CN102862214B - High-pressure toilet moulding machine capable of producing ring and body together - Google Patents

Abstract

A high-pressure toilet forming machine with rings produced by the same machine belongs to the technical field of sanitary ceramics production equipment and is used for producing toilet products. Its technical proposal is: the forming machine unit and the body conveying line, the seat ring conveying line, and PLC control The device consists of a forming machine including a main frame, a body forming machine, a rotary transfer machine, a seat ring forming machine, and a seat ring lifting transfer machine. Multiple forming machine units are arranged in parallel, and two conveying lines traverse all forming machine units. The body forming machine is installed on the right side inside the main frame, the rotary transfer machine is installed outside the main frame, on the right side of the body forming machine, the seat ring forming machine is installed on the beam on the left side of the main frame, and the seat ring lifting transfer machine is installed Above the seat ring forming machine. The invention realizes the simultaneous production of the seat ring and the body during high-pressure grouting of the toilet, and does not need to stop the production of the whole line when the production is changed or overhauled. At the same time, the seat ring can be automatically demoulded, which improves the overall automation level of the equipment.

Description

A high-pressure toilet seat molding machine that produces rings on the same machine

technical field

The invention relates to high-pressure grouting molding equipment for toilet products, and belongs to the technical field of sanitary ceramic production equipment.

Background technique

In the production of sanitary ceramics, the body and the seat of the toilet are produced separately by two production lines, and then the body and the seat of the toilet are assembled on a conveyor line for bonding and trimming. Since the seat ring forming equipment has multiple sets of models for one device, the entire line needs to be shut down every time the model is changed and the production is changed. The above problems also exist during equipment maintenance, which seriously restricts the production capacity of the equipment. At the same time, the seat ring forming equipment is manual demoulding, which requires a special person to complete this work. This kind of production process and production equipment is no longer suitable for the needs of current production development, and it is necessary to improve it.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high-pressure toilet molding machine that produces the ring body on the same machine. This molding machine adopts single-machine single-mode and multi-machine connection production. The molding process is fully automated. the

The technical scheme that solves the above-mentioned technical problem is:

A high-pressure toilet forming machine with ring body produced by the same machine, which is composed of a forming machine unit, a body conveying line, a seat ring conveying line, and a PLC control device. The forming machine unit includes: a main frame, a body forming machine, and a rotary transfer machine , seat ring forming machine, seat ring lifting and transferring machine; the main body conveying line is installed on the ground on one side of the rotating transfer machine, the seat ring conveying line is installed on the upper middle of the rear part of the main frame, and the main body forming machine is installed on the right side inside the main frame On the ground on the side, the rotary transfer machine is installed outside the main frame, on the right side of the main body forming machine, the seat ring forming machine is installed on the beam on the left side of the main frame, and the seat ring lifting transfer machine is installed above the seat ring forming machine.

For the high-pressure toilet seat forming machine produced by the same ring body, there are 6-10 forming machine units, which are arranged in parallel, and the body conveying line and the seat circle conveying line traverse all forming machine units.

The high-pressure toilet seat forming machine produced by the same machine as the above ring body, the body forming machine is composed of a base, a hinge, a lower mold opening and closing cylinder, a body frame, a lower mold pushing plate, a linear guide rail of the lower mold pushing plate, a body model, a side Type push plate, side slide rail, side lock, side opening and closing cylinder, core pulling mechanism, upper type opening and closing mold cylinder, upper type guide column, upper type pushing plate, upper type pneumatic lock, lower type pneumatic lock, The base is located at the bottom of the equipment, the upper part of the base is the body frame, and a hinge is installed between the two. The lower type push plate is installed on the bottom layer inside the body frame, connected with the body frame through the linear guide rail of the lower type push plate, and the lower type push plate The lower mold opening and closing cylinder is installed at the bottom; the side slide rails are respectively installed on both sides of the body frame, and the side push plates are located on the side slide rails, which are two symmetrical pieces, and an upper and lower push plate is installed in the center of each side push plate. Locking oil cylinders, four sets of side locks in total, installed on the side push plate, side lock oil cylinder is installed on the outside of the left side lock, swing cylinder is installed on the outside of the right side lock, left and right side push plates Each is equipped with a side mold opening and closing cylinder; the upper mold pushing plate is located above the body frame, and there are two upper mold guide columns on it, and the upper mold opening and closing cylinder is in the middle; two sets of upper molds are symmetrically installed on the upper mold pushing plate Pneumatic lock, two sets of lower type pneumatic locks are symmetrically installed under the lower type push plate.

