Thin-walled pipe head cold press forming die

Abstract

The utility model discloses a kind of thin-walled pipe head cold press forming die, including bottom plate, both sides of bottom plate top are fixedly connected with side plate, two the side plate upper end are fixedly connected with top plate, and the top plate bottom is equipped with stamping structure;The bottom plate top is fixedly connected with support seat, the support seat top is equipped with forming groove, and the support seat is directly below stamping structure, and the bottom plate top is fixedly connected with two oil storage box, two the oil storage box top are fixedly connected with oil suction pipe, and two the oil suction pipe bottom are all through oil storage box and extend to oil storage box inner bottom portion.The utility model can spray oil to the surface of pressing block automatically when cold pressing by the cooperation of oil storage box, oil suction pipe, driving plate, pull rod and other components, so as to greatly reduce the friction between pressing block and cold pressing piece, not only can reduce the wear of pressing block surface, but also can reduce the wear of cold pressing piece surface, and it is high in practicality.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled tube end cap technology, and in particular to a cold pressing mold for thin-walled tube end caps. Background Technology

[0002] Thin-walled stainless steel end caps are products used to seal stainless steel pipes. They are usually made by welding two end caps to the end of a pipe or to both ends of a section of round pipe. Thin-walled stainless steel end caps have a wide range of manufacturing processes and applications, involving multiple industries. During the processing, the stainless steel end caps need to be cold-pressed, and molds are required for shaping during the process.

[0003] For example, Chinese Patent Publication No. CN222710676U discloses a cold-pressing mold for thin-walled stainless steel heads, relating to the field of stainless steel head processing technology. This utility model includes a support base, a support plate, an auxiliary ring, an electric push rod one, and an electric push rod two. A forming cavity is formed at the top of the support base, and a support plate is positioned at the upper part of the forming cavity. A lifting spring is fixed to the bottom of the support plate. An auxiliary ring is fixed to the upper part of the periphery of the support base. An electric push rod one is positioned above the support plate, and a fixing frame is fixed to one side of the electric push rod one. An electric push rod two is fixed to the side of the fixing frame away from the electric push rod one. This utility model, by setting up a support base, support plate, auxiliary ring, electric push rod one, and electric push rod two, solves the problems of insufficient forming effect of the cold-pressing mold for thin-walled stainless steel heads and the potential safety hazards during removal after forming.

[0004] However, in the above scheme, when the device is in use, it extrudes and shapes the cold-pressed parts by forming blocks. However, during the cold pressing process, the cold-pressed parts are subjected to greater pressure and friction, which can easily aggravate the wear of the forming blocks and cause wear on the surface of the cold-pressed parts. Utility Model Content

[0005] This invention provides a cold-pressing mold for thin-walled tube end caps to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A cold-pressing mold for thin-walled tube end caps includes a base plate, side plates fixedly connected to both sides of the top of the base plate, a top plate fixedly connected between the upper ends of the two side plates, and a stamping structure provided at the bottom of the top plate; A support base is fixedly connected to the top of the base plate. A forming groove is opened on the top of the support base. The support base is located directly below the stamping structure. Two oil storage boxes are fixedly connected to the top of the base plate. An oil suction pipe is fixedly connected to the top of each of the two oil storage boxes. The bottom of each of the two oil suction pipes passes through the oil storage box and extends to the bottom of the oil storage box. An oil suction structure is provided inside each of the two oil suction pipes. An oil outlet pipe is fixedly connected to the side wall of each of the two oil suction pipes. The two oil outlet pipes are respectively connected to the inside of the two oil suction pipes. A mist nozzle is provided at one end of each of the two oil outlet pipes. The two mist nozzles are located on both sides of the support base.

[0007] As a further improvement to this technical solution: the stamping structure includes an electric push rod, which is fixedly connected to the bottom side wall of the top plate. A pressure plate is fixedly connected to the extended end of the electric push rod, and a pressure block is fixedly connected to the bottom of the pressure plate. The pressure block is adapted to the forming groove.

[0008] As a further improvement to this technical solution: the oil suction structure includes four mounting slots, which are respectively opened in two oil suction pipes. A second spring is fixedly connected to the top of each of the two vertical mounting slots, with one end of each second spring in a movable state. A blocking ball is placed at the bottom of each of the two vertical mounting slots, with one end of each second spring abutting against the side wall of each blocking ball. When the blocking ball abuts against the bottom side wall of the mounting slot, it can block the internal oil suction channel of the oil suction pipe. A third spring is fixedly connected to the side wall of each of the two horizontal mounting slots, with a piston fixedly connected to one end of each third spring. The two pistons are slidably connected in the two horizontal mounting slots, with a pull rod fixedly connected to one end of each piston, and a drive plate fixedly connected to one end of each pull rod. Two support plates are fixedly connected to the top of the base plate. The two support plates are located on both sides of the support base. One end of each of the two drive plates passes through the two support plates and is slidably connected to the support plates. One end of each of the two drive plates is located at the bottom of the pressure plate. One end of each of the two drive plates is inclined. One end of each of the two oil outlet pipes passes through the two support plates and is fixedly connected to the support plates.

