Multi-station automatic cold heading machine

Abstract

The present invention relates to the technical field of cold heading equipment, and specifically to a multi-station automatic cold heading forming machine, which includes a base, a movable mold and a closing mold evenly installed on the inner bottom surface of the base for use, an air pump arranged on the inner bottom surface of the base close to the closing mold side, and a placement groove opened on the closing mold working surface. It also includes a demolding component arranged on the inner bottom surface of the base close to the closing mold position, which is used for workpiece demolding. During use, the present invention first adds a demolding agent to the inner surface of the placement groove to facilitate the demolding of the workpiece inside the placement groove. At the same time, the workpiece is impacted by a push rod, which further facilitates the demolding of the workpiece inside the placement groove. At the same time, the impact size of the push rod on the workpiece can be changed according to different conditions, further improving the versatility when performing impact demolding work, and can better adapt to the demolding of different workpieces.

Description

Technical Field

[0001] The invention relates to the technical field of cold heading equipment, in particular to a multi-station automatic cold heading forming machine. Background Art

[0002] Cold heading machines are specialized equipment used for batch production of nuts, bolts and other fasteners. They usually form cylindrical blanks into the shape of nuts or other parts by opening and closing the mold.

[0003] Since the parts processed by the cold heading machine do not need to be heated, they will deform rapidly when forming the shape. In the production process, after the parts are formed, components such as robots will be used to clamp the parts out. However, since the parts deform rapidly at low temperatures, the tail end of the part is prone to breakage in the mold, and the part will stick to the mold. The robot can only clamp part of the end of the part, and under the influence of cold heading oil, the part is difficult to remove, which will affect the subsequent work process. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a multi-station automatic cold heading forming machine, which can effectively solve the problem of difficulty in removing parts completed by cold heading in the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a multi-station automatic cold heading forming machine, comprising a base, a movable mold and a closing mold evenly installed on the inner bottom surface of the base for use in combination, an air pump arranged on the inner bottom surface of the base close to the closing mold, and a placement groove opened on the closing mold working surface, and also comprising a demolding assembly arranged on the inner bottom surface of the base close to the closing mold position for demolding the workpiece, the output pipe of the air pump is connected with an air vent pipe through it, the demolding assembly comprises a push rod slidably connected to the inner bottom surface of the placement groove, the push rod extends to the outside of the closing mold away from the placement groove and is connected to a connecting rod, an auxiliary assembly is provided between the push rod and the connecting rod for adding a release agent to the side of the placement groove, the inner top surface of the base is connected to a first shell near the connecting rod, the interior of the first shell is provided with a movable groove, the connecting rod extends to the interior of the movable groove away from the push rod and is fixedly connected to the first shell. Three magnets, the side of the third magnet away from the connecting rod is connected to the first piston rod, the inner side of the movable groove close to the connecting rod and the two sides of the connecting rod are hinged with adjustment plates through hinges, the two sides of the adjustment plates close to each other are fixedly connected with evenly distributed electromagnets, and the middle parts of the sides of the two adjustment plates away from each other are provided with adjustment components, the inner side of the movable groove away from the connecting rod corresponds to the position of the first piston rod and is connected to the piston cylinder, the first piston rod extends to the interior of the piston cylinder at one end away from the connecting rod, the first piston rod and the piston cylinder are elastically slidably connected, the annular inner side of the piston cylinder is connected to a first connecting pipe near the upper part, the end of the first connecting pipe away from the piston cylinder passes through the first shell and extends to a position close to the air pump, and is connected to the output pipe of the air pump, the first connecting pipe includes a first pipeline and a first control valve.

[0007] Furthermore, the adjustment assembly includes connecting tubes symmetrically connected to the side surfaces of the movable groove on both sides, the connecting tube is elastically connected to the second piston rod on the side away from the adjustment plate, the second piston rod extends from one end of the first shell to a position close to the adjustment plate, and is hinged to a slider through a hinge, the adjustment plate is provided with a sliding groove on the side close to the slider, the slider is slidably connected to the sliding groove, a sixth connecting pipe is provided at a position of the connecting tube away from the adjustment plate, the sixth connecting pipe includes a second pipeline and a second control valve, the sixth connecting pipe extends from one end of the connecting tube to a position close to the air pump, and is communicated with the output end of the air pump.