The high-pressure toilet seat forming machine produced by the same machine as the above-mentioned ring body, the core-pulling mechanism is composed of a core-pulling mounting seat, a core-pulling oil cylinder, a core-pulling slide seat, and two sets of core-pulling pneumatic locks, and the core-pulling mounting seat is located outside the body frame. The core-pulling cylinder is installed at the left end of the bottom of the core-pulling slide, the right side is the core-pulling slide, and the core-pulling pneumatic lock is installed on both sides inside the core-pulling slide.

The high-pressure toilet seat molding machine produced by the same machine as the above-mentioned ring body, the rotary transfer machine is composed of a rail bracket, a 180-degree swing cylinder, a forklift cylinder, a transfer machine trolley, a drive motor, a lifting arm, and a forklift. One end of the rail bracket It is fixed with the body frame, one end is fixed with the ground, the transfer trolley is installed on the rail bracket, the lifting arm and the forklift cylinder are installed on the transfer trolley, the 180-degree swing cylinder is installed above the lifting arm, and the forklift is installed under the lifting arm .

The high-pressure toilet seat molding machine produced by the same machine as the above-mentioned ring body, the body conveyor line is composed of a conveyor line frame, a stepping block, a block track, a shift fork, and a block drive motor, the block track is inside the conveyor line frame, and the step block is in the Inside the trolley track, a total of eight sets of shift forks are installed above the stepping trolley in equal parts, and the trolley drive motor is installed on the conveyor line frame.

The high-pressure toilet seat forming machine produced by the same machine as the above-mentioned ring body, the seat ring forming machine is composed of a machine base, a moving plate, a seat ring pushing plate, a molding pressure cylinder, and a seat ring model, and the moving plate and the pushing plate are inside the machine base. The moving plate is connected with the lifting and transferring machine of the seat ring, the pushing plate is placed on the machine base, the cylinder barrel of the molding pressure cylinder is connected with the machine base, and the piston rod of the molding pressure oil cylinder is connected with the pushing plate.

The high-pressure toilet seat forming machine produced by the same machine as the above-mentioned ring body, the seat ring lifting and transferring machine is composed of a moving plate hanger, a lifting and transferring machine track, a translation cylinder, a transferring machine trolley, a transferring machine guide column, and a lifting oil cylinder , the lifting and transferring machine track is installed on the upper middle of the rear part of the main frame, the transferring machine trolley is installed above the lifting and transferring machine track, the cylinder barrel of the translation cylinder is connected with the main frame, and the piston rod of the translation cylinder is connected with the transfer machine trolley, There are two sets of transfer machine guide columns and lifting cylinders installed above the transfer machine trolley, the movable plate hanger is located under the transfer machine trolley, and the transfer machine guide columns and lifting cylinder piston rods are respectively connected to it.

In the high-pressure toilet forming machine produced by the same ring body, the seat ring conveying line is a chain conveying line, and a cylinder stopper is installed at the corresponding part of each seat ring forming machine.

The benefits of the present invention are:

The present invention changes the traditional production mode in which the toilet body and the seat ring are produced separately by two production lines, and then assembled. It adopts single-machine, single-mode, and multi-machine connection production. The toilet body and seat ring can be automatically demoulded, and the entire molding process All automated. The invention realizes the simultaneous production of the seat ring and the body during the high-pressure grouting of the toilet, and does not need to stop the production of the whole line when the production is changed or overhauled, thereby improving the production efficiency and having remarkable economic benefits.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is A-A sectional view of Fig. 1;

Fig. 4 is a B-B sectional view of Fig. 3 .

