WO2022028015A1 - Pipe fitting cold heading extrusion forming mechanism - Google Patents

Abstract

A pipe fitting cold heading extrusion forming mechanism, comprising an installation frame (201), a die holder (238) and a die. The installation frame (201) is fixed on a base (5); the die holder (238) is fixed on the installation frame (201); the die comprises a male die (234), a female die lower recessed die piece (232) and a female die upper recessed die piece (233), wherein the female die lower recessed die piece (232) is fixed on the die holder (238), the female die upper recessed die piece (233) is fixed on the installation frame (201) by means of a first pushing mechanism (202), the male die (234) is arranged on the die holder (238) in a sliding manner and is aligned with the female die upper recessed die piece (233) and the female die lower recessed die piece (232), the male die (234) is driven by a second pushing mechanism (203) fixed to the installation frame (201), the other side of the female die lower recessed die piece (232) is further provided with a supporting assembly (29) and a third pushing mechanism (28), the third pushing mechanism (28) pushes a pipe fitting to be subjected to extrusion forming inside the die, and the male die (234) is further provided with a core rod (235); and grabbing and moving mechanisms (22) are further arranged on two sides of the installation frame (201).

Description

A cold heading extrusion forming mechanism for pipe fittings technical field

The utility model relates to the field of pipe fitting processing equipment, in particular to a cold heading extrusion forming mechanism for a pipe fitting.

Background technique

At present, the end extrusion molding of pipe fittings is mostly realized manually, which has the problems of low efficiency and high cost, and the product quality cannot be guaranteed due to the difference in the proficiency of the operators, which cannot meet the needs of mass production. Some pipe extrusion forming devices are used, but the pipe fittings cannot be prevented from being damaged or surface strained after extrusion forming, and the outer wall of the pipe fitting material will overflow with stroke burrs or turn over. In addition, the existing pipe fitting extrusion molding device has a low degree of automation and low production efficiency.

technical problem

At present, the end extrusion molding of pipe fittings is mostly realized manually, which has the problems of low efficiency and high cost, and the product quality cannot be guaranteed due to the difference in the proficiency of the operators, which cannot meet the needs of mass production. Some pipe extrusion forming devices are used, but the pipe fittings cannot be prevented from being damaged or surface strained after extrusion forming, and the outer wall of the pipe fitting material will overflow with stroke burrs or turn over. In addition, the existing pipe fitting extrusion molding device has a low degree of automation and low production efficiency.

technical solutions

 In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a cold heading extrusion forming mechanism for pipe fittings, which can realize automatic feeding, extrusion, and unloading operations of pipe fittings, greatly improve the efficiency, and process the pipe fittings. Good quality.

In order to realize the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

A cold heading extrusion forming mechanism for pipe fittings, comprising a mounting frame, a die base and a die, the mounting frame is fixed on the base, the die base is fixed on the mounting frame, the die comprises a male die and a female die, the The male mold is a male mold, the female mold is a female mold, and the female mold includes a lower female mold and an upper female mold. The female lower female mold is fixed on the mold base, and the female upper female mold is concave The mold is fixed on the installation frame by the first pushing mechanism, and the first pushing mechanism makes the upper female mold of the female mold and the lower female mold of the female mold spliced together. The lower die is aligned, the male die is driven by a second push mechanism fixed on the mounting frame, the other side of the female die is also provided with a support assembly and a third push mechanism, the third push The mechanism pushes the pipe to be extruded into the mold, and the male mold is also provided with a mandrel for inserting into the pipe; both sides of the mounting frame are also provided with two groups for feeding the pipe into and out of the mold. Grab the mobile mechanism.

As a preferred solution, a loading and unloading mechanism is also provided on the base, and the loading and unloading structure includes a transfer frame, a supporting plate and a lifting mechanism. connected, the transfer frame is sleeved on the lower female die of the female mold, and is slidably arranged on the support plate, and the transfer frame is further provided with a plurality of notches for limiting the position of the pipe fittings.

