CN216096032U - Short pipe machine - Google Patents

Abstract

The utility model provides a short tube machine, which relates to the technical field of short tube machines and mainly comprises a heating station and a flaring station. Compared with the traditional flaring machine, the utility model has the greatest advantages that the flaring machine can perform flaring processing on the pipe with shorter length, which can not be completed by the common flaring machine, and is also suitable for flaring short pipes with different lengths in different ranges; the equipment is convenient to operate, flexible and simple; most accessories in the equipment are universal with common flaring machine accessories, so that the processing and manufacturing difficulty is reduced, the failure rate is obviously reduced, the energy is saved, the environment is protected, and the flaring machine is an advanced flaring machine specially designed for flaring short pipes.

Description

Short pipe machine

Technical Field

The utility model relates to the technical field of short pipe machines, in particular to a short pipe machine.

Background

Pipes are used for transporting various fluid substances, the cross section of the pipe is usually circular, and the pipe is also made into a special pipe with a non-circular cross section, the material for manufacturing the pipe is many, and metals such as steel, iron, copper and the like, and non-metals such as ceramics, plastics, rubber and the like are commonly used.

The flaring processing is carried out on the pipe with shorter length, which can not be finished by a common flaring machine and is not suitable for flaring of short pipes with different lengths in different ranges.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the flaring processing of a pipe with a shorter length cannot be finished by a common flaring machine and the flaring of short pipes with different lengths in different ranges is not suitable in the prior art, and provides a short pipe machine.

In order to achieve the purpose, the utility model adopts the following technical scheme: a short tube machine mainly comprises a heating station and an expanding station, wherein the heating station comprises a machine head frame, the surface of the machine head frame is provided with an electric box, the electric box is used for controlling a device circuit element, the left side of the machine head frame is provided with a pipeline limiting module A, the pipeline limiting module A comprises an upper rotating tube cylinder, an upper rotating tube motor, an upper rotating tube roller group, a rotating tube riding wheel group, a rotating tube adjusting hand wheel and a rotating tube adjusting screw rod, the surface of the rotating tube riding wheel group is in sliding connection with the machine head frame, the bottom end of the rotating tube riding wheel group is fixedly connected with the rotating tube adjusting screw rod, the surface thread sleeve of the rotating tube adjusting screw rod is provided with the rotating tube adjusting hand wheel, the surface of the rotating tube adjusting hand wheel is in rotating connection with the machine head frame, the left side of the machine head frame is fixedly connected with the upper rotating tube cylinder, the bottom end of the upper rotating tube cylinder is provided with the upper rotating tube rolling wheel group, an upper rotating pipe motor is fixedly mounted on the surface of the machine head frame, an output shaft of the upper rotating pipe motor is in transmission connection with an upper rotating pipe roller group through a chain wheel and chain transmission mode, pipes are placed between the upper rotating pipe roller group and a rotating pipe carrier roller group, an oven guide rail is fixedly connected in the machine head frame, the surface of the oven guide rail is connected with an oven in a sliding mode, heating pipes are uniformly arranged on the surface of the oven, a hydraulic stack is mounted in the machine head frame, an oven cylinder is mounted on the right side of the oven, and one side, away from the oven, of the oven cylinder is fixedly mounted with the machine head frame;

the flaring station comprises a die set, a die, a water tank, a flaring riding wheel set, a moving seat hand wheel, a moving seat, a lifting lead screw, a moving support, a moving line rail pair, a positioning pin, a die set guide rail, a die set roller, an unloading oil cylinder, a core pulling oil cylinder, a thrust oil cylinder, a vacuum pump, a vacuum air bag and an oil cooler, wherein the die set is connected on the die set guide rail in a sliding way, the water tank is arranged at the left end of the die set and is of a circular ring structure, the die is arranged in the water tank in a sliding way in an inserted way, the core pulling oil cylinder is arranged at the left side of the die, the core pulling oil cylinder is far away from one end of the die set and the die set installation, the thrust oil cylinder is arranged at the end of the die set far away from the die set and the die set installation, the vacuum pump, the vacuum air bag and the oil cooler are arranged in the die set frame, the flaring riding wheel set and the moving line rail pair are arranged on the die set frame, the upper end of the movable linear rail pair is connected with a movable support in a sliding mode, one side, close to the flaring support roller set, of the movable support is connected with a support block in a sliding mode in the vertical direction, the upper end of the support block is connected with a lifting lead screw in a rotating mode, and the surface of the lifting lead screw is connected with the movable support in a threaded mode.