[0009] As a further improvement to this technical solution: two L-shaped plates are fixedly connected to the side walls of the two support plates, and four L-shaped plates are fixedly connected to the side walls of the four L-shaped plates. The four first springs are respectively fixedly connected to one end side wall of the two drive plates.

[0010] As a further improvement to this technical solution: both oil storage boxes are made of transparent material.

[0011] As a further improvement to this technical solution: arc-shaped baffles are fixedly connected to both sides of the top of the support base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This device, through the cooperation of components such as an oil storage box, an oil suction pipe, a drive plate, and a pull rod, can automatically spray oil onto the surface of the pressing block during cold pressing, thereby greatly reducing the friction between the pressing block and the cold-pressed parts. This not only reduces wear on the surface of the pressing block but also on the surface of the cold-pressed parts, making it highly practical.

[0013] The device uses two arc-shaped baffles to limit the cold-pressed parts and prevent them from shifting during the cold pressing process. The gap between the two arc-shaped baffles allows the formed cold-pressed parts to be quickly removed.

[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a front view structural diagram of a cold-pressing mold for thin-walled tube end caps proposed in this utility model; Figure 2 This is a top view schematic diagram of the oil spraying structure in a cold pressing mold for a thin-walled tube end cap proposed in this utility model; Figure 3 This is a front cross-sectional view of the oil spraying structure in a cold-pressing mold for a thin-walled tube end, as proposed in this utility model. Figure 4 This is a front view cross-sectional structural diagram of the oil storage box in a cold-pressing mold for a thin-walled tube end cap proposed in this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Base plate; 2. Oil reservoir; 3. Support plate; 4. Support base; 5. Forming groove; 6. Arc-shaped baffle; 7. Side plate; 8. Oil suction pipe; 9. L-shaped plate; 10. Top plate; 11. First spring; 12. Drive plate; 13. Electric push rod; 14. Pressure block; 15. Pressure plate; 16. Oil outlet pipe; 17. Shielding ball; 18. Mist nozzle; 19. Second spring; 20. Pull rod; 21. Piston; 22. Third spring; 23. Mounting groove. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described in more detail below by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0018] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figure 1-4 In this embodiment of the utility model, a cold pressing mold for thin-walled tube end caps includes a base plate 1, side plates 7 are fixedly connected to both sides of the top of the base plate 1, a top plate 10 is fixedly connected between the upper ends of the two side plates 7, and a stamping structure is provided at the bottom of the top plate 10. A support base 4 is fixedly connected to the top of the base plate 1. A forming groove 5 is opened on the top of the support base 4. The support base 4 is located directly below the stamping structure. Two oil storage boxes 2 are fixedly connected to the top of the base plate 1. Both oil storage boxes 2 are made of transparent material, which makes it easy to see the oil level in the two oil storage boxes 2 so as to replenish it in time. An oil suction pipe 8 is fixedly connected to the top of the two oil storage boxes 2. The bottom of the two oil suction pipes 8 passes through the oil storage box 2 and extends to the bottom of the oil storage box 2. An oil suction structure is provided inside the two oil suction pipes 8. An oil outlet pipe 16 is fixedly connected to the side wall of the two oil suction pipes 8. The two oil outlet pipes 16 are respectively connected to the inside of the two oil suction pipes 8. A mist nozzle 18 is provided at one end of the two oil outlet pipes 16. The two mist nozzles 18 are located on both sides of the support base 4.

[0021] Please see Figure 1The stamping structure includes an electric push rod 13, which is fixedly connected to the bottom side wall of the top plate 10. A pressure plate 15 is fixedly connected to the extended end of the electric push rod 13, and a pressure block 14 is fixedly connected to the bottom of the pressure plate 15. The pressure block 14 is adapted to the forming groove 5. By starting the electric push rod 13, the extended end of the electric push rod 13 drives the pressure plate 15 to move, so that the pressure plate 15 drives the pressure block 14 to move downward. The pressure block 14 squeezes the cold-pressed part into the forming groove 5 for extrusion molding.

