Semi-automatic punching machine for machining metal mesh pad

Abstract

The utility model provides a semi-automatic punching machine for machining a metal net pad, and relates to the field of wire ring pad machining. The semi-automatic punching machine for machining the metal net pad comprises a hydraulic cylinder, an upper die and a lower die, the upper die is installed on an output shaft of the hydraulic cylinder, the semi-automatic punching machine further comprises a bottom box, the lower die is installed on the bottom box, the lower end of the lower die is located in the bottom box, a discharging assembly is installed in the lower die, a linkage assembly is further installed in the bottom box, and the hydraulic cylinder controls the discharging assembly to discharge materials through the linkage assembly. According to the semi-automatic punching machine for machining the metal mesh pad, by arranging a hydraulic cylinder, a discharging assembly and a linkage assembly, a movable ring can instantly move upwards under the contraction force of a spring B, then a top ring is adopted to eject out the metal mesh pad, the smooth discharging effect can be achieved, the discharging effect is better compared with gas impact and impact force, lubricating oil discharged from a guide rod is not prone to falling off, and the service life of the guide rod is prolonged. And the effects of stamping lubrication and stamping part cooling can be achieved, and the stamping part can be prevented from being burnt out.

Description

Technical Field

[0001] The utility model relates to the field of wire loop gasket processing, and specifically to a semi-automatic stamping machine for processing metal mesh gaskets. Background Technique

[0002] To ensure sealing performance, the gaskets used on the engine cylinder cover need to have a certain shock-absorbing effect. Initially, gaskets directly punched from metal sheets were used, and their elasticity was merely a property of the metal itself, with almost zero elasticity and poor shock resistance, resulting in relatively poor sealing performance of the cylinder cover and prone to problems such as air leakage. After improvement, rubber gaskets with better elasticity were adopted, with good shock-absorbing effect and enhanced sealing performance. However, their service life is short and they are prone to damage after being used for a period of time. After damage, new gaskets need to be replaced, which not only wastes time but also money. Metal mesh gaskets have been widely used as shock-absorbing springs, buffer materials, and sound-absorbing materials due to their excellent heat resistance and corrosion resistance. Metal mesh gaskets are processed by weaving thin metal wires. The thin metal wires need to be frequently cut. However, due to their small diameter and hard material, sharp blades need to be frequently replaced during cutting.

[0003] Chinese Patent: CN220781918U discloses an oil seal wire mesh gasket pressing die, which includes a support component, an upper die component, and a lower die component; the upper die component is fixedly connected to the top of the support component; the lower die component is fixedly connected to the bottom of the support component; the punch of the upper die component is coaxial with the die cavity of the lower die component. By adopting an automatic pressing die, the utility model can place the turned-in wire mesh into the lower die, and then the hollow pressing tube of the upper die presses down on the wire mesh under the push of the cylinder. After pressing is completed, the guide rod automatically withdraws, and compressed air blows out the oil seal wire mesh gasket from the die, which is convenient for unloading, and has the advantages of time-saving, labor-saving, high pressing efficiency, and stable pressing quality.

[0004] In this solution, it is proposed that the existing oil seal wire mesh gaskets are generally cut off a section of wire mesh by hand, then turned inwards at both ends, and the middle hole is sleeved on the lower die guide rod of the die, and then pressed by stepping on a manual press with foot force. Then, the oil seal wire mesh gasket is pulled out from the lower die guide rod with tools, which is time-consuming and laborious and has low efficiency. Then, by stepping on a pneumatic device, compressed air enters the rectangular sink in the middle plate and is blown out through the gap between the guide rod and the through hole in the upper plate sink hole, so that the wire mesh gasket is blown out of the upper plate sink hole, which is convenient for unloading. However, in actual situations, the inner ring of the wire mesh gasket is prone to deformation after stamping, so the friction with the lower die guide rod will increase, and it is difficult to unload it with compressed air. Moreover, the wire mesh gasket has air permeability, and the impact force it bears during gas unloading is small, and most of the force is dispersed. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a semi-automatic stamping machine for processing metal mesh gaskets, which solves the problems put forward in the background art.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is realized through the following technical solutions: A semi-automatic stamping machine for processing metal mesh gaskets, including a hydraulic cylinder, an upper die and a lower die. The upper die is installed on the output shaft of the hydraulic cylinder. It also includes a bottom box, and the lower die is installed on the bottom box, and its lower end is inside the bottom box. A blanking component is installed inside the lower die, and a linkage component is also installed inside the bottom box. The hydraulic cylinder controls the blanking of the blanking component through the linkage component.