As a preferred solution, a ninth push mechanism for driving the transfer frame is also fixed on the support plate, and a buffer member is also provided on one side of the ninth push mechanism.

As a preferred solution, the lifting mechanism includes a fifth pushing mechanism, a lifting plate and a rotating shaft, the fifth pushing mechanism is fixed on the base, the fifth pushing mechanism is connected to the first rack slidably arranged on the base, and two The lift plates are respectively slidably arranged on both sides of the installation frame, the top of the lift plate is fixed with the support plate, a second rack is also fixed on the outside of the lift plate, the installation frame is provided with a rotating shaft, and both ends of the rotating shaft First gears are respectively fixed, and one end of the rotating shaft close to the first rack is also provided with a second gear, the first gear and the second rack are engaged, and the second gear is engaged with the first rack.

As a preferred solution, the bottom of the supporting plate is fixed to the lifting plate through an L-shaped fixing block.

As a preferred solution, the upper female die of the female mold is further provided with a first guide column, and the lower female die of the female mold is provided with a matching positioning groove.

As a preferred solution, one side of the male mold is further provided with a second proximity switch for detecting whether the male mold is in place, and the lower female mold of the female mold is also provided with a proximity switch for detecting whether the pipe is in place.

As a preferred solution, the grasping and moving mechanism includes a sliding rail, a lifting cylinder, a grasping cylinder and a pushing device, the lifting cylinder is slidably arranged on the sliding rail through a mounting plate, and is driven by the pushing device, and the grasping cylinder is fixed On the piston rod of the lifting cylinder, the grabbing cylinder transfers the pipe to the loading and unloading mechanism through the lifting and sliding operation.

As a preferred solution, the first pushing mechanism, the second pushing mechanism, the third pushing mechanism, the fifth pushing mechanism and the ninth pushing mechanism are any one of an air cylinder, a hydraulic cylinder, and an electric cylinder.

beneficial effect

In the mechanism of the utility model, in the extrusion molding of pipe fittings, the female mold is designed to be opened and closed, the male mold is installed with a control rod to prevent the variation of the inner diameter, and the male mold is designed as a male mold, which is designed to be tightly matched with the female mold and the female mold to prevent the molding process. There are gaps in the male and female molds that cause material to overflow to form burrs or tumbles. In addition, the design of the opening and closing master mold and the grasping and moving mechanism cooperate to facilitate the automatic feeding and unloading of pipe fittings, which reduces manual intervention and improves efficiency.

Description of drawings

 Figure 1 is a schematic diagram of the overall structure of an automatic pipe fitting processing machine;

Figure 2 is a schematic diagram of the overall structure of the fully automatic pipe fitting processing machine at an angle after the outer cover is removed;

Figure 3 is a schematic diagram of the overall structure of the fully automatic pipe fitting processing machine from another angle after the outer cover is removed;

Fig. 4 is the structural schematic diagram of the material storage device of the automatic pipe fitting processing machine;

Fig. 5 is the structural schematic diagram of removing the side plate of the material storage device of the automatic pipe fitting processing machine;

Figure 6 is an enlarged view of the partial structure of the material storage device of the automatic pipe fitting processing machine;

Fig. 7 is the structural schematic diagram 1 of the cold heading extrusion forming device of the automatic pipe fitting processing machine;

Fig. 8 is the second structural schematic diagram of the cold heading extrusion molding device of the automatic pipe fitting processing machine;

Fig. 9 is the structural schematic diagram 3 of the cold heading extrusion forming device of the automatic pipe fitting processing machine;

Fig. 10 is the structural schematic diagram 1 of the loading and unloading mechanism and the mold of the cold heading extrusion molding device of the automatic pipe fitting processing machine;

Fig. 11 is the second structural schematic diagram of the loading and unloading mechanism and the mold of the cold heading extrusion device of the automatic pipe fitting processing machine;

Fig. 12 is the structural schematic diagram three of the loading and unloading mechanism and the mold of the cold heading extrusion molding device of the automatic pipe fitting processing machine;

Figure 13 is a schematic diagram 1 of the matching structure of the male die and the female die of the cold heading extrusion device of the automatic pipe fitting processing machine;

Fig. 14 is the second schematic diagram of the matching structure of the male die and the female die of the cold heading extrusion device of the automatic pipe fitting processing machine;

Figure 15 is a schematic structural diagram of a pipe cutting device of an automatic pipe processing machine;

Fig. 16 is a partial structural schematic diagram 1 of the pipe cutting device of the automatic pipe fitting processing machine;

Fig. 17 is a second partial structural schematic diagram of the pipe cutting device of the automatic pipe processing machine.