Preferably, the bottom end of the oven is provided with a roller, the oven is in sliding connection with an oven guide rail by means of the roller, the bottom end of the rotating pipe support roller group is fixedly connected with two parallel round rods, the rotating pipe support roller group is in sliding connection with the machine head frame by means of the two round rods, and the sliding direction between the surface of the rotating pipe support roller group and the machine head frame is vertical to the vertical direction.

Preferably, the oven guide rail is horizontally arranged, the oven is positioned above the oven guide rail, and the horizontal line of the center of the oven and the midpoint of a connecting line between the upper rotary pipe roller group and the rotary pipe support roller group are on the same horizontal plane.

Preferably, a plurality of tugs are uniformly arranged above the rotating pipe support wheel set, and the plurality of tugs are of arc structures with upward openings and are used for supporting pipelines.

Preferably, the upper rotary pipe roller set consists of three surface rollers and a belt, two of the three surface rollers are positioned below the upper rotary pipe roller set, and the surface transmission sleeves of the three surface rollers are provided with the belt.

Preferably, the bottom end of the die carrier is connected with a die carrier roller in a rolling manner, and the die carrier is connected with the die carrier guide rail in a sliding manner by means of the die carrier roller.

Preferably, a positioning pin is vertically inserted into the movable support in a sliding manner, and the positioning pin penetrates through the movable support and is inserted into the handpiece frame.

Preferably, the rotary riding wheel on the flaring riding wheel set is a circular roller with a concave middle part.

Preferably, a plurality of ground screw rods are inserted into the bottom threads of the machine head frame, and the ground screw rods are uniformly distributed at four corners of the bottom of the machine head frame.

Preferably, the die carrier is internally and horizontally provided with two discharging oil cylinders, the output ends of the two discharging oil cylinders face the die, and the two discharging oil cylinders are vertically divided into the upper side and the lower side of the die.

Compared with the prior art, the utility model has the advantages and positive effects that,

in the utility model, a pipe is manually placed on a rotating pipe supporting wheel group on a heating station, a foot switch is stepped on, an upper rotating pipe cylinder extends out to push the upper rotating pipe roller group to descend to press the pipe, a belt sleeved on the surfaces of three rollers is used for manually pressing the pipe to loosen the pipe, an upper rotating pipe motor is started, the upper rotating pipe motor drives an upper rotating pipe roller group to rotate through chain wheel and chain transmission, so that the pipe rotates on the rotating pipe supporting wheel group, a heating oven moves forwards to a specified position under the pushing of an oven cylinder to heat the pipe by using a heating pipe, the pipe rotates while being heated, so that the pipe is uniformly heated, after the heating is finished, the heating oven returns to the original position, the upper rotating pipe motor stops manually holding the unheated end of the pipe, the upper rotating pipe cylinder retracts to drive the rotating pipe roller to separate from the pipe, the pipe is manually moved out to be placed on the heating station, one end of the pipe is placed on an upper bracket of a movable bracket, the other end of the pipe is arranged on a flaring riding wheel, a die frame propelling oil cylinder extends out to push the die frame to move forward to enable the die to enter the interior of the pipe, the pipe is stopped after reaching a specified position, a vacuum air bag is opened, air in the die is rapidly sucked into the vacuum air bag to enable a vacuum-like state to be formed between the die and the pipe, the pipe is completely and tightly attached to the outer surface of the die by external air pressure, after a period of time, the vacuum air bag is closed to enable air to enter the interior of the die to be relieved from the vacuum state, an external water cooling device sprays water to cool the pipe, after cooling is finished, a water gap is closed, after flaring is finished, a die core pulling oil cylinder contracts to enable a die expanding block to contract into the interior of the die, the propelling oil cylinder retracts to pull the die frame backwards, meanwhile, a discharging oil cylinder extends out to push a discharging plate to push the pipe out of the die, when the pipe is completely separated from the die frame, the die frame returns to the original position, the flared pipe is manually moved out of a flaring station, is placed in a material storage rack. The tubular product of different external diameters can keep tubular product center and equipment center to keep same height through adjusting the commentaries on classics pipe adjusting hand wheel and lift lead screw, and the nozzle stub of different length also can satisfy the processing requirement through removing locating pin fixed position, and is simple convenient and reliable, and this kind of nozzle stub machine compares in traditional flaring machine, and the biggest advantage is in can carrying out the flaring processing to the tubular product of shorter length, and this is that ordinary flaring machine can't accomplish, also is suitable for the nozzle stub flaring of different scope length simultaneously. The equipment is convenient to operate, flexible and simple, and reduces the labor intensity of workers. Most accessories in the equipment are universal with common flaring machine accessories, so that the processing and manufacturing difficulty is reduced, the failure rate is obviously reduced, the energy is saved, the environment is protected, and the flaring machine is an advanced flaring machine specially designed for flaring short pipes.

