Steel pipe convex ring forming die

Abstract

The utility model discloses a steel pipe convex ring forming die and relates to the field of steel pipes. The steel pipe convex ring forming die comprises a die body, an upper die plate is movably arranged above the die body, a protection mechanism is arranged in the upper die plate and comprises a protection sleeve plate, the protection sleeve plate is movably inserted into the upper die plate, the protection sleeve plate is connected to the outer portion of a steel pipe concave ring in a sleeving mode, and an auxiliary plate is arranged on the side face of the protection sleeve plate. The auxiliary plate is slidably arranged in the upper die plate and used for supporting and limiting movement of the protective sleeve plate, and the first spring is arranged outside the auxiliary plate and used for driving the protective sleeve plate to automatically return. According to the steel pipe convex ring forming die, by arranging the protective sleeve plate, the exterior of a convex ring is supported and protected when the convex ring is preliminarily formed, the outward expansion force of the convex ring is reduced, and therefore the convex ring is prevented from cracking in the forming process, and meanwhile the protective sleeve plate stays in the upper die plate after the steel pipe convex ring is machined; and the normal use of the mold main body is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a steel pipe convex ring forming die. Background Art

[0002] Steel pipes are widely used in daily life. To facilitate the later installation of steel pipes, it is necessary to extrude convex rings that move outwards on the outside of some steel pipes, and a steel pipe convex ring forming die is required in the processing.

[0003] At present, in the existing steel pipe convex ring forming die, the concave ring position is prone to cracking during the extrusion process;

[0004] The reason for this problem is that when some steel pipes are extruded and formed, the steel pipes need to be sleeved outside the forming die. There are upward convex blocks above the forming die, and then two sets of dies are used to extrude the position of the steel pipe. At this time, the convex blocks above the forming die will extrude the steel pipe with the concave position inside the upper template, so that the steel pipe forms a concave ring inside the upper template, thus completing the formation of the steel pipe convex ring. When the upper template is pressed downwards, the groove position inside the upper template does not contact the convex block of the forming die, and a certain extrusion force has been applied to some positions of the steel pipe. At this time, some positions of the steel pipe have formed partial convex rings, and this part of the convex ring will be exposed to the air at this time, and the convex block above the forming die will be inside the convex ring at this time. The convex ring of the steel pipe will expand due to the outward extrusion force of the convex block above the forming die. When the convex block of the steel pipe does not enter the inside of the upper template, the convex part of the steel pipe is prone to cracking due to the large internal outward force, resulting in the problem that the steel pipe cannot be used continuously. Therefore, we propose a steel pipe convex ring forming die. 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 steel pipe convex ring forming die, which solves the problem that the concave ring position in the existing steel pipe convex ring forming die is prone to cracking during the extrusion process.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model is realized by the following technical solutions: a steel pipe convex ring forming die, including a die body, an upper template is movably arranged above the die body, a protection mechanism is arranged inside the upper template, the protection mechanism includes a protection sleeve plate, the protection sleeve plate is movably inserted inside the upper template, the protection sleeve plate is sleeved outside the steel pipe concave ring, an auxiliary plate is arranged on the side of the protection sleeve plate, the auxiliary plate is slidably arranged inside the upper template, the auxiliary plate is used to support and limit the movement of the protection sleeve plate, a first spring is arranged outside the auxiliary plate, and the first spring is used to drive the protection sleeve plate to automatically return to its original position.

[0009] Preferably, limiting plates are fixedly connected to both sides of the die body, the upper template is slidably arranged on the side of the limiting plates, a forming die is arranged outside the die body, the forming die is arranged below the upper template, and a hydraulic push rod is arranged above the upper template.

[0010] Preferably, a moving block is fixedly connected to the outer side of the protection sleeve plate, a moving groove is opened inside the upper template, and the moving block is slidably connected inside the moving groove.

[0011] Preferably, a function groove is opened inside the upper template, the inside of the function groove communicates with the inside of the moving groove, and the auxiliary plate is slidably connected inside the function groove.

[0012] Preferably, a fixing plate is fixedly connected inside the moving groove, the auxiliary plate is slidably connected to the side of the fixing plate, and the auxiliary plate is fixedly connected to the side of the moving block.