The reference signs are: 1. Material storage device; 11. Fixed frame; 12. Material storage bucket; 111. Sixth push mechanism; 116, support block; 117, first proximity switch; 118, buffer block; 2, cold heading extrusion molding device; 201, mounting frame; 202, first push mechanism; 203, second push mechanism; 21 211, the fifth push mechanism; 212, the first rack; 213, the lifting plate; 214, the second rack; 215, the first gear; 216, the second gear; 217, the shaft; 218, the fixed block ; 22, grab and move mechanism; 24, transfer frame; 241, limit notch; 25, support plate; 26, ninth push mechanism; 27, buffer part; 28, third push mechanism; 29, support assembly; 231, Male mold fixing slider; 232, lower female mold; 233, upper female mold; 234, male mold; 235, mandrel; 236, second proximity switch; 237, first guide column; 238, mold base 3. Pipe incision device; 301, welding base; 302, slider; 303, incision positioning plate; 304, eighth push mechanism; 305, first support seat; 306, support plate; 307, support frame; 4. Pushing mechanism; 309, seventh pushing mechanism; 310, second support seat; 311, punching plate; 312, second guide column; 313, cutter; 314, sensor; 315, third proximity switch; 4, outer cover 5, the base.

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in Figures 1 to 3, a fully automatic pipe processing machine includes a material storage device 1, a cold heading extrusion device 2, a pipe cutting device 3 and a base 5. The material storage device 1, the pipe cutting device 3 They are respectively arranged on both sides of the cold heading extrusion molding device 2, the base 5 is also provided with a cover 4, the material storage device 1 is located outside the cover 4, the cold heading extrusion molding device 2, the pipe fitting incision device 3 It is located in the housing 4 and fixed on the base 5 .

As shown in FIGS. 4 to 6 , the storage device 1 includes a fixing frame 11 and a storage bucket 12 arranged on the fixing frame. The storage bucket 12 is provided with a side close to the cold heading extrusion forming device 2 The first partition 114, the inner side of the first partition 114 is provided with a push rod 112, and the outer side is provided with a support block 116, the top surfaces of the first partition 114 and the top rod 112 are both high on the inside and low on the outside. The fixing frame 11 is also provided with a sixth pushing mechanism 111 for pushing the ejector rod 112 up and down. The bottom of the storage bucket 12 is also provided with a ramp plate 115 that is high inside and low outside, and the ramp plate 115 and the first partition plate 114 are formed. Accommodate clearance. When the ejector rod is lowered to the lowest position, the pipe fitting falls into the accommodation gap and is located at the top of the ejector rod.

The inner side of the top rod 112 is also provided with a second partition 113, and the height of the second partition 113 is smaller than that of the first partition 114, the inner side of the second partition is provided with a top rod, and the height of the internal top rod is Less than the height of the outer mandrel, the inner mandrel is also connected to the sixth pushing mechanism, and the inner mandrel and the top surface of the second partition are both high inside and low outside. One side of the support block 116 is further provided with a first proximity switch 117 for detecting whether the pipe is in place, and one side of the sixth pushing mechanism 111 is provided with a buffer block 118 . The above technical solution makes the storage device 1 form two stepped accommodating gaps, and pushes the pipe fittings into the support block in sequence through the ejector rod, waiting to be used, and the overall efficiency is improved.