[0008] The cam is connected to the first end of the support frame, and the cam is connected to the first support frame by a threaded connection to the first support frame, and the cam is connected to the first support frame by a threaded connection to the first support frame.

[0009] Furthermore, the inner diameter of the liquid outlet gradually decreases toward the inner annular surface of the placement groove.

[0010] Furthermore, the auxiliary component also includes a second shell fixedly connected to the side of the first shell close to the mounting cylinder, the second shell is elastically connected to the side close to the first shell with a third extrusion plate, and the second shell is connected to the side away from the mounting cylinder close to the third extrusion plate with a fifth connecting pipe passing through, and the fifth connecting pipe includes a third pipeline and a third control valve.

[0011] Furthermore, the auxiliary component also includes a second magnet elastically connected to the side of the second shell away from the fifth connecting tube, the second magnet is located near the third extrusion plate, and the side of the second shell corresponding to the position of the second magnet is connected with a third connecting tube, and one end of the third connecting tube away from the second magnet extends to the interior of the mounting tube, and the mounting tube and the third extrusion plate are communicated through the third connecting tube, and the inner wall of the mounting tube is connected to the first magnet near the third connecting tube, and the magnetic properties of the adjacent surfaces of the first magnet and the second magnet are the same.

[0012] Furthermore, a fourth connecting tube is connected through the position of the second magnet on the inner side surface of the second shell near the mold closing, and a second connecting groove is opened inside the rotating rod at a position corresponding to the fifth connecting tube. The second shell and the second connecting groove are connected through the fourth connecting tube, and the second connecting groove and the first connecting groove are connected.

[0013] Furthermore, a breathable membrane is connected to the connection between the second connecting groove and the fifth connecting pipe.

[0014] Compared with the known public technologies, the technical solution provided by the present invention has the following beneficial effects:

[0015] During the use of the present invention, a release agent is first added to the inner surface of the placement groove to facilitate the demoulding of the workpiece inside the placement groove. At the same time, the workpiece is impacted by the push rod, which further facilitates the demoulding of the workpiece inside the placement groove. At the same time, the impact size of the push rod on the workpiece can be changed according to different conditions, further improving the versatility of the impact demoulding work and better adapting to the demoulding work of different workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a complete structural diagram of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the connection block between the clamping mold and the movable mold of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the mold clamping part of the present invention;

[0020] Figure 4 This is a structural schematic diagram of the first shell of the present invention;

[0021] Figure 5 This is a structural diagram of the mounting tube of the present invention;

[0022] Figure 6 For the present invention Figure 4 Enlarged view of point A in the middle;

[0023] Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle;

[0024] Figure 8 For the present invention Figure 5 Enlarged view of point C in the middle.

[0025] The numbers in the figure represent: 1, base; 2, movable mold; 3, mold closing; 4, air pump; 5, demoulding assembly; 51, ejector pin; 52, connecting rod; 53, first housing; 54, movable groove; 55, adjustment plate; 56, electromagnet; 57, adjustment assembly; 571, connecting cylinder; 572, second piston rod; 573, slider; 574, slide groove; 575, sixth connecting pipe; 58, piston cylinder; 59, first piston rod; 510, first connecting pipe; 511, third magnet; 6, Placement slot; 7, auxiliary component; 71, installation cylinder; 72, rotating rod; 73, first extrusion plate; 74, second extrusion plate; 75, air bag; 76, liquid adding tube; 77, second connecting tube; 78, first connecting slot; 79, liquid outlet; 710, second shell; 711, third extrusion plate; 712, first magnet; 713, third connecting tube; 714, second magnet; 715, fourth connecting tube; 716, second connecting slot; 717, breathable membrane; 718, fifth connecting tube. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example: Refer to Figures 1 to 8 The multi-station automatic cold heading forming machine includes a base 1, a movable mold 2 and a clamping mold 3 evenly mounted on the inner bottom surface of the base 1 for use, an air pump 4 arranged on the inner bottom surface of the base 1 near the clamping mold 3, and a placement groove 6 opened on the working surface of the clamping mold 3. It is characterized in that it also includes:

[0029] The demoulding assembly 5 is arranged on the inner bottom surface of the base 1 near the mold 3, and is used for demoulding the workpiece. The output pipe of the air pump 4 is connected with an air vent pipe. The demoulding assembly 5 includes a push rod 51 slidably connected to the inner bottom surface of the placement groove 6. The push rod 51 extends to the outside of the mold 3 at one end away from the placement groove 6 and is connected to a connecting rod 52. An auxiliary assembly 7 is provided between the push rod 51 and the connecting rod 52 for adding a demoulding agent to the side of the placement groove 6. A first shell 53 is connected to the position of the inner top surface of the base 1 near the connecting rod 52. A movable groove 54 is provided inside the first shell 53. The end of the connecting rod 52 away from the push rod 51 extends to the inside of the movable groove 54 and is fixedly connected to a third magnet 511. The side of the third magnet 511 away from the connecting rod 52 is connected to the first piston rod 59. The movable groove 54 is close to the inner surface of the connecting rod 52. Both sides of the side surface close to the connecting rod 52 are hinged with adjustment plates 55 through hinges, and the sides of the two adjustment plates 55 close to each other are fixedly connected with evenly distributed electromagnets 56. The middle parts of the sides of the two adjustment plates 55 away from each other are provided with adjustment components 57. The position of the first piston rod 59 corresponding to the inner side surface of the movable groove 54 away from the connecting rod 52 is connected to the piston cylinder 58. The end of the first piston rod 59 away from the connecting rod 52 extends to the inside of the piston cylinder 58. The first piston rod 59 and the piston cylinder 58 are elastically slidably connected. A first connecting pipe 510 is connected to the annular inner side surface of the piston cylinder 58 near the upper part. The end of the first connecting pipe 510 away from the piston cylinder 58 passes through the first housing 53 and extends to a position close to the air pump 4, and is connected to the output pipe of the air pump 4. The first connecting pipe 510 includes a first pipeline and a first control valve.

[0030] The auxiliary component 7 also includes a second shell 710 fixedly connected to the side of the first shell 53 close to the mounting cylinder 71. The second shell 710 is elastically connected to the side of the first shell 53 close to the third extrusion plate 711. The second shell 710 is connected to the side away from the mounting cylinder 71 close to the third extrusion plate 711 through a fifth connecting pipe 718. The fifth connecting pipe 718 includes a third pipeline and a third control valve.

[0031] The auxiliary component 7 also includes a second magnet 714 elastically connected to the side of the second shell 710 away from the fifth connecting tube 718. The second magnet 714 is located near the third extrusion plate 711. The side of the second shell 710 corresponding to the position of the second magnet 714 is penetrated by a third connecting tube 713. One end of the third connecting tube 713 away from the second magnet 714 extends to the interior of the mounting tube 71. The mounting tube 71 and the third extrusion plate 711 are communicated through the third connecting tube 713. The inner wall of the mounting tube 71 is connected to the first magnet 712 near the third connecting tube 713. The magnetic properties of the adjacent surfaces of the first magnet 712 and the second magnet 714 are the same.

[0032] A fourth connecting tube 715 is connected to the inner side surface of the second housing 710 near the clamping mold 3 at a position corresponding to the second magnet 714. A second connecting groove 716 is formed inside the rotating rod 72 at a position corresponding to the fifth connecting tube 718. The second housing 710 and the second connecting groove 716 are connected via the fourth connecting tube 715, and the second connecting groove 716 and the first connecting groove 78 are connected.

