CN116237580A - Pipe end machining and unloading integrated equipment - Google Patents

Abstract

The invention provides pipe end machining and blanking integrated equipment, which comprises a workbench, a feeding mechanism arranged on the workbench, a stretch-breaking and breaking mechanism arranged on one side of the feeding mechanism, and a pipe end machining mechanism arranged on the workbench, wherein the feeding mechanism comprises a movable feeding car arranged on the workbench, a first calibration group arranged on the workbench and a second calibration group arranged on the workbench, the first calibration group comprises a plurality of first rotating wheels distributed in a staggered manner along the vertical direction, the second calibration group comprises a plurality of second rotating wheels distributed in a staggered manner along the horizontal direction, and one end of a pipe sequentially passes through the first calibration group and the second calibration group and then is arranged at the feeding car; the breaking and breaking mechanism comprises a cutting assembly, a breaking assembly and a breaking assembly which are distributed in sequence, wherein the cutting assembly comprises a cutter disc which is rotatably arranged, and a cutter arranged on the cutter disc, a through hole is formed in the center of the cutter disc, and when one end of a pipe penetrates through the through hole and moves to a processing position, the cutter disc rotates to enable the cutter to conduct preliminary cutting on the periphery of the pipe.

Description

Pipe end machining and unloading integrated equipment

Technical Field

The invention relates to the field of pipe processing equipment, in particular to pipe end processing and blanking integrated equipment.

Background

The demands for pipes in the existing market are increased increasingly, and the existing pipe processing equipment is often used for separate processing when the blanking and pipe end processing are carried out, manual carrying is needed in the middle, and equipment which is broken or broken after the long pipe and the short pipe are processed can not be met at the same time, so that the blanking after the pipe end processing can not be realized after the pipe length is processed, and the existing pipe processing equipment is low in efficiency in the single processing and carrying processes.

Disclosure of Invention

The invention aims to provide pipe end processing and blanking integrated equipment for solving the technical problems.

In order to solve the technical problems, the invention provides pipe end machining and blanking integrated equipment, which comprises a workbench, a feeding mechanism arranged on the workbench, a breaking and breaking mechanism arranged on one side of the feeding mechanism, and a pipe end machining mechanism arranged on the workbench, wherein the feeding mechanism comprises a movable feeding car arranged on the workbench, a first calibration group arranged on the workbench and a second calibration group arranged on the workbench, the first calibration group comprises a plurality of first rotating wheels which are distributed in a staggered manner along the vertical direction, the second calibration group comprises a plurality of second rotating wheels which are distributed in a staggered manner along the horizontal direction, and one end of a pipe sequentially passes through the first calibration group and the second calibration group and then is arranged at the feeding car; the breaking and breaking mechanism comprises a cutting assembly, a breaking assembly and a breaking assembly which are distributed in sequence, wherein the cutting assembly comprises a cutter disc which is rotatably arranged, and a cutter arranged on the cutter disc, a through hole is formed in the center of the cutter disc, and when one end of a pipe penetrates through the through hole and moves to a processing position, the cutter disc rotates to enable the cutter to conduct preliminary cutting on the periphery of the pipe.

Further, the stretch-breaking assembly comprises a movably arranged stretch-breaking seat, a stretch-breaking lower clamping die arranged on the stretch-breaking seat, and a stretch-breaking upper clamping die which is arranged on the stretch-breaking seat and can be close to or far away from the stretch-breaking lower clamping die, wherein when the pipe is subjected to stretch-breaking processing, the stretch-breaking upper clamping die and the stretch-breaking lower clamping die clamp one end of the pipe.

Further, break the subassembly including locating breaking seat, locating breaking lower die clamp of breaking on the seat of breaking, locating breaking on the seat and can be close to or the breaking upper die clamp of keeping away from for breaking lower die clamp, when the tubular product breaks the processing, break upper die clamp and break lower die clamp and hold fixed tubular product one end.

Further, breaking the liftable mould mount pad that is equipped with in seat one side, breaking mould mount pad one side and installing and breaking the mould, and breaking the mould and have the recess, the recess opening part corresponds to break down the clamp mould and break the clamping position of clamp mould.