Drawings

FIG. 1 is a schematic top view of a short pipe machine according to the present invention;

FIG. 2 is a schematic view of the pipe spool machine of FIG. 1 from an angle A in accordance with the present invention;

FIG. 3 is a schematic view of the pipe spool of FIG. 1 taken at A-A thereof in accordance with the present invention;

FIG. 4 is a schematic view of the left side of FIG. 1 in the context of the present invention;

FIG. 5 is a schematic view of the pipe spool machine of the present invention at B-B of FIG. 1;

FIG. 6 is a schematic view of the left side of FIG. 5 of the present invention;

fig. 7 is a schematic view of the pipe spool machine of the present invention at the point C-C in fig. 5.

Illustration of the drawings: 1. a head frame; 2. an electric box; 3. an upper rotary pipe cylinder; 4. an upper rotary pipe motor; 5. an upper rotating pipe roller 6 and a rotating pipe riding wheel; 7. a pipe rotating adjusting hand wheel; 8. a pipe rotating adjusting screw rod; 9. an oven; 10. heating a tube; 11. a hydraulic stack; 12. an oven cylinder; 13. a roller; 14. oven guide rails; 15. a mold frame; 16. A mold; 17. a water tank; 18. flaring riding wheels; 19. moving a seat hand wheel; 20. a movable seat; 21. a lifting screw rod; 22. moving the support; 23. moving the linear rail pair; 24. positioning pins; 25. a ground screw rod; 26. a mold frame guide rail; 27. a die carrier roller; 28. a discharging oil cylinder; 29. a core-pulling oil cylinder; 30. a propulsion cylinder; 31. a vacuum pump; 32. vacuum air bag; 33. an oil cooler.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

