process the material to be processed, making the die replacement process cumbersome.

[0005] A cold heading machine ejector mechanism includes:

[0006] A device main body, in which a fixing device and an ejecting device are arranged, and a hole two is penetrated and opened on the upper surface of the ejecting device;

[0007] A die switching device is arranged between the device main body and the fixing device. The die switching device includes:

[0008] A threaded rod located inside the ejecting device;

[0009] A knob is fixedly connected to the upper surface of the threaded rod through the hole two;

[0010] Two limiting columns, both of which are located on both sides of the threaded rod;

[0011] A lifting column is arranged at the bottom of the threaded rod and is rotatably connected to the threaded rod. Four connecting blocks are evenly arranged on the lifting column;

[0012] Wherein, both ends of the threaded rod are rotatably connected to the inner wall of the ejecting device, and the two limit columns are rotatably connected to the inner wall of the ejecting device. Four ejecting molds are also arranged on one side of the ejecting device.

[0013] Preferably, the lifting column is located inside the lifting device, and the upper surface of the lifting column is penetrated by two holes corresponding to the positions of the limit columns.

[0014] Preferably, the lifting column is movably connected with the limiting column through hole one, and a thread groove corresponding to the position of the threaded rod is formed through the upper surface of the lifting column.

[0015] Preferably, the lifting column is threadedly connected with the threaded rod through a threaded groove, four ejecting molds are located at one end of the ejecting device, and the four ejecting molds are each provided with depressions of multiple shapes.

[0016] Preferably, four long grooves corresponding to the lifting material molds are penetrated at one end of the lifting device, four connecting blocks are located inside the four long grooves, the four connecting blocks are fixedly connected to the lifting columns, and one side of each connecting block facing away from the lifting column is fixedly connected to the corresponding lifting material mold.

[0017] Preferably, a fixing frame is fixedly connected to the right surface of the ejecting device, and four mutually parallel rectangular blocks are arranged inside the fixing frame, and the positions of the four rectangular blocks all correspond to the recesses of the shape inside the ejecting mold.

[0018] Preferably, the right surface of the ejecting device is penetrated by four rectangular grooves corresponding to the positions of the rectangular blocks, and both ends of each rectangular block are fixedly connected to the limiting blocks.

[0019] Preferably, the right surface of the fixed frame is provided with four holes corresponding to the positions of the rectangular blocks, and the right end of each fixed frame is provided with four buttons, each button passes through the corresponding hole three and is fixedly connected to the right surfaces of the four rectangular blocks.

[0020] The beneficial effects of the utility model are:

[0021] The utility model can achieve the purpose of replacing the concave shape of the ejecting mold by moving the corresponding rectangular block and then rotating the knob, so that the staff does not need to disassemble the ejecting mold, thereby simplifying the replacement process of the ejecting mold.

[0022] The utility model presses the corresponding button, which will drive the rectangular block to rotate. When the rectangular block moves to a certain distance, the limit block will abut against the right surface of the lifting device, so that the rectangular block cannot move further, thereby avoiding the problem of excessive movement of the rectangular block causing the rectangular block to collide with a limit column at one end. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0024] Figure 1 It is the structure diagram of the whole of the present invention;

[0025] Figure 2 It is the structure diagram of the fixing device and the ejecting device of the present invention;

[0026] Figure 3 It is the structure diagram of the mold of the present invention;

[0027] Figure 4 It is the structure diagram inside the ejecting device of the present invention.

[0028] Description of the drawings: 1. Device main body; 2. Fixing device; 3. Ejecting device; 4. Ejecting mold; 5. Knob; 6. Fixing frame; 7. Button; 8. Long slot; 9. Connecting block; 10. Lifting column; 11. Hole 1; 12. Limiting column; 13. Hole 2; 14. Limiting block; 15. Threaded rod; 16. Rectangular slot; 17. Hole 3; 18. Rectangular block. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] As Figures 1 to 3 shown, the present invention provides as Figures 1 - 4As shown in the figure, the present utility model provides a cold heading machine ejector mechanism, which includes a device main body 1. A fixing device 2 and an ejector device 3 are arranged inside the device main body 1. The cold heading machine ejector mechanism is also provided with a die switching device, which includes a knob 5, a lifting column 10, a threaded rod 15, two limit columns 12, four ejector dies 4 and four connecting blocks 9. The ejector device 3 has a hollow internal structure. The threaded rod 15 is located inside the ejector device 3, and both ends of the threaded rod 15 are rotatably connected to the inner wall of the ejector device 3. The two limit columns 12 are both located at both ends of the threaded rod 15, and the two limit columns 12 are both rotatably connected to the inner wall of the ejector device 3. A hole two 13 is penetrated and opened on the upper surface of the ejector device 3, and the position of the hole two 13 corresponds to the position of the threaded rod 15. The lower surface of the knob 5 passes through the hole two 13 and is fixedly connected to the upper surface of the threaded rod 15. The lifting column 10 is located inside the ejector device 3, and two holes one 11 corresponding to the positions of the limit columns 12 are penetrated and opened on the upper surface of the lifting column 10;