Further, break and be connected with on the seat and break the mould mounting panel, break and offer two at least guiding holes on the mould mounting panel, break and be equipped with two at least guide bars on the mould mounting seat, the guide bar one-to-one wears to establish through the guiding hole.

Further, the pipe end machining mechanism comprises a fixing plate which is arranged in a lifting mode, a die holder which is arranged on the fixing plate and can be close to or far away from the port of the pipe, and a die which is arranged on the die holder and corresponds to the port of the pipe.

Further, the pipe end processing mechanism further comprises a material guiding pipe arranged on the fixing plate, and when the fixing plate is lifted up and down, the material guiding pipe and the stamping die are mutually switched to correspond to the pipe port.

Further, a plurality of guide holes are formed in the fixing plate, a plurality of guide rods are arranged on the punching die base, and the guide rods penetrate through the guide holes.

Further, the pipe end machining mechanism further comprises a first receiving hopper, and the first receiving hopper is located at the lower side of one end, far away from the pipe, of the material guiding pipe.

Further, a second receiving hopper is arranged on the workbench and is positioned at the lower side of one end of the pipe close to the die.

The invention has the beneficial effects that:

1. the first calibration group, the second calibration group and the feeding car are matched, so that the axial direction of the pipe can be calibrated while the pipe is automatically fed, the pipe is ensured to be straight enough, and the subsequent pipe processing effect is facilitated;

2. the pipe is subjected to preliminary cutting processing through the cutting assembly, and the periphery of the pipe is pre-cut on the basis that the pipe is not cut off directly, so that the pipe can be easily broken by the breaking assembly and the stretch-breaking assembly, and inward flanging of the pipe during cutting is effectively reduced;

3. the cooperation of the breaking assembly and the breaking assembly can be adaptively broken for pipes with different lengths, so that the condition that the pipes are too short or too long to be suitable is avoided;

4. through the up-down lifting of the fixing plate, the material guiding pipe and the stamping die can be switched and moved to the position corresponding to the pipe port, so that the alignment between the stamping die and the port is ensured to be accurate enough when the stamping die is used for stamping, and the stamping die can be ensured to avoid the blanking position when the material guiding pipe is used for blanking the pipe;

5. the cooperation of first hopper and second hopper that connects is used, can guarantee that tubular product no matter break or stretch-break the circumstances, all can fall into in the hopper of predetermineeing.

Drawings

Fig. 1 is a general assembly view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a top view of the feed mechanism of the present invention.

Fig. 4 is an isometric view of a cutting assembly of the present invention.

Fig. 5 is a side view of a cutting assembly of the present invention.

Fig. 6 is an isometric view of a snap-off assembly, break-away assembly of the present invention.

Fig. 7 is a schematic structural view of the snap-apart assembly of the present invention.

Fig. 8 is a schematic view of the structure of the breaking assembly of the present invention.

Figure 9 is an isometric view of the tube end machining mechanism of the present invention.

Figure 10 is a schematic view of a fixture plate in a tube end processing mechanism of the present invention.

FIG. 11 is a flow chart of the pipe break process of the present invention.

Fig. 12 is a flow chart of the pipe stretch breaking process of the present invention.

Fig. 13 is a flow chart of the pipe section processing and breaking process of the present invention.

Fig. 14 is a flow chart of the pipe section processing and stretch-breaking processing of the present invention.

Reference numerals: 1. a work table; 2. a feeding mechanism; 21. a feeding car; 22. a first wheel; 23. a second wheel; 3. breaking and breaking the mechanism; 31. a cutterhead; 32. a cutter; 33. a through hole; 34. a breaking seat; 35. breaking the lower clamping die; 36. breaking the upper clamping die; 37. breaking the seat; 38. breaking the lower clamping die; 39. breaking the upper clamping die; 310. breaking the die mounting seat; 311. breaking the mould; 312. a groove; 313. breaking the die mounting plate; 314. a guide hole; 315. a guide rod; 4. a pipe end processing mechanism; 41. a fixing plate; 42. a die holder; 43. stamping die; 44. a material guiding pipe; 45. a guide hole; 46. a guide rod; 47. a first receiving hopper; 48. a second receiving hopper; 5. and (5) a pipe.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