[0033] The auxiliary component 7 includes a mounting cylinder 71 connected to the end of the connecting rod 52 away from the first shell 53. The mounting cylinder 71 is rotatably connected to the rotating rod 72 near the middle of the inner side surface of the connecting rod 52. The side of the rotating rod 72 is threadedly connected to the first extrusion plate 73. The first extrusion plate 73 is elastically connected to the mounting cylinder 71. The end of the rotating rod 72 away from the connecting rod 52 extends to a position close to the ejector rod 51 and is fixedly connected to the ejector rod 51. The side of the first extrusion plate 73 is threadedly connected to the second extrusion plate 74 near the position of the mold 3. The second extrusion plate 74 is away from the mounting cylinder 71. An airbag 75 is connected to the side, and the airbag 75 is fixedly connected to the clamping mold 3. A liquid adding pipe 76 is connected to the annular side of the airbag 75 near the clamping mold 3. A first connecting groove 78 is provided inside the placement groove 6. A second connecting pipe 77 is connected to the side of the airbag 75 near the placement groove 6 near the first connecting groove 78. The second connecting pipe 77 includes a fourth pipe and a one-way valve. The airbag 75 is connected to the first connecting groove 78 through the second connecting pipe 77. A uniformly distributed liquid outlet hole 79 is provided on the side of the first connecting groove 78 near the placement groove 6.

[0034] When cold heading is performed, the third control valve and the air pump 4 at the fifth connecting pipe 718 are opened. At this time, the gas generated by the air pump 4 enters the interior of the second shell 710 through the fifth connecting pipe 718, and then enters the interior of the mounting cylinder 71 through the third connecting pipe 713 to squeeze the first extrusion plate 73. The extrusion force causes the first extrusion plate 73 to overcome the elastic force between the first extrusion plate 73 and the mounting cylinder 71 and move toward the placement groove 6 on the side of the rotating rod 72. Since the first extrusion plate 73 is threadedly connected to the rotating rod 72, and the thread groove gap at the connection is large, When the first extrusion plate 73 moves on the side of the rotating rod 72, it drives the rotating rod 72 to rotate. When the rotating rod 72 is forwarded, due to the threaded connection between the second extrusion plate 74 and the rotating rod 72, the rotating rod 72 drives the second extrusion plate 74 to move toward the direction close to the airbag 75, gradually squeezing the airbag 75. The squeezing force causes the release agent inside the airbag 75 to enter the interior of the first connecting groove 78 through the second connecting pipe 77, and then sprayed toward the annular inner surface of the placement groove 6 through the liquid outlet 79, adding a release agent to the annular inner surface of the placement groove 6. After the work is completed, the third control valve at the fifth connecting pipe 718 is closed. At this time, the extrusion force of the gas on the first extrusion plate 73 gradually decreases. Under the elastic force of the first extrusion plate 73 and the mounting cylinder 71 gradually recovering the elastic deformation, the first extrusion plate 73 gradually returns to the initial state on the side of the rotating rod 72. The gas inside the mounting cylinder 71 enters the interior of the second shell 710 through the third connecting pipe 713, extruding the third extrusion plate 711. The extrusion force makes the third extrusion plate 73 return to its initial state on the side of the rotating rod 72. The pressing plate 711 overcomes the elastic force between it and the second shell 710 and moves in the direction away from the third connecting tube 713 to drive the stored gas. It is worth noting that the elastic force between the first squeezing plate 73 and the mounting cylinder 71 is greater than the elastic force between the third squeezing plate 711 and the second shell 710. At the same time, when the first squeezing plate 73 returns to its initial state, the rotating rod 72 drives the second squeezing plate 74 back to its initial state, and the airbag 75 returns to its initial state. The liquid adding tube 76 replenishes the release agent inside the airbag 75, making it convenient to add the release agent next time.