[0032] When the staff needs to replace a specific ejector die 4, first press the button 7 corresponding to the concave shape of the ejector die 4. At this time, the corresponding button 7 pushes the corresponding rectangular block 18 to move, so that the rectangular block 18 passes through the corresponding rectangular groove 16 and reaches the inside of the ejector device 3. At this time, rotate the knob 5, and the knob 5 drives the threaded rod 15 to rotate. Since the lifting column 10 threadedly sleeved with the threaded rod 15 is limited by the two limit columns 12 and does not rotate, when the threaded rod 15 rotates, the lifting column 10 will continue to move in a straight line vertically upward.

[0033] It effectively solves the technical problem that when the ejector mechanism needs to process bolts of different specifications, it is necessary to frequently use tools to disassemble and install the die to achieve the purpose of replacing the die, and restart the ejector mechanism to process the material to be processed, making the die replacement process cumbersome.

[0034] Embodiment 2:

[0035] On the basis of Embodiment 1, the lifting column 10 is movably sleeved with the limit column 12 through the hole one 11. A threaded groove corresponding to the position of the threaded rod 15 is penetrated and opened on the upper surface of the lifting column 10. The lifting column 10 is threadedly sleeved with the threaded rod 15 through the threaded groove. The four ejector dies 4 are located at one end of the ejector device 3, and multiple concave shapes are arranged on the four ejector dies 4. Four long grooves 8 corresponding to the ejector dies 4 are penetrated and opened at one end of the ejector device 3. The four connecting blocks 9 are all located inside the four long grooves 8, and the four connecting blocks 9 are all fixedly connected to the lifting column 10. One side of each connecting block 9 facing away from the lifting column 10 is fixedly connected to the corresponding ejector die 4;

[0036] When the lifting column 10 rises to a certain position, the lifting column 10 will abut against the rectangular block 18 inside the blanking device 3. At this time, the shape to be processed on the blanking die 4 corresponds to the fixing device 2 of the material to be processed. At this time, directly starting the blanking mechanism can directly process the material to be processed. By moving the corresponding rectangular block 18 and then rotating the knob 5, the purpose of changing the concave shape of the blanking die 4 can be achieved, so that the staff does not need to disassemble the blanking die 4, simplifying the replacement process of the blanking die 4.

[0037] Embodiment 3:

[0038] On the basis of Embodiment 2, a fixed frame 6 is fixedly connected to the right surface of the blanking device 3. Four mutually parallel rectangular blocks 18 are arranged inside the fixed frame 6. The positions of the four rectangular blocks 18 correspond to the depressions in the shape inside the blanking die 4. Four rectangular grooves 16 corresponding to the positions of the rectangular blocks 18 are respectively formed through the right surface of the blanking device 3. Limit blocks 14 are fixedly connected to both ends of each rectangular block 18. Four holes three 17 corresponding to the positions of the rectangular blocks 18 are respectively formed through the right surface of the fixed frame 6. Four buttons 7 are arranged at the right end positions of each fixed frame 6. Each button 7 passes through the corresponding hole three 17 and is fixedly connected to the right surface of the four rectangular blocks 18. Pressing the corresponding button 7 will drive the rectangular block 18 to rotate. When the rectangular block 18 moves a certain distance, the limit block 14 will abut against the right surface of the blanking device 3, making the rectangular block 18 unable to move further, avoiding the problem that the rectangular block 18 collides with one end of the limit post 12 due to excessive movement of the rectangular block 18.