[0022] Please see Figure 1-4 The oil suction structure includes four mounting slots 23, which are respectively opened in two oil suction pipes 8. The top of each of the two vertical mounting slots 23 is fixedly connected to a second spring 19, one end of each second spring 19 is in a movable state. The bottom of each of the two vertical mounting slots 23 is placed with a blocking ball 17, one end of each second spring 19 abutting against the side wall of each blocking ball 17. When the blocking ball 17 abuts against the bottom side wall of the mounting slot 23, it can block the internal oil suction channel of the oil suction pipe 8. The side walls of each of the two horizontal mounting slots 23 are fixedly connected to a third spring 22, one end of each third spring 22 is fixedly connected to a piston 21, and the two pistons 21 are slidably connected in the two horizontal mounting slots 23. One end of each piston 21 is fixedly connected to a pull rod 20, and one end of each pull rod 20 is fixedly connected to a drive plate 12. Two support plates 3 are fixedly connected to the top of the base plate 1. The two support plates 3 are located on both sides of the support base 4. One end of each of the two drive plates 12 passes through the two support plates 3 and is slidably connected to the support plates 3. One end of each of the two drive plates 12 is located at the bottom of the pressure plate 15. One end of each of the two drive plates 12 is inclined. One end of each of the two oil outlet pipes 16 passes through the two support plates 3 and is fixedly connected to the support plates 3. When the pressure plate 15 moves downward, it will squeeze the inclined sidewalls of the two drive plates 12, causing the two drive plates 12 to be squeezed and move in opposite directions. The two drive plates 12 simultaneously squeeze the two first springs 11, causing the two first springs 11 to be in a stressed state. The two drive plates 12 simultaneously drive the pull rod 20 to squeeze the piston 21, causing the piston 21 to squeeze the air inside the oil suction pipe 8. Due to the obstruction of the blocking ball 17, the air inside the oil suction pipe 8 can only be discharged through the oil outlet pipe 16 and the mist nozzle 18. At this time, the drive plate 12 is pressed against the sidewall of the pressure plate 15. Then the pressure plate 15 is reset. At this time, the two first springs 16 are pressed against the sidewall of the pressure plate 15. Spring 11 and the third spring 22 will drive the drive plate 12 to automatically reset. The drive plate 12 pulls the piston 21 to reset, thereby generating suction. This causes air to quickly enter the oil suction pipe 8 through the mist nozzle 18. At this time, the air near the mist nozzle 18 will flow rapidly under the suction of the piston 21, thus reducing the pressure. The pressure in the oil reservoir 2 will increase, and the oil in the oil reservoir 2 will push the blocking ball 17 into the oil suction pipe 8. When the drive plate 12 is squeezed, the drive plate 12 pushes... As piston 21 moves, the airflow is propelled by piston 21, and the blocking ball 17, affected by the airflow, blocks the oil suction pipe 8, causing oil to be quickly sprayed out through the mist nozzle 18. When the pressure plate 15 moves downward for cold pressing, the drive plate 12 is squeezed by the pressure plate 15, and the mist nozzle 18 quickly sprays oil onto the surface of the pressure block 14, thereby greatly reducing the friction between the pressure block 14 and the cold-pressed part and preventing scratches on the surface of the cold-pressed part caused by the pressure of the pressure block 14.

[0023] Please see Figure 1-3 Two L-shaped plates 9 are fixedly connected to the side walls of the two support plates 3. Four L-shaped plates 9 are fixedly connected to the side walls of the four L-shaped plates 9. The four first springs 11 are fixedly connected to one end side wall of the two drive plates 12 respectively. When the two drive plates 12 move, they will squeeze the two first springs 11, so that the two first springs 11 are under force. When the drive plate 12 is separated from the side wall of the pressure plate 15, the two first springs 11 will push the drive plate 12 to automatically reset, thereby improving the stability of the drive plate 12 when it moves.

[0024] Please see Figure 1-3 Both sides of the top of the support base 4 are fixedly connected with arc-shaped baffles 6. The two arc-shaped baffles 6 can limit the cold-pressed parts and prevent the cold-pressed parts from shifting during cold pressing. The gap between the two arc-shaped baffles 6 can facilitate the removal of the formed cold-pressed parts.