[0009] Preferably, the blanking component includes a guide rod, a piston, a piston rod, a top ring and a movable ring. The inside of the guide rod is a hollow structure. The piston is inside the guide rod. On one side of the guide rod above the piston, a one-way oil suction pipe is installed. The piston rod is fixed to the bottom of the piston. The lower end of the piston rod passes through the guide rod and then is sleeved with a spring A. The other end of the spring A turns back and is fixed to the end of the guide rod. The spring A is fixed to the end of the piston rod. The top ring is sleeved on the guide rod and is on the lower die. The movable ring is sleeved on the guide rod and is under the lower die. A spring B is provided between the movable ring and the lower die. The spring B is sleeved on the guide rod, and its two ends are respectively fixed to the movable ring and the lower die;

[0010] A circle of oil discharge grooves is opened on the outer wall of the guide rod above the top ring;

[0011] A push rod is laterally and elastically hinged to the outside of the guide rod. One end of the push rod corresponds to the movable ring. When the top ring moves down to the lowest position, the movable ring moves below the push rod and is locked by the push rod.

[0012] Preferably, the outer side of the bottom surface of the movable ring is a slope structure. One end of the push rod close to the movable ring is bent into a U-shaped structure, and the side corresponding to the bottom surface of the movable ring on its upper end is a slope structure, and its lower end is a flat structure.

[0013] Preferably, a circle of slide rods is provided between the top ring and the movable ring. The slide rods penetrate through the lower die and are slidably connected to it. The upper and lower ends of the slide rods are respectively fixed to the top ring and the movable ring.

[0014] Preferably, a circular groove is provided in a circle near the guide rod at the middle position of the lower die. The top ring matches the height and size of the circular groove.

[0015] Preferably, the linkage assembly includes a linkage rod, a pressing wheel, a pry plate, and a fixing rod. One end of the fixing rod is fixed to the inner top wall of the bottom box. The pry plate is connected to the lower end of the fixing rod, and is elastically hinged to the fixing rod. A roller is installed at one end of the pry plate, and the roller is located below the piston rod. The linkage rod passes through the top wall of the bottom box and is slidably connected thereto. The upper end of the linkage rod is fixed to the upper die. The pressing wheel is located on one side of the lower end of the linkage rod and is connected thereto. The pressing wheel corresponds to the end of the pry plate away from the piston rod.

[0016] The lower end of the linkage rod is a tip structure, corresponding to the end of the lever away from the movable ring, and can push the lever.

[0017] Preferably, a short rod is installed at an extended position on one side of the linkage rod inside the bottom box, and the pressing wheel is installed at the other end of the short rod.

[0018] (III) Beneficial Effects

[0019] The utility model provides a semi-automatic stamping machine for processing metal mesh gaskets, which has the following beneficial effects:

[0020] 1. For the semi-automatic stamping machine for processing metal mesh gaskets, by setting a hydraulic cylinder, a blanking assembly, and a linkage assembly, the wire mesh gasket can be placed on the lower die and then stamped and made by the upper die. After stamping, the top ring is compressed to the bottommost part, and then the movable ring moves downward to stretch the spring B so that the movable ring is locked by the lever. Then when the hydraulic cylinder contracts, the linkage rod pulls up the lever. At this time, the lever loses the restriction on the movable ring, and the movable ring will instantaneously move upward under the contraction force of the spring B. Then, the wire mesh gasket is ejected by the top ring, achieving the effect of smooth material discharge. Moreover, compared with gas impact, the impact force for material discharge has a better effect.