The markings in the figure are as follows: base 1, hinge 2, lower mold opening and closing cylinder 3, body frame 4, lower mold push plate 5, body model 6, side mold push plate 7, side mold lock 8, core pulling mounting seat 9, Core-pulling cylinder 10, core-pulling slide seat 11, core-pulling pneumatic lock 12, upper mold opening and closing cylinder 13, upper mold guide column 14, upper mold pushing plate 15, rail bracket 16, 180-degree swing cylinder 17, forklift cylinder 18. Transfer trolley 19, drive motor 20, lifting arm 21, forklift 22, main body conveying line 23, main frame 24, lifting cylinder 25, transfer guide column 26, transfer trolley 27, translation cylinder 28, lift Transfer machine track 29, moving plate hanger 30, moving plate 31, machine base 32, seat ring model 33, seat ring pushing plate 34, molding pressure cylinder 35, seat ring conveying line 36, seat ring tooling plate 37, tilting oil cylinder 38. Lower type pneumatic lock 39, side type mold opening and closing cylinder 40, upper and lower type locking cylinder 41, side type locking oil cylinder 42, upper type pneumatic lock 43, swing cylinder 44, lower type push plate linear guide 45, side type Slide rail 46, body transmission line frame 47, pulley track 48, stepping block 49, shift fork 50, block drive motor 51, cylinder blocker 52, body forming machine 53, rotary transfer machine 54, seat ring forming machine 55, Seat lifting transfer machine 56.

Detailed ways

Shown in the figure, the present invention is made up of 8 independent forming machine units, body conveying line 23, seat ring conveying line 36, and PLC control device.

Each forming machine unit includes: main frame 24, body forming machine 53, rotary transfer machine 54, seat ring forming machine 55, seat ring lifting transfer machine 56. Eight forming machine units are arranged in parallel on a straight line, and the main body is conveyed The line 23 is installed on the ground on one side of the rotary transfer machine 54, the seat ring conveying line 55 is installed in the middle and upper part of the main frame 24 rear, and the two conveying lines traverse all the forming machine units. The main frame 44 is made of H-shaped steel for Supports body forming and seat ring forming equipment.

As shown in the figure, the body forming machine 53 of each forming machine is installed on the ground on the right side inside the main frame 24, the rotary transfer machine 54 is installed outside the main frame 24, and is located on the right side of the body forming machine 53, and the seat ring forming machine 55 is installed on the beam on the left side of the main frame 24, and the seat ring lifting transfer machine 56 is installed above the seat ring forming machine 55.

Shown in the figure, the body forming machine 53 is composed of a base 1, a hinge 2, a lower mold opening and closing cylinder 3, a body frame 4, a lower type push plate 5, a lower type push plate linear guide 45, a body model 6, and a side type push plate 7 , side type slide rail 46, side type lock 8, side type opening and closing mold cylinder 40, core pulling mechanism, upper type opening and closing mold oil cylinder 13, upper type guide post 14, upper type pushing plate 15, upper type pneumatic lock 43, Down type pneumatic lock 39, inclined oil cylinder 38 form.

The base 1 is located at the bottom of the device, the top of the base 1 is a body frame 4, and a hinge 2 is installed between the two. The lower type push plate 5 is installed on the inner bottom of the body frame 4, and is connected with the body frame 4 by the lower type push plate linear guide 45, and the lower type push plate 5 below is installed with the lower type opening and closing mold oil cylinder 3.

The side slide rails 46 are respectively installed on both sides of the body frame 4, and the side push plate 7 is located on the side slide rail 46, which are two symmetrical pieces, and an upper and lower locking cylinder 41 is installed in the center of each side push plate 7 , side type lock 8 altogether four groups, are installed on the side type push plate 7, side type lock oil cylinder 42 is installed on the outside of left side type lock, swing cylinder 44 is installed on the outside of right side type lock, left and right side type push plate A side mold opening and closing mold cylinder 40 is respectively installed on the top.

Upper type push plate 15 is positioned at body frame 4 inner tops, and two upper type guide pillars 14 are arranged above, and upper type opening and closing mold oil cylinder 13 is in the middle. Two groups of upper type pneumatic locks 43 are symmetrically installed on the upper type push plate 15, and two groups of lower type pneumatic locks 39 are symmetrically installed below the lower type push plate.

As shown in the figure, the core-pulling mechanism is composed of a core-pulling mounting base 9, a core-pulling oil cylinder 10, a core-pulling slide 11, and two sets of core-pulling pneumatic locks 12. The core-pulling mounting seat 9 is located outside the body frame 4, the core-pulling oil cylinder 10 is installed at the bottom left end of the core-pulling slide 11, the right side is the core-pulling slide, and the core-pulling pneumatic lock 12 is installed on both sides inside the core-pulling slide 11.

