A cold heading device for fastener production

Abstract

This invention discloses a cold heading device for fastener production, relating to the field of fastener forming technology. The cold heading device for fastener production includes a fixed platform, a positioning element fixedly connected inside the fixed platform, a fixed frame fixedly connected to the top of the fixed platform, a pressure-applying element fixedly connected to the bottom of the fixed frame at a position corresponding to the top of the positioning element, a discharge mechanism movably connected to the bottom of the fixed platform, and an ejection mechanism fixedly connected to the bottom of the positioning element. In this cold heading device, a slanted pusher plate pushes the fastener past a slanted pad. The fastener vibrates inside a collection groove, causing excess lubricating oil on the fastener surface to be shaken off. The lubricating oil then flows through the collection groove to a baffle plate, reducing residual lubricating oil on the fastener surface after forming and preventing excessive lubricating oil from affecting subsequent fastener processing.

Description

Technical Field

[0001] This invention relates to the field of fastener forming technology, specifically to a cold heading device for fastener production. Background Technology

[0002] Fasteners are parts used to connect components in various equipment and devices. They are relatively inexpensive and easy to use.

[0003] The patent application with Chinese application number 202411420567.4 discloses a cold heading device for fastener production, which includes a mounting frame, a rotating table rotatably connected to the top of the mounting frame, a hydraulic cylinder mounted on the rotating table, the telescopic end of the hydraulic cylinder being slidably connected to the rotating table, a cold heading component mounted on the mounting frame, a first spur gear in the shape of a ring connected to the outside of the rotating table, a drive motor connected to the upper rear part of the mounting frame, a second spur gear connected to the output shaft of the drive motor, and the first spur gear and the second spur gear meshing with each other; Lubricating oil is used in the cold heading process of nuts. The lubricating oil provides lubrication and cooling between the metal material and the mold, which can effectively improve the forming quality of the product. If the fasteners after cold heading are directly put into the quenching furnace with a large amount of lubricating oil, the oil will produce a lot of oil fumes at high temperature, which will pollute the furnace and heating elements, affect the stability of the atmosphere in the furnace, and cause decarburization or carbonization on the surface of the parts, which will seriously affect the mechanical properties. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a cold heading apparatus for fastener production, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a cold heading device for fastener production, comprising a fixed platform, a positioning component fixedly connected inside the fixed platform, a fixed frame fixedly connected to the top of the fixed platform, a pressure component fixedly connected to the bottom of the fixed frame at a position corresponding to the top of the positioning component, a discharge mechanism movably connected to the bottom of the fixed platform, and an ejection mechanism fixedly connected to the bottom of the positioning component. The discharging mechanism includes: A rotating platform, which is movably connected to the bottom of a fixed platform; A high-torque motor is fixedly connected inside the rotating platform, and the top output shaft of the high-torque motor passes through the rotating platform and is fixedly connected to the bottom of the fixed platform. A guide plate is fixedly connected to the top of the positioning component.

[0006] Preferably, the bottom of the pressure-applying component is used to fix the cold heading mold, and the interior of the positioning component is located at the corresponding position at the bottom of the pressure-applying component to fix the cold heading mold. The metal material is placed into the mold at the top of the positioning component, and at the same time, the pressure-applying component pushes the corresponding mold downward, so that the mold at the bottom of the pressure-applying component and the mold at the top of the positioning component cooperate with each other to jointly squeeze the metal material, so that the metal material is cold-headed.

[0007] Preferably, a collection trough is provided on the outside of the fixed platform, and an inclined push plate is fixedly connected to the top of the collection trough on the outside of the fixed platform. An outlet is provided on the outside of the collection trough. The inclined push plate is an inclined plate structure, which will push the airflow simultaneously when the fastener is pushed. The baffle plate is used to guide the lubricating oil passing through the collection trough and prevent the lubricating oil from splashing everywhere after passing through the collection trough.