As shown in figures 1-7, the utility model provides a short tube machine, which mainly comprises a heating station and a flaring station, wherein the heating station comprises a machine head frame 1, an electric box 2 is arranged on the surface of the machine head frame 1, a pipeline limiting module A is arranged on the left side of the machine head frame 1, the pipeline limiting module A comprises an upper rotating tube cylinder 3, an upper rotating tube motor 4, an upper rotating tube roller set 5, a rotating tube riding wheel set 6, a rotating tube adjusting hand wheel 7 and a rotating tube adjusting screw rod 8, the surface of the rotating tube riding wheel set 6 is in sliding connection with the machine head frame 1, the bottom end of the rotating tube riding wheel set 6 is fixedly connected with the rotating tube adjusting screw rod 8, the surface thread of the rotating tube adjusting screw rod 8 is sleeved with the rotating tube adjusting hand wheel 7, the surface of the rotating tube adjusting hand wheel 7 is in rotating connection with the machine head frame 1, a plurality of foot screw rods 25 are inserted in the bottom end thread of the machine head frame 1, the plurality of the foot rods 25 are uniformly distributed at four corners of the bottom end of the machine head frame 1, an upper rotating pipe cylinder 3 is fixedly connected to the left side of a handpiece frame 1, an upper rotating pipe roller group 5 is installed at the bottom end of the upper rotating pipe cylinder 3, an upper rotating pipe motor 4 is fixedly installed on the surface of the handpiece frame 1, an output shaft of the upper rotating pipe motor 4 is in transmission connection with the upper rotating pipe roller group 5, a pipe is placed between the upper rotating pipe roller group 5 and a rotating pipe support roller group 6, an oven guide rail 14 is fixedly connected to the inside of the handpiece frame 1, an oven 9 is slidably connected to the surface of the oven guide rail 14, heating pipes 10 are uniformly arranged on the surface of the oven 9, a hydraulic stack 11 is installed inside the handpiece frame 1, an oven cylinder 12 is installed on the right side of the oven 9, one side of the oven cylinder 12, which is far away from the oven 9, is fixedly installed with the handpiece frame 1, a flaring station comprises a die carrier 15, a die 16, a water tank 17, a flaring roller group 18, a moving seat hand wheel 19, a moving seat 20, a lifting lead screw 21, a moving support 22, The die set comprises a movable line rail pair 23, a positioning pin 24, a die set guide rail 26, a die set roller 27, discharging oil cylinders 28, core pulling oil cylinders 29, a propelling oil cylinder 30, a vacuum pump 31, a vacuum air bag 32 and an oil cooler 33, wherein the die set guide rail 26 is connected with a die set 15 in a sliding manner, the die set 15 is internally and horizontally provided with two discharging oil cylinders 28, the output ends of the two discharging oil cylinders 28 face a die 16, the two discharging oil cylinders 28 are vertically divided into an upper side and a lower side which are positioned on the die 16, the left end of the die set 15 is provided with a water tank 17, the water tank 17 is of a circular structure, the die 16 is inserted in the water tank 17 in a sliding manner, the core pulling oil cylinder 29 is installed on the left side of the die 16, one end of the core pulling oil cylinder 29 far away from the die 16 and the die set 15 are installed, the propelling oil cylinder 30 is installed at one end of the die set 15 far away from the die set 15 and the head frame 1, the vacuum pump 31 and the oil cooler are installed inside the die head frame 1, A vacuum air bag 32 and an oil cooler 33, wherein the handpiece frame 1 is provided with a flaring support roller group 18 and a moving line rail pair 23, the upper end of the moving line rail pair 23 is connected with a moving support 22 in a sliding way, a positioning pin 24 is vertically inserted in the moving support 22 in a sliding way, the positioning pin 24 penetrates through the moving support 22 and is inserted on the handpiece frame 1, one side of the moving support 22 close to the flaring support roller group 18 is connected with a support block in a vertical direction in a sliding way, the upper end of the support block is connected with a lifting screw rod 21 in a rotating way, the surface of the lifting screw rod 21 is connected with the moving support 22 in a threaded way, the bottom end of the oven 9 is provided with a roller 13, the oven 9 is connected with an oven guide rail 14 in a sliding way by means of the roller 13, the bottom end of the rotary pipe support roller group 6 is fixedly connected with two parallel round rods, the rotary pipe support roller group 6 is connected with the handpiece frame 1 in a sliding way by means of the two round rods, the sliding way that the surface of the rotary pipe support roller group 6 slides in a vertical direction up and down, oven guide rail 14 level sets up, oven 9 is located oven guide rail 14's top, oven 9 central horizontal line and go up the line midpoint between tub roller set 5 and the pipe transfer riding wheel group 6 on same horizontal plane, the top of pipe transfer riding wheel group 6 evenly is provided with a plurality of tow pulleys, a plurality of tow pulleys are the circular arc structure that the opening is up and are used for holding the pipeline, it comprises three surface gyro wheel and belt to go up tub roller set 5, two of them are located the below of three gyro wheel, the surface transmission cover of three gyro wheel has the belt, the bottom roll connection of die carrier 15 has die carrier gyro wheel 27, die carrier 15 is with the help of die carrier gyro wheel 27 and die carrier guide rail 26 sliding connection, the sunken circle roller in the middle of the pivoted riding wheel becomes on flaring riding wheel group 18.