As shown in fig. 1-14, the invention provides a pipe end machining and blanking integrated device, which comprises a workbench 1, a feeding mechanism 2 arranged on the workbench 1, a stretch-breaking and breaking mechanism 3 arranged on one side of the feeding mechanism 2, and a pipe end machining mechanism 4 arranged on the workbench 1, wherein the feeding mechanism 2 comprises a movable feeding car 21 arranged on the workbench 1, a first calibration group arranged on the workbench 1 and a second calibration group arranged on the workbench, the first calibration group comprises a plurality of first rotating wheels 22 distributed in a staggered manner along the vertical direction, the second calibration group comprises a plurality of second rotating wheels 23 distributed in a staggered manner along the horizontal direction, and one end of a pipe 5 sequentially passes through the first calibration group and the second calibration group and is then arranged at the feeding car 21; the breaking and breaking mechanism 3 comprises a cutting assembly, a breaking assembly and a breaking assembly which are distributed in sequence, wherein the cutting assembly comprises a cutter disc 31 which is rotatably arranged and a cutter 32 which is arranged on the cutter disc 31, a through hole 33 is formed in the center of the cutter disc 31 in a penetrating mode, and when one end of the pipe 5 passes through the through hole 33 and moves to a machining position, the cutter disc 31 rotates to enable the cutter 32 to perform preliminary cutting on the periphery of the pipe 5.

Specifically, when the pipe is required to be processed, firstly, one end of the pipe is sequentially penetrated through a first calibration group and a second calibration group, the vertical direction of the pipe is calibrated and straightened through first rotating wheels distributed in a staggered manner in the vertical direction, the horizontal direction of the pipe is calibrated and straightened through second rotating wheels distributed in a staggered manner in the horizontal direction, so that the stability of the pipe in the subsequent processing process is ensured, then, after the end of the pipe is placed at a feeding car, the pipe is pulled to move through the feeding car, meanwhile, the subsequent pipe is continuously calibrated and straightened through the first calibration group and the second calibration group, and the end of the pipe is pulled and fed to a cutting assembly through the feeding car to wait for cutting processing; after the pipe feeding moves to the processing position, the end part of the pipe penetrates through the through hole, and the cutter is driven to perform preliminary cutting along the periphery of the pipe by the rotation of the cutter at the moment, and the periphery of the pipe is pre-cut on the basis of not cutting off the pipe so as to ensure the stability of subsequent breaking and stretch-breaking processing.

In an embodiment of the scheme, the feeding car reciprocates through screw transmission, and simultaneously, clamping mechanisms such as clamping jaws are arranged on the feeding car, and after the pipe is fixed through the clamping mechanisms, the feeding car feeds and pulls the pipe under the control of the screw transmission.

It is worth mentioning that the cutter disc is rotatably arranged on the cutter disc seat, and after one end of the pipe penetrates through the through hole, the cutter disc rotates relative to the cutter disc seat, and then the cutter disc drives the cutter to rotate along the periphery of the pipe, wherein the cutter disc is driven to rotate by the servo motor.

Preferably, the stretch-breaking assembly comprises a movably arranged stretch-breaking seat 34, a stretch-breaking lower clamping die 35 arranged on the stretch-breaking seat 34, and a stretch-breaking upper clamping die 36 arranged on the stretch-breaking seat 34 and capable of approaching to or separating from the stretch-breaking lower clamping die 35, wherein when the pipe 5 is subjected to stretch-breaking processing, one end of the pipe 5 is clamped and fixed by the stretch-breaking upper clamping die 36 and the stretch-breaking lower clamping die 35.