[0021] 2. For the semi-automatic stamping machine for processing metal mesh gaskets, by setting a guide rod and a piston, under the periodic action of the frequent up-and-down movement of the hydraulic cylinder, the pressing wheel will continuously push the pry plate, and then the roller of the pry plate will push the piston rod, causing the piston rod to drive the piston to move up and down in the guide rod. Thus, the one-way oil suction pipe can extract lubricating oil, which is then discharged through the oil discharge groove, keeping the outside of the guide rod always in a lubricated state. Moreover, the lubricating oil discharged from the guide rod can also play the roles of stamping lubrication, cooling the stamping parts, and preventing the stamping parts from burning out. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the utility model;

[0023] Figure 2 is a partial structural diagram of the utility model;

[0024] Figure 3 is a partial structural split diagram of the utility model;

[0025] Figure 4 is an enlarged view of the structure in the present utility model Figure 2 ;

[0026] Figure 5 is an enlarged view of the structure in the present utility model Figure 3 ;

[0027] In the figure: 1, hydraulic cylinder; 2, upper die; 3, lower die; 4, bottom box; 5, blanking component; 501, guide rod; 502, piston; 503, piston rod; 504, top ring; 505, movable ring; 506, one-way oil extraction pipe; 507, spring A; 508, spring B; 509, oil drainage groove; 510, lever; 511, slide bar; 6, linkage component; 601, linkage rod; 602, pressure wheel; 603, pry plate; 604, fixed rod; 605, roller; 606, short rod. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0029] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] The embodiment of the present utility model provides a semi-automatic stamping machine for processing metal mesh gaskets:

[0031] As Figures 1-5 shown, it includes a hydraulic cylinder 1, an upper die 2 and a lower die 3. The upper die 2 is installed on the output shaft of the hydraulic cylinder 1. It further includes a bottom box 4. The lower die 3 is installed on the bottom box 4, and its lower end is inside the bottom box 4. A blanking component 5 is installed inside the lower die 3, and a linkage component 6 is also installed inside the bottom box 4. The hydraulic cylinder 1 controls the blanking of the blanking component 5 through the linkage component 6.

[0032] The upper die 2 and the lower die 3 are common structures for processing wire mesh gaskets, and the hydraulic cylinder 1 is driven and controlled by an external hydraulic component.

[0033] The blanking assembly 5 includes a guide rod 501, a piston 502, a piston rod 503, a top ring 504 and a movable ring 505. The inside of the guide rod 501 is a hollow structure. The piston 502 is located inside the guide rod 501. A one-way oil suction pipe 506 is installed above the piston 502 on one side of the guide rod 501. The piston rod 503 is fixed to the bottom of the piston 502. The lower end of the piston rod 503 passes through the guide rod 501 and is sleeved with a spring A 507. The other end of the spring A 507 turns back and is fixed to the end of the guide rod 501. The spring A 507 is fixed to the end of the piston rod 503. The top ring 504 is sleeved on the guide rod 501 and is located on the lower die 3. The movable ring 505 is sleeved on the guide rod 501 and is located below the lower die 3. A spring B 508 is provided between the movable ring 505 and the lower die 3. The spring B 508 is sleeved on the guide rod 501, and its two ends are respectively fixed to the movable ring 505 and the lower die 3;

[0034] An oil drain groove 509 is formed in the outer wall of the guide rod 501 above the top ring 504;

[0035] A shift lever 510 is horizontally and elastically hinged to the outside of the guide rod 501. One end of the shift lever 510 corresponds to the movable ring 505. When the top ring 504 moves down to the lowest end, the movable ring 505 moves below the shift lever 510 and is locked by the shift lever 510.