[0008] Preferably, the bottom of the collection tank is a filter structure, the top of the collection tank is fixedly connected to the bottom of the inclined push plate with an inclined pad, and the bottom of the inclined pad is fixedly connected to a baffle plate.

[0009] Preferably, the ejection mechanism includes a fixed plate, which is fixedly connected to the bottom of the positioning member. A hollow ejector rod is movably connected inside the fixed plate, and an ejection spring is fixedly connected to the outer wall of the hollow ejector rod. The ejection spring is fixedly connected to the top of the fixed plate.

[0010] Preferably, a fixed chamber is fixedly connected to the bottom of the fixed plate, a suction pipe is fixedly connected to the bottom of the fixed chamber, an oil passage groove is fixedly connected to the outside of the rotating table, and the suction pipe is located inside the oil passage groove.

[0011] Preferably, the bottom of the hollow top rod is fixedly connected to an inner chamber inside the fixed chamber. The bottom of the inner chamber is provided with an opening. An inner plug plate is movably connected to the top of the corresponding opening inside the inner chamber. An outer plug plate is movably connected to the top of the suction pipe inside the fixed chamber. When the oil pressure inside the inner chamber increases, the outer plug plate will block the connection between the fixed chamber and the suction pipe under the push of the oil pressure. When the oil pressure inside the inner chamber decreases, the outer plug plate will be pushed open under the push of the external oil pressure, so that the external lubricating oil can enter the fixed chamber through the suction pipe.

[0012] Preferably, the hollow top rod has a channel inside, and the channel is connected to the interior of the inner compartment. The outer wall of the hollow top rod is provided with an oil drain hole near the top of the hollow top rod.

[0013] This invention provides a cold heading apparatus for fastener production. It has the following advantages: 1. The cold heading device for fastener production uses a slanted pusher to push the fastener through the slanted pad. The fastener vibrates inside the collection tank, causing excess lubricating oil on the fastener surface to be shaken off. The lubricating oil then flows through the collection tank to the baffle plate, reducing the residual lubricating oil on the fastener surface after forming and preventing excessive lubricating oil from affecting subsequent processing of the fastener.

[0014] 2. This cold heading device for fastener production uses a high-torque motor to drive a fixed table to rotate, causing the formed fasteners to slide into the collection tank. A further inclined pusher pushes the fasteners into the discharge port, facilitating the collection of the formed fasteners. This allows for quick demolding and centralized collection of the formed fasteners, while also facilitating the input of new metal materials for a new round of forming processes, thus improving processing efficiency.

[0015] 3. In the cold heading device used for fastener production, during the cold heading process where the pressure component pushes the mold, the hollow ejector rod is pushed, causing lubricating oil to be sprayed out from the outer plug plate through the channel inside the hollow ejector rod, thus spraying the lubricating oil into the mold. This allows for control of lubricating oil consumption in a single forming process, avoiding the use of excessive lubricating oil. Consequently, it reduces the amount of lubricating oil adhering to the surface of the fastener after forming, thereby preventing excessive lubricating oil from affecting subsequent processing of the fastener.

[0016] 4. The cold heading device for fastener production causes the fasteners to vibrate when pushed at the top of the collection tank, which further causes excess lubricating oil on the surface of the fasteners to fall through the collection tank into the oil passage tank. This facilitates the extraction of lubricating oil by the suction pipe for reuse, and makes it easier to recycle excess lubricating oil, thereby improving the utilization rate of lubricating oil during the cold heading process. Attached Figure Description

[0017] Figure 1 This is a front-view stereoscopic structural diagram of the present invention; Figure 2 This is a top-view three-dimensional structural diagram of the present invention; Figure 3 for Figure 1 Enlarged structural diagram of section A in the middle; Figure 4 for Figure 2 Enlarged structural diagram of section B; Figure 5 for Figure 1 Schematic diagram of cross-section structure; Figure 6 for Figure 5 Enlarged structural diagram of section C; Figure 7 This is a cross-sectional view of the positioning component of the present invention; Figure 8 for Figure 7Enlarged structural diagram of section D in the middle; Figure 9 for Figure 7 Enlarged structural diagram of section E in the middle; Figure 10 For this Figure 7 Enlarged structural diagram of the middle F section.