As shown in FIGS. 7 to 14 , the cold heading extrusion molding machine includes an installation frame 201 , a die base 238 and a die. The installation frame 201 is fixed on the base 5 , and the die base 238 is fixed on the installation frame 201 . , the mold includes a male mold (234) and a female mold, the male mold (234) is a male mold, the female mold is a female mold, and the female mold includes a female lower female mold 232 and a female upper female mold 233, the lower female mold 232 of the female mold is fixed on the mold base 238, and the upper female mold 233 of the female mold is fixed to the mounting frame 201 by the first pushing mechanism 202, and the first pushing mechanism makes the upper female mold 233 of the female mold and The lower female mold 232 of the female mold is assembled, the upper female mold 233 of the female mold is further provided with a first guide column 237, and the lower female mold 232 of the female mold is provided with a matching positioning groove. The male mold 234 is slidably arranged on the mold base 5 and aligned with the upper female mold 233 and the female lower female mold 232. The male mold 234 is driven by the second pushing mechanism 203 fixed on the mounting frame 201, One side of the male mold fixing slider 231 is also provided with a second proximity switch 236 for detecting whether the male mold is in place, and the female mold lower die 232 is also provided with a proximity switch for detecting whether the pipe is in place. The other side of the lower female die 232 of the female die is also provided with a support assembly 29 and a third pushing mechanism 28. The third pushing mechanism 28 pushes the pipe to be extruded into the die. The male die 234 is also provided with a A mandrel 235 inserted into the pipe; the mandrel 235 supports the inner wall of the pipe to prevent the inner diameter of the pipe from changing after extrusion molding.

The two sides of the mounting frame 201 are also provided with two groups of grabbing and moving mechanisms 22 for feeding the pipe into and out of the mold, respectively. The grasping and moving mechanism 22 includes a sliding rail, a lifting cylinder, a grasping cylinder and a pushing device. The lifting cylinder is slidably arranged on the sliding rail through a mounting plate and is driven by the pushing device. The grasping cylinder is fixed on the lifting cylinder. on the piston rod.

The base 5 is also provided with a loading and unloading mechanism, and the loading and unloading structure includes a transfer frame 24, a supporting plate 25 and a lifting mechanism. The transfer frame 24 is sleeved on the lower female die 232 of the female die, and is slidably arranged on the support plate 25. The transfer frame is also provided with a plurality of notches 241 for limiting the position of the pipe. A ninth push mechanism 26 for driving the transfer frame 24 is also fixed on the support plate 25 , and a buffer member 27 is also provided on one side of the ninth push mechanism 26 .

The lifting mechanism includes a fifth pushing mechanism 211 , a lifting plate 213 and a rotating shaft 217 , the fifth pushing mechanism 211 is fixed on the base 5 , and the fifth pushing mechanism 211 is connected to a first rack slidably arranged on the base 2 . 212 , the two lifting plates 213 are respectively slidably arranged on both sides of the mounting frame 201 , and the bottom of the supporting plate 25 is fixed to the lifting plate 213 by an L-shaped fixing block 218 . A second rack 214 is also fixed on the outer side of the lift plate 213 , and a rotating shaft 217 is provided through the mounting frame 201 . The two ends of the rotating shaft 217 are respectively fixed with a first gear 216 , and the rotating shaft 217 is close to the first gear rack 212 . One end is also provided with a second gear 215 , the first gear 216 meshes with the second rack 214 , and the second gear 215 meshes with the first rack 212 .

The grabbing cylinder transfers the pipe on the support block of the storage device 1 to the transfer frame of the loading and unloading mechanism through the lifting and sliding operation, and is limited in the gap 241 at one end of the transfer frame, and the transfer frame is driven by the lifting mechanism. It rises to a position higher than the lower female die of the female mold, and then the ninth pushing mechanism 26 pushes the transfer frame to make the pipe align with the female lower female mold 232, and then the lifting mechanism lowers the transfer frame so that the pipe falls into the female lower female mold 232 and the lower female mold 232. In the support assembly 29, the upper female mold 233 of the female mold descends to limit the pipe fittings in the female mold, the male mold slides to clamp the female mold, and then is extruded under the action of the third pushing mechanism 28, and finally the loading and unloading mechanism The notch at the other end of the transfer frame 24 moves the extruded pipe out of the lower female die of the master mold, and then is sent to the pipe incision device 3 under the action of another group of grasping and moving mechanisms 22 .