[0035] At the same time, by setting the rotation to add the release agent, the effect of adding the release agent to the inner side of the annular placement groove 6 is ensured, further facilitating the demoulding work;

[0036] At the same time, since the inner diameter of the fifth connecting tube 718 is larger than the inner diameter of the third connecting tube 713, the amount of gas entering the second housing 710 through the fifth connecting tube 718 is greater than the amount of gas discharged from the second housing 710 through the third connecting tube 713. The excess gas entering the second housing 710 exerts a squeezing force on the third squeezing plate 711. The squeezing force causes the third squeezing plate 711 to overcome the elastic force between the third squeezing plate 711 and the second housing 710 and move toward the second magnet 714, thereby achieving the purpose of storing gas.

[0037] The adjustment assembly 57 includes a connecting cylinder 571 symmetrically connected to the side surfaces of the movable groove 54 on both sides. The connecting cylinder 571 is elastically connected to the second piston rod 572 on the side away from the adjustment plate 55. The second piston rod 572 extends from one end of the first shell 53 to a position close to the adjustment plate 55 and is hinged to a slider 573 through a hinge. A sliding groove 574 is provided on the side of the adjustment plate 55 close to the slider 573. The slider 573 is slidably connected to the sliding groove 574. A sixth connecting pipe 575 is provided at a position of the connecting cylinder 571 away from the adjustment plate 55. The sixth connecting pipe 575 includes a second pipeline and a second control valve. The end of the sixth connecting pipe 575 away from the connecting cylinder 571 extends to a position close to the air pump 4 and is connected to the output end of the air pump 4.

[0038] When the above work is completed, the first control valve and the air pump 4 at the first connecting pipe 510 are opened. At this time, the gas generated by the air pump 4 enters the interior of the piston cylinder 58 through the first connecting pipe 510 to squeeze the first piston rod 59. The squeezing force causes the first piston rod 59 to overcome the elastic force between the piston cylinder 58 and drive the connecting rod 52, the mounting cylinder 71 and the push rod 51 to move away from the placement groove 6, so that the push rod 51 leaves the interior of the placement groove 6, which facilitates the workpiece placement. At the same time, the second control valve at the sixth connecting pipe 575 is opened. At this time, the gas generated by the air pump 4 enters the interior of the connecting cylinder 571 through the sixth connecting pipe 575 to squeeze the second piston rod 572. The squeezing force causes the second piston rod 572 to drive the slider 573 and the adjustment plate 55 away The sixth connecting tube 575 moves in the direction of the sixth connecting tube 575, causing the adjustment plate 55 to deflect in the direction close to the connecting rod 52, until the angle between the two adjustment plates 55 decreases to the angle close to the piston cylinder 58, and the electromagnet 56 is energized. The electromagnet 56 generates a magnetic force after being energized. When the first piston rod 59 drives the third magnet 511 to move in the direction close to the first piston rod 59, the third magnet 511 drives the connecting rod 52 to move in the gradually increasing magnetic field. The gradually increasing magnetic field will generate a gradually increasing magnetic attraction force on the third magnet 511, thereby accelerating the work of the third magnet 511 driving the connecting rod 52 to move in the direction of the first piston rod 59, thereby further accelerating the work of the connecting rod 52 driving the ejector rod 51 to separate from the placement groove 6, thereby improving work efficiency.

[0039] Furthermore, the workpiece is placed in the clamping mold 3, and the movable mold 2 is used to extrude the clamping mold 3 so that the workpiece forms the shape of the mold inside the clamping mold 3. When the movable mold 2 completes the extrusion of the workpiece, the first control valve on the first connecting pipe 510, the second control valve on the sixth connecting pipe 575, and the valve body on the vent pipe at the output end of the air pump 4 are opened, that is, the gas inside the connecting cylinder 571 and the piston cylinder 58 is released. At this time, the first piston rod 59, under the elastic force of restoring elastic deformation between the first piston rod 59 and the piston cylinder 58, drives the connecting rod 52 and the ejector rod 51 to impact in the direction close to the workpiece, thereby facilitating the demoulding work.