[0013] Preferably, a limiting rod is fixedly connected inside the function groove, the top end of the limiting rod is fixedly connected below the fixing plate, the first spring is movably sleeved outside the limiting rod, the bottom end of the first spring is fixedly connected to the outside of the auxiliary plate, and the top end of the first spring is fixedly connected below the fixing plate.

[0014] Preferably, an outer frame plate is fixedly connected above the auxiliary plate, a support frame is slidably connected inside the outer frame plate, and a function block is fixedly connected to the outer side of the support frame.

[0015] Preferably, a support rod is fixedly connected inside the outer frame plate, a second spring is movably sleeved outside the support rod, one end of the second spring is fixedly connected to the inner side of the support frame, and the other end of the second spring is fixedly connected to the inside of the outer frame plate.

[0016] Preferably, a fixing groove is opened on one side of the upper template, and the function block is movably clamped inside the fixing groove.

[0017] The utility model discloses a steel pipe convex ring forming die, and the beneficial effects thereof are as follows:

[0018] The steel pipe convex ring forming die. By sleeving the steel pipe outside the forming die and sleeving the protective sleeve plate outside the convex block above the forming die, then the hydraulic push rod will push the upper template to move downward. At this time, the protective sleeve plate will move with the steel pipe until the protective sleeve plate moves inside the upper template. Then, the functional block will be movably clamped into the fixing groove under the tension of the second spring. Subsequently, the processed steel pipe can be taken out. By setting the protective sleeve plate, the outside of the convex ring is supported and protected when the convex ring is initially formed, reducing the outward expansion force of the convex ring, thereby avoiding cracking of the convex ring during the forming process. At the same time, the protective sleeve plate stays inside the upper template after the steel pipe convex ring is processed, and does not affect the normal use of the mold body. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Cross-sectional view of the internal structure of the upper template of the present invention;

[0022] Figure 3 Schematic diagram of the external structure of the protective sleeve plate of the present invention;

[0023] Figure 4 Exploded view of the external structure of the auxiliary plate of the present invention;

[0024] Figure 5 Exploded view of the external structure of the support frame of the present invention.

[0025] In the figure: 1. Mold body; 101. Upper template; 102. Forming die; 103. Hydraulic push rod; 104. Limiting plate; 2. Protective sleeve plate; 201. Auxiliary plate; 202. First spring; 203. Functional block; 204. Fixed plate; 205. Limiting rod; 206. Moving block; 207. Outer frame plate; 208. Support frame; 209. Support rod; 210. Second spring; 211. Fixed groove; 212. Moving groove; 213. Functional groove. Detailed Embodiment

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] By providing a steel pipe convex ring forming die in the embodiments of the present application, the problem that the concave ring position of the existing steel pipe convex ring forming die is prone to cracking during extrusion processing is solved.

[0028] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0029] The embodiments of the present utility model disclose a binding device for file arrangement.

[0030] According to the attached Figures 1-5 As shown, it includes a die body 1. An upper template 101 is movably arranged above the die body 1. A protection mechanism is arranged inside the upper template 101. The protection mechanism includes a protection sleeve plate 2, which is movably inserted into the upper template 101. The protection sleeve plate 2 is sleeved outside the steel pipe concave ring. An auxiliary plate 201 is arranged on the side of the protection sleeve plate 2. The auxiliary plate 201 is slidably arranged inside the upper template 101. The auxiliary plate 201 is used to support and limit the movement of the protection sleeve plate 2. A first spring 202 is arranged outside the auxiliary plate 201. The first spring 202 is used to drive the protection sleeve plate 2 to automatically return to its original position.

[0031] By sleeving the steel pipe outside the forming die 102, at this time, the steel pipe is located between the die body 1 and the upper template 101. There is an upward protruding block above the forming die 102. Then, the two sets of dies extrude the position of the steel pipe. At this time, the protruding block above the forming die 102 will extrude the steel pipe with the concave position inside the upper template 101, so that the steel pipe forms a concave ring inside the upper template 101, thus completing the forming of the steel pipe convex ring.