[0036] The guide rod 501 is a metal hollow structure, and different specifications can be replaced according to the inner diameter of the wire mesh washer. The other end of the one-way oil suction pipe 506 is connected to a lubricating oil kettle, and a one-way valve is provided inside it. It can supply oil when sucking oil and cannot flow in the reverse direction.

[0037] The outer side of the bottom surface of the movable ring 505 is a slope structure. One end of the shift lever 510 close to the movable ring 505 is bent into a U-shaped structure, and the upper end corresponding to the bottom surface of the movable ring 505 is a slope structure, and the lower end is a flat structure.

[0038] The movable ring 505 can easily cross over the shift lever 510 but cannot return.

[0039] A circle of slide rods 511 is provided between the top ring 504 and the movable ring 505. The slide rods 511 penetrate through the lower die 3 and are slidably connected to it. The upper and lower ends of the slide rods 511 are respectively fixed to the top ring 504 and the movable ring 505.

[0040] A circular groove is provided in a circle near the guide rod 501 at the middle position of the lower die 3. The top ring 504 is matched with the circular groove in terms of height and size.

[0041] When stamping the wire mesh washer, the top ring 504 can be squeezed to the lowest position.

[0042] The linkage assembly 6 includes a linkage rod 601, a pressure wheel 602, a pry plate 603 and a fixed rod 604, one end of the fixed rod 604 is fixed to the inner top wall of the bottom box 4, the pry plate 603 is connected to the lower end of the fixed rod 604, the pry plate 603 and the fixed rod 604 are elastically hinged, one end of the pry plate 603 is installed with a roller 605, the roller 605 is located below the piston rod 503, the linkage rod 601 passes through the top wall of the bottom box 4 and is slidably connected thereto, the upper end of the linkage rod 601 is fixed to the upper mold 2, the pressure wheel 602 is located at one side of the lower end of the linkage rod 601 and is connected thereto, and the pressure wheel 602 corresponds to the end of the pry plate 603 away from the piston rod 503;

[0043] The lower end of the linkage rod 601 is a pointed end structure, corresponding to the end of the lever 510 away from the movable ring 505 , and capable of moving the lever 510 .

[0044] A short rod 606 is extended and installed on one side of the linkage rod 601 inside the bottom box 4 , and the pressure wheel 602 is installed on the other end of the short rod 606 .

[0045] When in use, the wire mesh gasket can be placed on the lower die 3 and then punched by the upper die 2. After the punching is completed, the top ring 504 is compressed to the bottom, and then the movable ring 505 moves down to stretch the spring B508 so that the movable ring 505 is locked by the lever 510. Then, when the hydraulic cylinder 1 contracts, the linkage rod 601 pulls up the lever 510. At this time, the lever 510 loses the restriction on the movable ring 505. The movable ring 505 will be instantly moved up by the contraction force of the spring B508, and then the top ring 504 is used to push the wire mesh gasket out, and the hydraulic cylinder 1 Under the frequent up and down movement cycle, the pressure wheel 602 will continuously push the pry plate 603, and then the roller 605 of the pry plate 603 will push the piston rod 503, so that the piston rod 503 drives the piston 502 to move up and down in the guide rod 501, so that the one-way oil extraction pipe 506 can extract the lubricating oil and then discharge it through the oil drain groove 509, which can keep the outside of the guide rod 501 in a lubricated state at all times, and the lubricating oil discharged from the guide rod 501 can also play the role of stamping lubrication, cooling the stamping parts, and preventing the stamping parts from burning.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0047] In addition, the technical solutions between various embodiments can be combined with each other, provided that they can be implemented by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-automatic punching machine for processing a metal mesh pad, comprising a hydraulic cylinder (1), an upper die (2) and a lower die (3), wherein the upper die (2) is mounted on an output shaft of the hydraulic cylinder (1), and characterized in that: The invention also comprises a bottom box (4), the lower die (3) is mounted on the bottom box (4), the lower end of the lower die (3) is located in the bottom box (4), a material discharge assembly (5) is mounted in the lower die (3), a linkage assembly (6) is also mounted in the bottom box (4), and the hydraulic cylinder (1) controls the material discharge of the material discharge assembly (5) through the linkage assembly (6).