[0039] Working principle: when the staff needs to replace a specific ejecting mold 4, first press the button 7 corresponding to the concave shape of the ejecting mold 4. At this time, the corresponding button 7 pushes the corresponding rectangular block 18 to move, so that the rectangular block 18 passes through the corresponding rectangular groove 16 to reach the inside of the ejecting device 3. At this time, rotate the knob 5, and the knob 5 drives the threaded rod 15 to rotate. Since the lifting column 10 threadedly sleeved with the threaded rod 15 is limited by two limit columns 12 and does not rotate, the lifting column 10 will continue to move vertically upward in a straight line when the threaded rod 15 rotates. When the lifting column 10 rises to a certain position, the lifting column 10 will resist the rectangular block 18 located inside the ejecting device 3. At this time, the ejecting mold 4 The shape to be processed corresponds to the fixing device 2 of the material to be processed. At this time, the material to be processed can be directly processed by directly starting the ejection mechanism. The purpose of replacing the concave shape of the ejection mold 4 can be achieved by moving the corresponding rectangular block 18 and rotating the knob 5, so that the staff does not need to disassemble the ejection mold 4, which simplifies the replacement process of the ejection mold 4. Press the corresponding button 7, and the button 7 will drive the rectangular block 18 to rotate. When the rectangular block 18 moves to a certain distance, the limit block 14 will resist the right surface of the ejection device 3, so that the rectangular block 18 cannot continue to move, thereby avoiding the problem of excessive movement of the rectangular block 18 causing the rectangular block 18 to collide with the limit column 12 at one end.

[0040] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A cold heading machine feeding mechanism, characterized in that: include: A device body (1), wherein a fixing device (2) and a material pushing device (3) are arranged inside the device body (1), and a second hole (13) is penetrated through the upper surface of the material pushing device (3); The mold switching device is arranged between the device body (1) and the fixing device (2), and the mold switching device comprises: A threaded rod (15), wherein the threaded rod (15) is located inside the ejecting device (3); The knob (5) passes through the second hole (13) and is fixedly connected to the upper surface of the threaded rod (15); Two limiting posts (12), both of which are located on two sides of the threaded rod (15); A lifting column (10) is arranged at the bottom of the threaded rod (15) and is rotatably connected to the threaded rod (15), and four connecting blocks (9) are evenly arranged on the lifting column (10); Wherein, both ends of the threaded rod (15) are rotatably connected to the inner wall of the ejecting device (3), and the two limit posts (12) are rotatably connected to the inner wall of the ejecting device (3). Four ejecting molds (4) are also arranged on one side of the ejecting device (3).

2. A cold heading machine ejection mechanism as claimed in claim 1, characterized in that: The lifting column (10) is located inside the lifting device (3); The upper surface of the lifting column (10) is provided with two holes (11).

3. A cold heading machine ejection mechanism as claimed in claim 1, characterized in that: The lifting column (10) is movably connected to the limiting column (12) through the hole 1 (11); Wherein, a thread groove is formed through the upper surface of the lifting column (10).

4. A cold heading machine ejection mechanism as claimed in claim 3, characterized in that: The lifting column (10) is threadedly sleeved with the threaded rod (15) via a threaded groove; Among them, four ejection molds (4) are located at one end of the ejection device (3).

5. A cold heading machine ejection mechanism as claimed in claim 1, characterized in that: One end of the ejection device (3) is penetrated by four long grooves (8) corresponding to the ejection mold (4), and the four connecting blocks (9) are located inside the four long grooves (8); The four connecting blocks (9) are all fixedly connected to the lifting column (10), and a side of each connecting block (9) facing away from the lifting column (10) is fixedly connected to a corresponding ejecting mold (4).

6. A cold heading machine ejection mechanism as claimed in claim 1, characterized in that: A fixing frame (6) is fixedly connected to the right surface of the ejecting device (3); Wherein, four mutually parallel rectangular blocks (18) are arranged inside the fixing frame (6).

7. A cold heading machine ejection mechanism as claimed in claim 6, characterized in that: The right surface of the ejecting device (3) is provided with four rectangular grooves (16) corresponding to the positions of the rectangular blocks (18); Wherein, both ends of each rectangular block (18) are fixedly connected to a limiting block (14).

8. A cold heading machine ejection mechanism as claimed in claim 7, characterized in that: The right surface of the fixing frame (6) is provided with four holes (17) corresponding to the positions of the rectangular blocks (18); Wherein, four buttons (7) are arranged at the right end of each fixing frame (6), and each of the buttons (7) passes through the corresponding hole three (17) and is fixedly connected to the right surface of the four rectangular blocks (18).

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