[0025] The working principle of this utility model is as follows: When cold pressing is required, the electric push rod 13 is activated. The extended end of the electric push rod 13 drives the pressure plate 15 to move, causing the pressure plate 15 to move the pressure block 14 downward. When the pressure plate 15 moves downward, it will squeeze the inclined sidewalls of the two drive plates 12, causing the two drive plates 12 to be squeezed and move in opposite directions. The two drive plates 12 simultaneously squeeze the two first springs 11, causing the two first springs 11 to be in a stressed state. The two drive plates 12 simultaneously drive the pull rod 20 to squeeze the piston 21, causing the piston 21 to squeeze the air inside the oil suction pipe 8. Due to the obstruction of the blocking ball 17, the air inside the oil suction pipe 8 can only be discharged through the oil outlet pipe 16 and the mist nozzle 18. At this time, the drive plate 12 is pressed against the sidewall of the pressure plate 15. Then, the pressure plate 15 is activated to reset. At this time, the two first springs 11 and the third spring 22 will drive the drive plate 12 to automatically reset. The drive plate 12 pulls the piston 21 to reset, thereby generating... The suction force causes air to quickly enter the oil suction pipe 8 through the mist nozzle 18. At this time, the air near the mist nozzle 18 will flow rapidly under the action of the piston 21, thus reducing the pressure. The pressure in the oil storage box 2 will increase, and the oil in the oil storage box 2 will push the blocking ball 17 into the oil suction pipe 8. When the drive plate 12 is squeezed, the drive plate 12 pushes the piston 21 to move. The airflow is pushed by the piston 21, and the blocking ball 17 is affected by the airflow and will block the oil suction pipe 8, so that the oil will be quickly sprayed out through the mist nozzle 18. When the pressure plate 15 moves downward for cold pressing, the drive plate 12 is squeezed by the pressure plate 15, and the mist nozzle 18 will quickly spray out the oil, so that the oil is sprayed on the surface of the pressure block 14, thereby greatly reducing the friction between the pressure block 14 and the cold pressed part, preventing the surface of the cold pressed part from being scratched by the pressure of the pressure block 14. Finally, the pressure block 14 squeezes the cold pressed part into the forming groove 5 for pressing and forming.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A cold-pressing mold for thin-walled tube end caps, comprising a base plate (1), characterized in that, The bottom plate (1) is fixedly connected to the two sides of the top, and a top plate (10) is fixedly connected between the upper ends of the two side plates (7). The bottom of the top plate (10) is provided with a stamping structure. The base plate (1) is fixedly connected to a support base (4) at the top. The support base (4) has a forming groove (5) at the top. The support base (4) is located directly below the stamping structure. The base plate (1) is fixedly connected to two oil storage boxes (2). The top of each of the two oil storage boxes (2) is fixedly connected to an oil suction pipe (8). The bottom of each of the two oil suction pipes (8) passes through the oil storage box (2) and extends to the bottom of the oil storage box (2). The two oil suction pipes (8) are equipped with an oil suction structure. The side walls of each of the two oil suction pipes (8) are fixedly connected to an oil outlet pipe (16). The two oil outlet pipes (16) are respectively connected to the inside of the two oil suction pipes (8). One end of each of the two oil outlet pipes (16) is equipped with a mist nozzle (18). The two mist nozzles (18) are located on both sides of the support base (4).

2. The cold pressing mold for thin-walled tube end caps according to claim 1, characterized in that, The stamping structure includes an electric push rod (13), which is fixedly connected to the bottom side wall of the top plate (10). The extended end of the electric push rod (13) is fixedly connected to a pressure plate (15), and the bottom of the pressure plate (15) is fixedly connected to a pressure block (14), which is adapted to the forming groove (5).

3. The cold pressing mold for thin-walled tube end caps according to claim 1, characterized in that, The oil-absorbing structure includes four mounting slots (23), which are respectively opened in two oil-absorbing pipes (8). A second spring (19) is fixedly connected to the top of each of the two vertical mounting slots (23). One end of each of the two second springs (19) is movable. A blocking ball (17) is placed at the bottom of each of the two vertical mounting slots (23). One end of each of the two second springs (19) abuts against the side wall of the two blocking balls (17). The blocking balls (17) abut against the mounting slots (23). When the bottom side wall of the 3) is on the oil suction pipe (8), the internal oil suction channel of the oil suction pipe (8) can be blocked. The side walls of the two horizontal mounting grooves (23) are fixedly connected with third springs (22). One end of each of the two third springs (22) is fixedly connected with a piston (21). The two pistons (21) are slidably connected in the two horizontal mounting grooves (23). One end of each of the two pistons (21) is fixedly connected with a pull rod (20). One end of each of the two pull rods (20) is fixedly connected with a drive plate (12). The bottom plate (1) is fixedly connected to two support plates (3) on the top. The two support plates (3) are located on both sides of the support base (4). One end of each of the two drive plates (12) passes through the two support plates (3) and is slidably connected to the support plates (3). One end of each of the two drive plates (12) is located at the bottom of the pressure plate (15). One end of each of the two drive plates (12) is inclined. One end of each of the two oil outlet pipes (16) passes through the two support plates (3) and is fixedly connected to the support plates (3).

4. The cold pressing mold for thin-walled tube end caps according to claim 3, characterized in that, Two L-shaped plates (9) are fixedly connected to the side walls of the two support plates (3), and four L-shaped plates (9) are fixedly connected to the side walls of the four L-shaped plates (9). The four first springs (11) are respectively fixedly connected to one side wall of the two drive plates (12).

5. The cold pressing mold for thin-walled tube end caps according to claim 1, characterized in that, Both of the oil storage boxes (2) are made of transparent material.

6. The cold pressing mold for thin-walled tube end caps according to claim 1, characterized in that, Both sides of the top of the support base (4) are fixedly connected to arc-shaped baffles (6).

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