2. The semi-automatic punching machine for processing metal mesh pads according to claim 1, characterized in that: The material discharge assembly (5) comprises a guide rod (501), a piston (502), a piston rod (503), a top ring (504) and a movable ring (505). The interior of the guide rod (501) is a hollow structure. The piston (502) is located in the guide rod (501). A one-way oil pumping pipe (506) is installed on one side of the guide rod (501) above the piston (502). The piston rod (503) is fixed to the bottom of the piston (502). The lower end of the piston rod (503) passes through the guide rod (501) and is covered with a spring A (507). The other end of the spring A (507) is folded back and fixed to the end of the guide rod (501), the spring A (507) is fixed to the end of the piston rod (503), the top ring (504) is sleeved on the guide rod (501) and is located on the lower mold (3), the movable ring (505) is sleeved on the guide rod (501) and is located under the lower mold (3), a spring B (508) is provided between the movable ring (505) and the lower mold (3), the spring B (508) is sleeved on the guide rod (501), and its two ends are respectively fixed to the movable ring (505) and the lower mold (3); An oil drain groove (509) is formed on the outer wall of the guide rod (501) above the top ring (504); A lever (510) is elastically hingedly connected to the outer side of the guide rod (501), one end of the lever (510) corresponds to the movable ring (505), and when the top ring (504) moves downward to the lowest end, the movable ring (505) moves below the lever (510) and is locked by the lever (510).

3. The semi-automatic punching machine for processing metal mesh pads according to claim 2, characterized in that: The outer side of the bottom surface of the movable ring (505) is a slope structure, and one end of the lever (510) close to the movable ring (505) is bent into a U-shaped structure, and the upper end thereof corresponding to the side of the bottom surface of the movable ring (505) is a slope structure, and the lower end thereof is a plane structure.

4. The semi-automatic punching machine for processing metal mesh pads according to claim 3, characterized in that: A circle of sliding rods (511) is provided between the top ring (504) and the movable ring (505). The sliding rods (511) penetrate the lower mold (3) and are slidably connected thereto. The upper and lower ends of the sliding rods (511) respectively fix the top ring (504) and the movable ring (505).

5. The semi-automatic punching machine for processing metal mesh pads according to claim 4, characterized in that: An annular groove is provided in a circle near the guide rod (501) at the middle position of the lower mold (3), and the top circle (504) matches the annular groove in height and size.

6. The semi-automatic punching machine for processing metal mesh pads according to claim 5, characterized in that: The linkage assembly (6) comprises a linkage rod (601), a pressure wheel (602), a prying plate (603) and a fixed rod (604), one end of the fixed rod (604) is fixed to the inner top wall of the bottom box (4), the prying plate (603) is connected to the lower end of the fixed rod (604), the prying plate (603) and the fixed rod (604) are elastically hinged, one end of the prying plate (603) is installed with a roller (605), the roller (605) is located below the piston rod (503), the linkage rod (601) passes through the top wall of the bottom box (4) and is slidably connected thereto, the upper end of the linkage rod (601) is fixed to the upper mold (2), the pressure wheel (602) is located on one side of the lower end of the linkage rod (601) and is connected thereto, and the pressure wheel (602) corresponds to the end of the prying plate (603) away from the piston rod (503); The lower end of the linkage rod (601) is a tip structure, corresponding to the end of the lever (510) away from the movable ring (505), and capable of shifting the lever (510).

7. The semi-automatic punching machine for processing metal mesh pads according to claim 6, characterized in that: The linkage rod (601) is provided with a short rod (606) extending from one side of the bottom box (4), and the pressure wheel (602) is installed on the other end of the short rod (606).

Images