Specifically, after the feeding car carries out pay-off to tubular product, tubular product one end wears to establish through the intermediate position of stretch-off lower die and stretch-off upper die and remove to appointed position after, stretch-off upper die is close to and is located the tubular product in centre of stretch-off lower die for tubular product receives the centre gripping of stretch-off upper die and stretch-off lower die fixed, and then stretch-off seat moves to the position of keeping away from cutting assembly, and then moves tubular product to the position of keeping away from cutting assembly through stretch-off upper die and stretch-off lower die, because one side of tubular product precut position receives the spacing of feeding car, blade disc this moment, the opposite side receives the spacing of stretch-off upper die and stretch-off lower die for the fracture appears in tubular product precut position, and then accomplishes the stretch-off processing to tubular product.

In an embodiment of the scheme, the stretch-breaking seat is controlled to move through the oil cylinder to perform stretch-breaking operation, the bottom of the stretch-breaking seat and the bottom of the breaking seat are paved with guide rails, and the positions of the stretch-breaking seat and the breaking seat are controlled and adjusted through the servo motor.

The upper stretch-breaking clamping die is controlled to be close to or far away from the lower stretch-breaking clamping die through the oil cylinder, and semicircular grooves are formed in the positions of the upper stretch-breaking clamping die and the lower stretch-breaking clamping die for clamping the pipe, so that damage to the pipe cannot be caused during clamping of the pipe.

Preferably, the breaking assembly comprises a breaking seat 37 arranged on one side of the breaking seat 34, a breaking lower clamping die 38 arranged on the breaking seat 37, and a breaking upper clamping die 39 arranged on the breaking seat 37 and capable of approaching or separating from the breaking lower clamping die 38, wherein when the pipe 5 is broken, the breaking upper clamping die 39 and the breaking lower clamping die 38 clamp one end of the pipe 5.

Specifically, when the processing length of tubular product is shorter for breaking the subassembly and can't carry out the centre gripping to tubular product and breaking, select to break the subassembly and break the tubular product, wear to establish the tubular product through breaking the position between upper die and breaking lower die and remove to the processing position this moment equally through the stack pallet, break the upper die and be close to breaking lower die and carry out the centre gripping fixedly to the tubular product that is located the intermediate position afterwards, enough stability when guaranteeing to break the processing to the tubular product.

In an embodiment of this scheme, break and go up the clamp mould and be close to or keep away from breaking down the clamp mould through hydro-cylinder control to break and go up clamp mould and break down clamp mould to the position department of tubular product centre gripping, all be equipped with semi-circular recess, make when the tubular product centre gripping, can not cause the damage to the tubular product.

It is worth mentioning that when the selection of breaking processing and stretch-breaking processing is carried out to the tubular product of different processing length to this scheme, generally select 35mm-100 mm's tubular product length as breaking processing, select to use stretch-breaking processing when the tubular product length is greater than 100 mm.

Preferably, a breaking die mounting seat 310 is arranged on one side of the breaking seat 37 in a lifting manner, a breaking die 311 is arranged on one side of the breaking die mounting seat 310, the breaking die 311 is provided with a groove 312, and the opening of the groove 312 corresponds to the clamping positions of the breaking lower clamping die 38 and the breaking upper clamping die 39.

Specifically, after the upper clamping die is broken and the lower clamping die is broken to clamp and fix the pipe, the installation seat of the breaking die descends and drives the breaking die to be close to the pipe, so that one end of the pipe is located in the groove, at the moment, the position of the pipe pre-cutting is located between the groove and the breaking upper clamping die, the position of the pipe pre-cutting is broken downwards when the breaking die continues to drive the groove to break the pipe, and further the pipe is broken, and broken machining operation is completed.

In one embodiment of the present solution, the breaking die mount is lifted by a cylinder.

Preferably, the breaking base 37 is connected with a breaking die mounting plate 313, at least two guide holes 314 are formed in the breaking die mounting plate 313, at least two guide rods 315 are arranged on the breaking die mounting base 310, and the guide rods 315 penetrate through the guide holes 314 in a one-to-one correspondence manner.

Specifically, when breaking the mould mount pad and going up and down, carry out the mode of removing along the guiding hole through the guide bar and guide breaking the lift direction of mould mount pad, guarantee the stability of lift in-process.

Preferably, the pipe end machining mechanism 4 includes a fixing plate 41 arranged in a lifting manner, a die holder 42 arranged on the fixing plate 41 and capable of approaching to or separating from the port of the pipe 5, and a die 43 arranged on the die holder 42, wherein the die 43 corresponds to the port of the pipe 5.