[0018] In the diagram: 1. Fixed platform; 2. Fixed frame; 3. Pressure applying component; 4. Positioning component; 5. Discharge mechanism; 51. Guide plate; 52. Collection trough; 53. Discharge port; 54. Inclined push plate; 55. Inclined pad block; 56. High torque motor; 57. Baffle plate; 58. Rotating platform; 6. Ejection mechanism; 61. Hollow push rod; 62. Ejection spring; 63. Fixed plate; 64. Fixed chamber; 65. Internal chamber; 66. Inner plug plate; 67. Suction pipe; 68. Outer plug plate; 69. Oil passage groove; 610. Oil drain hole. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0021] Example 1: Please refer to Figure 1-6 The present invention provides a technical solution: a cold heading device for fastener production, including a fixed platform 1, a positioning component 4 fixedly connected inside the fixed platform 1, a fixed frame 2 fixedly connected to the top of the fixed platform 1, a pressure component 3 fixedly connected to the bottom of the fixed frame 2 at the corresponding position on the top of the positioning component 4, a discharge mechanism 5 movably connected to the bottom of the fixed platform 1, and an ejection mechanism 6 fixedly connected to the bottom of the positioning component 4. The discharge mechanism 5 includes: Rotary table 58 is movably connected to the bottom of fixed table 1; A high-torque motor 56 is fixedly connected inside the rotating platform 58, and the top output shaft of the high-torque motor 56 passes through the rotating platform 58 and is fixedly connected to the bottom of the fixed platform 1. Guide plate 51 is fixedly connected to the top of positioning component 4.

[0022] The bottom of the pressure-applying component 3 is used to fix the cold heading mold, and the interior of the positioning component 4 is located at the corresponding position on the bottom of the pressure-applying component 3 to fix the cold heading mold.

[0023] The metal material is placed into the mold at the top of the positioning component 4, while the pressure component 3 pushes the corresponding mold downwards, so that the mold at the bottom of the pressure component 3 and the mold at the top of the positioning component 4 cooperate to squeeze the metal material together, so that the metal material is cold-forged. During the process of the mold at the bottom of the pressure component 3 pushing the metal material, the ejection mechanism 6 can spray lubricating oil onto the mold surface. After the forming is completed, the pressure component 3 drives the corresponding mold to move upwards, and the formed fastener is pushed by the ejection mechanism 6 and ejected from the mold on the positioning component 4.

[0024] A collection trough 52 is provided on the outside of the fixed platform 1. An inclined push plate 54 is fixedly connected to the top of the collection trough 52 on the outside of the fixed platform 1. A discharge port 53 is provided on the outside of the collection trough 52.

[0025] After the ejection mechanism 6 ejects the formed fastener from the mold, the high-torque motor 56 drives the fixed platform 1 to rotate, causing the formed fastener to slide out of the mold. The fastener slides on the top of the fixed platform 1 to the positioning member 4, which further pushes the formed fastener, causing it to slide into the collection tank 52 under the action of centrifugal force. During the rotation of the fixed platform 1, the inclined push plate 54 will rotate simultaneously. The inclined push plate 54 will push the fastener in the collection tank 52, so that when the fastener passes through the discharge port 53, it will be pushed into the discharge port 53 under the action of centrifugal force, which is convenient for collecting the formed fastener. This facilitates the quick demolding of the formed fastener and centralized collection, and also facilitates the input of new metal material for a new round of forming processing.

[0026] The bottom of the collection tank 52 is a filter structure. The top of the collection tank 52 is fixedly connected to the bottom of the inclined push plate 54 with an inclined pad 55. The bottom of the inclined pad 55 is fixedly connected to a baffle plate 57. The baffle plate 57 is used to guide the lubricating oil passing through the collection tank 52 and prevent the lubricating oil from splashing everywhere after passing through the collection tank 52.