As shown in FIGS. 15 to 17 , the pipe cutting device 3 includes a cutting positioning plate 303 , a fourth pushing mechanism 308 and a punching plate 311 , and the cutting positioning plate 303 for carrying the pipe is slidably arranged on the base 5 . The fourth pushing mechanism 308 is fixed on the base 5 through the support frame 307 , and the punching plate 311 is driven by the fourth pushing mechanism 308 to cut the pipe.

A welding base 301 is also fixed on the base 5 , the incision positioning plate 303 is slidably arranged on the welding base 301 through the cooperation of the guide rail and the slider 302 , and the welding base 301 is also fixed on the welding base 301 for driving the incision positioning plate 303 . Seven push bodies 309 .

One end of the incision positioning plate 303 is provided with a first support seat 305 , the other end of the incision positioning plate 303 is fixed with a support plate 306 , and a second support seat 310 is arranged on the support plate 306 . The seat 305 and the second support seat 310 are located on a straight line.

The first support seat 305 is slidably disposed on the slot positioning plate 303 , and the slot positioning plate 303 is further provided with an eighth pushing mechanism 304 for driving the first support seat 305 .

The support frame 307 is fixed on the welding base 301 through the bottom plate, the punching plate 311 is longitudinally slidably arranged on the bottom plate through the second guide column 312, and the punching plate 311 is provided with a cutting plate on the side facing the notch positioning plate 303. The knife 313 and the side of the support frame 307 facing the incision positioning plate 303 are provided with a limit plate, an arc-shaped gap is formed on the limit plate, and the second support base 310 is also provided with a matching arc-shaped gap. 

The incision positioning plate 303 is also provided with a sensor 314 for detecting whether the first support base 305 and the second support base 310 have pipe fittings, and the welding base is also provided with a third proximity switch for detecting whether the incision positioning plate 303 is in place. 315.

When the first support seat and the second support seat of the incision positioning plate 303 support pipe fittings, the seventh pushing mechanism 309 pushes the incision positioning plate under the limiting plate, so that one end of the pipe fitting is sleeved on the cutter, and the first The fourth push mechanism pushes the punching plate down, the cutter processes the pipe, and the eighth push mechanism adjusts the position of the first support seat, which can meet the cutting operation of pipes of different specifications.

The first push mechanism 202, the second push mechanism 203, the third push mechanism 28, the fourth push mechanism 308, the fifth push mechanism 26, the sixth push mechanism 111, the seventh push mechanism 309, and the eighth push mechanism described in this application The pushing mechanism 304 and the ninth pushing mechanism 26 use any one of an air cylinder, a hydraulic cylinder, and an electric cylinder.

The utility model realizes the automation of pipe fitting processing, and changes the traditional pipe fitting upsetting extrusion forming device, namely, a male die (a plane), a female die (female imitate), and the male die moves to extrude the material to form a female die The shape of the structure makes the quality of the pipe fittings produced by the machine of the utility model better.

In this patent, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a series of elements includes not only those elements, but also Include other elements not expressly listed, or which are inherent to such a process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprises" does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit of the technical solutions of the embodiments of the present invention and range.

Claims (9)