[0040] At the same time, the gas inside the connecting cylinder 571 is released, and under the elastic force of restoring the elastic deformation between the second piston rod 572 and the connecting cylinder 571, the adjusting plate 55 is driven to deflect around the hinge in the direction close to the second piston rod 572, until the distance between the two gradually increases in the direction close to the first piston rod 59. At this time, the connecting rod 52 is driven to move in the gradually increasing magnetic field, and the gradually increasing magnetic field will produce a gradually increasing magnetic attraction to the third magnet 511, thereby accelerating the movement of the connecting rod 52 and the ejector rod 51 toward the placement groove 6 driven by the third magnet 511, thereby increasing the impact force of the ejector rod 51 on the workpiece, and further facilitating the ejector rod 51 to perform the demoulding operation on the workpiece.

[0041] It is worth noting that the magnitude of the magnetic force of the electromagnet 56 depends on the amount of current passed into the electromagnet 56, that is, the magnitude of the magnetic force between the two electromagnets 56 depends on the amount of current passed into the electromagnet 56, that is, the magnitude of the impact force generated during the movement of the third magnet 511 and the ejector pin 51 depends on the amount of current passed into the electromagnet 56, that is, the magnitude of the impact force of the ejector pin 51 on the workpiece can be controlled by controlling the amount of current passed into the electromagnet 56, further improving the versatility of the impact demolding operation and better adapting to the demolding operation of different workpieces;

[0042] It is worth noting that when the push rod 51 moves toward the direction approaching the workpiece, the first magnet 712 and the second magnet 714 are in a staggered state, and the repulsive force between the first magnet 712 and the third extrusion plate 711 disappears. Under the elastic force of restoring the elastic deformation between the second magnet 714 and the second shell 710, the third extrusion plate 711 moves toward the direction approaching the first magnet 712, and the second magnet 714 and the fourth connecting tube 715 are in a staggered state. Under the elastic force of restoring the elastic deformation between the third extrusion plate 711 and the second shell 710, the gas inside the second shell 710 enters the second connecting groove 716 through the fourth connecting tube 715, and then enters the first connecting groove 78 through the second connecting groove 716, and then enters the placement groove 6 through the liquid outlet 79, thereby squeezing the workpiece inside the placement groove 6, thereby further improving the demolding effect of the workpiece.

[0043] Reference Figure 5 The inner diameter of the liquid outlet hole 79 gradually decreases as it approaches the annular inner surface of the placement groove 6, thereby increasing the impact force of the release agent sprayed onto the annular inner surface of the placement groove 6 through the liquid outlet hole 79, and further ensuring that the release agent can be sprayed onto the annular inner surface of the placement groove 6.

[0044] Reference Figure 7 A breathable membrane 717 is connected to the connection between the second connecting groove 716 and the fifth connecting pipe 718 to prevent the release agent from entering the second connecting groove 716 through the first connecting groove 78, thereby reducing the consumption of the release agent.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-station automatic cold heading machine, comprising a base, a movable mold and a clamping mold evenly mounted on the inner bottom surface of the base for use together, an air pump arranged on the inner bottom surface of the base near the clamping mold, and a placement groove provided on the clamping mold working surface, characterized in that: Also includes: A demoulding assembly is provided on the inner bottom surface of the base near the mold closing position, and is used for demoulding the workpiece. The output pipe of the air pump is connected with an air release pipe. The demoulding assembly includes a push rod slidably connected to the inner bottom surface of the placement groove. One end of the push rod away from the placement groove extends to the outside of the mold closing and is connected to a connecting rod. A first shell is connected to the inner top surface of the base near the connecting rod. A movable groove is opened inside the first shell. One end of the connecting rod away from the push rod extends to the inside of the movable groove and is fixedly connected to a third magnet. The side of the third magnet away from the connecting rod is connected to the first piston rod, and the inner side of the movable groove close to the connecting rod and the two sides close to the connecting rod are hinged with adjustment plates, and the adjacent sides of the two adjustment plates are fixedly connected to evenly distributed electromagnets, and the inner side of the movable groove away from the connecting rod corresponding to the position of the first piston rod is connected to the piston cylinder; One end of the first piston rod away from the connecting rod extends into the interior of the piston cylinder, the first piston rod and the piston cylinder are elastically slidably connected, a first connecting pipe is connected through the annular inner side surface of the piston cylinder near the upper part, the end of the first connecting pipe away from the piston cylinder extends through the first housing to a position near the air pump, and is connected to the output pipe of the air pump, the first connecting pipe includes a first pipeline and a first control valve; It also includes an auxiliary component for adding a release agent to the side of the placement groove; the auxiliary component includes a mounting cylinder connected to the end of the connecting rod away from the first shell, the mounting cylinder is rotatably connected to a rotating rod near the middle of the inner side surface of the connecting rod, the side of the rotating rod is threadedly connected to the first extrusion plate, and the first extrusion plate is elastically connected to the mounting cylinder.