[0027] As the fastener falls into the collection groove 52, during the process of the inclined push plate 54 pushing the fastener, when the fastener passes the inclined pad 55, it will be pushed up by the inclined surface of the inclined pad 55. After passing the inclined pad 55, the fastener will fall back into the top of the collection groove 52, causing the fastener to vibrate inside the collection groove 52. This causes the excess lubricating oil on the surface of the fastener to be shaken off, allowing the lubricating oil to flow through the collection groove 52 to the baffle plate 57. At the same time, the inclined push plate 54 is an inclined plate structure, which will simultaneously push the airflow when pushing the fastener, accelerating the lubricating oil at the top of the collection groove 52 to pass through the top of the collection groove 52.

[0028] Example 2: Please refer to Figure 1-10 Based on Embodiment 1, the present invention provides a technical solution: During the cold heading process, spraying lubricating oil into the mold can reduce mold wear and provide cooling. Excessive lubricating oil will cause it to accumulate inside the mold, affecting the extrusion process. Controlling the supply of lubricating oil during a single cold heading process can prevent excessive accumulation of lubricating oil inside the mold.

[0029] The ejection mechanism 6 includes a fixed plate 63, which is fixedly connected to the bottom of the positioning member 4. A hollow ejector rod 61 is movably connected inside the fixed plate 63. An ejection spring 62 is fixedly connected to the outer wall of the hollow ejector rod 61. The ejection spring 62 is fixedly connected to the top of the fixed plate 63.

[0030] After molding is completed, when the pressure component 3 moves the mold upward, the top of the molded fastener loses pressure, and the ejector spring 62 will reset and push the hollow ejector rod 61 upward, ejecting the molded fastener from the mold.

[0031] A fixed chamber 64 is fixedly connected to the bottom of the fixed plate 63, and a suction pipe 67 is fixedly connected to the bottom of the fixed chamber 64. An oil passage 69 is fixedly connected to the outside of the rotating table 58. The suction pipe 67 is located inside the oil passage 69, and the baffle plate 57 is fixedly connected to the oil passage 69.

[0032] The bottom of the hollow push rod 61 is fixedly connected to the inner chamber 65 inside the fixed chamber 64. The bottom of the inner chamber 65 is provided with an opening. The inner plug plate 66 is movably connected to the top of the corresponding opening inside the inner chamber 65. The outer plug plate 68 is movably connected to the top of the suction pipe 67 inside the fixed chamber 64. When the oil pressure inside the inner chamber 65 increases, the outer plug plate 68 will block the connection between the fixed chamber 64 and the suction pipe 67 under the push of the oil pressure. When the oil pressure inside the inner chamber 65 decreases, the outer plug plate 68 will be pushed open under the push of the external oil pressure, so that the external lubricating oil can enter the interior of the fixed chamber 64 through the suction pipe 67.

[0033] The hollow top rod 61 has a channel inside, which is connected to the interior of the inner compartment 65. The outer wall of the hollow top rod 61 is provided with an oil drain hole 610 near the top of the hollow top rod 61.

[0034] During the cold forging process of the mold pushed by the pressure component 3, the metal part is pushed downwards, which further pushes the hollow ejector rod 61 downwards, compressing the ejector spring 62. The hollow ejector rod 61 gradually penetrates into the fixed chamber 64, squeezing the lubricating oil inside the fixed chamber 64 and forcing it into the inner chamber 65. The lubricating oil pushes open the inner plug plate 66 and enters the inner chamber 65 through the opening at the bottom of the inner chamber 65. The lubricating oil is then sprayed out through the channel inside the hollow ejector rod 61 from the oil drain hole 610. After entering the mold and completing the molding process, the hollow ejector rod 61 moves upward under the push of the ejector spring 62. This causes the hollow ejector rod 61 to move upward inside the fixed chamber 64, resulting in an increase in the internal space of the fixed chamber 64 and a decrease in the internal oil pressure. Under the pressure, the inner plug plate 66 will fit into the corresponding notch. At this time, the decrease in the internal oil pressure of the fixed chamber 64 will cause the lubricating oil inside the oil channel 69 to push open the outer plug plate 68 through the suction pipe 67 and enter the fixed chamber 64 to replenish the lubricating oil inside the fixed chamber 64, so that the lubricating oil can be continuously discharged from the oil drain hole 610.

