Cold header for fastener production

Abstract

The utility model relates to the technical field of fastener production, and provides a cold header for fastener production, which comprises a frame, a stamping head and a stamping die, the stamping head and the stamping die are respectively slidably arranged at two ends of the frame, the stamping die is used for placing blanks and provided with an inner cavity, the frame is provided with an accommodating groove, and the accommodating groove is positioned below the stamping head and the stamping die. The accommodating groove is used for accommodating the molded and demolded fastener; the moving seat is arranged in the inner cavity in a sliding mode, the moving seat is used for placing a blank body, and after the moving seat slides, the moving seat is used for separating a formed fastener from the stamping die; the ejection plate is arranged in the containing groove in a sliding mode, and after the ejection plate slides, the ejection plate is used for ejecting the formed fastener to the outside. By means of the technical scheme, the problems that in the prior art, a formed nut needs to be taken out of a stamping female die manually, taking is inconvenient, high potential safety hazards exist, and the continuity of cold heading machining is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fastener production, and in particular to a cold heading machine for fastener production. Background Art

[0002] Cold heading machine for fastener production is a highly efficient production equipment designed for manufacturing various fasteners, such as screws, bolts, nuts, pins, rivets, washers, and stud pins. Cold heading forging technology is a technology that forms the desired shape by plastic deformation of metal materials at room temperature, without the need for smelting heat treatment, saving energy and maintaining the original mechanical properties of the metal.

[0003] Patent document No. CN214720236U discloses a multi-station automatic nut cold heading machine, which realizes the continuous processing of the nut cold heading machine's material collection, material unloading, and stamping process through the linkage of the punch head and the feeding plate. However, in actual use, the multi-station automatic nut cold heading machine disclosed by patent document No. CN214720236U still requires the operator to manually remove the formed nuts from the stamping die, which is inconvenient to take and has a high safety hazard, and also affects the continuity of the cold heading process. Utility Model Content

[0004] The utility model provides a cold heading machine for fastener production, which solves the problem in the related art that the formed nut needs to be taken out from the stamping die by manpower, which is inconvenient and has high safety hazards, and also affects the continuity of the cold heading process.

[0005] The technical solution of the utility model is as follows:

[0006] A cold heading machine for fastener production, comprising a frame and a punch head and a punch die respectively slidably arranged at two ends of the frame, the punch die is used to place a blank, the punch die has an inner cavity, the frame has a receiving groove, the receiving groove is located below the punch head and the punch die, and the receiving groove is used to receive the fastener after molding and demolding; and further comprising:

[0007] A movable seat is slidably disposed in the inner cavity, the movable seat is used to place the blank, and after the movable seat slides, it is used to separate the formed fastener from the stamping die;

[0008] An ejection plate is slidably arranged in the receiving groove, and after the ejection plate slides, it is used to eject the formed fastener to the outside.

[0009] Optionally, it also includes:

[0010] There are two moving blocks, which are slidably arranged at the two ends of the frame respectively, one of the moving blocks is provided with the punching head, and the other moving block is provided with the punching die, and the punching head and the punching die are slidably connected to the frame through the moving blocks.

[0011] Optionally, it also includes:

[0012] A first elastic member, two ends of which act on the receiving slot and the ejection plate respectively, and the first elastic member is used to provide a force for the ejection plate to move away from the receiving slot;

[0013] A pull rope, one end of which is arranged on the ejection plate, and the other end of which passes through the receiving slot and extends to the outside of the frame, and the pull rope is used to drive the ejection plate to move.

[0014] Optionally, it also includes:

[0015] The second elastic member is arranged in the inner cavity, and two ends of the second elastic member act on the inner wall of the inner cavity and the movable seat respectively. The second elastic member is used to provide a force for the movable seat to approach the punching head.

[0016] Optionally, it also includes:

[0017] The third elastic member has a plurality of third elastic members, which are arranged in an array on the two moving blocks. The two ends of the third elastic member are respectively used on the frame and the moving block. The third elastic member is used to provide a force to move the two moving blocks away from each other.

[0018] Optionally, it also includes:

[0019] There are two racks, and the two racks are respectively arranged on the two moving blocks;

[0020] There are two toothless gears, which are rotatably arranged at two ends of the frame and located outside the accommodating groove. The toothless gears are meshed and connected with the rack.

[0021] Optionally, the frame further comprises a material guide portion, the material guide portion being communicated with the containing groove; and further comprising:

[0022] A water tank is arranged at one end of the frame and is communicated with the material guiding part. The water tank is used for cleaning the fasteners after forming.