Specifically, when the port of the pipe fitting needs to be subjected to necking or flaring, the pipe is not broken or pulled off after being pre-cut, the end part of the pipe is driven by the feeding vehicle to move to the stamping die processing position, then the fixing plate drives the stamping die holder and the stamping die to move up and down to the position corresponding to the pipe port, and then the stamping die holder is moved close to the pipe port, so that the stamping die performs necking or flaring on the pipe port.

The two sides of the fixing plate are movably connected with the guide rail, the lifting of the fixing plate is controlled through the air cylinder, the die holder is controlled to move close to or away from the pipe through the oil cylinder, and the die is detachably connected with the die holder, so that the corresponding die can be replaced when the port of the pipe needs flaring or necking.

Preferably, the pipe end processing mechanism 4 further includes a material guiding pipe 44 provided on the fixing plate 41, and when the fixing plate 41 is lifted up and down, the material guiding pipe 44 and the die 43 are mutually switched to correspond to the port of the pipe 5.

Specifically, when the pipe port is processed and the blanking is required, if the pipe length is enough, the stretch-breaking assembly is selected for stretch-breaking processing, the positions of the material guiding pipe and the stamping die are switched through the lifting of the fixing plate, so that the material guiding pipe moves to the position corresponding to the pipe port, at the moment, after the pipe pre-cutting position is pulled off by the stretch-breaking assembly, one processed end of the pipe can enter the material guiding pipe, most of the pipe can enter the material guiding pipe for temporary storage under the pulling action of the stretch-breaking assembly, and then under the condition that the subsequent pipe is pulled off, the pipe which is processed before is pushed, so that a plurality of pipes sequentially move to a designated storage area along the material guiding pipe.

It is worth mentioning that the pipe diameter of the material guiding pipe is slightly larger than the outer diameter of the pipe, so that the pipe can smoothly enter the material guiding pipe.

Preferably, the fixing plate 41 is provided with a plurality of guide holes 45, the die holder 42 is provided with a plurality of guide rods 46, and the guide rods 46 pass through the guide holes 45.

Specifically, in order to ensure the stability of movement of the die during the stamping process, the movement direction of the die holder is guided by the guide rod along the movement of the guide hole, so that the stability of movement of the die holder is ensured.

Preferably, the pipe end machining mechanism 4 further comprises a first receiving hopper 47, the first receiving hopper 47 being located at an underside of an end of the feed pipe 44 remote from the pipe 5.

Specifically, after a plurality of longer tubular products are pushed into the material guide pipe in sequence, in the continuous pushing process, the front tubular product can fall out from the other end of the material guide pipe and fall into the first material receiving hopper to store the workpiece with longer tubular product length.

Preferably, the workbench 1 is provided with a second receiving hopper 48, and the second receiving hopper 48 is positioned at the lower side of one end of the pipe 5 close to the die 43.

Specifically, when the pipe length is insufficient and the selected processing that breaks, the pipe can directly drop downwards after breaking the processing, so this scheme sets up the second and connects the material mouth, and the second connects the hopper to be located the pipe chute and be close to the one end downside of die for when the pipe is broken down, can directly fall into the second and connect the hopper, and then connect hopper and second to connect the hopper to distinguish the storage to the pipe that the length is different through first.

The present invention is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present invention, however, any change in shape or structure of the product is within the scope of the present invention, and all the products having the same or similar technical solutions as the present application are included.