Shown in the figure, rotary transfer loader 54 is made up of track bracket 16, 180 degree swing cylinder 17, forklift oil cylinder 18, transfer loader tackle 19, drive motor 20, elevating arm 21, forklift 22. One end of the track bracket 16 is fixed to the body frame 4, and the other end is fixed to the ground. The loader trolley 19 is installed on the track bracket 16, the lifting arm 21 and the forklift cylinder 18 are installed on the loader tackle 19, and the 180-degree swing cylinder 17 Be installed on lifting arm 21] side, forklift 22 is installed on lifting arm 21 below.

Show among the figure, body conveying line 23 is made up of body conveying line frame 47, stepping tackle 49, tackle track 48, shift fork 50, tackle drive motor 51. Tackle track 48 is inside body conveying wire frame 47, and stepping tackle 49 is inside tackle rail 48, and shift fork 50 altogether eight groups of equal divisions are installed on stepping tackle 49 tops, and tackle driving motor 51 is installed on body conveying wire frame 4.

As shown in the figure, the seat ring forming machine 55 is composed of a machine base 32, a moving plate 31, a seat ring pushing plate 34, a molding pressure cylinder 35, and a seat ring model 33. The moving plate 31 and the seat ring pushing plate 34 are in the machine base 32, wherein the moving plate 31 is connected with the seat ring lifting transfer machine 56, the seat ring pushing plate 34 is placed on the machine base 32, and the cylinder barrel of the molding oil cylinder 35 is connected with the The support links to each other, and the piston rod of the molding pressure oil cylinder 35 links to each other with the seat ring advancing plate 34.

Shown in the figure, the seat ring lifting and transferring machine 56 is made up of moving plate hanger 30, lifting and transferring machine track 29, translation cylinder 28, transferring machine trolley 27, transferring machine guide column 26, and lifting oil cylinder 25. The lifting and transferring machine track 29 is installed on the middle top of the main frame 24 rear portion, and the moving machine trolley 27 is installed on the lifting and transferring machine track 29, the cylinder barrel of the translation cylinder 28 is connected with the main frame 24, and the piston rod of the translation cylinder 28 is connected with the main frame 24. The transfer machine trolley 27 is connected, two sets of transfer machine guide columns 26 and lifting cylinders 25 are installed above the transfer machine trolley 27, the moving plate hanger 30 is located under the transfer machine trolley 27, the transfer machine guide columns 26 and the lifting cylinder 25 piston rods are connected with it respectively.

As shown in the figure, the seat ring conveying line 36 is a chain conveying line that can be accumulated, and a cylinder stopper 52 is installed at the corresponding position of each seat ring forming machine 55 for positioning the seat ring tooling plate 37 .

Working process of the present invention is as follows:

(1) Close the mold.

The forklift 22 of the rotary transfer machine 54 is at the lower limit in the direction of the rotary transfer machine 23 on the main body conveying line, and the main body forming machine 53 and the seat ring forming machine 55 start the mold clamping procedure at the same time, as follows:

①Closing process of body molding machine 53:

Under the control of the program, the side mold opening and closing cylinder 40 advances, and the side mold pushing plate 7 is pushed to close. When it is in place, the side mold lock 8 is closed, and the upper mold opening and closing cylinder 13 and the lower mold opening and closing cylinder 3 work simultaneously. The type descends, the lower type rises, and after the upper and lower types are closed in place, the upper type pneumatic lock 43 and the lower type pneumatic lock 39 are closed, the core-pulling cylinder 10 advances, and the core-pulling slide 11 and the core are pushed forward until they are in place, and the core-pulling pneumatic lock 12 Close to complete the closing process of the device. After the equipment is fully closed and in place, the side-type locking oil cylinder 42 and the upper and lower type locking oil cylinders 41 are pressurized to the pressure limit at the same time, and the entire mold clamping process of the main body forming machine is completed.

② Mold clamping process of seat ring forming machine 55:

The molding pressure oil cylinder 35 advances, and promotes the seat ring pushing plate 34 to advance until the seat ring model is closed and reaches the pressure limit.

(2) Grouting.

(3) Open the mold.