[0023] Optionally, it also includes:

[0024] A sieve plate, arranged in the water tank;

[0025] The impeller is rotatably arranged in the water tank and is located below the screen plate.

[0026] Optionally, it also includes:

[0027] A centrifugal filter cartridge is arranged beside the water tank and is in communication with the water tank;

[0028] A push plate is slidably arranged in the water tank and is located above the screen plate. The push plate is used to push the cleaned fasteners into the centrifugal filter cartridge.

[0029] Optionally, the centrifugal filter cartridge has a discharge port and a debris discharge port, the discharge port is used for the dried fasteners, and the debris discharge port is used for discharging moisture; and further comprises:

[0030] An oil-water separator is arranged beside the centrifugal filter cartridge and is connected to the impurity discharge port;

[0031] A connecting pipe, both ends of which are connected to the water tank and the oil-water separator respectively.

[0032] The working principle and beneficial effects of the utility model are:

[0033] In the utility model, before processing the fastener, the operator needs to place the blank on the mounting seat, and then the operator slides the punch head and the punch die to make the punch head and the punch die close to each other. When the punch head and the punch die are in contact, the blank is formed in the inner cavity of the punch die. When the punch head and the punch die are in contact, the mounting seat is subjected to pressure from the punch head, and the mounting seat moves toward the end away from the punch head. After the forming is completed, the operator slides the punch head and the punch die to make the punch head and the punch die move away from each other. At this time, the mounting seat loses the pressure from the punch head, and the mounting seat moves toward the end close to the punch head, so that the formed blank, that is, the formed fastener, is separated from the inner cavity and falls into the mounting groove on the frame. Then the operator can slide the ejection plate to eject the fastener formed in the ejection plate receiving groove to the outside. In summary, the cold heading machine can continuously perform forming, demoulding and collection. When the punch head and the punch die are separated, demoulding can be completed. There is no need for the operator to remove the formed fasteners from the punch die manually, which improves the installability of the cold heading machine and ensures the continuity of the cold heading machine during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0035] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0036] Figure 2 It is a right view structural schematic diagram of the utility model;

[0037] Figure 3 for Figure 2 AA-direction cross-sectional structural diagram;

[0038] Figure 4 for Figure 3 Schematic diagram of the structure in CC section;

[0039] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at position I in the middle;

[0040] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0041] Figure 7 for Figure 4 Schematic diagram of the local enlarged structure at II in the middle.

[0042] In the figure: 1, frame; 101, receiving groove; 102, material guide part; 2, punch head; 3, punching die; 301, inner cavity; 4, moving seat; 5, ejection plate; 6, moving block; 7, first elastic member; 8, pull rope; 9, second elastic member; 10, third elastic member; 11, rack; 12, toothless gear; 13, water tank; 14, sieve plate; 15, impeller; 16, centrifugal filter cartridge; 1601, discharge port; 1602, debris discharge port; 17, push plate; 18, oil-water separator; 19, connecting pipe; 20, screw; 21, driving member; 22, first one-way valve; 23, second one-way valve; 24, third one-way valve. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0044] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0045] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0046] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0047] like Figure 1 to Figure 7 As shown, this embodiment proposes a cold heading machine for fastener production, including: a frame 1 and a punch head 2 and a punch die 3 respectively slidably arranged at both ends of the frame 1, the punch die 3 is used to place the blank, the punch die 3 has an inner cavity 301, the frame 1 has a receiving groove 101, the receiving groove 101 is located below the punch head 2 and the punch die 3, and the receiving groove 101 is used to accommodate the fastener after molding and demolding; it also includes: a movable seat 4 slidably arranged in the inner cavity 301, the movable seat 4 is used to place the blank, and after the movable seat 4 slides, it is used to separate the formed fastener from the punch die 3; an ejection plate 5 is slidably arranged in the receiving groove 101, and after the ejection plate 5 slides, it is used to eject the formed fastener to the outside.