A cold heading extrusion forming mechanism for pipe fittings, characterized in that it comprises a mounting frame (201), a die base (238) and a die, the mounting frame (201) is fixed on a base (5), the die base (238) ) is fixed on the mounting frame (201), the mold includes a male mold (234) and a female mold, the male mold (234) is a male mold, the female mold is a female mold, and the female mold includes a female mold The female mold (232) and the upper female mold (233), the lower female mold (232) of the female mold is fixed on the mold base (238), and the upper female mold (233) of the female mold passes through the first pushing mechanism ( 202) is fixed on the mounting frame (201), and the first pushing mechanism makes the upper female mold (233) of the female mold and the lower female mold (232) of the female mold spliced together, and the male mold (234) is slidably arranged on the mold base (238) and aligned with the upper female mold (233) and the lower female mold (232) of the female mold, the male mold (234) is driven by the second pushing mechanism (203) fixed on the mounting frame (201), so The other side of the lower female die (232) of the female die is further provided with a support assembly (29) and a third push mechanism (28), the third push mechanism (28) pushes the pipe to be extruded into the mold, and the The male mold (234) is also provided with a mandrel (235) for inserting into the interior of the pipe; both sides of the mounting frame (201) are also provided with two groups of grabbing movements for feeding the pipe into and out of the mold, respectively. Institutions (22). The cold heading extrusion forming mechanism for pipe fittings according to claim 1, characterized in that the base (5) is further provided with a loading and unloading mechanism, and the loading and unloading mechanism comprises a transfer frame (24), a support plate ( 25) and a lifting mechanism, two supporting plates (25) are respectively arranged on both sides of the lower female die (232) of the female mold, and are connected with the lifting mechanism, and the transfer frame (24) is sleeved on the lower female mold (232) of the female mold. 232), and is slidably arranged on the supporting plate (25), and the transfer frame is also provided with a plurality of notches (241) for limiting the position of the pipe. The cold heading extrusion forming mechanism for pipe fittings according to claim 2, characterized in that, a ninth pushing mechanism (26) for driving the transfer frame (24) is also fixed on the supporting plate (25), and the No. A buffer member (27) is also provided on one side of the pushing mechanism (26). The cold heading extrusion forming mechanism for pipe fittings according to claim 2, wherein the lifting mechanism comprises a fifth pushing mechanism (211), a lifting plate (213) and a rotating shaft (217), and the fifth pushing mechanism The mechanism (211) is fixed on the base (5), the fifth pushing mechanism (211) is connected to the first rack (212) slidably arranged on the base (5), and the two lifting plates (213) are respectively slidably arranged on On both sides of the mounting frame (201), the top of the lifting plate (213) is fixed to the supporting plate (25), and a second rack (214) is also fixed on the outside of the lifting plate (213). 201) is provided with a rotating shaft (217) running through it, two ends of the rotating shaft (217) are respectively fixed with a first gear (216), and one end of the rotating shaft (217) close to the first rack (212) is also provided with a second gear (217). 215), the first gear (216) meshes with the second rack (214), and the second gear (215) meshes with the first rack (212). The cold heading extrusion forming mechanism for pipe fittings according to claim 4, characterized in that the bottom of the supporting plate (25) is fixed to the lifting plate (213) by an L-shaped fixing block (218). The cold heading extrusion molding mechanism for pipe fittings according to claim 1, characterized in that, a first guide column (237) is further provided on the upper female die (233) of the female die, and the lower female die of the female die is further provided with a first guide column (237). (232) is provided with a matching positioning groove. The cold heading extrusion molding mechanism for pipe fittings according to claim 1, characterized in that, a second proximity switch (236) for detecting whether the male mold is in place is further provided on one side of the male mold (234), and the The lower die (232) of the female die is also provided with a proximity switch for detecting whether the pipe is in place. The cold heading extrusion forming mechanism for pipe fittings according to claim 1, wherein the grabbing and moving mechanism (22) comprises a slide rail, a lifting cylinder, a grabbing cylinder and a pushing device, and the lifting cylinder is installed by installing The plate is slidably arranged on the slide rail and is driven by a pushing device, the grabbing cylinder is fixed on the piston rod of the lifting cylinder, and the grabbing cylinder transfers the pipe to the loading and unloading mechanism through the lifting and sliding operation. The cold heading extrusion molding mechanism for pipe fittings according to claim 4, characterized in that the first pushing mechanism (202), the second pushing mechanism (203), the third pushing mechanism (28), the fifth pushing mechanism The mechanism (211) and the ninth pushing mechanism (26) use any one of an air cylinder, a hydraulic cylinder, and an electric cylinder.