The whole working principle of the device has the effects that the tube is manually placed on a tube rotating carrier roller group 6 on a heating station, a foot switch is stepped on, an upper tube rotating cylinder 3 extends out to push an upper tube rotating roller 13 wheel group to descend to press the tube, the tube is manually loosened by pressing the tube by using a belt sleeved on the surfaces of three rollers, an upper tube rotating motor 4 is started, the upper tube rotating motor 4 drives an upper tube rotating roller group 5 to rotate through chain wheel and chain transmission so as to drive the tube to rotate on the tube rotating carrier roller group 6, a heating oven 9 moves forwards to a specified position under the pushing of an oven 9 cylinder and heats the tube by using a heating tube 10, the tube rotates and is heated at the same time, the tube is uniformly heated, after the heating oven 9 returns to the original position, the upper tube rotating motor 4 stops, the unheated end of the tube is manually held, the upper tube rotating cylinder 3 retracts to drive the tube rotating roller 13 to be separated from the tube, manually moving the pipe out and placing the pipe on a flaring station, placing one end of the pipe on a bracket on a movable support 22 and placing the other end of the pipe on a flaring riding wheel, pushing an oil cylinder 30 of a die carrier 15 to extend and push the die carrier 15 to advance so that a die 16 enters the pipe, stopping after reaching a specified position, opening a vacuum air bag 32, rapidly sucking air in the die 16 into the vacuum air bag 32 so that a similar vacuum state is formed between the die 16 and the pipe, completely and tightly attaching the pipe to the outer surface of the die 16 by external air pressure, closing the vacuum air bag 32 after a period of time, allowing air to enter the die 16, relieving the vacuum state, spraying water by an external water cooling device to cool the pipe, closing a water gap after cooling, contracting a core pulling oil cylinder 29 of the die 16 after flaring is finished, contracting a swelling block of the die 16 into the die 16, retracting the pushing oil cylinder 30 to pull the die carrier 15 backwards, and the discharging oil cylinder 28 extends out to push the discharging plate to eject the pipe out of the die 16, and when the pipe is completely separated from the die 16 and the die carrier 15 returns to the original position, the pipe with the expanded opening is manually moved out of the expanding station and placed on the stock shelf. The pipe with different outer diameters can keep the center of the pipe and the center of the equipment to be at the same height by adjusting the rotating pipe adjusting hand wheel 7 and the lifting screw rod 21, short pipes with different lengths can meet the processing requirements by moving the positioning pin 24 to fix the position, and the device is simple, convenient and reliable.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims (10)

1. A short pipe machine is characterized in that: the automatic pipe-turning device is characterized by comprising a heating station and a flaring station, wherein the heating station comprises a head frame (1), the surface of the head frame (1) is provided with an electric box (2), the left side of the head frame (1) is provided with a pipeline limiting module A, the pipeline limiting module A comprises an upper pipe-turning cylinder (3), an upper pipe-turning motor (4), an upper pipe-turning roller group (5), a pipe-turning carrier roller group (6), a pipe-turning adjusting hand wheel (7) and a pipe-turning adjusting lead screw (8), the surface of the pipe-turning carrier roller group (6) is in sliding connection with the head frame (1), the bottom end of the pipe-turning carrier roller group (6) is fixedly connected with the pipe-turning adjusting lead screw (8), the surface thread of the pipe-turning adjusting lead screw (8) is sleeved with the pipe-turning adjusting hand wheel (7), the surface of the pipe-turning adjusting hand wheel (7) is rotationally connected with the head frame (1), the left side of the head frame (1) is fixedly connected with the upper pipe-turning cylinder (3), an upper rotating pipe roller group (5) is installed at the bottom end of the upper rotating pipe cylinder (3), an upper rotating pipe motor (4) is fixedly installed on the surface of the machine head frame (1), an output shaft of the upper rotating pipe motor (4) is in transmission connection with the upper rotating pipe roller group (5), a pipe is placed between the upper rotating pipe roller group (5) and the rotating pipe carrier roller group (6), an oven guide rail (14) is fixedly connected in the machine head frame (1), an oven (9) is connected to the surface of the oven guide rail (14) in a sliding mode, heating pipes (10) are uniformly arranged on the surface of the oven (9), a hydraulic stack (11) is installed inside the machine head frame (1), an oven cylinder (12) is installed on the right side of the oven (9), and one side, far away from the oven (9), of the oven cylinder (12) is fixedly installed with the machine head frame (1);