[0048] In this embodiment, the frame 1 is the core component of the cold heading machine as the overall supporting structure of the cold heading machine, which can ensure the structural stability of the cold heading machine. The punch head 2 and the punch die 3 are respectively slidably arranged at the two ends of the length direction of the frame 1 relative to the frame 1. When the operator needs to produce fasteners, the blank can be placed in the punch die 3, and then the punch head 2 and the punch die 3 are slid. At this time, the punch head 2 and the punch die 3 are close to each other. When the punch head 2 and the punch die 3 are in contact with each other, the blank in the punch die 3 is formed, and then the operator can slide the punch head 2 and the punch die 3 again to separate the punch head 2 and the punch die 3. Then the operator can take the formed blank out of the punch die 3 by manpower or using an adapted tool, and then the operator can punch the formed blank. It should be noted that the punch die 3 has a variety of shapes, and the inner cavity 301 of each punch die 3 has different shapes to adapt to the production of fasteners with different shapes. Since taking out the blank formed in the stamping die 3 by manpower may cause harm to the human body, there is a high safety hazard; and using tools to take out the formed blank from the stamping die 3 affects the continuity of fastener production and is not conducive to continuous production. Therefore, a movable seat 4 is slidably set in the inner cavity 301 of the stamping die 3. Before production, the operator can place the blank on the movable seat 4. When the stamping head 2 and the stamping die 3 are in contact, the movable seat 4 moves toward the end away from the stamping head 2; when the stamping head 2 and the stamping die 3 are separated, the movable seat 4 will slide toward the end close to the stamping head 2, and the blank formed in the inner cavity 301 will be ejected from the inner cavity 301, thereby realizing automatic demolding. Compared with taking out the blank formed in the inner cavity 301 by manpower, it is more installable; compared with using suitable tools to take out the blank formed in the inner cavity 301, it is more continuous, so that molding and demolding are carried out continuously. After demoulding, the blank will fall into the receiving groove 101 on the frame 1. The operator can slide the ejection plate 5 along the length direction of the receiving groove 101 to eject the formed fasteners from the receiving groove 101 to the outside, reducing the possibility of direct contact between the operator and the formed fasteners, and has higher safety. When a batch of formed fasteners is ejected from the receiving groove 101, another batch of formed fasteners falls into the receiving groove 101, reducing the possibility of blockage in the receiving groove 101 and meeting continuous production.

[0049] Optionally, it also includes: there are two moving blocks 6, the two moving blocks 6 are slidably set at the two ends of the frame 1, one of the moving blocks 6 is provided with a punching head 2, and the other moving block 6 is provided with a punching die 3, and the punching head 2 and the punching die 3 are slidably connected to the frame 1 through the moving blocks 6.

[0050] In this embodiment, the two moving blocks 6 are respectively slidably set at the two ends of the length direction of the frame 1, and the two moving blocks 6 are symmetrically set. One of the moving blocks 6 is provided with a punching head 2, and the other moving block 6 is provided with a punching die 3. The operator can slide the two moving blocks 6 to make the two moving blocks 6 approach each other or move away from each other, so that the punching head 2 and the punching die 3 are close to each other for punching, or move the punching head 2 and the punching die 3 away from each other for demolding.

[0051] Optionally, it also includes: two ends of the first elastic member 7 act on the accommodating slot 101 and the ejection plate 5 respectively, and the first elastic member 7 is used to provide a force to move the ejection plate 5 away from the accommodating slot 101; one end of the pull rope 8 is set on the ejection plate 5, and the other end passes through the accommodating slot 101 and extends to the outside of the frame 1, and the pull rope 8 is used to drive the ejection plate 5 to move.

[0052] like Figure 6 As shown, in the present embodiment, before producing fasteners, the operator can manually pull the pull rope 8 to move the ejection plate 5 to the left. At this time, the first elastic member 7 is subjected to external tension and is compressed. After a batch of molded fasteners are demolded, the operator needs to loosen the pull rope 8. At this time, the first elastic member 7 loses the external tension and is reset, thereby ejecting the ejection plate 5 to the right and ejecting the fasteners formed in the receiving groove 101 from the receiving groove 101 to the outside, thereby improving the degree of automation of the present cold heading machine, and eliminating the need for the operator to remove the fasteners formed in the receiving groove 101 by manpower or tools, thereby improving the continuity of the operation of the present cold heading machine.

[0053] Optionally, it also includes: a second elastic member 9 is arranged in the inner cavity 301 , and two ends of the second elastic member 9 act on the inner wall of the inner cavity 301 and the movable seat 4 respectively, and the second elastic member 9 is used to provide a force for the movable seat 4 to approach the punching head 2 .

[0054] like Figure 4~Figure 5 As shown, in this embodiment, when the punch head 2 and the stamping die 3 are in contact, the blank is formed. At this time, the second elastic member 9 is compressed by the pressure to the right from the punch head 2, and the blank is located in the inner cavity 301 of the stamping die 3; when the punch head 2 and the stamping die 3 are separated, the second elastic member 9 loses the pressure from the punch head 2, the elastic member is reset, and the mounting seat moves to the left, driving the blank to move to the left. When the second elastic member 9 is completely reset, the blank is separated from the mounting seat, and the blank falls off from the inner cavity 301 of the stamping die 3 and falls into the receiving groove 101. At this time, the operator can proceed to the next step.