Claims (10)

1. The utility model provides a pipe end processing and unloading integration equipment which characterized in that: the pipe end machining device comprises a workbench (1), a feeding mechanism (2) arranged on the workbench (1), a breaking and breaking mechanism (3) arranged on one side of the feeding mechanism (2) and a pipe end machining mechanism (4) arranged on the workbench (1), wherein the feeding mechanism (2) comprises a movable feeding car (21) arranged on the workbench (1), a first calibration group arranged on the workbench (1) and a second calibration group arranged on the workbench, the first calibration group comprises a plurality of first rotating wheels (22) distributed in a staggered manner along the vertical direction, the second calibration group comprises a plurality of second rotating wheels (23) distributed in a staggered manner along the horizontal direction, and one end of a pipe (5) sequentially passes through the first calibration group and the second calibration group and then is arranged at the feeding car (21); the breaking and breaking mechanism (3) comprises a cutting assembly, a breaking assembly and a breaking assembly which are distributed in sequence, wherein the cutting assembly comprises a cutter disc (31) which is rotatably arranged and a cutter (32) arranged on the cutter disc (31), a through hole (33) is formed in the center of the cutter disc (31), and when one end of a pipe (5) passes through the through hole (33) and moves to a machining position, the cutter disc (31) rotates to enable the cutter (32) to primarily cut the periphery of the pipe (5).

2. The integrated pipe end machining and blanking apparatus according to claim 1, characterized in that: the breaking assembly comprises a breaking seat (34) which is movably arranged, a breaking lower clamping die (35) which is arranged on the breaking seat (34), and a breaking upper clamping die (36) which is arranged on the breaking seat (34) and can be close to or far away from the breaking lower clamping die (35), wherein when the pipe (5) is subjected to breaking processing, one end of the pipe (5) is clamped and fixed by the breaking upper clamping die (36) and the breaking lower clamping die (35).

3. The integrated pipe end machining and blanking apparatus according to claim 2, characterized in that: the breaking assembly comprises a breaking seat (37) arranged on one side of the breaking seat (34), a breaking lower clamping die (38) arranged on the breaking seat (37), and a breaking upper clamping die (39) arranged on the breaking seat (37) and capable of being close to or far away from the breaking lower clamping die (38), wherein when the pipe (5) is broken, the breaking upper clamping die (39) and the breaking lower clamping die (38) clamp one end of the fixed pipe (5).

4. A pipe end machining and blanking integrated apparatus according to claim 3, characterized in that: the breaking base (37) is provided with a breaking die mounting base (310) in a lifting manner, a breaking die (311) is mounted on one side of the breaking die mounting base (310), the breaking die (311) is provided with a groove (312), and the opening of the groove (312) corresponds to the clamping position of the breaking lower clamping die (38) and the breaking upper clamping die (39).

5. The integrated pipe end machining and blanking apparatus according to claim 4, characterized in that: the breaking seat (37) is connected with a breaking mould mounting plate (313), at least two guide holes (314) are formed in the breaking mould mounting plate (313), at least two guide rods (315) are arranged on the breaking mould mounting seat (310), and the guide rods (315) correspondingly penetrate through the guide holes (314) one by one.

6. The integrated pipe end machining and blanking apparatus according to claim 1, characterized in that: the pipe end machining mechanism (4) comprises a fixing plate (41) which is arranged in a lifting mode, a die seat (42) which is arranged on the fixing plate (41) and can be close to or far away from the port position of the pipe (5), and a die (43) which is arranged on the die seat (42), wherein the die (43) corresponds to the port of the pipe (5).

7. The integrated pipe end machining and blanking apparatus according to claim 6, characterized in that: the pipe end machining mechanism (4) further comprises a material guide pipe (44) arranged on the fixed plate (41), and when the fixed plate (41) is lifted up and down, the material guide pipe (44) and the stamping die (43) are mutually switched to correspond to the port of the pipe (5).

8. The integrated pipe end machining and blanking apparatus according to claim 6, characterized in that: a plurality of guide holes (45) are formed in the fixing plate (41), a plurality of guide rods (46) are arranged on the die seat (42), and the guide rods (46) penetrate through the guide holes (45).

9. The integrated pipe end machining and blanking apparatus according to claim 7, characterized in that: the pipe end machining mechanism (4) further comprises a first receiving hopper (47), and the first receiving hopper (47) is located at the lower side of one end, far away from the pipe (5), of the material guiding pipe (44).

10. The integrated pipe end machining and blanking apparatus according to claim 6, characterized in that: the workbench (1) is provided with a second receiving hopper (48), and the second receiving hopper (48) is positioned at the lower side of one end of the pipe (5) close to the die (43).

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