[0032] On both sides of the mold body 1, there are limit plates 104 fixedly connected. The upper template 101 is slidably arranged on the side of the limit plate 104. An forming die 102 is arranged outside the mold body 1. The forming die 102 is arranged below the upper template 101. A hydraulic push rod 103 is arranged above the upper template 101. A moving block 206 is fixedly connected to the outside of the protective sleeve plate 2. A moving groove 212 is opened inside the upper template 101. The moving block 206 is slidably connected inside the moving groove 212. A function groove 213 is opened inside the upper template 101. The inside of the function groove 213 is in communication with the inside of the moving groove 212. An auxiliary plate 201 is slidably connected inside the function groove 213.

[0033] A fixed plate 204 is fixedly connected inside the moving groove 212. The auxiliary plate 201 is slidably connected to the side of the fixed plate 204. The auxiliary plate 201 is fixedly connected to the side of the moving block 206. A limit rod 205 is fixedly connected inside the function groove 213. The top end of the limit rod 205 is fixedly connected below the fixed plate 204. The first spring 202 is movably sleeved outside the limit rod 205. The bottom end of the first spring 202 is fixedly connected to the outside of the auxiliary plate 201. The top end of the first spring 202 is fixedly connected below the fixed plate 204.

[0034] An outer frame plate 207 is fixedly connected above the auxiliary plate 201. A support frame 208 is slidably connected inside the outer frame plate 207. A function block 203 is fixedly connected to the outside of the support frame 208. A support rod 209 is fixedly connected inside the outer frame plate 207. The second spring 210 is movably sleeved outside the support rod 209. The end of the second spring 210 is fixedly connected to the inside of the support frame 208. The other end of the second spring 210 is fixedly connected to the inside of the outer frame plate 207. A fixed groove 211 is opened on one side of the upper template 101. The function block 203 is movably clamped inside the fixed groove 211.

[0035] By sleeving a steel pipe outside the forming die 102 and pushing the functional block 203 into the inside of the upper template 101 from the position of the fixed groove 211, at this time, the tension generated by the first spring 202 drives the protective sleeve plate 2 to move, so that the protective sleeve plate 2 is sleeved outside the convex block above the forming die 102. At the same time, the protective sleeve plate 2 abuts against the outer surface of the steel pipe. Subsequently, the hydraulic push rod 103 pushes the upper template 101 downward, so that the upper template 101 squeezes the steel pipe downward. At this time, the steel pipe moves toward the position of the mold body 1. At the same time, when the steel pipe moves downward, an extrusion force is generated at the convex position of the forming die 102, so that a convex ring is formed above the steel pipe. At this time, the protective sleeve plate 2 is sleeved at the position of the convex ring above the steel pipe, and the protective sleeve plate 2 moves into the inside of the upper template 101 along with the position of the steel pipe. At this time, the protective sleeve plate 2 drives the moving block 206 and the auxiliary plate 201 to move, and the auxiliary plate 201 squeezes the first spring 202 together with the fixed plate 204 at this time, until the convex ring of the steel pipe enters the inside of the upper template 101, and the position of the functional block 203 also moves to the position of the fixed groove 211. At this time, the functional block 203 loses the extrusion force from the inner wall of the functional groove 213, so that the support frame 208 loses the extrusion force on the second spring 210, so that the second spring 210 generates tension and pushes the functional block 203 to be clamped inside the fixed groove 211.

[0036] By fixing the protective sleeve plate 2 inside the upper template 101, and then the hydraulic push rod 103 drives the upper template 101 to move upward until the processed steel pipe can be taken out. By setting the protective sleeve plate 2, the outside of the convex ring is supported and protected when the convex ring is initially formed, reducing the outward expansion force of the convex ring, so as to avoid cracking of the convex ring during the forming process. At the same time, the protective sleeve plate 2 can move along with the position of the steel pipe and stays inside the upper template 101 after the convex ring of the steel pipe is processed, without affecting the normal use of the mold body 1.