[0055] Optionally, it also includes: there are a plurality of third elastic members 10, and the plurality of third elastic members 10 are arranged in an array on the two moving blocks 6, and the two ends of the third elastic member 10 are used on the frame 1 and the moving block 6 respectively, and the third elastic member 10 is used to provide a force to move the two moving blocks 6 away from each other.

[0056] Optionally, it also includes: two racks 11, which are respectively arranged on two moving blocks 6; two toothless gears 12, which are respectively rotatably arranged at both ends of the frame 1 and located outside the accommodating groove 101, and the toothless gears 12 are meshed and connected with the racks 11.

[0057] In this embodiment, the operator can rotate the two toothless gears 12 clockwise to move the two racks 11 closer to each other, move the two moving blocks 6 closer to each other, and move the punch head 2 and the punching die 3 closer to each other to perform the punching process, at which time the plurality of third elastic members 10 are all in a compressed state. When the tooth pressure of the toothless gear 12 is disengaged from the rack 11, the plurality of third elastic members 10 lose pressure and reset, and the two moving blocks 6 move away from each other, driving the punch head 2 and the punching die 3 to move away from each other, and performing the demoulding process.

[0058] Optionally, the frame 1 further comprises a material guide portion 102, which is connected to the receiving groove 101; and further comprises: a water tank 13 is arranged at one end of the frame 1 and is connected to the material guide portion 102, and the water tank 13 is used to clean the molded fasteners.

[0059] In this embodiment, the ejection plate 5 can push the fasteners formed in the receiving groove 101 into the guide part 102, and the guide part 102 is an inclined slide rail. The formed fasteners pass through the guide part 102 and enter the water tank 13. The water tank 13 is filled with a cleaning liquid for cleaning the oil on the outer surface of the fasteners after forming.

[0060] Optionally, the method further includes: a sieve plate 14 is disposed in the water tank 13 ; and an impeller 15 is rotatably disposed in the water tank 13 and is located below the sieve plate 14 .

[0061] In this embodiment, the operator can operate the impeller 15 to cause the cleaning liquid in the water tank 13 to tumble, thereby better cleaning the molded fasteners in the water tank 13. The sieve plate 14 is used to isolate the molded fasteners and the impeller 15, reducing the collision between the impeller 15 and the molded fasteners, thereby protecting both the molded fasteners and the impeller 15.

[0062] Optionally, it also includes: a centrifugal filter cartridge 16 is arranged beside the water tank 13 and is connected to the water tank 13; a push plate 17 is slidably arranged in the water tank 13 and is located above the sieve plate 14, and the push plate 17 is used to push the cleaned fasteners into the centrifugal filter cartridge 16.

[0063] like Figure 3As shown, in this embodiment, the operator can slide the push plate 17 along the length direction of the water tank 13 to push the cleaned fasteners on the screen plate 14 into the centrifugal filter cartridge 16, and then the operator operates the centrifugal filter cartridge 16, and the centrifugal filter cartridge 16 can separate the cleaned fasteners from the water and oil on the surface thereof by centrifugal action. The design form can be increased, the screw 20 is rotatably arranged in the water tank 13, the push plate 17 is threadedly matched with the screw 20, and the driving member 21 is arranged on the water tank 13 for driving the screw 20 to rotate. The operator can operate the driving member 21 to rotate the screw, so that the push plate 17 slides along the length direction of the water tank 13, and pushes the cleaned fasteners on the screen plate 14 into the centrifugal filter cartridge 16.

[0064] Optionally, the centrifugal filter cartridge 16 has a discharge port 1601 and a debris discharge port 1602, the discharge port 1601 is used for the dried fasteners, and the debris discharge port 1602 is used to discharge moisture; it also includes: an oil-water separator 18 is arranged next to the centrifugal filter cartridge 16 and is connected to the debris discharge port 1602; both ends of the connecting pipe 19 are respectively connected to the water tank 13 and the oil-water separator 18.