After the grouting process is completed, the body molding machine (53) and the seat ring molding machine (55) start the mold opening program at the same time, as follows:

①Mold opening process of body forming machine (53):

The whole process is opposite to the mold closing process of the main body molding machine. After the upper mold, the lower mold and the core are opened, the side mold will not be opened temporarily. At this time, the lifting arm 21 of the rotary transfer machine 54 drives the forklift 22 to rise, and the forklift 22 is placed. The tooling plate and the forklift 22 are raised and rotated 180 degrees after being raised, and the loader tackle 19 and the forklift 22 are driven by the drive motor 20 to advance to the front limit position. On the tooling plate on the forklift 22, the forklift 22 retreats to the initial position, the forklift 22 reversely rotates 180 degrees, the forklift 22 descends to the lower limit, the tooling plate and the product fall on the body conveying line 23, and the whole mold opening process is completed.

②Mold opening process of seat ring forming machine (55):

The molding pressure oil cylinder 35 retreats, pulls the seat ring pusher plate 34 to move back in place, and the product stays on the model on the side of the moving plate 31, and the lifting cylinder 25 of the seat ring lifting transfer machine 56 rises, driving the moving plate hanger 30 and the moving plate 31 And the model rises to the upper limit, the moving plate 31 and the model turn over 90 degrees, the model faces down, and the translation cylinder 28 pushes the transfer machine trolley 27 to the front limit. At this time, the moving plate 31 and the model reach the top of the seat ring conveying line , lifting oil cylinder 25 descends, and the bottom of the product in the model on the moving plate 31 stops descending when being about 10mm height from the seat ring tooling plate 37, and the product demoulding is on the seat ring tooling plate 37. After the seat ring product is demoulded, the lifting cylinder 25 rises, the transfer trolley 27 returns to the initial position, the moving plate 31 turns to a vertical state, the lifting cylinder 25 descends, and the moving plate returns to its original position.

(4) Start the next mold clamping and grouting process.

(5) The toilet body and seat products are conveyed forward along the body conveying line 23 and the seat conveying line 36 respectively.

Claims (9)