2. The multi-station automatic cold heading machine according to claim 1, characterized in that: The adjustment assembly also includes an adjustment component; the adjustment component includes connecting cylinders symmetrically connected to the sides of the movable groove on both sides, the connecting cylinder is elastically connected to the side away from the adjustment plate with a second piston rod, the second piston rod extends from one end of the first shell to a position close to the adjustment plate, and is hinged to a slider through a hinge. A sliding groove is provided on the side of the adjustment plate near the slider, and the slider is slidably connected to the sliding groove. A sixth connecting pipe is provided at a position of the connecting tube away from the adjustment plate. The sixth connecting pipe includes a second pipeline and a second control valve. One end of the sixth connecting pipe away from the connecting tube extends to a position close to the air pump and is communicated with the output end of the air pump.

3. The multi-station automatic cold heading machine according to claim 1, characterized in that: The rotating rod extends from one end of the connecting rod to a position close to the push rod and is fixedly connected to the push rod. The side of the first extrusion plate is threadedly connected to the second extrusion plate near the clamping mold. The side of the second extrusion plate away from the mounting tube is connected to an airbag. The airbag is fixedly connected to the clamping mold. A liquid adding tube is connected through the annular side of the airbag near the clamping mold. A first connecting groove is provided inside the placement groove. A second connecting tube is connected through the side of the airbag near the placement groove near the first connecting groove. The second connecting tube includes a fourth pipe and a one-way valve. The airbag and the first connecting groove are communicated through the second connecting tube. Evenly distributed liquid outlet holes are provided on the side of the first connecting groove near the placement groove.

4. The multi-station automatic cold heading machine according to claim 3, characterized in that: The inner radial direction of the liquid outlet gradually decreases towards the inner annular side surface of the placement groove.

5. The multi-station automatic cold heading machine according to claim 1, characterized in that: The auxiliary component also includes a second shell fixedly connected to the side of the first shell close to the mounting cylinder, the second shell is elastically connected to the side close to the first shell with a third extrusion plate, and the side of the second shell away from the mounting cylinder and close to the third extrusion plate is connected through a fifth connecting pipe, and the fifth connecting pipe includes a third pipeline and a third control valve.

6. The multi-station automatic cold heading machine according to claim 3, characterized in that: The auxiliary component also includes a second magnet elastically connected to the side of the second shell away from the fifth connecting tube. The second magnet is located near the third extrusion plate. The side of the second shell corresponding to the position of the second magnet is connected with a third connecting tube. One end of the third connecting tube away from the second magnet extends to the interior of the mounting tube. The mounting tube and the third extrusion plate are communicated through the third connecting tube. The inner wall of the mounting tube is connected to the first magnet near the third connecting tube. The magnetic properties of the adjacent surfaces of the first magnet and the second magnet are the same.

7. The multi-station automatic cold heading machine according to claim 6, characterized in that: A fourth connecting tube is connected to the position of the second magnet on the inner side surface of the second shell near the mold closing, and a second connecting groove is opened inside the rotating rod at a position corresponding to the fifth connecting tube. The second shell and the second connecting groove are connected through the fourth connecting tube, and the second connecting groove and the first connecting groove are connected.

8. The multi-station automatic cold heading machine according to claim 7, characterized in that: A breathable membrane is connected to the connection point between the second connecting groove and the fifth connecting pipe.

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