[0065] In this embodiment, after the centrifugal filter 16 separates the cleaned fasteners from the water and oil on their surfaces, the water and oil enter the oil-water separator 18 through the impurity discharge port 1602. After separation in the oil-water separator 18, the water enters the connecting pipe 19 through one end of the oil-water separator and then flows into the water tank 13. The oil flows out from the other end of the oil-water separator 18 to the outside. The operator can collect and reuse it, saving energy. The fasteners will be discharged to the outside from the discharge port 1601. It should be noted that, in order to reduce the backflow of water and oil, a first one-way valve 22 is arranged on the impurity discharge port 1602, the first one-way valve 22 connects the impurity discharge port 1602 and the oil-water separator 18, and the flow direction of the first one-way valve points to the oil-water separator 18; at the same time, in order to reduce the backflow of water, a second one-way valve 23 is arranged at one end of the oil-water separator 18, and the second one-way valve 23 points to the connecting pipe 19; in order to reduce the backflow of oil, a third one-way valve 24 is arranged at the other end of the oil-water separator 18, and the third one-way valve 24 points to the outside.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cold heading machine for fastener production, comprising a frame (1) and a punch head (2) and a punch die (3) respectively slidably arranged at two ends of the frame (1), wherein the punch die (3) is used to place a blank, characterized in that: The punching die (3) has an inner cavity (301), the frame (1) has a receiving groove (101), the receiving groove (101) is located below the punching head (2) and the punching die (3), and the receiving groove (101) is used to receive the fastener after molding and demolding; and further comprises: A movable seat (4) is slidably disposed in the inner cavity (301), the movable seat (4) being used to place the blank, and after the movable seat (4) slides, being used to separate the formed fastener from the stamping die (3); An ejection plate (5) is slidably disposed in the receiving groove (101); after the ejection plate (5) slides, it is used to eject the formed fastener to the outside.

2. A cold heading machine for fastener production according to claim 1, characterized in that: Also includes: The movable blocks (6) are provided with two movable blocks (6), which are respectively slidably arranged at the two ends of the frame (1), one of the movable blocks (6) is provided with the punching head (2), and the other movable block (6) is provided with the punching die (3), and the punching head (2) and the punching die (3) are slidably connected to the frame (1) via the movable blocks (6).

3. A cold heading machine for fastener production according to claim 1, characterized in that: Also includes: A first elastic member (7), two ends of which act on the receiving groove (101) and the ejection plate (5) respectively, and the first elastic member (7) is used to provide a force for the ejection plate (5) to move away from the receiving groove (101); A pull rope (8) has one end arranged on the ejection plate (5) and the other end extending through the receiving groove (101) to the outside of the frame (1), and the pull rope (8) is used to drive the ejection plate (5) to move.

4. A cold heading machine for fastener production according to claim 3, characterized in that: Also includes: The second elastic member (9) is arranged in the inner cavity (301), and the two ends of the second elastic member (9) act on the inner wall of the inner cavity (301) and the movable seat (4) respectively. The second elastic member (9) is used to provide a force for the movable seat (4) to approach the punching head (2).

5. A cold heading machine for fastener production according to claim 2, characterized in that: Also includes: The third elastic member (10) comprises a plurality of third elastic members (10), which are arranged in an array on the two moving blocks (6). The two ends of the third elastic member (10) are respectively used on the frame (1) and the moving block (6). The third elastic member (10) is used to provide a force to move the two moving blocks (6) away from each other.

6. A cold heading machine for fastener production according to claim 5, characterized in that: Also includes: There are two racks (11), and the two racks (11) are respectively arranged on the two moving blocks (6); The two toothless gears (12) are rotatably arranged at the two ends of the frame (1) and are located outside the accommodating groove (101). The toothless gears (12) are meshingly connected with the rack (11).

7. A cold heading machine for fastener production according to claim 3, characterized in that: The frame (1) further comprises a material guide portion (102), wherein the material guide portion (102) is in communication with the containing groove (101); and further comprises: A water tank (13) is arranged at one end of the frame (1) and is connected to the material guiding portion (102). The water tank (13) is used to clean the fasteners after molding.

8. A cold heading machine for fastener production according to claim 7, characterized in that: Also includes: A sieve plate (14) is arranged in the water tank (13); An impeller (15) is rotatably disposed in the water box (13) and is located below the screen plate (14).

9. A cold heading machine for fastener production according to claim 8, characterized in that: Also includes: A centrifugal filter cartridge (16) is arranged beside the water tank (13) and is in communication with the water tank (13); A push plate (17) is slidably disposed in the water tank (13) and is located above the sieve plate (14). The push plate (17) is used to push the cleaned fastener into the centrifugal filter cartridge (16).

10. A cold heading machine for fastener production according to claim 9, characterized in that: The centrifugal filter cartridge (16) has a discharge port (1601) and a debris discharge port (1602), wherein the discharge port (1601) is used to discharge the dried fasteners, and the debris discharge port (1602) is used to discharge moisture; and further comprises: An oil-water separator (18) is arranged beside the centrifugal filter cartridge (16) and is in communication with the impurity discharge port (1602); A connecting pipe (19) has two ends respectively connected to the water tank (13) and the oil-water separator (18).

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