[0037] In summary, compared with the prior art, the following beneficial effects are achieved:

[0038] By sleeving a steel pipe outside the forming die 102 and sleeving the protective sleeve plate 2 outside the convex block above the forming die 102, and then the hydraulic push rod 103 pushes the upper template 101 downward. At this time, the protective sleeve plate 2 moves along with the steel pipe until the protective sleeve plate 2 moves into the inside of the upper template 101, and then the functional block 203 is movably clamped into the inside of the fixed groove 211 along with the tension of the second spring 210. Subsequently, the processed steel pipe can be taken out. By setting the protective sleeve plate 2, the outside of the convex ring is supported and protected when the convex ring is initially formed, reducing the outward expansion force of the convex ring, so as to avoid cracking of the convex ring during the forming process. At the same time, the protective sleeve plate 2 stays inside the upper template 101 after the convex ring of the steel pipe is processed, without affecting the normal use of the mold body 1.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all such changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. A steel pipe convex ring forming die, comprising a die body (1), an upper die plate (101) being movably arranged above the die body (1), characterized in that: A protection mechanism is provided inside the upper template (101), and the protection mechanism comprises: A protective sleeve plate (2) is movably inserted into the interior of the upper template (101), and the protective sleeve plate (2) is sleeved onto the exterior of the concave ring of the steel pipe; An auxiliary plate (201) is arranged on the side of the protective sleeve plate (2), the auxiliary plate (201) is slidably arranged inside the upper template (101), and the auxiliary plate (201) is used to support and limit the movement of the protective sleeve plate (2); A first spring (202) is arranged outside the auxiliary plate (201), and the first spring (202) is used to drive the protective sleeve plate (2) to automatically return to its original position.

2. The steel pipe convex ring forming die according to claim 1, characterized in that: The two sides of the mold body (1) are fixedly connected to the limit plates (104), the upper mold plate (101) is slidably arranged on the side of the limit plates (104), the outside of the mold body (1) is provided with a forming mold (102), the forming mold (102) is arranged below the upper mold plate (101), and a hydraulic push rod (103) is arranged above the upper mold plate (101).

3. The steel pipe convex ring forming die according to claim 1, characterized in that: A moving block (206) is fixedly connected to the outer side of the protective sleeve plate (2), a moving groove (212) is provided inside the upper template (101), and the moving block (206) is slidably connected inside the moving groove (212).

4. The steel pipe convex ring forming die according to claim 1, characterized in that: A functional groove (213) is provided inside the upper template (101), the inside of the functional groove (213) is connected to the inside of the movable groove (212), and the auxiliary plate (201) is slidably connected inside the functional groove (213).

5. The steel pipe convex ring forming die according to claim 4, characterized in that: A fixed plate (204) is fixedly connected inside the movable groove (212), the auxiliary plate (201) is slidably connected to the side of the fixed plate (204), and the auxiliary plate (201) is fixedly connected to the side of the movable block (206).

6. The steel pipe convex ring forming die according to claim 4, characterized in that: The interior of the functional slot (213) is fixedly connected to a limiting rod (205), the top end of the limiting rod (205) is fixedly connected to the bottom of the fixing plate (204), the first spring (202) is movably sleeved on the outside of the limiting rod (205), the bottom end of the first spring (202) is fixedly connected to the outside of the auxiliary plate (201), and the top end of the first spring (202) is fixedly connected to the bottom of the fixing plate (204).

7. The steel pipe convex ring forming die according to claim 1, characterized in that: An outer frame plate (207) is fixedly connected above the auxiliary plate (201), a support frame (208) is slidably connected inside the outer frame plate (207), and a functional block (203) is fixedly connected outside the support frame (208).

8. The steel pipe convex ring forming die according to claim 7, characterized in that: A support rod (209) is fixedly connected to the inside of the outer frame plate (207), and a second spring (210) is movably sleeved on the outside of the support rod (209), an end of the second spring (210) is fixedly connected to the inner side of the support frame (208), and the other end of the second spring (210) is fixedly connected to the inside of the outer frame plate (207).

9. The steel pipe convex ring forming die according to claim 7, characterized in that: A fixing groove 2 (11) is provided on one side of the upper template (101), and the functional block (203) is movably engaged in the fixing groove (211).

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