the flaring station comprises a die set (15), a die (16), a water tank (17), a flaring riding wheel set (18), a moving seat hand wheel (19), a moving seat (20), a lifting screw rod (21), a moving support (22), a moving line rail pair (23), a positioning pin (24), a die set guide rail (26), a die set roller (27), a discharging oil cylinder (28), a core pulling oil cylinder (29), a propelling oil cylinder (30), a vacuum pump (31), a vacuum air bag (32) and an oil cooler (33), wherein the die set guide rail (26) is connected with the die set (15) in a sliding manner, the water tank (17) is installed at the left end of the die set (15), the water tank (17) is of a circular ring structure, the die (16) is inserted in the water tank (17) in a sliding manner, the core pulling oil cylinder (29) is installed on the left side of the die set (16), and one end of the core pulling oil cylinder (29) far away from the die set (16) and the die set (15) are installed, the one end that water tank (17) was kept away from in die carrier (15) installs propulsion cylinder (30), the one end and the aircraft nose frame (1) installation of die carrier (15) are kept away from in propulsion cylinder (30), aircraft nose frame (1) internally mounted has vacuum pump (31), vacuum gas bag (32) and oil cooler (33), install flaring riding wheel group (18) and remove the vice (23) of line rail on aircraft nose frame (1), the upper end sliding connection who removes the vice (23) of line rail has movable support (22), direction sliding connection has the tray about one side that movable support (22) are close to flaring riding wheel group (18), the upper end of tray is rotated and is connected with lift lead screw (21), the surface and the movable support (22) threaded connection of lift lead screw (21).

2. The pipe spooling machine of claim 1, wherein: the bottom end of the oven (9) is provided with a roller (13), the oven (9) is in sliding connection with an oven guide rail (14) by means of the roller (13), the bottom end of the rotary pipe supporting wheel group (6) is fixedly connected with two parallel round rods, the rotary pipe supporting wheel group (6) is in sliding connection with the handpiece frame (1) by means of the two round rods, and the sliding direction between the surface of the rotary pipe supporting wheel group (6) and the handpiece frame (1) is vertical to the vertical direction.

3. The pipe spooling machine of claim 2, wherein: the oven guide rail (14) is horizontally arranged, the oven (9) is positioned above the oven guide rail (14), and the central horizontal line of the oven (9) and the midpoint of a connecting line between the upper rotary pipe roller group (5) and the rotary pipe supporting roller group (6) are positioned on the same horizontal plane.

4. The pipe spool of claim 3, wherein: a plurality of tugs are uniformly arranged above the rotating pipe supporting wheel group (6), and the supporting wheels are of arc structures with upward openings and are used for supporting pipelines.

5. The pipe spool of claim 4, wherein: the upper rotary pipe roller set (5) is composed of three surface rollers and a belt, wherein two of the three surface rollers are located below, and the surface transmission sleeves of the three surface rollers are provided with the belt.

6. The pipe spool of claim 5, wherein: the bottom roll connection of die carrier (15) has die carrier gyro wheel (27), die carrier (15) are with the help of die carrier gyro wheel (27) and die carrier guide rail (26) sliding connection.

7. The pipe spooling machine of claim 6, wherein: the positioning pin (24) is vertically inserted into the movable support (22) in a sliding mode, and the positioning pin (24) penetrates through the movable support (22) and is inserted into the handpiece frame (1).

8. The pipe spool of claim 7, wherein: the rotary riding wheel on the flaring riding wheel set (18) is a circular roller with a concave middle part.

9. The pipe spool of claim 8, wherein: the bottom end threads of the machine head frame (1) are inserted with a plurality of ground screw rods (25), and the ground screw rods (25) are uniformly distributed at four corners of the bottom end of the machine head frame (1).

10. The pipe spooling machine of claim 9, wherein: two discharging oil cylinders (28) are horizontally arranged in the die carrier (15), the output ends of the discharging oil cylinders (28) face the die (16), and the discharging oil cylinders (28) are vertically divided into the upper side and the lower side of the die (16).

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