[0035] In addition, lubricating oil will adhere to the surface of the fastener after it is formed. The fastener is pushed and shaken at the top of the collection groove 52, which allows excess lubricating oil on the surface of the fastener to fall through the collection groove 52 into the oil passage groove 69, which facilitates the recycling of excess lubricating oil and improves the utilization rate of lubricating oil during the cold heading process.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cold heading apparatus for fastener production, comprising a fixed table (1), characterized in that: The fixed platform (1) is fixedly connected to a positioning component (4), the fixed platform (1) is fixedly connected to a fixed frame (2) at the top, the fixed frame (2) is fixedly connected to a pressure component (3) at the bottom of the fixed frame (2) at the corresponding position on the top of the positioning component (4), the fixed platform (1) is movably connected to a discharge mechanism (5), and the positioning component (4) is fixedly connected to a push-out mechanism (6). The discharge mechanism (5) includes: A rotating platform (58) is movably connected to the bottom of a fixed platform (1); A high-torque motor (56) is fixedly connected inside the rotating platform (58), and the top output shaft of the high-torque motor (56) passes through the rotating platform (58) and is fixedly connected to the bottom of the fixed platform (1). Guide plate (51), which is fixedly connected to the top of positioning member (4).

2. The cold heading device for fastener production according to claim 1, characterized in that: The bottom of the pressure-applying component (3) is used to fix the cold heading mold, and the interior of the positioning component (4) is located at the corresponding position at the bottom of the pressure-applying component (3) to fix the cold heading mold.

3. A cold heading device for fastener production according to claim 1, characterized in that: A collection trough (52) is provided on the outside of the fixed platform (1), and an inclined push plate (54) is fixedly connected to the top of the collection trough (52) on the outside of the fixed platform (1). An outlet (53) is provided on the outside of the collection trough (52).

4. A cold heading device for fastener production according to claim 3, characterized in that: The bottom of the collection tank (52) is a filter structure, and the top of the collection tank (52) is fixedly connected to the bottom of the inclined push plate (54) with an inclined pad (55). The bottom of the inclined pad (55) is fixedly connected to a baffle plate (57).

5. A cold heading apparatus for fastener production according to claim 1, characterized in that: The ejection mechanism (6) includes a fixed plate (63), which is fixedly connected to the bottom of the positioning member (4). A hollow ejector rod (61) is movably connected inside the fixed plate (63), and an ejection spring (62) is fixedly connected to the outer wall of the hollow ejector rod (61). The ejection spring (62) is fixedly connected to the top of the fixed plate (63).

6. A cold heading apparatus for fastener production according to claim 5, characterized in that: The bottom of the fixed plate (63) is fixedly connected to a fixed chamber (64), the bottom of the fixed chamber (64) is fixedly connected to a suction pipe (67), the outside of the rotating table (58) is fixedly connected to an oil passage groove (69), and the suction pipe (67) is located inside the oil passage groove (69).

7. A cold heading apparatus for fastener production according to claim 6, characterized in that: The hollow top rod (61) is fixedly connected to the inner chamber (65) inside the fixed chamber (64). The bottom of the inner chamber (65) is provided with an opening. The inner plug plate (66) is movably connected to the top of the corresponding opening inside the inner chamber (65). The outer plug plate (68) is movably connected to the top of the suction pipe (67) inside the fixed chamber (64).

8. A cold heading apparatus for fastener production according to claim 7, characterized in that: The hollow top rod (61) has a channel inside, and the channel is connected to the interior of the inner compartment (65). The outer wall of the hollow top rod (61) is provided with an oil drain hole (610) near the top of the hollow top rod (61).

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