1. A high-pressure toilet seat molding machine produced by the same ring body is characterized in that: it is composed of a molding machine unit, a body conveying line (23), a seat ring conveying line (36), and a PLC control device. The molding machine unit includes : main frame (24), body molding machine (53), rotary transfer machine (54), seat ring forming machine (55), seat ring lifting transfer machine (56); body conveying line (23) is installed on the rotary transfer On the ground on one side of the carrier (54), the seat ring delivery line (36) is installed on the middle and upper part of the main frame (24) rear, and the body forming machine (53) is installed on the ground on the right side inside the main frame (24), The rotary transfer machine (54) is installed outside the main frame (24), on the right side of the body forming machine (53), the seat ring forming machine (55) is installed on the crossbeam on the left side of the main frame (24), and the seat ring lifts The transfer machine (56) is installed above the seat ring forming machine (55). 2. The high-pressure toilet seat forming machine produced by the ring body on the same machine according to claim 1, characterized in that: the forming machine units are 6-10 units, which are arranged in parallel, and the body conveying line (23) and the seat ring convey Line (36) traverses all former units. 3. The high-pressure toilet seat molding machine produced by the ring body on the same machine according to claim 2, characterized in that: the body molding machine (53) is composed of a base (1), a hinge (2), and a lower mold opening and closing cylinder (3), body frame (4), lower type push plate (5), lower type push plate linear guide (45), body model (6), side type push plate (7), side type slide rail (46), Side lock (8), side mold opening and closing cylinder (40), core pulling mechanism, upper mold opening and closing cylinder (13), upper mold guide post (14), upper mold pushing plate (15), upper mold pneumatic lock (43), lower type pneumatic lock (39), and tilting oil cylinder (38), the base (1) is located at the bottom of the equipment, the upper part of the base is the body frame (4), and a hinge (2) is installed between the two, the lower type The push plate (5) is installed on the inner bottom layer of the body frame (4), and is connected with the body frame (4) through the linear guide rail (45) of the bottom type push plate (4), and the bottom mold opening and closing cylinder (3 ); the side slide rails (46) are installed on both sides of the body frame (4) respectively, and the side push plate (7) is located on the side slide rail (46), which are two symmetrical pieces, and each side push plate (7) An up and down type locking oil cylinder (41) is installed in the center, and there are four groups of side type locks (8), which are installed on the side type pushing plate (7), and side type locking oil cylinders ( 42), a swing cylinder (44) is installed on the outside of the right side type lock, and a side type opening and closing mold cylinder (40) is respectively installed on the left and right side type push plates; the upper type push plate (15) is located on the body frame (4) On the top of the interior, there are two upper-type guide pillars (14) on it, and the upper-type mold opening and closing cylinder (13) in the middle; two sets of upper-type pneumatic locks (43) are symmetrically installed on the upper-type push plate (15), and the lower-type pusher Two groups of lower type pneumatic locks (39) are symmetrically installed below the plate. 4. The high-pressure toilet seat molding machine produced by the ring body on the same machine according to claim 3, characterized in that: the core-pulling mechanism consists of a core-pulling mounting seat (9), a core-pulling oil cylinder (10), and a core-pulling slide (11), composed of two sets of core-pulling pneumatic locks (12), the core-pulling mounting seat (9) is located outside the body frame (4), and the core-pulling oil cylinder (10) is installed at the left end and right side of the bottom of the core-pulling slide seat (11) It is a core-pulling slide seat, and the core-pulling pneumatic lock (12) is installed on both sides inside the core-pulling slide seat (11). 5. The high-pressure toilet seat forming machine produced by the ring body on the same machine according to claim 4, characterized in that: the rotary transfer machine (54) is composed of a rail bracket (16), a 180-degree swing cylinder (17), Forklift cylinder (18), loader tackle (19), drive motor (20), lifting arm (21), forklift (22), one end of the rail bracket (16) is fixed to the body frame (4), and one end is connected to the ground Fixed, the loader trolley (19) is installed on the rail bracket (16), the lifting arm (21) and the forklift cylinder (18) are installed on the loader tackle (19), and the 180-degree swing cylinder (17) is installed on the Above the lifting arm (21), the forklift (22) is installed below the lifting arm (21). 6. The high-pressure toilet seat molding machine produced by the coil body on the same machine according to claim 5, characterized in that: the body conveying line (23) consists of a body conveying line frame (47), a stepping block (49), a block Track (48), shift fork (50), pulley drive motor (51) is formed, and pulley track (48) is inside body conveying line frame (47), and stepping pulley (49) is inside pulley track (48), and shift fork (50) eight groups of equal divisions are installed on the stepping block (49) top, and the block drive motor (51) is installed on the body transmission line frame (4). 7. The high-pressure toilet seat forming machine produced by the ring body on the same machine according to claim 6, characterized in that: the seat ring forming machine (55) is propelled by the machine base (32), the moving plate (31), and the seat ring Plate (34), molding cylinder (35) seat ring model (33), the moving plate (31) and the seat ring pushing plate (34) are in the machine base (32), the moving plate (31) and the seat ring lift and move The loader (56) is connected, the seat ring pusher plate (34) is placed on the machine base (32), the cylinder barrel of the molding pressure cylinder (35) is connected with the machine base, and the piston rod of the molding pressure oil cylinder (35) and the seat ring push Plate (34) is connected. 8. The high-pressure toilet seat forming machine produced by the ring body on the same machine according to claim 7, characterized in that: the seat ring lifting and transferring machine (56) is composed of a moving plate hanger (30), a lifting and transferring machine track (29), translational cylinder (28), transfer machine trolley (27), transfer machine guide column (26), lifting oil cylinder (25), the lifting transfer machine track (29) is installed behind the main frame (24) In the upper middle of the part, the transfer machine trolley (27) is installed above the lifting transfer machine track (29), the cylinder barrel of the translation cylinder (28) is connected with the main frame (24), and the piston rod of the translation cylinder (28) is connected with the transfer The transfer machine trolley (27) is connected, two sets of transfer machine guide columns (26) and lifting cylinders (25) are installed above the transfer machine trolley, and the moving plate hanger (30) is located under the transfer machine trolley (27). Machine guide post (26) and lifting oil cylinder (25) piston rod are connected with it respectively. 9. The high-pressure toilet seat forming machine produced by the ring body on the same machine according to claim 8, characterized in that: the seat ring conveying line (36) is a chain conveying line, and each seat ring forming machine (55) corresponds to The position is equipped with a cylinder stopper (52).